Die-casting die for machining automobile precision parts

Abstract

The invention relates to the technical field of automobile aluminum accessory machining, and discloses a die-casting die for automobile precision part machining, which comprises a supporting mechanism, and further comprises a frame mechanism, a pressurizing mechanism and a rotating mechanism, the bottom end of the supporting mechanism is connected with the side surface of the pressurizing mechanism, and the top end of the frame mechanism is connected with the side surface of the pressurizing mechanism; the T-shaped sliding block slides on the inner side of the spiral groove to drive the discharging pipe to rotate, so that the phenomena of retention, air holes or uneven filling of molten metal are eliminated; the pressurizing mechanism comprises a fixed pipe and a spiral pipe, a feeding hopper is fixedly connected to the side face of the fixed pipe, a feeding pipe is arranged on the side face of the fixed pipe, a movable arc plate is connected to the inner side of the fixed pipe, and the spiral pipe is connected to the inner side of the movable arc plate; and an I-shaped sliding plate is driven to turn over through a rotating motor, a second sliding plate is driven to turn over into an inserting groove to fix the mold, and the casting precision problems such as deformation and dislocation caused by uneven supporting can be prevented advantageously.

Description

Technical Field

[0001] This invention relates to the field of automotive aluminum parts processing technology, and more specifically to a die-casting mold for processing precision automotive parts. Background Technology

[0002] Pressure casting is a casting method in which liquid or semi-solid metal or alloy, or liquid metal or alloy containing reinforcing phases, is filled into the cavity of a die-casting mold at high pressure and high speed, and the metal or alloy solidifies under pressure to form a casting. The principle of pressure casting is mainly the injection forming principle of molten metal. However, this casting method has certain problems, as follows: First, existing equipment has some small gaps during the liquid metal filling process that prevent the metal from being pressed in. This uneven distribution can lead to the molten metal not completely filling the mold cavity, forming pores or shrinkage cavities, which weakens the strength and durability of the casting. Moreover, the high liquid metal filling speed during die casting makes it difficult to completely remove the gas in the mold cavity, making the casting prone to defects such as pores, cracks, and oxide deposits. Die castings usually cannot be heat treated. Second, during the casting process, the support rods on both sides of the mold can easily cause obstruction when the liquid is uniform, and if they fall off during rotation, more serious accidents may occur; improper position of the support rods may hinder uniform cooling of the mold, leading to internal stress or deformation of the casting.

[0003] Therefore, the present invention urgently needs a die-casting mold for machining precision automotive parts. Summary of the Invention

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a die-casting mold for machining precision automotive parts, so as to solve the problems existing in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a die-casting mold for machining precision automotive parts, comprising a support mechanism, a frame mechanism, a pressurizing mechanism, and a rotating mechanism, wherein the bottom end of the support mechanism is connected to the side of the pressurizing mechanism, the top end of the frame mechanism is connected to the side of the pressurizing mechanism, the inner side of the support mechanism is fixedly connected to the side of the rotating mechanism, and the top end of the rotating mechanism is fixedly connected to the inner side of the frame mechanism. The pressurizing mechanism includes a fixed tube and a spiral tube. A feed hopper is fixedly connected to the side of the fixed tube, and a feed pipe is opened on the side of the fixed tube. A movable arc plate is connected to the inside of the fixed tube, and a spiral tube is connected to the inside of the movable arc plate. The rotating mechanism includes an I-shaped sliding plate and a second sliding plate. The side of the I-shaped sliding plate is connected to the side of the second sliding plate. The side of the I-shaped sliding plate is connected to a first sliding plate. The side of the first sliding plate is connected to a T-shaped shaft. The side of the T-shaped shaft is connected to the side of the support mechanism.

[0006] Furthermore, the support mechanism includes a U-shaped load-bearing plate and a support upright plate. The side of the U-shaped load-bearing plate is provided with a moving groove. A support rod is fixedly connected to the top of the U-shaped load-bearing plate. A U-shaped support frame is fixedly connected to the bottom of the support rod. A lifting ring is fixedly connected to the bottom of the U-shaped support frame. The inner side of the lifting ring is connected to the side of the fixed tube. The inner side of the U-shaped load-bearing plate is fixedly connected to the side of the support upright plate.

[0007] Furthermore, the side of the support plate is provided with an annular groove, the inner side of which is connected to the side of the rotating mechanism, and the side of the support plate is provided with a rotating groove, the inner side of which is connected to the side of the T-shaped shaft.

[0008] Furthermore, the frame mechanism includes a first mold and a second mold. The top of the first mold has a fixing groove, the inner side of which is connected to the inner side of the fixing tube. The side of the first mold has a placement groove, the inner side of which is connected to a heating wire. The side of the second mold has an insertion groove, the inner side of which is connected to the side of the rotating mechanism. The top of the second mold has an air outlet groove, and a magnet plate is fixedly connected to the side of the second mold.

[0009] Furthermore, the spiral tube has a spiral groove on its side, a push rod is connected to the inner side of the spiral tube, a locking block is fixedly connected to the top of the spiral tube, a discharge pipe is fixedly connected to the top of the spiral tube, the top of the discharge pipe is fixedly connected to the inner side of the fixed groove, an inlet is provided on the side of the spiral tube, a steering pipe is fixedly connected to the top of the fixed pipe, the side of the steering pipe is connected to the inner side of the fixed groove, and an installation groove is provided at the top of the movable arc plate, the inner side of which is fixedly connected to the side of the T-shaped sliding block.

[0010] Furthermore, the side of the T-shaped sliding block is connected to the inner side of the spiral groove, the inner side of the steering tube is provided with a first rotating groove, the inner side of the first rotating groove is connected to the side of the locking block, the top of the first rotating groove is provided with a sliding groove, the inner side of the sliding groove is connected to the side of the locking block, and the top of the sliding groove is provided with a second rotating groove.

[0011] Furthermore, a fixing rod is fixedly connected to the bottom end of the second sliding plate, the side of the fixing rod is connected to the inner side of the insertion groove, a connecting rod is fixedly connected to the side of the I-shaped sliding plate, the side of the connecting rod is connected to the inner side of the annular sliding groove, and a connecting plate is fixedly connected to the top end of the connecting rod.

[0012] Furthermore, a baffle is fixedly connected to the side of the linkage plate, a rotary motor is fixedly connected to the top of the baffle, the side of the rotary motor is fixedly connected to the side of the rotating groove, and the side of the linkage plate is connected to the side of the supporting plate.

[0013] The technical effects and advantages of this invention are as follows: 1. This invention, by incorporating a pressurizing mechanism, uses a T-shaped sliding block sliding inside the spiral groove to drive the discharge pipe to rotate. This helps eliminate stagnation, porosity, or uneven filling of the molten metal, ensuring that each part is fully filled, thereby preventing defects in the casting. The rotating flow of the molten metal increases the shear force and turbulence of the liquid, which can bring air bubbles and solid inclusions to the liquid surface and discharge them through the exhaust system, thereby improving the density and quality of the casting.

[0014] 2. The present invention has a rotating mechanism that uses a rotary motor to drive the I-shaped sliding plate to flip, which in turn drives the second sliding plate to flip into the insertion slot to fix the mold. This helps to prevent casting accuracy problems such as deformation and misalignment caused by uneven support. In addition, disassembling the support rod can reduce the internal stress of the casting and avoid cracks or deformation.

[0015] 3. The present invention incorporates heating wires to heat the mold, causing the gas inside to expand and escape from the mold. This facilitates the escape of gas, reduces gas accumulation, thereby improving the density and quality of the casting and avoiding porosity and surface defects. It also helps to reduce the cooling rate of the mold surface, allowing the molten metal to flow more evenly and fill the mold. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the support mechanism structure of the present invention; Figure 3 This is a schematic diagram of the frame mechanism structure of the present invention; Figure 4 This is a schematic diagram of the pressurization mechanism of the present invention; Figure 5 This is a schematic cross-sectional view of the spiral tube structure of the present invention; Figure 6 This is a schematic diagram of the cross-sectional structure of the fixed tube of the present invention; Figure 7 This is a schematic diagram of the rotating mechanism structure of the present invention; Figure 8 This is a schematic diagram of the disassembled structure of the rotating mechanism of the present invention; Figure 9 This is a heating circuit diagram of the present invention.

[0017] The attached figures are labeled as follows: 1. Support mechanism; 101. U-shaped load-bearing plate; 102. Moving groove; 103. U-shaped support frame; 104. Lifting ring; 105. Support rod; 106. Supporting upright plate; 107. Annular slide groove; 108. Rotating groove; 2. Frame mechanism; 201. First mold; 202. Second mold; 203. Insertion slot; 204. Fixing slot; 205. Heating wire; 206. Magnet plate; 207. Placement slot; 208. Air outlet slot; 3. Pressurization mechanism; 31. Fixed pipe; 311. Feed hopper; 312. Feed pipe; 32. Spiral pipe; 321. Spiral groove; 322. Push rod; 323. Locking block; 324. Discharge pipe; 325. Feed inlet; 33. Diverting pipe; 331. First rotating groove; 332. Sliding groove; 333. Second rotating groove; 34. Moving arc plate; 341. Mounting groove; 342. T-shaped sliding block; 4. Rotating mechanism; 41. I-shaped sliding plate; 411. First sliding plate; 412. T-shaped shaft; 42. Second sliding plate; 421. Fixed rod; 43. Linking plate; 431. Rotary motor; 432. Baffle; 434. Linking rod. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The die-casting mold for processing precision automotive parts involved in the present invention is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Reference Figures 1 to 3 and Figure 9 The present invention provides a die-casting mold for processing precision automotive parts, including a support mechanism 1, a frame mechanism 2, a pressure mechanism 3 and a rotation mechanism 4. The bottom end of the support mechanism 1 is connected to the side of the pressure mechanism 3, the top end of the frame mechanism 2 is connected to the side of the pressure mechanism 3, the inner side of the support mechanism 1 is fixedly connected to the side of the rotation mechanism 4, and the top end of the rotation mechanism 4 is fixedly connected to the inner side of the frame mechanism 2. The pressurizing mechanism 3 includes a fixed pipe 31 and a spiral pipe 32. A feed hopper 311 is fixedly connected to the side of the fixed pipe 31, and a feed pipe 312 is opened on the side of the fixed pipe 31. A movable arc plate 34 is connected to the inside of the fixed pipe 31, and a spiral pipe 32 is connected to the inside of the movable arc plate 34. The rotating mechanism 4 includes an I-shaped slide plate 41 and a second sliding plate 42. The side of the I-shaped slide plate 41 is connected to the side of the second sliding plate 42. The side of the I-shaped slide plate 41 is connected to a first sliding plate 411. The side of the first sliding plate 411 is connected to a T-shaped shaft 412. The side of the T-shaped shaft 412 is connected to the side of the support mechanism 1.

[0020] The support mechanism 1 includes a U-shaped load-bearing plate 101 and a support plate 106. The side of the U-shaped load-bearing plate 101 is provided with a moving groove 102. The top of the U-shaped load-bearing plate 101 is fixedly connected to a support rod 105. The bottom of the support rod 105 is fixedly connected to a U-shaped support frame 103. The bottom of the U-shaped support frame 103 is fixedly connected to a lifting ring 104. The inner side of the lifting ring 104 is connected to the side of the fixed pipe 31. The inner side of the U-shaped load-bearing plate 101 is fixedly connected to the side of the support plate 106.

[0021] The side of the support plate 106 is provided with an annular groove 107, the inner side of the annular groove 107 is connected to the side of the rotating mechanism 4, and the side of the support plate 106 is provided with a rotating groove 108, the inner side of the rotating groove 108 is connected to the side of the T-shaped shaft 412.

[0022] The frame mechanism 2 includes a first mold 201 and a second mold 202. The top of the first mold 201 is provided with a fixing groove 204, and the inner side of the fixing groove 204 is connected to the inner side of the fixing tube 31. The side of the first mold 201 is provided with a placement groove 207, and the inner side of the placement groove 207 is connected to a heating wire 205. The side of the second mold 202 is provided with an insertion groove 203, and the inner side of the insertion groove 203 is connected to the side of the rotating mechanism 4. The top of the second mold 202 is provided with an air outlet groove 208, and a magnet plate 206 is fixedly connected to the side of the second mold 202.

[0023] During the process of the I-shaped slide plate 41 driving the second sliding plate 42 to flip, since the first sliding plate 411 restricts the movement direction of the I-shaped slide plate 41, a moving groove 102 is opened on the side of the U-shaped load-bearing plate 101 so that the rotation of the I-shaped slide plate 41 on the plane of the supporting plate 106 is not restricted by the U-shaped load-bearing plate 101. Moreover, the inner side of the lifting ring 104 is connected to a fixing pipe 31, and another fixing pipe 31 exists at its other end to support the first mold 201 and the second mold 202. The heating wire 205, coiled inside the first mold 201 and the second mold 202, is spring-shaped, allowing for a uniform temperature distribution within it. The heating wire 205 is energized by opening and closing the magnetic plates 206. When closed, the push rod 322 is at one end of the spiral tube 32, converting electrical energy into heat energy in the heating wire 205, expelling internal gas through the vent groove 208. When the push rod 322 pushes the molten metal into the first mold 201, its sliding motion inside the spiral tube 32 distributes electrical energy from the heating wire 205 to the inner side of the spiral tube 32, reducing the heat of the heating wire 205 and thus cooling the molding temperature inside the second mold 202, without causing a sudden drop in temperature.

[0024] Reference Figures 4 to 6 The spiral tube 32 has a spiral groove 321 on its side, a push rod 322 connected to the inside of the spiral tube 32, a locking block 323 fixedly connected to the top of the spiral tube 32, a discharge pipe 324 fixedly connected to the top of the spiral tube 32, and the top of the discharge pipe 324 fixedly connected to the inside of the fixed groove 204. The spiral tube 32 has an inlet 325 on its side, a turning pipe 33 fixedly connected to the top of the fixed tube 31, and the side of the turning pipe 33 connected to the inside of the fixed groove 204. The moving arc plate 34 has an installation groove 341 on its top, and the inside of the installation groove 341 is fixedly connected to the side of the T-shaped sliding block 342.

[0025] The side of the T-shaped sliding block 342 is connected to the inside of the spiral groove 321. The inside of the steering tube 33 is provided with a first rotating groove 331, the inside of the first rotating groove 331 is connected to the side of the locking block 323, the top of the first rotating groove 331 is provided with a sliding groove 332, the inside of the sliding groove 332 is connected to the side of the locking block 323, and the top of the sliding groove 332 is provided with a second rotating groove 333.

[0026] There is a linkage between the bottom end of the push rod 322 and the side of the moving arc plate 34. When the push rod 322 slides inside the spiral tube 32, it also drives the moving arc plate 34 to slide inside the fixed tube 31. When the locking block 323 is in the first rotating groove 331 and the second rotating groove 333, the movement of the moving arc plate 34 causes the spiral tube 32 to rotate. When it is in the sliding groove 332, the moving arc plate 34 remains stationary. When the push rod 322 is pushed forward, the spiral tube 32 drives the locking block 323 into the sliding groove 332 by friction. When the push rod 322 is pushed again, it drives the locking block 323 to the second rotating groove 333 and rotates inside the second rotating groove 333. At this time, the discharge pipe 324 at the top of the spiral tube 32 is fixed to the inside of the fixed groove 204 and sends the molten metal inside it into the mold.

[0027] Reference Figures 7 to 8The bottom end of the second sliding plate 42 is fixedly connected to a fixing rod 421. The side of the fixing rod 421 is connected to the inner side of the insertion groove 203. The side of the I-shaped sliding plate 41 is fixedly connected to a connecting rod 434. The side of the connecting rod 434 is connected to the inner side of the annular sliding groove 107. The top end of the connecting rod 434 is fixedly connected to a connecting plate 43.

[0028] Among them, a baffle 432 is fixedly connected to the side of the linkage plate 43, a rotary motor 431 is fixedly connected to the top of the baffle 432, the side of the rotary motor 431 is fixedly connected to the side of the rotating groove 108, and the side of the linkage plate 43 is connected to the side of the support plate 106.

[0029] Driven by the linkage plate 43, the I-shaped slide plate 41 connected to the side of the linkage rod 434 is flipped. The movement of the linkage rod 434 follows the trajectory of the annular slide groove 107. The center of the arc of the annular slide groove 107 and the center of the rotary motor 431 are on the same horizontal plane. The I-shaped slide plate 41 drives the second sliding plate 42 to flip through the fixation of the T-shaped shaft 412 and the baffle 432.

[0030] The working principle of this invention is as follows: A U-shaped support frame 103 is fixed to the support rod 105 on the inner side of the U-shaped load-bearing plate 101. The inner side of the hanging ring 104 fixed at the bottom of the U-shaped support frame 103 is connected to a fixing tube 31. The top of the second mold 202 is fixedly connected to the inner side of the fixing tube 31. When the first mold 201 and the second mold 202 are attached, they are fixed by the magnet plates 206 at both ends. Therefore, when the first mold 201 and the second mold 202 need to be closed, the first mold 201 is moved to the side of the second mold 202 by the pusher. The side of the second mold 202 is fixed by the rotating mechanism 4 so that it will not be displaced by the push of the first mold 201 when it is attached. When the two are attached, the pusher and the rotating mechanism 4 are removed from the frame mechanism 2 without affecting the subsequent injection function of the pressurizing mechanism 3. An installation groove 207 is provided on the inner side of the first mold 201, and an electric heating wire 205 is fixed on the inner side of the groove. By controlling the temperature of the electric heating wire 205, the cooling effect of the molded object inside the first mold 201 is more reasonable. The fixing groove 204 provided at the top of the first mold 201 not only supports the second mold 202, but also allows molten metal to be poured into the internal groove from here.

[0031] When the first mold 201 and the second mold 202 are closed, the air inside is heated and expanded by the bonding action of the magnetic plate 206 and the heating effect of the heating wire 205, and is discharged from the air outlet 208. The pressurizing mechanism 3 pushes the molten metal into the inside of the first mold 201 so that it can better fill the corners and edges inside. As the push rod 322 slides inside the spiral tube 32, the heat emitted by the heating wire 205 decreases as it approaches the discharge pipe 324. The molten metal is poured into the hopper 311 and enters the inner side of the spiral tube 32 through the inlet 325. At the other end of the spiral tube 32, there is a push rod 322 to block it. After pouring in an appropriate amount of molten metal, it is quickly pushed into the gap between the first mold 201 and the second mold 202 by the push rod 322. When the push rod 322 moves inside the spiral tube 32, the spiral tube 32 will also move forward due to friction. A T-shaped sliding block 342 is placed inside the spiral groove 321 on the side of the spiral tube 32. The bottom end of the T-shaped sliding block 342 is fixed to the top end of the moving arc plate 34. The bottom end of the moving arc plate 34 slides inside the fixed tube 31. Therefore, when the push rod 322 moves, it drives the T-shaped sliding block 342 to rotate the spiral tube 32 due to its limiting effect. The bottom end of the push rod 322 is connected to the side of the moving arc plate 34 through a connecting rod. Therefore, the moving arc plate 34 moves with the push rod 322. Initially, the locking block 323 on the side of the spiral tube 32 is placed on the side of the first rotating groove 331. When the push rod 322 is moved by force, the locking block 323 on the side of the spiral tube 32 will enter the second rotating groove 333 through the sliding groove 332. When the locking block 323 is in the sliding groove 332, the T-shaped sliding block 342 moves inside the fixed tube 31 with the movement of the push rod 322. When the locking block 323 reaches the inside of the second rotating groove 333, the push rod 322 continues to push, causing the T-shaped sliding block 342 to slide on the side of the spiral groove 321, and the spiral tube 32 rotates accordingly. When the side of the discharge tube 324 contacts the inside of the first mold 201, it is fixed inside. Therefore, when the spiral tube 32 rotates, the discharge tube 324 drives the first mold 201 and the second mold 202 to rotate, so that the molten metal inside flows evenly to every gap. When the push rod 322 stops moving and holds pressure on its inside, the first mold 201 is also in a stationary state.

[0032] After the mold is formed inside the first mold 201, the rotary motor 431 is started to drive the connecting plate 43 to rotate, causing the I-shaped slide plate 41 on the side of the connecting rod 434 to rotate 90 degrees. The second sliding plate 42 is connected to the side of the I-shaped slide plate 41, which will also rotate. The fixing rod 421 fixed at the bottom of the second sliding plate 42 is flipped to the insertion slot 203 on the side of the second mold 202. The first mold 201 is removed after the second mold 201 is fixed by the fixing rod 421, and the cast model is taken out from it. The positioning effect of the first sliding plate 411 and the T-shaped shaft 412 at the other end of the I-shaped slide plate 41 prevents the second sliding plate 42 from sliding to the other end when it slides on the side of the I-shaped slide plate 41. When casting next time, the fixing rod 421 is removed from the insertion slot 203 to facilitate the rotation of the first mold 201 and the second mold 202.

[0033] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A die-casting mold for machining precision automotive parts, comprising a support mechanism (1), characterized in that: It also includes a frame mechanism (2), a pressurizing mechanism (3) and a rotating mechanism (4). The bottom end of the support mechanism (1) is connected to the side of the pressurizing mechanism (3), the top end of the frame mechanism (2) is connected to the side of the pressurizing mechanism (3), the inner side of the support mechanism (1) is fixedly connected to the side of the rotating mechanism (4), and the top end of the rotating mechanism (4) is fixedly connected to the inner side of the frame mechanism (2). The pressurizing mechanism (3) includes a fixed tube (31) and a spiral tube (32). A feed hopper (311) is fixedly connected to the side of the fixed tube (31), and a feed tube (312) is opened on the side of the fixed tube (31). A movable arc plate (34) is connected to the inside of the fixed tube (31), and a spiral tube (32) is connected to the inside of the movable arc plate (34). The rotating mechanism (4) includes an I-shaped slide plate (41) and a second sliding plate (42). The side of the I-shaped slide plate (41) is connected to the side of the second sliding plate (42). The side of the I-shaped slide plate (41) is connected to a first sliding plate (411). The side of the first sliding plate (411) is connected to a T-shaped shaft (412). The side of the T-shaped shaft (412) is connected to the side of the support mechanism (1).

2. The die-casting mold for machining precision automotive parts according to claim 1, characterized in that: The support mechanism (1) includes a U-shaped load-bearing plate (101) and a support plate (106). The side of the U-shaped load-bearing plate (101) is provided with a moving groove (102). The top of the U-shaped load-bearing plate (101) is fixedly connected to a support rod (105). The bottom of the support rod (105) is fixedly connected to a U-shaped support frame (103). The bottom of the U-shaped support frame (103) is fixedly connected to a lifting ring (104). The inner side of the lifting ring (104) is connected to the side of the fixed pipe (31). The inner side of the U-shaped load-bearing plate (101) is fixedly connected to the side of the support plate (106).

3. The die-casting mold for machining precision automotive parts according to claim 2, characterized in that: The side of the support plate (106) is provided with an annular groove (107), the inner side of the annular groove (107) is connected to the side of the rotating mechanism (4), and the side of the support plate (106) is provided with a rotating groove (108), the inner side of the rotating groove (108) is connected to the side of the T-shaped shaft (412).

4. The die-casting mold for machining precision automotive parts according to claim 1, characterized in that: The frame mechanism (2) includes a first mold (201) and a second mold (202). The top of the first mold (201) is provided with a fixing groove (204), and the inner side of the fixing groove (204) is connected to the inner side of the fixing tube (31). The side of the first mold (201) is provided with a placement groove (207), and the inner side of the placement groove (207) is connected with a heating wire (205). The side of the second mold (202) is provided with an insertion groove (203), and the inner side of the insertion groove (203) is connected to the side of the rotating mechanism (4). The top of the second mold (202) is provided with an air outlet groove (208), and a magnet plate (206) is fixedly connected to the side of the second mold (202).

5. The die-casting mold for machining precision automotive parts according to claim 1, characterized in that: The spiral tube (32) has a spiral groove (321) on its side. A push rod (322) is connected to the inner side of the spiral tube (32). A locking block (323) is fixedly connected to the top of the spiral tube (32). A discharge pipe (324) is fixedly connected to the top of the spiral tube (32). The top of the discharge pipe (324) is fixedly connected to the inner side of the fixed groove (204). An inlet (325) is opened on the side of the spiral tube (32). A turning pipe (33) is fixedly connected to the top of the fixed tube (31). The side of the turning pipe (33) is connected to the inner side of the fixed groove (204). An installation groove (341) is opened at the top of the movable arc plate (34). The inner side of the installation groove (341) is fixedly connected to the side of the T-shaped sliding block (342).

6. The die-casting mold for machining precision automotive parts according to claim 5, characterized in that: The side of the T-shaped sliding block (342) is connected to the inside of the spiral groove (321). The inside of the steering tube (33) is provided with a first rotating groove (331). The inside of the first rotating groove (331) is connected to the side of the locking block (323). The top of the first rotating groove (331) is provided with a sliding groove (332). The inside of the sliding groove (332) is connected to the side of the locking block (323). The top of the sliding groove (332) is provided with a second rotating groove (333).

7. The die-casting mold for machining precision automotive parts according to claim 1, characterized in that: The bottom end of the second sliding plate (42) is fixedly connected to a fixing rod (421), the side of the fixing rod (421) is connected to the inner side of the insertion groove (203), the side of the I-shaped sliding plate (41) is fixedly connected to a connecting rod (434), the side of the connecting rod (434) is connected to the inner side of the annular sliding groove (107), and the top end of the connecting rod (434) is fixedly connected to a connecting plate (43).

8. A die-casting mold for machining precision automotive parts according to claim 7, characterized in that: A baffle (432) is fixedly connected to the side of the linkage plate (43), and a rotary motor (431) is fixedly connected to the top of the baffle (432). The side of the rotary motor (431) is fixedly connected to the side of the rotating groove (108), and the side of the linkage plate (43) is connected to the side of the support plate (106).

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