Full-automatic forming die-casting machine for aluminum alloy end cover of automobile oil pump

Abstract

The invention belongs to the technical field of die-casting machines, and particularly discloses a full-automatic forming die-casting machine for an aluminum alloy end cover of an automobile oil pump, which comprises a workbench, a fixed seat is arranged on the upper surface of one end of the workbench, and the front end of the fixed seat is jointly connected with a static die through a plurality of arranged guide columns; a movable mold is arranged on the upper surface of the end, away from the static mold, of the workbench, the front end of the movable mold is connected with a forming mold through an arranged sliding mechanism, a sliding frame is arranged above the forming mold, the interior of the sliding frame is connected with a rail frame through an arranged reciprocating mechanism, and the interior of the rail frame is connected with a sliding base through an arranged telescopic mechanism. A fixing rod is connected to the interior of the sliding base through a fixedly-installed multi-section hydraulic cylinder, a connecting column penetrates through one end of the interior of the fixing rod, U-shaped frames are arranged at the two ends of the connecting column correspondingly, and rotating shafts are rotatably installed in the U-shaped frames. According to the vibration demolding device, by designing a vibration demolding structure, the core problem of demolding deformation is greatly solved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of die casting machines, and specifically discloses a full-automatic forming die casting machine for an aluminum alloy end cover of an automobile oil pump. BACKGROUND

[0002] The current manufacturing method of the aluminum alloy motor end cover is manufactured by the die casting process. The die casting is a common metal processing method, which is suitable for producing parts with complex shapes and high precision requirements. In the die casting process, the aluminum alloy is injected into a special mold after melting, and then the molten metal is forced to fill the cavity of the mold under high pressure, and the formed part is taken out after cooling and solidification. This method can quickly and efficiently produce aluminum alloy motor ends and ensure that they have the required strength and accurate size; From the above content, it can be seen that the end cover still has the following shortcomings in the die casting process: in the die casting demolding process of the aluminum alloy end cover, the traditional demolding method is prone to cause deformation of the end cover due to uneven demolding force, too fast demolding speed and other reasons; Therefore, the full-automatic forming die casting machine for the aluminum alloy end cover of the automobile oil pump is proposed to solve the above problems. SUMMARY

[0003] The application aims to solve the problems in the background art and provides a full-automatic forming die casting machine for an aluminum alloy end cover of an automobile oil pump, which comprises a workbench, a fixed seat is arranged on the upper surface of one end of the workbench, a static mold is connected to the front end of the fixed seat through a plurality of guide columns arranged thereon, a dynamic mold is arranged on the upper surface of the end of the workbench away from the static mold, a forming mold is connected to the front end of the dynamic mold through a sliding mechanism arranged thereon, a sliding frame is arranged above the forming mold, a rail frame is connected to the inside of the sliding frame through a reciprocating mechanism arranged thereon, a sliding seat is connected to the inside of the rail frame through a telescopic mechanism arranged thereon, a fixed rod is connected to the inside of the sliding seat through a plurality of hydraulic cylinders fixedly installed therein, a connecting column is arranged through the inside of one end of the fixed rod, U-shaped frames are arranged at both ends of the connecting column, a rotating shaft is rotatably installed in the inside of the U-shaped frame, a rotating rod is rotatably sleeved on the outside of the upper part of the rotating shaft, an installation rod is arranged at one end of the rotating rod, a plurality of vibration balls are arranged on the outside of the installation rod, a rotary meshing assembly is arranged on one side of the inside of the U-shaped frame, and an elastic reset piece is arranged on the outside of one end of the rotating rod.

[0004] In the above technical solution, further, the sliding mechanism comprises a plurality of first hydraulic cylinders arranged on the outside of the front end of the dynamic mold, and the telescopic ends of the plurality of first hydraulic cylinders are connected to the outside of the forming mold.

[0005] Further, the reciprocating mechanism comprises a screw rod rotatably installed in the slide frame, a sliding column is sleeved on the screw rod, one end of the screw rod penetrates through the outer side of the slide frame and is connected with a first motor, the first motor is fixedly connected with the slide frame, and the rail frame is transversely installed above the sliding column.

[0006] Further, the telescopic mechanism comprises a second hydraulic cylinder fixedly arranged in the inner side of one end of the rail frame, one side of the second hydraulic cylinder is connected with the sliding base, the telescopic end of the plurality of hydraulic cylinders is provided with a plug barrel, a connecting rod is threadedly connected in the plug barrel, a clamping barrel is installed at the lower end of the connecting rod, and the fixing rod is sleeved on the outer side of the clamping barrel.

[0007] Further, the rotating engagement assembly comprises a second motor fixedly installed on one side in the inner side of the U-shaped frame, a sector gear is arranged on the outer side of the output end of the second motor, a gear is arranged on the outer side of the rotating shaft corresponding to the outer side of the sector gear, a supporting plate is installed in the inner side of the U-shaped frame, and one end of the rotating shaft penetrates through the inner side of the supporting plate and is rotatably connected with the supporting plate.

[0008] Further, one side in the upper side of the inner side of the U-shaped frame is provided with a hollow structure, a clamp is sleeved on one side in the inner side of the U-shaped frame, a tension spring is arranged at one end of the clamp, and one end of the tension spring away from the clamp is connected with the outer side of the rotating rod.

[0009] Further, a bidirectional telescopic rod is installed in the inner side of the fixing rod, mounting blocks are fixedly connected at both ends of the bidirectional telescopic rod, abutting columns are fixedly installed on the outer surfaces of one side of the mounting blocks, movable joints are arranged at the ends of the abutting columns away from the mounting blocks, and flexible abutting blocks are arranged on the outer sides of the movable joints.

[0010] Further, positioning rods are arranged at the corners of the front end of the forming die, positioning grooves are arranged in the inner side of the static die corresponding to the positioning rods, a pouring pipe is installed in the inner side of the static die and is connected with a pouring feed pipe, the pouring feed pipe is installed in the inner side of the pouring pipe and is located at the rear end, a sealing pipe is installed in the inner side of the forming die and is connected with the pouring pipe, a sealing barrel is slidably and sealingly connected at one end of the pouring pipe, a third hydraulic cylinder is arranged at one end of the outer side of the sealing barrel, and the third hydraulic cylinder is fixedly arranged above the workbench through a sleeved assembly seat.

[0011] Further, support frames are installed on both sides of the bottom of the slide frame, and the support frames are slidingly connected with the outer edges of the workbench.

[0012] Compared with the prior art, the present application has the following beneficial effects: 1. By setting the vibrating ball, the rotating meshing assembly and the elastic reset piece, high-frequency micro-vibration can be carried out on the inner wall of the end cover during demolding, local adhesion of aluminum alloy and the mold is eliminated, demolding resistance is reduced, and end cover deformation caused by uneven demolding force is avoided.

[0013] 2. By the combined design of the bidirectional telescopic rod, the flexible abutment and the movable joint, multi-point flexible ejection demolding is realized, the ejection force distribution is self-adaptively adjusted according to the end cover structure, local stress concentration is prevented, the demolding process is ensured to be stable, and the forming mold is taken out after demolding through the reciprocating mechanism.

[0014] 3. By the linkage control of the sealing cylinder and the third hydraulic cylinder, the pouring pipe is quickly closed after pouring, the residual material backflow is avoided, the oxidation slag entering the mold cavity is reduced, and the surface quality of the end cover finished product is improved. DETAILED DESCRIPTION

[0015] Figure 1 is a schematic diagram of the overall structure of the present application; Figure 2 is another angle schematic diagram of the overall connection structure of the present application; Figure 3 is a schematic diagram of the overall structure of the present application Figure 1 is an enlarged structure schematic diagram of A in the present application; Figure 4 is a schematic diagram of the telescopic mechanism connection structure of the present application; Figure 5 is a schematic diagram of the connection structure between the clamping cylinder, the fixed rod, the insertion cylinder and the multi-joint hydraulic cylinder of the present application; Figure 6 is a schematic diagram of the connection structure between the fixed rod, the vibrating ball and the rotating meshing assembly of the present application; Figure 7 is another angle connection schematic diagram between the fixed rod, the vibrating ball and the rotating meshing assembly of the present application; Figure 8 is a schematic diagram of the connection structure between the U-shaped frame and the rotating meshing assembly of the present application; Figure 9 is a schematic diagram of the split connection structure between the inner mold cavity of the forming mold and the cast end cover of the present application; Figure 10 is a schematic diagram of the split structure between the static mold and the pouring pipe of the present application.

[0016] In the figure: 1, workbench; 2, movable die; 3, fixed seat; 4, guide column; 5, static die; 6, first hydraulic cylinder; 7, support frame; 8, pouring feed pipe; 9, first motor; 10, rail frame; 11, slide column; 12, second hydraulic cylinder; 13, slide; 14, forming die; 15, pouring pipe; 16, slide frame; 17, multi-section hydraulic cylinder; 18, sealing pipe; 19, screw rod; 20, plug-in cylinder; 21, connecting rod; 22, clamping cylinder; 23, fixed rod; 24, abutment column; 25, movable section; 26, connecting column; 27, tension spring; 28, U-shaped frame; 29, support plate; 30, mounting rod; 31, gear; 32, second motor; 33, rotating shaft; 34, two-way telescopic rod; 35, flexible abutment block; 36, vibrating ball; 37, mounting block; 38, sector gear; 39, rotating rod; 40, clamp; 41, positioning rod; 42, sealing cylinder; 43, third hydraulic cylinder; 44, assembly seat. DETAILED DESCRIPTION

[0017] In order to enable the above-mentioned objects, features and advantages of the present application to be more clearly understood and to be implemented, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0018] In the following description, a large number of specific details are set forth in order to facilitate a thorough understanding of the present application, but the present application can also be implemented in other ways different from those described herein, and therefore the present application is not limited to the specific embodiments disclosed below.

[0019] As Figures 1-10 shown in a kind of automobile oil pump aluminum alloy end cover full-automatic forming die casting machine, including workbench 1, the upper surface of one end of workbench 1 is provided with fixed seat 3, the front end of fixed seat 3 is respectively connected with static die 5 by setting multiple guide columns 4, the upper surface of the end of workbench 1 away from static die 5 is provided with movable die 2, the front end of movable die 2 is connected with forming die 14 by setting sliding mechanism, forming die 14 upper is provided with slide frame 16, slide frame 16 bottom both sides are all installed with support frame 7, support frame 7 is slidably connected with the outer edge of workbench 1, the inside of slide frame 16 is connected with rail frame 10 by setting reciprocating mechanism, the inside of rail frame 10 is connected with slide 13 by setting telescopic mechanism, the inside of slide 13 is connected with fixed rod 23 by fixedly installed multiple-section hydraulic cylinder 17, the inside one end of fixed rod 23 is penetrated with connecting column 26, the both ends of connecting column 26 are provided with U-shaped frame 28, rotating shaft 33 is rotatably installed in the inside of U-shaped frame 28, rotating rod 39 is rotatably sleeved on the outside upper of rotating shaft 33, mounting rod 30 is provided at one end of rotating rod 39, a plurality of vibrating balls 36 are provided on the outside of mounting rod 30, rotating engagement assembly is provided at one side in the inside of U-shaped frame 28, elastic reset piece is provided at the outside one end of rotating rod 39, positioning rod 41 is provided at each corner of the front end of forming die 14, positioning groove is formed at the inside of static die 5 corresponding to positioning rod 41.

[0020] As shown in the description Figure 1 , Figure 2 and Figure 9 , the front end of the movable mold 2 can promote the closing of the forming mold 14 and the stationary mold 5 through the sliding mechanism, and under the accurate guidance of the positioning rod 41 and the positioning groove, the accuracy of the closing is improved; , and the forming mold 14 is slidably connected with the slide rail above the workbench 1 during movement, and the accuracy is high during sliding.

[0021] When the forming mold 14 moves, the support frame 7 and the sliding frame 16 move synchronously, which meets the requirement of the later vibration ball 36 extending into one side of the forming mold 14 to complete the vibration demolding operation.

[0022] The sliding mechanism includes a plurality of first hydraulic cylinders 6 arranged outside the front end of the movable mold 2, and the telescopic ends of the plurality of first hydraulic cylinders 6 are connected with the outside of the forming mold 14.

[0023] As shown in the description Figure 1 and Figure 2 , the plurality of first hydraulic cylinders 6 can drive the forming mold 14 to move to one side of the stationary mold 5, thereby completing the closing action.

[0024] The pouring pipe 15 is installed in the lower part of the inside of the stationary mold 5, the pouring feeding pipe 8 is installed in the upper part of the inside of the pouring pipe 15 at the rear end, the sealing pipe 18 is installed in the inside of the forming mold 14 corresponding to the position of the pouring pipe 15, the sealing cylinder 42 is slidably connected at one end of the inside of the pouring pipe 15, the third hydraulic cylinder 43 is arranged outside one end of the sealing cylinder 42, and the third hydraulic cylinder 43 is fixed on the upper part of the workbench 1 through the sleeving assembly seat 44.

[0025] As shown in the description Figure 10 , the molten aluminum alloy is injected from the pouring feeding pipe 8 into the pouring pipe 15, after filling the mold cavity, the third hydraulic cylinder 43 pushes the sealing cylinder 42 to close the pouring pipe 15, preventing backflow, and after forming, the first hydraulic cylinder 6 drives the forming mold 14 to retreat and open the mold.

[0026] The reciprocating mechanism includes a lead screw 19 rotatably installed in the inside of the sliding frame 16, the sliding column 11 is threadedly sleeved on the outside of the lead screw 19, the first motor 9 is connected at one end of the lead screw 19 and penetrates through the outside of the sliding frame 16, the first motor 9 is fixedly connected with the sliding frame 16, and the rail frame 10 is transversely installed above the sliding column 11.

[0027] As shown in the description Figure 4 , after the first motor 9 is started, the lead screw 19 is driven to rotate, the sliding column 11 is driven to move transversely in the inside of the sliding frame 16, so that the rail frame 10, the sliding seat 13, the plurality of hydraulic cylinders 17 and the connecting rod 21 assembly can be transversely adjusted, which is convenient for later clamping the formed end cover.

[0028] The telescopic mechanism comprises a second hydraulic cylinder 12 fixedly arranged inside one end of the rail frame 10, the telescopic end of the second hydraulic cylinder 12 is connected with one side of the sliding seat 13, the telescopic end of the multi-section hydraulic cylinder 17 is provided with a plug barrel 20, the inside of the plug barrel 20 is threadedly connected with a connecting rod 21, the lower end of the connecting rod 21 is provided with a clamping barrel 22, and a fixing rod 23 is sleeved outside the clamping barrel 22. As shown in the accompanying drawings of the specification Figure 4 and Figure 5 The second hydraulic cylinder 12 drives the sliding seat 13 to move inside the rail frame 10, so that the positions of the multi-section hydraulic cylinder 17 and the fixing rod 23 can be adjusted, so that the plug barrel 20, the connecting rod 21, the clamping barrel 22 and the fixing rod 23 can be inserted into the front end of the forming die 14, and the plug barrel 20 and the connecting rod 21 are threadedly connected, and can be reasonably disassembled according to actual needs, facilitating replacement and maintenance.

[0029] The inside of the fixing rod 23 is provided with a two-way telescopic rod 34, both ends of the two-way telescopic rod 34 are fixedly connected with mounting blocks 37, the outer surfaces of one side of the mounting blocks 37 are fixedly provided with abutting columns 24, and the ends, away from the mounting blocks 37, of the abutting columns 24 are provided with movable joints 25, and the outer sides of the movable joints 25 are provided with flexible abutting blocks 35. The two-way telescopic rod 34 is synchronously stretched, the mounting blocks 37 on both sides are pushed outwards, until the flexible abutting blocks 35 (rubber, silica gel material) abut against the upper and lower end faces of the forming end cover, and the movable joints 25 are adaptively movable according to the abutting angle of the flexible abutting blocks 35, and the purpose is to prevent the forming end cover from being disengaged and positioned before vibration (after the subsequent vibration is completed and the adhesion is eliminated, the two-way telescopic rod 34 is driven to be contracted again, so that the forming end cover is clamped and taken out from the inner wall of the forming die 14).

[0030] The rotating engagement assembly comprises a second motor 32 fixedly installed on one side inside the U-shaped frame 28, a sector gear 38 is arranged outside the output end of the second motor 32, a gear 31 is arranged outside the outer side of the sector gear 38 and corresponds to the outer side of the sector gear 38, a support plate 29 is installed inside the U-shaped frame 28, one end of a rotating shaft 33 penetrates through the inside of the support plate 29 and is rotatably connected with the support plate 29, one side of the upper part inside the U-shaped frame 28 is provided in a hollow manner, a clamping hoop 40 is sleeved on one side inside the U-shaped frame 28, one end of the clamping hoop 40 is provided with a tension spring 27, and the end, away from the clamping hoop 40, of the tension spring 27 is connected with the outer side of a rotating rod 39.

[0031] As shown in the accompanying drawings of the specification Figure 3 、 Figure 6 、 Figure 7 、 Figure 8 The second motor 32 drives the sector gear 38 and the gear 31 to engage, drives the rotating shaft 33 to rotate, makes the vibration ball 36 generate a knocking frequency of 20-30 Hz, and it needs to be specially pointed out that the knocking frequency is different for different thicknesses of the end cover. For thin-walled parts ≤2mm, the frequency is 30Hz, and the knocking force is 3-5N. For thick-walled parts >2mm, the frequency is 20Hz, and the knocking force is 5-8N. When the sector gear 38 is engaged with the gear 31, the rotating rod 39 is driven to swing around the rotating shaft 33, causing the plurality of vibration balls 36 to move away from the forming end cover. When the sector gear 38 is disengaged, the restoring torque of the rotating rod 39 is provided under the stretching of the tension spring 27, ensuring that the rotating rod 39 is quickly restored in a short time after knocking, and the amplitude of the vibration ball 36 knocks the outer edge of the forming end cover, thereby eliminating the internal adhesion of the forming end cover and the mold cavity, and reducing the demolding resistance.

[0032] In summary, the device solves the deformation problem of the existing mechanical rigid fixation by first vibrating to eliminate adhesion (high-frequency micro-vibration breaks the interfacial bonding force and reduces the mechanical ejection load), and then flexibly ejecting the forming end cover (self-adapting curved surface contact avoids stress concentration and protects the integrity of the thin-walled structure), ensuring the yield rate while shortening the demolding time and greatly improving the production efficiency.

[0033] Working principle: The plurality of first hydraulic cylinders 6 at the front end of the moving mold 2 push the forming mold 14 to move towards one end of the stationary mold 5, the positioning rod 41 is inserted into the positioning groove inside the stationary mold 5 to complete precise mold closing, the molten aluminum alloy is injected from the pouring inlet pipe 8 into the pouring pipe 15, after filling the mold cavity, the third hydraulic cylinder 43 pushes the sealing cylinder 42 to close the pouring pipe 15 to prevent backflow, after forming, the first hydraulic cylinder 6 drives the forming mold 14 to retreat to open the mold; The mold inside the mold cavity is clamped inside the forming mold 14, after completion, the first motor 9 drives the screw rod 19 to rotate, driving the slide column 11 and the rail frame 10 to move to the top of the forming end cover, the second hydraulic cylinder 12 pushes the sliding seat 13 to move towards the front end of the forming mold 14, the plurality of hydraulic cylinders 17 push the fixed rod 23 downwards, the bidirectional telescopic rod 34 is synchronously extended, driving the two flexible abutting blocks 35 to contact the upper and lower end edges of the end cover, the flexible abutting blocks 35 self-adapt to the curved surface of the end cover through the movable joint 25, clamping the forming end cover from the upper and lower sides, at this time, the second motor 32 drives the sector gear 38 to engage with the gear 31 outside, causing the tension spring 27 to expand towards one end outside, the rotating rod 39, the mounting rod 30, and the plurality of vibration balls 36 are located outside the forming end cover (the purpose is to allow the plurality of vibration balls 36 to expand, and to reduce friction with the forming end cover when the fixed rod 23 slides downwards); When the plurality of vibration balls 36 are located at the outer edge of the forming end cover, the second motor 32 intermittently engages the sector gear 38 with the gear 31 through rotation, causing the vibration balls 36 to contact the outer edge of the forming end cover, when the sector gear 38 moves away from the gear 31, the rotating rod 39 swings at a high frequency under the intermittent driving of the sector gear 38 and the restoring action of the tension spring 27, the vibration balls 36 knock the outer edge of the end cover, eliminating the adhesion between the forming end cover and the inside of the forming mold 14, to facilitate the removal of the forming end cover later; When the shaped end cover is removed from the adhesion, the bidirectional telescopic rod 34 promotes the secondary contraction of the flexible stopper 35, causing the flexible stopper 35 to tightly clamp the shaped end cover, and then under the drive of the second hydraulic cylinder 12, the shaped end cover is taken out from the inside of the forming mold 14 and transported to one side through the reciprocating assembly, and the worker can automatically complete the mold taking operation by taking the shaped end cover, which can greatly reduce the damage and deformation of the shaped end cover.

[0034] The basic principles, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only the farthest from the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. A full-automatic forming die-casting machine for automobile oil pump aluminum alloy end cover, comprising a workbench (1), characterized in that: The workbench (1) one end upper surface is provided with fixed seat (3), the fixed seat (3) front end is connected with static mode (5) through the setting multiple guide posts (4) jointly, the workbench (1) is away from static mode (5) one end upper surface and is provided with dynamic mode (2), the dynamic mode (2) front end is connected with forming die (14) through the setting sliding mechanism, the forming die (14) upper portion is provided with slide (16), the slide (16) is connected with rail frame (10) through the setting reciprocating mechanism inside, the rail frame (10) is connected with slide (13) through the setting telescopic mechanism inside, the slide (13) is connected with fixed rod (23) through multiple hydraulic cylinders (17) fixed installation inside, the fixed rod (23) inside one end is penetrated with connecting column (26), the connecting column (26) both ends are provided with U-shaped frame (28), the U-shaped frame (28) is rotatably installed with pivot (33) inside, the pivot (33) outside upper portion rotatably sleeve is equipped with rotating rod (39), the rotating rod (39) one end is provided with mounting rod (30), the mounting rod (30) outside is provided with multiple vibration ball (36), the U-shaped frame (28) inside one side is provided with rotary engagement assembly, the rotating rod (39) one end outside is provided with elastic reset piece.

2. The full-automatic forming die-casting machine for the aluminum alloy end cover of an automobile oil pump according to claim 1, characterized in that: The sliding mechanism includes a plurality of first hydraulic cylinders (6) provided on the outside of the front end of the dynamic mode (2), and the telescopic ends of the plurality of first hydraulic cylinders (6) are connected with the outside of the forming die (14).

3. The full-automatic forming die-casting machine for the aluminum alloy end cover of an automobile oil pump according to claim 1, characterized in that: The reciprocating mechanism includes a lead screw (19) rotatably installed inside the slide (16), a slide column (11) is threadedly sleeved on the outside of the lead screw (19), and a first motor (9) is connected to the end of the lead screw (19) penetrating through the outside of the slide (16). The first motor (9) is fixedly connected between the slide (16), and the rail frame (10) is transversely installed above the slide column (11).

4. The full-automatic forming die-casting machine for automobile oil pump aluminum alloy end cover of claim 1, characterized in that: The telescopic mechanism includes a second hydraulic cylinder (12) fixedly arranged inside one end of the rail frame (10), and the telescopic end of the second hydraulic cylinder (12) is connected with one side of the slide (13). The telescopic end of the plurality of hydraulic cylinders (17) is provided with a plug cylinder (20), the plug cylinder (20) is threadedly connected with a connecting rod (21) inside, the connecting rod (21) is installed with a clamping cylinder (22) at the lower end, and the fixed rod (23) is sleeved on the outside of the clamping cylinder (22).

5. The full-automatic forming die-casting machine for automobile oil pump aluminum alloy end cover of claim 1, characterized in that: The rotary engagement assembly includes a second motor (32) fixedly installed on one side inside the U-shaped frame (28), a sector gear (38) is arranged on the outside of the output end of the second motor (32), a gear (31) is arranged on the outside of the second motor (32) corresponding to the sector gear (38), a supporting plate (29) is installed in the U-shaped frame (28), and the pivot (33) penetrates through the inside of the supporting plate (29) and is rotatably connected with the supporting plate (29) at one end.

6. The full-automatic forming die-casting machine for automobile oil pump aluminum alloy end cover of claim 1, characterized in that: The U-shaped frame (28) is hollow on the upper side, a clamping hoop (40) is sleeved on one side of the U-shaped frame (28), a tension spring (27) is arranged at one end of the clamping hoop (40), and the end, away from the clamping hoop (40), of the tension spring (27) is connected with the outer side of a rotating rod (39).

7. The full-automatic forming die-casting machine for automobile oil pump aluminum alloy end cover of claim 1, characterized in that: The middle of the fixed rod (23) is penetrated and installed with a two-way telescopic rod (34), the two ends of the two-way telescopic rod (34) are fixedly connected with mounting blocks (37), the outer surfaces of the mounting blocks (37) are fixedly installed with abutting columns (24) on one side, the end, away from the mounting blocks (37), of the abutting columns (24) is provided with movable joints (25), and the outer side of the movable joints (25) is provided with flexible abutting blocks (35).

8. The full-automatic forming die-casting machine for automobile oil pump aluminum alloy end cover of claim 1, characterized in that: The front end of the forming die (14) is provided with positioning rods (41) at each corner, the inner side of the static die (5) is provided with positioning grooves corresponding to the positioning rods (41), the inner side of the static die (5) is communicated and installed with a pouring pipe (15) at the lower side, the inner side of the pouring pipe (15) is communicated and installed with a pouring feeding pipe (8) at the upper side and rear end, the inner side of the forming die (14) is communicated and installed with a sealing pipe (18) at the position corresponding to the pouring pipe (15), the inner side of the pouring pipe (15) is slidingly and sealingly connected with a sealing cylinder (42) at one end, the outer side of the one end of the sealing cylinder (42) is provided with a third hydraulic cylinder (43), and the outer side of the third hydraulic cylinder (43) is fixed on the upper side of the workbench (1) through a sleeved assembly seat (44).

9. The full-automatic forming die-casting machine for automobile oil pump aluminum alloy end cover of claim 1, characterized in that: The bottom of the sliding frame (16) is installed with support frames (7) on the two sides, and the support frames (7) are slidingly connected with the outer edges of the workbench (1).

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