Oil pan die-casting die

Abstract

The utility model relates to the technical field of die-casting dies, in particular to an oil pan die-casting die which comprises a die frame, a die body is movably installed in the middle of the die frame, a machine frame is fixedly installed in the middle of the die frame, and a die-casting mechanism is arranged between the die body and the machine frame. A concentric-square-shaped water tank is fixedly installed in the middle of the bottom end of the mold frame, and a heat dissipation mechanism is arranged between the mold body and the concentric-square-shaped water tank. The lifting mechanism drives the die body to descend, so that the heat dissipation frame is in direct contact with the ground to achieve stable fixation, die micro-displacement in the high-pressure casting process is effectively prevented, the casting precision is ensured, two motors are adopted for synchronous driving, gears and racks on the two sides are synchronously lifted through the controller, and it is ensured that the heights of the four corners of the die body are consistent; the problem that it is difficult to guarantee levelness through manual adjustment is thoroughly solved, and the inclination risk of the mold table is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to die casting die technical field, concretely is a kind of oil pan die casting die. BACKGROUND

[0002] Die casting die is a kind of method of casting liquid die forging, a kind of process completed on special die casting die forging machine.Its basic process is: metal liquid is first low-speed or high-speed casting filling into the cavity of die, die has movable cavity face, it is press forged along with the cooling process of metal liquid.

[0003] As the engine oil pan die casting die disclosed in the authorization announcement No.CN213968957U, it includes fixed plate, threaded hole is equipped with threaded rod, threaded rod bottom is equipped with rubber pad, threaded rod top is equipped with twist handle, fixed plate lower surface is close to four corners It is also equipped with universal wheel, die table upper surface center position is equipped with casting die groove, die table front end surface is close to bottom position and is embedded with liquid outlet pipe, die table front end surface is close to top position and is embedded with liquid inlet pipe.After adopting the above technical scheme, the utility model has the beneficial effects that: it is convenient to move flexibly as a whole, cooperate with threaded rod, it is convenient to fix the position of the whole device under the cooperation of rubber pad and twist handle, it is convenient to fill condensate into the interior under the cooperation of liquid outlet pipe and liquid inlet pipe, and shorten condensation time.

[0004] Although the above-mentioned patent is convenient to move flexibly as a whole, the rubber pad at the bottom of the threaded rod may be worn due to long-term friction with the ground, affecting the fixing effect, especially in the high-pressure casting process, which may cause the die to move slightly, and the height is adjusted by manually rotating the twist handle, it is difficult to ensure that the four corners are completely horizontal, which may cause the die table to tilt, affecting the precision of the casting. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of oil pan die casting die to solve the problems raised in the above background.

[0006] To achieve the above object, the utility model provides the following technical scheme:

[0007] A kind of oil pan die casting die, comprising

[0008] Die holder, movable mounting is carried out in the middle part of the die holder, machine frame is fixedly installed in the middle part of the die holder, and pressure casting mechanism is arranged between the die body and the machine frame;

[0009] Back-shaped water tank is fixedly installed in the middle part of the bottom end of the die holder, and heat dissipation mechanism is arranged between the die body and the back-shaped water tank;

[0010] Vertical rack is fixedly installed in the both side outer walls of the die body, and lifting mechanism is arranged between the die holder and the rack.

[0011] Preferably, the die-casting mechanism comprises a hydraulic cylinder, a vertical hydraulic cylinder is fixedly installed in the middle of the top end of the frame, a horizontal pressing plate is fixedly installed at the output shaft end of the hydraulic cylinder, a mold cover is integrally formed at the middle lower end surface of the pressing plate, a casting groove is formed in the mold body, a stepped groove is formed between the upper end of the casting groove and the inner wall of the mold body, and the pressing plate is matched with the stepped groove;

[0012] Preferably, a liquid inlet pipe is fixedly installed at the front upper end of the mold body;

[0013] Preferably, the heat dissipation mechanism comprises a bottom plate, a horizontal bottom plate is fixedly installed at the inner wall surface of the bottom end of the back-shaped water tank, a heat dissipation frame is fixedly installed at the middle of the bottom end of the mold body, the bottom end of the heat dissipation frame is movably penetrated through the bottom plate and the mold frame, so that the heat dissipation frame can move up and down relative to the bottom plate, water pipes are fixedly installed at both ends of the back-shaped water tank, and connectors are fixedly installed at the outer side of one end of the water pipes and penetrated through the mold frame;

[0014] Preferably, the lifting mechanism comprises a shaft frame, a pair of shaft frames are fixedly installed at the upper end of the mold frame and close to both sides of the mold body, a transmission shaft is movably installed between the two shaft frames through a bearing, a gear meshing with a rack is fixedly installed at the middle of the transmission shaft, an electric motor is fixedly installed at the outer side of the front shaft frame, and the output shaft of the electric motor is fixedly connected with the transmission shaft;

[0015] Preferably, moving wheels are fixedly installed at the bottom end of the mold frame.

[0016] Compared with the prior art, the machine oil pan die-casting mold has the advantages that:

[0017] 1. The machine oil pan die-casting mold is characterized in that the mold body is lowered by the lifting mechanism, the heat dissipation frame directly contacts the ground to realize stable fixation, the mold micro-displacement in the high-pressure casting process is effectively prevented, the casting precision is ensured, two electric motors are synchronously driven, the synchronous lifting of the gears and the racks on both sides is realized through a controller, the height consistency of the four corners of the mold body is ensured, the problem that manual adjustment is difficult to ensure the level is completely solved, and the risk of inclination of the mold table is avoided.

[0018] 2. The machine oil pan die-casting mold is characterized in that the mold body and the back-shaped water tank directly contact and conduct heat dissipation, and the heat dissipation frame conducts heat dissipation through the ground, so that the heat dissipation efficiency is significantly improved, the circulating cooling liquid of the back-shaped water tank realizes continuous active heat dissipation, the heat dissipation frame assists heat dissipation by large-area contact with the ground, and the mold temperature is stabilized through the synergistic effect of the two. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a whole front view structural schematic diagram of the utility model.

[0020] Figure 2 It is the cross section schematic view of the back type water tank of the utility model;

[0021] Figure 3 It is the back type water tank of the utility model Figure 1 The enlarged schematic view of A place in the middle;

[0022] Figure 4 It is the back type water tank of the utility model Figure 2 The enlarged schematic view of B place in the middle.

[0023] In the figure: 1, mould frame; 2, mould body; 3, frame; 4, back type water tank; 5, rack; 6, hydraulic cylinder; 7, pressing plate; 8, mould cover; 9, casting groove; 10, stepped groove; 11, liquid inlet pipe; 12, bottom plate; 13, heat dissipation frame; 14, water pipe; 15, joint; 16, shaft frame; 17, transmission shaft; 18, motor; 19, gear; 20, moving wheel. DETAILED DESCRIPTION

[0024] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without creative labor belong to the protection scope of the utility model.

[0025] As Figures 1-4 shown, a technical scheme provided by the utility model:

[0026] The utility model provides an oil pan die casting die, including mould frame 1, mobile wheel 20 is fixedly installed in the bottom end four corners of mould frame 1, mould body 2 is movably installed in the middle part of mould frame 1, rack 3 is fixedly installed in the middle part of mould frame 1, and the die casting mechanism is arranged between mould body 2 and rack 3, and the die casting mechanism includes hydraulic cylinder 6, the output shaft end of hydraulic cylinder 6 is fixedly installed with horizontal pressing plate 7, mould cover 8 is integrally formed in the middle lower end surface of pressing plate 7, casting die groove 9 is formed in the inside of mould body 2, and the upper end of casting die groove 9 is formed with the stepped groove 10 between the inner wall of mould body 2, and pressing plate 7 is matched with stepped groove 10, liquid inlet pipe 11 is fixedly installed on the front upper end of mould body 2, rack 5 is fixedly installed on the both sides of mould body 2, and the both sides of mould frame 1 are formed with strip-shaped groove slidably connected with rack 5, and the lifting mechanism is arranged between mould frame 1 and rack 5, and the lifting mechanism includes shaft frame 16, a pair of shaft frames 16 are fixedly installed on the upper end of mould frame 1 and close to the both sides of mould body 2, transmission shaft 17 is movably installed between the two shaft frames 16 through bearing, the middle part of transmission shaft 17 is fixedly installed with gear 19 engaged with rack 5, motor 18 is fixedly installed on the outside of front shaft frame 16, and the output shaft of motor 18 is fixedly connected with transmission shaft 17;

[0027] In the embodiment, the die body 2 is lowered by the lifting mechanism, the heat dissipation frame 13 directly contacts the ground to realize stable fixing, effectively prevents the die micro-displacement in the high-pressure casting process, ensures the casting precision, two motors 18 are synchronously driven, the synchronous lifting of the gears 19 and the racks 5 on the two sides is realized through the controller, the height consistency of the four corners of the die body 2 is ensured, the problem that the manual adjustment is difficult to ensure the level is completely solved, and the risk that the die table is inclined is avoided.

[0028] As shown in Figure 2 And Figure 4 The heat dissipation mechanism is arranged between the mould body 2 and the back-shaped water tank 4, and the heat dissipation mechanism comprises a bottom plate 12, the bottom plate 12 is fixedly installed on the inner wall surface of the bottom end of the back-shaped water tank 4, the heat dissipation frame 13 is fixedly installed on the middle part of the bottom end of the mould body 2, the heat dissipation frame 13 movably penetrates the bottom plate 12 and the mould frame 1 at the bottom end, so that the heat dissipation frame 13 can move up and down relative to the bottom plate 12, the water pipes 14 are fixedly installed at the two ends of the back-shaped water tank 4, and the one end of the outer side of the water pipe 14 penetrates the mould frame 1 and is fixedly installed with the connector 15;

[0029] In this embodiment, the mold body 2 and the back-shaped water tank 4 directly contact to conduct heat dissipation and the ground conduction heat dissipation of the heat dissipation frame 13, which significantly improves the heat dissipation efficiency, wherein the circulating cooling liquid of the back-shaped water tank 4 realizes continuous active heat dissipation, and the heat dissipation frame 13 is assisted by the large-area contact with the ground, and the two cooperate to ensure the stability of the mold temperature.

[0030] Working principle: the mold frame 1 realizes flexible movement as a whole through the four corner moving wheels 20 at the bottom end, when the mold needs to be fixed, the lifting mechanism is started, the motor 18 drives the transmission shaft 17 to rotate, drives the gear 19 to mesh with the rack 5 on both sides of the mold body 2 to drive the mold body 2 to stably descend along the middle part of the mold frame 1, until the outer side end surface of the mold body 2 is tightly attached to the inner side surface of the back-shaped water tank 4 to form a direct heat conduction contact, and the bottom end of the heat dissipation frame 13 is in contact with the ground to form an auxiliary heat dissipation point; when pressure casting is performed, the metal melt is injected into the mold cavity 9 of the mold body 2 through the liquid inlet pipe 11, the hydraulic cylinder 6 pushes the pressing plate 7 to press down, so that the mold cover 8 is tightly closed with the stepped groove 10 to form a sealed cavity, and the casting is formed under high pressure, at this time, the heat generated by the mold body 2 is dissipated through two paths at the same time: one is to conduct heat to the cooling liquid in the water tank through the direct contact surface between the bottom of the mold body 2 and the back-shaped water tank 4, and the other is to directly conduct heat to the ground through the heat dissipation frame 13; the cooling liquid in the back-shaped water tank 4 circulates through the water pipe 14 to realize continuous heat dissipation; after the pressure casting is completed, the lifting mechanism is reversely operated, the mold body 2 is lifted to make the moving wheels 20 re-contact with the ground, at this time, the mold body 2 is separated from the back-shaped water tank 4, and the heat dissipation frame 13 also leaves the ground.

[0031] It should be noted that the two motors 18 are synchronously controlled through the PLC controller, the controller outputs two PWM signals connected to the motor driver, and the encoder is installed on the motor output shaft to feedback the rotating speed in real time, when working, the controller takes the left motor as the main motor, and the rotating speed of the right motor is dynamically adjusted according to the encoder data, so that the synchronous error of the meshing displacement of the two gears 19 and the racks 5 is not more than 1mm.

[0032] The basic principle, main features and advantages of the utility model are shown and described above. Those skilled in the art should understand that the utility model is not limited by the above embodiments, the above embodiments and descriptions in the specification are only preferred examples of the utility model, and are not used to limit the utility model, various changes and improvements of the utility model can be made without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The protection scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. An oil pan die-casting mold characterized by comprising: The utility model relates to a die frame (1), the middle part of die frame (1) is movably installed with die body (2), and the middle part of die frame (1) is fixedly installed with rack (3), and die casting mechanism is arranged between die body (2) and rack (3); The bottom middle part of die frame (1) is fixedly installed with back type water tank (4), and heat dissipation mechanism is arranged between die body (2) and back type water tank (4); The both sides outer walls of die body (2) are fixedly installed with vertical rack (5), and lifting mechanism is arranged between die frame (1) and rack (5). The die casting mechanism includes hydraulic cylinder (6), the top middle part of rack (3) is fixedly installed with vertical hydraulic cylinder (6), the output shaft end of hydraulic cylinder (6) is fixedly installed with horizontal pressing plate (7), the middle part lower end surface of pressing plate (7) is integrally formed with die cover (8), the inside of die body (2) is provided with casting groove (9), and the upper end between casting groove (9) and the inner wall of die body (2) is provided with stepped groove (10), and the pressing plate (7) is matched with stepped groove (10).

2. A machine oil pan die according to claim 1, wherein: The front upper end of die body (2) is fixedly installed with liquid inlet pipe (11).

3. A machine oil pan die according to claim 2 wherein: The heat dissipation mechanism includes bottom plate (12), the bottom end inner wall surface of back type water tank (4) is fixedly installed with horizontal bottom plate (12), the bottom middle part of die body (2) is fixedly installed with heat dissipation frame (13), the bottom end of heat dissipation frame (13) movably penetrates bottom plate (12) and die frame (1), so that heat dissipation frame (13) can move up and down relative to bottom plate (12), and water pipe (14) is fixedly installed at both ends of back type water tank (4), and the outside one end of water pipe (14) penetrates die frame (1) and is fixedly installed with connector (15).

4. The oil pan die of claim 1 wherein: The lifting mechanism includes shaft frame (16), a pair of shaft frames (16) are fixedly installed at the upper end of die frame (1) and close to both sides of die body (2), transmission shaft (17) is movably installed between two shaft frames (16) through bearing, the middle part of transmission shaft (17) is fixedly installed with gear (19) engaged with rack (5), the outside of the front shaft frame (16) is fixedly installed with motor (18), and the output shaft of motor (18) is fixedly connected with transmission shaft (17).

5. The oil pan die of claim 1 wherein: The bottom end of die frame (1) is fixedly installed with moving wheel (20).

6. The oil pan die of claim 1 wherein: ​

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