Aluminum alloy die-casting die facilitating demolding treatment

Abstract

The utility model discloses an aluminum alloy die-casting die convenient for demoulding treatment, which comprises a bottom frame, the top of the bottom frame is provided with a lower die, the top of the bottom frame is fixedly connected with a support frame, the top of the support frame is fixedly provided with a first air cylinder, and the bottom end of a piston rod of the first air cylinder penetrates through the support frame and is fixedly connected with an upper die. The upper mold is located over the lower mold, four sets of telescopic rods are symmetrically and fixedly installed on the top of the bottom frame, and two sets of base plates are fixedly connected to the tops of the four sets of telescopic rods. When the upper die moves downwards, two sets of base plates make contact with each other, then through cooperation of four sets of telescopic rods and four sets of springs, downward pressure from the upper die can be relieved, then the upper die can make contact with the lower die gently, and then the service life of the device is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to die casting die technical field, concretely is a kind of aluminium alloy die casting die convenient to stripping process. BACKGROUND

[0002] Die casting die is a tool for casting metal parts, a tool for completing die casting process on a dedicated die casting forging machine, and the basic process of die casting is: metal liquid is first cast into the cavity of the die at low speed or high speed, the die has movable cavity surface, which is pressed and forged with the cooling process of metal liquid, which not only eliminates the shrinkage porosity defects of the blank, but also makes the internal organization of the blank reach the broken grains of forging state, and the comprehensive mechanical properties of the blank are significantly improved.

[0003] For example, an aluminum alloy die casting die (publication number: CN220361973U), the device includes a mounting bracket, the mounting bracket top end four corners are equipped with support rod, the support rod top end is equipped with fixed plate in common, the mounting bracket inner bottom wall both sides are equipped with driving motor, the driving motor output shaft top end is equipped with threaded rod, the fixed plate bottom end both sides are equipped with movable mechanism, the threaded rod top end is connected with movable mechanism, the utility model discloses a threaded transmission between threaded rod and threaded sleeve by controlling driving motor to drive threaded rod to rotate, can drive upper die to move up and down, make upper die and lower die butt joint, can the workpiece is die casting, and by controlling hydraulic rod elongation, can drive the extension of stripping rod into the inside of lower die, make stripping rod can eject the workpiece in lower die, solve the problem that workpiece is stuck in the inside of die and cannot be removed.

[0004] The device is used, threaded rod is rotated by driving motor, threaded transmission between threaded rod and threaded sleeve is formed, and then upper die is moved, but upper die is collided with lower die when moving downward, and the service life of the device is easily reduced, so we need to put forward a kind of aluminium alloy die casting die convenient to stripping process. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of aluminium alloy die casting die convenient to stripping process, slow down the pressure from upper die, and then upper die can be more gently contacted with lower die, and then the service life of the device is improved, to solve the problems proposed in the above background art.

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

[0007] The utility model provides an aluminum alloy die -casting die convenient to demould, including the bottom frame, the top of bottom frame is provided with lower mould, the top of bottom frame is fixedly connected with support frame, the top of support frame is fixedly installed with first air cylinder, the bottom of first air cylinder piston rod penetrates support frame and is fixedly connected with upper mould, and upper mould is located the upside of lower mould, the top of bottom frame is symmetrically fixedly installed with four groups telescopic rods, two groups of spacers are fixedly connected to the top of four groups telescopic rods, spring is equipped on the outer wall of four groups telescopic rods, the inner top of bottom frame still is provided with the top die assembly convenient to mould and carries out demoulding.

[0008] Preferably, the inner wall of the support frame is provided with a sliding groove on both sides, and the sliding grooves are slidably installed with sliding blocks on both sides.

[0009] Preferably, the top die assembly comprises a second air cylinder, which is fixedly installed on the inner top of the bottom frame, and the top end of the piston rod of the second air cylinder penetrates the bottom frame and the lower mold in sequence and is fixedly connected with a top plate.

[0010] Preferably, the inner bottom of the lower mold is provided with a recess slot matched with the top plate, and the top plate is located inside the recess slot, and the top of the top plate is located on the same horizontal line as the inner bottom of the lower mold.

[0011] Preferably, the top of the lower mold is symmetrically provided with two groups of positioning holes, and the positioning holes are movably inserted with positioning pins.

[0012] Preferably, the lower mold is provided with a cooling cavity inside, and the lower mold is fixedly communicated with a water inlet pipe on one side of the cooling cavity, and the water inlet pipe is provided below the cooling cavity and is fixedly communicated with a drain pipe.

[0013] Preferably, the upper mold is provided with an inlet pipe, and the bottom of the inlet pipe is located on the same horizontal line as the bottom of the upper mold, and the top of the inlet pipe is located above the top of the upper mold.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] The piston rod of the first air cylinder is telescopic, driving the upper mold to move, and when the upper mold moves downward, two spacers are in contact, and then through the cooperation of four telescopic rods and four springs, the downward pressure from the upper mold can be slowed down, so that the upper mold can be in contact with the lower mold more gently, thereby improving the service life of the device. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the structural schematic diagram of the utility model.

[0017] Figure 2 It is the structure schematic view of upper die and lower die of the utility model;

[0018] Figure 3 It is the structure schematic view of the utility model of splitting open;

[0019] Figure 4 It is the structure schematic view of lower die of the utility model of splitting open.

[0020] In the drawing: 1, underframe;2, lower die;3, support frame;4, first air cylinder;5, upper die;6, telescopic rod;7, backing plate;8, spring;9, sliding block;10, top plate;11, positioning hole;12, positioning pin;13, cooling cavity;14, water inlet pipe;15, drain pipe;16, feeding pipe;17, second air cylinder. DETAILED DESCRIPTION

[0021] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction 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 those skilled in the art without creative labor fall within the scope of the utility model.

[0022] Please refer to Figures 1-4 The utility model provides a technical scheme:

[0023] A kind of aluminum alloy die casting die for facilitating stripping process, including underframe 1, the top of underframe 1 is provided with lower die 2, the top of underframe 1 is fixedly connected with support frame 3, the top of support frame 3 is fixedly installed with first air cylinder 4, the bottom end of first air cylinder 4 piston rod penetrates support frame 3 and is fixedly connected with upper die 5, and upper die 5 is located directly above lower die 2, the top of underframe 1 is symmetrically fixedly installed with four telescopic rods 6, two groups of backing plates 7 are fixedly connected on the top of four telescopic rods 6, spring 8 is set on the outer wall of four telescopic rods 6, the inner top of underframe 1 is also provided with the top die assembly for facilitating stripping of mould, by the piston rod of first air cylinder 4 for telescoping, driving upper die 5 moves, upper die 5 will have two groups of backing plates 7 contact when moving downwards, then by the cooperation of four telescopic rods 6 and four springs 8, the downward pressure from upper die 5 can be slowed down, so that upper die 5 can be relatively gentle and contacted with lower die 2, to improve the service life of device;

[0024] The inner wall of the support frame 3 is provided with a sliding groove on both sides, and the inner sides of the two groups of sliding grooves are slidably provided with sliding blocks 9, and the two groups of sliding blocks 9 are fixedly connected with the two sides of the upper die 5. When the upper die 5 moves, it will drive the two groups of sliding blocks 9 to move, and the two groups of sliding blocks 9 slide in the two groups of sliding grooves, thereby improving the stability of the upper die 5;

[0025] The top die assembly comprises a second cylinder 17 fixedly installed at the inner top of the chassis 1, and the top end of the piston rod of the second cylinder 17 penetrates the chassis 1 and the lower die 2 in sequence and is fixedly connected with a top plate 10. The piston rod of the second cylinder 17 can be extended and retracted to drive the top plate 10 fixedly connected therewith to move. The top plate 10 can lift the formed die, thereby facilitating the die demolding;

[0026] The inner bottom of the lower die 2 is provided with a clearance groove matched with the top plate 10, and the top plate 10 is located in the clearance groove, and the top of the top plate 10 is located on the same horizontal line as the inner bottom of the lower die 2. By providing the clearance groove and locating the top plate 10 in the clearance groove, the top plate 10 can prevent the die from being interfered with the shape of the die, effectively ensuring the shape of the formed die;

[0027] The top of the lower die 2 is symmetrically provided with two groups of positioning holes 11, and the inner sides of the two groups of positioning holes 11 are movably inserted with positioning pins 12, and the top of the two groups of positioning pins 12 is fixedly connected with the upper die 5. When the upper die 5 moves, it will drive the two groups of positioning pins 12 fixedly connected therewith to move, and the two groups of positioning pins 12 are inserted into the two groups of positioning holes 11, thereby ensuring the accuracy of the upper die 5 and the lower die 2 when they are closed;

[0028] The inner side of the lower die 2 is provided with a cooling cavity 13, and the lower die 2 is fixedly connected with a water inlet pipe 14 on one side of the cooling cavity 13. A drain pipe 15 is arranged below the water inlet pipe 14 and is fixedly connected with the cooling cavity 13. Cold water enters the cooling cavity 13 through the water inlet pipe 14, which is conducive to cooling the die and accelerating the molding speed of the die. The water can be discharged through the drain pipe 15. It should be noted that the water inlet pipe 14 and the drain pipe 15 should be provided with plugs at one end to prevent water from flowing out;

[0029] The upper die 5 is provided with an inlet pipe 16 penetratingly arranged thereon, and the bottom of the inlet pipe 16 is located on the same horizontal line as the bottom of the upper die 5. The top of the inlet pipe 16 is located above the top of the upper die 5. The inlet pipe 16 is mainly used for feeding. When the upper die 5 and the lower die 2 are closed, the material enters the inside of the lower die 2 through the inlet pipe 16.

[0030] Working principle: the utility model uses, through the piston rod of first cylinder 4 telescopic, drive the upper die 5 moves, the upper die 5 will have two sets of fender plate 7 contact when moving downward, then through the cooperation of four sets of telescopic rod 6 and four sets of spring 8, can slow down the pressure from the upper die 5, and then can make the upper die 5 can be relatively gentle with lower die 2 contact, and then improve the service life of device.

[0031] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An aluminum alloy die-casting mold which is easy to handle for demolding, comprising a base frame (1), characterized in that: The top of the chassis (1) is provided with a lower mold (2), the top of the chassis (1) is fixedly connected with a support frame (3), the top of the support frame (3) is fixedly installed with a first cylinder (4), the bottom end of the piston rod of the first cylinder (4) penetrates the support frame (3) and is fixedly connected with an upper mold (5), and the upper mold (5) is located directly above the lower mold (2), the top of the chassis (1) is symmetrically fixedly installed with four groups of telescopic rods (6), two groups of the telescopic rods (6) are fixedly connected with two groups of spacers (7), the outer walls of the four groups of telescopic rods (6) are all sleeved with springs (8), and the inner top of the chassis (1) is also provided with a top mold assembly for facilitating demolding of the mold.

2. The aluminum alloy die casting mold with easy demolding treatment according to claim 1, characterized in that: The inner walls of the support frame (3) are both provided with a sliding groove, and the sliding grooves are both slidably installed with a sliding block (9), and the two groups of sliding blocks (9) are respectively fixedly connected with the two sides of the upper mold (5).

3. The aluminum alloy die casting mold with easy demolding treatment according to claim 1, characterized in that: The top mold assembly comprises a second cylinder (17), the second cylinder (17) is fixedly installed on the inner top of the chassis (1), and the top end of the piston rod of the second cylinder (17) penetrates the chassis (1) and the lower mold (2) in sequence and is fixedly connected with a top plate (10).

4. The aluminum alloy die casting mold with easy demolding treatment according to claim 3, characterized in that: The inner bottom of the lower mold (2) is provided with a recessed groove matched with the top plate (10), the top plate (10) is located in the recessed groove, and the top of the top plate (10) is located on the same horizontal line as the inner bottom of the lower mold (2).

5. The aluminum alloy die casting mold with easy demolding treatment according to claim 1, characterized in that: The top of the lower mold (2) is symmetrically provided with two groups of positioning holes (11), the positioning holes (11) are movably inserted with a positioning pin (12), and the top of the positioning pin (12) is fixedly connected with the upper mold (5).

6. The aluminum alloy die casting mold with easy demolding treatment according to claim 1, characterized in that: The lower mold (2) is provided with a cooling cavity (13), the lower mold (2) is fixedly communicated with a water inlet pipe (14) on one side of the cooling cavity (13), and the lower mold (2) is fixedly communicated with a drain pipe (15) below the water inlet pipe (14).

7. The aluminum alloy die casting mold with easy demolding treatment according to claim 1, characterized in that: The upper mold (5) is provided with an inlet pipe (16), the bottom of the inlet pipe (16) is located on the same horizontal line as the bottom of the upper mold (5), and the top of the inlet pipe (16) is located above the top of the upper mold (5).

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