Metal casting mold

Abstract

The utility model relates to the technical field of dies, in particular to a metal casting die which comprises a left die, a right die, a die holder, an electric push rod and a wedge block, die cavities which can be matched with each other and used for casting are formed in the left die and the right die, the left die and the die holder form a moving pair in the length direction of the die holder, and the right die and the die holder form a moving pair in the width direction of the die holder. The electric push rod is fixed to the die base, the movable end of the electric push rod is connected with the left die and can push the left die to be matched with the right die, the wedge blocks are arranged on the contact face of the left die and the right die, the wedge blocks arranged on the left die and the right die are in a rotational symmetry shape, inclined faces between the wedge blocks can be matched, and the right die is kept near the accurate die closing position through elastic force of the spring. And then the right mold is forced to move by utilizing mutual extrusion of inclined surfaces of wedge blocks on the left mold and the right mold to ensure that the right mold is at a mold closing position, the correction position ensures accurate mold closing of the left mold and the right mold, and the casting precision is ensured.

Description

Technical Field

[0001] The utility model relates to the field of molds, in particular to a metal casting mold. Background Art

[0002] Casting is a method of pouring liquid metal into a casting cavity that matches the shape of the part, and then cooling and solidifying it to obtain a part or blank casting with a predetermined shape, size and performance.

[0003] The casting mold is prone to inaccurate mold closing during the mold closing process (a casting mold with application number 202122003635.5 and a casting mold with application number 202120663944.2 both mentioned the same technical problem in the background technology), which will affect the accuracy of metal castings. The purpose of the utility model is to propose a new casting mold to solve the above-mentioned technical problem. Utility Model Content

[0004] The purpose of the utility model is to provide a metal casting mold to solve the problems mentioned in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: including a left mold, a right mold, a mold base, an electric push rod and a wedge block, the left mold and the right mold are formed with mold cavities that can cooperate with each other for casting, the left mold and the mold base constitute a moving pair along the length direction of the mold base, the right mold and the mold base constitute a moving pair along the width direction of the mold base, the electric push rod is fixed to the mold base, the movable end of the electric push rod is connected to the left mold to push the left mold and the right mold to cooperate, the wedge block is arranged on the contact surface of the left mold and the right mold, the wedge blocks arranged on the left mold and the right mold are rotationally symmetrical and the inclined surfaces between the wedge blocks can cooperate with each other.

[0006] In order to optimize the above technical solution, further measures are taken as follows: a track distributed along the length direction of the mold base is formed on the top surface of the mold base, and a first slide groove is formed on the bottom surface of the left mold. The mold base is set on the track through the first slide groove to realize that the left mold and the mold base form a moving pair along the length direction of the mold base. The cooperation of the first slide groove and the track can enable the left mold to move stably on the mold base along the length direction of the mold base.

[0007] As a further improvement of the above technical solution: a second sliding groove distributed along the width direction of the mold base is formed on the bottom surface of the right mold, and a fixed block is formed on the top surface of the mold base. The fixed block cooperates with the second sliding groove to realize that the right mold and the mold base constitute a moving pair in the width direction of the mold base. The second sliding groove cooperates with the fixed block so that the right mold can move stably on the mold base along the width direction of the mold base.

[0008] As a further improvement of the technical solution: a support column is fixed at the adjacent end of the mold base and the right mold, the support column presses against the back of the right mold, and the support column presses against the right mold to avoid damage to the connection between the right mold and the bottom mold. The support column cooperates with the electric push rod to ensure that the left mold is tightly pressed on the right mold and cooperates with the right mold.

[0009] As an improvement on the aforementioned technical solution: the wedge block is detachably connected to the left mold and the right mold, a screw hole is formed on the wedge block, and grooves for accommodating the wedge block are formed on the left mold and the right mold. Bolts pass through the screw holes and cooperate with the grooves to realize the detachable connection between the wedge block and the left mold and the right mold. The detachable structure facilitates the replacement of the wedge block after wear, thereby ensuring that the left mold and the right mold can cooperate accurately.

[0010] Furthermore: the wedge blocks are arranged on the left and right sides of the contact surface of the left and right molds, and the symmetrical arrangement ensures that the left and right molds are evenly stressed to avoid eccentric wear.

[0011] Furthermore: it also includes a movable block and a spring. The movable block is located on the bottom surface of the right mold. The two ends of the spring respectively press against the fixed block and the movable block. After the right mold deviates to the correct position, it will squeeze the spring. The spring generates elastic force to prompt the right mold to return to the correct position, which is convenient for the subsequent wedge block to correct the position of the right mold.

[0012] From the above description of the structure of the utility model, it can be seen that compared with the prior art, the utility model has the following advantages:

[0013] The utility model provides a metal casting mold, which uses the elastic force of a spring to keep the right mold near the accurate mold closing position, and then uses the mutual extrusion of the inclined surfaces of the wedge blocks on the left and right molds to force the right mold to move to ensure that the right mold is in the mold closing position, and corrects the position to ensure that the left and right molds are accurately closed, thereby ensuring the accuracy of the casting. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 This is a three-dimensional structural diagram of the utility model (wedge block disassembled state);

[0017] Figure 3 is a schematic diagram of the three-dimensional structure of the wedge;

[0018] Figure 4 A schematic diagram of the connection structure of the fixed block and the movable block;

[0019] In the figure: left mold 1, mold cavity 101, first slide groove 102, right mold 2, second slide groove 201, movable block 202, spring 203, mold base 3, track 301, fixed block 302, support column 303, electric push rod 4, wedge block 5, screw hole 501, groove 502 DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Example

[0022] See also Figure 1-4 The utility model provides a metal casting mold, including a left mold 1, a right mold 2, a mold base 3, an electric push rod 4, a wedge block 5, a movable block 202 and a spring 203. The left mold 1 and the right mold 2 are formed with a mold cavity 101 that can cooperate with each other for casting. The left mold 1 and the mold base 3 constitute a moving pair along the length direction of the mold base 3. The top surface of the mold base 3 is formed with a track 301 distributed along the length direction of the mold base 3. The bottom surface of the left mold 1 is formed with a first slide groove 102. The mold base 3 is arranged on the track 301 through the first slide groove 102 to realize that the left mold 1 and the mold base 3 constitute a moving pair along the length direction of the mold base 3.

[0023] The right mold 2 and the mold base 3 form a moving pair along the width direction of the mold base 3. The bottom surface of the right mold 2 is formed with a second slide groove 201 distributed along the width direction of the mold base 3, and the top surface of the mold base 3 is formed with a fixed block 302. The fixed block 302 cooperates with the second slide groove 201 to realize that the right mold 2 and the mold base 3 form a moving pair in the width direction of the mold base 3. A support column 303 is fixedly provided at the adjacent ends of the mold base 3 and the right mold 2, and the support column 303 is against the back of the right mold 2.

[0024] The electric push rod 4 is fixed to the mold base 3, and the movable end of the electric push rod 4 is connected to the left mold 1 to push the left mold 1 and the right mold 2 to cooperate. The wedge block 5 is arranged on the left and right sides of the contact surface of the left mold 1 and the right mold 2. The wedge blocks 5 arranged on the left mold 1 and the right mold 2 are rotationally symmetrical and the inclined surfaces between the wedge blocks 5 can cooperate with each other. The wedge block 5 is detachably connected to the left mold 1 and the right mold 2. A screw hole 501 is formed on the wedge block 5, and a groove 502 for accommodating the wedge block 5 is formed on the left mold 1 and the right mold 2. The bolt passes through the screw hole 501 and cooperates with the groove 502 to realize the detachable connection of the wedge block 5 and the left mold 1 and the right mold 2. The movable block 202 is located on the bottom surface of the right mold 2 and is fixedly connected to the right mold 2. The two ends of the spring 203 respectively resist the fixed block and the movable block 202.

[0025] The electric push rod 4 refers to a linear actuator in the prior art whose length can be changed and can push other components. It belongs to the prior art content and is known to those skilled in the art. Therefore, the specific structure and working principle of the electric push rod 4 will not be further explained. In the specific implementation, the electric push rod 4 is controlled by an external controller. The control circuit of the controller can be realized by simple programming by technicians in this field. The provision of power is also common knowledge in this field. In addition, the present invention is mainly used to protect mechanical devices, so the present invention will not explain the control method and circuit connection in detail.

[0026] Working principle: The movable end of the electric push rod 4 drives the left mold 1 to move on the mold base 3 and finally fits closely with the right mold 2. After the molten metal is poured into the mold cavity 101 and waits for the metal to cool and solidify, the electric push belt drives the left mold 1 to move in the opposite direction to separate the left mold 1 from the right mold 2, thus completing the casting process. Electric control is used to realize mold opening and closing, with high working efficiency.

[0027] The movable block 202 at the bottom of the right mold 2 is pressed against the fixed block 302 on the top of the mold base 3 through the spring 203. When the right mold 2 deviates from the standard position, the spring 203 is compressed, and the elastic force of the spring 203 will cause the right mold 2 to return to the accurate position without too much position deviation from the accurate position. During the mold closing process of the left mold 1 and the right mold 2, the inclined surface of the wedge block 5 on the left mold 1 will press the inclined surface on the wedge block 5 on the right mold 2, forcing the right mold 2 to move back to the accurate position, ensuring the accuracy of the mold closing.

[0028] The wedge block 5 and the grooves 502 on the left mold 1 and the right mold 2 are detachable structures. When the wedge block 5 is worn, the technician can remove the worn wedge block 5 and replace it with a new wedge block 5 to ensure accurate mold closing of the left mold 1 and the right mold 2.

[0029] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A metal casting mold, comprising a left mold (1) and a right mold (2), wherein the left mold (1) and the right mold (2) are formed with mold cavities (101) that can cooperate with each other for casting, characterized in that: It also includes a mold base (3), an electric push rod (4) and a wedge block (5); The left mold (1) and the mold base (3) form a movable pair along the length direction of the mold base (3), and the right mold (2) and the mold base (3) form a movable pair along the width direction of the mold base (3); The electric push rod (4) is fixed to the mold base (3), and the movable end of the electric push rod (4) is connected to the left mold (1) to push the left mold (1) and the right mold (2) to cooperate; The wedge blocks (5) are arranged on the contact surfaces of the left mold (1) and the right mold (2); the wedge blocks (5) arranged on the left mold (1) and the right mold (2) are rotationally symmetrical and the inclined surfaces between the wedge blocks (5) can cooperate with each other.

2. A metal casting mold according to claim 1, characterized in that: The top surface of the mold base (3) is formed with a track (301) distributed along the length direction of the mold base (3), and the bottom surface of the left mold (1) is formed with a first slide groove (102). The mold base (3) is arranged on the track (301) through the first slide groove (102) so that the left mold (1) and the mold base (3) form a moving pair along the length direction of the mold base (3).

3. A metal casting mold according to claim 1, characterized in that: The bottom surface of the right mold (2) is formed with a second slide groove (201) distributed along the width direction of the mold base (3), and the top surface of the mold base (3) is formed with a fixed block (302). The fixed block (302) cooperates with the second slide groove (201) to realize that the right mold (2) and the mold base (3) form a moving pair in the width direction of the mold base (3).

4. A metal casting mold according to any one of claims 1 to 3, characterized in that: A support column (303) is fixedly provided at the adjacent end of the mold base (3) and the right mold (2), and the support column (303) abuts against the back of the right mold (2).

5. A metal casting mold according to any one of claims 1 to 3, characterized in that: The wedge block (5) is detachably connected to the left mold (1) and the right mold (2); a screw hole (501) is formed on the wedge block (5); a groove (502) for accommodating the wedge block (5) is formed on the left mold (1) and the right mold (2); a bolt passes through the screw hole (501) and cooperates with the groove (502) to realize the detachable connection between the wedge block (5) and the left mold (1) and the right mold (2).

6. A metal casting mold according to claim 5, characterized in that: The wedge blocks (5) are arranged on the left and right sides of the contact surfaces of the left mold (1) and the right mold (2).

7. A metal casting mold according to any one of claims 1 to 3, characterized in that: It also includes a movable block (202) and a spring (203), wherein the movable block (202) is located on the bottom surface of the right mold (2), and the two ends of the spring (203) respectively abut against the fixed block and the movable block (202).

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