A vertical aluminum alloy differential pressure casting machine adopting a hydraulic brake main locking mechanism

Abstract

The utility model discloses a vertical aluminium alloy differential pressure casting machine adopting hydraulic brake holding main lock mechanism, including hydraulic pressure oil cylinder, fixed platform, stripping and material mechanism, upper die plate, guide stand, lower die plate, hydraulic brake holding main lock mechanism, material receiving mechanism, hydraulic brake holding main lock mechanism includes locking oil cylinder, main lock rod, brake holding mechanism, brake holding oil cylinder, locking oil cylinder is installed on the fixed platform of differential pressure casting machine, and the main lock rod is installed on the upper die plate, locking oil cylinder includes piston rod, and brake holding mechanism is installed on the piston rod of locking oil cylinder, brake holding mechanism is driven and is connected with brake holding oil cylinder, brake holding mechanism includes left and right brake holding block, and left and right brake holding block includes first bevel gear, and the second bevel gear that is equipped with with the bevel gear of left and right brake holding block is matched on the main lock rod.

Description

Technical Field

[0001] This utility model relates to aluminum alloy differential pressure casting machines, and more particularly to a vertical aluminum alloy differential pressure casting machine employing a hydraulic brake main locking mechanism. Background Technology

[0002] Currently available vertical aluminum alloy differential pressure casting machines mainly consist of a lower mold plate, an upper mold plate, a mold sealing tank, a material receiving mechanism, a fixed platform, guide columns, a demolding and material ejection mechanism, an upper mold hydraulic drive mechanism, and a wedge-type main locking mechanism. The wedge-type main locking mechanism includes a hydraulic wedge slider, an upper hydraulic wedge, and a lower hydraulic wedge. The hydraulic wedge slider is located on the lower side of the upper plate, with upper hydraulic wedges on both sides. The lower hydraulic wedge is located on the upper part of the support column, and the lower end of the support column is rigidly connected to the movable plate. In the mold-locked state, the upper hydraulic wedge is driven by the hydraulic wedge slider to engage with the lower hydraulic wedge, generating a downward pressure on the support column, thereby locking the movable plate and preventing the sealing tank from opening, thus achieving mold locking.

[0003] The existing wedge-type main locking mechanism relies on the interaction of steel inclined surfaces to generate a downward locking force. However, the sliding friction of these steel inclined surfaces easily causes wear, and after a period of operation, the locking force decreases due to the wear of the wedges. Furthermore, the metal shavings that fall off during friction can easily clump together within the main locking structure, causing the entire mechanism to jam. At the same time, the existing wedge-type main locking mechanism cannot adequately adapt to different locking heights caused by thermal expansion and processing errors in different molds and crucibles, which can easily lead to problems such as inability to lock properly or over-locking. Summary of the Invention

[0004] The purpose of this utility model is to address the problems of the traditional wedge-type main locking mechanism by disclosing a vertical aluminum alloy differential pressure casting machine that uses a new hydraulic brake main locking mechanism to replace the original wedge-type main locking mechanism.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a vertical aluminum alloy differential pressure casting machine employing a hydraulic brake main locking mechanism, mainly comprising a hydraulic cylinder 1, a fixed platform 2, a demolding and material ejection mechanism 3, an upper template 4, a guide column 5, a lower template 6, a hydraulic brake main locking mechanism 7, and a material receiving mechanism 8. The hydraulic cylinder 1 and guide column 5 are mounted on the fixed platform 2, the demolding and material ejection mechanism 3 is mounted on the upper template 4, the upper template 4 and lower template 6 are arranged vertically, the material receiving mechanism 8 is mounted on the side of the upper template 4, and the hydraulic brake main locking mechanism 7 is mounted between the fixed platform 2 and the upper template 4.

[0006] The hydraulic brake main locking mechanism 7 includes a locking cylinder 7-1, a main locking rod 7-3, a brake mechanism 7-2, and a brake cylinder 7-4. The locking cylinder 7-1 is mounted on the fixed platform 2 of the differential pressure casting machine, and the main locking rod 7-3 is mounted on the upper template 4. The locking cylinder 7-1 includes a piston rod, and the brake mechanism 7-2 is mounted on the piston rod of the locking cylinder 7-1. The brake mechanism 7-2 is drivenly connected to the brake cylinder 7-4. The brake mechanism 7-2 includes left and right brake blocks, each brake block including a first helical tooth, and the main locking rod 7-3 is provided with a second helical tooth that cooperates with the helical teeth of the left and right brake blocks.

[0007] Furthermore, the angles of the first and second helical teeth are preferably inclined upwards at 40-50°.

[0008] Furthermore, each helical tooth is 20 or 25 mm long, which is compatible with the mold opening and closing cylinder.

[0009] Furthermore, the piston rod end face of the locking cylinder 7-1 is equipped with an M12 threaded hole. The brake mechanism 7-2 also includes a mounting base 7-5, with left and right brake blocks installed inside the mounting base 7-5. A transition plate 7-7 is provided, connecting the piston rod of the locking cylinder 7-1 and the mounting base 7-5 via the transition plate 7-7. The transition plate 7-7 facilitates installation, as it is difficult to directly install the mounting base onto the piston rod.

[0010] Furthermore, the left and right brake blocks are connected together by a connecting rod 7-6, and the brake cylinder 7-4 is driven by the connecting rod 7-6 to realize single-point double action of the brake cylinder 7-4 and control the opening and closing of the brake mechanism 7-2.

[0011] Furthermore, the stroke of the locking cylinder 7-1 is greater than the length of one tooth but less than the length of two teeth.

[0012] The outer surface of the main locking rod 7-3 is plated with hard chrome, with a plating thickness of 0.04-0.08mm.

[0013] Furthermore, the hydraulic brake main locking mechanism 7 is equipped with at least 4 locks.

[0014] This invention offers the following advantages: The vertical aluminum alloy differential pressure casting machine employing a hydraulic brake main locking mechanism experiences low wear during operation, achieving stable clamping within the shortest stroke through the hydraulic cylinder. The cooperation between the locking cylinder and the brake cylinder reduces the size of the brake main locking mechanism, facilitating installation and maintenance. It can adapt well to mold sealing tanks of different sizes, exhibiting good mold adaptability, and allows for flexible determination of the locking height, reducing over-locking issues. Attached Figure Description

[0015] Figure 1 This is a front view of the vertical aluminum alloy differential pressure casting machine of this utility model, which adopts a hydraulic holding brake main locking mechanism.

[0016] Figure 2 This is a left view of the vertical aluminum alloy differential pressure casting machine of this utility model, which adopts a hydraulic holding brake main locking mechanism.

[0017] Figure 3 This is a partial sectional view of the hydraulic brake main locking mechanism of the vertical aluminum alloy differential pressure casting machine using a hydraulic brake main locking mechanism, according to this utility model.

[0018] Figure 4 This is a top view of the hydraulic brake main locking mechanism of this utility model.

[0019] Figure 5 This is a sectional view along line AA of the hydraulic brake main locking mechanism of this utility model.

[0020] Figure 6 This is a BB-direction sectional view of the hydraulic brake main locking mechanism of this utility model. Detailed Implementation

[0021] To facilitate understanding by those skilled in the art, the present invention will be further described below in conjunction with embodiments and accompanying drawings.

[0022] This embodiment uses a vertical aluminum alloy differential pressure casting machine with a hydraulic brake main locking mechanism, such as... Figure 1-2 As shown, it mainly consists of a hydraulic cylinder 1, a fixed platform 2, a demolding and material ejection mechanism 3, an upper template 4, a guide column 5, a lower template 6, a hydraulic brake main locking mechanism 7, and a material receiving mechanism 8.

[0023] like Figure 3 As shown, the hydraulic brake main locking mechanism 7 of the aluminum alloy vertical differential pressure casting machine includes a locking cylinder 7-1, a main locking rod 7-3, a brake mechanism 7-2, and a brake cylinder 7-4. The locking cylinder 7-1 is installed on the fixed platform 2 of the differential pressure casting machine, and the main locking rod 7-3 is installed on the upper template 4. The locking cylinder 7-1 includes a piston rod, and the brake mechanism 7-2 is installed on the piston rod of the locking cylinder 7-1. The brake mechanism 7-2 is drivenly connected to the brake cylinder 7-4. The brake mechanism 7-2 includes left and right brake blocks, each brake block including a first helical tooth, and the main locking rod 7-3 is provided with a second helical tooth that cooperates with the helical teeth of the left and right brake blocks.

[0024] like Figure 4-5 As shown, the first and second helical teeth are preferably inclined upwards at 40-50°, and each helical tooth is 20 or 25 mm long, which is compatible with the mold opening and closing cylinder. The stroke of the locking cylinder 7-1 is greater than the length of one tooth but less than the length of two teeth.

[0025] The outer surface of the main locking rod 7-3 is plated with hard chrome, with a plating thickness of 0.04-0.08mm.

[0026] The hydraulic brake main locking mechanism 7 has at least 4 locking mechanisms.

[0027] The piston rod end face of the locking cylinder 7-1 is equipped with an M12 threaded hole. The brake mechanism 7-2 also includes a mounting base 7-5, in which the left and right brake blocks are installed. A transition plate 7-7 is provided, which connects the piston rod of the locking cylinder 7-1 and the mounting base 7-5. The transition plate 7-7 facilitates installation, as it is difficult to directly install the mounting base onto the piston rod.

[0028] like Figure 6 As shown, the left and right brake blocks are connected together by a connecting rod 7-6. The brake cylinder 7-4 is driven by the connecting rod 7-6, realizing single-point double-action of the brake cylinder 7-4 and controlling the opening and closing of the brake mechanism 7-2.

[0029] After the mold is closed, the brake cylinder 7-4 drives the brake mechanism 7-2, and the left and right brake blocks in the brake mechanism 7-2 tighten. The helical teeth engage with the helical teeth on the main locking rod 7-3. After confirming that the engagement is in place, the piston rod of the locking cylinder 7-1 extends and presses the upper template 4 through the brake mechanism 7-2 and the main locking rod 7-3.

[0030] When the mold is opened, the locking cylinder 7-1 is depressurized, the brake cylinder 7-4 drives the brake mechanism 7-2, the left and right brake blocks in the brake mechanism 7-2 open, and the piston rod of the hydraulic cylinder 1 retracts.

[0031] The aluminum alloy differential pressure casting machine has advantages such as no wear caused by sliding friction; it can adapt to different locking heights caused by thermal expansion and processing errors in different molds and crucibles; and it is not prone to jamming. At the same time, the new structure of the aluminum alloy differential pressure casting machine adopts a hydraulic cylinder 1 with an intermediate flange, which can adapt to molds of different heights without the need for complex mechanical modifications.

[0032] The above embodiments are only for illustrating the technical concept of this utility model and should not be used to limit the protection scope of this utility model. Any modifications made to the technical solution based on the technical concept proposed by this utility model shall fall within the protection scope of this utility model.

Claims

1. A vertical aluminum alloy differential pressure casting machine employing a hydraulic holding brake main locking mechanism, characterized in that: Includes hydraulic cylinders, fixed platform, demolding and material ejection mechanism, upper template, guide columns, lower template, hydraulic brake main locking mechanism, and material receiving mechanism; Hydraulic cylinders and guide columns are installed on the fixed platform, demolding and material ejection mechanism is installed on the upper template, the upper and lower templates are arranged vertically, the material receiving mechanism is installed on the side of the upper template, and the hydraulic brake main locking mechanism is installed between the fixed platform and the upper template. The hydraulic brake main locking mechanism includes a locking cylinder, a main locking rod, a brake mechanism, and a brake cylinder. The locking cylinder is mounted on the fixed platform of the differential pressure casting machine, and the main locking rod is mounted on the upper template. The locking cylinder includes a piston rod, and the brake mechanism is mounted on the piston rod of the locking cylinder. The brake mechanism is driven by the brake cylinder. The brake mechanism includes left and right brake blocks, each brake block having a first helical tooth. The main locking rod has a second helical tooth that engages with the helical teeth of the left and right brake blocks.

2. The vertical aluminum alloy differential pressure casting machine with a hydraulic brake main locking mechanism according to claim 1, characterized in that: The preferred angles for the first and second helical teeth are upward tilting at 40-50°.

3. The vertical aluminum alloy differential pressure casting machine with a hydraulic brake main locking mechanism according to claim 1, characterized in that: Each helical tooth is 20 or 25 mm long, and is adapted to the opening and closing mold cylinder.

4. The vertical aluminum alloy differential pressure casting machine with a hydraulic brake main locking mechanism according to claim 1, characterized in that: The piston rod end face of the locking cylinder is equipped with an M12 threaded hole. The brake mechanism also includes a mounting base, with left and right brake blocks installed in the mounting base. A transition plate is provided to connect the piston rod of the locking cylinder and the mounting base.

5. The vertical aluminum alloy differential pressure casting machine with a hydraulic brake main locking mechanism according to any one of claims 1 to 4, characterized in that: The left and right brake blocks are connected together by a connecting rod, and the brake cylinder is driven by the connecting rod to realize the opening and closing of the brake mechanism.

6. The vertical aluminum alloy differential pressure casting machine with a hydraulic brake main locking mechanism according to claim 5, characterized in that: The stroke of the locking cylinder is greater than one tooth length but less than two tooth lengths.

7. The vertical aluminum alloy differential pressure casting machine with a hydraulic brake main locking mechanism according to claim 1, characterized in that: The outer surface of the main lock bar is plated with hard chrome, with a plating thickness of 0.04-0.08mm.

8. The vertical aluminum alloy differential pressure casting machine with a hydraulic brake main locking mechanism according to claim 1, characterized in that: The hydraulic brake main locking mechanism has at least four locks.

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