Aluminum alloy gravity casting equipment

Abstract

The utility model belongs to the technical field of aluminum alloy casting, and particularly relates to aluminum alloy gravity casting equipment which comprises a gravity casting machine and a mold, the bottom of the gravity casting machine is fixedly connected with a turnover mechanism, the turnover mechanism comprises an upper cover and a base, and a hydraulic jack is connected between the upper cover and the base. The lower surface of the upper cover is rotationally connected with a piston rod of the hydraulic jack, and the bottom of the hydraulic jack is rotationally connected with the bottom of the base. A plurality of cylindrical first rotating shafts are fixedly connected to the side edge of the upper cover, a plurality of grooves are formed in the upper surface of the base, the first rotating shafts correspond to the grooves one to one, the first rotating shafts are detachably and rotationally connected into the grooves, and when different first rotating shafts are rotationally matched with the grooves, the hydraulic jacks stretch out and draw back to drive the upper cover to rotate around the first rotating shafts; and therefore, the gravity casting machine and the mold are inclined in different directions. The molten aluminum in the mold can flow in the inclined direction under the influence of the gravity effect, and different parts of the mold cavity are filled, so that the casting effect is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of aluminum alloy casting, and particularly relates to aluminum alloy gravity casting equipment. Background Art

[0002] Aluminum alloy gravity casting is a process whereby molten aluminum is poured into a mold cavity under the influence of gravity to produce a casting. Whether the molten aluminum fills the mold cavity completely is crucial to whether the casting can achieve a complete shape and clear outline.

[0003] At present, a variety of devices for metal casting have been proposed in the prior art. For example, a tiltable gravity casting machine is proposed in Chinese utility model patent publication number CN212168936U. By setting a rotator, the casting box can be tilted at a certain angle, so that the aluminum liquid can be better filled.

[0004] However, the casting box of the device can only rotate forward or reverse in a fixed direction. For aluminum alloy parts with complex structures, this design still cannot meet the use requirements. Utility Model Content

[0005] The purpose of the utility model is to provide an aluminum alloy gravity casting device that can be tilted in multiple directions, so that the aluminum liquid can be quickly filled in different directions to solve the problems raised in the above background technology.

[0006] In order to achieve the above technical objectives, the technical solution of the utility model is:

[0007] An aluminum alloy gravity casting device includes a gravity casting machine and a mold mounted on the gravity casting machine. The bottom of the gravity casting machine is fixedly connected to a turnover mechanism, which includes an upper cover and a base. A hydraulic jack is connected between the upper cover and the base. The lower surface of the upper cover is rotatably connected to the piston rod of the hydraulic jack, and the bottom of the hydraulic jack is rotatably connected to the bottom of the base.

[0008] The side of the upper cover is fixedly connected to a plurality of cylindrical first rotating shafts, and the upper surface of the base is provided with a plurality of grooves. The first rotating shafts are arranged in a one-to-one correspondence with the grooves, and the first rotating shafts are detachably rotatably connected to the grooves. When different first rotating shafts rotate and cooperate with the grooves, the hydraulic top can drive the upper cover to rotate around the first rotating shaft through expansion and contraction.

[0009] As a further improvement, the groove includes an upper groove section and a lower groove section, the cross section of the upper groove section is rectangular, the width of the inner wall of the upper groove section matches the diameter of the first rotating shaft, and the depth of the upper groove section matches the radius of the first rotating shaft;

[0010] The cross section of the lower groove section is semicircular, the radius of the inner wall of the lower groove section matches the radius of the first rotating shaft, and the upper groove section is smoothly and fixedly connected to the lower groove section.

[0011] As a further improvement, a clamping mechanism is provided on the base, which includes a first baffle, which is fixedly connected to the upper surface of the base, a slot hole is provided through the side of the first baffle, the lower surface of the slot hole is flush with the upper surface of the groove, and a second baffle is provided for sliding in the slot hole. When the second baffle penetrates into the slot hole and exceeds the edge of the inner wall of the slot hole, the second baffle limits the separation of the first rotating shaft from the groove.

[0012] As a further improvement, the cross-section of the upper cover is rectangular, and the two ends of the first rotating shaft are fixedly connected to the upper cover through support arms. The support arms extend outward perpendicular to the edge of the corresponding upper cover and exceed the edge of the upper cover. The first rotating shaft is arranged parallel to the corresponding side of the upper cover.

[0013] As a further improvement, blocks are fixed at both ends of the groove, and a channel for accommodating the support arm is left between the block and the end of the groove. When the first rotating shaft rotates with the groove, the block can limit the axial displacement of the first rotating shaft.

[0014] As a further improvement, the piston rod is connected to the lower surface of the upper cover via a first cross shaft, the first cross shaft includes a second rotating shaft and a third rotating shaft vertically fixedly connected to the second rotating shaft, and the second rotating shaft is arranged parallel to the two first rotating shafts opposite to the upper cover;

[0015] The bottom of the hydraulic jack is connected to the bottom of the base through a second cross axis. The second cross axis includes a fourth rotating shaft and a fifth rotating shaft vertically fixedly connected to the fourth rotating shaft. The fourth rotating shaft is arranged parallel to the second rotating shaft.

[0016] As a further improvement, the gravity casting machine includes a base and a guide rod vertically fixedly connected to the base, the mold includes an upper template and a lower template, the lower template is connected to the base through fasteners, and the upper template is slidably connected to the guide rod.

[0017] Due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0018] By setting multiple first rotating shafts and grooves, the upper cover can be rotated around different first rotating shafts, and the gravity casting machine and the mold fixedly connected to the upper cover can be tilted in different directions. The aluminum liquid can flow in different directions in a short time and fill the mold cavity to meet the casting needs of aluminum alloy parts with complex structures. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a structural diagram of the groove of the utility model;

[0021] Figure 3It is a structural schematic diagram of the upper cover of the utility model;

[0022] Figure 4 It is a structural diagram of the compacting mechanism of the utility model;

[0023] Figure 5 This is an assembly drawing of the hydraulic jack, the first cross shaft and the second cross shaft of the utility model;

[0024] Figure 6 This is a structural diagram of the gravity casting machine of the utility model;

[0025] Among them: 1- gravity casting machine, 101- base, 102- guide rod, 2- mold, 201- upper template, 202- lower template, 3- flip mechanism, 301- upper cover, 302- base, 303- hydraulic top, 304- first rotating shaft, 3041- support arm, 305- groove, 3051- upper groove section, 3052- lower groove section, 3053- stopper, 306- pressing mechanism, 3061- first baffle, 3062- second baffle, 3063- cylinder, 307- first cross axis, 3071- second rotating shaft, 3072- third rotating shaft, 308- second cross axis, 3081- fourth rotating shaft, 3082- fifth rotating shaft. DETAILED DESCRIPTION

[0026] To make the objectives, technical solutions, and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are schematic, not physical, representations. They should not be construed as limiting the present invention. To better illustrate the embodiments of the present invention, some components in the accompanying drawings may be omitted, enlarged, or reduced, and do not represent the dimensions of the actual product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted from the accompanying drawings.

[0027] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "up", "down", "left", "right", etc. indicate directions or positional relationships, they are based on the directions or positional relationships shown in the drawings. This is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting the present application. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0028] like Figure 1-6As shown, an aluminum alloy gravity casting device includes a gravity casting machine 1 and a mold 2 mounted on the gravity casting machine 1. The bottom of the gravity casting machine 1 is fixedly connected to a turnover mechanism 3. The turnover mechanism 3 includes an upper cover 301 and a base 302. A hydraulic jack 303 is connected between the upper cover 301 and the base 302. The lower surface of the upper cover 301 is rotatably connected to the piston rod of the hydraulic jack 303. The bottom of the hydraulic jack 303 is rotatably connected to the bottom of the base 302.

[0029] A plurality of cylindrical first rotating shafts 304 are fixedly connected to the side of the upper cover 3011, and a plurality of grooves 305 are provided on the upper surface of the base 302. The first rotating shafts 304 are arranged in a one-to-one correspondence with the grooves 305. The first rotating shafts 304 are detachably rotatably connected to the grooves 305. When different first rotating shafts 304 rotate and cooperate with the grooves 305, the hydraulic jack 303 can be extended and retracted to drive the upper cover 301 to rotate around the first rotating shafts 304, thereby causing the gravity casting machine 1 and the mold 2 to tilt in different directions.

[0030] In this embodiment, the groove 305 includes an upper groove section 3051 and a lower groove section 3052. The cross section of the upper groove section 3051 is rectangular. The width of the inner wall of the upper groove section 3051 matches the diameter of the first rotating shaft 304, and the depth of the upper groove section 3051 matches the radius of the first rotating shaft 304.

[0031] The cross section of the lower groove section 3052 is semicircular, the radius of the inner wall of the lower groove section 3052 matches the radius of the first rotating shaft 304 , and the upper groove section 3051 and the lower groove section 3052 are smoothly and fixedly connected.

[0032] In this embodiment, a clamping mechanism 306 is provided on the base 302, and the clamping mechanism 306 includes a first baffle 3061, which is fixedly connected to the upper surface of the base 302. A slot is provided through the side of the first baffle 3061, and the lower surface of the slot is flush with the upper surface of the groove 305. A second baffle 3062 is slidingly provided in the slot. When the second baffle 3062 penetrates into the slot and exceeds the edge of the inner wall of the slot, the second baffle 3062 limits the separation of the first rotating shaft 304 and the groove 305.

[0033] In this embodiment, the cross-section of the upper cover 301 is rectangular, and the two ends of the first rotating shaft 304 are fixedly connected to the upper cover 301 through support arms 3041. The support arms 3041 extend outward perpendicular to the edge of the corresponding upper cover 301 and exceed the edge of the upper cover 301. The first rotating shaft 304 is arranged parallel to the side of the corresponding upper cover 301.

[0034] In this embodiment, a stopper 3053 is fixed at both ends of the groove 305, and a channel for accommodating the support arm 3041 is left between the stopper 3053 and the end of the groove 305. When the first rotating shaft 304 rotates with the groove 305, the stopper 3053 can limit the axial displacement of the first rotating shaft 304.

[0035] In this embodiment, the piston rod is connected to the lower surface of the upper cover 301 via a first cross shaft 307. The first cross shaft 307 includes a second rotating shaft 3071 and a third rotating shaft 3072 vertically fixedly connected to the second rotating shaft 3071. The second rotating shaft 3071 is arranged parallel to the two first rotating shafts 304 opposite to the upper cover 301.

[0036] The bottom of the hydraulic jack 303 is connected to the bottom of the base 302 via a second cross axis 308 . The second cross axis 308 includes a fourth rotating shaft 3081 and a fifth rotating shaft 3082 vertically fixedly connected to the fourth rotating shaft 3081 . The fourth rotating shaft 3081 is arranged parallel to the second rotating shaft 3071 .

[0037] In this embodiment, the gravity casting machine 1 includes a base 101 and a guide rod 102 vertically fixedly connected to the base 101. The mold 2 includes an upper template 201 and a lower template 202. The lower template 202 is connected to the base 101 through fasteners, and the upper template 201 is slidably connected to the guide rod 102.

[0038] When using this embodiment, the order, speed, and angle of the axis flipping of the upper cover 301 must be determined in advance based on the structural characteristics of the aluminum alloy casting. After the molten aluminum is injected into the mold 2, the flipping mechanism 3 is activated. The flipping mechanism 3 controls the upper cover 301 to rotate around different first rotation axes 304 according to the pre-set parameters. At the same time, the gravity casting machine 1 and the mold 2 are tilted in different directions so that the molten aluminum can fully fill different parts of the mold cavity 2, achieving a better casting effect. The specific implementation method is as follows:

[0039] When the upper cover 301 rotates about a first axis 304, the second baffle 3062 corresponding to that axis 304 moves forward under the force of the cylinder 3063, sealing the upper opening of the groove 305 (this is the closed state). Meanwhile, the remaining second baffles 3062, driven by the cylinder 3063, move backward, releasing the upper opening of the groove 305 (this is the open state). When the hydraulic jack 303 is extended or retracted, the upper cover 301 can rotate about a first axis 304. To change the rotation direction of the upper cover 301, simply switch the closed or open positions of different second baffles 3062.

[0040] After the turning mechanism 3 finishes operating, the hydraulic jack 303 gradually retracts until the upper cover 301 is horizontal. The hydraulic structure of the gravity casting machine 1 drives the upper platen 201 to move vertically upward, separating the upper platen 201 from the lower platen 202. After the operator removes the formed aluminum alloy casting from the mold 2, the upper platen 201 moves vertically downward to the appropriate position, and the next casting operation can be carried out.

[0041] The specific embodiments of the present invention described above do not limit the scope of protection of the present invention. Any other corresponding changes and modifications made based on the technical concept of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. An aluminum alloy gravity casting equipment, comprising a gravity casting machine and a mold installed on the gravity casting machine, characterized in that: The bottom of the gravity casting machine is fixedly connected to a turning mechanism, which includes an upper cover and a base. A hydraulic jack is connected between the upper cover and the base. The lower surface of the upper cover is rotatably connected to the piston rod of the hydraulic jack, and the bottom of the hydraulic jack is rotatably connected to the bottom of the base. The side of the upper cover is fixedly connected to a plurality of cylindrical first rotating shafts, and the upper surface of the base is provided with a plurality of grooves. The first rotating shafts are arranged in a one-to-one correspondence with the grooves, and the first rotating shafts are detachably rotatably connected to the grooves. When different first rotating shafts are rotated and matched with the grooves, the hydraulic top can be extended and retracted to drive the upper cover to rotate around the first rotating shaft.

2. The aluminum alloy gravity casting equipment according to claim 1, characterized in that: The groove includes an upper groove section and a lower groove section, the cross section of the upper groove section is rectangular, the width of the inner wall of the upper groove section matches the diameter of the first rotating shaft, and the depth of the upper groove section matches the radius of the first rotating shaft; The cross section of the lower groove section is semicircular, the radius of the inner wall of the lower groove section matches the radius of the first rotating shaft, and the upper groove section is smoothly and fixedly connected to the lower groove section.

3. The aluminum alloy gravity casting equipment according to claim 2, characterized in that: A clamping mechanism is provided on the base, and the clamping mechanism includes a first baffle, which is fixedly connected to the upper surface of the base, a slot hole is passed through the side of the first baffle, and the lower surface of the slot hole is flush with the upper surface of the groove, and a second baffle is slidably provided in the slot hole. When the second baffle penetrates into the slot hole and exceeds the edge of the inner wall of the slot hole, the second baffle limits the separation of the first rotating shaft from the groove.

4. The aluminum alloy gravity casting equipment according to claim 1, characterized in that: The cross-section of the upper cover is rectangular, and the two ends of the first rotating shaft are fixedly connected to the upper cover through support arms. The support arms extend outward perpendicular to the edge of the corresponding upper cover and exceed the edge of the upper cover. The first rotating shaft is arranged parallel to the corresponding side of the upper cover.

5. The aluminum alloy gravity casting equipment according to claim 4, characterized in that: Stoppers are fixedly provided at both ends of the groove, and a channel for accommodating the support arm is reserved between the stoppers and the ends of the groove. When the first rotating shaft rotates and cooperates with the groove, the stoppers can limit the axial displacement of the first rotating shaft.

6. The aluminum alloy gravity casting equipment according to claim 1, characterized in that: The piston rod is connected to the lower surface of the upper cover via a first cross shaft, the first cross shaft including a second rotating shaft and a third rotating shaft vertically fixedly connected to the second rotating shaft, the second rotating shaft being arranged parallel to the two first rotating shafts opposite to the upper cover; The bottom of the hydraulic jack is connected to the bottom of the base through a second cross axis. The second cross axis includes a fourth rotating shaft and a fifth rotating shaft vertically fixedly connected to the fourth rotating shaft. The fourth rotating shaft is arranged parallel to the second rotating shaft.

7. The aluminum alloy gravity casting equipment according to claim 1, characterized in that: The gravity casting machine includes a base and a guide rod vertically fixedly connected to the base. The mold includes an upper template and a lower template. The lower template is connected to the base through a fastener, and the upper template is slidably connected to the guide rod.

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