A casting mold for a bow piece of an automobile shock absorber

Abstract

This utility model relates to a casting mold for an arc-shaped component of an automotive shock absorber, comprising a feed block, a positioning block located behind the feed block and cooperating with it, a base plate located behind the positioning block, and a ejector mechanism located between the base plate and the positioning block; it also includes a movable core block embedded inside the rear side of the feed block and a positioning core block embedded inside the front side of the positioning block and cooperating with it; two side core-pulling assemblies are also provided between the feed block and the positioning block, which are respectively distributed vertically. The side core-pulling assembly includes a slider movably connected to the front side of the positioning block to enable left and right translation and located to the right of the positioning core block, a hydraulic cylinder fixed to the right outer wall of the positioning block, and a side forming block fixed to the left outer wall of the slider; this utility model simplifies the structure and reduces processing and manufacturing steps while ensuring easy demolding, and can process two arc-shaped components simultaneously in a single casting process, thereby improving production efficiency.

Description

Technical Field

[0001] This utility model relates to a casting mold for an arc-shaped component of an automotive shock absorber. Background Technology

[0002] The bow-shaped component in a car shock absorber is an important part of the car suspension system. It is mainly used to reduce the vibration of the frame and body, improve driving comfort and safety. When the vehicle goes over bumpy road sections, the bow shock absorber works in conjunction with the air spring to convert the impact into heat energy and absorb it, preventing the vibration from being transmitted to the tires, suspension and other components, thus extending the service life.

[0003] Because aluminum bow-shaped components can reduce weight and save energy, improve handling performance, and have high strength and corrosion resistance, more and more high-end cars are using aluminum bow-shaped components. Aluminum bow-shaped components are produced with the help of matching casting molds and casting equipment. Most existing casting molds for aluminum bow-shaped components have the parting surface set at the opening of the bow-shaped component. Although this facilitates demolding, a core-pulling mechanism must be added to the moving module to complete the internal shape forming. This results in a relatively complex structure of the moving module, more complicated processing and manufacturing steps, and only one bow-shaped component can be produced in a single casting, so the production efficiency is also low and needs further improvement. Utility Model Content

[0004] In view of the current state of the prior art, the technical problem to be solved by this utility model is to provide a casting mold for the bow-shaped part of an automobile shock absorber that simplifies the structure, reduces processing and manufacturing steps, and improves production efficiency while ensuring easy demolding.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a casting mold for an arc-shaped component of an automotive shock absorber, comprising a feeding block, a positioning block disposed behind the feeding block and cooperating with the feeding block, a base plate disposed on the rear side of the positioning block, and a ejector mechanism disposed between the base plate and the positioning block, characterized in that: It also includes a movable core block embedded in the rear side of the feed block and a positioning core block embedded in the front side of the positioning block and cooperating with the movable core block. The end face of the movable core block has two U-shaped grooves that are respectively distributed vertically. A positioning groove is provided between the right inner wall of each U-shaped groove and the right outer wall of the movable core block. Correspondingly, the right edge of the end face of the positioning core block has two positioning notches that are respectively distributed vertically. Two side core-pulling assemblies are also provided between the feeding block and the positioning block, which are respectively distributed vertically. The side core-pulling assembly includes a slider that is movably connected to the front side of the positioning block to have the function of left and right translation and is located to the right of the positioning core block, a hydraulic cylinder fixed on the outer wall of the right side of the positioning block, and a side forming block fixed on the outer wall of the left side of the slider. The telescopic end of the hydraulic cylinder is set horizontally to the left and fixed on the slider. On the left outer wall of the side-forming block, a first cavity block and a second cavity block are formed respectively in the direction of the positioning core block, and a connecting block is formed between the first cavity block and the second cavity block.

[0006] Preferably, the first cavity block on the side forming block of the two side core pulling assemblies respectively cooperates with the two positioning grooves on the movable core block, and the second cavity block on the side forming block of the two side core pulling assemblies respectively cooperates with the two positioning notches on the positioning core block.

[0007] Preferably, a U-shaped forming block is formed between the bottom surface of each U-shaped sink and the inner walls of the upper and lower sides. Correspondingly, a forming groove is formed on the inner walls of the upper and lower sides of each positioning notch. The two forming grooves in each positioning notch cooperate with the upper and lower ends of the opening of the U-shaped forming block in the corresponding U-shaped sink.

[0008] Preferably, the end of the first cavity block is formed with a shaped inclined surface, and multiple T-shaped protrusions are formed outwardly on the outer wall of the connecting block facing the positioning core block from top to bottom.

[0009] Preferably, a U-shaped protrusion is formed outward on the rear outer wall of the second cavity block, and multiple ribs are formed on the upper and lower outer walls of the connecting block, arranged sequentially from front to back.

[0010] Preferably, a trapezoidal protrusion is formed outward on the bottom surface of each of the molding grooves, and the ends of the two trapezoidal protrusions on each molding groove respectively cooperate with the upper and lower ends of the opening of the U-shaped molding block in the corresponding U-shaped groove.

[0011] Preferably, each trapezoidal protrusion has a conical countersunk hole at its end. The inner diameter of the opening of the conical countersunk hole is larger than its bottom inner diameter. The upper and lower inner walls of each conical countersunk hole intersect and communicate with the upper and lower outer walls of the trapezoidal protrusion to which it is located.

[0012] Preferably, each of the U-shaped forming blocks has a horizontally distributed core post inserted and fixed at both ends of the opening and at the bottom center of each conical countersunk hole, and the end of each core post on the U-shaped forming block cooperates with the end of a corresponding core post in the conical countersunk hole.

[0013] Compared with the prior art, the advantages of this utility model are as follows: This utility model rotates the position of the bow-shaped part by 90 degrees so that the opening of the bow-shaped part faces the side and is perpendicular to the parting surface. At the same time, a side core-pulling assembly is set on the side to complete the internal shape forming of the bow-shaped part. Thus, the structure is simplified and the processing and manufacturing steps are reduced while ensuring easy demolding. Moreover, two side core-pulling assemblies are set up using the saved space, so that two bow-shaped parts can be processed simultaneously in a single casting process, thereby improving production efficiency. Attached Figure Description

[0014] The above and other features, advantages, and aspects of the embodiments of this application will become more apparent when taken in conjunction with the accompanying drawings and the following detailed description; throughout the drawings, the same or similar reference numerals denote the same or similar elements; it should be understood that the drawings are schematic, and the originals and elements are not necessarily drawn to scale; in the drawings: Figure 1 This is an exploded view of the right front side of this utility model; Figure 2 This is a structural diagram of the left rear side of the movable core block of this utility model; Figure 3 This is an exploded view of the right front side of the positioning core block and side core pulling assembly of this utility model. Figure 4 This is a structural diagram of the right rear side of the side core-pulling assembly of this utility model. Detailed Implementation

[0015] Unless otherwise defined, the technical or scientific terms used in this utility model shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0016] To keep the following description of the embodiments of this utility model clear and concise, detailed descriptions of known functions and known components are omitted.

[0017] like Figures 1-4As shown, a casting mold for an automobile shock absorber bow-shaped component includes a feed block 1, a positioning block 2 located behind the feed block 1 and cooperating with the feed block 1, a base plate 3 located on the rear side of the positioning block 2, and a top-ejection mechanism 4 located between the base plate 3 and the positioning block 2. It also includes a movable core block 5 embedded in the rear side of the feed block 1 and a positioning core block 6 embedded in the front side of the positioning block 2 and cooperating with the movable core block 5. Two U-shaped grooves 51 are respectively distributed vertically on the end face of the movable core block 5. A positioning groove 52 is provided between the right inner wall of each U-shaped groove 51 and the right outer wall of the movable core block 5. Correspondingly, two positioning notches 61 are respectively distributed vertically on the right edge of the end face of the positioning core block 6. Two side core-pulling assemblies 7 are also provided between the feeding block 1 and the positioning block 2, which are respectively distributed vertically. The side core-pulling assembly 7 includes a slider 71 that is movably connected to the front side of the positioning block 2 to have the function of left and right translation and is located to the right of the positioning core block 6, a hydraulic cylinder 72 fixed on the outer wall of the right side of the positioning block 2, and a side forming block 73 fixed on the outer wall of the left side of the slider 71. The telescopic end of the hydraulic cylinder 72 is set horizontally to the left and fixed on the slider 71. On the left outer wall of the side forming block 73, a first cavity block 731 and a second cavity block 732 are formed in the direction of the positioning core block 6, respectively arranged in front and behind. A connecting block 733 is also formed between the first cavity block 731 and the second cavity block 732.

[0018] The first cavity block 731 on the side forming block 73 of the two side core pulling assemblies 7 respectively cooperates with the two positioning grooves 52 on the movable core block 5, and the second cavity block 732 on the side forming block 73 of the two side core pulling assemblies 7 respectively cooperates with the two positioning notches 61 on the positioning core block 6.

[0019] Each U-shaped groove 51 has a U-shaped forming block 53 formed between its bottom surface and the inner walls of its upper and lower sides. Correspondingly, each positioning notch 61 has a symmetrically distributed forming groove 62 on the inner walls of its upper and lower sides. The two forming grooves 62 in each positioning notch 61 are matched with the upper and lower ends of the opening of the U-shaped forming block 53 in the corresponding U-shaped groove 51.

[0020] The end of the first cavity block 731 has a shaped inclined surface 734, and multiple T-shaped protrusions 735 are formed outward on the outer wall of the connecting block 733 facing the positioning core block 6.

[0021] A U-shaped protrusion 737 is formed outward on the rear outer wall of the second cavity block 732, and multiple ribs 736 are formed on the upper and lower outer walls of the connecting block 733, arranged sequentially from front to back.

[0022] Each molding groove 62 has a trapezoidal protrusion 63 formed outward on its bottom surface. The ends of the two trapezoidal protrusions 63 on each molding groove 62 respectively cooperate with the upper and lower ends of the opening of the U-shaped molding block 53 in the corresponding U-shaped groove 51.

[0023] Each trapezoidal protrusion 63 has a conical countersunk hole 64 at its end. The inner diameter of the opening of the conical countersunk hole 64 is larger than its bottom inner diameter. The upper and lower inner walls of each conical countersunk hole 64 intersect and connect with the upper and lower outer walls of the trapezoidal protrusion 63 to which it is located.

[0024] Each U-shaped forming block 53 has a horizontally distributed core post 8 inserted and fixed at both ends of the opening and at the bottom center of each conical countersunk hole 64. The end of each core post 8 on the U-shaped forming block 53 is engaged with the end of a corresponding core post 8 in the conical countersunk hole 64.

[0025] On the inner wall of the U-shaped forming block 53, a plurality of U-shaped ribs 55 are formed in sequence from left to right. A partition groove 552 is provided in the middle of the rightmost U-shaped rib 55. Correspondingly, an extension block 551 located inside the partition groove 552 is formed outward from the middle of the second U-shaped rib 55 from right to left.

[0026] A stepped notch 54 is provided on the left edge of the opening of the U-shaped sink 51.

[0027] Working principle: The feed block 1 and the base plate 3 are respectively installed into the moving mechanism and the fixed base in the aluminum die-casting equipment; then the moving mechanism is operated to drive the feed block 1 to move backward until the rear outer wall of the feed block 1 is in contact with the front outer wall of the positioning block 2 (existing technology). At this time, the end face of the moving core block 5 is in contact with the end face of the positioning core block 6, so that the openings of the two positioning grooves 52 on the moving core block 5 are in contact with the openings of the two positioning notches 61 on the positioning core block 6.

[0028] Next, the telescopic ends of the cylinders 72 in both side core-pulling assemblies 7 are simultaneously driven to extend outwards, thereby causing both sliders 71 to move to the left, which in turn causes the first cavity block 731 on each side molding block 73 to insert into a corresponding positioning groove 52, and at the same time causes the second cavity block 732 on each side molding block 73 to insert into a corresponding positioning notch 61; at this time, the connecting block 733 extends between the two molding grooves 62.

[0029] Molten aluminum is injected through a gate in the feed block 1 and a sprue on the positioning block 2 into the bottom of the positioning notch 61 and between the two forming grooves 62 and a corresponding U-shaped forming block 53. After cooling, two shock absorber bow-shaped parts are formed.

[0030] After molding is completed, the extension and retraction ends of the cylinders 72 in the two side core-pulling assemblies 7 are first driven to retract inward so that each side molding block 73 is reversed and reset. Then, the moving mechanism is controlled to drive the feeding block 1 to move forward, thereby causing the end face of the moving core block 5 to separate from the end face of the positioning core block 6. Finally, the two formed shock absorber bow-shaped parts are pushed forward by the ejector mechanism 4.

[0031] This invention rotates the position of the bow-shaped part by 90 degrees so that the opening of the bow-shaped part faces the side and is perpendicular to the parting surface. At the same time, a side core-pulling assembly 7 is provided on the side to complete the internal shape forming of the bow-shaped part. This simplifies the structure and reduces the processing and manufacturing steps while ensuring easy demolding. Moreover, by using the space saved, two side core-pulling assemblies 7 are set up, so that two bow-shaped parts can be processed simultaneously in a single casting process, thereby improving production efficiency.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A casting mold for an arc-shaped component of an automotive shock absorber, comprising a feed block, a positioning block disposed behind the feed block and cooperating with the feed block, a base plate disposed behind the positioning block, and a ejector mechanism disposed between the base plate and the positioning block, characterized in that: It also includes a movable core block embedded in the rear side of the feed block and a positioning core block embedded in the front side of the positioning block and cooperating with the movable core block. The end face of the movable core block has two U-shaped grooves that are respectively distributed vertically. A positioning groove is provided between the right inner wall of each U-shaped groove and the right outer wall of the movable core block. Correspondingly, the right edge of the end face of the positioning core block has two positioning notches that are respectively distributed vertically. Two side core-pulling assemblies are also provided between the feeding block and the positioning block, which are respectively distributed vertically. The side core-pulling assembly includes a slider that is movably connected to the front side of the positioning block to have the function of left and right translation and is located to the right of the positioning core block, a hydraulic cylinder fixed on the outer wall of the right side of the positioning block, and a side forming block fixed on the outer wall of the left side of the slider. The telescopic end of the hydraulic cylinder is set horizontally to the left and fixed on the slider. On the left outer wall of the side-forming block, a first cavity block and a second cavity block are formed respectively in the direction of the positioning core block, and a connecting block is formed between the first cavity block and the second cavity block.

2. The casting mold for the bow-shaped component of an automotive shock absorber according to claim 1, characterized in that, The first cavity block on the side forming block of the two side core pulling assemblies respectively cooperates with the two positioning grooves on the moving core block, and the second cavity block on the side forming block of the two side core pulling assemblies respectively cooperates with the two positioning notches on the positioning core block.

3. The casting mold for the bow-shaped component of an automotive shock absorber according to claim 1, characterized in that, Each U-shaped sink has a U-shaped forming block formed between its bottom surface and the inner walls of its upper and lower sides. Correspondingly, each positioning notch has a symmetrically distributed forming groove on the inner walls of its upper and lower sides. The two forming grooves in each positioning notch cooperate with the upper and lower ends of the opening of the U-shaped forming block in the corresponding U-shaped sink.

4. The casting mold for the bow-shaped component of an automotive shock absorber according to claim 1, characterized in that, The end of the first cavity block has a shaped inclined surface, and multiple T-shaped protrusions are formed outward from top to bottom on the outer wall of the connecting block facing the positioning core block.

5. The casting mold for the bow-shaped component of an automotive shock absorber according to claim 1, characterized in that, The second cavity block also has a U-shaped protrusion formed outward on the rear outer wall, and multiple ribs are formed on the upper and lower outer walls of the connecting block, arranged sequentially from front to back.

6. The casting mold for the bow-shaped component of an automotive shock absorber according to claim 3, characterized in that, Each of the molding grooves has a trapezoidal protrusion formed outward on its bottom surface. The ends of the two trapezoidal protrusions on each molding groove respectively cooperate with the upper and lower ends of the opening of the U-shaped molding block in the corresponding U-shaped groove.

7. A casting mold for an arc-shaped component of an automotive shock absorber according to claim 6, characterized in that, Each trapezoidal protrusion has a conical countersunk hole at its end. The inner diameter of the opening of the conical countersunk hole is larger than its bottom inner diameter. The upper and lower inner walls of each conical countersunk hole intersect and communicate with the upper and lower outer walls of the trapezoidal protrusion to which it belongs.

8. A casting mold for an arc-shaped component of an automotive shock absorber according to claim 7, characterized in that, Each of the U-shaped forming blocks has a horizontally distributed core post inserted and fixed at both ends of the opening and at the bottom center of each conical countersunk hole. The end of each core post on the U-shaped forming block is engaged with the end of a corresponding core post in the conical countersunk hole.

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