Forming die for right shell of automobile shock absorber

Abstract

The utility model relates to a forming die of automobile shock absorber right -hand shell, including mutually cooperate and respectively before and after setting's dynamic pressure piece and load module, and respectively embedding in dynamic pressure piece rear side inside and load module front side inside and mutually cooperate's die block and forming block, still include the die block board of being located in load module rear side and the push -out device of being located between die block board and load module, the end face of die block forms the limit bump to the direction of forming block, correspondingly, the end face of forming block is equipped with the limit die cavity that cooperates with limit bump, still be equipped with respectively up and down distribution's ear seat forming mechanism and horn mouth forming mechanism between dynamic pressure piece and load module, the utility model greatly reduces the material consumption for making the die to reduce the manufacturing cost, while reducing the debugging difficulty and simplifying the processing and manufacturing step from the whole.

Description

Technical Field

[0001] This utility model relates to a molding die for the right housing of an automotive shock absorber. Background Technology

[0002] The shock absorber housing is the external protective structure of the shock absorber in the suspension system. It is divided into left housing and right housing according to the position of the wheel axle on the left and right sides. Its function is to wrap the internal damper, piston rod and other precision components to prevent dust and moisture from entering. It also has the function of transmitting the damping force generated by the shock absorber through the rigid structure to maintain the geometric stability of the suspension.

[0003] Because aluminum shock absorber housings can withstand high-frequency vibrations and impact loads, and are also corrosion-resistant and have a long service life, more and more high-end cars are using aluminum shock absorber housings. Like other aluminum parts, aluminum shock absorber housings are also produced using matching casting molds and casting equipment.

[0004] Most existing casting molds for the right housing of shock absorbers have the parting surface set on the horizontal section in the middle of the right housing. Although the forming of the flared mouth and ear seat on the right housing can be automatically completed by the fixed mold core and the moving mold core during the mold closing and opening processes, the height of the right housing is greater than its thickness. Therefore, the fixed mold core and the moving mold core must be thicker in order to cover the right housing, which greatly increases the amount of material used to make the mold and thus makes the mold manufacturing cost higher. In addition, the material-saving cavities located on both sides of the right housing must be formed with the help of two sets of passive core-pulling components, which is difficult to debug and the processing and manufacturing steps are relatively complicated, requiring further improvement. Utility Model Content

[0005] In view of the current state of the prior art, the technical problem to be solved by this utility model is to provide a molding mold for the right housing of an automobile shock absorber that greatly reduces the amount of material used to make the mold, thereby reducing the manufacturing cost, while reducing the overall debugging difficulty and simplifying the processing and manufacturing steps.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problem is as follows: a molding die for the right housing of an automobile shock absorber, comprising a dynamic pressure block and a carrier module that cooperate with each other and are respectively arranged front and rear, and a mold core block and a molding block that are respectively embedded in the rear side of the dynamic pressure block and the front side of the carrier module and cooperate with each other, and further comprising a mold base plate disposed on the rear side of the carrier module, and an ejection device disposed between the mold base plate and the carrier module, characterized in that: A limiting protrusion is formed on the end face of the mold core block toward the forming block. Correspondingly, a limiting mold cavity that cooperates with the limiting protrusion is opened on the end face of the forming block. A main model cavity is opened on the end face of the limiting protrusion. Correspondingly, a secondary model cavity that cooperates with the main model cavity is opened on the bottom surface of the limiting mold cavity. A first guide groove is provided between the upper right inner wall of the sub-model cavity and the upper outer wall of the molding block, and a second guide groove is provided between the lower inner wall of the sub-model cavity and the lower outer wall of the molding block. Between the dynamic pressure block and the carrier module, there are also ear-shaped forming mechanisms and flared mouth forming mechanisms respectively distributed vertically. The ear-shaped forming mechanism includes a first guide block movably connected to the front side of the carrier module to have vertical movement function and located above the forming block, a first auxiliary block fixed on the first guide block and movably disposed in the first guide groove, and a first hydraulic cylinder fixed on the upper outer wall of the carrier module. The telescopic end of the first hydraulic cylinder is vertically downward and fixed on the first guide block. The flared mouth forming mechanism includes a second guide block movably connected to the front side of the carrier module to have vertical movement function and located below the forming block, a second auxiliary block fixed on the second guide block and movably disposed in the second guide groove, and a second hydraulic cylinder fixed on the lower outer wall of the carrier module. The telescopic end of the second hydraulic cylinder is vertically upward and fixed on the second guide block.

[0007] Preferably, a first positioning block is formed downward on the outer wall of the first auxiliary block facing the forming block, a first notch is provided at the left front corner of the end of the first positioning block, and a second notch is provided at the left rear corner of the end of the first positioning block, which communicates with the inner wall of the rear side of the first notch.

[0008] Preferably, a second positioning block is formed on the outer wall of the second auxiliary block facing the forming block, and two countersunk holes are also formed on the outer wall of the second auxiliary block facing the forming block, which are respectively symmetrically arranged on the left and right sides of the second positioning block.

[0009] Preferably, an arc-shaped cavity is formed on the bottom surface of the main model cavity. Correspondingly, a seat block is formed on the bottom surface of the secondary model cavity facing the mold core block, which cooperates with the arc-shaped cavity. An arc-shaped notch is formed on the upper edge of the opening of the arc-shaped cavity. Correspondingly, a stepped seat block is formed between the upper outer wall of the seat block and the bottom surface of the secondary model cavity, which cooperates with the arc-shaped notch. The end of the second positioning block cooperates with the lower outer wall of the seat block.

[0010] Preferably, a plurality of vertically distributed first material-saving blocks are formed on the bottom surface of the main model cavity facing the direction of the forming block, and all located to the left of the arc-shaped cavity and the arc-shaped notch. A plurality of vertically distributed second material-saving blocks are formed on the bottom surface of the main model cavity facing the direction of the forming block, and all located to the right of the arc-shaped cavity. A core block is also embedded in the upper right of the bottom surface of the main model cavity. A plurality of vertically distributed third material-saving blocks are formed on the rear outer wall of the core block facing the direction of the forming block, and all located to the right of the arc-shaped notch.

[0011] Preferably, a guide notch is provided between the lower edge of the end of the main model cavity and the lower edge of the end of the mold core block to cooperate with the second guide block, and an outer cavity is provided between the upper edge of the opening of the guide notch and the lower edge of the opening of the arc-shaped cavity to cooperate with the second positioning block.

[0012] Preferably, a columnar protrusion is formed between the inner walls on both sides of the sub-model cavity and the bottom surface, and the ends of the two columnar protrusions respectively cooperate with the bottom surfaces of the two countersunk holes.

[0013] Compared with the prior art, the advantages of this utility model are as follows: This utility model sets the parting surface on the longitudinal thickness section of the right shell. Although the forming tasks of the flared mouth and ear seat on the right shell need to be changed to be completed by the ear seat forming mechanism and the flared mouth forming mechanism respectively, the mold core block and the forming block only need a small thickness to wrap and form the right shell, thereby greatly reducing the amount of material used to make the mold and reducing the manufacturing cost; and the multiple material-saving cavities located on both sides of the right shell can be automatically formed by the mold core block and the forming block during the mold parting and mold closing process, thereby reducing the debugging difficulty and simplifying the processing and manufacturing steps as a whole. 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 left front side of this utility model; Figure 2 This is a structural diagram of the left rear side of the mold core block and the core block of this utility model; Figure 3 This is a structural diagram of the right front side of the molding block of this utility model; Figure 4 This is a structural diagram of the left rear side of the ear seat forming mechanism of this utility model; Figure 5 This is a structural diagram of the left front side of the flared mouth forming mechanism of this utility model; Figure 6 This is a structural diagram of the right rear side of the flared mouth forming mechanism 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 1-6 As shown, a molding die for the right housing of an automobile shock absorber includes a dynamic pressure block 1 and a carrier module 2 that cooperate with each other and are respectively arranged in front and behind, and a mold core block 3 and a molding block 4 that are respectively embedded in the rear side of the dynamic pressure block 1 and the front side of the carrier module 2 and cooperate with each other. It also includes a mold base plate 5 located on the rear side of the carrier module 2, and an ejection device 6 located between the mold base plate 5 and the carrier module 2. A limiting protrusion 35 is formed on the end face of the mold core block 3 in the direction of the forming block 4. Correspondingly, a limiting mold cavity 41 that cooperates with the limiting protrusion 35 is provided on the end face of the forming block 4. A main model cavity 31 is provided on the end face of the limiting protrusion 35. Correspondingly, a secondary model cavity 43 that cooperates with the main model cavity 31 is provided on the bottom surface of the limiting mold cavity 41. A first guide groove 42 is provided between the upper right inner wall of the sub-model cavity 43 and the upper outer wall of the molding block 4, and a second guide groove 49 is provided between the lower inner wall of the sub-model cavity 43 and the lower outer wall of the molding block 4. Between the dynamic pressure block 1 and the carrier module 2, there are also ear seat forming mechanism 7 and flared mouth forming mechanism 8 respectively distributed vertically. The ear seat forming mechanism 7 includes a first guide block 71 movably connected to the front side of the carrier module 2 to have vertical movement function and located above the forming block 4, a first auxiliary block 73 fixed on the first guide block 71 and movably disposed in the first guide groove 42, and a first hydraulic cylinder 72 fixed on the upper outer wall of the carrier module 2. The telescopic end of the first hydraulic cylinder 72 is vertically downward and fixed on the first guide block 71. The flared mouth forming mechanism 8 includes a second guide block 81 movably connected to the front side of the carrier module 2 to have vertical movement function and located below the forming block 4, a second auxiliary block 83 fixed on the second guide block 81 and movably disposed in the second guide groove 49, and a second hydraulic cylinder 82 fixed on the lower outer wall of the carrier module 2. The telescopic end of the second hydraulic cylinder 82 is vertically upward and fixed on the second guide block 81.

[0018] A first positioning block 731 is formed downward on the outer wall of the first auxiliary block 73 facing the forming block 4. A first notch 733 is provided at the left front corner of the end of the first positioning block 731, and a second notch 732 is provided at the left rear corner of the end of the first positioning block 731, which communicates with the rear inner wall of the first notch 733.

[0019] A second positioning block 831 is formed on the outer wall of the second auxiliary block 83 facing the forming block 4. Two countersunk holes 832 are also provided on the outer wall of the second auxiliary block 83 facing the forming block 4, respectively symmetrically located on the left and right sides of the second positioning block 831.

[0020] An arc-shaped cavity 32 is formed on the bottom surface of the main model cavity 31. Correspondingly, a seat block 44 is formed on the bottom surface of the sub-model cavity 43 in the direction of the mold core block 3, which cooperates with the arc-shaped cavity 32. An arc-shaped notch 33 is formed on the upper edge of the opening of the arc-shaped cavity 32. Correspondingly, a stepped seat block 410 is formed between the upper outer wall of the seat block 44 and the bottom surface of the sub-model cavity 43, which cooperates with the arc-shaped notch 33. The end of the second positioning block 831 cooperates with the lower outer wall of the seat block 44.

[0021] On the bottom surface of the main model cavity 31, facing the direction of the forming block 4, there are multiple vertically distributed first material-saving blocks 37, all located to the left of the arc-shaped cavity 32 and the arc-shaped notch 33. On the bottom surface of the main model cavity 31, facing the direction of the forming block 4, there are multiple vertically distributed second material-saving blocks 36, all located to the right of the arc-shaped cavity 32. A core block 9 is also embedded in the upper right of the bottom surface of the main model cavity 31. On the rear outer wall of the core block 9, facing the direction of the forming block 4, there are multiple vertically distributed third material-saving blocks 91, all located to the right of the arc-shaped notch 33.

[0022] A guide notch 38 is provided between the lower edge of the end of the main model cavity 31 and the lower edge of the end of the mold core block 3, which cooperates with the second guide block 81. An outer cavity 34 is provided between the upper edge of the opening of the guide notch 38 and the lower edge of the opening of the arc-shaped cavity 32, which cooperates with the second positioning block 831.

[0023] A columnar protrusion 45 is formed on both the left and right inner walls and the bottom surface of the sub-model cavity 43. The ends of the two columnar protrusions 45 respectively cooperate with the bottom surfaces of the two countersunk holes 832.

[0024] An extended cavity 46 is provided on the bottom surface of the limiting cavity 41, which is located above the second guide groove 49 and below the two columnar protrusions 45. Two first arc-shaped grooves 47 are provided on the bottom surface of the extended cavity 46, which are respectively distributed to the left and right and are concentrically arranged with the ends of the two columnar protrusions 45. Correspondingly, two vertically arranged arc-shaped protrusions 833 are formed on the rear outer wall of the second auxiliary block 83. The two arc-shaped protrusions 833 cooperate with the two first arc-shaped grooves 47 respectively.

[0025] Two second arc-shaped grooves 48 are also provided on the bottom surface of the limiting mold cavity 41, which are respectively distributed on the left and right and are concentrically located above the two first arc-shaped grooves 47 and below the two columnar protrusions 45.

[0026] Working principle: The moving pressure block 1 and the mold base plate 5 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 moving pressure block 1 to move backward until the rear outer wall of the moving pressure block 1 is in contact with the front outer wall of the carrier module 2 (existing technology).

[0027] At this time, the end face of the mold core block 3 and the end face of the forming block 4 are joined together, so that the limiting protrusion 35 on the mold core block 3 is embedded in the limiting mold cavity 41 on the forming block 4; the opening of the main model cavity 31 and the opening of the secondary model cavity 43 are joined together; each third material saving block 91 on the core block 9 is located in front of the opening of the first guide groove 42; in addition, the seat block 44 on the forming block 4 extends into the arc-shaped cavity 32 on the mold core block 3, and the step seat block 410 extends into the arc-shaped notch 33.

[0028] Subsequently, the telescopic end of the first cylinder 72 in the drive ear-shaped forming mechanism 7 extends outward to drive the first auxiliary block 73 downward with the help of the first guide block 71, thereby causing the first positioning block 731 on the first auxiliary block 73 to extend into the rear of each third material-saving block 91, and the first notch 733 and the second notch 732 on the first positioning block 731 to cooperate with the interior of the sub-model cavity 43; at the same time, the telescopic end of the second cylinder 82 in the drive flared mouth forming mechanism 8 extends outward to drive the second auxiliary block 83 upward with the help of the second guide block 81, until the end of the second positioning block 831 is attached to the lower outer wall of the seat block 44; and the two countersunk holes 832 are respectively located directly below the two columnar protrusions 45.

[0029] Molten aluminum is injected into the space between the main model cavity 31 and the secondary model cavity 43 through the gates provided in the dynamic pressure block 1 and the mold core block 3, and the sprues provided in the carrier block 2 and the forming block 4. After cooling, the right housing of the shock absorber is formed. The first notch 733 and the second notch 732 on the first auxiliary block 73 in the ear seat forming mechanism 7 form the ear seat behind the right housing of the shock absorber. The second positioning block 831 on the second auxiliary block 83 in the horn mouth forming mechanism 8 forms the horn mouth at the bottom of the right housing of the shock absorber.

[0030] After molding is completed, the extension and retraction ends of the first cylinder 72 in the ear seat molding mechanism 7 and the extension and retraction ends of the second cylinder 82 in the horn mouth molding mechanism 8 are simultaneously retracted inward to drive the first auxiliary block 73 and the second auxiliary block 83 to move upward and downward respectively to reset. Then, the moving mechanism is operated to drive the dynamic pressure block 1 to move forward, thereby driving the end face of the mold core block 3 to separate from the end face of the molding block 4. Finally, the right housing of the molded shock absorber is pushed forward by the ejection device 6.

[0031] This invention sets the parting surface on the longitudinal thickness section of the right shell. Although the forming tasks of the flared mouth and ear seat on the right shell need to be changed to be completed by the ear seat forming mechanism 7 and the flared mouth forming mechanism 8 respectively, the mold core block 3 and the forming block 4 only need a small thickness to wrap and form the right shell, thereby greatly reducing the amount of material used to make the mold and reducing the manufacturing cost. The multiple material-saving cavities located on both sides of the right shell can be automatically formed by the mold core block 3 and the forming block 4 during the mold splitting and mold closing process, thereby reducing the debugging difficulty and simplifying the processing and manufacturing steps as a whole.

[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 molding die for the right housing of an automotive shock absorber, comprising a dynamic pressure block and a carrier module that cooperate with each other and are respectively arranged front and rear, and a mold core block and a molding block that are respectively embedded in the rear side of the dynamic pressure block and the front side of the carrier module and cooperate with each other, further comprising a mold base plate disposed on the rear side of the carrier module, and an ejection device disposed between the mold base plate and the carrier module, characterized in that: A limiting protrusion is formed on the end face of the mold core block toward the forming block. Correspondingly, a limiting mold cavity that cooperates with the limiting protrusion is opened on the end face of the forming block. A main model cavity is opened on the end face of the limiting protrusion. Correspondingly, a secondary model cavity that cooperates with the main model cavity is opened on the bottom surface of the limiting mold cavity. A first guide groove is provided between the upper right inner wall of the sub-model cavity and the upper outer wall of the molding block, and a second guide groove is provided between the lower inner wall of the sub-model cavity and the lower outer wall of the molding block. Between the dynamic pressure block and the carrier module, there are also ear-shaped forming mechanisms and flared mouth forming mechanisms respectively distributed vertically. The ear-shaped forming mechanism includes a first guide block movably connected to the front side of the carrier module to have vertical movement function and located above the forming block, a first auxiliary block fixed on the first guide block and movably disposed in the first guide groove, and a first hydraulic cylinder fixed on the upper outer wall of the carrier module. The telescopic end of the first hydraulic cylinder is vertically downward and fixed on the first guide block. The flared mouth forming mechanism includes a second guide block movably connected to the front side of the carrier module to have vertical movement function and located below the forming block, a second auxiliary block fixed on the second guide block and movably disposed in the second guide groove, and a second hydraulic cylinder fixed on the lower outer wall of the carrier module. The telescopic end of the second hydraulic cylinder is vertically upward and fixed on the second guide block.

2. The molding die for the right housing of an automotive shock absorber according to claim 1, characterized in that, A first positioning block is formed downward on the outer wall of the first auxiliary block facing the forming block. A first notch is provided at the left front corner of the end of the first positioning block, and a second notch is provided at the left rear corner of the end of the first positioning block, which communicates with the inner wall of the rear side of the first notch.

3. The molding die for the right housing of an automotive shock absorber according to claim 1, characterized in that, A second positioning block is formed on the outer wall of the second auxiliary block facing the forming block. Two countersunk holes are also formed on the outer wall of the second auxiliary block facing the forming block, respectively symmetrically located on the left and right sides of the second positioning block.

4. The molding die for the right housing of an automotive shock absorber according to claim 3, characterized in that, The main model cavity has an arc-shaped cavity on its bottom surface. Correspondingly, the sub-model cavity has a seat block on its bottom surface facing the mold core block that cooperates with the arc-shaped cavity. The upper edge of the opening of the arc-shaped cavity has an arc-shaped notch. Correspondingly, a stepped seat block is formed between the upper outer wall of the seat block and the bottom surface of the sub-model cavity that cooperates with the arc-shaped notch. The end of the second positioning block cooperates with the lower outer wall of the seat block.

5. The molding die for the right housing of an automotive shock absorber according to claim 4, characterized in that, On the bottom surface of the main model cavity, facing the direction of the forming block, there are multiple vertically distributed first material-saving blocks, all located to the left of the arc-shaped cavity and arc-shaped notch. On the bottom surface of the main model cavity, facing the direction of the forming block, there are multiple vertically distributed second material-saving blocks, all located to the right of the arc-shaped cavity. A core block is also embedded in the upper right of the bottom surface of the main model cavity. On the rear outer wall of the core block, facing the direction of the forming block, there are multiple vertically distributed third material-saving blocks, all located to the right of the arc-shaped notch.

6. The molding die for the right housing of an automotive shock absorber according to claim 1, characterized in that, A guide notch is provided between the lower edge of the end of the main model cavity and the lower edge of the end of the mold core block, which cooperates with the second guide block. An outer cavity is provided between the upper edge of the opening of the guide notch and the lower edge of the opening of the arc-shaped cavity, which cooperates with the second positioning block.

7. The molding die for the right housing of an automotive shock absorber according to claim 3, characterized in that, The inner walls on both sides of the sub-model cavity are each formed with a columnar protrusion facing downwards between the bottom surface and the inner wall. The ends of the two columnar protrusions respectively cooperate with the bottom surfaces of the two countersunk holes.

Images