Side die guide mechanism of low-pressure casting hub die and low-pressure casting hub die

Abstract

The utility model discloses a side die guide mechanism of a low-pressure casting hub die and the low-pressure casting hub die. The low-pressure casting hub die comprises four side dies, four triangular blocks, a bottom plate and the improved side die guide mechanism of the low-pressure casting hub die. A side die side key installed on the vertical face side of the side die and two guide flat keys installed on the corresponding sides of the triangular block are arranged between the side die and the triangular block, and a sliding way used for the side die side key is formed between the two guide flat keys. Two side die guide sliding strips installed on the bottom face side of the side die and a bottom plate guide key installed on the front face side of the bottom plate are arranged between the side die and the bottom plate, and a guide groove used for the bottom plate guide key is formed between the two side die guide sliding strips. When the side die moves forwards, the side die side key and the side die guide sliding strip which are installed on the side die are matched with the bottom plate guide key installed on the bottom plate and the guide flat key installed on the triangular block, so that the side die moves stably, the guide precision is improved, and the stability of the side die in the production process is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of low-pressure casting, in particular to a side mold guide mechanism of a low-pressure casting hub mold and a low-pressure casting hub mold. Background Art

[0002] As the demand for lightweight, high-strength aluminum alloy automobile wheels increases year by year, there is also a strong demand for low-pressure casting wheels. At present, the main structure of the conventional low-pressure wheel casting mold in the foundry industry is composed of a top mold, a bottom mold and four side molds. The movement mode of the side mold opening and closing is that the side mold cooperates with the side mold side key and the triangular block slide to ensure the opening and closing production needs of the mold. Because the side mold and the triangular block are guided by the side mold side key, and the cylinder applies a large force to the side mold during the opening and closing process of the mold, the single slide fixed structure causes the side mold to shake left and right or be uneven left and right during the opening and closing process, and it is easy to cause damage to the side mold side key and the triangular block slide, resulting in the overall tilt of the side mold after the side mold is in place, causing mold misalignment and flash, which has a great impact on the metal utilization rate of the wheel product and subsequent processing procedures. Utility Model Content

[0003] In order to solve the above problems, the purpose of the utility model is to provide a side mold guiding mechanism for a low-pressure casting wheel hub mold, to improve the guiding accuracy, thereby improving the stability of the side mold in the production process, increasing the service life of the side mold sliding parts, and reducing the number of replacement times of the side mold sliding parts, thereby greatly saving costs and, to a certain extent, improving the problems of side mold misalignment and flash during the mold production process, and greatly improving the wall thickness uniformity of the wheel hub blank.

[0004] According to one aspect of the utility model, a side mold guiding mechanism of a low-pressure casting wheel hub mold is provided, wherein a side mold side key installed on the vertical side of the side mold and two guide flat keys installed on the corresponding sides of the triangular block are provided between the side mold and the triangular block, wherein a slideway for the side mold side key is formed between the two guide flat keys, and wherein two side mold guide slide bars installed on the bottom side of the side mold and a bottom plate guide key installed on the front side of the bottom plate are provided between the side mold and the bottom plate, wherein a guide groove for the bottom plate guide key is formed between the two side mold guide slide bars.

[0005] Preferably, the two side mold guide slide bars are respectively installed in two fourth key grooves on the bottom surface side of the side mold.

[0006] Preferably, the vertical side surface of the triangular block is provided with upper and lower second keyways, and two guide flat keys are respectively fixed in the upper and lower second keyways; and / or, the side surface of the side mold is provided with a first keyway, and the side key of the side mold is fixed in the first keyway.

[0007] Preferably, the top surface of the key body of the guide flat key is flush with the side surface of the triangular block, and the plane of the middle part of the two second key grooves is lower than the top surface of the key body of the guide flat key.

[0008] Preferably, the side key of the side mold is in the shape of an elongated strip, one end of which is a 45° inclined surface and the other end is a flat surface, and the key body of the mold side key protrudes from the side surface of the side mold.

[0009] Preferably, two fourth key slots are provided on the bottom surface of the side mold, and the two side mold guide slides are respectively fixed in the two fourth key slots; and / or, the bottom plate is provided with a third key slot, and the bottom plate guide key is fixed in the third key slot.

[0010] Preferably, multiple pairs of corresponding base plate guide keys and third key slots are provided. The base plate guide keys are in the shape of long strips, with one end being an arc surface and the other end being a plane. The base plate guide keys have different widths, and correspondingly, the third key slots have different widths. The key body of the base plate guide key protrudes from the front side of the base plate.

[0011] Preferably, the top surface of the key body of the side mold guide slide is flush with the bottom surface of the side mold, and the middle plane of the two fourth key grooves is lower than the top surface of the key body of the side mold guide slide, thereby forming a guide groove with the two side mold guide slides.

[0012] According to another aspect of the utility model, a low-pressure casting wheel hub mold is provided, comprising four side molds, four triangular blocks, a bottom plate, and the above-mentioned improved side mold guide mechanism of the low-pressure casting wheel hub mold.

[0013] Preferably, the guide flat key is in the shape of an elongated strip, one end of which is a 45° inclined surface and the other end is a flat surface, and the guide flat key is installed in two second key slots on adjacent vertical sides of the triangular block.

[0014] Compared with the prior art, the utility model has the following beneficial effects: simple structure, easy implementation, and strong practicality. By optimizing the guide mechanism between the side mold and the triangular block and adding the guide mechanism between the side mold and the bottom plate, the guide accuracy of the side mold is improved, the stability of the side mold in the production process is improved, the service life of the side mold sliding parts is increased, the side mold misalignment and flash problems in the mold production process are improved, and the wall thickness uniformity of the wheel hub blank is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of a new side mold guide mechanism used in this invention.

[0016] Figure 2 for Figure 1 Schematic diagram of the exploded structure of the guide mechanism between the side mold, the bottom plate and one of the triangular blocks.

[0017] Figure 3 Schematic diagram of the placement of the guide key on the triangular block.

[0018] Figure 4 This is a schematic diagram of the placement of the base plate guide key on the base plate. DETAILED DESCRIPTION

[0019] The exemplary embodiments of the present utility model are described in detail below in conjunction with the accompanying drawings. The exemplary embodiments described below and shown in the accompanying drawings are intended to teach the principles of the present utility model, so that those skilled in the art can implement and use the present utility model in several different environments and for several different applications. Therefore, the scope of protection of the present utility model is defined by the attached claims, and the exemplary embodiments are not intended to be, and should not be considered as, a restrictive description of the scope of protection of the present utility model. Moreover, for ease of description, the same elements in the accompanying drawings are represented by the same or similar reference numerals, and the sizes of the various parts shown are not necessarily drawn according to the actual proportional relationship. The description of the orientation, such as the longitudinal direction corresponding to the longitudinal length of the main body, and the orientation or position relationship indicated by the upper, lower, left, right, top, bottom, etc., are all based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. The following description of each embodiment emphasizes the differences between the embodiments. The same or similar aspects can be referenced to each other. For the sake of brevity, they will not be described one by one. The technical features in different embodiments can be freely combined according to design requirements to form more embodiments.

[0020] According to an exemplary embodiment of the present utility model, a side mold guide mechanism of a low-pressure casting wheel hub mold is provided, comprising a guide flat key 3, a side mold side key 4, a side mold guide slide 5 and a bottom plate guide key 6, which are respectively located between the side mold 1 and the triangular block 2 and the bottom plate 7. Figure 1 , 2 as shown in .

[0021] Combination Figure 3 As shown, the adjacent vertical sides of the triangular block 2 are respectively provided with upper and lower second key grooves 201, and the guide flat keys 3 are fixed in the two second key grooves 201 by bolts; the two side surfaces of the side mold 1 are respectively provided with first key grooves 101, and the side mold side keys 4 are fixed in the first key grooves 101 by bolts; the middle part of the bottom surface of the side mold 1 is provided with two fourth key grooves 102, and the side mold guide slides 5 are fixed in the two fourth key grooves 102 by bolts; the middle part of the four sides of the front side of the bottom plate 7 is provided with third key grooves 301, and the bottom plate guide keys 6 are fixed in the third key grooves 301 by bolts.

[0022] In this way, when the side mold 1 moves forward, the side mold side key 4 installed on the vertical side of the side mold 1 and the side mold guide slide bar 5 on the bottom side cooperate with the guide flat key 3 installed on the triangle block 2 and the bottom plate guide key 6 installed on the bottom plate 7 to make the side mold move smoothly.

[0023] The guide flat key 3 is in the shape of an elongated strip, with one end being a 45° inclined surface and the other end being a flat surface. The guide flat key 3 is installed in two second key grooves 201 that are connected to each other at two adjacent vertical side surfaces of the triangular block 2. The top surface of the key body is flush with the side surface of the triangular block 2, and the plane of the middle part of the two second key grooves 201 is lower than the top surface of the key body, thereby forming a slideway 202 with the two guide flat keys 3.

[0024] The side key 4 of the side mold is in the shape of an elongated strip, with one end being a 45° inclined surface and the other end being a flat surface. The side key 4 of the side mold is installed in the first key groove 101 on both sides of the side mold 1 , and the key body protrudes from the side of the side mold 1 .

[0025] The side mold guide strip 5 is in the shape of a long strip, and two side mold guide strips 5 are respectively installed in two fourth key slots 102 on the bottom side of the side mold 1, the top surface of the key body is flush with the bottom surface of the side mold 1, and the plane of the middle part of the two fourth key slots 102 is lower than the top surface of the key body, thereby forming a guide groove 103 with the two side mold guide strips 5. The guide grooves 103 on the bottom side of each side mold 1 can have different widths (corresponding to different spacings of the side mold guide strips 5).

[0026] Preferably, a plurality of pairs (for example, four) of corresponding base plate guide keys 6 and third key slots 301 are provided. The base plate guide keys 6 are in the shape of long strips, one end of which is an arc surface, and the other end is a plane. The base plate guide keys 6 have different widths. The base plate guide keys 6 are installed in the third key slots 301 on the front side of the base plate 7. Correspondingly, the third key slots 301 have different widths from each other, and the key bodies protrude from the front side of the base plate 7.

[0027] The above-mentioned different interval settings and different width settings are helpful to prevent assembly misalignment.

[0028] In this way, a set of molds can be composed of four side molds 1, four triangular blocks 2 and a bottom plate 7, so four sets of side mold guide mechanisms need to be set up.

[0029] More specifically, if Figure 1 and Figure 2 As shown, a side mold guiding mechanism of a low-pressure casting wheel hub mold of the utility model is arranged between the triangular block, the bottom plate and the side mold, including a side mold side key 4 installed in the first key groove 101 on both sides of the side mold 1, and a side mold guide slide 5 installed in the second key groove 102 at two locations on the bottom surface of the side mold 1. The side mold side key 4 cooperates with the slideway 202 formed by the guide flat key 3 installed in the second key groove 201 at two locations on the adjacent vertical sides of the triangular blocks 2 on both sides of the side mold 1. The side mold guide slide 5 in the fourth key groove 102 at two locations on the bottom surface of the side mold 1 forms a guide groove 103, which cooperates with the bottom plate guide key 6 installed in the third key groove 301 on the front side of the bottom plate 7.

[0030] When the mold is closed, the oil cylinder of the die-casting machine applies forward power to the side mold 1, and the side mold side keys 4 installed in the first key grooves 101 on both sides of the side mold 1 slide in the slideways 202 on the triangular blocks 2 on both sides of the side mold 1, and the two guide flat keys 3 on the triangular blocks 2 guide and constrain the side mold side keys 4 to prevent the side mold 1 from shaking up and down during the forward movement; the side mold guide slides 5 installed in the two fourth key grooves 102 on the bottom surface of the side mold 1 form a guide groove 103, and the bottom plate guide keys 6 installed and fixed on the third key grooves 301 on the front side of the bottom plate 7 are located in the guide grooves 103 on the bottom surface of the side mold 1, and the side mold guide slides 5 slide on both sides of the bottom plate guide keys 6, and the bottom plate guide keys 6 guide and constrain the side mold guide slides 5 to prevent the side mold 1 from shaking left and right during the forward movement.

[0031] like Figure 1 and Figure 2 As shown, the side mold guide mechanisms are respectively located between the side mold 1, the triangular block 2 and the bottom plate 7, all the guide flat keys 3, the side mold side keys 4, the side mold guide slides 5 and the bottom plate guide keys 6 are fixed in the corresponding key slots by bolts. A set of molds consists of four side molds, four triangular blocks and a bottom plate, so 4 sets of side mold guide mechanisms are required.

[0032] Preferably, the guide flat key 3 is located in the middle of the adjacent vertical sides of the four triangular blocks, and the adjacent vertical sides of the triangular blocks are each provided with two upper and lower second key slots 201, and the positions and interval widths of the two second key slots 201 on each triangular block are the same, and the guide flat key 3 is installed in the two second key slots 201 on the adjacent vertical sides of the triangular block, the top surface of the key body is flush with the side surface of the triangular block, and the plane of the middle part of the two second key slots 201 is lower than the top surface of the key body, thereby forming a slideway 202 with the two guide flat keys 3. Correspondingly, the side mold side keys 4 are located in the middle of the two sides of the side mold.

[0033] In the description of the present application, "multiple" means two or more than two, unless otherwise clearly and specifically defined. Unless otherwise clearly specified and defined, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances. Although the present invention has been described with reference to various specific embodiments, it should be understood that variations can be made within the spirit and scope of the concept of the described utility model. Therefore, it is intended that the present invention is not limited to the described embodiments, but will have the full scope defined by the language of the appended claims.

Claims

1. A side mold guide mechanism for a low-pressure casting wheel hub mold, characterized in that: Arranged between the side mold (1) and the triangular block (2) are: a side mold side key (4) mounted on the vertical side of the side mold (1), and two guide flat keys (3) mounted on the corresponding sides of the triangular block (2), wherein a slideway (202) for the side mold side key (4) is formed between the two guide flat keys (3); and arranged between the side mold (1) and the bottom plate (7): two side mold guide slide bars (5) mounted on the bottom side of the side mold (1), and a bottom plate guide key (6) mounted on the front side of the bottom plate (7), wherein a guide groove (103) for the bottom plate guide key (6) is formed between the two side mold guide slide bars (5).

2. The side mold guide mechanism of the low-pressure casting wheel hub mold according to claim 1, characterized in that: The two side mold guide slides (5) are respectively installed in two fourth key slots (102) on the bottom surface side of the side mold (1).

3. The side mold guide mechanism of the low-pressure casting wheel hub mold according to claim 1, characterized in that: The vertical side surface of the triangular block (2) is provided with upper and lower second key grooves (201), and two guide flat keys (3) are respectively fixed in the upper and lower second key grooves (201); and / or, the side surface of the side mold (1) is provided with a first key groove (101), and the side mold side key (4) is fixed in the first key groove (101).

4. The side mold guide mechanism of the low-pressure casting wheel hub mold according to claim 3, characterized in that: The top surface of the key body of the guide flat key (3) is flush with the side surface of the triangular block (2), and the plane of the middle part of the two second key grooves (201) is lower than the top surface of the key body of the guide flat key (3).

5. The side mold guide mechanism of the low-pressure casting wheel hub mold according to claim 3, characterized in that: The side key (4) of the side mold is in the shape of a long strip, one end of which is a 45° inclined surface and the other end is a flat surface, and the key body of the mold side key (4) protrudes from the side surface of the side mold (1).

6. The side mold guide mechanism of the low-pressure casting wheel hub mold according to claim 1, characterized in that: The bottom surface of the side mold (1) is provided with two fourth key slots (102), and the two side mold guide slides (5) are respectively fixed in the two fourth key slots (102); and / or the bottom plate (7) is provided with a third key slot (301), and the bottom plate guide key (6) is fixed in the third key slot (301).

7. The side mold guide mechanism of the low-pressure casting wheel hub mold according to claim 6, characterized in that: A plurality of pairs of corresponding bottom plate guide keys (6) and third key slots (301) are provided. The bottom plate guide keys (6) are in the shape of long strips, one end of which is an arc surface and the other end is a plane surface. The bottom plate guide keys (6) have different widths from each other. Accordingly, the third key slots (301) have different widths from each other. The key bodies of the bottom plate guide keys (6) protrude from the front surface of the bottom plate (7).

8. The side mold guide mechanism of the low-pressure casting wheel hub mold according to claim 6, characterized in that: The top surface of the key body of the side mold guide slide (5) is flush with the bottom surface of the side mold (1), and the plane of the middle part of the two fourth key grooves (102) is lower than the top surface of the key body of the side mold guide slide (5), thereby forming a guide groove (103) with the two side mold guide slides (5).

9. A low pressure casting wheel hub mold, characterized in that: The invention comprises four side molds (1), four triangular blocks (2), a bottom plate (7), and a side mold guide mechanism of a low-pressure casting wheel hub mold according to any one of claims 1 to 8.

10. The low pressure casting wheel hub mold according to claim 9, characterized in that: The guide flat key (3) is in the shape of a long strip, with one end being a 45° inclined surface and the other end being a flat surface. The guide flat key (3) is installed in two second key slots (201) on adjacent vertical side surfaces of the triangular block (2).

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