Mould for molding steering knuckle sand box

Abstract

The utility model provides a mold for molding a steering knuckle sand box, which belongs to the technical field of automobile steering knuckle casting molds, and comprises a lower mold arranged along the left-right direction, an upper mold arranged at the upper part of the lower mold, a pair of first sand reducing cylinders arranged at the left end and the right end in the lower mold, and a pair of first sand reducing grooves arranged at the left end and the right end of the upper mold, a positioning pin is arranged in the middle of the interior of the lower die, a positioning groove is formed in the middle of the interior of the upper die, the front face and the rear face of the positioning pin are each provided with a second sand reducing cylinder, and a second sand reducing groove is formed in the position, corresponding to the upper die, of each second sand reducing cylinder. The first sand reducing cylinder is in filling connection with the first sand reducing groove, and the second sand reducing cylinder is in filling connection with the second sand reducing groove, so that the positioning pin is matched with the positioning groove, and the butt joint of the upper mold and the lower mold is more accurate; therefore, consumption of sand grains on the left side and the right side of the upper die and consumption of sand grains in the middle of the upper die can be reduced, and manufacturing cost is saved.

Description

Technical Field

[0001] This utility model relates to the field of automotive steering knuckle casting mold technology, specifically to a mold for forming steering knuckle sand boxes. Background Technology

[0002] The steering knuckle is an important component of the automotive steering axle. It enables the vehicle to drive stably and transmits driving direction sensitively. At the same time, it bears the load of the front of the vehicle, supports and drives the front wheels to rotate around the kingpin. The steering knuckle has a complex structure and requires high precision. It is suitable for production using sand casting technology, which requires the use of sand box forming molds.

[0003] In related technologies, sand box molding molds are mostly composed of a lower mold and an upper mold that are precisely connected. In use, the upper mold and the lower mold are usually used to complete the casting of the steering knuckle blank. The upper mold is filled with sand to form the required steering knuckle mold shape, and then it is connected with the lower mold to form a complete mold sand box. Liquid is then poured through the pouring hole of the upper mold to cast the required steering knuckle casting.

[0004] However, currently, when filling the upper mold with sand particles, the entire mold needs to be filled, which leads to excessive sand consumption and increased waste sand, resulting in increased costs. To solve the above problems, a mold for forming the steering knuckle sand box is proposed. Utility Model Content

[0005] In view of this, the present invention provides a mold for forming a steering knuckle sand box. When the mold is disassembled, the upper mold and the lower mold are connected, so that the first sand reducing cylinder is filled and connected with the first sand reducing groove, and the second sand reducing cylinder is filled and connected with the second sand reducing groove. This allows the positioning pin to cooperate with the positioning groove, thereby making the connection between the upper mold and the lower mold more precise. This reduces the amount of sand used on the left and right sides of the upper mold and the amount of sand used in the middle of the upper mold, thus saving manufacturing costs.

[0006] To solve the above-mentioned technical problems, this utility model provides a mold for forming a steering knuckle sand box, including a lower mold arranged in the left-right direction, an upper mold arranged on the upper part of the lower mold, a pair of first sand-reducing cylinders arranged at both ends of the lower mold, a pair of first sand-reducing grooves arranged at both ends of the upper mold, the first sand-reducing grooves corresponding to the first sand-reducing cylinders and adapted to each other, a positioning pin arranged in the middle of the lower mold, a positioning groove arranged in the middle of the upper mold, the positioning groove corresponding to the positioning pin, a second sand-reducing cylinder arranged on each of the front and rear sides of the positioning pin, and a second sand-reducing groove arranged at the position corresponding to the upper mold of each second sand-reducing cylinder and adapted to each other.

[0007] A pair of positioning components are symmetrically arranged on the front and rear sides of the upper mold. The positioning components are used to connect the upper mold and the lower mold. A pair of receiving blocks are symmetrically arranged on the front and rear sides of the lower mold. The receiving blocks are used to connect the positioning components and the positioning components are connected to the receiving blocks. A connecting block is provided in the middle of the front and rear sides of the upper mold. The connecting block is used to fix the slide rail. The connecting block has a cavity inside. The cavity is used for the movement of the slide plate and also for installing the slide rail.

[0008] A slide rail is provided on each of the left and right sides of the cavity. The slide rail is welded and fixed to the inner wall of the connecting block. A slide plate is slidably installed between the slide rails. The slide plate is used to move on the slide rail and connect the separating plate and the plug-in block. A limit block is provided on both the upper and lower sides of the slide plate to prevent the slide plate from falling off the slide rail. The height of the limit block is greater than the height of the slide rail. A separating plate is provided on the side of the slide plate closer to the upper mold. The separating plate adopts a horizontal trapezoidal platform and is made of stainless steel. The length of the separating plate is half the side length of the lower mold. A plug-in block is provided on the side of the slide plate away from the upper mold. The plug-in block can adopt a concave groove. The plug-in block and the slide plate can be connected by a sealing plate to seal the connection part.

[0009] The upper mold has an upper heat insulation plate on both the front and back sides to protect operators from burns. The lower mold has a lower heat insulation plate on both the front and back sides to protect operators from burns.

[0010] The receiving block passes through the lower heat insulation plate and is welded and fixed to the lower mold. The receiving block has a threaded hole running from top to bottom, which is used to receive the threaded rod.

[0011] Each positioning component includes a positioning block for having an upper threaded hole. The positioning block is also used to connect the threaded rod to the upper mold. The positioning block passes through the upper heat insulation plate and is welded and fixed to the upper mold. The positioning block has an upper threaded hole running from top to bottom. The upper threaded hole is used to install the threaded rod. The threaded rod is installed in the upper threaded hole and can move between the upper threaded hole and the lower threaded hole. The threaded rod and the lower threaded hole correspond to each other. A heat insulation sleeve is provided at the upper end of the threaded rod. The heat insulation sleeve is used to reduce the temperature of the nut. A nut is provided at the upper end of the heat insulation sleeve. The nut is used to rotate the threaded rod so that the threaded rod can move between the upper threaded hole and the lower threaded hole.

[0012] In summary, compared with the prior art, this application includes at least one of the following beneficial technical effects:

[0013] 1. By connecting the upper mold and the lower mold, the first sand-reducing cylinder is connected to the first sand-reducing groove, and the second sand-reducing cylinder is connected to the second sand-reducing groove. This allows the positioning pin to engage with the positioning groove, making the connection between the upper mold and the lower mold more precise. This reduces the amount of sand used on the left and right sides of the upper mold, as well as the amount of sand used in the middle of the upper mold, thus saving production costs.

[0014] 2. During demolding, the receiving block and the positioning block are separated by the threaded rod. The slide plate is moved by the plug-in block, which causes the slide plate to move the separating plate in the slide rail. This allows the separating plate to insert into the connection gap between the upper and lower molds. The plug-in block is then struck with a tool to further push the separating plate into the connection gap between the upper and lower molds, thereby separating the upper and lower molds. This reduces the damage to the connection between the upper and lower molds when directly demolding, thus improving the service life of the mold.

[0015] 3. After the upper mold and the lower mold are connected, the threaded rod on the positioning component passes through the upper threaded hole and enters the lower threaded hole, thereby connecting the receiving block and the positioning block, thus strengthening the accuracy of the connection between the upper mold and the lower mold. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0017] Figure 2 This is a top sectional view of the present invention;

[0018] Figure 3 This is a bottom sectional view of the present invention;

[0019] Figure 4 This is a side sectional view of the present invention;

[0020] Figure 5 This utility model Figure 4 A magnified view of part A.

[0021] Explanation of reference numerals in the attached drawings: 100, lower mold; 101, upper mold; 102, connecting block; 103, cavity; 104, slide rail; 105, sliding plate; 106, limiting block; 107, separating plate; 108, insertion / removal block; 200, positioning assembly; 201, receiving block; 202, lower threaded hole; 203, positioning block; 204, upper threaded hole; 205, threaded rod; 206, heat insulation sleeve; 207, nut; 300, first sand reducing cylinder; 301, second sand reducing cylinder; 302, first sand reducing groove; 303, second sand reducing groove; 304, positioning pin; 305, positioning groove; 400, upper heat insulation plate; 401, lower heat insulation plate. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the accompanying drawings of the embodiments of this utility model. Figure 1-5 The technical solutions of the embodiments of this utility model are clearly and completely described below. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0023] like Figure 1-5As shown: This embodiment provides a mold for forming a steering knuckle sand box, including a lower mold 100 arranged in the left-right direction, which supports the bottom of the cast steering knuckle. An upper mold 101 is arranged on the upper part of the lower mold 100, and the upper mold 101 is provided with a pouring hole. The upper mold 101 supports the upper part of the cast steering knuckle. A pair of first sand-reducing cylinders 300 are provided at both the left and right ends of the lower mold 100. The first sand-reducing cylinders 300 are welded and fixed to the lower mold 100 and are used to insert and fix the first sand-reducing grooves 302. A pair of first sand-reducing grooves 302 are provided at both the left and right ends of the upper mold 101. The first sand-reducing grooves 302 and the casting groove of the steering knuckle in the lower mold 100 are reserved with a gap so as not to affect the casting strength. The upper mold 101 has a pre-reserved gap between the upper mold 101 and the casting groove of the steering knuckle to ensure that it does not affect the casting strength. The first sand-reducing groove 302 is embedded in the upper mold 101. The first sand-reducing groove 302 is used to reduce the amount of sand particles on the left and right sides of the upper mold 101. The first sand-reducing groove 302 corresponds to the first sand-reducing cylinder 300 and the first sand-reducing cylinder 300 is adapted to each other. The first sand-reducing cylinder 300 is shaped with a wider bottom and a narrower top. The first sand-reducing cylinder 300 is used to fill the first sand-reducing groove 302, thereby stabilizing the casting strength of the upper mold 101. The first sand-reducing groove 302 is used to reduce the amount of sand particles on the left and right sides of the upper mold 101, thereby reducing the manufacturing cost of the lower mold 100. A positioning pin 304 is provided in the middle of the lower mold 100. The positioning pin 304 is connected to the lower mold. The upper mold 101 and lower mold 100 are fixed by welding. A positioning pin 304 is used to position the connection between the upper mold 101 and lower mold 100. A positioning groove 305 is provided in the middle of the upper mold 101, which is embedded and fixed to the lower mold 100. The positioning groove 305 is used to receive the positioning pin 304, thereby connecting the upper mold 101 and lower mold 100. The positioning groove 305 corresponds to the positioning pin 304, and is used to receive the positioning pin 304, thereby connecting the upper mold 101 and lower mold 100 and reducing the offset in the middle after the upper mold 101 and lower mold 100 are connected. A second sand-reducing cylinder 301 is provided on each of the front and rear sides of the positioning pin 304. The second sand-reducing cylinder 301 is welded and fixed to the lower mold 100, and is used for insertion and fixation. Within the second sand-reducing groove 303, each second sand-reducing cylinder 301 is provided with a second sand-reducing groove 303 at a position corresponding to the upper mold 101. The second sand-reducing groove 303 is spaced apart from the casting groove of the steering knuckle in the lower mold 100 to ensure that it does not affect the casting strength. The second sand-reducing groove 303 is used to reduce the amount of sand particles in the middle of the upper mold 101. The second sand-reducing cylinder 301 is adapted to the second sand-reducing groove 303 and is used to fill the second sand-reducing groove 303, thereby stabilizing the casting strength of the upper mold 101. The second sand-reducing groove 303 is used to reduce the amount of sand particles in the middle of the upper mold 101, thereby reducing the manufacturing cost of the lower mold 100.

[0024] In use, the upper mold 101 and the lower mold 100 are connected, thereby filling and connecting the first sand-reducing cylinder 300 with the first sand-reducing groove 302, and the second sand-reducing cylinder 301 with the second sand-reducing groove 303. This allows the positioning pin 304 to engage with the positioning groove 305, making the connection between the upper mold 101 and the lower mold 100 more precise. This reduces the amount of sand used on the left and right sides of the upper mold 101, as well as the amount of sand used in the middle of the upper mold 101, thus saving manufacturing costs.

[0025] This embodiment provides a mold for forming the steering knuckle sand box.

[0026] like Figure 1 , 2 As shown in Figures 4 and 5: A pair of positioning components 200 are symmetrically arranged on the front and rear sides of the upper mold 101. The positioning components 200 are used to connect the upper mold 101 and the lower mold 100. A pair of receiving blocks 201 are symmetrically arranged on the front and rear sides of the lower mold 100. The receiving blocks 201 are used to connect the positioning components 200 and the positioning components 200 are connected to the receiving blocks 201. A connecting block 102 is provided in the middle of the front and rear sides of the upper mold 101. The connecting block 102 is used to fix the slide rail 104. The connecting block 102 has a cavity 103 inside. The cavity 103 is used for the movement of the slide plate 105 and also for installing the slide rail 104.

[0027] Its effect is that the positioning component 200 is used to make the connection between the upper mold 101 and the lower mold 100 more secure and prevent them from loosening.

[0028] like Figure 4 , 5 As shown: A slide rail 104 is provided on each of the left and right sides of the cavity 103. The slide rail 104 is welded and fixed to the inner wall of the connecting block 102. A sliding plate 105 is slidably disposed between the slide rails 104. The sliding plate 105 is used to move on the slide rails 104 and connects the separating piece 107 to the insertion / removal block 108. A limiting block 106 is provided on both the upper and lower surfaces of the sliding plate 105 to prevent the sliding plate 105 from falling off the slide rails 104. The height is greater than the height of the slide rail 104. A separation plate 107 is provided on the side of the slide plate 105 that is close to the upper mold 101. The separation plate 107 adopts a horizontal ladder and is made of stainless steel. The length of the separation plate 107 is half the side length of the lower mold 100. A plug-in block 108 is provided on the side of the slide plate 105 that is away from the upper mold 101. The plug-in block 108 can adopt a concave groove. The plug-in block 108 and the slide plate 105 can be connected by a sealing plate to seal the connection part.

[0029] The effect is as follows: the slide plate 105 is used to connect the separating piece 107 with the plug-in block 108, and the limiting block 106 is used to prevent the slide plate 105 from falling off the slide rail 104. The slide plate 105 is moved by the plug-in block 108, so that the slide plate 105 drives the separating piece 107 to move within the slide rail 104, so that the separating piece 107 is inserted into the connection gap between the upper mold 101 and the lower mold 100. The plug-in block 108 is then struck by a tool to make the separating piece 107 penetrate deeper into the connection gap between the upper mold 101 and the lower mold 100, thereby separating the upper mold 101 and the lower mold 100. This reduces the damage to the connection between the upper mold 101 and the lower mold 100 during direct demolding, thereby improving the service life of the mold.

[0030] like Figure 1 , 2 As shown in Figures 3 and 4: A second sand-reducing cylinder 301 is provided on each of the front and rear sides of the positioning pin 304. The second sand-reducing cylinder 301 is welded and fixed to the lower mold 100. The second sand-reducing cylinder 301 is used to insert and fix the second sand-reducing groove 303. A second sand-reducing groove 303 is provided at the position corresponding to the upper mold 101 of each second sand-reducing cylinder 301. The second sand-reducing groove 303 is reserved with the casting groove of the steering knuckle in the lower mold 100 so as not to affect the casting strength. The second sand-reducing cylinder 301 is reserved with the casting groove of the steering knuckle in the upper mold 101 so as not to affect the casting strength. The second sand-reducing groove 303 is used to reduce the amount of sand in the middle of the upper mold 101. The second sand-reducing cylinder 301 and the second sand-reducing groove 303 are compatible.

[0031] Its effects are as follows: the second sand-reducing cylinder 301 is used to fill the second sand-reducing groove 303, thereby stabilizing the casting strength of the upper mold 101; the second sand-reducing groove 303 is used to reduce the amount of sand particles in the middle of the upper mold 101, thereby reducing the manufacturing cost of the lower mold 100.

[0032] like Figure 1 , 2 As shown in Figures 3 and 4: An upper heat insulation plate 400 is provided on both the front and rear sides of the upper mold 101. The upper mold 101 and the upper heat insulation plate 400 are fixed together with bolts, and the joints can be glued together. The upper heat insulation plate 400 is used to protect the operator from burns caused by the upper mold 101. A lower heat insulation plate 401 is provided on both the front and rear sides of the lower mold 100. The lower heat insulation plate 401 is fixed together with the lower mold 100 with bolts, and the joints can be glued together. The lower heat insulation plate 401 is used to protect the operator from burns caused by the upper mold 101. The upper heat insulation plate 400 is provided with slots for connecting the positioning block 203 to the upper mold 101 and slots for connecting the connecting block 102 to the upper mold 101.

[0033] The effect is that the upper heat insulation plate 400 and the lower heat insulation plate 401 are used to isolate the operator from direct contact with the mold, thereby preventing the operator from being burned when dismantling the mold.

[0034] like Figure 1 , 2 As shown in Figures 3 and 4: The receiving block 201 passes through the lower heat insulation plate 401 and is welded and fixed to the lower mold 100. A lower threaded hole 202 is provided through the receiving block 201 from top to bottom. The lower threaded hole 202 is used to receive the threaded rod 205. Each positioning component 200 includes a positioning block 203. The positioning block 203 is used to open an upper threaded hole 204. The positioning block 203 is also used to connect the threaded rod 205 to the upper mold 101. The positioning block 203 passes through the upper heat insulation plate 401 and is welded and fixed to the upper mold 101. An upper threaded hole 204 is provided through the positioning block 203 from top to bottom. The lower threaded hole 202 corresponds to the upper threaded hole 204 and has the same thread. The upper threaded hole 204 is used to install the threaded rod. A threaded rod 205 is provided in the upper threaded hole 204. The threaded rod 205 is adapted to the upper threaded hole 204 and can move within the upper threaded hole 204 and the lower threaded hole 202. The threaded rod 205 and the lower threaded hole 202 correspond to each other. A heat insulation sleeve 206 is provided at the upper end of the threaded rod 205. The heat insulation sleeve 206 and the upper end of the threaded rod 205 can be fixed by bolts. The heat insulation sleeve 206 is used to reduce the temperature of the nut 207. A nut 207 is provided at the upper end of the heat insulation sleeve 206. The nut 207 and the heat insulation sleeve 206 can be welded and fixed. The nut 207 is used to rotate the threaded rod 205 so that the threaded rod 205 can move between the upper threaded hole 204 and the threaded hole.

[0035] The effect is as follows: when fixing the upper mold 101 and the lower mold 100, the positioning block 203 on the positioning component 200 aligns with the receiving block 201, thereby aligning the upper threaded hole 204 with the lower threaded hole 202. The threaded rod 205 passes through the upper threaded hole 204 and the lower threaded hole 202, thereby connecting the positioning block 203 with the receiving block 201. The distance between the positioning block 203 and the receiving block 201 is adjusted by the knob nut 207, thereby fixing the upper mold 101 and the lower mold 100 in a corresponding manner, thereby reducing the offset when the upper mold 101 and the lower mold 100 are connected, making the casting more accurate.

[0036] Working principle: The upper mold 101 and lower mold 100 are connected, thereby filling and connecting the first sand-reducing cylinder 300 with the first sand-reducing groove 302, and the second sand-reducing cylinder 301 with the second sand-reducing groove 303. This allows the positioning pin 304 to engage with the positioning groove 305, making the connection between the upper mold 101 and lower mold 100 more precise. This reduces the amount of sand used on the left and right sides of the upper mold 101, as well as the amount of sand used in the middle of the upper mold 101, thus saving manufacturing costs. After the upper mold 101 and lower mold 100 are connected, the threaded rod 205 on the positioning component 200 passes through the upper threaded hole 204 and enters the lower threaded hole 202, thereby connecting the receiving block 201 and the positioning block 203. The upper mold 101 and the lower mold 100 are connected to each other, thereby strengthening the accuracy of the docking between them. When demolding is required, the receiving block 201 and the positioning block 203 are separated by the threaded rod 205. The insert block 108 is used to move the slide plate 105, so that the slide plate 105 drives the separating piece 107 to move within the slide rail 104. This allows the separating piece 107 to be inserted into the connection gap between the upper mold 101 and the lower mold 100. The insert block 108 is then struck with a tool to further push the separating piece 107 into the connection gap between the upper mold 101 and the lower mold 100, thereby separating the upper mold 101 and the lower mold 100. This reduces the damage to the connection between the upper mold 101 and the lower mold 100 during direct demolding, thereby improving the service life of the mold.

[0037] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0038] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A mold for forming a steering knuckle sand box, comprising a lower mold (100) arranged in a left-right direction, and an upper mold (101) arranged on the upper part of the lower mold (100), characterized in that: A pair of first sand-reducing cylinders (300) are provided at both the left and right ends of the lower mold (100), and a pair of first sand-reducing grooves (302) are provided at both the left and right ends of the upper mold (101). The first sand-reducing grooves (302) correspond to the first sand-reducing cylinders (300) and are adapted to each other. A positioning pin (304) is provided in the middle of the lower mold (100), and a positioning groove (305) is provided in the middle of the upper mold (101). The positioning groove (305) corresponds to the positioning pin (304). A second sand-reducing cylinder (301) is provided on each of the front and rear sides of the positioning pin (304). A second sand-reducing groove (303) is provided at the position corresponding to the upper mold (101) of each second sand-reducing cylinder (301). The second sand-reducing cylinder (301) and the second sand-reducing groove (303) are adapted to each other.

2. The mold for forming the steering knuckle sand box as described in claim 1, characterized in that: A pair of positioning components (200) are symmetrically arranged on the front and rear sides of the upper mold (101), and a pair of receiving blocks (201) are symmetrically arranged on the front and rear sides of the lower mold (100). The positioning components (200) are connected to the receiving blocks (201). A connecting block (102) is provided in the middle of the front and rear sides of the upper mold (101), and the connecting block (102) has a cavity (103) inside.

3. The mold for forming the steering knuckle sand box as described in claim 2, characterized in that: A slide rail (104) is provided on each of the left and right sides of the cavity (103). A slide plate (105) is slidably disposed between the slide rails (104). A limiting block (106) is provided on both the upper and lower surfaces of the slide plate (105). A separation piece (107) is provided on the side of the slide plate (105) close to the upper mold (101), and a plug-in block (108) is provided on the side of the slide plate (105) away from the upper mold (101).

4. The mold for forming the steering knuckle sand box as described in claim 3, characterized in that: The upper mold (101) is provided with an upper heat insulation plate (400) on both the front and rear sides, and the lower mold (100) is provided with a lower heat insulation plate (401) on both the front and rear sides.

5. The mold for forming the steering knuckle sand box as described in claim 4, characterized in that: The receiving block (201) passes through the lower heat insulation plate (401) and is welded and fixed to the lower mold (100). The receiving block (201) has a threaded hole (202) running from top to bottom.

6. The mold for forming the steering knuckle sand box as described in claim 5, characterized in that: Each of the positioning components (200) includes a positioning block (203), which passes through the upper heat insulation plate (400) and is welded and fixed to the upper mold (101). The positioning block (203) has an upper threaded hole (204) running from top to bottom. A threaded rod (205) is provided in the upper threaded hole (204). The threaded rod (205) corresponds to the lower threaded hole (202). A heat insulation sleeve (206) is provided at the upper end of the threaded rod (205), and a nut (207) is provided at the upper end of the heat insulation sleeve (206).

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