Combined type die assembly for precision casting production and machining

Abstract

The utility model discloses a combined type precision casting production and processing mould assembly, which comprises an upper mould, a lower mould and an auxiliary positioning piece, the lower surface of the upper mould is provided with a plurality of positioning rods, the surface of each positioning rod is provided with an anti-abrasion piece, the surface of the lower mould is provided with a plurality of sleeves, the positioning rods are in rolling connection with the sleeves through the anti-abrasion pieces, and the auxiliary positioning piece is arranged on the lower surface of the upper mould. The anti-abrasion piece prevents the positioning rod and the sleeve from being abraded mutually, the auxiliary positioning piece is installed on the surfaces of the upper die and the lower die, and the positioning rod is matched with the auxiliary positioning piece so that the upper die and the lower die can be correctly closed. When the upper die and the lower die are assembled, the positioning rods are inserted into the sleeves, and the balls enter the sleeves, the positioning rods are prevented from being in direct contact with the sleeves through rolling of the balls, and when the die is frequently used, abrasion of the positioning rods and the sleeves can be remarkably reduced, the problem of loosening of the assembled die is prevented, abrasion of the die is reduced, the service life of the die is prolonged, and the maintenance frequency is reduced.

Description

Technical Field

[0001] This utility model relates to the field of casting mold technology, specifically a modular mold assembly for precision casting production and processing. Background Technology

[0002] Casting production involves pouring a fluid into the cavity of a mold. After the liquid cools and solidifies, a part with the exact same shape and structure as the mold is formed. To improve the precision of castings, the mold closing accuracy needs to be kept high.

[0003] In related technologies, a search revealed a solution for a sand casting mold (announcement number) in which a base plate is fixedly installed at the bottom of the uprights to support the entire mold. There are four uprights in total, which pass through the four corners of the upper mold body, the support plate, and the base plate in sequence, so as to achieve precise mold closing between the upper mold body and the lower mold body.

[0004] However, the mold used in the above scheme relies on four uprights to close the mold. When the mold is used frequently for a long time, wear problems can easily occur between the uprights and the upper mold body. This can easily lead to deviations in the mold closing accuracy between the upper and lower mold bodies, which not only reduces the casting quality but also requires frequent mold maintenance. Utility Model Content

[0005] The purpose of this invention is to provide a modular mold assembly for precision casting production and processing, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a combined precision casting production and processing mold assembly, including an upper mold, wherein a plurality of positioning rods are provided on the lower surface of the upper mold, and wear-resistant parts are installed on the surface of the positioning rods;

[0007] The lower mold has several sleeves installed on its surface. The positioning rod is connected to the sleeves by a wear-resistant component. The wear-resistant component prevents the positioning rod and the sleeve from wearing each other, reduces the wear of the positioning rod, and also prevents the sleeve from wearing. Long-term use can ensure the quality of the casting.

[0008] An auxiliary positioning component is installed on the surfaces of the upper and lower molds. The positioning rod works in conjunction with the auxiliary positioning component to ensure that the upper and lower molds close correctly, providing a double guarantee for mold closing, preventing errors in mold closing, and making the mold more stable in use.

[0009] Furthermore, the lower mold is screwed with an internal hexagon bolt through a receiving port, and the internal hexagon bolt abuts against the sleeve. The inner wall of the sleeve has an opening, so when the sleeve is worn, it can be replaced without replacing the lower mold, thus saving costs.

[0010] Furthermore, the lower surface of the lower mold is connected to a base via a positioning rod, a wear-resistant component, and a sleeve, with the sleeve placed inside the base. Therefore, when the lower mold is in a buffering state, there will be no wear problem, and the mold as a whole is more durable.

[0011] Furthermore, the auxiliary positioning component includes a protrusion and a concave part, which are respectively connected to the upper mold and the lower mold. The surfaces of the upper mold and the lower mold are provided with fixing grooves, and the protrusion and the concave part are placed inside the fixing grooves. By means of the interlocking of the protrusion and the concave part, the upper mold and the lower mold can be accurately closed, thus ensuring accurate mold closing.

[0012] Furthermore, the wear-resistant component includes several balls and several positioning frames. The positioning frames are fitted onto the surface of the balls, and adjacent positioning frames are connected by connecting pieces. The surface of the positioning rod is provided with an arc groove, and the balls are in rolling connection with the arc groove. The balls are used to reduce mechanical wear and extend the life of the mold.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) When the upper and lower molds are closed, the positioning rod is inserted into the sleeve. When the ball enters the sleeve, the rolling of the ball prevents the positioning rod from directly contacting the sleeve. When the mold is used frequently, the wear of the positioning rod and the sleeve can be significantly reduced, preventing the mold from loosening, reducing mold wear, extending mold life, and reducing maintenance frequency.

[0015] (2) When the sleeve is worn, unscrew the internal hex bolt to separate it from the sleeve. Then insert the tool into the opening to remove the sleeve from the lower mold. Replace the sleeve separately without replacing the mold. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model, showing the upper and lower molds separated.

[0017] Figure 2 This is a schematic diagram of the connection between the positioning rod and the ball bearing of this utility model;

[0018] Figure 3 This is a top view of the connection between the ball bearing and the positioning frame in this utility model;

[0019] Figure 4 This is a top view of the positioning rod of this utility model;

[0020] Figure 5 This is a schematic diagram showing the connection between the upper and lower molds of this utility model;

[0021] Figure 6 This is a schematic diagram of the connection between the positioning rod and the sleeve of this utility model.

[0022] In the diagram: 1. Upper mold; 2. Lower mold; 3. Base; 4. Protrusion; 5. Concave part; 6. Positioning rod; 7. Ball bearing; 8. Nitrogen spring; 9. Arc groove; 10. Positioning bracket; 11. Connecting piece; 12. Fixing groove; 13. Sleeve; 14. Opening; 15. Socket headstock bolt; 16. Receiving port. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example:

[0025] Please see Figure 1-6 This utility model provides a technical solution: a combined precision casting production and processing mold assembly, including an upper mold 1, the lower surface of the upper mold 1 is provided with a plurality of positioning rods 6, and the surface of the positioning rods 6 is equipped with anti-wear parts;

[0026] The lower mold 2 has several sleeves 13 installed on its surface. The positioning rod 6 is connected to the sleeves 13 by a wear-resistant component. The wear-resistant component prevents the positioning rod 6 and the sleeves 13 from wearing each other and reduces the wear between the positioning rod 6 and the sleeves 13. When the mold is used at high frequency, the mold closing accuracy will not be significantly reduced, thus improving the yield of casting production.

[0027] An auxiliary positioning component is installed on the surfaces of the upper mold 1 and the lower mold 2. The positioning rod 6 cooperates with the auxiliary positioning component to ensure that the upper mold 1 and the lower mold 2 are correctly closed. This auxiliary positioning component helps to ensure the closure of the upper mold 1 and the lower mold 2. It can also prevent a significant reduction in the closure accuracy when the mold is worn.

[0028] In this embodiment, as Figure 6 As shown, the lower mold 2 is screwed with an internal hex bolt 15 through the receiving port 16, and the internal hex bolt 15 abuts against the sleeve 13. The inner wall of the sleeve 13 is provided with an opening 14. When the sleeve 13 is worn and needs to be replaced, first loosen the internal hex bolt 15, and use the corresponding tool to insert into the sleeve 13. When the tool is inserted into the opening 14, the sleeve 13 can be taken out from the lower mold 2.

[0029] In this embodiment, the lower surface of the lower mold 2 is connected to the base 3 via the positioning rod 6, the wear-resistant component, and the sleeve 13, and the sleeve 13 is placed inside the base 3. Referring to the connection between the lower mold 2 and the sleeve 13, when the lower mold 2 is buffered, the wear between the lower mold 2 and the base 3 is also reduced.

[0030] In this embodiment, as Figure 1 As shown, several nitrogen springs 8 are installed on the upper surface of the base 3. The nitrogen springs 8 press against the lower mold 2. When the upper mold 1 and the lower mold 2 are closed, the lower mold 2 moves downward to compress the nitrogen springs 8. The nitrogen springs 8 play a buffering role on the lower mold 2.

[0031] In this embodiment, as Figure 1 As shown, the auxiliary positioning component includes a protrusion 4 and a concave part 5. The protrusion 4 and the concave part 5 are respectively connected to the upper mold 1 and the lower mold 2. When the upper mold 1 and the lower mold 2 are closed, the protrusion 4 is inserted into the concave part 5, which can assist the mold closing accuracy of the upper mold 1 and the lower mold 2. Lubricating oil can be applied to the protrusion 4 and the concave part 5 to reduce wear.

[0032] In this embodiment, as Figure 6 As shown, the upper mold 1 and the lower mold 2 are provided with fixing grooves 12. The protrusion 4 and the concave part 5 are placed inside the fixing grooves 12 and fixed with screws. When the protrusion 4 and the concave part 5 are worn, it is easy to replace the protrusion 4 and the concave part 5.

[0033] In this embodiment, as Figure 2 and Figure 3 As shown, the wear-resistant component includes several balls 7 and several positioning frames 10. The positioning frames 10 are fitted on the surface of the balls 7, and adjacent positioning frames 10 are connected by connecting pieces 11. The positioning frames 10 can ensure that the balls 7 do not contact each other and also reduce the rolling resistance of the balls 7.

[0034] In this embodiment, as Figure 2 and Figure 4 As shown, the positioning rod 6 has an arc groove 9 on its surface, and the ball 7 is rolled in connection with the arc groove 9, which can prevent the ball 7 from running off-center and ensure stable assembly of the ball 7.

[0035] Specifically, during use, when the upper mold 1 and lower mold 2 are in the process of mold closing, the positioning rod 6 is inserted into the sleeve 13, and the ball 7 rolls in the sleeve 13, guiding the upper mold 1 and lower mold 2 to close accurately. The ball 7 is not easily worn, and can maintain the state of accurate mold closing even after long-term use. The protrusion 4 is inserted into the concave part 5, which also helps to maintain the mold closing accuracy.

[0036] After the upper mold 1 and the lower mold 2 are closed, the lower mold 2 moves down, and the positioning rod 6 and the ball 7 located in the lower mold 2 enter the sleeve 13 installed in the base 3, ensuring that the wear of the entire mold is lower.

[0037] When the sleeve 13 is worn, first loosen the hex bolt 15, and use a tool to remove the sleeve 13 through the opening 14. Alternatively, you can loosen the screws to replace the protrusion 4 and the concave part 5.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A modular mold assembly for precision casting production and processing, characterized in that, include: The upper mold (1) has a plurality of positioning rods (6) on its lower surface, and the surface of the positioning rods (6) is fitted with anti-wear parts; The lower mold (2) has several sleeves (13) installed on its surface. The positioning rod (6) is connected to the sleeves (13) by a wear-resistant component, which prevents the positioning rod (6) and the sleeves (13) from wearing each other. An auxiliary positioning component is installed on the surfaces of the upper mold (1) and the lower mold (2). The positioning rod (6) cooperates with the auxiliary positioning component to ensure that the upper mold (1) and the lower mold (2) are correctly closed.

2. The modular mold assembly for precision casting production and processing according to claim 1, characterized in that: The lower mold (2) is screwed with an internal hexagonal bolt (15) through the receiving port (16), and the internal hexagonal bolt (15) abuts against the sleeve (13). The inner wall of the sleeve (13) is provided with an opening (14).

3. The mold assembly for combined precision casting production and processing according to claim 1, characterized in that: The lower surface of the lower mold (2) is connected to the base (3) via a positioning rod (6), a wear-resistant part, and a sleeve (13), and the sleeve (13) is placed inside the base (3).

4. The mold assembly for combined precision casting production and processing according to claim 3, characterized in that: Several nitrogen springs (8) are installed on the upper surface of the base (3), and the nitrogen springs (8) press against the lower mold (2).

5. A modular mold assembly for precision casting production and processing according to claim 1, characterized in that: The auxiliary positioning component includes a protrusion (4) and a concave part (5), which are connected to the upper mold (1) and the lower mold (2) respectively.

6. A modular mold assembly for precision casting production and processing according to claim 5, characterized in that: The upper mold (1) and lower mold (2) are provided with fixing grooves (12), and the protrusion (4) and concave part (5) are placed inside the fixing grooves (12).

7. A modular mold assembly for precision casting production and processing according to claim 1, characterized in that: The wear-resistant component includes several balls (7) and several positioning frames (10). The positioning frames (10) are fitted on the surface of the balls (7), and adjacent positioning frames (10) are connected by connecting pieces (11).

8. A modular mold assembly for precision casting production and processing according to claim 7, characterized in that: The positioning rod (6) has an arc groove (9) on its surface, and the ball (7) is in rolling connection with the arc groove (9).

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