Rapid positioning connection structure of casting mold

Abstract

The utility model discloses a casting mould quick positioning connecting structure, including upper die and lower die, the die cavity surface clamping of upper die has lower die, still include three order positioning groove, fixed pin mechanism, mould spin hole and stop spin hole, the die cavity surface rectangle distribution of upper die is equipped with three order positioning groove, through setting three order positioning groove at upper die, and lower die place sets up mould spin hole and stop spin hole for assembling fixed pin mechanism, and the fixed pin mechanism of lower die place containing head fixed column, vice fixed platform, main fixed platform can cooperate three order positioning groove and form three point contact surface formula positioning connection, and the positioning butt joint level is increased significantly, can realize the positioning of upper die and lower die fast and accurately, and the composite installation mode of main fixed platform rear tail spin column cooperation inner hexagonal bolt at lower die, both solve the problem of single thread installation instability, and when the positioning part wears, through the convenient spin disassembly operation realizes the quick replacement of positioning structure.

Description

Technical Field

[0001] This utility model relates to the field of casting mold technology, and in particular to a quick positioning connection structure for casting molds. Background Technology

[0002] Casting molds are key process equipment for obtaining qualified castings. They determine the shape, size, precision, and surface quality of the castings. By pouring liquid metal into the mold cavity and allowing it to cool and solidify, a casting with the same shape as the mold cavity can be obtained. The upper and lower molds of the casting mold are closed to form a closed cavity, which can be used for casting workpieces.

[0003] In existing casting molds, the upper and lower molds are usually equipped with locating pins and locating holes for quick positioning during docking. However, these locating pins are prone to wear in the long-term positioning friction environment. Furthermore, locating pins using threaded connection installation cannot guarantee installation stability due to their single thread structure, which can easily lead to loosening at the mold positioning connection structure. In addition, simple cylindrical locating pins have fewer positioning docking surfaces, which is not conducive to the rapid and accurate positioning of casting molds. Therefore, we propose a rapid positioning connection structure for casting molds. Utility Model Content

[0004] The main objective of this invention is to provide a rapid positioning connection structure for casting molds. By setting a three-tiered positioning groove in the upper mold and a mold rotation hole and anti-rotation hole in the lower mold for assembling a positioning pin mechanism, when the three-tiered positioning groove of the upper mold aligns with the lower mold, the positioning pin mechanism in the lower mold, including the head positioning column, auxiliary positioning platform, and main positioning platform, can cooperate with the three-tiered positioning groove to form a three-point contact surface positioning connection. Compared to traditional single column-shaped positioning pins, this significantly increases the positioning and docking surfaces, greatly improving positioning accuracy. It can quickly and accurately achieve positioning of the upper and lower molds. Furthermore, the composite installation method of the tail rotation column behind the main positioning platform combined with the internal hexagon bolts in the lower mold solves the problem of instability in single-thread installation and allows for quick replacement through convenient screw-and-disassemble operations when positioning components are worn. The concealed fixing of the internal hexagon bolts prevents the main positioning platform from rotating out of control, effectively extending the mold's service life, reducing maintenance and time costs, and providing a reliable guarantee for the continuity and stability of casting production. This effectively solves the problems in the background technology.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A quick-positioning connection structure for casting molds includes an upper mold and a lower mold. The upper mold cavity surface is fitted with the lower mold. The structure also includes a three-stage positioning groove, a fixing pin mechanism, a mold rotation hole, and an anti-rotation hole. The upper mold cavity surface has three-stage positioning grooves arranged in a rectangular pattern. A mold rotation hole is provided on the lower mold surface on one side of the three-stage positioning groove. An anti-rotation hole is provided on the lower mold surface on one side of the mold rotation hole. The fixing pin mechanism includes a tail-rotating column, a main fixing platform, a front rotating column, a secondary fixing platform, and a head fixing column. The tail-rotating column is screwed into the mold rotation hole. A main fixing platform is integrally formed on one side of the tail-rotating column. The outer platform surface of the main fixing platform away from the tail-rotating column has a protruding front rotating column for screwing the secondary fixing platform. An internal hex bolt is screwed into the anti-rotation hole on the side of the front rotating column of the main fixing platform. A head fixing column is protruding on the outer platform surface of the secondary fixing platform away from the main fixing platform. The main fixing platform, secondary fixing platform, and head fixing column are engaged in the three-stage positioning groove.

[0007] Furthermore, a T-shaped through hole is provided on the surface of the main fixed platform on one side of the front rotating column, and an internal hex bolt is screwed between the T-shaped through hole and the anti-rotation hole, with the head of the internal hex bolt screwed into the large cavity of the T-shaped through hole;

[0008] By adopting the above technical solution, the internal hex bolt can be screwed into the anti-rotation hole from the T-shaped through hole for connection, so that the head of the internal hex bolt can be hidden in the large cavity of the T-shaped through hole.

[0009] Furthermore, the surface of the secondary fixed platform is provided with a secondary rotating hole, and a front rotating column is screwed into the secondary rotating hole;

[0010] By adopting the above technical solution, the auxiliary fixed platform can be connected to the front rotating column by rotating the auxiliary rotating hole.

[0011] Furthermore, the auxiliary fixed platform has a recessed flat groove on the edge of the platform near the auxiliary rotating hole, and four sets of flat grooves are formed on the outer side of the auxiliary fixed platform.

[0012] By adopting the above technical solution, when rotating the auxiliary fixed platform, a wrench can be used to hold it in the flat groove to rotate the auxiliary fixed platform.

[0013] Furthermore, a flat groove is provided on the edge of the main fixed platform near the front rotating column, and four sets of flat grooves are provided on the edge of the main fixed platform.

[0014] By adopting the above technical solution, when the main station is rotated, a wrench can be used to rotate the main station by locking it in the flat groove.

[0015] Furthermore, the head of the head column is provided with an arc-shaped head, and the tail column of the head column is integrally formed and connected with the small platform head of the auxiliary platform.

[0016] By adopting the above technical solution, the head stationary column can be locked in the deepest cavity of the three-stage positioning groove with its arc-shaped column head, and then the auxiliary stationary platform can be locked in the middle cavity of the three-stage positioning groove in conjunction with the head stationary column.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] This utility model provides a three-tiered positioning groove in the upper mold and a mold rotation hole and anti-rotation hole in the lower mold for assembling a positioning pin mechanism. When the three-tiered positioning groove of the upper mold is connected to the lower mold, the positioning pin mechanism in the lower mold, which includes a head positioning column, a secondary positioning platform, and a main positioning platform, can cooperate with the three-tiered positioning groove to form a three-point contact surface positioning connection. Compared with the traditional single column positioning pin, this significantly increases the positioning connection layer, greatly improves the positioning accuracy, and enables the positioning of the upper mold and the lower mold to be achieved quickly and accurately.

[0019] Furthermore, the combined installation method of the tailstock at the rear of the main stationary platform and the internal hex bolts at the lower mold not only solves the problem of unstable installation with a single thread, but also allows for quick replacement through convenient screwing and disassembly when the positioning components are worn. In addition, the hidden fixing of the internal hex bolts can prevent the main stationary platform from loosening due to reverse rotation, effectively extending the service life of the mold, reducing maintenance and time costs, and providing a reliable guarantee for the continuity and stability of casting production. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the quick positioning and connection structure for casting molds of this utility model.

[0021] Figure 2 This is a split diagram of the quick positioning and connection structure for the casting mold of this utility model.

[0022] Figure 3 This is a schematic diagram showing the pin mechanism and the disassembly of the lower mold in the quick positioning and connection structure of the casting mold of this utility model.

[0023] Figure 4 This is an exploded view of the pin-fixing mechanism of the quick positioning and connection structure for casting molds of this utility model.

[0024] In the diagram: 1. Upper mold; 2. Lower mold; 3. Three-stage positioning groove; 4. Fixed pin mechanism; 5. Tail-rotating column; 6. Main fixed platform; 7. Front rotating column; 8. T-shaped through hole; 9. Hex socket head cap screw; 10. Secondary fixed platform; 11. Head fixed column; 12. Secondary rotating hole; 13. Mold rotating hole; 14. Anti-rotation hole. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0026] like Figure 1-4As shown, the quick-positioning connection structure for casting mold includes an upper mold 1 and a lower mold 2. The lower mold 2 is fitted onto the cavity surface of the upper mold 1. The structure also includes a three-tiered positioning groove 3, a fixing pin mechanism 4, a mold rotation hole 13, and an anti-rotation hole 14. The upper mold 1 has three-tiered positioning grooves 3 arranged in a rectangular pattern on its cavity surface. A mold rotation hole 13 is provided on one side of the lower mold 2 where the three-tiered positioning groove 3 is located. An anti-rotation hole 14 is provided on the surface of the lower mold 2 on one side of the mold rotation hole 13. The fixing pin mechanism 4 includes a tail-rotating column 5, a main fixing platform 6, and a front-rotating column. 7. A secondary fixed platform 10 and a head fixed post 11, a tail rotating post 5 is screwed into the mold rotating hole 13, and a main fixed platform 6 is integrally formed on one side of the tail rotating post 5. The outer platform surface of the main fixed platform 6 away from the tail rotating post 5 has a protruding front rotating post 7 for screwing the secondary fixed platform 10, and the main fixed platform 6 on the side of the front rotating post 7 is screwed into the anti-rotation hole 14 with an internal hex bolt 9. The outer platform surface of the secondary fixed platform 10 away from the main fixed platform 6 has a protruding head fixed post 11, and the main fixed platform 6, the secondary fixed platform 10 and the head fixed post 11 are inserted into the three-stage positioning groove 3.

[0027] Among them, a T-shaped through hole 8 is provided on the surface of the main fixed platform 6 on one side of the front rotating column 7, and an internal hex bolt 9 is screwed between the T-shaped through hole 8 and the anti-rotation hole 14, and the head of the internal hex bolt 9 is screwed into the large cavity of the T-shaped through hole 8.

[0028] By adopting the above technical solution, the internal hex bolt 9 can be screwed into the anti-rotation hole 14 from the T-shaped through hole 8 for connection, so that the head of the internal hex bolt 9 can be hidden in the large cavity of the T-shaped through hole 8.

[0029] The auxiliary fixed platform 10 has an auxiliary rotating hole 12 on its platform surface, and a front rotating column 7 is screwed into the auxiliary rotating hole 12.

[0030] By adopting the above technical solution, the auxiliary fixed platform 10 can be connected to the front rotating column 7 by means of the auxiliary rotating hole 12.

[0031] Among them, the auxiliary fixed platform 10 has a flat groove recessed at the edge of the platform near the auxiliary rotating hole 12, and four sets of flat grooves are formed on the outer side of the auxiliary fixed platform 10.

[0032] By adopting the above technical solution, when rotating the auxiliary fixed platform 10, a wrench can be used to hold the auxiliary fixed platform 10 in the flat groove to rotate it.

[0033] Among them, the main fixed platform 6 has a flat groove on the edge of the platform near the front rotating column 7, and four sets of flat grooves are formed on the edge of the main fixed platform 6.

[0034] By adopting the above technical solution, when the main stationary platform 6 is rotated, a wrench can be used to rotate the main stationary platform 6 by locking it in the flat groove.

[0035] The head of the head post 11 is provided with an arc-shaped head, and the tail post of the head post 11 is integrally formed and connected with the small platform head of the auxiliary platform 10.

[0036] By adopting the above technical solution, the head post 11 can be locked in the deepest cavity of the three-stage positioning groove 3 with its arc-shaped head, and then the auxiliary platform 10 can cooperate with the head post 11 to be locked in the middle cavity of the three-stage positioning groove 3.

[0037] It should be noted that this utility model is a quick positioning connection structure for casting molds. A three-stage positioning groove 3 is provided at the upper mold 1, while a mold rotation hole 13 and a non-rotation hole 14 are provided at the lower mold 2 for assembling the fixing pin mechanism 4. The main fixing platform 6 of the fixing pin mechanism 4 is screwed into the mold rotation hole 13 by the tail rotation column 5. Subsequently, the hexagon socket bolt 9 can be screwed into the non-rotation hole 14 of the lower mold 2 from the T-shaped through hole 8 of the main fixing platform 6. The head of the hexagon socket bolt 9 can be hidden in the large cavity of the T-shaped through hole 8. Subsequently, the auxiliary fixing platform 10 can be screwed into the front rotation column 7 of the main fixing platform 6. When the lower mold 2 is connected to the upper mold 1 for casting, the head fixing column 11, the auxiliary fixing platform 10 and the main fixing platform 6 of the lower mold 2 can be inserted into the three-stage positioning groove of the upper mold 1. The upper mold 1 and the lower mold 2 are connected by a three-point contact surface for positioning. After the upper mold 1 and the lower mold 2 are opened in opposite directions, the head fixed post 11, the auxiliary fixed platform 10 and the main fixed platform 6 can be pulled out from the three-stage positioning groove 3. When the head fixed post 11, the auxiliary fixed platform 10 and the main fixed platform 6 are worn, the auxiliary fixed platform 10 can be rotated away from the main fixed platform 6. Then the internal hex bolt 9 at the main fixed platform 6 can be rotated outward. Subsequently, the tail rotating post 5 can be rotated out from the mold rotating hole 13 of the lower mold 2, so as to replace the head fixed post 11, the auxiliary fixed platform 10 and the main fixed platform 6. The internal hex bolt 9 at the main fixed platform 6 is screwed off at the lower mold 2 to prevent the main fixed platform 6 from rotating outward at the lower mold 2.

[0038] It should be noted that this utility model is a quick positioning connection structure for casting molds. All components in this utility model are known to those skilled in the art, and their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A quick-positioning connection structure for casting molds, comprising an upper mold (1) and a lower mold (2), wherein the lower mold (2) is fitted onto the cavity surface of the upper mold (1), characterized in that: It also includes a three-stage positioning groove (3), a fixing pin mechanism (4), a mold rotation hole (13), and an anti-rotation hole (14). The upper mold (1) has a rectangular distribution of three-stage positioning grooves (3) on its cavity surface, and a mold rotation hole (13) is provided on the lower mold (2) on one side of the three-stage positioning groove (3). An anti-rotation hole (14) is provided on the surface of the lower mold (2) on one side of the mold rotation hole (13). The fixing pin mechanism (4) includes a tail rotation column (5), a main fixing platform (6), a front rotation column (7), a secondary fixing platform (10), and a head fixing column (11). The mold rotation hole (13) The main platform (6) is integrally formed on one side of the tail-spinning column (5) and the outer platform surface of the main platform (6) away from the tail-spinning column (5) has a front-spinning column (7) for screwing the auxiliary platform (10). The main platform (6) on the side of the front-spinning column (7) is screwed with an internal hex bolt (9) to the anti-spinning hole (14). The outer platform surface of the auxiliary platform (10) away from the main platform (6) has a head-fixing column (11). The main platform (6), auxiliary platform (10) and head-fixing column (11) are inserted into the three-stage positioning groove (3).

2. The quick positioning connection structure for casting molds according to claim 1, characterized in that: A T-shaped through hole (8) is provided on the surface of the main fixed platform (6) on one side of the front rotating column (7), and an internal hex bolt (9) is screwed between the T-shaped through hole (8) and the anti-rotation hole (14), with the head of the internal hex bolt (9) screwed into the large cavity of the T-shaped through hole (8).

3. The quick positioning connection structure for casting molds according to claim 1, characterized in that: The secondary fixed platform (10) has a secondary rotating hole (12) on its surface, and a front rotating column (7) is screwed into the secondary rotating hole (12).

4. The quick positioning connection structure for casting molds according to claim 3, characterized in that: The auxiliary fixed platform (10) has a flat groove recessed at the edge of the platform near the auxiliary rotating hole (12), and four sets of flat grooves are formed on the outer side of the auxiliary fixed platform (10).

5. The quick positioning connection structure for casting molds according to claim 1, characterized in that: The main fixed platform (6) has a flat groove on the edge of the platform near the front rotating column (7), and there are four sets of flat grooves on the edge of the main fixed platform (6).

6. The quick positioning connection structure for casting molds according to claim 1, characterized in that: The head of the head post (11) is provided with an arc-shaped head, and the tail post of the head post (11) is integrally formed and connected with the small platform head of the auxiliary platform (10).

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