CN220920854U - Side forming type casting die - Google Patents

Abstract

The utility model relates to a side forming casting mould, comprising: the casting mold comprises a lower mold fixing plate, a lower mold plate fixed in the lower mold fixing plate, a mold core arranged in the lower mold plate, a side forming block arranged outside the mold core in a relatively movable manner, a casting cavity arranged between the mold core and the side forming block, a side forming column fixed on the side forming block and penetrating through the casting cavity, an upper mold fixing plate arranged at the top of the lower mold plate in a lifting manner, an upper mold plate fixed at the bottom of the upper mold fixing plate, a main runner arranged at the bottom of the upper mold plate, a casting column fixed on the upper mold fixing plate and a runner arranged in the casting column. According to the utility model, the main body structure of the pump housing is molded by arranging four groups of side molding blocks which slide relatively on the outer side of the core, and the side fixing holes are molded by fixing the side molding columns on the side molding blocks, so that the pump housing is integrally cast, the processing efficiency is improved, and the carrying cost is reduced.

Description

Side forming type casting die

Technical Field

The utility model belongs to the technical field of casting molds, and particularly relates to a side forming type casting mold.

Background

Casting is a process in which liquid metal is cast into a casting cavity that conforms to the shape of the part, and after it has cooled to solidify, the part or blank is obtained. The casting process can produce parts with complex shapes, has the advantages of wide sources of raw materials, low price and the like, and is generally applied to the machinery manufacturing industry, the automobile manufacturing industry, the building industry and the like.

The pump housing 35 shown in fig. 1 is generally applied to a hydraulic steering machine of a mine car or an engineering vehicle for mounting an oil pump, and the pump housing 35 includes a housing body 36, a reinforcing rib 37, an inner cavity 38, a main fixing hole 39, a side fixing hole 40, and the like. The housing body 36 is cylindrical and has a closed end and an open end. The inner cavity 38 inside the shell body 36 is used for installing an oil transfer pump, and the reinforcing ribs 37 are integrally connected to the outer peripheral surface of the shell body 36 for improving the structural strength of the shell body 36. The main fixing hole 39 is circumferentially formed at the open end of the case body 36, and after the oil transfer pump is mounted, the cover is covered at the open end of the case body 36, and then the fastening screw is passed through the main fixing hole 39 to fix the cover and the case body 36. The side fixing hole 40 is opened at one side of the casing body 36 for fixing the casing body 36 to a bracket, thereby achieving the fixation of the entire pump casing 35.

Since the pump housing 35 has the side fixing holes 40 horizontally provided, in order to avoid interference during mold opening, the pump housing 35 is generally processed in two steps, the main body structure of the pump housing 35 is cast by a casting mold first, and then the semi-finished product is placed on a drilling machine to process the side fixing holes 40.

The existing pump housing 35 processing needs to be performed in two steps, so that the processing time is prolonged, and an operator is required to carry the semi-finished product to the next station in the processing process, so that the cost is wasted.

Disclosure of utility model

The utility model aims to overcome the defects of low processing efficiency and high cost caused by the fact that the processing of a pump shell in the prior art needs to be carried out in two steps.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a side-molding casting mold, comprising:

The casting mold comprises a lower mold fixing plate, a lower mold plate fixed in the lower mold fixing plate, a mold core arranged in the lower mold plate, a side forming block arranged outside the mold core in a relatively movable manner, a casting cavity arranged between the mold core and the side forming block, a side forming column fixed on the side forming block and penetrating into the casting cavity, an upper mold fixing plate arranged at the top of the lower mold plate in a lifting manner, an upper mold plate fixed at the bottom of the upper mold fixing plate, a main runner arranged at the bottom of the upper mold plate, a casting column fixed on the upper mold fixing plate and a runner arranged in the casting column, wherein the runner is communicated with the main runner, and the main runner is communicated with the casting cavity.

Optimally, the side forming block is fixed on the inner side of the side sliding block.

Optimally, the upper die fixing plate further comprises a bump integrally connected to the bottom of the upper die fixing plate, an inclined pin groove formed in the inner side of the bump, and an inclined pin plate fixed in the inclined pin groove, wherein when the upper die fixing plate descends to the lower die fixing plate, the inclined pin plate is propped against the outer side of the side sliding block.

Optimally, the side forming block is arranged in the forming block groove.

Optimally, the die fixing device further comprises a guide sleeve embedded in the lower die fixing plate and a guide post fixed at the bottom of the upper die fixing plate, and when the upper die fixing plate descends, the guide post is inserted in the guide sleeve.

Optimally, the device also comprises a supporting plate fixed at the bottom of the lower die fixing plate, a lifting plate arranged in the supporting plate in a lifting manner and a push rod fixed on the lifting plate, wherein the push rod is arranged in the casting cavity and the auxiliary cold material well in a penetrating manner.

Optimally, the air cylinder also comprises a slot arranged on the side sliding block and a plug fixed at the top of the air cylinder and matched with the slot.

Due to the application of the technical scheme, compared with the prior art, the utility model has the following advantages:

according to the side molding type casting mold, the main body structure of the pump housing is molded by arranging four groups of side molding blocks which slide relatively on the outer side of the mold core, the side molding columns are fixed on the side molding blocks to mold the side fixing holes, and the side molding blocks drive the side molding columns to open outwards during mold opening, so that interference is avoided, the pump housing is integrally cast, the processing efficiency is improved, the carrying cost is reduced, the performance of the product is improved due to integral casting, and the defect that cracks appear in the product due to drilling is avoided;

Further, the main cold material well and the auxiliary cold material well are arranged for accommodating the part of the front end of the sizing material which is cooled in advance, so that the defect of cracks of the formed product caused by uneven cooling is avoided, and the qualification rate of the product is improved;

Further, the service life of the die is prolonged, the maintenance cost is reduced, and the casting reliability is improved by arranging the side wear-resistant bars and the bottom wear-resistant bars;

Further, the guide post is guided by the guide sleeve, so that the accuracy of the position of the upper die plate after the die assembly with the lower die plate is ensured.

Drawings

FIG. 1 is a schematic view of a pump housing to be cast according to the present utility model;

FIG. 2 is a schematic diagram of the structure of the present utility model;

FIG. 3 is a front view of the present utility model;

FIG. 4 is a schematic view of the structure of the present utility model with the upper die fixing plate removed;

FIG. 5 is a schematic view of the structure of the present utility model with the upper die plate and upper plate removed;

FIG. 6 is a schematic illustration of the structure of FIG. 5 with the core removed in accordance with the present utility model;

FIG. 7 is a top view of FIG. 6 in accordance with the present utility model;

FIG. 8 is an enlarged view of the utility model at A in FIG. 6;

FIG. 9 is a schematic view of the structure of the upper die fixing plate of the present utility model;

FIG. 10 is a schematic view of the structure of the upper plate of the present utility model;

FIG. 11 is a cross-sectional view of the present utility model at the casting column;

FIG. 12 is a schematic view of the structure of the lower die fixing plate of the present utility model;

FIG. 13 is a schematic view of the structure of the lower die plate of the present utility model;

FIG. 14 is a cross-sectional view of a core and side molding block of the present utility model;

reference numerals illustrate:

1. A lower die fixing plate; 2. a lower template; 3. an upper die fixing plate; 4. an upper template; 5. pouring into a trough; 6. a bump; 7. oblique pin grooves; 8. an inclined pin plate; 9. casting a column; 10. a thermal insulation sleeve; 11. pouring gate; 12. a flow guiding block; 13. a feed inlet; 14. a main flow passage; 15. a main cold material well; 16. forming a column; 17. a core; 18. a guide post; 19. guide sleeve; 20. a side molding block; 21. a cavity; 22. a casting cavity; 23. a side chute; 24. side wear strips; 25. a bottom wear strip; 26. a side slider; 27. a side forming column; 28. a cylinder; 29. a slot; 30. a plug; 31. an auxiliary cold material well; 32. forming a block groove; 33. a support plate; 34. a lifting plate; 35. a pump housing; 36. a housing body; 37. reinforcing ribs; 38. an inner cavity; 39. a main fixing hole; 40. side fixing holes.

Detailed Description

The utility model will be further described with reference to examples of embodiments shown in the drawings.

As shown in fig. 2 to 7, which are schematic views showing the structure of the side molding type casting mold of the present utility model, it is generally used for casting the pump housing 35 shown in fig. 1, and the pump housing 35 is generally applied to a hydraulic steering gear of a mine car or an engineering car for mounting an oil transfer pump, and the pump housing 35 includes a housing body 36, a reinforcing rib 37, an inner cavity 38, a main fixing hole 39, a side fixing hole 40, and the like. The housing body 36 is cylindrical and has a closed end and an open end. The inner cavity 38 inside the shell body 36 is used for installing an oil transfer pump, and the reinforcing ribs 37 are integrally connected to the outer peripheral surface of the shell body 36 for improving the structural strength of the shell body 36. The main fixing hole 39 is circumferentially formed at the open end of the case body 36, and after the oil transfer pump is mounted, the cover is covered at the open end of the case body 36, and then the fastening screw is passed through the main fixing hole 39 to fix the cover and the case body 36. The side fixing hole 40 is opened at one side of the casing body 36 for fixing the casing body 36 to a bracket, thereby achieving the fixation of the entire pump casing 35.

The two supporting plates 33 are fixed at intervals at the top of the casting machine table, and clamping plates are integrally connected to the bottoms of the inner sides of the two supporting plates 33 and used for supporting the lifting plates 34. The lifting plate 34 is disposed between the two support plates 33, and is driven by the lifting cylinder below to perform lifting movement between the two support plates 33. When the lifting plate 34 is at the lowest position, the lifting plate 34 is erected on the two clamping plates, the lifting plate 34 is borne by the clamping plates, and the gravity of the lifting plate 34 is prevented from being applied to the lifting cylinder, so that the lifting cylinder is prevented from being damaged; when the lifting plate 34 is lifted, the ejector rods on the lifting plate 34 are driven to synchronously lift, and then the cast product is ejected.

The lower die fixing plate 1 is fixed on top of two support plates 33, as shown in fig. 12, which is a schematic structural view of the lower die fixing plate 1, and the inner side of the lower die fixing plate 1 is used for fixing the lower die plate 2. Four sets of side sliding grooves 23 are formed in the lower die fixing plate 1, two pairs of side sliding grooves 26 are arranged in the side sliding grooves 23 in a sliding mode and used for driving the side forming blocks 20 to synchronously move inwards, and then casting of the pump housing 35 is completed.

The lower die plate 2 is fixed inside the lower die fixing plate 1 and is flush with the upper surface of the lower die fixing plate 1, as shown in fig. 13, which is a schematic structural view of the lower die plate 2. The lower die plate 2 is provided with a forming block groove 32 matched with the side sliding groove 23, and four groups of side forming blocks 20 are respectively arranged in the forming block groove 32 and connected with the side sliding block 26. When the side slide block 26 slides in the side slide groove 23, the side forming block 20 is synchronously driven to slide in the forming block groove 32. The inside shaping structure that is provided with pump housing 35 bottom matched with of lower bolster 2, and be provided with in the outside of this shaping structure rather than being linked together vice cold charge well 31 for hold sizing material front end cooling in advance part, avoid the defect that the shaping product leads to appearing the crack because the cooling is uneven, improve the qualification rate of product.

As shown in fig. 5-8, a side wear strip 24 is fixed on the inner side wall of the side chute 23, a bottom wear strip 25 is fixed at the bottom of the side chute 23, a side sliding block 26 is arranged in the side chute 23, the bottom of the side sliding block 26 is propped against the bottom wear strip 25, two sides of the side sliding block 26 are propped against the side wear strip 24, and the service life of the die is prolonged, the maintenance cost is reduced, and the casting reliability is improved by arranging the side wear strip 24 and the bottom wear strip 25. The cylinder 28 is fixed on the outer side of the lower die plate 2, and a guide rod of the cylinder 28 is connected with the side sliding block 26 and used for driving the side sliding block 26 to slide, and the side forming block 20 is fixed on the inner side of the side sliding block 26 and synchronously slides along with the side sliding block 26.

As shown in fig. 5, the slot 29 is formed on the side sliding block 26, the plug 30 is connected to the guide rod of the air cylinder 28 and inserted into the slot 29, and when the air cylinder 28 drives the side sliding block 26 to slide by means of the cooperation of the plug 30 and the slot 29, looseness between the piston rod and the side sliding block 26 can be avoided.

During actual casting, the four groups of side forming blocks 20 synchronously move inwards to gather together under the drive of the side sliding blocks 26, a cavity 21 is formed between the four groups of side forming blocks 20, the core 17 descends into the cavity 21, a casting cavity 22 is formed between the core 17 and the cavity 21, molten sizing material flows into the casting cavity 22 to form a pump shell 35, the core 17 is firstly taken out during mold opening, the side sliding blocks 26 are driven to synchronously move outwards through the four groups of air cylinders 28, the four groups of side forming blocks 20 are driven to synchronously open outwards, and finally a molded product is ejected.

As shown in fig. 8, the side molding columns 27 are fixed on the side molding block 20 and extend into the casting cavity 22, and the side fixing holes 40 of the pump housing 35 are molded by the side molding columns 27, so that the side molding columns 27 are synchronously opened outwards along with the side molding block 20 during mold opening, thereby facilitating mold opening.

The upper die fixing plate 3 is arranged above the lower die fixing plate 1 in a lifting manner, the guide sleeve 19 is embedded on the lower die fixing plate 1, the guide pillar 18 is fixed at the bottom of the upper die fixing plate 3 and matched with the guide sleeve 19, when the upper die fixing plate 3 descends, the guide pillar 18 can be inserted into the guide sleeve 19, the guide pillar 18 is guided by the guide sleeve 19, and the accuracy of the position of the upper die plate 4 after the die assembly with the lower die plate 2 is ensured.

As shown in fig. 9, the upper die fixing plate 3 is schematically shown in structure, and the upper die fixing plate 3 is provided with a through casting slot 5 for mounting a casting column 9. The lug 6 is integrally arranged at the bottom of the upper die fixing plate 3, the inclined pin groove 7 is formed in the inner side of the lug 6, the inclined pin plate 8 is fixed in the inclined pin groove 7, after the side sliding block 26 drives the side forming block 20 to gather inwards, the upper die fixing plate 3 descends to prop against the upper surface of the lower die fixing plate 1, at the moment, the inclined pin plate 8 descends to prop against the outer side of the side sliding block 26, and the side sliding block 26 is limited.

The upper die plate 4 is fixed at the bottom of the upper die fixing plate 3, and moves synchronously with the upper die fixing plate 3, as shown in fig. 10, which is a schematic structural diagram of the upper die plate 4, and the bottom of the upper die plate 4 is provided with a structure matched with the pump housing 35 for forming the top structure of the pump housing 35. The bottom of the upper template 4 is provided with a main runner 14, and external melted sizing material flows into the casting cavity 22 through the main runner 14 for forming. The main cold material well 15 is arranged at the bottom of the upper die plate 4 and is opposite to the main runner 14, and the main cold material well 15 is used for accommodating the cooled part of the front end of the sizing material, so that the qualification rate of cast products is improved. The upper molding column 16 is fixed in the upper die plate 4 for molding the main fixing hole 39 of the pump housing 35, and is opened outwardly with the upper die plate 4 when the die is opened. The core 17 is also fixed at the bottom of the upper die plate 4, the upper die plate 4 drives the core 17 to be inserted into the cavity 21 for molding during die assembly, and the core 17 is outwards opened along with the upper die plate 4 during die opening.

As shown in fig. 11, the casting column 9 is fixed in the casting trough 5, and the runner 11 vertically penetrates the casting column 9 for injection of the external molten rubber. The heat preservation sleeve 10 is sleeved on the pouring column 9, so that the pouring material injected into the pouring column 9 is prevented from being cooled, and the pouring effect is prevented from being influenced. The guide block 12 is fixed at the top of the side sliding block 26, and a feed inlet 13 is formed in the inner side of the guide block 12, and the feed inlet 13 is communicated with the main runner 14 and used for conveying casting materials into the main runner 14.

The casting process of the side forming type casting mould of the utility model is as follows:

Firstly, a cylinder 28 drives a side sliding block 26 to move inwards, then drives four groups of side forming blocks 20 to move inwards, the inner sides of the four groups of side forming blocks 20 form a cavity 21, an upper die fixing plate 3 drives an upper die plate 4 to descend until a core 17 is inserted into the cavity 21, an upper forming column 16 is inserted into a casting cavity 22, and at the moment, an inclined pin plate 8 is abutted against the outer sides of the side sliding blocks 26;

The molten casting material is injected into the pouring channel 11, the sizing material flows into the casting cavity 22 through the feeding hole 13 and the main runner 14, the main cold material well 15 and the auxiliary cold material well 31 are arranged for accommodating the part of the sizing material, which is cooled in advance, so that the defect of cracks of a formed product due to uneven cooling is avoided, the qualification rate of the product is improved, the upper die fixing plate 3 and the upper die plate 4 are firstly opened after casting is finished, then the air cylinder 28 drives the four groups of side forming blocks 20 to be opened outwards, the side forming columns 27 are pulled out from the casting cavity 22 along with the side forming blocks 20, and finally the product is ejected out by the ejector rod.

The above embodiments are provided to illustrate the technical concept and features of the present utility model and are intended to enable those skilled in the art to understand the content of the present utility model and implement the same, and are not intended to limit the scope of the present utility model. All equivalent changes or modifications made in accordance with the spirit of the present utility model should be construed to be included in the scope of the present utility model.

Claims (7)

1. A side-molding casting mold, comprising:

The casting mold comprises a lower mold fixing plate (1), a lower mold plate (2) fixed in the lower mold fixing plate (1), a core (17) arranged in the lower mold plate (2), a side forming block (20) arranged outside the core (17) in a relatively movable mode, a casting cavity (22) arranged between the core (17) and the side forming block (20), a side forming column (27) fixed on the side forming block (20) and penetrating through the casting cavity (22), an upper mold fixing plate (3) arranged at the top of the lower mold plate (2) in a lifting mode, an upper mold plate (4) fixed at the bottom of the upper mold fixing plate (3), a main runner (14) arranged at the bottom of the upper mold plate (4), a casting column (9) fixed on the upper mold fixing plate (3) and a runner (11) arranged in the casting column (9), wherein the runner (11) is communicated with the main runner (14), and the main runner (14) is communicated with the casting cavity (22).

2. A side-molding casting mold according to claim 1, wherein: the side sliding block forming device is characterized by further comprising a side sliding groove (23) formed in the lower die fixing plate (1), side wear-resisting strips (24) fixed on the inner side wall of the side sliding groove (23), bottom wear-resisting strips (25) fixed at the bottom of the side sliding groove (23), side sliding blocks (26) arranged between the side wear-resisting strips (24) and the bottom wear-resisting strips (25) and air cylinders (28) fixed on the outer side of the lower die fixing plate (1) and connected with the side sliding blocks (26), wherein the side forming blocks (20) are fixed on the inner side of the side sliding blocks (26).

3. A side-molding casting mold according to claim 2, wherein: the upper die fixing plate (3) is lowered to the lower die fixing plate (1) and then the inclined pin plate (8) is abutted to the outer side of the side sliding block (26).

4. A side-molding casting mold according to claim 1, wherein: the side forming block (20) is arranged in the forming block groove (32).

5. A side-molding casting mold according to claim 1, wherein: the die fixing device further comprises a guide sleeve (19) embedded in the lower die fixing plate (1) and a guide pillar (18) fixed at the bottom of the upper die fixing plate (3), and when the upper die fixing plate (3) descends, the guide pillar (18) is inserted in the guide sleeve (19).

6. The side-molding casting mold according to claim 4, wherein: the device also comprises a supporting plate (33) fixed at the bottom of the lower die fixing plate (1), a lifting plate (34) arranged in the supporting plate (33) in a lifting manner and a push rod fixed on the lifting plate (34), wherein the push rod is arranged in the casting cavity (22) and the auxiliary cold material well (31) in a penetrating manner.

7. A side-molding casting mold according to claim 2, wherein: the air cylinder is characterized by further comprising a slot (29) formed in the side sliding block (26) and a plug (30) fixed to the top of the air cylinder (28) and matched with the slot (29).