CN218340983U

CN218340983U - Rear template connecting structure for die forging casting and vertical liquid die forging casting machine thereof

Info

Publication number: CN218340983U
Application number: CN202222094851.XU
Authority: CN
Inventors: 陈银涛; 孙佩义
Original assignee: Zhongshan Yitong Machinery Equipment Co ltd
Current assignee: Zhongshan Yitong Machinery Equipment Co ltd
Priority date: 2022-08-09
Filing date: 2022-08-09
Publication date: 2023-01-20
Anticipated expiration: 2032-08-09

Abstract

The utility model discloses a rear template connecting structure for die forging casting and a vertical liquid die forging casting machine thereof, which comprises a movable template, a rear template, a die locking piston rod and two sets of die opening and closing oil cylinder assemblies, wherein the two sets of die opening and closing oil cylinder assemblies are symmetrically arranged at two sides of the rear template, and the die locking piston rod is sleeved in the middle of the rear template in a sliding way; the movable mould plate is respectively sleeved with at least two guide posts in a sliding manner, and the movable mould plate is driven by the two groups of mould opening and closing oil cylinder assemblies and the mould locking piston rods to move up and down relative to the rear mould plate; the rear template comprises a substrate, a mold locking cylinder body and guide post sleeves, connecting walls are arranged between the mold locking cylinder body and all the guide post sleeves, and the mold locking cylinder body, all the guide post sleeves and the connecting walls are arranged on the same surface of the substrate and extend in one direction; a mode locking inner cavity and an inner cavity spigot which are communicated with each other are arranged in the mode locking cylinder body, and a mode locking cylinder front cover is fixedly sleeved in the inner cavity spigot; the rear template adopts a split design, so that each part can be conveniently cast and processed, the sealing element can be conveniently and subsequently replaced and maintained, and the production quality and efficiency are improved.

Description

Rear template connecting structure for die forging casting and vertical liquid die forging casting machine thereof

[ technical field ] A

The utility model relates to a casting equipment technical field, more specifically say so, relate to a be used for as cast back template connection structure of die forging and vertical liquid die forging casting machine thereof.

[ background of the invention ]

The existing extrusion casting (liquid die forging) technology is widely applied to industries such as national defense and military industry, transportation, 3D forming, communication mobile phones and the like, and becomes one of important technologies for realizing the formation of complex parts with less cutting and no cutting in the advanced manufacturing technology. In the existing vertical liquid die forging casting machine, a rear template is an important part of the casting machine, the rear template is connected with a movable template through a die locking mechanism, the rear template, the die locking mechanism and the movable template are matched together to complete the die opening and closing action of the casting machine, and the quality of the structure of the rear template directly influences the production quality and the use stability of the vertical liquid die forging casting machine and directly influences the service life of equipment.

The rear template of the existing vertical liquid die forging casting machine not only serves as an important stress supporting part, but also serves as a cylinder sleeve of a mold locking oil cylinder and has the function of bearing high-pressure hydraulic oil. For example, patent publication No. CN21 4023424U discloses a vertical mold locking device, in which the rear mold plate mainly adopts an integral casting technique, and the design structure is complex, the casting difficulty is high, and the processing is difficult. Because the casting difficulty is high, the quality of the casting is difficult to control, and casting defects often occur, high-pressure hydraulic oil in the inner cavity of the rear template leaks from the wall of the casting; and the mould locking oil pocket adopts integrative design in the middle of the back template, directly cooperates with the mould locking piston rod, and back template and mould locking piston rod fitting surface need process sealed oil groove, because back template structure is complicated, the shape is strange and different, and processing difficulty hardly guarantees the machining precision, like this, just causes back template use a period back, and the phenomenon of oil seepage appears in the sealed department around the mould locking piston rod, because sealed problem leads to unable continuous production. In addition, the rear template is integrally cast, and once problems occur, the production efficiency is seriously influenced because parts are huge, the replacement cost is high, and the maintenance is very difficult.

Therefore, the technical problem to be solved by the technical personnel in the field needs to be solved how to improve the stability of the vertical liquid die forging casting machine and the quality of the rear template casting and facilitate the maintenance of equipment.

[ Utility model ] content

The utility model provides a pair of a back template connection structure for die forging casting and vertical liquid die forging casting machine thereof has simple structure, makes things convenient for the casting processing, and the reliability is high, and the foundry goods is of high quality, and easy to assemble and maintenance effectively reduces assembly debugging time and improves production efficiency.

The embodiment of the utility model provides an adopted technical scheme is:

in a first aspect, the embodiment provides a rear template connecting structure for die forging casting, which cooperates with a mold locking mechanism and a movable template to complete mold opening and closing actions of casting, and comprises the movable template, the rear template, a mold locking piston rod and two sets of mold opening and closing oil cylinder assemblies, wherein the bottom end of the mold locking piston rod is connected to the movable template, the two sets of mold opening and closing oil cylinder assemblies are symmetrically arranged on two sides of the rear template, and the mold locking piston rod is slidably sleeved in the middle of the rear template;

the movable mould plate is respectively sleeved with at least two guide posts in a sliding manner, the rear mould plate is fixed at the tail end of each guide post through a rear mould nut and a guide post pressing plate, and the movable mould plate is driven by the two groups of mould opening and closing oil cylinder assemblies and the mould locking piston rods to move up and down relative to the rear mould plate under the guidance of the mould locking piston rods and all the guide posts;

the rear template comprises a substrate, a mold locking cylinder body matched with the mold locking piston rod and a guide post sleeve in sliding fit with each guide post, the mold locking cylinder body is arranged in the center of the substrate, a connecting wall for mutual connection between the mold locking cylinder body and all the guide post sleeves is arranged between the mold locking cylinder body and all the guide post sleeves, and the mold locking cylinder body, all the guide post sleeves and the connecting wall on the rear template are arranged on the same surface of the substrate and extend in one direction;

the mould locking cylinder is characterized in that a mould locking inner cavity and an inner cavity spigot which are communicated with each other are arranged in the mould locking cylinder body, a mould locking cylinder front cover which is in sliding fit with the mould locking piston rod and seals the mould locking inner cavity is fixedly sleeved in the inner cavity spigot, and a sealing element oil groove which is in high-requirement sealing fit with the inner cavity spigot on the mould locking cylinder body is formed in the outer wall of the mould locking cylinder front cover.

Preferably, the upper end of the inner cavity of the mold locking is provided with an oil filling port and an oil inlet, and the lower end of the inner cavity of the mold locking is provided with an oil drainage port.

Preferably, an oil filling base is installed on an oil filling opening corresponding to the mode locking inner cavity at the upper end of the mode locking cylinder body, an oil filling opening and closing oil cylinder is installed at the upper end of the oil filling base, the front end of the oil filling opening and closing oil cylinder is connected with an oil filling valve block, and an oil filling wear ring is installed at the lower end of the oil filling base.

Preferably, all the guide post sleeves are symmetrically distributed around the mold locking cylinder body, and bottom surface fillets are arranged at the joints of the base plate and the mold locking cylinder body and at the joints of the guide post sleeves and the connecting wall.

Preferably, the connection wall with the junction top of mode locking cylinder body still is provided with the strengthening rib, the connection wall with the left and right sides of mode locking cylinder body junction still is provided with the transition circular arc.

Preferably, a guide post hole is formed in the middle of the guide post sleeve, and a lightening hole is formed in the middle of each guide post hole.

Preferably, the left side and the right side of the base plate on the rear template are provided with die opening and closing oil cylinder mounting positions, the lower side of the base plate is provided with a mechanical lock assembly mounting position, and the guide post sleeves on the left side and the right side are symmetrically provided with hoisting lugs.

In a second aspect, the embodiment provides a vertical liquid die forging casting machine, which comprises a rear die plate, wherein the rear die plate adopts the rear die plate connecting structure for die forging casting.

The utility model discloses at least one embodiment's beneficial effect is:

the rear template adopts a split design, a mold locking cylinder front cover is arranged between the rear template and the mold locking piston rod, the size of the mold locking cylinder front cover part is small, the shape of the mold locking cylinder front cover part is regular, the mold locking cylinder front cover part is convenient to machine on a lathe, and the machining precision can be effectively guaranteed. Meanwhile, after the split design is adopted, only one inner cavity spigot needs to be processed on the rear template, the processing requirements of general processing equipment can be guaranteed, the processing difficulty is reduced, the oil leakage phenomenon between the rear template and the mold locking piston rod caused by the problem of processing precision is avoided, and meanwhile, the split design also facilitates subsequent replacement and maintenance of the sealing element.

In addition, the mould locking cylinder body on the back template, guide post cover and connecting wall arrange in the same side of base plate, and be a direction extension, the junction all passes through with smooth and slick surface between the three, and do not have other obvious bulge all around at the mould locking cylinder body, need not additionally arrange the psammitolite to the casting, guaranteed that whole back template structural design is simple, the casting molding is convenient, the yield and the quality of back template foundry goods have effectively been improved, the back template inner chamber high pressure hydraulic oil from foundry goods wall seepage phenomenon has appeared in having avoided the equipment use. And still be provided with the draining port on the back template, through draining port oil drain, make things convenient for follow-up maintenance more.

Meanwhile, the oil-filled wear-resistant ring and the oil-filled base are designed in a split mode, so that the oil-filled wear-resistant ring is convenient to process, replace and maintain.

[ description of the drawings ]

Fig. 1 is a partial schematic view of a rear template and a liquid die forging casting machine thereof provided by the embodiment of the invention;

FIG. 2 is a partial cross-sectional view of a rear template and a liquid forging casting machine thereof provided by the embodiment of the invention

Fig. 3 is a schematic perspective view of a rear template provided by an embodiment of the present invention;

fig. 4 is a front view of a rear template provided by an embodiment of the present invention;

fig. 5 is a front view of a rear template provided by an embodiment of the present invention;

fig. 6 isbase:Sub>A cross-sectional view ofbase:Sub>A rear templatebase:Sub>A-base:Sub>A provided by an embodiment of the present invention;

fig. 7 is a cross-sectional view of a rear mold plate B-B provided by an embodiment of the present invention.

Reference numerals are as follows:

1. moving the template; 2. a rear template; 20. a substrate; 21. a mold locking cylinder body; 210. a mold locking inner cavity; 211. A spigot of the inner cavity; 22. a guide post sleeve; 220. a guide post hole; 221. lightening holes; 23. a connecting wall; 3. a mold locking piston rod; 4. the mould oil cylinder assembly is opened and closed; 5. a guide post; 6. a rear die nut; 7. a guide pillar pressing plate; 8. a mold-locking cylinder front cover; 80. a seal oil groove; 9. an oil filling port; 10. an oil inlet; 11. an oil drainage port; 12. an oil-filled base; 13. an oil-filled opening and closing oil cylinder; 14. an oil-filled valve block; 15. an oil-filled wear ring; 16. the bottom surface is rounded; 17. reinforcing ribs; 18. a transition arc; 19. opening and closing the die oil cylinder mounting position; 24. a mechanical lock assembly; 25. lifting lugs; 26. an oil tank; 27. a lock body mounting position;

[ detailed description ] A

The embodiment provides a rear template connecting structure for die forging casting, as shown in fig. 1 to 7, which is used for a vertical liquid die forging casting machine, and is matched with a die locking mechanism and a movable template to complete the die opening and closing action of casting, and comprises a movable template 1, a rear template 2, a die locking piston rod 3 and two groups of die opening and closing oil cylinder assemblies 4, wherein the bottom end of the die locking piston rod 3 is connected to the movable template 1, the two groups of die opening and closing oil cylinder assemblies 4 are symmetrically arranged on two sides of the rear template 2, and the die locking piston rod 3 is sleeved in the middle of the rear template 2 in a sliding manner; four guide posts 5 are respectively slidably sleeved at four corners of the movable template 1, the rear template 2 is fixed at the tail end of each guide post 5 through a rear template nut 6 and a guide post pressing plate 7, and the movable template 1 is driven by two groups of mold opening and closing oil cylinder assemblies 4 and a mold locking piston rod 3 to move up and down relative to the rear template 2 along the guide of the mold locking piston rod 3 and all the guide posts 5.

As shown in fig. 1 to 7, the rear mold plate 2 includes a base plate 20, a mold locking cylinder 21 engaged with the mold locking piston rod 3, and a guide post sleeve 22 slidably engaged with each guide post 5, the mold locking cylinder 21 is disposed at the center of the base plate 20, and a connecting wall 23 for connecting the mold locking cylinder 21 and all the guide post sleeves 22 is disposed between the mold locking cylinder 21 and all the guide post sleeves 22, wherein the mold locking cylinder 21, all the guide post sleeves 22, and the connecting wall 23 of the rear mold plate 2 are disposed on the same plane of the base plate 20 and extend in one direction; be provided with the mode locking inner chamber 210 and the inner chamber tang 211 that link up each other in this mode locking cylinder body 21, mode locking inner chamber 210 and mode locking piston rod 3 sliding fit, and be fixed with in inner chamber tang 211 endotheca with mode locking piston rod 3 sliding fit and to the sealed mode locking cylinder protecgulum 8 of mode locking inner chamber 210, this mode locking cylinder protecgulum 8 outer wall offer with mode locking cylinder body 21 upper chamber tang 211 high requirement sealing member oil groove 80 of cooperation.

Through adopting the design of

back template

2 and 8 components of a whole that can function independently of mode locking jar protecgulums, not only make things convenient for follow-up change sealing member and maintenance, can also avoid dismouting back template. Compared with the prior art in which the rear template is integrally designed, the rear template is directly matched with the mold locking piston rod in a sealing manner, so that the rear template needs to use a boring cutter to machine a sealing element oil groove with high requirements on large-scale equipment, but when the boring cutter is used on the large-scale equipment to machine a sealing element oil groove with large diameter and narrow width, the vibration cutter is easy to generate, and the machining requirements are difficult to ensure. In the embodiment, the rear template 2 adopts a split design, and a front cover 8 of the mold locking cylinder is sleeved between the rear template 2 and the mold locking piston rod 3, so that when the mold is machined and manufactured, the lower end of the inner cavity 210 of the upper mold of the rear template 2 only needs to be provided with a step hole of the inner cavity spigot 211, the inner cavity spigot 211 and the front cover 8 of the mold locking cylinder are matched and hermetically mounted, and then the front cover 8 of the mold locking cylinder and the mold locking piston rod 3 are hermetically matched and mounted; the high-requirement oil grooves 80 of the sealing element are all processed on the mold locking cylinder front cover 8, and the mold locking cylinder front cover 8 is small in part size and regular in shape, so that the processing is convenient on a lathe, and the processing precision can be guaranteed; simultaneously only need on back template 2 process inner chamber tang 211 can, because of the processing degree of difficulty is not high, general processing equipment can both guarantee the processing requirement of its inner chamber tang 211, makes its processing degree of difficulty greatly reduced.

Continuing as shown in fig. 1-7, still be provided with filling oil port 9 and oil inlet 10 in mode locking inner chamber 210 upper end, mode locking inner chamber 210 lower extreme is provided with draining port 11, through set up draining port 11 on back template 2, after relevant equipment such as movable mould board 1 used for a long time, the sealing member is difficult to avoid ageing needs to be changed, at this moment, directly put the reserve oil drum through draining port 11 with the hydraulic oil in mode locking inner chamber 210, it is more convenient and fast to maintain like this, avoided very loaded down with trivial details to use the oil-well pump to pump from the oil tank, and is simple and convenient.

As shown in fig. 1 to 7, an oil filling base 12 is further installed on the oil filling port 9 corresponding to the mode locking cavity 210 at the upper end of the mode locking cylinder body 21, an oil filling opening and closing cylinder 13 is installed at the upper end of the oil filling base 12, an oil filling valve block 14 is further connected to the front end of the oil filling opening and closing cylinder 13, and an oil filling wear-resistant ring 15 is installed at the lower end of the oil filling base 12. The reason is that when the mold locking device works, the oil filling opening and closing oil cylinder 13 drives the oil filling valve block 14 to move up and down, and the oil filling valve block 14 and the oil filling wear-resistant ring 15 are in motion fit to open and close the oil filling port 9, so that hydraulic oil in the oil tank 26 enters the mold locking inner cavity 210 to be controlled. In a mode locking state, the oil filling valve block 14 is attached to the oil filling wear-resistant ring 15, the hydraulic oil pressure in the mode locking inner cavity 210 is very high, the contact force between the oil filling valve block 14 and the oil filling wear-resistant ring 15 is very large, and the oil filling wear-resistant ring 15 is very easy to damage in the repeated opening and closing contact process. In the prior art, the oil-filled wear-resisting ring 15 and the oil-filled base 12 are integrally cast and formed, and the subsequent replacement and maintenance are very inconvenient. In the embodiment, the oil-filled wear-resistant ring 15 and the oil-filled base 12 are in a split design, the oil-filled wear-resistant ring 15 is simple to process and convenient to replace and maintain, and the problems of high cost and troublesome disassembly and assembly of the oil-filled base 12 are solved.

In addition, as shown in fig. 1 to 7, four guide post sleeves 22 are symmetrically distributed around the mold clamping cylinder 21, and bottom surface fillets 16 are arranged at the joints of the base plate 20 and the mold clamping cylinder 21 and the joints of the guide post sleeves 22 and the connecting wall 23; a reinforcing rib 17 is further arranged above the joint of the connecting wall 23 and the mold locking cylinder body 21, and transition arcs 18 are further arranged on the left side and the right side of the joint of the connecting wall 23 and the mold locking cylinder body 21; a guide post hole 220 is arranged in the middle of the guide post sleeve 22, and a lightening hole 221 is arranged in the middle of each guide post hole 220. And the left and right sides of the base plate 20 on the rear template 2 are provided with mold opening and closing oil cylinder mounting positions 19, the lower side of the base plate 2 is provided with a lock body mounting position 27 of a mechanical lock assembly 24, and the left and right guide post sleeves 22 are symmetrically provided with hoisting lugs 25. This is because, in the mold locking state, the hydraulic oil pressure in the mold locking cavity 210 in the rear mold plate 2 is very high, and the four guide post sleeves 22 on the rear mold plate 2 are fixed at the tail ends of the guide posts 5, so that the mold locking force is concentrated on the mold locking cylinder 21; the rear template 2 is provided with the connecting wall 23 and the reinforcing ribs 17 which are symmetrically arranged, so that the mold locking force can be uniformly dispersed to the four guide post sleeves 22, and meanwhile, the transition arcs 18 on the left side and the right side of the joint of the connecting wall 23 and the mold locking cylinder body 21 can effectively avoid stress concentration.

Moreover, the mold locking cylinder body 21, the four guide post sleeves 22 and the connecting wall 23 on the rear template 2 are arranged on the same surface of the substrate 20 and extend in one direction, the joints among the mold locking cylinder body 21 are in smooth curved surface transition, and no other obvious convex parts are arranged on the periphery of the mold locking cylinder body 21, so that no extra sand core needs to be arranged for casting. The whole rear template 2 is simple in structure, convenient to cast and model, few in casting defects and easy to control the casting quality. Therefore, the final produced rear template has good quality and high yield. Therefore, the phenomenon that high-pressure hydraulic oil in the inner cavity of the rear template leaks from the wall of a casting is ensured to be difficult to occur when the equipment is used.

In this embodiment, because the back template adopts the components of a whole that can function independently design, make things convenient for each part casting processing, the effectual processing degree of difficulty that reduces each part still further improves the reliability that each part was connected after the assembly simultaneously, and convenient follow-up change sealing member and maintenance effectively reduce assembly debugging time and improvement production efficiency simultaneously.

In the description of the present invention, it should be noted that the terms "left", "right", "upper", "lower", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship that the utility model is conventionally placed when the utility model is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

The above-mentioned embodiment is only the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent changes made by the shape, structure and principle of the present invention should be covered in the protection scope of the present invention.

Claims

1. A rear template connecting structure for die forging casting is matched with a mold locking mechanism and a movable template to complete the mold opening and closing actions of casting, and is characterized by comprising the movable template, the rear template, a mold locking piston rod and two groups of mold opening and closing oil cylinder assemblies, wherein the bottom end of the mold locking piston rod is connected to the movable template;

the mould locking device is characterized in that a mould locking inner cavity and an inner cavity spigot which are communicated with each other are arranged in the mould locking cylinder body, a mould locking cylinder front cover which is in sliding fit with the mould locking piston rod and seals the mould locking inner cavity is fixedly sleeved in the inner cavity spigot, and a sealing element oil groove which is in sealing fit with the mould locking cylinder body and has high requirement on the spigot of the inner cavity is formed in the outer wall of the mould locking cylinder front cover.

2. The rear die plate connecting structure for die forging casting according to claim 1, wherein an oil filling port and an oil inlet are formed in an upper end of the inner cavity of the die locking, and an oil draining port is formed in a lower end of the inner cavity of the die locking.

3. The connecting structure of the rear die plate for die forging casting according to claim 2, wherein an oil filling base is mounted on the upper end of the die locking cylinder body at the oil filling port corresponding to the die locking cavity, an oil filling opening and closing cylinder is mounted on the upper end of the oil filling base, an oil filling valve block is connected to the front end of the oil filling opening and closing cylinder, and an oil filling wear ring is mounted on the lower end of the oil filling base.

4. The connecting structure for the die forging casting rear die plate according to claim 1, wherein all the guide post sleeves are symmetrically distributed around the die locking cylinder body, and bottom surface fillets are arranged at the joints of the base plate and the die locking cylinder body and at the joints of the guide post sleeves and the connecting wall.

5. The rear mold plate connecting structure for die forging casting according to claim 1, wherein a reinforcing rib is further provided above a junction of the connecting wall and the mold clamping cylinder, and transition arcs are further provided on left and right sides of the junction of the connecting wall and the mold clamping cylinder.

6. The die forging casting rear die plate connecting structure according to claim 1, wherein the guide post sleeve is provided with guide post holes in the middle, and each guide post hole is provided with a lightening hole in the middle.

7. The rear template connecting structure for die forging casting according to claim 1, wherein the rear template is provided with open-close die cylinder mounting positions on the left and right sides of the base plate and mechanical lock assembly mounting positions on the lower side of the base plate, and hoisting lugs are symmetrically arranged on the guide post sleeves on the left and right sides.

8. A vertical liquid die forging casting machine comprising a rear die plate, wherein the rear die plate is provided with a rear die plate connecting structure for die forging casting according to any one of claims 1 to 7.