CN216801586U

CN216801586U - Wax mould is pressed in twice gyration

Info

Publication number: CN216801586U
Application number: CN202220111326.1U
Authority: CN
Inventors: 侯荣刚
Original assignee: Jiangsu Yonghan Special Alloy Technology Co ltd
Current assignee: Jiangsu Yonghan Special Alloy Technology Co ltd
Priority date: 2022-01-17
Filing date: 2022-01-17
Publication date: 2022-06-24
Anticipated expiration: 2032-01-17

Abstract

The utility model relates to a twice-rotating wax-pressing die which comprises a base plate, wherein the top of one end of the base plate is connected with an upper die plate through a twice-rotating structure, a die insert is arranged on the base plate opposite to the upper die plate, a wax injection nozzle is arranged on the die insert, an upper die pressing block is arranged above the die insert, a clamping block is arranged on the outer side of the die insert, and a handle is arranged on the side surface of the upper die plate; the two-time rotary structure comprises a rotating shaft fixing block and a rotary fixing block, and the rotating shaft fixing block is fixedly arranged in the middle of the top surface of the end face of the bottom plate. The utility model has simple structure and small occupied space; according to the not enough of blade wax mould that presses in the past existence in making, this novel mechanism has reduced mould gyration size for heavy combustion engine blade can satisfy the practicality of conventional lathe, and has solved about the die sinking and has turned round die sinking ceramic core location inconsistent problem (if for hollow blade, increase corresponding pilot pin in this mould structure and can realize the uniformity under gravity state when the wax mould is put into to the ceramic core.

Description

Wax mould is pressed in twice gyration

Technical Field

The utility model belongs to the technical field of molds, and relates to a wax pressing mold capable of rotating twice.

Background

In the past, a wax pressing die mostly adopts an upper die and a lower die added split structure and a rotary die opening structure over a rotary center, the structure of the upper die and the lower die and the split has a plurality of defects on blade products, parting lines easily appear on blade bodies of the products, the rotary characteristics of an inner edge plate and an outer edge plate need to be formed by a plurality of inserts, the inserts are difficult to position in the die, the consistency is poor, the parting lines of the edge plate are more, and meanwhile, a plurality of problems also exist in the positioning of a ceramic core 6 point of a hollow blade in a wax pressing stage. And the conventional rotary die opening can only realize a blade product with a small radius, if the rotary center is large, a lot of difficulties exist in processing and manufacturing, and the conventional wax pressing machine is difficult to meet the requirement of matching with the size of a die. However, a plurality of blades with large turning radius exist in the heavy-duty combustion engine, which brings a plurality of difficulties for the design and manufacture of the existing tooling die.

Disclosure of Invention

The utility model aims to provide a twice-rotating wax pressing die, which aims to improve the defects of blades (solid blades and hollow blades) of a heavy gas turbine in die design and manufacture and blade production, improve the product quality and ensure the consistency of repeated positioning of ceramic cores of the hollow blades in the wax pressing die. The mould with the structure is convenient to manufacture, avoids more parting lines, and ensures the accuracy and consistency of positioning of the ceramic core in the mould (the uniqueness of six-point positioning of the ceramic core under the self-weight state). And similar products can meet the use requirement of a conventional machine tool, the operation is simplified, and the difficulty in processing and manufacturing the die is reduced. Further improving the process stability of the product in the wax pressing stage and reducing the use of large-scale wax pressing machines.

According to the technical scheme provided by the utility model: a twice-rotation wax pressing die comprises a base plate, wherein the top of one end of the base plate is connected with an upper die plate through a twice-rotation structure, a die insert is arranged on the base plate opposite to the upper die plate, a wax injection nozzle is arranged on the die insert, an upper die pressing block is arranged above the die insert, a clamping block is arranged on the outer side of the die insert, and a handle is arranged on the side surface of the upper die plate; the two-time rotation structure comprises a rotating shaft fixing block and a rotation fixing block, the rotating shaft fixing block is fixedly arranged in the middle of the top surface of the end surface of the bottom plate, the rotation fixing blocks are arranged on two sides of the rotating shaft fixing block, and the rotation fixing blocks are fixedly arranged at the bottom of the upper template; the upper part of the rotating shaft fixing block is provided with a lifting upper chute, the lower part of the rotating shaft fixing block is provided with a lifting lower chute, and the upper end of the lifting lower chute is communicated with the lower end of the rotating chute; the upper bearings are arranged on two sides of the upper part of the rotating shaft fixing block, and the lower bearings are arranged on two sides of the lower part of the rotating shaft fixing block; the upper bearing is positioned in the lifting upper chute, and the lower bearing is positioned in the lifting lower chute and the rotating chute.

As a further improvement of the utility model, the upper bearing inner rings are arranged on two sides of the upper part of the rotating shaft fixing block through screws, and the lower bearing inner rings are arranged on two sides of the lower part of the rotating shaft fixing block through screws.

As a further improvement of the utility model, the die insert comprises an upper die insert, a lower die insert and a blade tip slide block; the upper die insert is installed at the bottom of the upper die plate, the lower die insert is installed at the top of the bottom plate, the blade tip sliding block is installed on the side faces of the upper die insert and the lower die insert in a sliding mode, and the upper die insert, the lower die insert and the blade tip sliding block enclose a blade casting die cavity.

As a further improvement of the utility model, the upper die insert comprises a first upper die insert and a second upper die insert which are adjacent, the first upper die insert and the second upper die insert are arranged at the bottom of the upper die plate through bolts, the lower die insert comprises a second lower die insert and a first lower die insert which are adjacent, and the second lower die insert and the first lower die insert are arranged at the top of the bottom plate through bolts.

As a further improvement of the utility model, the top of the bottom plate is provided with a guide groove, a guide block is slidably arranged in the guide groove, and a tip sliding block is connected above the guide block through a bolt; and casting positioning pin holes are formed in the guide blocks and the bottom plate, and casting positioning pins are placed in the casting positioning pin holes.

As a further improvement of the utility model, the wax injection nozzle consists of an upper part of the wax injection nozzle and a lower part of the wax injection nozzle, the upper part of the wax injection nozzle is arranged on the side surface of the second upper die insert, and the lower part of the wax injection nozzle is arranged on the side surface of the second lower die insert.

As a further improvement of the utility model, the two sides of the upper template are hinged with the upper ends of the supporting rods, and the two sides of the bottom plate are provided with supporting grooves.

As a further improvement of the utility model, an opening and closing auxiliary device is arranged between the bottom plate and the upper template, the opening and closing auxiliary device is an air support, the two sides of the air support bottom plate are hinged with an air support fixed end, and an air support movable end is hinged with the upper template; the gas props include first gas props and second gas props, are located the bottom plate both sides respectively.

The positive progress effect of this application lies in:

the utility model has simple structure and small occupied space; according to the not enough of blade wax mould that presses in the past existence in making, this novel mechanism has reduced the mould gyration size for heavy combustion engine blade can satisfy the practicality of conventional lathe, and has solved the problem of die sinking and gyration die sinking china clay core location nonconformity from top to bottom (if for hollow blade, increase corresponding pilot pin in this mould structure and can realize the uniformity under the gravity state when the china clay core is put into the wax mould of pressing, improved the size precision and the appearance quality of wax mould product simultaneously, practiced thrift the processing cost, reduced the mould and made the degree of difficulty, shortened mould processing manufacturing cycle.

Drawings

Fig. 1 is a front view of the present invention.

Fig. 2 is a front sectional view of the present invention.

Fig. 3 is a top cross-sectional view of the present invention.

Detailed Description

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged under appropriate circumstances in order to facilitate the description of the embodiments of the utility model herein. Furthermore, "including" and "having," and like terms, mean that "including" and "having," in addition to those already recited in "including" and "having," other content not already recited in the list; for example, a process, method, system, article, or apparatus that may comprise a list of steps or elements is not necessarily limited to those steps or elements explicitly listed, but may include other steps or elements not explicitly listed or inherent to such process, method, article, or apparatus.

In fig. 1-3, the device comprises a handle 1, a first air support 11, a bottom plate 12, a guide block 14, an upper template 21, a second air support 28, a rotating shaft fixing block 29, a support rod 32 and the like.

As shown in figure 1, the utility model relates to a twice-rotation wax-pressing die which comprises a bottom plate 12, wherein the top of one end of the bottom plate 12 is connected with an upper die plate 21 through a twice-rotation structure, a die insert is arranged on the opposite surface of the bottom plate 12 and the upper die plate 21, a wax injection nozzle is arranged on the die insert, an upper die pressing block 25 is arranged above the die insert, a wedging block 26 is arranged on the outer side of the die insert, and a handle 1 is arranged on the side surface of the upper die plate 21.

The twice-rotation structure comprises a rotating shaft fixing block 29 and a rotation fixing block, as shown in fig. 3, the rotating shaft fixing block 29 is fixedly installed at the middle position of the top surface of the end surface of the bottom plate 12, the rotation fixing blocks are arranged on two sides of the rotating shaft fixing block 29, and the rotation fixing blocks are fixedly installed at the bottom of the upper template 21. The upper part of the rotating shaft fixing block 29 is provided with a lifting upper chute 29-1, the lower part of the rotating shaft fixing block 29 is provided with a lifting lower chute 29-2, and the upper end of the lifting lower chute 29-2 is communicated with the lower end of the rotating chute 29-3. The upper bearings 5 are arranged on two sides of the upper part of the rotating shaft fixing block 29, and the lower bearings 9 are arranged on two sides of the lower part of the rotating shaft fixing block 29. The upper bearing 5 is positioned in the lifting upper chute 29-1, and the lower bearing 9 is positioned in the lifting lower chute 29-2 and the rotating chute 29-3. The inner rings of the upper bearings 5 are arranged on the two sides of the upper part of the rotating shaft fixing block 29 through screws 6, and the inner rings of the lower bearings 9 are arranged on the two sides of the lower part of the rotating shaft fixing block 29 through screws.

The die insert comprises an upper die insert, a lower die insert and a blade tip slide block 16. The upper die insert is arranged at the bottom of the upper die plate 21, the lower die insert is arranged at the top of the bottom plate 12, the blade tip sliding block 16 is arranged on the side faces of the upper die insert and the lower die insert in a sliding mode, and the upper die insert, the lower die insert and the blade tip sliding block 16 enclose a blade casting die cavity.

As shown in fig. 2, the upper die insert includes a first upper die insert 22 and a second upper die insert 24 which are adjacent to each other, the first upper die insert 22 and the second upper die insert 24 are mounted on the bottom of the upper die plate 21 through bolts, the lower die insert includes a second lower die insert 17 and a first lower die insert 19 which are adjacent to each other, and the second lower die insert 17 and the first lower die insert 19 are mounted on the top of the bottom plate 12 through bolts.

The top of the bottom plate 12 is provided with a guide groove, a guide block 14 is slidably arranged in the guide groove, and a blade tip sliding block 16 is connected above the guide block 14 through a bolt. And casting positioning pin holes are formed in the guide block 14 and the bottom plate 12, and casting positioning pins 13 are placed in the casting positioning pin holes.

The wax injection nozzle consists of a wax injection nozzle upper part 2 and a wax injection nozzle lower part 10, the wax injection nozzle upper part 2 is arranged on the side surface of the second upper die insert 24, and the wax injection nozzle lower part 10 is arranged on the side surface of the second lower die insert 17.

The upper die pressing block 25 and the wedging block 26 are arranged at the bottom of the upper die plate 21 and on the outer side of the second upper die insert 24 from inside to outside.

The upper chute 29-1, the lifting lower chute 29-2 and the rotating chute 29-3 are adaptive arc grooves.

The rotary fixing blocks comprise a first rotary fixing block 7 and a second rotary fixing block 20 which are respectively positioned at two sides of the rotary shaft fixing block 29 and fixedly arranged at the bottom of the upper template 21.

In order to keep the mold in an open state, the upper ends of the support rods 32 are hinged to both sides of the upper mold plate 21, and support grooves are formed in both sides of the bottom plate 12.

In order to reduce the labor intensity of operators, an opening and closing auxiliary device is arranged between the bottom plate 12 and the upper template 21, the opening and closing auxiliary device is an air support, the two sides of the air support bottom plate 12 are hinged with air support fixed ends, and the air support movable ends are hinged with the upper template 21. The gas struts comprise a first gas strut 11 and a second gas strut 28 which are respectively positioned at two sides of the bottom plate 12.

The working process of the utility model is as follows:

firstly, a wax pressing mould is arranged on a wax pressing machine, whether the clamping is reliable or not is checked, an injection nozzle of the machine tool is adjusted, then an operator opens the upper template 21 under the assistance of the air support 11 through the handle 1, the upper template 21 firstly moves to a stop point at the upper end of the upper lifting chute 29-1 along the upper lifting chute 29-1 through the upper bearing 5, meanwhile, the lower bearing 9 moves along the lifting lower chute 29-2 to the stop point at the upper end of the lifting lower chute 29-2, the end part of the upper template 21 is lifted, then the lower bearing 9 enters the rotating chute 29-3 with the upper bearing 5 as the rotation center to drive the upper template 21 to continue rotating until the lower bearing 9 moves the end of the rotating chute 29-3, the other end of the upper template 21 is opened, the lower end of the support rod 32 is embedded into the support groove to complete the fixing of the bottom plate 12 and the upper template 21, the pouring positioning pin 13 is pulled out, and the blade tip slide block 16 is withdrawn outwards.

And if the mould has a cold wax block or the ceramic core is placed in the mould under the state, carrying out mould closing inspection (mould closing is the reverse sequence of mould opening), if the mould does not have the cold wax block or the ceramic core, closing the mould according to the reverse sequence of mould opening, carrying out wax pressing, enabling wax materials to enter the blade casting mould cavity from the wax injection nozzle, carrying out pressure maintaining, feeding, cooling and then finishing the wax pressing process.

It will be understood that the above embodiments are merely exemplary embodiments taken to illustrate the principles of the present invention, which is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the utility model, and these modifications and improvements are also considered to be within the scope of the utility model.

Claims

1. The twice-rotating wax-pressing die is characterized by comprising a base plate (12), wherein the top of one end of the base plate (12) is connected with an upper die plate (21) through a twice-rotating structure, a die insert is arranged on the opposite surface of the base plate (12) and the upper die plate (21), a wax injection nozzle is arranged on the die insert, an upper die pressing block (25) is arranged above the die insert, a wedging block (26) is arranged on the outer side of the die insert, and a handle (1) is arranged on the side surface of the upper die plate (21); the twice-rotation structure comprises a rotating shaft fixing block (29) and a rotation fixing block, the rotating shaft fixing block (29) is fixedly arranged in the middle of the top surface of the end surface of the bottom plate (12), the rotation fixing blocks are arranged on two sides of the rotating shaft fixing block (29), and the rotation fixing blocks are fixedly arranged at the bottom of the upper template (21); the upper part of the rotating shaft fixing block (29) is provided with a lifting upper chute (29-1), the lower part of the rotating shaft fixing block (29) is provided with a lifting lower chute (29-2), and the upper end of the lifting lower chute (29-2) is communicated with the lower end of the rotating chute (29-3); the upper bearings (5) are arranged on two sides of the upper part of the rotating shaft fixing block (29), and the lower bearings (9) are arranged on two sides of the lower part of the rotating shaft fixing block (29); the upper bearing (5) is positioned in the lifting upper chute (29-1), and the lower bearing (9) is positioned in the lifting lower chute (29-2) and the rotating chute (29-3).

2. The wax pressing die capable of rotating twice as claimed in claim 1, wherein the inner rings of the upper bearing (5) are mounted on two sides of the upper part of the rotating shaft fixing block (29) through screws (6), and the inner rings of the lower bearing (9) are mounted on two sides of the lower part of the rotating shaft fixing block (29) through screws.

3. The two-revolution wax-pressing die according to claim 1, wherein the die insert comprises an upper die insert, a lower die insert and a blade tip slide block (16); the upper die insert is installed at the bottom of the upper die plate (21), the lower die insert is installed at the top of the bottom plate (12), the blade tip sliding block (16) is installed on the side faces of the upper die insert and the lower die insert in a sliding mode, and the upper die insert, the lower die insert and the blade tip sliding block (16) enclose a blade casting die cavity.

4. The two-revolution wax-pressing die as claimed in claim 3, wherein the upper die insert comprises a first upper die insert (22) and a second upper die insert (24) which are adjacent, the first upper die insert (22) and the second upper die insert (24) are mounted at the bottom of the upper die plate (21) through bolts, the lower die insert comprises a second lower die insert (17) and a first lower die insert (19) which are adjacent, and the second lower die insert (17) and the first lower die insert (19) are mounted at the top of the bottom plate (12) through bolts.

5. The twice-rotating wax-pressing die as claimed in claim 3, wherein the top of the bottom plate (12) is provided with a guide groove, a guide block (14) is slidably arranged in the guide groove, and a blade tip sliding block (16) is connected above the guide block (14) through a bolt; casting positioning pin holes are formed in the guide block (14) and the bottom plate (12), and casting positioning pins (13) are placed in the casting positioning pin holes.

6. The two-revolution wax injection mold according to claim 3, wherein the wax injection nozzle is composed of an upper wax injection nozzle part (2) and a lower wax injection nozzle part (10), the upper wax injection nozzle part (2) is installed on the side of the second upper mold insert (24), and the lower wax injection nozzle part (10) is installed on the side of the second lower mold insert (17).

7. The double-rotation wax-pressing mold according to claim 1, wherein the upper ends of the supporting rods (32) are hinged to both sides of the upper mold plate (21), and supporting grooves are formed on both sides of the bottom plate (12).

8. The wax mould according to claim 1, wherein an opening and closing auxiliary device is arranged between the bottom plate (12) and the upper template (21), the opening and closing auxiliary device is an air support, the two sides of the air support bottom plate (12) are hinged with fixed ends of the air support, and the movable ends of the air support are hinged with the upper template (21); the gas struts comprise a first gas strut (11) and a second gas strut (28) which are respectively positioned at two sides of the bottom plate (12).