SUMMERY OF THE UTILITY MODEL
The utility model provides an inner ring cold wax core forming die to solve current inner ring wax matrix and pour the shaping back deflection big, the restoration degree of difficulty is big, and then is difficult to satisfy the technical problem of designing requirement.
The utility model adopts the technical scheme as follows:
the utility model provides an inner ring cold wax core forming die for the cold wax core of inner ring in the inner ring wax mould of shaping out turbine dish wax mould, forming die includes: the top end of the lower die body is inwards concave downwards to form a lower die cavity, the top end of the lower die body is also connected with an upper die cover, the bottom end of the upper die cover is inwards concave upwards to form an upper die cavity, the upper die cavity and the lower die cavity are matched to form a forming cavity for forming an inner ring cold wax core, and the forming cavity is communicated with a wax injection pipe for guiding external molten forming liquid into the forming cavity; and a mold ejecting mechanism which is arranged in the lower mold body in a vertically sliding manner is arranged in the lower mold body and is used for moving upwards under the action of external force so as to eject the formed inner ring cold wax core upwards out of the lower mold cavity for mold stripping.
Furthermore, the forming cavity comprises a main body forming cavity for forming the main body structure of the inner ring cold wax core, a cone forming cavity for forming positioning cones arranged on the upper surface, the lower surface, the upper end face, the lower end face and the outer ring surface of the main body structure, and a connecting column for forming a communicating hole penetrating through the upper surface and the lower surface of the main body structure; the cone forming cavity is formed by concave extension in the corresponding upper die cavity and the lower die cavity; the connecting columns are connected to the corresponding lower die cavity and the upper die cavity.
Furthermore, the joint surface of the upper die cover and the lower die body is a parting surface of the inner ring cold wax core; cone forming cavities for forming positioning cones on the outer ring surface of the main body structure are symmetrically distributed on the parting surface; each connecting column comprises an upper column body fixed with the wall surface of the upper die cavity and a lower column body fixed with the wall surface of the lower die cavity, and the length of the upper column body is smaller than that of the lower column body.
Furthermore, the wax injection pipe is horizontally arranged, and the wax injection end of the wax injection pipe extends into the molding cavity from the outer edge of the molding die along a parting surface.
Further, the lower die body comprises a lower die base and a bottom die column; the lower die base is internally provided with an installation cavity communicated with two opposite side walls of the lower die base, the bottom die column is installed in the installation cavity, the top end of the bottom die column props against the top of the installation cavity, and the lower die cavity penetrates through the top of the installation cavity and then extends downwards into the bottom die column; the top die mechanism is positioned in the mounting cavity and sleeved on the outer circle of the bottom die column so as to move upwards under the action of external force, and the rear part penetrates through the top end of the mounting cavity and extends into the lower die cavity.
Furthermore, the lower die base comprises a bottom plate, two vertical plates which are oppositely arranged on the bottom plate at intervals, and a lower die block which is connected to the top ends of the two vertical plates; a mounting cavity is formed in a gap among the bottom plate, the two vertical plates and the lower module; the bottom mold column is fixed on the bottom plate, the top end of the bottom mold column props against the lower module, and the lower mold cavity penetrates through the lower module and then extends into the bottom mold column from the top end of the bottom mold column; the top die mechanism is arranged on the excircle of the bottom die column in a sliding manner, and two ends of the top die mechanism respectively extend out of the lower die base from a gap between the two vertical plates.
Furthermore, the lower die base also comprises a positioning column for positioning the installation of the lower die block and a guide column for positioning and guiding the installation of the upper die cover; the positioning columns are vertically arranged and supported at the top ends of the two vertical plates so as to be upwards inserted into positioning holes formed in the bottom ends of the lower modules; the guide post is vertically arranged and supported at the top end of the lower module so as to be upwards inserted into the guide hole formed in the bottom end of the upper die cover.
Further, the top die mechanism comprises a die drawing plate group sleeved on the excircle of the bottom die column and a plurality of die drawing columns vertically supported on the die drawing plate group; the die drawing plate group is arranged on the bottom plate, and two ends of the die drawing plate group respectively extend out of the lower die base from a gap between the two vertical plates; the mold stripping column is used for penetrating the lower mold block and extending into the lower mold cavity in the process of moving the mold stripping group upwards.
Furthermore, the stripping plate group comprises stripping plates and fixing plates which are stacked up and down in sequence; the mold lifting columns are arranged at intervals along the circumferential direction of the lower mold cavity, the bottom ends of the mold lifting columns are arranged on the fixed plate, and the opposite top ends of the mold lifting columns upwards penetrate through the mold lifting plate and then stretch into the lower mold block.
Furthermore, the top die mechanism also comprises a return rod for enabling the upward moving die drawing plate group to be stressed and returned, the return rod is vertically supported on the die drawing plate group, and the upper end of the return rod is penetrated by the lower die and then is used for being abutted to the upper die cover.
The utility model discloses following beneficial effect has:
when the inner ring cold wax core forming die is adopted, the inner ring cold wax core meeting the design requirement can be formed through the matching action of the upper die cavity and the lower die cavity, the forming quality of the inner ring cold wax core is high, the formed inner ring cold wax core can be easily discharged through the mold ejecting action of the mold ejecting mechanism, the mold discharging operation is simple, the mold discharging efficiency is high, and the mold discharging quality of the wax mold is good; on the other hand, it is big to compare direct forming out inner ring wax matrix and lead to the wax matrix deflection, it is big to restore the degree of difficulty, and then be difficult to satisfy the designing requirement, the utility model discloses in, at first pass through the utility model discloses a forming die shaping goes out the inner ring cold wax core that accords with the designing requirement, then goes out the inner ring wax matrix through this inner ring cold wax core shaping again, because the size and the thickness that the inner ring wax matrix was compared to the size and the thickness of inner ring cold wax core are little very much, so the difficult shrink deformation of the inner ring cold wax core that shaping goes out, inner ring cold wax core shaping is of high quality, further, adopt the utility model discloses a quality of the inner ring cold wax core that the forming die shaping goes out is higher, and then can effectively improve the shaping quality of inner ring wax matrix, makes it satisfy the designing requirement, finally improves the holistic shaping quality of turbine dish wax matrix, makes and can shaping out the turbine dish that accords with the designing requirement through this turbine dish wax matrix.
In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages. The present invention will be described in further detail with reference to the drawings.
Detailed Description
The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways, which are defined and covered below.
Referring to fig. 2 to 5, a preferred embodiment of the present invention provides an inner ring cold wax core forming mold for forming an inner ring cold wax core 73 in an inner ring wax mold 72 of a turbine disc wax mold 70, the forming mold comprising: lower die body 80, the top of lower die body 80 indent downwards forms die cavity 801, and the top of lower die body 80 still is connected with upper die cover 90, and the bottom of upper die cover 90 indent upwards forms die cavity 901, goes up die cavity 901 and lower die cavity 801 mating reaction and forms the shaping chamber that is used for shaping inner ring cold wax core 73, and the shaping chamber intercommunication has the notes wax pipe 100 that is used for the leading-in shaping chamber of outside fused shaping liquid. The lower die body 80 is internally provided with a top die mechanism 110 which is arranged in a vertically sliding manner, and the top die mechanism 110 is used for moving upwards under the action of external force so as to push the molded inner ring cold wax core 73 upwards out of the lower die cavity 801 for demolding.
The utility model discloses an inner ring cold wax core forming die during operation, at first with the top of upper mould lid 90 fixed connection to die body 80 down, then in the shaping chamber between upper mould lid 90 and the lower die body 80 is injected with outside melting wax liquid to rethread wax injection pipe 100, treat wax liquid cooling shaping in the shaping chamber for inner ring cold wax core 73 after, remove upper mould lid 90 by on the lower die body 80, application of force top mould mechanism 110 after that, make top mould mechanism 110 shift up in die body 80 internal stability down, top mould mechanism 110 moves up the in-process, its partial structure will pass down die body 80 and stretch into in the shaping chamber, move up the in-process again when top mould mechanism 110, the cold wax core 73 of inner ring that its partial structure will take shape goes up ejecting lower die cavity 801 down, thereby realize the play mould of inner ring cold wax core 73.
When the inner ring cold wax core forming die is adopted, the inner ring cold wax core 73 meeting the design requirement can be formed through the matching effect of the upper die cavity 901 and the lower die cavity 801, the forming quality of the inner ring cold wax core 73 is high, the formed inner ring cold wax core 73 can be easily ejected through the die ejecting effect of the die ejecting mechanism 110, the die ejecting operation is simple, the die ejecting efficiency is high, and the die ejecting quality of the wax die is good; on the other hand, it is big to compare direct forming out inner ring wax matrix and lead to the wax matrix deflection, it is big to restore the degree of difficulty, and then be difficult to satisfy the designing requirement, the utility model discloses in, at first pass through the utility model discloses a forming die shaping goes out the inner ring cold wax core 73 that accords with the designing requirement, then goes out the inner ring wax matrix through this inner ring cold wax core 73 shaping again, because the size and the thickness that the inner ring wax matrix was compared to the size and the thickness of inner ring cold wax core 73 are little very much, so the difficult shrink deformation of the inner ring cold wax core 73 that the shaping goes out, inner ring cold wax core 73 shaping is of high quality, further, adopt the utility model discloses a quality of the inner ring cold wax core 73 that the forming die goes out is higher, and then can effectively improve the shaping quality of inner ring wax matrix, makes it satisfy the designing requirement, finally improves the holistic shaping quality of turbine dish wax matrix, makes can the shaping out the turbine dish that accords with the designing requirement through this turbine dish wax matrix shaping.
Alternatively, as shown in fig. 4 and 5, the forming cavities include a main body forming cavity for forming the main body structure 731 of the inner ring cold wax core 73, a cone forming cavity for forming the positioning cones 732 arranged on the upper and lower surfaces, the upper and lower end surfaces and the outer ring surface of the main body structure 731, and a connecting column for forming the communicating hole 733 penetrating through the upper and lower surfaces of the main body structure 731. The cone forming cavity is formed by extending the corresponding upper mold cavity 901 and lower mold cavity 801 in a concave manner. The connecting posts are connected in corresponding lower and upper mold cavities 801 and 901. Referring to fig. 2, the inner ring cold wax core 73 includes a main body structure 731, positioning cones 732 are uniformly distributed on an upper surface, a lower surface, an upper end surface, a lower end surface and an outer ring surface of the main body structure 731, the positioning cones 732 are used for positioning a position between the inner ring cold wax core 73 and an inner ring shell formed on an outer surface thereof, and the inner ring cold wax core 73 and the inner ring shell form an inner ring wax mold; the main body structure 731 is further provided with a plurality of communicating holes 733 which are uniformly distributed and penetrate through the upper surface and the lower surface of the main body structure 731, and the communicating holes 733 are used for ensuring that wax is connected on the upper surface and the lower surface of the inner ring cold wax core 73 after the inner ring shell is molded, so that size change caused by separation of the inner ring cold wax core 73 and the inner ring shell is avoided. The utility model discloses in, through setting up main part shaping chamber, cone shaping chamber and spliced pole, can effectively the shaping go out the inner ring cold wax core 73 that accords with the designing requirement for the shaping of follow-up inner ring wax matrix.
In this alternative, as shown in fig. 4 and 5, the joint surface of the upper mold cover 90 and the lower mold body 80 is a parting surface of the inner ring cold wax core 73, so that the inner ring cold wax core 73 can be easily and high-quality demolded. The cone forming cavities for forming the positioning cones 732 on the outer ring surface of the main body structure 731 are symmetrically arranged on the parting surface, so that the upper die cover 90 can be removed and then the upper die cover is removed. Each connecting column comprises an upper column body fixed with the wall surface of the upper mold cavity 901 and a lower column body fixed with the wall surface of the lower mold cavity 801, and the length of the upper column body is smaller than that of the lower column body, so that the inner ring cold wax core 73 is not driven when the upper mold cover 90 is removed, smooth removal of the upper mold cover 90 is guaranteed, and mold stripping quality of the inner ring cold wax core 73 is guaranteed.
Alternatively, as shown in fig. 4, the wax injection tube 100 is horizontally disposed, and its wax injection end extends into the molding cavity from the outer edge of the molding die along the parting plane; compare top notes formula and sill pillar formula, because annotate wax pipe 100 level setting and stretch into the die cavity along the die joint outward by forming die and form the side and annotate the formula, whether the operating personnel of being convenient for observe the notes wax mouth of die casting machine with annotate the butt joint of wax mouth of wax pipe 100 to improve and annotate wax efficiency.
Optionally, as shown in fig. 4 and 5, the lower mold block 80 includes a lower die holder 81 and a bottom mold pillar 82. An installation cavity 802 communicated with two opposite side walls of the lower die base 81 is arranged in the lower die base 81, the bottom die column 82 is arranged in the installation cavity 802, the top end of the bottom die column is propped against the top of the installation cavity 802, and the lower die cavity 801 penetrates through the top of the installation cavity 802 and then extends downwards into the bottom die column 82; the utility model discloses in, lower die cavity 801 branch is located on die holder 81 and end mould post 82 to the processing of die cavity 801 is down convenient for, improves die cavity 801's processingquality and machining efficiency down, and on the other hand, the smooth and easy demolding of inner ring cold wax core 73 of being convenient for, also is convenient for easily clear up, restore lower die cavity 801. The top mold mechanism 110 is located in the installation cavity 802 and sleeved on the outer circle of the bottom mold pillar 82, so as to move up and down under the action of external force, and then partially penetrate through the top end of the installation cavity 802 and extend into the lower mold cavity 801.
In this alternative, as shown in fig. 4 and 5, the lower die base 81 includes a bottom plate 811, two vertical plates 812 supported on the bottom plate 811 at intervals, and a lower die block 813 connected to top ends of the two vertical plates 812. The gap between the bottom plate 811, the two vertical plates 812, and the lower module 813 forms an installation cavity 802. The bottom mold pillar 82 is fixed on the bottom plate 811, and the top end of the bottom mold pillar is abutted against the lower mold 813, and the lower mold cavity 801 penetrates through the lower mold 813 and then extends into the bottom mold pillar 82 from the top end of the bottom mold pillar 82. The top mold mechanism 110 is slidably mounted on the outer circle of the bottom mold pillar 82, and two ends of the top mold mechanism extend out of the lower mold base 81 through the gap between the two vertical plates 812. The lower die holder 81 has a simple structure, is easy to process and manufacture, and the top die mechanism 110 is simple to mount and dismount.
Further, the lower die base 81 further includes a positioning column for positioning the installation of the lower module 813, and a guiding column for positioning and guiding the installation of the upper die cover 90. The positioning columns are vertically arranged and supported at the top ends of the two vertical plates 812, so as to be inserted into positioning holes formed in the bottom end of the lower module 813 upwards; through the positioning column and the positioning hole with the cooperation effect, the lower module 813 is positioned in installation, the assembly and disassembly efficiency of the lower module 813 is improved, the installation precision of the lower module 813 is improved, and the forming quality of the inner ring cold wax core 73 is improved. The guide posts are vertically arranged and supported at the top end of the lower module 813 for upward insertion into guide holes formed at the bottom end of the upper die cover 90; through the guide post and the guide hole which are provided with the cooperation effect, the installation of the upper die cover 90 is positioned, the assembly and disassembly efficiency of the upper die cover 90 is improved, the installation precision of the upper die cover 90 is improved, and the forming quality of the inner ring cold wax core 73 is improved.
Optionally, as shown in fig. 3, the upper surface of the upper mold cover 90 is further provided with a weight reduction groove 902 extending concavely, so as to facilitate the moving of the upper mold cover 90 and reduce the labor intensity of workers.
Alternatively, as shown in fig. 4 and 5, the top mold mechanism 110 includes a lift group 111 fitted around the outer circumference of the bottom mold pillar 82, and a plurality of lift pillars 112 vertically supported on the lift group 111. The lift die set 111 is supported on the bottom plate 811, and two ends of the lift die set 111 respectively extend out of the lower die holder 81 from a gap between the two vertical plates 812, so that a worker can apply a force to lift the lift die set 111 to move upward. The lift pins 112 are used to penetrate the lower mold block 813 and extend into the lower mold cavity 801 during the upward movement of the lift plate group 111. When the mold is removed, a worker applies force to lift the mold removing plate group 111, the mold removing plate group 111 drives the mold removing columns 112 to move upwards synchronously, the mold removing columns 112 move upwards to penetrate through the lower mold block 813 above in the process of moving upwards and then extend into the lower mold cavity 801 to push against the inner ring cold wax core 73, and the mold removing columns 112 push against the inner ring cold wax core 73 to remove the mold when the mold removing plate group 111 continues to move upwards.
In this alternative, as shown in fig. 4 and 5, the stripping plate group 111 includes a stripping plate and a fixing plate that are stacked one above the other. A plurality of mold lifting columns 112 are uniformly arranged along the circumferential direction of the lower mold cavity 801 at intervals, the bottom ends of the mold lifting columns 112 are supported on the fixing plate, and the opposite top ends of the mold lifting columns upwards penetrate through the mold lifting plate and then extend into the lower mold block 813. In the alternative, a plurality of mold drawing columns 112 are uniformly arranged along the circumferential direction of the lower mold cavity 801 at intervals, so that the inner ring cold wax core 73 is uniformly stressed to be drawn out, and the mold drawing quality and the mold drawing efficiency of the inner ring cold wax core 73 are improved; the structural arrangement of the stripping plate group 111 facilitates the quick installation and disassembly of the stripping column 112, thereby improving the forming efficiency.
In this preferred embodiment, the top mold mechanism 110 further includes a return rod 113 for returning the upward moving lift mold plate group 111 under force, the return rod is vertically supported on the lift mold plate group 111, and the upper end of the return rod is used for abutting against the upper mold cover 90 after penetrating through the lower mold block 813. When the top die mechanism 110 does not move the top die, the top die mechanism is supported on the bottom plate 811, and at this time, the return rod penetrates through the lower die block 813 and then extends to be flush with the top end of the lower die block 813; in the process of ejecting the mold by the mold ejecting mechanism 110, the return rod synchronously moves upwards to penetrate through the lower module 813 and then extends upwards; after the top mold is finished, when the upper mold cover 90 is overlapped and covered to the upper end of the lower mold body 80, the upper mold cover 90 presses the return rod downwards to enable the top mold mechanism 110 to move back downwards, and after the upper mold cover 90 is covered to the lower mold body 80, the return rod moves back to the inside of the lower mold block 813 and the top end of the return rod is flush with the top end of the lower mold block 813.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.