Tool and preparation method for splicing wax mould of complex hollow thin-wall guider

Abstract

The invention discloses a tool for splicing a wax mold of a complex hollow thin-wall guider and a preparation method of the tool. The tool comprises a splicing tool and a plurality of frame type supporting pieces, the frame type supporting piece is used for installing a single-blade mold core so as to form a single-blade mold core assembly with the frame type supporting piece; the single-blade mold core assembly is used for being placed in a single-blade mold to conduct wax injection pressing on a single-blade mold core so as to form a single-blade wax mold assembly with a frame type supporting piece. The multiple single-blade wax mold assemblies are used for being installed in the splicing tool in the circumferential direction, and the side portions of the single-blade wax molds of every two adjacent single-blade wax mold assemblies make contact with each other and form opposite seams. The splicing tool is provided with a radial positioning assembly used for being matched with the frame type supporting pieces of the multiple single-blade wax mould assemblies, a plurality of angular positioning assemblies used for being matched with the multiple frame type supporting pieces one by one, and a plurality of pressing assemblies used for pressing the multiple frame type supporting pieces one by one. Therefore, the problems that a plurality of single-blade wax molds are low in positioning precision and easy to deform in the tool are solved.

Description

Technical Field

[0001] The present invention relates to the field of aviation manufacturing technology, in particular to a tooling and a preparation method for a complex hollow thin-wall guide splicing wax model. Background Art

[0002] A multi-layer annular structure integral guide with hollow blades is a complex hollow thin-walled integral guide, which is a component of an aircraft engine power turbine unit. The complex hollow thin-walled integral guide splicing wax model can be formed by splicing multiple single-blade wax models along the circumferential direction; wherein, multiple single-blade wax models can be circumferentially loaded into the tooling and fixed, and then the seams of two adjacent single-blade wax models are welded together to form a complex hollow thin-walled integral guide splicing wax model.

[0003] However, multiple single-blade wax models have problems such as low positioning accuracy and easy deformation in the tooling, which in turn affects the accuracy and reliability of the complex hollow thin-walled integral guide splicing wax model. Summary of the Invention

[0004] In view of this, the present invention provides a tooling for splicing wax models of complex hollow thin-walled guides, which solves the problems of low positioning accuracy and easy deformation of multiple single-blade wax models in the tooling, thereby ensuring the accuracy and reliability of the splicing wax models of complex hollow thin-walled integral guides.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A tool for splicing a wax model of a complex hollow thin-walled guide, wherein the wax model of the complex hollow thin-walled guide is spliced by splicing multiple single-blade wax models along the circumferential direction, and the tool comprises: a splicing tool and multiple frame-type support members;

[0007] The frame-type support member is used to install the single-blade core to form a single-blade core assembly with the frame-type support member;

[0008] The single-leaf core assembly is used to be placed in a single-leaf mold to perform wax injection pressing on the single-leaf core, so as to form a single-leaf wax pattern assembly with a frame-type support member; wherein, in the single-leaf wax pattern assembly, the frame-type support member is used to respectively support the inner and outer webs and the middle core portion of the single-leaf wax pattern, and its two side portions do not protrude from the two side portions of the inner and outer webs of the single-leaf wax pattern;

[0009] The multiple single-leaf wax mold assemblies are used to be installed in the splicing tooling along the circumferential direction, and the sides of the single-leaf wax molds of two adjacent single-leaf wax mold assemblies are in contact and form a seam; wherein, the splicing tooling is provided with a radial positioning assembly for cooperating with the frame-type support members of the multiple single-leaf wax mold assemblies, and is provided with a multiple angular positioning assembly for cooperating one-to-one with the multiple frame-type support members, and is provided with a multiple clamping assembly for clamping the multiple frame-type support members one by one.

[0010] Preferably, the frame-type support member comprises: a first support plate, a second support plate, a connecting block and a positioning block;

[0011] In the single-blade wax model assembly, the first support plate and the second support plate,

[0012] They are respectively fitted with the inner walls of the outer web and the inner web of the single-leaf wax model, and the middle part thereof is respectively provided with a first supporting hole and a second supporting hole for the middle core part of the single-leaf wax model to pass through, and the two side parts are respectively flush with the two side parts of the outer web and the inner web, the top is connected with the connecting block, and the bottom is connected with the positioning block;

[0013] The radial positioning assembly is used to cooperate with the positioning blocks of the plurality of single-blade wax model assemblies;

[0014] The plurality of angular positioning assemblies are used to cooperate with the positioning blocks and / or connecting blocks of the plurality of single-leaf wax model assemblies;

[0015] The plurality of pressing assemblies are used to press the top ends of the connecting blocks of the plurality of single-leaf wax mold assemblies one by one.

[0016] Preferably, the splicing tooling comprises: a base, an upper annular plate and a plurality of columns;

[0017] The top of the base is provided with an annular splicing position;

[0018] The upper annular plate is arranged above the base through a plurality of the columns and is located outside the splicing position;

[0019] The plurality of single-blade wax model assemblies are used to be installed in the splicing position of the base along the circumferential direction;

[0020] The radial positioning components are arranged on the top of the base and are respectively located on the inner side and the outer side of the splicing position;

[0021] The plurality of angular positioning components are respectively arranged on the base and / or the top of the upper annular plate, and are distributed along different radial directions of the splicing position;

[0022] The plurality of pressing assemblies are respectively arranged on the top of the upper annular plate and distributed along different radial directions of the splicing position.

[0023] Preferably, the radial positioning assembly comprises:

[0024] An inner positioning ring disposed on the top of the base and located inside the splicing position and used to contact and cooperate with the first side ends of the positioning blocks of the plurality of single-leaf wax model assemblies;

[0025] A plurality of external positioning blocks are arranged on the top of the base and located on the outside of the splicing position, and are used to contact and cooperate with the second side ends of the plurality of positioning blocks one by one; wherein the first side end of the positioning block faces the inside of the splicing position, and the second side end faces the outside of the splicing position.

[0026] Preferably, the pressing assembly comprises: a fixing block and a first latch;

[0027] The fixing block is arranged on the top of the upper annular plate, and the first portion thereof is located above the connecting block; wherein the top end of the connecting block is provided with a first pin hole;

[0028] The first latch is used to pass through the first portion of the fixing block and to be inserted into and pressed against the first latch hole of the connecting block.

[0029] Preferably, the angular positioning assembly comprises: a second latch, a third latch, a second latch operating assembly and a third latch operating assembly;

[0030] The second side end of the connecting block is provided with a second pin hole, and the second side end of the positioning block is provided with a third pin hole; wherein the second side end of the connecting block faces the outside of the splicing position;

[0031] The second latch is radially slidably disposed within the fixed block and has a switchable extended position and a retracted position. When in the extended position, the second latch extends beyond the fixed block and is inserted into the second latch hole of the connecting block, and when in the retracted position, it is located within the fixed block. The second latch operating assembly is disposed on the top of the upper annular plate and is used to drive the second latch to switch between the extended position and the retracted position.

[0032] The third latch can be radially slidably arranged in the outer positioning block and has a switchable extended position and a retracted position. When the third latch is in the extended position, it extends out of the outer positioning block and is inserted into the third latch hole of the positioning block. When it is in the retracted position, it is located in the outer positioning block; the third latch operating assembly is arranged on the top of the base and is used to drive the third latch to switch between the extended position and the retracted position.

[0033] Preferably, the bottom ends of the plurality of positioning blocks are each provided with positioning grooves, and are distributed along different radial directions of the splicing position;

[0034] The splicing position is provided with a plurality of positioning strips along different radial directions, and is used to match one by one with the positioning grooves of the plurality of positioning blocks.

[0035] Preferably, the splicing tool further comprises a plurality of outer web positioning assemblies;

[0036] The plurality of outer web positioning assemblies are respectively arranged on the top of the base and are used for contacting and cooperating with the outer walls of the outer webs of the single-leaf wax molds of the plurality of single-leaf wax mold assemblies one by one.

[0037] Preferably, the outer web positioning assembly comprises: a support column, a positioning rod and a positioning rod operating assembly;

[0038] The support column is arranged on the top of the base;

[0039] The positioning rod is radially slidably disposed on the support and has a switchable extension position and retraction position. The free end of the positioning rod is provided with a positioning head. When the positioning rod is in the extension position, the positioning head contacts and cooperates with the outer wall of the outer web of the single-leaf wax model. When the positioning rod is in the retraction position, the positioning head is separated from the outer wall of the outer web of the single-leaf wax model.

[0040] The positioning rod operating assembly is arranged on the pillar and is used to drive the positioning rod to switch between the extending position and the retracting position.

[0041] Preferably, it also includes a turning platform;

[0042] The movable end of the flip platform is located at the top of the flip platform and can rotate 360 degrees around the vertical direction and can flip 90 degrees around the horizontal direction;

[0043] The bottom of the splicing tool is arranged at the movable end of the turning platform.

[0044] A method for preparing a complex hollow thin-walled guide splicing wax pattern is prepared using the tooling for the complex hollow thin-walled guide splicing wax pattern as described above. The method comprises:

[0045] Installing the single blade core into the frame-type support to form a single blade core assembly with the frame-type support;

[0046] The single-leaf core assembly is placed in the single-leaf mold and wax injection and pressing of the single-leaf core are performed to form a single-leaf wax mold assembly with a frame-type support member. After the wax injection and pressing of the single-leaf wax mold is completed, the single-leaf wax mold assembly is taken out as a whole;

[0047] The plurality of single-leaf wax pattern assemblies are installed into the splicing fixture along the circumferential direction, so that the side portions of the single-leaf wax patterns of two adjacent plurality of single-leaf wax pattern assemblies contact and form a butt joint;

[0048] The radial positioning assembly of the splicing tooling is used to radially position the frame-type support members of multiple single-leaf wax mold assemblies, the angular positioning assembly is used to angularly position the multiple frame-type support members one by one, and multiple clamping assemblies are used to clamp the multiple frame-type support members one by one.

[0049] It can be seen from the above technical solution that the tooling for splicing wax molds of complex hollow thin-walled guides provided by the present invention first pre-loads a single-leaf core through a frame-type support to form a single-leaf core assembly with a frame-type support, and then places the single-leaf core assembly into a single-leaf mold to perform wax injection pressing on the single-leaf core to form a single-leaf wax mold assembly with a frame-type support; wherein, in the single-leaf wax mold assembly, the frame-type support respectively supports the inner and outer webs and the middle core part of the single-leaf wax mold, and its two side parts do not protrude from the two side parts of the inner and outer webs of the single-leaf wax mold; and then multiple single-leaf wax mold assemblies are sequentially loaded into the splicing tooling along the circumferential direction, and then can be The corresponding components of the splicing tooling realize radial positioning, angular positioning and pressing of the frame-type support parts of multiple single-leaf wax mold components; and based on the adjacent distribution of two adjacent single-leaf wax mold components, multiple frame-type support parts can realize tangential positioning in the splicing tooling. In this way, based on the above-mentioned multiple positioning, the positioning accuracy of multiple single-leaf wax molds in the splicing tooling can be improved. At the same time, based on the support of multiple parts of the single-leaf wax mold by the frame-type support parts, it can also avoid the multiple single-leaf wax molds from being easily deformed during splicing, and solve the problems of low positioning accuracy and easy deformation of multiple single-leaf wax molds in the tooling, thereby ensuring the accuracy and reliability of the splicing wax mold of the complex hollow thin-walled integral guide. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0051] Figure 1 A schematic structural diagram of a single blade core provided in an embodiment of the present invention;

[0052] Figure 2 Another structural schematic diagram of a single-blade core provided by an embodiment of the present invention;

[0053] Figure 3 A schematic structural diagram of a single-blade wax model assembly with a frame-type support member provided in an embodiment of the present invention;

[0054] Figure 4 Another structural schematic diagram of a single-blade wax model assembly with a frame-type support member provided by an embodiment of the present invention;

[0055] Figure 5 A schematic diagram of assembling multiple single-blade wax model assemblies in a splicing tooling according to an embodiment of the present invention;

[0056] Figure 6 A schematic structural diagram of a splicing tool provided in an embodiment of the present invention;

[0057] Figure 7 A schematic diagram of assembling the pressing assembly provided in an embodiment of the present invention on the upper annular plate;

[0058] Figure 8 A schematic diagram of the assembly of the clamping assembly, the second latch, and the second latch operating assembly provided in an embodiment of the present invention;

[0059] Figure 9 A schematic diagram of the assembly of the external positioning block, the third latch and the third latch operating assembly provided in an embodiment of the present invention;

[0060] Figure 10 A schematic structural diagram of an outer web positioning assembly provided in an embodiment of the present invention;

[0061] Figure 11 Still another structural schematic diagram of a single-blade wax model assembly with a frame-type support member provided by an embodiment of the present invention;

[0062] Figure 12 A schematic diagram of assembling the splicing tool provided in an embodiment of the present invention on a turning platform;

[0063] Figure 13 A schematic diagram of the structure of a turning platform provided in an embodiment of the present invention;

[0064] Figure 14 This is another structural schematic diagram of the turning platform provided in an embodiment of the present invention.

[0065] Among them, 1 is a splicing tool, 11 is a base, 12 is an upper annular plate, 13 is a column, 14 is a splicing position, 15 is an inner positioning ring, 16 is an outer positioning block, 17 is a fixing block, 18 is a first latch, 19 is a support, 110 is a second latch, 111 is a third latch, 112 is a positioning bar, 113 is a pillar, 114 is a positioning rod, 115 is a positioning head, 116 is a second latch operating assembly, 117 is a third latch operating assembly, and 118 is a positioning rod operating assembly;

[0066] 2 is a frame-type support member, 21 is a first support plate, 22 is a second support plate, 23 is a connecting block, 23.1 is a first latch hole, 23.2 is a second latch hole, 24 is a positioning block, 24.1 is a third latch hole, and 24.2 is a positioning groove;

[0067] 3 is a single blade core;

[0068] 4 is a single blade wax mold, 41 is the outer web, 24 is the inner web, and 43 is the middle core part;

[0069] 5 is a turning platform, 51 is a turntable, 52 is a rotating shaft, 53 is a first motor assembly, 54 is a second motor assembly, 55 is a bracket, and 56 is a machine cover. DETAILED DESCRIPTION

[0070] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0071] The embodiment of the present invention provides a tool for splicing a complex hollow thin-walled guide wax model, wherein the complex hollow thin-walled guide wax model is spliced by multiple single-blade wax models spliced along the circumferential direction, such as Figure 5 As shown, the tooling includes: a splicing tooling 1 and a plurality of frame-type support members 2;

[0072] The frame type support 2 is used to install the single blade core 3 (such as Figure 1 or Figure 2 As shown), to form a single blade core assembly with a frame support member 2;

[0073] The single blade core assembly is used to be placed in a single blade mold to perform wax injection pressing on the single blade core 3 to form a single blade wax mold assembly with a frame support 2 (such as Figure 3 or Figure 4 As shown); where Figure 3 As shown, in the single-leaf wax model assembly, the frame-type support member 2 is used to respectively support the inner and outer webs and the middle core portion of the single-leaf wax model 4, and its two side portions do not protrude from the two side portions of the inner and outer webs of the single-leaf wax model 4;

[0074] like Figure 5 As shown, multiple single-leaf wax mold assemblies are used to be installed in the splicing tool 1 along the circumferential direction, and the sides of the single-leaf wax molds 4 of two adjacent single-leaf wax mold assemblies are in contact and form a seam; wherein, the splicing tool 1 is provided with a radial positioning assembly for cooperating with the frame-type support members 2 of the multiple single-leaf wax mold assemblies, and is provided with a plurality of angular positioning assemblies for cooperating one by one with the multiple frame-type support members 2, and is provided with a plurality of clamping assemblies for clamping the multiple frame-type support members 2 one by one.

[0075] It should be noted that the structure of the single blade core 3 can be referred to Figure 1 or Figure 2As shown, the single-blade core 3 can be a single-blade ceramic core; wherein, after the single-blade ceramic core is coated with wax, hard core supports of different thicknesses (not shown in the figure) are attached to the blade base and blade back of the single-blade ceramic core, and then the single-blade ceramic core is pre-installed into the frame support 2 to form a single-blade ceramic core assembly with the frame support 2; of course, the frame support 2 can be opened to facilitate the pre-installation of the single-blade ceramic core therein; in addition, among the multiple single-blade cores 3, not all single-blade cores 3 are the same;

[0076] The entire single-blade core assembly is used to be placed in a single-blade mold to perform wax injection pressing on the single-blade core 3 to form a single-blade wax mold assembly with a frame support 2 (such as Figure 3 or Figure 4 As shown); where Figure 3 As shown, in the single-leaf wax pattern assembly, the frame-type support member 2 is used to respectively support the outer web 41, the inner web 42 and the middle core portion 43 of the single-leaf wax pattern 4, and the two side portions of the frame-type support member 2 do not protrude from the two side portions of the outer web 41 of the single-leaf wax pattern 4, nor do they protrude from the two side portions of the inner web 42 of the single-leaf wax pattern 4. In this way, when multiple single-leaf wax pattern assemblies are circumferentially assembled into the splicing fixture 1, it is ensured that the single-leaf wax patterns 4 of two adjacent single-leaf wax pattern assemblies are in contact and form a butt seam (i.e., a splicing seam);

[0077] In other words, in the single-leaf wax mold assembly, the frame-type support member 2 can be used to support the outer web 41, the inner web 42 and the middle core part 43 of the single-leaf wax mold 4. In this way, when the single-leaf wax mold assembly is loaded into the splicing tool 1 and spliced, the deformation of the single-leaf wax mold 4 can be reduced, thus overcoming the problem that the single-leaf wax mold 4 is easily deformed. In addition, after the single-leaf wax mold 4 is pressed, the single-leaf wax mold assembly with the frame-type support member 2 needs to be taken out as a whole to prevent the single-leaf wax mold 4 from being deformed. Of course, the support of the single-leaf wax mold 4 by the frame-type support member 2 also serves as a limit. In addition, the remaining multiple single-leaf cores 3 are all obtained through the above method to obtain multiple single-leaf wax mold assemblies.

[0078] like Figure 5As shown, multiple single-leaf wax mold assemblies are used to be sequentially loaded into the splicing tool 1 along the circumferential direction, that is, multiple single-leaf wax mold assemblies are distributed adjacent to each other in the splicing tool 1 along the circumferential direction, and the sides of the single-leaf wax molds 4 of two adjacent single-leaf wax mold assemblies are in contact and form a seam; wherein, the splicing tool 1 is provided with a radial positioning assembly for cooperating with the frame-type support members 2 of the multiple single-leaf wax mold assemblies, so that the multiple frame-type support members 2 can be radially positioned in the splicing tool 1, and the splicing tool 1 is also provided with multiple angular positioning assemblies for cooperating one by one with the multiple frame-type support members 2, so that the multiple The frame-type support members 2 are angularly positioned in the splicing tool 1 to prevent the multiple frame-type support members 2 from tilting outward, leftward, or rightward in the splicing tool 1, ensuring that the frame-type support members 2 are in a vertical position in the splicing tool 1, thereby ensuring that the multiple single-leaf wax models 4 are all in a vertical position in the splicing tool 1. The splicing tool 1 is also provided with multiple pressing assemblies for pressing the top ends of the multiple frame-type support members 2 one by one, so that the multiple frame-type support members 2 are fastened in the splicing tool 1, and at the same time, the multiple frame-type support members 2 are height-limited in the splicing tool 1;

[0079] Simply put, after multiple single-leaf wax mold assemblies are installed adjacent to each other in the circumferential direction in sequence into the splicing tooling 1, the frame-type support members 2 of the multiple single-leaf wax mold assemblies can be radially positioned, angularly positioned and pressed through the corresponding components of the splicing tooling 1; of course, since two adjacent single-leaf wax mold assemblies are distributed adjacent to each other, multiple frame-type support members 2 can be tangentially positioned in the splicing tooling 1. In this way, based on the above-mentioned multiple positioning, the positioning accuracy of multiple single-leaf wax molds 4 in the splicing tooling 1 can be greatly improved. At the same time, based on the support of multiple parts of the single-leaf wax mold 4 by the frame-type support member 2, it can also avoid the multiple single-leaf wax molds 4 from being easily deformed during splicing.

[0080] That is to say, the tooling for splicing wax molds of complex hollow thin-walled guides provided in this scheme first pre-loads the single-leaf core 3 through the frame-type support 2 to form a single-leaf core assembly with the frame-type support 2, and then places the single-leaf core assembly into the single-leaf mold to perform wax injection pressing on the single-leaf core 3 to form a single-leaf wax mold assembly with the frame-type support 2; wherein, in the single-leaf wax mold assembly, the frame-type support 2 respectively supports the inner and outer webs and the middle core part of the single-leaf wax mold 4, and its two side parts do not protrude from the two side parts of the inner and outer webs of the single-leaf wax mold 4; and then multiple single-leaf wax mold assemblies are sequentially loaded into the splicing tooling 1 along the circumferential direction, and then can be spliced through the splicing tooling The corresponding components of 1 realize radial positioning, angular positioning and pressing of the frame support 2 of multiple single-leaf wax mold components; and based on the adjacent distribution of two adjacent single-leaf wax mold components, multiple frame support members 2 can realize tangential positioning in the splicing tool 1. In this way, based on the above-mentioned multiple positioning, the positioning accuracy of multiple single-leaf wax molds 4 in the splicing tool 1 can be improved. At the same time, based on the support of multiple parts of the single-leaf wax mold 4 by the frame support 2, it can also avoid the multiple single-leaf wax molds 4 from being easily deformed during splicing, solving the problems of low positioning accuracy and easy deformation of multiple single-leaf wax molds in the tooling, thereby ensuring the accuracy and reliability of the splicing wax mold of the complex hollow thin-walled integral guide.

[0081] In this program, if Figure 3 and Figure 4 As shown, the frame-type support member 2 includes: a first support plate 21, a second support plate 22, a connecting block 23 and a positioning block 24;

[0082] In the single-blade wax model assembly, the first support plate 21 and the second support plate 22 are respectively fitted with the inner walls of the outer web 41 and the inner web 42 of the single-blade wax model 4, and the middle part thereof is respectively provided with a first support hole and a second support hole for the middle core part 43 of the single-blade wax model 4 to pass through. The two side portions are respectively flush with the two side portions of the outer web 41 and the inner web 42. The top is connected with a connecting block 23, and the bottom is connected with a positioning block 24.

[0083] The radial positioning assembly is used to cooperate with the positioning blocks 24 of multiple single-blade wax model assemblies;

[0084] Multiple angular positioning assemblies are used to cooperate with the positioning blocks 24 and / or connecting blocks 23 of multiple single-leaf wax model assemblies;

[0085] The plurality of pressing assemblies are used to press the top ends of the connecting blocks 23 of the plurality of single-leaf wax pattern assemblies one by one.

[0086] It should be noted that in the single-blade wax mold assembly, Figure 3As shown, the first support plate 21 is fitted with the inner wall of the outer web 41 of the single-leaf wax mold 4, and the middle part thereof is provided with a first support hole for the middle core part 43 of the single-leaf wax mold 4 to pass through, and the two side portions can be flush with the two side portions of the outer web 41 one by one; Figure 4 As shown, the second support plate 22 is fitted with the inner wall of the inner web 42 of the single-blade wax mold 4, and the middle part thereof is provided with a second support hole for the middle core part 43 of the single-blade wax mold 4 to pass through, and the two side parts can be flush with the two side parts of the inner web 42; the connecting block 23 is connected between the top of the first support plate 21 and the second support plate 22, and the positioning block 24 is connected between the bottom of the first support plate 21 and the second support plate 22; the radial positioning assembly is used to cooperate with the positioning blocks 24 (i.e., the lower positioning blocks) of the multiple frame-type support members 2, and is also used to achieve radial positioning of the bottom of the multiple frame-type support members 2; the multiple angular positioning assemblies are used to cooperate with the positioning blocks 24 and / or connecting blocks 23 (i.e., the upper connecting blocks) of the multiple frame-type support members 2, and is also used to achieve angular positioning of the bottom and / or top of the multiple frame-type support members 2;

[0087] The plurality of pressing assemblies are used to press the top ends of the connection blocks 23 of the plurality of frame-type support members 2 one by one, that is, to press the top ends of the plurality of frame-type support members 2 one by one.

[0088] That is to say, the frame support member 2 is designed in such a way that the frame support member 2 can form a frame structure with a lower positioning block, an upper connecting block and two supporting webs, which not only facilitates the effective support of the outer web 41, the inner web 42 and the middle core part 43 of the single-blade wax mold 4, but also facilitates the corresponding components of the splicing tooling 1 to achieve radial positioning, angular positioning and top compression of the frame support member 2; of course, the structure of the frame support member 2 is designed in such a way that the center of gravity of the frame support member 2 will tilt to the left and outward, and the angular positioning components are correspondingly used to prevent the frame support member 2 from tilting to the left and outward.

[0089] In addition, in order to facilitate the pre-loading of the single-blade core 3 into the frame support 2, the frame support 2 needs to be able to be opened; accordingly, the first support plate 21 and the second left support plate 22 both adopt a left and right support plate structure that matches; for example, the first support plate 21 includes: a first left support plate and a first right support plate that match, the first left support plate is correspondingly provided with a first left half support hole, and the first right support plate is correspondingly provided with a first right half support hole, and the first left half support hole and the first right half support hole can form the first support hole described above when the first left support plate and the first right support plate are matched, the first end of the connecting block 23 is respectively connected to the top of the first left support plate and the first right support plate, and the first end of the positioning block 24 is respectively connected to the bottom of the first left support plate and the first right support plate; the structure of the second left support plate 22 is the same, and the connection form of its top and the second end of the connecting block 23 is the same, and the connection form of its bottom and the second end of the positioning block 24 is also the same, which will not be repeated here; in addition, as Figure 3 As shown, the connecting block 23 can be an I-shaped connecting block, and the first horizontal portion of the I-shaped connecting block is its first end, and the second horizontal portion is its second end. The first horizontal portion and the second horizontal portion of the I-shaped connecting block are not in the same horizontal plane, and the second horizontal portion is lower than the first horizontal portion.

[0090] Specifically, if Figure 5 and Figure 6 As shown, the splicing tool 1 includes: a base 11, an upper annular plate 12 and a plurality of columns 13;

[0091] like Figure 6 As shown, the top of the base 11 is provided with an annular splicing position 14;

[0092] like Figure 5 As shown, the upper annular plate 12 is arranged above the base 11 through a plurality of columns 13 and is located outside the splicing position 14 (as shown in FIG. Figure 6 shown);

[0093] like Figure 5 As shown, a plurality of single-blade wax model assemblies are used to be installed in the splicing position 14 of the base 11 along the circumferential direction;

[0094] The radial positioning components are arranged on the top of the base 11 and are respectively located on the inner and outer sides of the splicing position 14;

[0095] A plurality of angular positioning components are respectively disposed on the base 11 and / or the top of the upper annular plate 12 and are distributed along different radial directions of the splicing position 14;

[0096] The plurality of pressing assemblies are respectively disposed on the top of the upper annular plate 12 and distributed along different radial directions of the splicing position 14 .

[0097] It should be noted that if Figure 6As shown, the base 11 may be a circular base, and a circular splicing position 14 may be provided on the top thereof, and the splicing position 14 is concentric with the circular base; Figure 5 As shown, multiple single-blade wax mold assemblies are used to be installed adjacent to each other in the splicing position 14 of the base 11 in sequence along the circumferential direction; the upper annular plate 12 is arranged above the base 11 and is located outside the splicing position 14; multiple columns 13 are respectively connected between the bottom of the upper annular plate 12 and the top of the base 11, and can be evenly distributed along the circumference of the upper annular plate 12;

[0098] The radial positioning assembly includes: an outer radial positioning assembly and an inner radial positioning assembly; wherein the outer radial positioning assembly is arranged at the top of the base 11 and is located outside the splicing position 14, and is used to match the outer end faces of the positioning blocks 24 of the multiple frame-type support members 2 one by one; the inner radial positioning assembly is arranged at the top of the base 11 and is located inside the splicing position 14, and is used to match the inner end faces of the positioning blocks 24 of the multiple frame-type support members 2 one by one, thereby achieving radial positioning of the inner and outer end faces of the positioning blocks 24 of the multiple frame-type support members 2;

[0099] The multiple angular positioning assemblies can be divided into multiple upper angular positioning assemblies and multiple lower angular positioning assemblies; wherein the multiple upper angular positioning assemblies are arranged on the top of the upper annular plate 12 and are located at different radial directions of the splicing position 14, and are used to match one by one with the outer end faces of the connecting blocks 23 of the multiple frame-type support members 2; the multiple lower angular positioning assemblies are arranged on the top of the base 11 and are located at different radial directions of the splicing position 14, and are used to match one by one with the outer end faces of the positioning blocks 24 of the multiple frame-type support members 2, thereby achieving angular positioning of the outer end faces of the connecting blocks 23 and the positioning blocks 24 of the multiple frame-type support members 2;

[0100] Multiple clamping assemblies are respectively arranged on the top of the upper annular plate 12 and distributed along different radial directions of the splicing position 14, and are used to clamp the top ends of the positioning blocks 24 of multiple frame-type support members 2 one by one, thereby fastening the top ends of the connecting blocks 23 of multiple frame-type support members 2.

[0101] That is to say, the structural form of the splicing tool 1 is designed in such a way that it is convenient to sequentially install multiple single-leaf wax mold assemblies along the circumferential direction, and it is also convenient to set up corresponding functional components to achieve corresponding positioning or pressing of the frame-type support parts 2 of multiple single-leaf wax mold assemblies.

[0102] Further, if Figure 6 As shown, the radial positioning assembly includes:

[0103] An inner positioning ring 15 is provided on the top of the base 11 and located inside the splicing position 14, and is used to contact and cooperate with the first side ends of the positioning blocks 24 of the multiple single-leaf wax model assemblies;

[0104] A plurality of external positioning blocks 16 are arranged on the top of the base 11 and located on the outside of the splicing position 14, and are used to contact and cooperate with the second side ends of the plurality of positioning blocks 24 one by one; wherein the first side end of the positioning block 24 faces the inside of the splicing position 14, and the second side end faces the outside of the splicing position 14.

[0105] It should be noted that the inner positioning ring 15 is the inner radial positioning component mentioned above, and the multiple outer positioning blocks 16 are the outer radial positioning components mentioned above, and are located at different radial directions of the splicing position 14; in addition, the first side end of the positioning block 24 is the inner end face of the positioning block 24 mentioned above, and the second side end is the outer end face of the positioning block 24 mentioned above; that is to say, this method of realizing radial positioning of the inner and outer end faces of the positioning blocks 24 of multiple frame-type support members 2 has the characteristics of simple structure and convenient positioning; of course, the outer radial positioning component can also adopt an outer positioning ring, and the inner radial positioning component can also adopt multiple inner positioning blocks, which will not be repeated here.

[0106] Furthermore, if Figure 8 As shown, the pressing assembly includes: a fixing block 17 and a first latch 18;

[0107] like Figure 7 As shown, the fixing block 17 is arranged on the top of the upper annular plate 12, and its first portion is located above the connecting block 23; Figure 11 As shown, a first pin hole 23.1 is formed at the top of the connecting block 23;

[0108] The first latch pin 18 is used to pass through the first portion of the fixing block 17 and be inserted into and pressed against the first latch pin hole 23 . 1 of the connecting block 23 .

[0109] Among them, such as Figure 8 As shown, the fixing block 17 can be a long strip of fixing block, and is arranged on the top of the upper annular plate 12, and its first part protrudes above the connecting block 23; Figure 11 As shown, the top of the connecting block 23 and the portion corresponding to the first portion of the fixing block 17 are provided with a first pin hole 23.1; the first portion of the fixing block 17 is also provided with a first plug hole, which corresponds to the first pin hole 23.1 at the top of the connecting block 23; Figure 5 As shown, the first latch 18 is used to pass through the first insertion hole of the first part of the fixing block 17, and is inserted into and pressed against the first latch hole 23.1 of the connecting block 23. In this way, not only the top of the connecting block 23 is conveniently pressed, but also the top of the connecting block 23 can be corrected angularly, thereby preventing the top of the frame support 2 from tilting outward (outside the splicing position 14). In addition, in order to improve the pressing effect and angular correction effect of the top of the frame support 2, as shown in FIG. Figure 8As shown, the number of the first pins 18 can be two, the number of the first pin holes 23.1 and the first sockets can both be two, and the two first sockets are distributed on the left and right sides of the first part of the fixing block 17, as shown in FIG. Figure 5 As shown, the two first pins 18 are used to pass through the two first plug holes of the first part of the fixing block 17 one by one, and are inserted into and pressed against the two first pin holes 23.1 of the connecting block 23 one by one; of course, other methods can also be used to press the top of the connecting block 23, such as using a pressing block that is threadedly assembled with the first part of the fixing block 17, which will not be repeated here.

[0110] In this program, if Figure 8 and Figure 9 As shown, the angular positioning assembly includes: a second latch 110, a third latch 111, a second latch operating assembly 116 and a third latch operating assembly 117;

[0111] like Figure 11 As shown, the second side end of the connecting block 23 is provided with a second latch hole 23.2, and the second side end of the positioning block 24 is provided with a third latch hole 24.1; wherein the second side end of the connecting block 23 faces the outside of the splicing position 24;

[0112] like Figure 7 and Figure 8 As shown, the second latch 110 can be radially slidably disposed in the fixed block 17 and has a switchable extended position and retracted position, as shown in FIG. Figure 7 As shown, the second latch 110 extends out of the fixed block 17 and is inserted into the second latch hole 23.2 of the connecting block 23 when in the extended position, and is located in the fixed block 17 when in the retracted position; the second latch operating assembly 116 is provided on the top of the upper annular plate 12 and is used to drive the second latch 110 to switch between the extended position and the retracted position;

[0113] like Figure 9 As shown, the third latch 111 can be radially slidably arranged in the outer positioning block 16, and has a switchable extended position and a retracted position. When the third latch 111 is in the extended position, it extends out of the outer positioning block 16 and is inserted into the third latch hole 24.1 of the positioning block 24, and is located in the outer positioning block 16 when it is in the retracted position; the third latch operating component 117 is arranged at the top of the base 11, and is used to drive the third latch 111 to switch between the extended position and the retracted position.

[0114] It should be noted that if Figure 11 As shown, the second side end (ie, the outer end surface) of the connecting block 23 is provided with a second pin hole 23.2, and the second side end (ie, the outer end surface) of the positioning block 24 is provided with a third pin hole 24.1; Figure 7As shown, the second latch 110 is radially slidably disposed in the lower portion of the fixed block 17, and when in the extended position, it extends out of the lower portion of the fixed block 17 and is inserted into the second latch hole 23.2 of the connecting block 23, and when in the retracted position, it is located in the lower portion of the fixed block 17; Figure 8 As shown, the angular positioning assembly further includes a support 19, which is disposed on the top of the upper annular plate 12, and a fixing block 17 is disposed on the support 19; Figure 8 As shown, the second latch operating assembly 116 is provided on the support 19, and the second latch 110 can be switched between the extended position and the retracted position by manually operating the second latch operating assembly 116; wherein, the second latch operating assembly 116 has an operating handle, when the operating handle of the second latch operating assembly 116 is manually operated to rotate from a horizontal state to a vertical state (vertical downward state) (such as Figure 8 As shown in FIG2 , the movable end of the second latch operating assembly 116 will slide the second latch 110 out to the extended position, and at this time, the operating handle of the second latch operating assembly 116 can also be in a self-locking state, so that the second latch 110 is locked in the extended position; when the operating handle of the second latch operating assembly 116 is manually rotated from the vertical state to the horizontal state (the operating handle will naturally unlock as long as it is manually rotated), the movable end of the second latch operating assembly 116 will slide the second latch 110 back to the retracted position, and the second latch 110 will be disengaged from the second latch hole 23.2 of the connecting block 23; of course, the second latch 110 and the second latch operating assembly 116 are the upper angular positioning assembly mentioned above;

[0115] like Figure 9 As shown, the third latch 111 can be radially slidably arranged in the outer positioning block 16, and when it is extended out of the working position, it extends out of the outer positioning block 16 and is inserted into the third latch hole 24.1 of the positioning block 24, and is located in the outer positioning block 16 when it is retracted into the working position; the third latch operating component 117 is arranged on the top of the base 11, and its structure can be referred to Figure 9 As shown, by manually operating the third latch operating component 117, the third latch 111 can be switched between the extended position and the retracted position; wherein the third latch operating component 117 also has an operating handle. When the operating handle of the third latch operating component 117 is manually operated to rotate from a horizontal state to a vertical state (vertical upward state) (as shown in FIG. Figure 9When the third latch 111 is released from the third latch hole 24.1 of the positioning block 24, the movable end of the third latch operating assembly 117 will slide the third latch 111 to the extended position, and the operating handle of the third latch operating assembly 117 can also be in a self-locking state, so that the third latch 111 is locked in the extended position; when the operating handle of the third latch operating assembly 117 is manually operated to rotate from the vertical state to the horizontal state (the operating handle will be unlocked as long as it is manually rotated), the movable end of the third latch operating assembly 117 will slide the third latch 111 back to the retracted position, and the third latch 111 will be released from the third latch hole 24.1 of the positioning block 24; in addition, in order to improve the angular correction effect of the outer end surface of the positioning block 24, as shown in FIG. Figure 9 As shown, the number of the third latches 111 can be two, and the two third latches 111 can be radially slidably set in the left and right sides of the outer positioning block 16 respectively. The number of the third latch holes 24.1 of the positioning block 24 is also correspondingly two, and the third latch operating component 117 is used to drive the two third latches 111 to switch between the extended position and the retracted position; of course, the third latch 111 and the third latch operating component 117 are the lower angular positioning components mentioned above.

[0116] That is to say, the angular positioning component realizes angular positioning of the outer end faces of the connecting block 23 and the positioning block 24 of the frame support 2, and adopts a three-point angular positioning of one point above and two points below. This can better prevent the frame support 2 from tilting outward, to the left or to the right, thereby better ensuring that the frame support 2 is in a vertical position at the splicing position 14.

[0117] Specifically, if Figure 4 As shown, the bottom ends of the plurality of positioning blocks 24 are each provided with positioning grooves 24.2, and are distributed along different radial directions of the splicing position 14;

[0118] like Figure 6 As shown, the splicing position 14 is provided with a plurality of positioning strips 112 along different radial directions, and is used to cooperate with the positioning grooves 24 . 2 of the plurality of positioning blocks 24 one by one.

[0119] Among them, the positioning grooves 24.2 at the bottom ends of the plurality of positioning blocks 24 are distributed along the corresponding radial directions of the splicing position 14; Figure 6 As shown, the splicing position 14 is provided with a plurality of positioning bar mounting grooves along different radial directions. The plurality of positioning bars 112 are mounted one by one in the plurality of positioning bar mounting grooves of the splicing position 14 and are used to cooperate one by one with the positioning grooves 24.2 at the bottom ends of the plurality of positioning blocks 24. This not only facilitates the rapid positioning and installation of the positioning blocks 24 of the plurality of frame-type support members 2 on the splicing position 14 of the splicing fixture 1, but also provides a certain angular positioning effect, preventing the frame-type support members 2 from tilting to the left or right on the splicing position 14 of the splicing fixture 1, and also serves to limit the bottom ends of the positioning blocks 24 of the plurality of frame-type support members 2.

[0120] Furthermore, the splicing tool 1 also includes a plurality of outer web positioning components;

[0121] like Figure 6 As shown, multiple outer web positioning assemblies are respectively arranged on the top of the base 11, and are used to contact and cooperate with the outer walls of the outer webs 41 of the single-leaf wax molds 4 of the multiple single-leaf wax mold assemblies. In other words, the multiple outer web positioning assemblies are used to adapt and contact with the outer walls of the outer webs 41 of the single-leaf wax molds 4 of the multiple single-leaf wax mold assemblies, and are also used to provide position limits for the outer walls of the outer webs 41 of the multiple single-leaf wax mold assemblies, thereby preventing the outer walls of the outer webs 41 of the multiple single-leaf wax mold 4 from being locally deformed and warped outward, thereby ensuring the outer shapes of the outer webs 41 of the multiple single-leaf wax mold 4. Of course, the positioning profile of the outer web positioning assembly used to contact the outer wall of the outer web 41 of the single-leaf wax mold 4 needs to adapt to the outer wall of the outer web 41 of the single-leaf wax mold 4, so that the positioning profile of the outer web positioning assembly can adapt and contact with the outer wall of the outer web 41 of the single-leaf wax mold 4. In addition, the distribution of the multiple outer web positioning assemblies, the multiple columns 13 and the multiple outer positioning blocks 16 on the top of the base 11 will not interfere with each other.

[0122] Furthermore, if Figure 10 As shown, the outer web positioning assembly includes: a support column 113, a positioning rod 114 and a positioning rod operating assembly 118;

[0123] like Figure 6 As shown, the support 113 is provided on the top of the base 11;

[0124] like Figure 10 As shown, the positioning rod 114 is radially slidably disposed on the support 113 and has a switchable extended position and retracted position. The free end of the positioning rod 114 is provided with a positioning head 115. When the positioning rod 114 is in the extended position, the positioning head 115 contacts and cooperates with the outer wall of the outer web 41 of the single-leaf wax mold 4. When the positioning rod 114 is in the retracted position, the positioning head 115 is separated from the outer wall of the outer web 41 of the single-leaf wax mold 4.

[0125] The positioning rod operating assembly 118 is disposed on the support column 113 and is used to drive the positioning rod 114 to switch between the extended position and the retracted position.

[0126] It should be noted that if Figure 10 As shown, the positioning rod 114 can slide radially and penetrate the support 113; the positioning head 115 at the free end of the positioning rod 114 has the positioning profile (which can be a positioning inclined surface) described above, and is used to adapt to the outer wall of the outer web 41 of the single-leaf wax mold 4; when the positioning rod 114 is extended to the working position, the positioning head 115 adapts to the outer wall of the outer web 41 of the single-leaf wax mold 4, and when it is retracted to the working position, the positioning head 115 is separated from the outer wall of the outer web 41 of the single-leaf wax mold 4; the structure of the positioning rod operating assembly 118 can be referred to Figure 10 As shown, by manually operating the positioning rod operating assembly 118, the positioning rod 114 can be switched between the extended position and the retracted position; wherein the positioning rod operating assembly 118 also has an operating handle. When the operating handle of the positioning rod operating assembly 118 is manually operated and rotated from the horizontal state to the upward state (such as Figure 10 When the handle of the positioning rod operating assembly 118 is manually operated and rotated from the upward state to the horizontal state (the operating handle will be unlocked as long as it is manually rotated), the movable end of the positioning rod operating assembly 118 will slide the positioning rod 114 back to the retracted position, and the positioning head 115 will be separated from the outer abdomen of the single-leaf wax mold 4. The outer wall of the plate 41; of course, the outer web positioning assembly is designed in this way, so that the outer wall of the outer web 41 of the single-leaf wax mold 4 can be positioned accurately and reliably; in addition, without affecting the welding of the joints of the single-leaf wax molds 4 of the two adjacent single-leaf wax mold assemblies, similarly, a plurality of inner web positioning assemblies can be provided on the inner side of the splicing position 14, and the plurality of inner web positioning assemblies are respectively arranged on the top of the base 11 and distributed along different radial directions of the splicing position 14, and are used to contact and cooperate with the outer walls of the inner webs 42 of the single-leaf wax molds 4 of the plurality of single-leaf wax mold assemblies one by one.

[0127] Of course, the various components of the frame support 2 and the splicing tooling 2 may not be able to be installed during positioning or pressing, taking into account the processing errors and assembly tolerances of the above parts. Therefore, a certain fitting clearance can be allowed to eliminate the occurrence of the above situation.

[0128] Furthermore, if Figure 12 As shown, the tooling for splicing wax models of complex hollow thin-walled guides provided by the embodiment of the present invention further includes a turning platform 5;

[0129] The movable end of the flip platform 5 is located at the top of the flip platform 5 and can rotate 360 degrees around the vertical direction and can flip 90 degrees around the horizontal direction;

[0130] The bottom of the splicing tool 1 is disposed at the movable end of the turning platform 5. This facilitates the splicing tool 1 to rotate 360° about the vertical direction (i.e., the Z-axis), thereby enabling the multiple single-leaf wax model assemblies to rotate 360°, ensuring that the seam between each adjacent single-leaf wax model 4 is welded intact. It also facilitates the splicing tool 1 to flip 90° about the horizontal direction (i.e., the X-axis), thereby flipping the multiple single-leaf wax model assemblies 90° as a whole, facilitating welding of the seam between adjacent single-leaf wax models 4. In other words, by adjusting the posture of the splicing tool 1 through the turning platform 5, welding of the seams between the multiple single-leaf wax models 4 is facilitated.

[0131] Among them, Figure 13 and Figure 14 As shown, the flip platform 5 includes: a turntable 51, a rotating shaft 52, a first motor assembly 53, a second motor assembly 54, a bracket 55, a first transmission assembly, a first transmission assembly shell, a second transmission assembly and a machine cover 56; the rotating shaft 52 can be rotated in the horizontal direction and is arranged on the bracket 55; the second motor assembly 54 is arranged on one side of the bracket 55, and its output end is driven by the second transmission assembly and one end of the rotating shaft 52 to drive the rotating shaft 52 to be flipped 90 degrees in the horizontal direction; of course, the second transmission assembly is also arranged on the bracket 55, and a transmission belt assembly can be used; the first transmission assembly shell is arranged in the middle part of the rotating shaft 52, and is driven by the middle part of the rotating shaft 52 Through; the turntable 51 can be rotated in the vertical direction and is arranged at the top of the first transmission component shell, which serves as the movable end of the flip platform 5; the first motor assembly 53 is arranged at the bottom of the first transmission component shell; the first transmission assembly is arranged in the first transmission component shell, and the output end of the first motor assembly 53 is transmitted and cooperated with the turntable 51 through the first transmission assembly to drive the turntable 51 to rotate 360° in the vertical direction; the machine cover 56 is arranged on the bracket 55, and is used to cover the two ends of the rotating shaft 52, the first motor assembly 53 and the second motor assembly 54; of course, the flip platform 5 also includes a switch for controlling the operation of the first motor assembly 53 and the second motor assembly 54.

[0132] The embodiment of the present invention further provides a method for preparing a complex hollow thin-walled guide splicing wax pattern, which is prepared using the tooling for splicing a complex hollow thin-walled guide splicing wax pattern as described above. The preparation method comprises:

[0133] Installing the single-blade core 3 into the frame-type support 2 to form a single-blade core assembly with the frame-type support 2;

[0134] The single-leaf core assembly is placed in the single-leaf mold and the single-leaf core 3 is wax-injected and pressed to form a single-leaf wax mold assembly with a frame-type support member 2. After the wax injection and pressing of the single-leaf wax mold is completed, the single-leaf wax mold assembly is taken out as a whole;

[0135] Insert multiple single-leaf wax pattern assemblies into the splicing tool 1 along the circumferential direction, so that the sides of the single-leaf wax patterns 4 of two adjacent multiple single-leaf wax pattern assemblies are in contact and form a seam;

[0136] The radial positioning assembly of the splicing tool 1 is used to radially position the frame-type support members 2 of the multiple single-blade wax model assemblies, the angular positioning assembly is used to angularly position the multiple frame-type support members 2 one by one, and the multiple pressing assemblies are used to press the multiple frame-type support members 2 one by one. Since this solution adopts the above-mentioned tooling for splicing wax models of complex hollow thin-walled guides for preparation, it also has corresponding beneficial effects. For details, please refer to the previous description and will not be repeated here; of course, for matters not covered by this solution, please refer to the design of the above-mentioned tooling. More specifically, the preparation method of the complex hollow thin-walled guide splicing wax model provided by this solution can adopt the following technical solution:

[0137] 1. After coating the single-blade ceramic core with wax, hard core supports of different thicknesses (not shown in the figure) are attached to the blade base and blade back. The single-blade ceramic core is then pre-installed into the frame-type embedded component (i.e., the frame-type support component 2). The entire single-blade ceramic core with the frame-type embedded component is then placed into the single-blade mold and wax-injected and pressed.

[0138] 2. After the single-blade wax mold is pressed, remove the single-blade wax mold with the frame-type embedded parts as a whole to prevent the single-blade wax mold from deformation;

[0139] 3. Use an ultrasonic thickness gauge to measure the wall thickness of the single-blade wax model to confirm that the wall thickness is qualified; use an X-ray machine to check whether the core of the single-blade wax model is broken;

[0140] 4. Place multiple single-blade wax models with frame-type embedded parts into the splicing tooling, and position them through the frame-type embedded parts to improve the splicing positioning accuracy;

[0141] 5. Use the radial positioning assembly, angular positioning assembly and locking device (i.e., clamping assembly) of the splicing tooling to position and lock the radial, angular and height of multiple frame-type embedded parts;

[0142] 6. Use the flip platform to pitch the splicing tooling and rotate the wax model 90° to facilitate wax model welding;

[0143] 7. Use the flip platform to rotate the splicing tooling to achieve 360° rotation of the wax model to ensure that each wax model seam is welded intact;

[0144] 8. The assembled wax model is removed from the assembly tool as a whole, and the frame-type embedded parts of the single-blade wax model are removed one by one using the cross-direction disassembly method.

[0145] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0146] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A tooling for splicing wax models of complex hollow thin-walled guides, wherein: The complex hollow thin-walled guider splicing wax model is formed by splicing a plurality of single-blade wax models along the circumferential direction, and is characterized in that the tooling comprises: a splicing tooling (1) and a plurality of frame-type support members (2); The frame-type support member (2) is used to be loaded with a single-blade core (3) to form a single-blade core assembly with the frame-type support member (2); The single-leaf core component is used to be placed in a single-leaf mold to perform wax injection pressing on the single-leaf core (3) to form a single-leaf wax mold component with a frame-type support member (2); wherein, in the single-leaf wax mold component, the frame-type support member (2) is used to respectively support the inner and outer webs and the middle core portion of the single-leaf wax mold (4), and its two side portions do not protrude from the two side portions of the inner and outer webs of the single-leaf wax mold (4); The plurality of single-leaf wax mold assemblies are used to be installed in the splicing tool (1) along the circumferential direction, and the side portions of the single-leaf wax molds (4) of two adjacent single-leaf wax mold assemblies are in contact and form a butt joint; wherein the splicing tool (1) is provided with a radial positioning assembly for cooperating with the frame-type support members (2) of the plurality of single-leaf wax mold assemblies, and is provided with a plurality of angular positioning assemblies for cooperating one by one with the plurality of frame-type support members (2), and is provided with a plurality of pressing assemblies for pressing the plurality of frame-type support members (2) one by one.

2. The tooling for splicing wax patterns of complex hollow thin-walled guides according to claim 1 is characterized in that: The frame-type support member (2) comprises: a first support plate (21), a second support plate (22), a connecting block (23) and a positioning block (24); In the single-blade wax model assembly, the first support plate (21) and the second support plate (22) are They are respectively fitted with the inner walls of the outer web (41) and the inner web (42) of the single-blade wax model (4), and the middle portion thereof is respectively provided with a first supporting hole and a second supporting hole for the middle core portion (43) of the single-blade wax model (4) to pass through, and the two side portions are respectively flush with the two side portions of the outer web (41) and the inner web (42), the top portion is connected with the connecting block (23), and the bottom portion is connected with the positioning block (24); The radial positioning assembly is used to cooperate with the positioning blocks (24) of the plurality of single-blade wax mold assemblies; The plurality of angular positioning assemblies are used to cooperate with the positioning blocks (24) and / or the connecting blocks (23) of the plurality of single-blade wax mold assemblies; The plurality of pressing assemblies are used to press the top ends of the connecting blocks (23) of the plurality of single-leaf wax mold assemblies one by one.

3. The tooling for splicing wax patterns of complex hollow thin-walled guides according to claim 2 is characterized in that: The splicing tool (1) comprises: a base (11), an upper annular plate (12) and a plurality of columns (13); The top of the base (11) is provided with an annular splicing position (14); The upper annular plate (12) is arranged above the base (11) through a plurality of the upright columns (13) and is located outside the splicing position (14); The plurality of single-blade wax mold assemblies are used to be installed in the splicing position (14) of the base (11) along the circumferential direction; The radial positioning components are arranged on the top of the base (11) and are respectively located on the inner side and the outer side of the splicing position (14); The plurality of angular positioning components are respectively arranged on the top of the base (11) and / or the upper annular plate (12), and are distributed along different radial directions of the splicing position (14); The plurality of pressing assemblies are respectively arranged on the top of the upper annular plate (12) and are distributed along different radial directions of the splicing position (14).

4. The tooling for splicing wax patterns of complex hollow thin-walled guides according to claim 3 is characterized in that: The radial positioning assembly comprises: An inner positioning ring (15) disposed on the top of the base (11) and located inside the splicing position (14), and used for contacting and cooperating with the first side ends of the positioning blocks (24) of the plurality of single-leaf wax mold assemblies; A plurality of outer positioning blocks (16) are arranged on the top of the base (11) and located outside the splicing position (14), and are used to contact and cooperate with the second side ends of the plurality of positioning blocks (24) one by one; wherein the first side ends of the positioning blocks (24) face the inside of the splicing position (14), and the second side ends face the outside of the splicing position (14).

5. The tooling for splicing wax patterns of complex hollow thin-walled guides according to claim 4 is characterized in that: The pressing assembly comprises: a fixing block (17) and a first latch (18); The fixing block (17) is arranged on the top of the upper annular plate (12), and the first portion thereof is located above the connecting block (23); wherein the top end of the connecting block (23) is provided with a first pin hole (23.1); The first latch (18) is used to pass through the first part of the fixing block (17) and to be inserted into and pressed against the first latch hole (23.1) of the connecting block (23).

6. The tooling for splicing wax patterns of complex hollow thin-walled guides according to claim 5 is characterized in that: The angular positioning assembly comprises: a second latch (110), a third latch (111), a second latch operating assembly (116) and a third latch operating assembly (117); The second side end of the connecting block (23) is provided with a second latch hole (23.2), and the second side end of the positioning block (24) is provided with a third latch hole (24.1); wherein the second side end of the connecting block (23) faces the outside of the splicing position (24); The second latch (110) can be radially slidably arranged in the fixed block (17) and has a switchable extended position and a retracted position. When in the extended position, the second latch (110) extends out of the fixed block (17) and is inserted into the second latch hole (23.2) of the connecting block (23), and is located in the fixed block (17) when in the retracted position. The second latch operating assembly (116) is arranged on the top of the upper annular plate (12) and is used to drive the second latch (110) to switch between the extended position and the retracted position. The third latch (111) can be radially slidably arranged in the outer positioning block (16) and has a switchable extended position and a retracted position. When in the extended position, the third latch (111) extends out of the outer positioning block (16) and is inserted into the third latch hole (24.1) of the positioning block (24), and is located in the outer positioning block (16) when in the retracted position. The third latch operating assembly (117) is arranged on the top of the base (11) and is used to drive the third latch (111) to switch between the extended position and the retracted position.

7. The tooling for splicing wax patterns of complex hollow thin-walled guides according to claim 3 is characterized in that: The bottom ends of the plurality of positioning blocks (24) are each provided with positioning grooves (24.2), and are distributed in different radial directions along the splicing position (14); The splicing position (14) is provided with a plurality of positioning strips (112) along different radial directions, and is used to cooperate one by one with the positioning grooves (24.2) of the plurality of positioning blocks (24).

8. The tooling for splicing wax patterns of complex hollow thin-walled guides according to claim 3 is characterized in that: The splicing tool (1) further comprises a plurality of outer web positioning components; The plurality of outer web positioning assemblies are respectively arranged on the top of the base (11) and are used for one-to-one contact and cooperation with the outer walls of the outer webs (41) of the single-leaf wax molds (4) of the plurality of single-leaf wax mold assemblies.

9. The tooling for splicing wax patterns of complex hollow thin-walled guides according to claim 8, characterized in that: The outer web positioning assembly includes: a pillar (113), a positioning rod (114) and a positioning rod operating assembly (118); The support column (113) is arranged on the top of the base (11); The positioning rod (114) can be radially slidably arranged on the support (113) and has a switchable extension position and retraction position. The free end of the positioning rod (114) is provided with a positioning head (115). When the positioning rod (114) is in the extension position, the positioning head (115) contacts and cooperates with the outer wall of the outer web (41) of the single-leaf wax mold (4). When the positioning rod (114) is in the retraction position, the positioning head (115) is separated from the outer wall of the outer web (41) of the single-leaf wax mold (4). The positioning rod operating assembly (118) is arranged on the pillar (113) and is used to drive the positioning rod (114) to switch between an extending position and a retracting position.

10. The tooling for splicing wax patterns of complex hollow thin-walled guides according to claim 1, characterized in that: Also included is a flip platform (5); The movable end of the flip platform (5) is located at the top of the flip platform (5) and can rotate 360° around the vertical direction and can flip 90° around the horizontal direction; The bottom of the splicing tool (1) is arranged at the movable end of the turning platform (5).

11. A method for preparing a complex hollow thin-walled guide splicing wax pattern, using the tooling for preparing a complex hollow thin-walled guide splicing wax pattern according to any one of claims 1 to 10, characterized in that: The preparation method comprises: The single blade core (3) is installed in the frame type support member (2) to form a single blade core assembly with the frame type support member (2); The single-leaf core assembly is placed in the single-leaf mold and the single-leaf core (3) is wax-injected and pressed to form a single-leaf wax mold assembly with a frame-type support member (2). After the wax injection and pressing of the single-leaf wax mold is completed, the single-leaf wax mold assembly is taken out as a whole; The plurality of single-leaf wax mold assemblies are installed into the splicing tool (1) along the circumferential direction, so that the side portions of the single-leaf wax molds (4) of two adjacent plurality of single-leaf wax mold assemblies contact and form a butt joint; The radial positioning assembly of the splicing tool (1) is used to radially position the frame-type support members (2) of the plurality of single-blade wax mold assemblies, the angular positioning assembly is used to angularly position the plurality of frame-type support members (2) one by one, and the plurality of pressing assemblies are used to press the plurality of frame-type support members (2) one by one.

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