Double-shell integrally-formed sand core winding tool
Through the double-shell integrated sand core winding tooling, the problem of concentric deviation between the front and rear shells of the composite cylinder is solved, and high-precision molding and simplified process flow are achieved.
Patent Information
- Application Number
- CN202421257042.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-04
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2034-06-04
AI Technical Summary
The concentric deviation of the front and rear shells of the composite cylinder leads to the inability to meet the technical requirements of concentricity.
The double-shell integrated sand core wound tooling is adopted. Through the cooperation of the winding tooling, the double-shell cylinder and the reinforcement component, the first forming of the front and rear housings is achieved, concentric deviation is reduced, and mold removal is rinsed by water to simplify the process flow.
The concentric deviation between the front and rear shells is achieved by extremely small, simplifying the process flow, facilitating mold release, and improving the precision and stability of molding.
Smart Images
Figure CN222679482U_ABST
Abstract
Description
Technical Field
[0001] The utility model patent relates to the technical field of composite material shell manufacturing, and specifically, to a double-shell integrally formed sand core winding tooling. Background Art
[0002] Advanced composite materials have the characteristics of high specific strength, high specific modulus, fatigue resistance, impact resistance, corrosion resistance, etc. They meet the technical requirements of high load-bearing capacity of solid engine casings and have been widely used in the development of various types of solid launch rocket engine casings.
[0003] Some special structure cylinders are formed by connecting the front and rear shells, and the concentricity of the front and rear shells is required to be high. However, in the common winding process, the front and rear shells are formed separately. After the production, the concentricity of the front and rear shells deviates and cannot meet the requirements. Therefore, a double-shell integrated sand core winding tooling is proposed to solve the above problem. Utility Model Content
[0004] The utility model aims to provide a double-shell integrated sand core winding tooling, aiming to solve the problem of concentric deviation between the front and rear shells of a composite material cylinder.
[0005] The utility model is implemented as follows: a double-shell integrated sand core winding tooling includes a winding tooling, a double-shell cylinder and a reinforcement component;
[0006] The winding tool is adapted to the double-shell cylinder, the winding tool is installed with the double-shell cylinder via external screws and nuts, and the winding tool is installed with the double-shell cylinder and the reinforcement assembly.
[0007] Further, the winding tooling includes a mandrel, a front shell fake head is fixedly installed on the left side of the outer surface of the mandrel, a front shell joint positioning seat is fixedly installed on the right side of the front shell fake head, a spacer seat is fixedly installed on the left side of the center of the outer surface of the mandrel, a front shell sand core mold is fixedly installed between the spacer seat and the front shell joint positioning seat, a rear shell fake head is fixedly installed on the right side of the outer surface of the mandrel, a rear shell joint positioning seat is fixedly installed on the left side of the rear shell fake head, and a rear shell sand core mold is fixedly installed between the rear shell joint positioning seat and the spacer seat.
[0008] Furthermore, a first positioning surface is provided on the left side of the spacer seat, a second positioning surface is provided on the right side of the spacer seat, and a cutting groove is provided at the center of the outer surface of the spacer seat.
[0009] Furthermore, the double shell cylinder includes a front shell joint A and a front shell joint B and a rear shell joint A, the front shell joint B and the rear shell joint B are fixedly installed, a front shell winding layer is fixedly installed between the front shell joint A and the front shell joint B, and a rear shell winding layer is fixedly installed between the rear shell joint B and the rear shell joint A.
[0010] Furthermore, the reinforcement assembly includes a reinforcement ring, and two reinforcement rings are provided, and connecting blocks are fixedly connected to the left and right sides of the opposite sides of the two reinforcement rings, and the connecting blocks are provided with through holes that penetrate up and down, and reinforcement bolts penetrate the through holes, and reinforcement nuts are threadedly connected to the lower outer surface of the reinforcement bolts.
[0011] Furthermore, the opposite sides of each two connecting blocks are in contact with each other, and the top of the reinforcing nut is in contact with the outer surface of the connecting block.
[0012] Furthermore, the two reinforcement rings are both compatible with the double-shell cylinder.
[0013] Compared with the prior art, the utility model can form two shells at one time, so that the concentric deviation of the front and rear shells is extremely small, and after the forming is completed, the sand core mold can be directly washed and removed with water, which is convenient for demoulding. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the front cross-sectional structure of a winding tooling of a double-shell integrated sand core winding tooling provided by the utility model;
[0015] Figure 2 It is a schematic diagram of the front cross-sectional structure of a double-shell cylinder of a double-shell integrated sand core winding tooling provided by the utility model;
[0016] Figure 3 It is a schematic diagram of the front view structure of a spacing seat of a double-shell integrated sand core winding tooling provided by the utility model;
[0017] Figure 4 It is a schematic diagram of the front cross-sectional structure of a reinforcement component of a double-shell integrally formed sand core winding tooling provided by the utility model.
[0018] The figure marks involved in the above drawings are: 1. Winding tooling; 11. Mandrel; 12. Front shell false head; 13. Front shell joint positioning seat; 14. Front shell sand core mold; 15. Spacer seat; 151. Positioning surface one; 152. Cutting groove; 153. Positioning surface two; 16. Rear shell sand core mold; 17. Rear shell joint positioning seat; 18. Rear shell false head; 2. Double shell cylinder; 21. Front shell joint A; 22. Front shell winding layer; 23. Front shell joint B; 24. Rear shell joint B; 25. Rear shell winding layer; 26. Rear shell joint A; 3. Reinforcement assembly; 31. Reinforcement ring; 32. Connecting block; 33. Through hole; 34. Reinforcement bolt; 35. Reinforcement nut. DETAILED DESCRIPTION
[0019] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.
[0020] The implementation of the present utility model is described in detail below in conjunction with specific embodiments.
[0021] according to Figure 1-4 As shown, a double-shell integrated sand core winding tool comprises a winding tool 1, a double-shell cylinder 2 and a reinforcement component 3;
[0022] The winding tool 1 is adapted to the double-shell cylinder 2, and the winding tool 1 is installed with the double-shell cylinder 2 through external screws and nuts, and the winding tool 1 is installed with the double-shell cylinder 2 and the reinforcement component 3; during operation, the winding tool 1 and the double-shell cylinder 2 are first fixed and installed through screws and nuts, and reinforced by the reinforcement component 3 after installation, and then wound and cured after installation, and the front and rear shells can be cut open immediately after the curing is completed, and then the front shell and the rear shell can be pulled out, and finally rinsed with water, and after the rinsing is completed, the front and rear shells are taken out to complete all the processes.
[0023] The winding tooling 1 includes a mandrel 11, a front shell false head 12 is fixedly installed on the left side of the outer surface of the mandrel 11, a front shell joint positioning seat 13 is fixedly installed on the right side of the front shell false head 12, a spacer seat 15 is fixedly installed on the left side of the center of the outer surface of the mandrel 11, a front shell sand core mold 14 is fixedly installed between the spacer seat 15 and the front shell joint positioning seat 13, a rear shell false head 18 is fixedly installed on the right side of the outer surface of the mandrel 11, a rear shell joint positioning seat 17 is fixedly installed on the left side of the rear shell false head 18, and a rear shell sand core mold 16 is fixedly installed between the rear shell positioning seat and the spacer seat 15.
[0024] A positioning surface 151 is provided on the left side of the spacer seat 15, a positioning surface 2 153 is provided on the right side of the spacer seat 15, and a cutting groove 152 is opened at the center of the outer surface of the spacer seat 15; during operation, the positioning surface 151 and the positioning surface 2 153 are used to facilitate positioning and installation, and the cutting groove 152 is used to facilitate cutting of the front and rear shells.
[0025] The double shell cylinder 2 includes a front shell joint A21 and a front shell joint B23 and a rear shell joint B24 and a rear shell joint A26, wherein the front shell joint B23 and the rear shell joint B24 are fixedly installed, a front shell winding layer 22 is fixedly installed between the front shell joint A21 and the front shell joint B23, and a rear shell winding layer 25 is fixedly installed between the rear shell joint B24 and the rear shell joint A26; when working, the front shell joint B23 is installed from left to right on the spacer seat 15, and then the front shell sand core mold 14 is installed from left to right on the core shaft 11, and is tightly attached to the spacer seat 15, and the front shell joint A21 and the front shell joint positioning seat 13 are installed together, fastened with screws, and inserted into the core shaft 11, and then the front shell false head 12 is installed in place, fastened with nuts, all parts of the front shell are fastened, and the rear shell joint B24 is continued to be installed from right to left on the spacer seat 15, and then the rear shell sand core mold 16 is installed from right to left on the core shaft 11 and fits tightly with the spacer seat 15, the front shell joint A21 is installed together with the rear shell joint positioning seat 17, fastened with screws, and inserted into the core shaft 11, and then the rear shell false head 18 is installed in place, fastened with nuts, all parts of the rear shell are fastened, the front shell winding layer 22 and the rear shell winding layer 25 are wound, and then cured.
[0026] The reinforcement assembly 3 includes a reinforcement ring 31, and two reinforcement rings 31 are provided. The left and right sides of the opposite sides of the two reinforcement rings 31 are fixedly connected with connecting blocks 32. The connecting block 32 is provided with a through hole 33 that penetrates up and down. A reinforcement bolt 34 penetrates the through hole 33, and a reinforcement nut 35 is threadedly connected under the outer surface of the reinforcement bolt 34. When working, the two reinforcement rings 31 are sleeved on the outer surface of the winding tooling 1 and the double-shell cylinder 2 after installation to reinforce them, and the two groups of connecting blocks 32 of the two reinforcement rings 31 are fitted together and connected to the reinforcement nuts 35 through the reinforcement bolts 34 that penetrate the through holes 33, so that the two reinforcement rings 31 are firmly connected, thereby making the reinforcement stable.
[0027] The opposite sides of each two connecting blocks 32 are fitted together, and the top of the reinforcing nut 35 is fitted with the outer surface of the connecting block 32; during operation, the two reinforcing rings 31 can be separated and fitted, and the reinforcing nut 35 can be rotated and separated.
[0028] The two reinforcement rings 31 are both compatible with the double-shell cylinder 2; during operation, the reinforcement rings 31 are easily installed and reinforced.
[0029] Working principle: First, install the front shell joint B23 from left to right on the spacer seat 15, then install the front shell sand core mold 14 from left to right on the mandrel 11, and fit it tightly with the spacer seat 15, install the front shell joint A21 together with the front shell joint positioning seat 13, fasten it with screws, and insert it into the mandrel 11, then install the front shell false head 12 in place, fasten it with nuts, fasten all parts of the front shell, continue to install the rear shell joint B24 from right to left on the spacer seat 15, then install the rear shell sand core mold 16 from right to left on the mandrel 11, and fit it tightly with the spacer seat 15, install the front shell joint A21 together with the rear shell joint positioning seat 17, fasten it with screws, and insert it into the mandrel 11, then install the rear shell false head 18 in place , tighten all parts of the rear shell by nuts, and after tightening, they can be reinforced by the reinforcement component 3 to make the connection more stable, and the reinforcement component 3 cannot be installed on the outer surface of the front shell winding layer 22 and the rear shell winding layer 25. After all installations are completed, start winding the front shell winding layer 22 and the rear shell winding layer 25, and then cure them. After curing, the front and rear shells are cut apart by the cutting groove 152 provided on the spacer seat 15, and the reinforcement component 3 is disassembled before cutting, the front shell and the front shell sand core mold 14 are pulled out from the core shaft 11, and the rear shell and the rear shell sand core mold 16 are pulled out from the core shaft 11, and the two sand core molds are rinsed with water respectively. After the sand core is rinsed, the front and rear shells are taken out to complete all processes.
[0030] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of the present utility model, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.
[0031] Reference Figure 1-4 As shown, it is a preferred embodiment provided by the utility model.
[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A double-shell integrated sand core winding tool, comprising a winding tool (1), a double-shell cylinder (2) and a reinforcement component (3); It is characterized in that The winding tool (1) is compatible with the double-shell cylinder (2), the winding tool (1) is installed with the double-shell cylinder (2) through external screws and nuts, and the winding tool (1) is installed with the double-shell cylinder (2) and the reinforcement component (3).
2. A double-shell integrated sand core winding tooling according to claim 1, characterized in that: The winding tool (1) comprises a mandrel (11), a front shell false head (12) is fixedly installed on the left side of the outer surface of the mandrel (11), a front shell joint positioning seat (13) is fixedly installed on the right side of the front shell false head (12), a spacing seat (15) is fixedly installed on the left side of the center of the outer surface of the mandrel (11), a front shell sand core mold (14) is fixedly installed between the spacing seat (15) and the front shell joint positioning seat (13), a rear shell false head (18) is fixedly installed on the right side of the outer surface of the mandrel (11), a rear shell joint positioning seat (17) is fixedly installed on the left side of the rear shell false head (18), and a rear shell sand core mold (16) is fixedly installed between the rear shell joint positioning seat and the spacing seat (15).
3. The double-shell integrated sand core winding tooling according to claim 2, characterized in that: A first positioning surface (151) is arranged on the left side of the spacing seat (15), a second positioning surface (153) is arranged on the right side of the spacing seat (15), and a cutting groove (152) is provided at the center of the outer surface of the spacing seat (15).
4. The double-shell integrated sand core winding tooling according to claim 3 is characterized in that: The double shell cylinder (2) comprises a front shell joint A (21) and a front shell joint B (23) and a rear shell joint B (24) and a rear shell joint A (26); the front shell joint B (23) and the rear shell joint B (24) are fixedly installed; a front shell winding layer (22) is fixedly installed between the front shell joint A (21) and the front shell joint B (23); and a rear shell winding layer (25) is fixedly installed between the rear shell joint B (24) and the rear shell joint A (26).
5. The double-shell integrated sand core winding tooling according to claim 4, characterized in that: The reinforcement assembly (3) comprises a reinforcement ring (31), and two reinforcement rings (31) are provided, and the left and right sides of the two reinforcement rings (31) opposite to each other are fixedly connected with a connection block (32), and the connection block (32) is provided with a through hole (33) extending upward and downward, and a reinforcement bolt (34) passes through the through hole (33), and a reinforcement nut (35) is threadedly connected to the lower part of the outer surface of the reinforcement bolt (34).
6. A double-shell integrated sand core winding tooling according to claim 5, characterized in that: The opposite sides of each two connecting blocks (32) are in contact with each other, and the top of the reinforcing nut (35) is in contact with the outer surface of the connecting block (32).
7. The double-shell integrated sand core winding tooling according to claim 6, characterized in that: The two reinforcement rings (31) are both compatible with the double-shell cylinder (2).