Aviation thin-wall casting grinding device
By designing a grinding device for thin-walled aerospace castings, and utilizing casting fixtures and a rotary motor to drive the grinding wheel, the problem of rough surface of parts caused by the casting method was solved, and a highly efficient grinding effect was achieved.
Patent Information
- Application Number
- CN202520020842.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-06
- Publication Date
- 2026-03-06
- Estimated Expiration
- 2035-01-06
AI Technical Summary
In the current production of aerospace parts, the casting method results in a rough outer surface of the demolded product, which requires grinding, but there is a lack of effective grinding equipment.
A grinding device for thin-walled aerospace castings was designed, including a grinding table, a casting fixture, a rotary motor, a grinding wheel, and an elastic connector. The casting fixture clamps the part, the rotary motor drives the grinding motor to drive the grinding wheel for grinding, and a limit wheel prevents over-grinding.
It enables simple and convenient grinding operations, ensuring smooth parts surfaces and improving production efficiency and product quality.
Smart Images
Figure CN223971433U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of grinding thin-walled aerospace castings, and in particular to a grinding device for thin-walled aerospace castings. Background Technology
[0002] When producing aerospace parts, we mostly use casting. This production method is simple and can quickly make wax models according to different shapes and sizes, thereby making dumpling molds. It is very friendly to small-batch production of aerospace parts. However, the drawback is that the outer surface of the demolded product is rough, so it needs to be polished. Based on disc parts, we have designed a polishing device for thin-walled aerospace castings. Summary of the Invention
[0003] The purpose of this invention is to overcome the shortcomings of the existing technology, adapt to practical needs, and provide a grinding device for thin-walled aerospace castings.
[0004] To achieve the purpose of this utility model, the technical solution adopted by this utility model is as follows: a grinding device for thin-walled aerospace castings, including a grinding table, a casting fixing component, and a grinding wheel. The grinding table has a fixing hole in the middle, and the upper end of the casting fixing component extends out of the fixing hole. The part hole in the middle of the casting is fitted onto the casting fixing component at the fixing hole. The casting fixing component can open and close to clamp the part hole and release. A rotary motor is arranged directly above the casting fixing component. A rotating plate is connected to the rotating shaft below the rotary motor. A grinding motor bracket is connected to one end of the rotating plate. A grinding motor is arranged on the grinding motor bracket. The rotating shaft below the grinding motor passes through the grinding motor bracket and connects to the grinding wheel below.
[0005] An elastic connector is used to connect the rotating plate and the grinding motor bracket. The elastic connector includes a spring tube, a spring, and a telescopic rod. One side of the spring tube has an opening with a diameter smaller than its inner diameter. A telescopic rod is retractably mounted at this opening. A limit block is provided at the extended end of the telescopic rod, and a spring is positioned between the limit block and the bottom of the spring tube. The telescopic rod is fixedly connected to the grinding motor bracket, and the spring tube is fixedly connected to the rotating plate. During grinding, the spring is in a contracted state.
[0006] The rotary motor is mounted on a rotating support on the grinding table.
[0007] The casting fixing component includes an expansion rod, expansion petals, and an expansion cylinder. The expansion petals are arranged in a circular array on the outer ring of the expansion rod, and their roots are fixed to the fixing tube. Under normal conditions, the expansion petals can converge into a circular tubular structure with an isosceles trapezoidal cross-section. The diameter of the expansion rod is smaller than that of the tubular structure formed by splicing the expansion petals at the large diameter end and larger than that at the smallest diameter end. The expansion rod is driven to extend and retract by the expansion cylinder, thereby causing the expansion petals to expand and retract.
[0008] An annular elastic rope is fixed between the ends of the expansion valves. Under normal conditions, the expansion valves retract under the action of the elastic rope.
[0009] A clamping block is provided on the outer ring of the end of the expansion valve.
[0010] Limiting wheels are installed on the grinding motor brackets on both sides of the grinding wheel. The function of the two limiting wheels is to prevent the grinding wheel from grinding too deeply.
[0011] The beneficial effects of this utility model are as follows:
[0012] This device has a simple structure and is easy to operate. Workers push the parts onto the casting fixture for fixing, and then the grinding motor drives the rotation for grinding. Attached Figure Description
[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0014] Figure 1 This is a schematic diagram of the present invention;
[0015] Figure 2 This is a schematic diagram of a new type of casting fastener.
[0016] Figure 3 This is a schematic diagram of the inside of a Bourdon tube. Detailed Implementation
[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0018] See Figure 1-3 .
[0019] This utility model discloses a grinding device for thin-walled aerospace castings, including a grinding table 1, a casting fixing member 3, and a grinding wheel 2. The grinding table 1 has a fixing hole in the middle, and the upper end of the casting fixing member 3 extends out of the fixing hole. The part hole in the middle of the casting 4 is fitted onto the casting fixing member at the fixing hole. The casting fixing member can open and close to clamp the part hole and release. A rotary motor 5 is arranged directly above the casting fixing member. A rotating plate 6 is connected to the rotating shaft below the rotary motor. A grinding motor bracket 7 is connected to one end of the rotating plate 6. A grinding motor 8 is arranged on the grinding motor bracket. The rotating shaft below the grinding motor passes through the grinding motor bracket and connects to the grinding wheel below.
[0020] An elastic connector is used to connect the rotating plate and the grinding motor bracket. The elastic connector includes a spring tube 9, a spring 10, and a telescopic rod 11. One side of the spring tube has an opening with a diameter smaller than its inner diameter. A telescopic rod 11 is telescopically mounted at this opening. A limit block 12 is provided at the extended end of the telescopic rod, and a spring is positioned between the limit block and the bottom of the spring tube. The telescopic rod is fixedly connected to the grinding motor bracket, and the spring tube is fixedly connected to the rotating plate. During grinding, the spring is in a contracted state.
[0021] The rotary motor is mounted on the rotary support 13 on the grinding table.
[0022] The casting fixing component includes an expansion rod 14, an expansion petal 15, and an expansion cylinder 16. The expansion petals are arranged in a circular array on the outer ring of the expansion rod, and their roots are fixed to the fixing tube 17. Under normal conditions, the expansion petals can converge into a circular tubular structure with an isosceles trapezoidal cross-section. The diameter of the expansion rod is smaller than that of the tubular structure formed by splicing the expansion petals at the large diameter end and larger than that at the smallest diameter end. The expansion rod is driven to extend and retract by the expansion cylinder, thereby causing the expansion petals to expand and retract.
[0023] An annular elastic rope 18 is fixedly installed between the ends of the expansion valve. Under normal conditions, the expansion valve closes under the action of the elastic rope.
[0024] A clamping block 19 is provided on the outer ring of the end of the expansion valve.
[0025] Limiting wheels 20 are installed on the grinding motor brackets on both sides of the grinding wheel. The function of the two limiting wheels is to prevent the grinding wheel from grinding too deeply.
[0026] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. An aircraft thin-walled casting polishing apparatus, characterized by: Including polishing table (1), casting fixing piece (3) and polishing wheel (2), the polishing table (1) is provided with fixed hole in the middle, the upper end of the casting fixing piece (3) extends out of the fixed hole, the part hole in the middle of the casting (4) is sleeved on the casting fixing piece at the fixed hole, the casting fixing piece can be clamped and loosened; The upper of the casting fixing piece is provided with a rotating motor (5), the rotating shaft below the rotating motor is connected with a rotating plate (6), one end of the rotating plate (6) is connected with a polishing motor support (7), the polishing motor support is provided with a polishing motor (8), the rotating shaft below the polishing motor passes through the polishing motor support and is connected with the polishing wheel below.
2. The polishing device for thin-walled aeronautical castings according to claim 1, characterized in that: The elastic connecting piece is connected between the rotating plate and the polishing motor support, the elastic connecting piece includes spring tube (9), spring (10) and telescopic rod (11); The side of the spring tube is provided with an opening with a smaller diameter than its inner diameter, the opening can be provided with a telescopic rod (11) which can be extended and retracted, the extending end of the telescopic rod is provided with a limiting block (12), and the limiting block and the bottom of the spring tube are provided with a spring; The telescopic rod is fixedly connected with the polishing motor support, and the spring tube and the rotating plate are fixedly connected.
3. The polishing device for thin-walled aeronautical castings according to claim 1, characterized in that: The rotating motor is arranged on the rotating support (13) on the polishing table.
4. The polishing device for thin-walled aeronautical castings according to claim 1, characterized in that: The casting fixing piece includes expansion rod (14), expansion petal (15) and expansion cylinder (16), the expansion petal is arranged in a circular array on the outer circle of the expansion rod, and the root is fixed on the fixed tube (17); The expansion petal can be gathered to a circular tubular structure in normal state, and the inner cavity section is isosceles trapezoidal, the distance between the expansion rod is less than the pipe structure formed by the expansion petal, and the distance between the expansion rod is greater than the minimum hole diameter end, the expansion rod is driven to expand and contract by the expansion cylinder, so that the expansion petal expands and contracts.
5. An aircraft thin-walled casting polishing apparatus as defined in claim 4, wherein: The end of the expansion petal is fixedly provided with an annular elastic rope (18), and the expansion petal is contracted under the action of the elastic rope in normal state.
6. An aircraft thin-walled casting polishing apparatus as defined in claim 4, wherein: The outer circle of the end of the expansion petal is provided with clamping block (19).
7. The polishing device for thin-walled aeronautical castings according to claim 1, characterized in that: The polishing motor support on both sides of the polishing wheel is provided with a limiting wheel (20).