Airfoil fixing method

Abstract

The invention discloses an airfoil fixing method, relates to the technical field of airfoil machining, and aims to solve the problem that airfoils are difficult to clamp and fix in the prior art. The invention discloses an airfoil fixing method which adopts an airfoil fixing device and comprises the following steps: S1, arranging an auxiliary block on an airfoil; s2, the auxiliary block is aligned and machined; s3, the auxiliary block is connected with the fixing column; s4, the connection stability of the fixing columns and the auxiliary blocks is checked; s5, machining an airfoil; and S6, separating the airfoil from the airfoil fixing device. According to the airfoil fixing method, the airfoil fixing stability can be improved, and the risk that the airfoil is clamped by a clamp or deforms in the airfoil clamping process is effectively reduced.

Description

Technical Field

[0001] The invention relates to the technical field of wing surface processing, and in particular to a wing surface fixing method. Background Art

[0002] In traditional manufacturing methods, the complex geometry of the airfoil may be limited by mold manufacturing or processing technology. However, 3D printing technology can accurately manufacture airfoils with complex internal structures and external shapes based on computer-aided design models.

[0003] The wing surface has the characteristics of thin wall and easy changeability, which makes the parts always face the problem of difficult clamping during the manufacturing process. At present, the clamping method of tire-type tooling or reserved chuck is commonly used.

[0004] In the prior art, the method of using tire-type tooling has the problem of inconsistent contours leading to skin damage and poor stability, and the method of using reserved chucks easily leads to discontinuous processing and difficulty in stably clamping the wing surface. Summary of the invention

[0005] In view of the above analysis, the present invention aims to provide a method for fixing an airfoil, so as to solve the problem of difficulty in clamping and fixing the airfoil in the prior art.

[0006] The purpose of the present invention is mainly achieved through the following technical solutions:

[0007] The present invention discloses a wing surface fixing method, which adopts a wing surface fixing device, wherein the wing surface fixing device comprises an auxiliary block and a fixing column, and comprises the following steps:

[0008] S1: Arrange auxiliary blocks on the wing surface;

[0009] S2: Align and process the auxiliary block;

[0010] S3: Connect the auxiliary block to the fixed column.

[0011] Furthermore, the method further comprises the following steps:

[0012] S4: Check the stability of the connection between the fixing column and the auxiliary block.

[0013] Furthermore, the method further comprises the following steps:

[0014] S4: Check the stability of the connection between the fixing column and the auxiliary block.

[0015] Furthermore, the method further comprises the following steps:

[0016] S5: machining wing surface;

[0017] S6: Separate the airfoil from the airfoil fixture.

[0018] Furthermore, the wing surface fixing device comprises an auxiliary block, and a bonding surface is arranged on the auxiliary block.

[0019] Furthermore, in step S1, a plurality of auxiliary blocks are arranged on the airfoil according to the shape of the airfoil, and the auxiliary blocks are bonded to the airfoil via bonding surfaces.

[0020] Furthermore, a positioning portion is provided on the other surface of the auxiliary block bonded to the wing surface.

[0021] Furthermore, step S2 specifically includes the following steps:

[0022] S21: Align the auxiliary block;

[0023] S22: Processing positioning part.

[0024] Furthermore, the fixing column includes a connecting end, and the connecting end is used to connect to the positioning part.

[0025] Furthermore, the positioning portion is connected to the connecting end via bolts.

[0026] Furthermore, a sol groove is provided on the end surface where the auxiliary block is bonded to the wing surface, and the sol groove is used for squeezing the sol agent.

[0027] Further, step S6 specifically includes:

[0028] S61: squeezing in sol;

[0029] S62: separation wing;

[0030] S63: Recover the auxiliary block and the fixed column.

[0031] Furthermore, a connecting head is arranged on the connecting end, and a positioning hole is processed on the positioning portion, and the connecting head can enter the positioning hole.

[0032] Furthermore, an air intake port and a sealing strip are provided at the connection end. The air intake port is connected to the negative pressure adsorption device. The sealing strip is used to maintain a sealed connection between the positioning portion and the connection end.

[0033] Furthermore, the fixing column also includes a clamping assembly, which is arranged in the connecting end. The clamping assembly includes a connecting seat and a clamping block. The connecting head passes through the connecting seat, and the connecting seat cooperates with the positioning part so that the positioning part is connected to the connecting seat through the connecting head.

[0034] Furthermore, the clamping assembly also includes a rotating handle, a rotating ratchet and a rotating rod, the clamping block includes a chuck, a first spring and a touch rod, the chuck is connected to the connecting end through the first spring, one end of the touch rod is connected to the chuck, and the other end is in contact with the rotating ratchet, the rotating ratchet is connected to the rotating rod, and the rotating handle is connected to the rotating rod.

[0035] Furthermore, the fixed column also includes a fixed test component, which is arranged in the connecting end and is separated from the air intake port. The fixed test component includes a detection block, a power supply, a signal light, a circuit housing, a wire and a contact switch. There are multiple detection blocks, which are arranged on the connecting end and protrude from the connecting end. The connecting end is connected to the circuit housing through a spring, the wire and the contact switch are arranged in the circuit housing, and the power supply forms a series circuit with the signal light through the wire and the contact switch.

[0036] Furthermore, a touch rod is provided on the detection block, and an entry hole is provided on the circuit housing. The touch rod enters the circuit housing through the entry hole. The position of the contact switch cooperates with the touch rod. When the detection block is pressed and located in the same plane as the connection end, the touch rod is pressed and contacts the contact switch.

[0037] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0038] (1) The wing surface fixing method provided by the present invention arranges auxiliary blocks on the wing surface so that the auxiliary blocks are bonded to the wing surface, and then the wing surface is clamped by connecting the auxiliary blocks to the fixing columns, so that the wing surface can be processed on the processing platform of the processing machine. The auxiliary blocks are bonded to the wing surface to replace the clamping of the wing surface by the traditional clamps, and the bonding position of the auxiliary blocks can be arranged according to the shape of the wing surface, so that the wing surface fixing device can fix the wing surface according to the shape of the wing surface, thereby increasing the stability and adaptability of the wing surface fixing device to the wing surface; the clamping is replaced by bonding to prevent the wing surface from being deformed or damaged by clamping, and the protective effect of the wing surface during the processing can be improved; by arranging a sol tank on the auxiliary block, the sol agent can be better in contact with the bonding material through the sol tank, thereby achieving a better sol effect. The wing surface fixing method of the present invention can improve the stability of the wing surface fixation and effectively reduce the risk of the wing surface being clamped or deformed by the clamp during the clamping process.

[0039] (2) The wing surface fixing method provided by the present invention, in step S3, connecting the auxiliary block through the clamping assembly can improve the connection efficiency between the auxiliary block and the fixed column and the service life of the fixed column and the auxiliary block. By moving the rotating handle, the clamping edge of the chuck can be fixed, thereby fixing the connection between the auxiliary block and the fixed column, avoiding damage to the auxiliary block and the fixed column by disassembling the bolts, and preventing phenomena such as thread slippage from affecting the stability of the connection between the auxiliary block and the fixed column. When connecting the auxiliary block through the clamping assembly, it is only necessary to adjust the rotating handle to adjust the clamping degree of the chuck and the clamping block, so that it is convenient to connect or separate the fixed part and the connecting end. The operation is simple and can greatly save the time required to connect the fixed part and the connecting end compared to the bolt connection, effectively saving manpower, improving operating efficiency, saving working hours, and being easy to operate. It can shorten the processing time of the wing surface and improve the continuity and fluency of the processing.

[0040] (3) The wing surface fixing method provided by the present invention can improve the fixing effect of the wing surface by checking the stability of the connection between the fixing column and the auxiliary block in step S4, improve the safety and stability of the fixed wing surface of the wing surface fixing device, and reduce the risk of unstable wing surface fixing. When the auxiliary block is connected to the fixing column by negative pressure adsorption, the stability of the connection between the auxiliary block and the fixing column can be automatically monitored by setting a fixed test component, and an alarm can be given to the staff in time. When the positioning part is connected to the connection end, the positioning part squeezes the detection block, compresses the spring, and at the same time makes the touch rod contact the contact switch, so that the circuit is turned on, so that the signal light is illuminated; when the negative pressure suction force on the positioning part is insufficient, resulting in a gap between the connection between the positioning part and the connection end, the detection block at the gap protrudes from the connection end due to the spring reset effect, drives the touch rod to leave the contact switch, the circuit is in a broken circuit, the signal light goes out, and reminds the staff to check the stability of the connection between the positioning part and the connection end, thereby realizing automatic monitoring of the stability of the connection between the auxiliary block and the fixing column and timely reminding of abnormal situations, without manual inspection one by one, easy to use, and can effectively increase the safety and stability of wing surface fixing.

[0041] (4) The wing surface fixing method provided by the present invention can improve the utilization rate of the wing surface fixing device by recycling the auxiliary block and the fixing column in step S6, saving costs and materials. After the processing of the wing surface is completed, the sol agent is squeezed into the sol tank, so that the sol agent penetrates into the bonding surface through the sol tank and dissolves the adhesive material on the bonding surface, thereby separating the wing surface from the auxiliary block. After the auxiliary block is separated from the fixing column, the auxiliary block and the fixing column can be recycled and stored for reuse, thereby increasing the number of recycling times and saving the cost of use. When the positioning part is separated from the connecting end, the detection block is driven by the spring reset action to drive the touch rod to leave the contact switch, so that the circuit is in a disconnected state and the signal light is turned off, thereby saving energy, improving the safety of the wing surface fixing device, and improving the economy and practicality of the wing surface fixing method.

[0042] In the present invention, the above-mentioned technical solutions can also be combined with each other to achieve more preferred combination solutions. Other features and advantages of the present invention will be described in the subsequent description, and some advantages can become obvious from the description, or can be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained through the contents particularly pointed out in the embodiments of the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] The accompanying drawings are only for the purpose of illustrating the particular invention and are not to be considered as limiting the invention. The same reference symbols denote the same components throughout the accompanying drawings.

[0044] Figure 1 It is a schematic diagram of the process of the airfoil fixing method of the present invention;

[0045] Figure 2 It is a schematic diagram of the structure of the connection between the auxiliary block and the wing surface of the present invention;

[0046] Figure 3 It is a schematic diagram of the overall structure of the wing surface fixing device of the present invention;

[0047] Figure 4 This is one of the structural schematic diagrams of the fixing column of the present invention;

[0048] Figure 5 This is the second structural schematic diagram of the fixing column of the present invention;

[0049] Figure 6 It is a structural schematic diagram of the clamping assembly of the present invention;

[0050] Figure 7 It is a structural schematic diagram of the auxiliary block of the present invention;

[0051] Figure 8 is a schematic structural diagram of a connection end of the present invention;

[0052] Fig. 9 It is a schematic diagram of the internal structure of the fixed test assembly of the present invention.

[0053] Reference numerals:

[0054] 1-auxiliary block; 11-positioning part; 111-clamping edge; 12-sol tank; 2-fixed column; 21-connecting end; 211-connecting head; 212-air inlet; 213-sealing strip; 23-clamping assembly; 231-connecting seat; 232-clamping block; 2321-clamping head; 2322-first spring; 2323-touch rod; 233-rotating handle; 234-rotating ratchet; 235-rotating rod; 24-fixed test assembly; 241-detection block; 2411-touch rod; 242-power supply; 243-signal lamp; 244-circuit housing; 2441-entry hole; 245-wire; 246-contact switch; 3-wing surface. DETAILED DESCRIPTION

[0055] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the present invention and are used to explain the principles of the present invention together with the present invention.

[0056] Example 1

[0057] This embodiment provides a method for fixing an airfoil, using an airfoil fixing device such as Figure 1 As shown, the following steps are included:

[0058] S1: Arrange auxiliary block 1 on airfoil 3;

[0059] S2: Align and process the auxiliary block 1;

[0060] S3: Connect the auxiliary block to the fixed column;

[0061] S4: Check the stability of the connection between the fixed column 2 and the auxiliary block 1;

[0062] S5: Processing wing surface 3;

[0063] S6: Separate the airfoil 3 from the airfoil fixing device.

[0064] like Figure 2 As shown, the wing surface fixing device includes an auxiliary block 1, and a bonding surface is arranged on the auxiliary block 1.

[0065] In step S1 , specifically, a plurality of auxiliary blocks 1 are arranged on the airfoil 3 according to the shape of the airfoil 3 , and the auxiliary blocks 1 are bonded to the airfoil 3 via bonding surfaces.

[0066] Furthermore, if Figure 3 As shown, the wing surface fixing device also includes a fixing column 2. The auxiliary block 1 is provided with a positioning portion 11 on the surface opposite to the bonding surface. The fixing column 2 includes a connecting end 21 and a support 22. The connecting end 21 is connected to the support 22, and the connecting end 21 is used to connect to the positioning portion 11.

[0067] Furthermore, step S2 specifically includes the following steps:

[0068] S21: Align the auxiliary block 1;

[0069] S22: Processing the positioning portion 11.

[0070] In step S21 , specifically, the other side where the auxiliary block 1 is bonded to the airfoil 3 is aligned so that the other side where the auxiliary block 1 is bonded to the airfoil 3 is coplanar.

[0071] In step S22 , specifically, the positioning portion 11 is processed so that the positioning portion 11 can be connected to the connecting end 21 .

[0072] Exemplarily, the positioning portion 11 is connected to the connecting end 21 by bolts or screws, and a threaded hole is processed on the positioning portion 11 .

[0073] For example, Figure 4 As shown, the positioning part 11 is connected to the connecting end 21 by negative pressure adsorption, a connecting head 211 is arranged on the connecting end 21, and a positioning hole is processed on the positioning part 11 so that the connecting head 211 enters the positioning hole to position the positioning part 11 and increase the stability of the connection.

[0074] In step S3 , specifically, the fixing column 2 is connected to the auxiliary block 1 , so that the airfoil 3 is fixed on the fixing column 2 through the auxiliary block 1 .

[0075] Exemplarily, the positioning portion 11 is connected to the connecting end 21 by bolts.

[0076] For example, Figure 4 As shown, an air inlet 212 and a sealing strip 213 are also provided on the connection end 21. The air inlet 212 is connected to the negative pressure adsorption device, and the sealing strip 213 is used to keep the positioning part 11 and the connection end 21 sealed. When the positioning part 11 is connected to the connection end 21, the sealing strip 213 is used to seal, and the air between the positioning part 11 and the connection end 21 is sucked out through the air inlet 212, so that the positioning part 11 and the connection end 21 are connected by negative pressure adsorption.

[0077] For example, Figure 5-6 As shown, the fixing column 2 also includes a clamping assembly 23, which is arranged in the connecting end 21. The clamping assembly 23 includes a connecting seat 231 and a clamping block 232. The connecting head 211 passes through the connecting seat 231. The connecting seat 231 cooperates with the positioning portion 11, so that the positioning portion 11 is positioned through the connecting head 211 and connected to the connecting seat 231. Figure 7 As shown, a clamping edge 111 is provided on the positioning portion 11 , and the clamping block 232 can fix the clamping edge 111 , thereby tightening the connection between the positioning portion 11 and the connecting seat 231 .

[0078] Furthermore, the clamping assembly 23 also includes a rotating handle 233, a rotating ratchet 234 and a rotating rod 235. The clamping block 232 includes a clamp 2321, a first spring 2322 and a touch rod 2323. The clamp 2321 is connected to the connecting end 21 through the first spring 2322. One end of the touch rod 2323 is connected to the clamp 2321 and the other end is in contact with the rotating ratchet 234. The rotating ratchet 234 is connected to the rotating rod 235. The rotating handle 233 is connected to the rotating ratchet 234. The rod 235 is connected, and moving the rotating handle 233 can drive the rotating rod 235 to rotate. A rotating handle groove 214 is set on the connecting end 21. The rotating handle 233 extends from the rotating handle groove 214 and can move along the rotating handle groove 214, so that the rotating ratchet 234 rotates. The rotating ratchet 234 rotates and pushes the contact rod 2323 to move, thereby driving the clamp 2321 to move toward or away from the connecting seat 231, so that the clamp 2321 fixes the clamping edge 111.

[0079] In step S4, specifically, the stability of the connection between the fixing column 2 and the auxiliary block 1 is checked, and the unstable connection position is reconnected.

[0080] Exemplarily, when the connection end 21 and the positioning portion 11 are fixed by bolts, the stability of the bolt connection is checked and the bolts are adjusted.

[0081] Exemplarily, when the connection end 21 is connected to the positioning portion 11 through the clamping assembly 23 , the stability of the connection between the connection end 21 and the positioning portion 11 is checked, and the fixation of the clamping head 2321 to the clamping edge 111 is adjusted by rotating the handle 233 .

[0082] For example, Figure 8-Figure 9 As shown, the fixing column 2 also includes a fixing test component 24, which is arranged in the connection end 21 and is used to test the stability of the connection between the connection end 21 and the positioning part 11 through negative pressure adsorption. When negative pressure adsorption is used for fixation, the fixing test component 24 is separated from the suction port 212 to prevent the fixing test component 24 from being affected by the suction of the negative pressure adsorption device and affecting the detection accuracy.

[0083] Furthermore, the fixed test component 24 includes a detection block 241, a power supply 242, a signal light 243, a circuit housing 244, a wire 245 and a contact switch 246. The detection block 241 is provided in plurality. The detection block 241 is provided on the connection end 21 and protrudes from the connection end 21. The connection end 21 is connected to the circuit housing 244 through a spring. The wire 245 and the contact switch 246 are provided in the circuit housing 244. The power supply 242 forms a series circuit with the signal light 243 through the wire 245 and the contact switch 246. Exemplarily, the power supply 242 is a battery. When the contact switch 246 is not touched, the circuit is in an open circuit and the signal light 243 does not emit light. When the contact switch 246 is touched, the circuit is in a closed circuit and the signal light 243 emits light. A touch rod 2411 is provided on the detection block 241, and an entry hole 2441 is provided on the circuit housing 244. The touch rod 2411 enters the circuit housing 244 through the entry hole 2441. The position of the contact switch 246 matches the touch rod 2411. When the detection block 241 is pressed and is located in the same plane as the connection end 21, the touch rod 2411 is pressed and contacts the contact switch 246, so that the circuit is turned on, thereby making the signal light 243 light up.

[0084] It can be understood that when the positioning portion 11 is connected to the connecting end 21, the positioning portion 11 squeezes the detection block 241, compresses the spring, and at the same time makes the touch rod 2411 contact the contact switch 246, so that the circuit is turned on, thereby making the signal light 243 light up; when the negative pressure suction force on the positioning portion 11 is insufficient and there is a gap in the connection between the positioning portion 11 and the connecting end 21, the detection block 241 at the gap protrudes from the connecting end 21 due to the spring reset action, driving the touch rod 2411 to leave the contact switch 246, the circuit is open, and the signal light 243 goes out, reminding the staff to check the stability of the connection between the positioning portion 11 and the connecting end 21.

[0085] Preferably, the detection blocks 241 are evenly arranged at the corners of the connection end 21, thereby improving the accuracy of monitoring the negative pressure adsorption effect.

[0086] In step S5 , specifically, after the airfoil 3 is connected to the fixing column 2 through the auxiliary block 1 , the fixing column 2 is placed on a processing platform of a processing machine to process the airfoil 3 .

[0087] Furthermore, if Figure 3 As shown, a sol groove 12 is provided on the end surface of the auxiliary block 1 bonded to the airfoil, and the sol groove 12 is used for squeezing the sol agent.

[0088] Further, step S6 specifically includes:

[0089] S61: squeezing in sol;

[0090] S62: separation wing 3;

[0091] S63: Recover the auxiliary block 1 and the fixed column 2.

[0092] In step S61, specifically, after the processing of the airfoil 3 is completed, the sol agent is squeezed into the sol tank 12, so that the sol agent penetrates into the bonding surface through the sol tank 12 to dissolve the adhesive material on the bonding surface.

[0093] In step S62, specifically, after the cementing material on the surface of the auxiliary block 1 is dissolved, the airfoil 3 is lifted by the lifting device to separate the airfoil 3 from the auxiliary block 1, and the airfoil 3 is transferred to the next process by the lifting device.

[0094] In step S63 , specifically, the connection end 21 is separated from the positioning portion 11 , and the auxiliary block 1 and the fixing column 2 are recovered for reuse.

[0095] Exemplarily, when the connection end 21 is connected to the positioning portion 11 via bolts, the bolts are removed to separate the connection end 21 from the positioning portion 11 .

[0096] Exemplarily, when the connection end 21 is connected to the positioning portion 11 through the clamping assembly 23, the chuck 2321 is adjusted by rotating the handle 233 so that the chuck 2321 leaves the clamping edge 111 and the positioning portion 11 is removed from the connection seat 231, thereby separating the connection end 21 from the positioning portion 11.

[0097] Exemplarily, when the connecting end 21 is connected to the positioning part 11 by negative pressure adsorption, the negative pressure adsorption device is turned off to separate the positioning part 11 from the connecting end 21, and the detection block 241 is driven by the spring return action to drive the touch rod 2411 to leave the contact switch 246, so that the circuit is disconnected and the signal light 243 is turned off, thereby saving electric energy and improving the safety of the wing surface fixing device.

[0098] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by any technician familiar with the technical field within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention.

Claims

1. A method for fixing an airfoil, characterized in that: A wing surface fixing device is used, the wing surface fixing device includes an auxiliary block and a fixing column, and includes the following steps: S1: Arrange auxiliary blocks on the wing surface; S2: Align and process the auxiliary block; S3: Connect the auxiliary block to the fixed column.

2. The airfoil fixing method according to claim 1, characterized in that: The following steps are also included: S4: Check the stability of the connection between the fixing column and the auxiliary block.

3. The airfoil fixing method according to claim 1 or 2, characterized in that: The following steps are also included: S5: machining wing surface; S6: Separate the airfoil from the airfoil fixture.

4. The airfoil fixing method according to claim 1, characterized in that: The auxiliary block is provided with a bonding surface.

5. The airfoil fixing method according to claim 4, characterized in that: In step S1 , a plurality of auxiliary blocks are arranged on the airfoil according to the shape of the airfoil, and the auxiliary blocks are bonded to the airfoil via bonding surfaces.

6. The airfoil fixing method according to claim 5, characterized in that: A positioning portion is also provided on the auxiliary block, and the positioning portion is provided on a surface opposite to the bonding surface.

7. The airfoil fixing method according to claim 6, characterized in that: Step S2 specifically includes the following steps: S21: Align the auxiliary block; S22: Processing positioning part.

8. The airfoil fixing method according to claim 7, characterized in that: The fixing column includes a connecting end, and the connecting end is used for connecting with the positioning part.

9. The airfoil fixing method according to claim 8, characterized in that: The positioning part is connected to the connecting end by bolts.

10. The airfoil fixing method according to any one of claims 5 to 9, characterized in that: A sol groove is arranged on the end surface where the auxiliary block is bonded to the wing surface, and the sol groove is used for squeezing the sol agent.

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