Aviation composite material test piece positioning tool

Abstract

The utility model discloses an aviation composite material test piece positioning tool, and relates to the technical field of composite material test piece production, the aviation composite material test piece positioning tool comprises a fixed template and a movable template which are matched with each other, and a pressing space used for pressing a clamping plate of a test piece is formed between the fixed template and the movable template; the positioning assembly is used for fixing the test piece in the pressing space; and the cleaning assembly is used for cleaning glue seeping from the junction between the clamping plate and the pulling and pressing piece after the clamping plate is pressed. According to the utility model, pressure is applied to the movable template, so that the clamping plates bond, pre-press and fix the upper and lower surfaces of the two ends of the tension and compression piece, bubbles in a glue layer are extruded out, and the bonding quality is ensured; the cleaning piece is arranged and can move along the junction between the clamping plates and the tension and compression piece under the driving of the driving part; therefore, glue seeping from the junction is cleaned, the glue of the test piece is prevented from adhering to the tool, and the test piece can be conveniently detached from the tool in the later period.

Description

Technical Field

[0001] The utility model relates to the technical field of composite material test piece production, in particular to a positioning tooling for aviation composite material test pieces. Background Technique

[0002] Aviation composite materials are mainly applied to structures that bear large loads and have extremely high requirements for their safety. To ensure the reliability of the structure, it is necessary to characterize it with the performance of composite material laminates manufactured under specific process conditions. As Figure 5 shown, in the prior art, in order to conduct tensile or compressive tests on composite material laminates, splints are usually manually bonded to both ends of the composite material laminate (tensile / compressive piece), and then placed in equipment for hot pressing to quickly dry the glue.

[0003] The Chinese utility model patent with the authorization announcement number CN210533824U discloses a limiting and pressing tooling for composite material test pieces. This solution uses the splint placement grooves on the fixed template and the movable template to limit both sides of the splint, and uses the first stop block and the second stop block to limit one end of the splint. After applying glue to the splint, the tensile / compressive piece is placed on the splint on the fixed template, and then the movable template is placed on the fixed template to achieve the bonding of the upper and lower surfaces of both ends of the tensile / compressive piece by the splint, and the movable template is used for pre-pressing and squeezing out air bubbles. However, the above technical solution still has defects: since one side of the splint fits with the placement grooves of the fixed template and the movable template, when the movable template and the fixed template approach each other, it will form a pressure on the glue between the splint and the tensile / compressive piece, and part of the glue will seep out from the gap between the splint and the tensile / compressive piece after being pressured. The seeping glue is easy to drip and adhere to the side wall of the splint placement groove, resulting in the adhesion of the splint to the fixed template and the movable template, making it difficult to remove the splint from the placement groove later. Content of the Utility Model

[0004] The purpose of the utility model is to provide a positioning tooling for aviation composite material test pieces to solve the technical problem that when the glue of the test piece is extruded by the production tooling of composite material test pieces in the current market, the glue is easy to seep out and adhere to the tooling.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a positioning tooling for aviation composite material test pieces, including:

[0006] A fixed template and a movable template that cooperate with each other, and a pressing space for pressing the splint of the test piece is formed between the fixed template and the movable template;

[0007] A positioning component for fixing the test piece in the pressing space;

[0008] A cleaning component for cleaning the glue oozing from the junction between the splint and the tension and compression member after the splint is pressed. The cleaning component includes: a cleaning member and a driving member for driving the cleaning member to move along the junction.

[0009] As a preferred technical solution of the present utility model, the test piece positioning tooling further includes: a positioning pin with one end disposed at the lower end of the fixed template, and the positioning pin is matched with a positioning groove opened at the upper end of the fixed template.

[0010] As a preferred technical solution of the present utility model, both the fixed template and the moving template are provided with placing grooves on the side where they are mutually attached, and the placing grooves are used for placing the splint.

[0011] As a preferred technical solution of the present utility model, the positioning component includes:

[0012] A positioning block movably disposed in the placing groove, and a clamping area for the splint is formed between the positioning block and the placing groove;

[0013] An adjusting member for driving the positioning block to move along the placing groove, so that the positioning block forms a pressing force on the splint.

[0014] As a preferred technical solution of the present utility model, the adjusting member includes:

[0015] A threaded rod with one end rotatably connected to the positioning block, and the threaded rod is matched with a threaded groove opened on the surface of the fixed template;

[0016] A guide rod with one end connected to the positioning block, and the guide rod is slidably matched with a guide groove opened on the surface of the fixed template.

[0017] As a preferred technical solution of the present utility model, the cleaning member is a sponge block, and the sponge block is disposed in the inner cavities of the fixed template and the moving template.

[0018] As a preferred technical solution of the present utility model, the driving member includes:

[0019] A roller rotatably disposed in the inner cavity, and the rollers are arranged in pairs;

[0020] A belt sleeved on the surface of the roller, and the sponge block is disposed on the surface of the belt;

[0021] A power structure for driving the roller to rotate.

[0022] As a preferred technical solution of the present utility model, the power structure includes:

[0023] A first bevel gear connected to the roller;

[0024] A motor disposed on the fixed template and the moving template;

[0025] A second bevel gear that mates with the first bevel gear, and the second bevel gear is connected to the output shaft of the motor.

[0026] As a preferred technical solution of the present utility model, both the fixed template and the movable template are provided with protective shells for covering the motor, the first bevel gear, and the second bevel gear.

[0027] As a preferred technical solution of the present utility model, a base is provided at the lower end of the fixed template, and mounting holes are provided on the surface of the base.

[0028] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0029] By applying pressure to the movable template, the clamping plate bonds and pre-presses the upper and lower surfaces at both ends of the tension-compression member, squeezing out the air bubbles in the glue layer to ensure the bonding quality. Since a cleaning member is provided, the cleaning member can move along the junction between the clamping plate and the tension-compression member under the drive of the driving member, thereby cleaning the glue oozing out at the junction, preventing the glue of the test piece from sticking to the tooling, and facilitating the disassembly of the test piece from the tooling in the later stage. Description of the Drawings

[0030] Figure 1 is an external three-dimensional structural schematic diagram of the present utility model;

[0031] Figure 2 is a partially-sectioned three-dimensional structural schematic diagram of the fixed template and the movable template of the present utility model;

[0032] Figure 3 is of the present utility model Figure 2 is an enlarged structural schematic diagram at position A in;

[0033] Figure 4 is a main-section structural schematic diagram of the fixed template and the movable template of the present utility model;

[0034] Figure 5 is a three-dimensional structural schematic diagram of the clamping plate and the tension-compression member of the present utility model.

[0035] In the figure: 1, fixed template; 2, movable template; 3, positioning pin; 4, positioning groove; 5, placement groove; 6, clamping plate; 7, glue layer; 8, tension-compression member; 9, positioning block; 10, threaded rod; 11, threaded groove; 12, guide rod; 13, guide groove; 14, inner cavity; 15, roller; 16, belt; 17, sponge block; 18, first bevel gear; 19, motor; 20, second bevel gear; 21, protective shell; 22, base; 23, mounting hole. Detailed Embodiments

[0036] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0037] Please refer to Figures 1-5 , the present utility model provides a technical solution: an aviation composite material test piece positioning tooling, including: a fixed template 1 and a movable template 2 that cooperate with each other, and a pressing space for pressing the clamping plate 6 of the test piece is formed between the fixed template 1 and the movable template 2; a positioning component for fixing the test piece in the pressing space; a cleaning component for cleaning the glue oozing from the junction between the clamping plate 6 and the tension-compression member 8 after the clamping plate 6 is pressed, and the cleaning component includes: a cleaning member and a driving member for driving the cleaning member to move along the junction.

[0038] Adopting the above technical solution can prevent the glue oozing from the clamping plate 6 after being pressed from adhering to the fixed template 1 and the movable template 2. When in use, glue is applied to the clamping plate 6 and then connected to both ends of the tension-compression member 8. The clamping plate 6 is placed in the pressing space on the fixed template 1, and then the movable template 2 is placed on the fixed template 1. A downward pressure is applied to the movable template 2, so that the clamping plate 6 bonds the upper and lower surfaces of both ends of the tension-compression member 8, and the movable template 2 is used for pre-pressing and solidifying to squeeze out the bubbles in the glue layer 7 to ensure the bonding quality. Since there is a cleaning member, the cleaning member can be driven by the driving member to move along the junction between the clamping plate 6 and the tension-compression member 8, so as to clean the glue oozing from the junction, prevent the glue of the test piece from sticking to the tooling, which is beneficial to the subsequent disassembly of the test piece from the tooling, and then they are put into a hot pressing device together to achieve solidification under a certain temperature adjustment.

[0039] As Figure 1 and Figure 2 shown, in this embodiment, the test piece positioning tooling further includes: a positioning pin 3 with one end provided at the lower end of the fixed template 1, and the positioning pin 3 is matched with a positioning groove 4 opened at the upper end of the fixed template 1. Preferably, three positioning pins 3 are provided, and correspondingly, three positioning grooves 4 are also opened.

[0040] Adopting the above technical solution can guide the movement of the movable template 2. Since there are a positioning pin 3 and a positioning groove 4, when a pressure is applied to the movable template 2, the positioning pin 3 and the positioning groove 4 can cooperate with each other to limit the movement direction of the movable template 2 and prevent the movable template 2 from shaking or skewing.

[0041] As Figure 2 shown, in this embodiment, both the fixed template 1 and the movable template 2 are provided with placing grooves 5 on the side where they are mutually attached, and the placing grooves 5 are used for placing the clamping plate 6.

[0042] Adopting the above technical solution can conveniently place the clamping plate 6 of the test piece in the placement groove 5 of the fixed template 1. It should be noted that the maximum depth of the placement groove 5 should not exceed the height of the clamping plate 6, otherwise, pressure cannot be applied to the clamping plate 6.

[0043] As Figure 2 and Figure 3 shown, in this embodiment, the positioning component includes: a positioning block 9 movably arranged in the placement groove 5, and a clamping area for the clamping plate 6 is formed between the positioning block 9 and the placement groove 5; an adjusting component for driving the positioning block 9 to move along the placement groove 5 so that the positioning block 9 forms a pressing force on the clamping plate 6; specifically, the adjusting component includes: a threaded rod 10 rotatably connected to one end of the positioning block 9, and the threaded rod 10 is matched with a threaded groove 11 opened on the surface of the fixed template 1; a guide rod 12 connected to one end of the positioning block 9, and the guide rod 12 is slidably matched with a guide groove 13 opened on the surface of the fixed template 1;

[0044] Adopting the above technical solution can fix the clamping plate 6 to prevent it from moving when pressure is applied to the clamping plate 6. During use, by rotating the threaded rod 10, the positioning block 9 can be driven to move along the placement groove 5 until the positioning block 9 fits with the clamping plate 6, thereby fixing the clamping plate 6. Since the guide rod 12 and the guide groove 13 are provided, the movement direction of the clamping plate 6 can be restricted, avoiding the synchronous rotation of the positioning block 9 when the threaded rod 10 rotates, and improving the structural stability.

[0045] As Figure 2 shown, in this embodiment, the cleaning part is a sponge block 17, and the sponge block 17 is arranged in the inner cavity 14 opened on the fixed template 1 and the movable template 2;

[0046] Adopting the above technical solution can utilize the adsorption property of the sponge block 17 to well adsorb and wipe the glue overflowing when pressure is applied to the clamping plate 6, preventing it from sticking to the tooling.

[0047] As Figure 2 shown, in this embodiment, the driving component includes: a roller 15 rotatably arranged in the inner cavity 14, and the rollers 15 are arranged in pairs; a belt 16 sleeved on the surface of the roller 15, and the sponge block 17 is arranged on the surface of the belt 16; a power structure for driving the roller 15 to rotate; specifically, the power structure includes: a first bevel gear 18 connected to the roller 15; a motor 19 arranged on the fixed template 1 and the movable template 2; a second bevel gear 20 matched with the first bevel gear 18, and the second bevel gear 20 is connected to the output shaft of the motor 19;

[0048] Adopting the above technical solution can automatically control the sponge block 17 to adsorb and wipe the glue overflowing when pressing the clamping plate 6. During use, start the motor 19 to drive the second bevel gear 20 to rotate. The second bevel gear 20 drives the first bevel gear 18 to rotate. The first bevel gear 18 drives the roller 15 to rotate, thereby driving the belt 16 to rotate. The belt 16 drives the sponge block 17 to reciprocally wipe the surface of the clamping plate 6 and adsorb the overflowing glue.

[0049] Furthermore, as Figure 1 and Figure 2 shown, in this embodiment, both the fixed template 1 and the movable template 2 are provided with a protective shell 21 for covering the motor 19, the first bevel gear 18, and the second bevel gear 20;

[0050] Adopting the above technical solution can protect the motor 19, the first bevel gear 18, and the second bevel gear 20 from being damaged.

[0051] As Figure 1 and Figure 2 shown, in this embodiment, a base 22 is provided at the lower end of the fixed template 1, and mounting holes 23 are formed on the surface of the base 22;

[0052] Adopting the above technical solution can facilitate the fixing of the fixed template 1 on the workbench, prevent the fixed template 1 from moving and shifting under force, and improve the processing accuracy.

[0053] Working principle: During use, first apply glue on the clamping plate 6 and connect it to both ends of the tension-compression member 8. Place the clamping plate 6 of the test piece in the placement groove 5 of the fixed template 1, and then place the movable template 2 on the fixed template 1 and apply a downward pressure on the movable template 2. Since there are positioning pins 3 and positioning grooves 4, when applying pressure on the movable template 2, the positioning pins 3 and the positioning grooves 4 can cooperate with each other to limit the movement direction of the movable template 2 and prevent the movable template 2 from shaking or skewing, so that the clamping plate 6 bonds the upper and lower surfaces of both ends of the tension-compression member 8, and uses the movable template 2 for pre-pressing and solidifying to squeeze out the bubbles in the glue layer 7 to ensure the bonding quality. Since there is a sponge block 17, the cleaning member can move along the junction between the clamping plate 6 and the tension-compression member 8 driven by the driving component, thereby cleaning the glue oozing from the junction. Specifically, during use, start the motor 19 to drive the second bevel gear 20 to rotate. The second bevel gear 20 drives the first bevel gear 18 to rotate. The first bevel gear 18 drives the roller 15 to rotate, thereby driving the belt 16 to rotate. The belt 16 drives the sponge block 17 to reciprocally wipe the surface of the clamping plate 6 and adsorb the overflowing glue, preventing the glue of the test piece from sticking to the tooling, which is beneficial for later disassembling the test piece from the tooling. Then, put them into the hot pressing equipment together to achieve solidification under a certain temperature adjustment.

[0054] Thus, a series of operations are completed. The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0055] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and that the present utility model can be implemented in other specific forms without departing from the spirit or essential characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

Claims

1. An aviation composite material test piece positioning tooling, comprising: A fixed template (1) and a movable template (2) that cooperate with each other, and a pressing space for pressing the splint (6) of the test piece is formed between the fixed template (1) and the movable template (2); A positioning assembly for fixing the test piece in the pressing space; Characterized in that the test piece positioning tooling further comprises: a cleaning assembly for cleaning the glue that oozes out from the junction between the splint (6) and the tension and compression member (8) after the splint (6) is pressed, and the cleaning assembly comprises: a cleaning member and a driving member for driving the cleaning member to move along the junction.

2. The positioning tooling for the aviation composite material test piece according to claim 1, wherein, The test piece positioning tooling further comprises: a positioning pin (3) with one end provided at the lower end of the fixed template (1), and the positioning pin (3) is matched with a positioning groove (4) opened at the upper end of the fixed template (1).

3. The positioning tooling for the aviation composite material test piece according to claim 1, wherein, Both the fixed template (1) and the movable template (2) are provided with placement grooves (5) on the side where they are mutually attached, and the placement grooves (5) are used for placing the splint (6).

4. The positioning tooling for the aviation composite material test piece according to claim 3, wherein The positioning assembly comprises: A positioning block (9) movably arranged in the placement groove (5), and a clamping area for the splint (6) is formed between the positioning block (9) and the placement groove (5); An adjusting member for driving the positioning block (9) to move along the placement groove (5), so that the positioning block (9) forms a pressing force on the splint (6).

5. The positioning tooling for the aviation composite material test piece according to claim 4, wherein The adjusting member comprises: A threaded rod (10) with one end rotatably connected to the positioning block (9), and the threaded rod (10) is matched with a threaded groove (11) opened on the surface of the fixed template (1); A guide rod (12) with one end connected to the positioning block (9), and the guide rod (12) is slidably matched with a guide groove (13) opened on the surface of the fixed template (1).

6. The positioning tooling for the aviation composite material test piece according to claim 1, characterized in that The cleaning member is a sponge block (17), and the sponge block (17) is arranged in the inner cavity (14) opened on the fixed template (1) and the movable template (2).

7. The positioning tooling for the aviation composite material test piece according to claim 6, wherein The driving member comprises: A roller (15) rotatably arranged in the inner cavity (14), and the rollers (15) are arranged in pairs; A belt (16) sleeved on the surface of the roller (15), and the sponge block (17) is arranged on the surface of the belt (16); A power structure for driving the roller (15) to rotate.

8. The positioning tooling for the aviation composite material test piece according to claim 7, wherein The power structure comprises: A first bevel gear (18) connected to the roller (15); A motor (19) arranged on the fixed template (1) and the movable template (2); A second bevel gear (20) matched with the first bevel gear (18), and the second bevel gear (20) is connected to the output shaft of the motor (19).

9. The positioning tooling for the aviation composite material test piece according to claim 8, characterized in that, Both the fixed template (1) and the movable template (2) are provided with a protective shell (21) for covering the motor (19), the first bevel gear (18) and the second bevel gear (20).

10. The positioning tooling for the aviation composite material test piece according to claim 1, characterized in that, A base (22) is arranged at the lower end of the fixed template (1), and mounting holes (23) are opened on the surface of the base (22).

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