Carbon fiber propeller PMI core material processing jig

Abstract

A carbon fiber propeller PMI core material processing jig comprises a horizontally-arranged lower cover plate, an upper cover plate is detachably fixed to the top end of the lower cover plate, a vertically-arranged rectangular groove is formed in the top end of the lower cover plate, a transversely-arranged partition plate is fixed to the middle of the bottom of the groove, and the groove is equally divided into two parts through the partition plate; a plurality of air holes communicated with the groove are formed in the front side and the rear side of the lower cover plate; a horizontally-arranged supporting base is detachably fixed to the top end of the upper cover plate, a first containing groove and a second containing groove which are used for containing propeller PMI core materials are formed in the top end of the supporting base, a plurality of upper air suction holes are formed in the bottom of the first containing groove and the bottom of the second containing groove, and a plurality of supporting blocks arranged at intervals are fixed to the bottom end of the supporting base. And a plurality of lower air exhaust holes are formed in the upper cover plate. The device is simple in structure and convenient to use.

Description

Technical Field

[0001] This utility model belongs to the field of propeller blade processing technology, and in particular relates to a processing fixture for carbon fiber propeller PMI core material. Background Technology

[0002] Unmanned aerial vehicles (UAVs) are a rapidly developing new concept of weaponry. They possess advantages such as maneuverability, rapid response, unmanned flight, and low operational requirements. Currently, the application of UAVs has expanded to three major fields: military, scientific research, and civilian use. Specifically, they are widely used in fields such as power, communications, meteorology, agriculture, oceanography, exploration, photography, disaster prevention and mitigation, crop yield estimation, drug enforcement and anti-smuggling, border patrol, and counter-terrorism. Currently, the core material of UAV propellers is PMI foam. The propeller core material is placed on a machine tool and cut using machine tool cutters. In existing technologies, after cutting one side of the propeller PMI core material, the cutter needs to be repositioned to cut the other side, which is a cumbersome process, causing inconvenience and low production efficiency. Therefore, existing technologies for processing carbon fiber propeller PMI core materials into UAV propellers also suffer from inconvenience and low efficiency. Utility Model Content

[0003] This invention addresses the technical problems of inconvenient production and low efficiency in the existing process of processing carbon fiber propeller PMI core material into drone propellers. It provides a processing fixture for carbon fiber propeller PMI core material, including a horizontally arranged lower cover plate. An upper cover plate is detachably fixed to the top of the lower cover plate. The lower cover plate has several lower fixing holes, and the upper cover plate has several upper fixing holes corresponding to the lower fixing holes. The upper and lower cover plates are detachably fixed by bolts. A vertically arranged rectangular groove is formed at the top of the lower cover plate. A horizontally arranged baffle plate is fixed at the bottom center of the groove, dividing the groove into two equal parts. Several air holes communicating with the groove are formed on both the front and rear sides of the lower cover plate. In use, these air holes are connected to a negative pressure pump. Activating the negative pressure pump extracts air from the lower cover plate, creating negative pressure. The top of the upper cover plate is detachably fixed with a horizontally arranged support base. The top of the support base has two slots, the first and the second, for placing the propeller PMI core material. The bottom of the first and the second slots has several upper air extraction holes. The bottom of the support base has several spaced support blocks. The upper cover plate has several lower air extraction holes. The air inside the lower cover plate is extracted by a negative pressure pump. Under the action of negative pressure, the upper air extraction holes on the support base suck the propeller PMI core material in the first and the second slots, which facilitates the machine tool to cut the propeller PMI core material.

[0004] Preferably, several evenly spaced support plates are fixed on both sides of the baffle. The support plates are arranged longitudinally and support the upper cover plate to reduce its deformation.

[0005] Preferably, the lower cover plate has an annular lower sealing groove circumferentially formed around the groove, and a lower sealing strip is provided in the lower sealing groove.

[0006] Preferably, the bottom of the support base is provided with an annular upper sealing groove, and an upper sealing strip is provided in the upper sealing groove.

[0007] Preferably, the top of the baffle plate has a number of evenly spaced threaded holes, the upper cover plate has an assembly through hole corresponding to the threaded holes, and the support base has a support base fixing hole corresponding to the threaded holes. This can enhance the sealing between the two grooves on the lower cover plate and allow the first and second placement grooves to be used independently.

[0008] The above-mentioned approach has the following advantages:

[0009] The baffle plate inside the lower cover plate divides the grooves evenly. During use, air is drawn from the two grooves by an air pump, allowing for individual or simultaneous use as needed, improving work efficiency and saving production costs. The support plate serves two purposes: first, it provides support and reduces deformation of the upper cover plate; second, it ensures smoother and more uniform airflow when air is drawn from the air vents, balancing the air velocity in the upper air vents on the support base. The first and second placement slots facilitate the placement of carbon fiber propeller PMI core materials, reducing positioning steps and improving efficiency. Both the upper and lower sealing strips provide a sealing function. Attached Figure Description

[0010] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0011] Figure 2 This is a schematic diagram of the exploded structure of this utility model;

[0012] Figure 3 This is a schematic diagram of the three-dimensional structure of the lower cover plate;

[0013] Figure 4 This is a schematic diagram of the three-dimensional structure of the top cover plate.

[0014] Reference numerals: 1. Lower cover plate; 2. Upper cover plate; 3. Support base; 11. Upper fixing hole; 12. Groove; 13. Baffle plate; 14. Air hole; 15. Support plate; 16. Threaded hole; 17. Lower sealing groove; 18. Lower sealing strip; 21. Upper fixing hole; 22. Assembly through hole; 23. Lower air extraction hole; 31. First placement groove; 32. Second placement groove; 33. Upper air extraction hole; 34. Base through hole; 35. Upper sealing groove; 36. Support block; 37. Support base fixing hole. Detailed Implementation

[0015] like Figure 1-4 As shown, a PMI core material processing fixture for carbon fiber propellers includes a horizontally arranged lower cover plate 1. An upper cover plate 2 is detachably fixed to the top of the lower cover plate 1. The lower cover plate 1 has several lower fixing holes 11, and the upper cover plate 2 has several upper fixing holes 21 corresponding to the lower fixing holes 11. The upper cover plate 2 and the lower cover plate 1 are detachably fixed by bolts. A vertically arranged rectangular groove 12 is formed at the top of the lower cover plate 1. A horizontally arranged baffle plate 13 is fixed at the bottom center of the groove 12, dividing the groove 12 into two equal parts. Several air holes 14 communicating with the groove 12 are formed on both the front and rear sides of the lower cover plate 1. In use, the air holes 14 are connected to a negative pressure pump. When the negative pressure pump is started, the negative pressure pump extracts air from the lower cover plate 1, thereby generating negative pressure. The top of the upper cover plate 2 is detachably fixed with a horizontally arranged support base 3. The top of the support base 3 has two first placement slots 31 and second placement slots 32 for placing the propeller PMI core material. The bottom of the first placement slots 31 and second placement slots 32 has several upper air extraction holes 33. The bottom of the support base 3 is fixed with several spaced support blocks 36. The upper cover plate 2 has several lower air extraction holes 23. The air in the lower cover plate 1 is extracted by a negative pressure pump. Under the action of negative pressure, the upper air extraction holes 33 on the support base 3 suck the propeller PMI core material in the first placement slots 31 and second placement slots 32, which facilitates the machine tool to cut the propeller PMI core material.

[0016] Preferably, a number of evenly spaced support plates 15 are fixed on both sides of the baffle plate 13. The support plates 15 are arranged longitudinally and provide support for the upper cover plate 2, thereby reducing the deformation of the upper cover plate 2.

[0017] Preferably, the lower cover plate 2 has an annular lower sealing groove 17 circumferentially formed around the groove, and a lower sealing strip 18 is provided in the lower sealing groove 17.

[0018] Preferably, the bottom of the support base 3 is provided with an annular upper sealing groove 35, and an upper sealing strip is provided in the upper sealing groove 35.

[0019] Preferably, the top of the baffle plate 13 is provided with a plurality of evenly spaced threaded holes 16, the upper cover plate 2 is provided with assembly through holes 22 corresponding to the threaded holes 16, and the support base 3 is provided with support base fixing holes 37 corresponding to the threaded holes 16. This can enhance the sealing between the two grooves 12 on the lower cover plate 1 and can meet the requirement that the first placement groove 31 and the second placement groove 32 can be used alone or at the same time.

[0020] Usage process:

[0021] In use, the carbon fiber propeller PMI core material with one side to be processed is placed in the first placement groove 31 and the second placement groove 32 respectively. Then, the negative pressure pump is started, and the negative pressure pump draws out the air in the lower cover plate 1, so as to generate negative pressure. The air in the lower cover plate 1 is drawn out by the negative pressure pump, and the upper air extraction hole 33 on the support base 3 is sucked tightly in the first placement groove 31 and the second placement groove 32 under the action of negative pressure, so as to facilitate the machine tool to cut the propeller PMI core material. When it is necessary to process a carbon fiber propeller PMI core material alone, it is only necessary to start the negative pressure pump corresponding to the groove 12 below the first placement groove 31 or the second placement groove 32.

[0022] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", "top", "bottom", "horizontal", "vertical", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the protection scope of the present invention.

Claims

1. A fixture for processing PMI core material of carbon fiber propellers, comprising a horizontally arranged lower cover plate, wherein an upper cover plate is detachably fixed to the top of the lower cover plate, characterized in that: The top of the lower cover plate has a vertically arranged rectangular groove. A horizontally arranged baffle is fixed at the bottom center of the groove, dividing the groove into two equal parts. Several air holes communicating with the groove are opened on both the front and rear sides of the lower cover plate. The top of the upper cover plate is detachably fixed with a horizontally arranged support base. The top of the support base has two placement slots, a first placement slot and a second placement slot, for placing the propeller PMI core material. Several upper air extraction holes are opened at the bottom of the first placement slot and the second placement slot. Several spaced support blocks are fixed at the bottom of the support base. Several lower air extraction holes are opened on the upper cover plate.

2. The carbon fiber propeller PMI core material processing fixture according to claim 1, characterized in that: Several evenly spaced support plates are fixed on both sides of the baffle, and the support plates are arranged longitudinally.

3. The carbon fiber propeller PMI core material processing fixture according to claim 1, characterized in that: The lower cover plate has an annular lower sealing groove around the groove, and a lower sealing strip is provided inside the lower sealing groove.

4. A fixture for processing PMI core material of carbon fiber propellers according to claim 1, characterized in that: The bottom of the support base has an annular upper sealing groove, and an upper sealing strip is installed inside the upper sealing groove.

5. A fixture for processing PMI core material of carbon fiber propellers according to claim 1, characterized in that: The lower cover plate has several lower fixing holes, and the upper cover plate has several upper fixing holes that correspond to the lower fixing holes.

6. A carbon fiber propeller PMI core material processing fixture according to claim 5, characterized in that: The top of the baffle plate has several threaded holes that are evenly spaced apart. The upper cover plate has assembly through holes that correspond one-to-one with the threaded holes. The support base has support base fixing holes that correspond one-to-one with the threaded holes.

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