Light aircraft sandwich foam material chamfer cutting device

Abstract

The utility model discloses a light aircraft sandwich foam material chamfer cutting device which comprises a rack, a rear frame type supporting frame is arranged on the top face of a top plate of the rack, and the front wall face of the rear frame type supporting frame is fixedly connected with a rear inclined supporting plate through bolts. A central through groove is formed in the middle of the top surface of the top plate of the rack in front of the rear inclined supporting plate; a baffle is fixed on the top surface of the top plate of the rack in front of the central through groove; connecting blocks are fixed to the front wall faces of the lower portions of the left side beam and the right side beam of the rear frame-shaped supporting frame and movably connected to the left side wall and the right side wall of the top plate of the rack through hinge shafts. The rear inclined supporting plates with different thicknesses can be replaced on the rear frame type supporting frame according to requirements, and the chamfering cutting requirements of aircraft sandwich foam plates with different thicknesses are met. The angle of the rear inclined supporting plate and the angle of the cutting blade can be adjusted, so that different chamfers can be cut on the sandwich foam board, and the chamfering device is convenient to adjust, high in machining precision and suitable for batch production.

Description

Technical field:

[0001] The utility model relates to the technical field of aircraft parts processing equipment, and more specifically to a chamfering and cutting device for sandwich foam materials of light aircraft. Background technology:

[0002] Under the premise of a certain effective load (passengers, fuel, luggage), reducing the weight of the aircraft body is an important factor to consider for light aircraft. Therefore, without affecting the strength of the fuselage and wings, the outer shell uses a sandwich foam board between two layers of carbon fiber plies to reduce its weight. However, in the process of cutting the sandwich foam, there is a certain degree of difficulty in cutting the chamfers, and the manual errors caused by humans are generally difficult to repair. The quality of the sandwich foam cutting will affect the quality of the aircraft components to a certain extent. Utility model content:

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a light aircraft sandwich foam material chamfering cutting device, which can adjust the angles of the rear oblique support plate and the cutting blade, so that different chamfers can be cut on the sandwich foam plate, and the adjustment is convenient, the processing accuracy is high, and it is suitable for mass production.

[0004] The solution of the utility model to solve the technical problem is:

[0005] A light aircraft sandwich foam material chamfering and cutting device comprises a stand, the top surface of the top plate of the stand is provided with a rear frame-type support frame, the front wall surface of the rear frame-type support frame is fixedly connected with a rear oblique support plate by bolts, a central through groove is formed in the middle of the top surface of the top plate of the stand in front of the rear oblique support plate, and a baffle is fixed on the top surface of the top plate of the stand in front of the central through groove; connecting blocks are fixed on the lower front wall surfaces of the left and right side beams of the rear frame-type support frame, and the connecting blocks are movably connected to the left and right side walls of the top plate of the stand through a hinge shaft;

[0006] The rear oblique support plates of different thicknesses can be replaced on the rear frame type support frame as required to meet the chamfering cutting requirements of aircraft sandwich foam panels of different thicknesses.

[0007] A lower connecting shell is fixed in the middle of the bottom surface of the top plate of the stand, and a rotatable cutting motor is installed in the lower connecting shell. A cutting blade is fixed on the output shaft of the cutting motor. The upper part of the cutting blade extends out of the top surface of the central through groove and is between the baffle and the front end of the lower part of the rear oblique support plate, and the cutting blade is close to the front end of the lower part of the rear oblique support plate.

[0008] Two obliquely arranged side support rods are located on the left and right sides of the platform, and a plurality of waist-shaped through grooves are formed on the side support rods along the length direction thereof. The screw rod portion of the upper fixing bolt is inserted into the upper waist-shaped through groove and screwed to the upper portion of the side beam of the rear frame-type support frame, and the upper portion of the side support rod is clamped between the rotating portion of the upper fixing bolt and the outer side wall of the corresponding side beam;

[0009] The screw portion of the lower fixing bolt is inserted into the waist-shaped through groove at the lower part of the side support rod and is screwed into the screw hole of the side wall of the top plate of the stand. The lower part of the side support rod is clamped between the side wall of the top plate of the stand and the rotating portion of the lower fixing bolt.

[0010] The upper fixing bolt and the lower fixing bolt can be removed and inserted into another corresponding waist-shaped through groove, so that the inclination angle of the rear oblique supporting plate can be changed to meet different cutting needs.

[0011] The middle part of the top surface of the lower connecting shell is an installation opening, and the top end surface of the lower connecting shell is fixedly connected to the bottom surface of the top plate of the stand by bolts, and support plates are fixed to the left and rear parts of the top surface of the bottom plate of the lower connecting shell, and the cutting motor is located between the two support plates. Connecting shafts are fixed to the middle parts of the left and right side plates of the cutting motor, and the connecting shafts are movably connected to the corresponding support plates, and the center through groove is communicated with the lower connecting shell.

[0012] An adjusting rod is fixed on one side wall at the rear of the cutting motor, and the outer end of the adjusting rod extends out of the corresponding arc-shaped adjusting slot on the supporting plate, and a raised column is formed in the middle of the outer end face of the adjusting rod, and a first outer tooth portion is formed on the outer wall of the raised column, a plug hole is formed in the middle of the limiting plate, an inner tooth groove is formed on the inner wall of the plug hole, and a second outer tooth portion is formed on the outer wall of the limiting plate, the raised column is inserted into the plug hole, the first outer tooth portion is inserted into the inner tooth groove and cooperates with the inner tooth groove, an arc strip is fixed on the outer wall surface of the supporting plate at one side of the arc-shaped adjusting slot, and a toothed groove is formed on one side wall of the arc strip facing the limiting plate, and part of the teeth of the second outer tooth portion of the limiting plate are inserted into the corresponding groove of the toothed groove, and a screw-connected column is formed on the outer wall surface of the middle part of the raised column, a locking component is screwed on it, and the limiting plate is clamped between the locking component and the outer wall of the raised column.

[0013] After loosening the locking component, the limiting piece is removed from the raised column, and the raised column is moved along the arc-shaped adjustment slot, so that the cutting motor can be rotated and the cutting piece can be tilted to meet different cutting needs.

[0014] A through hole is formed on the bottom plate of the lower connecting shell, the top end of the dust suction pipe is fixed on the bottom plate of the lower connecting shell and communicates with the through hole, and the other end of the dust suction pipe is connected to the main dust suction pipe of the dust removal equipment arranged in the factory.

[0015] The dust suction pipe can absorb and dispose of the cut powder and waste chips.

[0016] The outstanding effects of the utility model are:

[0017] It can adjust the angles of the rear oblique support plate and the cutting piece, so that different chamfers can be cut on the sandwich foam board. It has convenient adjustment, high processing accuracy and is suitable for mass production.

[0018] At the same time, it can absorb and process the powder and waste chips generated by cutting during cutting, thus reducing the impact on the surrounding environment. Description of the drawings:

[0019] Figure 1 It is a partial structural schematic diagram of the utility model;

[0020] Figure 2 It is a partial side view of the utility model (without the horizontal retaining strip);

[0021] Figure 3 yes Figure 2 A partial enlarged view of

[0022] Figure 4 is a schematic diagram of the local structure of the lower connecting shell;

[0023] Figure 5 It is a partial cross-sectional view between the limiter and other parts;

[0024] Figure 6 It is a schematic diagram of the local structure between the dust suction pipe and the main dust suction pipe. Specific implementation method:

[0025] For example, see Figures 1 to 6 As shown, a light aircraft sandwich foam material chamfering cutting device includes a stand 10, including a top plate, the bottom surfaces of the four corners of the top plate are fixed with vertically extending legs, the bottoms of the legs are fixedly connected to the ground by bolts, the top surface of the top plate of the stand 10 is provided with a rear oblique support plate 20, a central through groove 11 is formed in the middle of the top surface of the top plate of the stand 10 in front of the rear oblique support plate 20, and a baffle 30 is fixed on the top surface of the top plate of the stand 10 in front of the central through groove 11;

[0026] A lower connecting shell 40 and a lower support frame are fixed to the middle part of the bottom surface of the top plate of the stand 10, the bottom surface of the bottom support member fixed to the bottom surface of the bottom plate of the lower connecting shell 40 is on the top surface of the bottom beam of the lower support frame, and further support is achieved by the lower support frame. A rotatable cutting motor 50 is installed in the lower connecting shell 40, and a cutting blade 51 is fixed on the output shaft of the cutting motor 50. The upper part of the cutting blade 51 extends out of the top surface of the central through groove 11 and is between the baffle 30 and the front end of the lower part of the rear oblique support plate 20, and the cutting blade 51 is close to the front end of the lower part of the rear oblique support plate 20.

[0027] Furthermore, the rear oblique support plate 20 is fixedly connected to the front wall surface of the rear frame-type support frame 21 by bolts, and the lower front wall surfaces of the left and right side beams 211 of the rear frame-type support frame 21 are fixed with connecting blocks 212, and the connecting blocks 212 are movably connected to the left and right side walls of the top plate of the stand 10 through a hinge axis;

[0028] Two obliquely arranged side support rods 60 are located on the left and right sides of the platform 10. The side support rods 60 include a vertical plate portion and a bent plate portion formed on its side wall. The vertical plate portion and the bent plate portion are formed with a plurality of waist-shaped through grooves 61 along their length direction. The screw portion of the upper fixing bolt 1 is inserted into the waist-shaped through groove 61 at the upper part of the vertical plate portion and is screwed to the upper part of the side beam of the rear frame type support frame 21. The upper part of the vertical plate portion of the side support rod 60 is clamped between the rotating portion of the upper fixing bolt 1 and the outer side wall of the corresponding side beam 211.

[0029] The screw portion of the lower fixing bolt 2 is inserted into the waist-shaped through groove 61 at the lower part of the vertical plate portion of the side support rod 60 and is screwed into the screw hole of the side wall of the top plate of the stand 10. The lower part of the vertical plate portion of the side support rod 60 is clamped between the side wall of the top plate of the stand 10 and the rotating portion of the lower fixing bolt 2.

[0030] The above structure can be used to change the inclination angle of the rear oblique support plate 20 by removing the upper fixing bolt 1 or the lower fixing bolt 2, and then inserting the upper fixing bolt 1 or the lower fixing bolt 2 into the corresponding waist-shaped through groove 61 and tightening and fixing it in the corresponding position to achieve the inclination adjustment of the rear oblique support plate 20. During the adjustment process, the maximum inclination angle is when the side support rod 60 is perpendicular to the top surface of the top plate of the stand 10.

[0031] Furthermore, the bottom of the baffle 30 is formed with a horizontal bent plate portion 31, and the horizontal support plate portion 31 is fixedly connected to the top surface of the top plate of the stand 10 by bolts, and the baffle 30 is a plate body extending obliquely forward and upward;

[0032] Horizontal stopper strips 3 are fixed on the top surface of the top plate of the stand 10 on the left and right sides of the horizontal bending plate portion 31, and the rear wall surface of the horizontal stopper strip 3 is close to the bottom front end of the rear oblique support plate 20. The horizontal stopper strip 3, the rear oblique support plate 20, and the stopper plate 30 make the waste cuts generated by cutting as much as possible above the central through groove 11, so as to facilitate the suction treatment by the dust suction pipe 5.

[0033] Furthermore, the middle part of the top surface of the lower connecting shell 40 is an installation placement opening, the top end surface of the lower connecting shell 40 is fixedly connected to the bottom surface of the top plate of the stand 10 by bolts, and the left and rear parts of the top surface of the bottom plate of the lower connecting shell 40 are fixed with support plates 41, and the cutting motor 50 is located between the two support plates 41. The middle parts of the left and right side plates of the cutting motor 50 are fixed with connecting shafts, and the connecting shafts are movably connected to the corresponding support plates 41, and the center through groove 11 is communicated with the lower connecting shell 40.

[0034] An adjusting rod 52 is fixed on one side wall at the rear of the cutting motor 50, and the outer end of the adjusting rod 52 extends out of the arc-shaped adjusting slot 42 on the corresponding support plate 41. A protruding column 53 is formed in the middle of the outer end surface of the adjusting rod 52, and a first external tooth portion is formed on the outer wall of the protruding column 53. A plug hole is formed in the middle of the limiting plate 54, and an internal tooth groove is formed on the inner wall of the plug hole. A second external tooth portion is formed on the outer wall of the limiting plate 54, and the protruding column 53 is inserted into the plug hole, and the first external tooth portion is inserted into the plug hole. In the inner tooth groove and in cooperation with the inner tooth groove, an arc strip 411 is fixed on the outer wall surface of the support plate 41 at one side of the arc-shaped adjustment slot 42, and a tooth-shaped groove is formed on the side wall of the arc strip 411 facing the limiting plate 54, and part of the tooth portion of the second outer tooth portion of the limiting plate 54 is inserted into the corresponding groove of the tooth-shaped groove, and a screw connection column is formed on the middle outer wall surface of the protruding column 53, and a locking component 55 is screwed on it, and the limiting plate 54 is clamped between the locking component 55 and the outer wall of the protruding column 53. The locking component 55 can be composed of a self-locking nut or two nuts pressed against each other, so as to prevent the vibration generated by the cutting motor 50 when it is running from causing the locking component 55 to loosen.

[0035] The outer wall of the support plate 41 with the arc-shaped adjustment groove 42 is tightly attached to the inner wall of the corresponding side plate of the lower connecting shell 40, and the arc-shaped strip 411, the limit plate 54 and other components are inserted into the groove of the corresponding side plate of the lower connecting shell 40. An arc-shaped scale plate is fixed on the outer wall surface of the side plate of the lower connecting shell 40 at the edge of the groove, and a scale is formed on the outer wall surface of the arc-shaped scale plate, which corresponds to the limit plate 54.

[0036] This structure allows the locking component 55 to be loosened and the limiting plate 54 to be removed from the raised column 53 when the angle of the cutting blade 51 needs to be adjusted. Then, the screw column is moved along the arc-shaped adjustment slot 42 to the required position, and the raised column 53 is inserted into the insertion hole of the limiting plate 54. The first outer tooth portion is inserted into the inner tooth groove and cooperates with the inner tooth groove, and part of the teeth of the second outer tooth portion of the limiting plate 54 are inserted into the corresponding groove of the tooth groove. Then, the locking component 55 is tightened to complete the fixation. However, during adjustment, there may be a situation where part of the teeth of the second outer tooth portion of the limiting plate 54 cannot be inserted into the corresponding groove of the tooth groove. At this time, it is necessary to make a fine adjustment. The distance of this fine adjustment generally does not affect the cutting angle requirements (the accuracy of the general cutting angle is about 1° to 3°, which fully meets the cutting requirements).

[0037] A through hole is formed on the bottom plate of the lower connecting shell 40, the top end of the dust suction pipe 5 is fixed on the bottom plate of the lower connecting shell 40 and communicated with the through hole, and the other end of the dust suction pipe 5 is connected to the main dust suction pipe 100 of the dust removal equipment installed in the factory.

[0038] The main dust suction pipe 100 is a dust suction pipe of an external dust suction device, and the dust suction device can be an environmental protection device directly purchased on the market, which will not be described in detail here.

[0039] Since the suction port of the main suction pipe 100 of the vacuum cleaner is relatively large, while the nozzle of the vacuum pipe 5 is relatively small, a connecting plate can be fixed on the suction port of the main suction pipe 100, a through hole is formed in the middle of the connecting plate, and the end of the vacuum pipe 5 is fixed on the connecting plate and communicated with the through hole, so as to achieve connection and vacuuming.

[0040] When this embodiment is in use, the cutting motor 50 runs, causing the cutting blade 51 to rotate, which can bring the rear wall of the sandwich foam close to the front wall of the rear oblique support plate 20 and move from right to left. When moving past the cutting blade 51, chamfering is performed on its bottom end. During cutting, the dust suction pipe 5 is adsorbed by the main dust suction pipe 100 and has suction force, which causes the lower connecting shell 40 to be under negative pressure, so that the waste generated from the outside is sucked into the lower connecting shell 40 through the central through groove 11, and then enters the dust suction pipe 5, and is finally adsorbed by the main dust suction pipe 100 into the dust suction device. The chamfering angle can be adjusted, so that different chamfers can be cut on the sandwich foam board. It is easy to adjust and has high processing accuracy, and is suitable for mass production.

[0041] At the same time, it can absorb and process the powder and waste chips generated by cutting during cutting, reducing the impact on the surrounding environment.

Claims

1. A light aircraft sandwich foam material chamfering and cutting device, comprising a stand (10), characterized in that: A rear oblique support plate (20) is provided on the top surface of the top plate of the stand (10), a central through groove (11) is formed in the middle of the top surface of the top plate of the stand (10) in front of the rear oblique support plate (20), and a baffle (30) is fixed on the top surface of the top plate of the stand (10) in front of the central through groove (11); A lower connecting shell (40) is fixed to the middle of the bottom surface of the top plate of the stand (10), a cutting motor (50) that can rotate at an angle is installed in the lower connecting shell (40), a cutting blade (51) is fixed to the output shaft of the cutting motor (50), the upper part of the cutting blade (51) extends out of the top surface of the central through slot (11) and is located between the baffle plate (30) and the front end of the lower part of the rear oblique support plate (20), and the cutting blade (51) is close to the front end of the lower part of the rear oblique support plate (20).

2. A light aircraft sandwich foam material chamfering cutting device according to claim 1, characterized in that: A rear frame-type support frame (21) is fixed on the rear wall surface of the rear oblique support plate (20), and a connecting block (212) is fixed on the lower front wall surface of the left and right side beams (211) of the rear frame-type support frame (21), and the connecting block (212) is movably connected to the left and right side walls of the top plate of the platform (10) through a hinge shaft; Two obliquely arranged side support rods (60) are located on the left and right sides of the platform (10), and a plurality of waist-shaped through grooves (61) are formed on the side support rods (60) along the length direction thereof. The screw portion of the upper fixing bolt (1) is inserted into the upper waist-shaped through groove (61) and is screwed to the upper portion of the side beam of the rear frame-type support frame (21), and the upper portion of the side support rod (60) is clamped between the rotating portion of the upper fixing bolt (1) and the outer side wall of the corresponding side beam (211); The screw portion of the lower fixing bolt (2) is inserted into the waist-shaped through groove (61) at the lower part of the side support rod (60) and is screwed into the screw hole of the side wall of the top plate of the stand (10). The lower part of the side support rod (60) is clamped between the side wall of the top plate of the stand (10) and the rotating part of the lower fixing bolt (2).

3. A light aircraft sandwich foam material chamfering cutting device according to claim 1, characterized in that: The bottom of the baffle (30) is formed with a horizontally bent plate portion (31), and the horizontally bent plate portion (31) is fixedly connected to the top surface of the top plate of the stand (10) by bolts, and the baffle (30) is a plate body extending obliquely forward and upward; Horizontal material blocking strips (3) are fixed on the top surfaces of the top plates of the stands (10) on the left and right sides of the horizontal bending plate portion (31), and the rear wall surface of the horizontal material blocking strips (3) is close to the bottom front end of the rear oblique support plate (20).

4. A light aircraft sandwich foam material chamfering cutting device according to claim 1, characterized in that: The middle part of the top surface of the lower connecting shell (40) is an installation opening, the top end surface of the lower connecting shell (40) is fixedly connected to the bottom surface of the top plate of the stand (10) by bolts, the left part and the rear part of the top surface of the bottom plate of the lower connecting shell (40) are fixed with support plates (41), the cutting motor (50) is located between the two support plates (41), the middle parts of the left and right side plates of the cutting motor (50) are fixed with connecting shafts, the connecting shafts are movably connected to the corresponding support plates (41), and the central through groove (11) is communicated with the lower connecting shell (40).

5. The chamfering and cutting device for sandwich foam materials for light aircraft according to claim 1, characterized in that: An adjusting rod (52) is fixed on a side wall at the rear of the cutting motor (50), the outer end of the adjusting rod (52) extends out of the arc-shaped adjusting slot (42) on the corresponding support plate (41), a raised column (53) is formed in the middle of the outer end surface of the adjusting rod (52), a first external tooth portion is formed on the outer wall of the raised column (53), a plug hole is formed in the middle of the limiting plate (54), an internal tooth groove is formed on the inner wall of the plug hole, a second external tooth portion is formed on the outer wall of the limiting plate (54), the raised column (53) is inserted into the plug hole, and the first external tooth portion is inserted into the plug hole. An arc strip (411) is fixed on the outer wall surface of the support plate (41) at one side of the arc-shaped adjustment slot (42) in the inner tooth groove and matched with the inner tooth groove. A tooth-shaped groove is formed on the side wall of the arc strip (411) facing the limiting plate (54). Part of the tooth portion of the second outer tooth portion of the limiting plate (54) is inserted into the corresponding groove of the tooth-shaped groove. A screw connection column is formed on the middle outer wall surface of the protruding column (53), and a locking component (55) is screwed on the protruding column. The limiting plate (54) is clamped between the locking component (55) and the outer wall of the protruding column (53).

6. The chamfering and cutting device for sandwich foam materials for light aircraft according to claim 1, characterized in that: A through hole is formed on the bottom plate of the lower connecting shell (40), the top end of the dust suction pipe (5) is fixed on the bottom plate of the lower connecting shell (40) and communicates with the through hole, and the other end of the dust suction pipe (5) is connected to the main dust suction pipe (100) of the dust removal equipment arranged in the factory.

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