Ultrasonic vibration chamfering device and method for inner wall hole of tubular composite material

Abstract

The application discloses a tubular composite material inner wall hole ultrasonic vibration chamfering device, which comprises a non-standard tool shank, a machine tool spindle fixing frame and an ultrasonic vibration chamfering structure; a pull pin at the top end of the non-standard tool shank is connected with the machine tool spindle through a pneumatic clamping device, and the bottom end of the non-standard tool shank is connected with the ultrasonic vibration chamfering structure; the ultrasonic vibration chamfering structure comprises a box body structure, a connecting transmission component connected through a toothed conveyor belt and installed in the box body structure and a vibration chamfering component used for ultrasonic vibration chamfering; an ultrasonic wave transmission device connected with an ultrasonic generator is arranged in the box body structure, and the ultrasonic wave transmission device is arranged on one side of the vibration chamfering component; the vibration chamfering component and the connecting transmission component are respectively arranged at two ends in the box body structure, the top end of the connecting transmission component is connected with the bottom end of the non-standard tool shank, the non-standard tool shank drives the toothed conveyor belt to move by driving the connecting transmission component, and then the vibration chamfering component is driven to rotate, and the bottom end of the vibration chamfering component is connected with a chamfering tool used for chamfering the inner wall of the tubular composite material. The application solves the problem that the tubular composite material inner wall hole cannot be chamfered after being drilled due to the limitation of space, the quality of the hole wall and the edge after machining is poor, and great difficulty is brought to the automatic and efficient machining.

Description

Technical Field

[0001] The present invention relates to the technical field of composite material machining, in particular to a device and method for ultrasonic vibration chamfering of inner wall holes of tubular composite materials. Background Art

[0002] Tubular composite materials, with their excellent mechanical properties, good corrosion resistance, design flexibility, and wide range of applications, are playing an increasingly important role in modern industrial and technological development. Assembly of tubular composite materials with other workpieces often requires drilling holes, which can easily lead to burrs and cracks, severely impacting assembly accuracy. After drilling holes into the inner wall of tubular composite materials, chamfering is often impossible due to limited space, resulting in poor quality of the hole walls and edges, greatly hindering efficient and automated processing. Therefore, achieving chamfering of the inner wall holes of tubular composite materials and ensuring their quality are pressing challenges for manufacturers. Summary of the Invention

[0003] The present invention provides an ultrasonic vibration chamfering device and method for inner wall holes of a tubular composite material, so as to overcome the above technical problems.

[0004] In order to achieve the above object, the technical solution of the present invention is:

[0005] An ultrasonic vibration chamfering device for inner wall holes of tubular composite materials, comprising a non-standard tool holder, a machine tool spindle fixing frame, and an ultrasonic vibration chamfering structure connected to the machine tool spindle fixing frame:

[0006] The pull nail at the top of the non-standard tool handle is connected to the machine tool spindle through a pneumatic clamping device, and the bottom end of the non-standard tool handle is connected to the ultrasonic vibration chamfering structure;

[0007] The ultrasonic vibration chamfering structure includes a box structure, and a connecting transmission member and a vibration chamfering member for ultrasonic vibration chamfering installed inside the box structure and connected by a toothed conveyor belt;

[0008] An ultrasonic transmission device connected to the ultrasonic generator is provided in the box structure, and the ultrasonic transmission device is arranged on one side of the vibrating chamfered component;

[0009] The vibrating chamfering component and the connecting transmission component are respectively arranged at the two ends inside the box structure, and the top end of the connecting transmission component is connected to the bottom end of the non-standard tool handle. The non-standard tool handle drives the toothed conveyor belt to move by driving the connecting transmission component, thereby driving the vibrating chamfering component to rotate. The bottom end of the vibrating chamfering component is connected to a chamfering knife for chamfering the inner wall of the tubular composite material.

[0010] Furthermore, the second vibration chamfering component includes a longitudinal horn, a transducer, a first gear and a first bearing member;

[0011] The longitudinal amplitude rod is connected with a transducer, and the transducer comprises four electrode sheets and four piezoelectric ceramic sheets connected alternately from top to bottom;

[0012] The first gear sleeve and the first bearing sleeve are arranged on the longitudinal amplitude rod, and a wireless transmission inner ring is arranged at the top end of the longitudinal amplitude rod and electrically connected with the electrode sheet;

[0013] The bottom end of the longitudinal amplitude rod penetrates through the bottom end of the box structure and is connected with the chamfering tool;

[0014] Further, the box structure comprises an upper box cover and a lower box cover;

[0015] One end of the upper box cover is provided with a through hole structure connected with the output end of the non-standard tool handle;

[0016] The lower box cover is provided with a first mounting groove structure, a second mounting groove structure and a conveyor belt mounting groove structure, thereby forming a block structure for mounting the ultrasonic transmission device;

[0017] The first mounting groove structure and the second mounting groove structure are in communication with the conveyor belt mounting groove structure.

[0018] Further, the connection transmission member comprises a stepped shaft, a second gear and a second bearing;

[0019] The second bearing is the same as the first bearing, and the second gear and the second bearing are arranged on the stepped shaft, and the second gear is connected with the first gear through a toothed conveyor belt;

[0020] The toothed conveyor belt comprises a straight section and an arc section, and the radius of the circle on the outer side of the arc section is smaller than the radius of the circle on the outer wall of the second bearing.

[0021] Further, the block structure is provided with a 1 / 8 annular groove structure;

[0022] The ultrasonic transmission device comprises a 1 / 8 annular ferrite matched with the 1 / 8 annular groove structure;

[0023] The 1 / 8 annular ferrite is provided with a mounting groove structure for mounting a 1 / 8 annular wireless transmission coil.

[0024] Further, the width of the box structure is less than one third of the diameter of the inner wall of the tubular composite material;

[0025] The height from the top end surface of the box structure to the bottom end surface of the chamfering tool is less than two thirds of the diameter of the inner wall of the tubular composite material.

[0026] A method for ultrasonic vibration chamfering of a hole in the inner wall of a tubular composite material, comprising the following steps:

[0027] S1: install the tubular composite material to be chamfered on the set fixture with a protractor;

[0028] S2: connect the pull pin at the top end of the non-standard tool shank to the machine tool spindle through the pneumatic clamping device, and connect the bottom end of the non-standard tool shank to the top end of the connecting transmission member;

[0029] S3: set the search frequency and start the ultrasonic generator, and transmit the output of the ultrasonic generator to the wireless transmission inner ring set at the top end of the longitudinal amplitude rod through the 1 / 8 annular wireless transmission coil in the ultrasonic transmission device;

[0030] and the search frequency range is 25 kHz-35 kHz;

[0031] and transmit the output of the ultrasonic generator to the transducer through the wireless transmission inner ring, and then make the chamfering tool at the top corner connected with the longitudinal amplitude rod vibrate through the transducer;

[0032] and the amplitude at the top corner of the chamfering tool is 5-8 μm;

[0033] S4: set the positioning program of the center position of each row of inner wall holes on the chamfering tool and the tubular composite material;

[0034] After confirming that the chamfering tool corresponds to the center position of each inner wall hole in the current row based on the positioning program, set the spindle speed and start the machine tool, and the machine tool spindle drives the connecting transmission member to rotate relative to the box structure through the non-standard tool shank;

[0035] S5: drive the toothed belt to move through the connecting transmission member, then drive the ultrasonic vibration chamfering structure to rotate through the toothed belt, and drive the chamfering tool with amplitude to rotate through the ultrasonic vibration chamfering structure, so as to realize the vibration chamfering of the inner wall holes of the tubular composite material;

[0036] S6: After completing the vibration chamfering of each inner wall hole in the current row on the tubular composite material, rotate the fixture with the protractor to realize the vibration chamfering of all inner wall holes of the tubular composite material;

[0037] S7: turn off the machine tool and the ultrasonic generator, and remove the tubular composite material after vibration chamfering.

[0038] Beneficial effects: the present application provides a tubular composite material inner wall hole ultrasonic vibration chamfering device and method, through non-standard tool holder driving connection transmission member drives the toothed conveyor belt movement, and then drives the vibration chamfering member to rotate, the bottom end of the vibration chamfering member is connected with the chamfering tool for the chamfering of tubular composite material inner wall, so as to realize the ultrasonic vibration chamfering of tubular composite material inner wall hole, by applying longitudinal ultrasonic vibration on the chamfering tool, the size accuracy and position accuracy of the tubular composite material inner wall hole are improved, so that the chamfering efficiency of the tubular composite material inner wall hole is greatly improved while ensuring the quality of the hole wall edge, and the processing cost is reduced and the inner wall hole processing quality is improved. BRIEF DESCRIPTION OF DRAWINGS

[0039] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0040] Fig. 1 It is a structural schematic diagram of the tubular composite material inner wall hole ultrasonic vibration chamfering device of the present application.

[0041] Fig. 2 It is a schematic diagram of non-standard tool holder and machine tool spindle fixing frame in the present embodiment.

[0042] Fig. 3 It is a schematic diagram of the upper box cover in the present embodiment.

[0043] Fig. 4 It is a schematic diagram of the lower box cover in the present embodiment.

[0044] Fig. 5 It is a schematic diagram of the connection between the transmission member and the vibration chamfering member in the present embodiment.

[0045] Fig. 6 It is a structural schematic diagram of the vibration chamfering member in the present embodiment.

[0046] Fig. 7 It is a structural schematic diagram of the transmission member in the present embodiment.

[0047] As shown in the figure, the device comprises a non-standard tool shank 1, a machine tool spindle fixing frame 2, and an ultrasonic vibration chamfering structure 3 connected to the machine tool spindle fixing frame 2 through a countersunk head bolt; the top end of the non-standard tool shank 1 is connected to the machine tool spindle through a pneumatic clamping device, and the bottom end of the non-standard tool shank 1 is connected to the ultrasonic vibration chamfering structure 3; wherein the pneumatic clamping device is a known technical means, and is not the point of the present application, and will not be described in detail here. DETAILED DESCRIPTION

[0048] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0049] The present embodiment provides an ultrasonic vibration chamfering device for a tubular composite material inner wall hole, as shown in the figure, comprising a non-standard tool shank 1, a machine tool spindle fixing frame 2, and an ultrasonic vibration chamfering structure 3 connected to the machine tool spindle fixing frame 2 through a countersunk head bolt; the top end of the non-standard tool shank 1 is connected to the machine tool spindle through a pneumatic clamping device, and the bottom end of the non-standard tool shank 1 is connected to the ultrasonic vibration chamfering structure 3; wherein the pneumatic clamping device is a known technical means, and is not the point of the present application, and will not be described in detail here. Figs. 1-2 The ultrasonic vibration chamfering structure 3 comprises a box structure 31, and a connecting transmission member 33 and a vibration chamfering member 32 for ultrasonic vibration chamfering connected through a toothed transmission belt 34 installed inside the box structure 31, and the connecting transmission member 33 is rotatably connected with the vibration chamfering member 32 and the box structure 31 inside, wherein the bottom end of the non-standard tool shank 1 is connected with the countersunk head hexagonal prism on the top end of the stepped shaft 331 through cooperation,

[0050] The ultrasonic vibration chamfering structure 3 comprises a box structure 31, and a connecting transmission member 33 and a vibration chamfering member 32 for ultrasonic vibration chamfering connected through a toothed transmission belt 34 installed inside the box structure 31, and the connecting transmission member 33 is rotatably connected with the vibration chamfering member 32 and the box structure 31 inside, wherein the bottom end of the non-standard tool shank 1 is connected with the countersunk head hexagonal prism on the top end of the stepped shaft 331 through cooperation,

[0051] Specifically, as shown in the figure, Figs. 5-6As shown, the second vibration chamfering member 32 comprises a longitudinal amplitude rod 321, a transducer 322, a first gear 323 and a first bearing member 324; the longitudinal amplitude rod 321 is internally connected with the transducer 322, and the transducer 322 comprises a plurality of electrode sheets 3221 and piezoelectric ceramic sheets 3222 connected in turn alternately from top to bottom, preferably four electrode sheets 3221 and four piezoelectric ceramic sheets 3222; the first gear 323 and the first bearing member 324 are sleeved on the longitudinal amplitude rod 321, and the top end of the longitudinal amplitude rod 321 is provided with a wireless transmission inner ring 3211 electrically connected with the electrode sheet 3221;

[0052] The box structure 31 comprises an upper box cover 311 and a lower box cover 312; as Figs. 3-4 As shown, one end of the upper box cover 311 is provided with a through hole structure connected with the output end of the non-standard tool shank 1; the lower box cover 312 is provided with a first mounting groove structure 3121, a second mounting groove structure 3122 and a conveyor belt mounting groove structure 3123, forming a block structure 3124 for mounting the ultrasonic transmission device 6; and the first mounting groove structure 3121 and the second mounting groove structure 3122 are in communication with the conveyor belt mounting groove structure 3123; wherein a through hole is provided in the center of the upper box cover 311, and the wires in the 1 / 8 annular wireless transmission coil 62 are connected with the ultrasonic generator 5 through the through hole in the center of the upper box cover 311; the upper box cover 311 and the lower box cover 312 are provided with bolt holes at the corners and are connected by countersunk head bolts;

[0053] As Fig. 7 shown, the connection transmission member 33 comprises a stepped shaft 331, a second gear 332 and a second bearing member 333;

[0054] The second bearing member 333 is the same as the first bearing member 324, and the upper end of the second bearing member 333 and the first bearing member 324 is provided with a bearing clasp, the second gear 332 and the second bearing member 333 are sleeved on the stepped shaft 331, and the second gear 332 is connected with the first gear 323 through the toothed conveyor belt 34; the toothed conveyor belt 34 comprises a straight line segment 341 and an arc segment 342, and the radius of the circle on the outer side of the arc segment 342 is smaller than the radius of the circle on the outer wall of the second bearing member 333;

[0055] The bottom end of the longitudinal amplitude rod 321 penetrates through the bottom end of the box structure 31 and is connected with the chamfering tool 4.

[0056] The box structure 31 is provided with an ultrasonic transmission device 6 connected with the ultrasonic generator 5, and the ultrasonic transmission device 6 is arranged on one side of the vibration chamfering member 32;

[0057] The vibration chamfering component 32 and the connecting transmission component 33 are respectively arranged at the two ends inside the box structure 31, and the top end of the connecting transmission component 33 is connected to the bottom end of the non-standard tool handle 1. The non-standard tool handle 1 drives the toothed conveyor belt 34 to move by driving the connecting transmission component 33, thereby driving the vibration chamfering component 32 to rotate. The bottom end of the vibration chamfering component 32 is connected to a chamfering knife 4 for chamfering the inner wall of the tubular composite material.

[0058] This embodiment drives the toothed conveyor belt to move by connecting the transmission component through a non-standard tool holder, and then drives the vibration chamfering component to rotate. The bottom end of the vibration chamfering component is connected to a chamfering knife for chamfering the inner wall of the tubular composite material, so as to realize ultrasonic vibration chamfering of the inner wall hole of the tubular composite material. By applying longitudinal ultrasonic vibration to the chamfering knife, the dimensional accuracy and positional accuracy of the inner wall hole of the tubular composite material are improved, so that while ensuring the quality of the hole wall edge, the chamfering efficiency of the inner wall hole of the tubular composite material is greatly improved, and the processing cost is reduced and the processing quality of the inner wall hole is improved.

[0059] In a specific embodiment, the block structure 3124 is provided with a 1 / 8 annular groove structure 31240;

[0060] The ultrasonic transmission device 6 includes a 1 / 8 annular ferrite 61 that is compatible with the 1 / 8 annular groove structure 31240; the 1 / 8 annular ferrite 61 is provided with an installation groove structure for installing a 1 / 8 annular wireless transmission coil 62, so that the ultrasonic transmission device 6 can be installed inside the box structure 31, and an ultrasonic transmission device is formed between the ultrasonic transmission device 6 and the vibration chamfering component 32, so as to generate amplitude at the top angle of the chamfering tool during the ultrasonic vibration chamfering process of the inner wall hole of the tubular composite material.

[0061] In a specific embodiment, the width of the box structure 31 is less than one-third of the diameter of the inner wall of the tubular composite material; the height from the top end surface of the box structure 31 to the bottom end surface of the chamfering knife 4 is less than two-thirds of the diameter of the inner wall of the tubular composite material, so as to ensure that the ultrasonic vibration chamfering structure 3 can chamfer all inner wall holes on the tubular composite material, and avoid damage to the tubular composite material due to collision between the ultrasonic vibration chamfering structure 3 and the inner wall of the tubular composite material.

[0062] A method for chamfering inner wall holes of a tubular composite material by ultrasonic vibration, comprising the following steps:

[0063] S1: Mounting the tubular composite material A to be chamfered on a predetermined fixture having a graduated plate, and further comprising clamping the tubular composite material workpiece to be chamfered with a predetermined V-shaped pressing block;

[0064] S2: Connect the pull nail at the top of the non-standard tool holder 1 to the machine tool spindle through a pneumatic clamping device, and connect the bottom end of the non-standard tool holder 1 to the top end of the connecting transmission member 33;

[0065] S3: Setting the search frequency and starting the ultrasonic generator 5, transmitting the output of the ultrasonic generator 5 to the wireless transmission inner ring 3211 provided at the top of the longitudinal amplitude variable rod 321 through the 1 / 8 annular wireless transmission coil 62 in the ultrasonic transmission device 6; and transmitting the output of the ultrasonic generator 5 to the transducer 322 through the wireless transmission inner ring 3211, thereby generating an amplitude at the top corner of the chamfering cutter 4 connected to the longitudinal amplitude variable rod 321 through the transducer 322; preferably, the search frequency range is set to 25kHz-35kHz; the amplitude at the top corner of the chamfering cutter 4 is 5-8μm, and the temperature of the ultrasonic vibration chamfering device for the inner wall of the tubular composite material is less than 35°;

[0066] S4: a positioning procedure for setting the center position of the chamfering blade 4 and each row of inner wall holes on the tubular composite material. The positioning procedure can be implemented by conventionally known technical means based on the position of each row of inner wall holes on the tubular composite material and the position of the center line of the chamfering blade 4. This part is not the invention of the application and will not be elaborated on here.

[0067] After confirming that the chamfering cutter 4 corresponds to the center position of each inner wall hole in the current row based on the positioning program, the spindle speed is set and the machine tool is started. The spindle speed is preferably set to 500 r / min; and the machine tool spindle drives the connection transmission member 33 to rotate relative to the box structure 31 through the non-standard tool holder 1;

[0068] S5: The toothed conveyor belt 34 is driven to move by the connecting transmission member 33, and the ultrasonic vibration chamfering structure 3 is driven to rotate by the toothed conveyor belt 34. The ultrasonic vibration chamfering structure 3 drives the chamfering knife 4 that generates the amplitude to rotate, so as to achieve vibration chamfering of the inner wall hole of the tubular composite material;

[0069] S6: After completing the vibration chamfering of each inner wall hole of the current row on the tubular composite material, the vibration chamfering of all inner wall holes of the tubular composite material is achieved by rotating the fixture of the indexing plate;

[0070] S7: Turn off the machine tool and the ultrasonic generator 5, and remove the tubular composite material after vibration chamfering.

[0071] The beneficial effect of the embodiment is that the lathe main shaft drives the stepped shaft, the second gear, the toothed transmission belt, the first gear, the longitudinal amplitude bar and the chamfering tool to rotate in turn, realizes the chamfering processing of the 360° of the tubular composite material inner wall hole, and the longitudinal ultrasonic vibration is applied on the chamfering tool through the vibration chamfering component 32, the size precision and the position precision of the tubular composite material inner wall hole are improved, the chamfering efficiency of the tubular composite material inner wall hole is greatly improved while the hole wall edge quality is ensured.

[0072] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An ultrasonic vibration chamfering device for inner wall holes of tubular composite materials, characterized in that: The invention comprises a non-standard tool holder (1), a machine tool spindle fixing frame (2), and an ultrasonic vibration chamfering structure (3) connected to the machine tool spindle fixing frame (2): The pull nail at the top end of the non-standard tool handle (1) is connected to the machine tool spindle through a pneumatic clamping device, and the bottom end of the non-standard tool handle (1) is connected to the ultrasonic vibration chamfering structure (3); The ultrasonic vibration chamfering structure (3) comprises a box structure (31), and a connecting transmission member (33) and a vibration chamfering member (32) for ultrasonic vibration chamfering, which are installed inside the box structure (31) and connected via a toothed conveyor belt (34); The vibrating chamfered component (32) comprises a longitudinal amplitude changing rod (321), a transducer (322), a first gear (323) and a first bearing component (324); The longitudinal amplitude rod (321) is connected to a transducer (322), and the transducer (322) comprises four electrode sheets (3221) and four piezoelectric ceramic sheets (3222) alternately connected from top to bottom; The first gear (323) and the first bearing member (324) are sleeved on the longitudinal amplitude changing rod (321), and a wireless transmission inner ring (3211) is provided at the top end of the longitudinal amplitude changing rod (321), and the wireless transmission inner ring (3211) is electrically connected to the electrode sheet (3221); The bottom end of the longitudinal amplitude changing rod (321) passes through the bottom end of the box structure (31) and is connected to the chamfering knife (4); An ultrasonic transmission device (6) connected to an ultrasonic generator (5) is provided in the box structure (31), and the ultrasonic transmission device (6) is arranged on one side of the vibrating chamfered component (32); The vibrating chamfering member (32) and the connecting transmission member (33) are respectively arranged at two ends inside the box structure (31), and the top end of the connecting transmission member (33) is connected to the bottom end of the non-standard tool handle (1). The non-standard tool handle (1) drives the connecting transmission member (33) to drive the toothed conveyor belt (34) to move, thereby driving the vibrating chamfering member (32) to rotate. The bottom end of the vibrating chamfering member (32) is connected to a chamfering knife (4) for chamfering the inner wall of the tubular composite material.

2. The ultrasonic vibration chamfering device for inner wall holes of tubular composite materials according to claim 1, characterized in that: The box structure (31) includes an upper box cover (311) and a lower box cover (312); One end of the upper box cover (311) is provided with a through-hole structure connected to the output end of the non-standard tool handle (1); The lower box cover (312) is provided with a first installation slot structure (3121), a second installation slot structure (3122), and a conveyor belt installation slot structure (3123), thereby forming a block structure (3124) for installing the ultrasonic transmission device (6); Furthermore, the first installation slot structure (3121) and the second installation slot structure (3122) are both connected to the conveyor belt installation slot structure (3123).

3. The ultrasonic vibration chamfering device for inner wall holes of tubular composite materials according to claim 2, characterized in that: The connection transmission member (33) includes a stepped shaft (331), a second gear (332) and a second bearing (333); The second bearing member (333) is identical to the first bearing member (324), and the second gear (332) and the second bearing member (333) are sleeved on the stepped shaft (331), and the second gear (332) is connected to the first gear (323) via a toothed belt (34); The toothed conveyor belt (34) comprises a straight segment (341) and an arc segment (342), and the radius of the circle on which the outer side of the arc segment (342) is located is smaller than the radius of the circle on which the outer wall of the second bearing member (333) is located.

4. The ultrasonic vibration chamfering device for inner wall holes of tubular composite materials according to claim 3, characterized in that: The block structure (3124) is provided with a 1 / 8 annular groove structure (31240); The ultrasonic transmission device (6) includes a 1 / 8 annular ferrite (61) adapted to the 1 / 8 annular groove structure (31240); The 1 / 8 ring ferrite (61) is provided with a mounting groove structure for mounting a 1 / 8 ring wireless transmission coil (62).

5. The ultrasonic vibration chamfering device for inner wall holes of tubular composite materials according to claim 4, characterized in that: The width of the box structure (31) is less than one-third of the diameter of the inner wall of the tubular composite material; The height from the top end surface of the box structure (31) to the bottom end surface of the chamfering knife (4) is less than two-thirds of the diameter of the inner wall of the tubular composite material.

6. A method for chamfering inner wall holes of a tubular composite material by ultrasonic vibration, based on the device for chamfering inner wall holes of a tubular composite material according to any one of claims 1 to 5, characterized in that: The following steps are involved: S1: Mount the tubular composite material to be chamfered on a pre-set fixture with a graduated plate; S2: Connecting the rivet at the top of the non-standard tool holder (1) to the machine tool spindle through a pneumatic clamping device, and connecting the bottom end of the non-standard tool holder (1) to the top end of the connecting transmission member (33); S3: Setting the search frequency and starting the ultrasonic generator (5), transmitting the output of the ultrasonic generator (5) to the wireless transmission inner ring (3211) provided at the top of the longitudinal amplitude rod (321) through the 1 / 8 ring wireless transmission coil (62) in the ultrasonic transmission device (6); The search frequency range is set to 25kHz-35kHz; The output of the ultrasonic generator (5) is transmitted to the transducer (322) via the wireless transmission inner ring (3211), and the transducer (322) generates an amplitude at the top corner of the chamfering knife (4) connected to the longitudinal amplitude rod (321); The amplitude of the chamfering knife (4) at the top corner is 5-8 μm; S4: a procedure for setting the positioning of the chamfering cutter (4) and the center position of each row of inner wall holes on the tubular composite material; After confirming that the chamfering cutter (4) corresponds to the center position of each inner wall hole in the current row based on the positioning program, the spindle speed is set and the machine tool is started, and the machine tool spindle drives the connecting transmission component (33) to rotate relative to the box structure (31) through the non-standard tool holder (1); S5: driving the toothed conveyor belt (34) to move by connecting the transmission member (33), thereby driving the ultrasonic vibration chamfering structure (3) to rotate by the toothed conveyor belt (34), and driving the chamfering knife (4) that generates the amplitude to rotate by the ultrasonic vibration chamfering structure (3), thereby achieving vibration chamfering of the inner wall hole of the tubular composite material; S6: After completing the vibration chamfering of each inner wall hole of the current row on the tubular composite material, the clamp of the indexing plate is rotated to achieve the vibration chamfering of all inner wall holes of the tubular composite material; S7: Turn off the machine tool and the ultrasonic generator (5), and remove the tubular composite material after vibration chamfering.

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