Swing head of five-axis gantry encircling locking structure

Abstract

The invention discloses a five-axis gantry embracing locking structure swing head, and relates to the technical field of swing heads, the swing head comprises an A-axis shell, a rotating cavity is arranged at the bottom of the A-axis shell, a main shaft sleeve is rotatably connected in the rotating cavity, a motor is installed on the side wall of the A-axis shell, the output end of the motor is fixedly connected with an A-axis penetrating through the rotating cavity, and the main shaft sleeve is fixedly arranged on the A-axis. Through cooperative arrangement of the first locking assembly and the second locking assembly, conversion can be automatically conducted according to the abrasion value, the second locking assembly locks the A shaft, manual regular inspection and judgment on whether abrasion exceeds the standard or not are not needed, a brake pad can be replaced after machining of a workpiece being machined is completed, and the machining efficiency is improved. Compared with the prior art, errors and hysteresis of manual inspection are avoided, maintenance can be carried out on the basis of an actual state instead of a fixed period, maintenance efficiency is improved, unnecessary shutdown is reduced, and then the problems that due to excessive abrasion of the brake pad, locking force is suddenly insufficient and locking precision is lowered in the machining process are effectively prevented.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of swing head, in particular to a five-axis gantry ring locking structure swing head. BACKGROUND

[0002] Five-axis gantry machining tool is characterized by flexible automation, excellent and stable precision, agile and diversified functions, etc. in high-end industry fields such as aerospace, high-precision equipment and automatic integrated products. Five-axis linkage double swing head is an important component of five-axis gantry machining tool.

[0003] In the Chinese patent with publication number CN210633008U, an AC five-axis linkage double swing head is disclosed, which comprises an A-axis shell, a C-axis flange plate, a C-axis connecting disc, a mounting flange and a C-axis composite motor. The C-axis composite motor is fixed on the first mounting flange, the first mounting flange is fixed on the upper end of the C-axis connecting disc, the lower end of the C-axis connecting disc is sleeved on the C-axis flange plate, the C-axis flange plate is fixedly connected with the output shaft of the C-axis composite motor, and the C-axis flange plate is fixed on the upper end of the A-axis shell. The main shaft is fixed in the main shaft sleeve in the middle part of the A-axis shell. The A-axis composite motor and the C-axis composite motor in the AC five-axis linkage double swing head are both speed reducer and motor integrated type A-axis composite motor and C-axis composite motor, so the volume of the AC five-axis linkage double swing head is reduced, thereby reducing the inertia of the moving parts and improving the dynamic response and precision.

[0004] Although the above-mentioned patent solves some problems of A-axis locking to some extent, there are still the following deficiencies: In the above-mentioned application, when the A-axis is locked, only the A-axis brake disc is in contact with the double-piston caliper to lock the A-axis. However, this locking method is affected by the wear condition of the A-axis brake disc and the double-piston caliper. Since there is a wear threshold for the brake disc during use, after a long time of use, wear occurs between the A-axis brake disc and the double-piston caliper. When the brake disc exceeds the wear threshold, the locking precision is poor, so manual inspection is required regularly. However, the wear threshold of the brake disc is subject to human judgment, which may be biased, resulting in untimely replacement. For example, the wear value of the brake disc before processing is within the normal use value, but during continuous processing of workpieces, the wear of the brake disc may be lower than the wear threshold. Since the brake disc cannot be replaced during processing, the locking precision of the brake disc is reduced, resulting in unstable locking, affecting the positioning accuracy of the A-axis during operation, and reducing the precision of the workpiece being processed, thereby reducing the quality of the finished workpiece. SUMMARY

[0005] To solve the above-mentioned technical problems, the present application provides a five-axis gantry ring locking structure swing head.

[0006] The technical scheme is as follows: A five-axis gantry ring locking structure swing head, including an A-axis shell, the bottom of the A-axis shell is provided with a rotating cavity, a main shaft sleeve is rotatably installed in the rotating cavity, a motor is installed on the side wall of the A-axis shell, an A-axis penetrating the rotating cavity is fixedly connected to the output end of the motor, and the main shaft sleeve is fixedly arranged on the A-axis; characterized in that a cylinder body is fixedly connected to one side wall of the rotating cavity, a first locking assembly is arranged in the cylinder body, the first locking assembly comprises a brake disc fixedly arranged at one end of the inner wall of the cylinder body and a brake moving disc fixedly arranged on the A-axis and matched with the brake disc; The brake moving disc is provided with a second locking assembly on the side away from the brake disc, the second locking assembly comprises a plurality of clamping blocks slidably arranged on the side wall of the brake moving disc and a driving member arranged in the cylinder body, a sealed cavity is formed between the driving member and the brake moving disc, the sealed cavity is filled with hydraulic oil, and a hydraulic device is connected to the outer wall of the cylinder body at the end away from the brake disc.

[0007] Further, the brake moving disc comprises a brake pad, a fixed disc, a sealing disc and a connecting disc which are sequentially detachably arranged, the fixed disc is clamped and connected with an annular oil channel arranged on the side wall corresponding to the brake pad, and a plurality of oil outlet channels recessed inward are arranged on the brake pad corresponding to the oil channel.

[0008] Further, a plurality of oil inlet holes communicating with the oil channel are connected to the oil channel, an extension pipe matched with the oil inlet hole is connected to the side wall of the connecting disc corresponding to the oil channel, and the extension pipe is arranged in communication with the sealed cavity.

[0009] Further, a ring groove and a plurality of through holes are arranged on the side wall of the connecting disc corresponding to the fixed disc, a gas channel is arranged in communication between the through holes and the ring groove, the sealing disc is arranged between the fixed disc and the connecting disc, and the sealing disc forms a seal on one side of the ring groove and the oil inlet hole.

[0010] Further, the clamping block has an extension block slidably arranged in the through hole, and a piston matched with the gas channel is fixedly connected to the extension block corresponding to the ring groove.

[0011] Further, the clamping block has an extension block slidably arranged in the through hole, and a piston matched with the gas channel is fixedly connected to the extension block corresponding to the ring groove.

[0012] Further, the extension portion has a convex portion away from the first tapered portion, a second tapered portion is formed between the convex portion and the extension portion, and a second matching portion matched with the second tapered portion is formed on the inner wall of the mounting cavity away from the first matching portion.

[0013] Further, the hydraulic device comprises an oil tank arranged on the cylinder body, and an oil delivery pipe is arranged on the oil tank and communicated with one end of the cylinder body From the above, the beneficial effects of the five-axis gantry embracing locking structure swing head of the present application are as follows: Through the cooperation of the first locking assembly and the second locking assembly, the second locking assembly can be automatically switched to lock the A shaft according to the wear value, without relying on manual regular inspection and judgment of whether the wear exceeds the standard, and the replacement of the brake pad can be performed after the workpiece being processed is completed, avoiding the errors and hysteresis of manual inspection, so that the maintenance can be based on the actual state, rather than a fixed period, improving the maintenance efficiency, reducing unnecessary downtime, and effectively preventing the problems of insufficient locking force and decreased locking precision caused by excessive wear of the brake pad during the processing.

[0014] Through the setting of the hydraulic oil filled between the brake moving disc and the driving piece, and the oil channel of the annular setting of the fixed disc and the brake pad corresponding to the side wall, the hydraulic oil can perform heat transfer to the brake moving disc, reducing the heat generated when the brake disc and the brake moving disc contact.

[0015] When the brake disc and the brake pad generate heat through friction, the hydraulic oil between the driving piece and the brake moving disc slightly expands, pushing the driving piece to move backward, thereby pressing the clamp block to contact the A shaft to assist in locking the A shaft. Since the motor will have some inertia after stopping rotating, through the cooperation of the brake disc and the brake moving disc and the clamp block and the driving piece, the A shaft can be stopped more quickly and stably. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic view of the overall components of the present application; Figure 2 It is a sectional three-dimensional schematic view of the overall components of the present application; Figure 3 It is a sectional view of the first locking assembly of the present application; Figure 4 It is an exploded view of the first locking assembly and the second locking assembly of the present application; Figure 5 It is a schematic view of the fixed disc structure of the present application; Figure 6 It is a schematic view of the connecting disc structure of the present application; Figure 7 It is a schematic view of the clamp block structure of the present application; Figure 8 It is a sectional view of the driving piece of the present application.

[0017] Among them, the reference signs in the present application are: 110, A shaft housing; 120, main shaft sleeve; 210, motor; 220, cylinder; 330, hydraulic device; 410, brake pad; 420, fixed disc; 430, connecting disc; 460, sealing disc; 510, oil channel; 520, oil inlet hole; 610, ring groove; 620, through hole; 630, air channel; 640, extension pipe; 650, extension block; 660, piston; 710, extension; 720, first tapered portion; 730, convex portion; 810, mounting cavity; 820, first matching portion; 830, second matching portion; First locking assembly: 310, brake disc; 320, brake moving disc; Second locking assembly: 440, clamping block; 450, driving piece. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, and not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0019] The embodiments provided by the present application will be described in detail below: As Figures 1 to 3 shown, a five-axis gantry embracing locking structure swing head includes an A shaft housing 110, the bottom of the A shaft housing 110 is provided with a rotating cavity, a main shaft sleeve 120 is rotatably installed in the rotating cavity, a motor 210 is installed on the side wall of the A shaft housing 110, an A shaft penetrating the rotating cavity is fixedly connected to the output end of the motor 210, and the main shaft sleeve 120 is fixedly arranged on the A shaft. Its characterized in that a cylinder 220 is fixedly connected to one side wall of the rotating cavity, the cylinder 220 is internally provided with a first locking assembly, the first locking assembly includes a brake disc 310 fixedly arranged at one end of the inner wall of the cylinder 220, and a brake moving disc 320 fixedly arranged on the A shaft and matched with the brake disc 310. The brake moving disc 320 is provided with a second locking assembly on the side away from the brake disc 310, the second locking assembly includes a plurality of clamping blocks 440 slidably arranged on the side wall of the brake moving disc 320 and a driving piece 450 arranged in the cylinder 220, a sealing cavity is formed between the driving piece 450 and the brake moving disc 320, the sealing cavity is filled with hydraulic oil, and the outer wall of the cylinder 220 is connected with a hydraulic device 330 at the end away from the brake disc 310.

[0020] It should be noted that, when the brake disc 320 wear value is greater than or equal to the wear value threshold, the hydraulic device 340 is used to drive the driving member 450 to realize the locking or unlocking between the brake disc 320 and the brake disc 310; when the brake disc 320 wear value is less than the wear value threshold, the hydraulic device 340 is used to drive the driving member 450 to realize the locking or unlocking between the clamp block 440 and the A shaft.

[0021] It should be noted that the driving member 450 and the brake disc 320 form a sealed cavity therebetween, wherein the driving member 450 and the brake disc 320 are connected with sealing rings on the outer walls in contact with the cylinder body 220, and the sealed cavity is filled with hydraulic oil, and the hydraulic oil has incompressibility in the closed cavity, when the hydraulic device 340 is pressurized, the pressure is transmitted to the brake disc 320 through the hydraulic oil, realizing the synchronous movement of the two, that is, the principle of hydraulic coupling, which is a prior art and will not be repeated here.

[0022] It should be noted that the bottom of the main shaft sleeve 120 can be installed with a drill bit, a milling cutter and other machining tools.

[0023] Among them, the driving member 450 is formed between the side away from the brake disc 310 and the cylinder body 220 and forms a driving cavity cooperating with the hydraulic device 340, and the driving cavity is also filled with hydraulic oil.

[0024] The brake disc 320 includes a brake pad 410, a fixed disc 420, a sealing disc 460 and a connecting disc 430 which are sequentially detachably arranged, the fixed disc 420 is clamped and connected with the annularly arranged oil channel 510 at the side wall corresponding to the brake pad 410, and a plurality of oil outlet channels are formed in the brake pad 410 corresponding to the oil channel 510.

[0025] It can be understood that, since the brake disc 320 and the driving member 450 are filled with hydraulic oil, the fixed disc 420 is clamped and connected with the annularly arranged oil channel 510 at the side wall corresponding to the brake pad 410, so that the hydraulic oil can perform heat transfer to the brake disc 320, reducing the heat generated when the brake disc 310 and the brake disc 320 are in contact.

[0026] It should be noted that the brake pad 410, the fixed disc 420, the sealing disc 460 and the connecting disc 430 are connected by high-strength bolts, wherein the protruding part of the high-strength bolt at one end of the brake pad 410 is less than the thickness of the wear threshold of the brake pad 410, which is a prior art and will not be repeated here.

[0027] The oil channel 510 is connected with a plurality of oil inlet holes 520 communicating with the oil channel 510, the side wall of the connecting disc 430 is connected with an extension pipe 640 cooperating with the oil inlet hole 520 at the position corresponding to the oil channel 510, and the extension pipe 640 is communicated with the sealed cavity.

[0028] It should be noted that the extension pipe 640 directly communicates with the oil inlet hole 520 through the sealing disc 460, so that the hydraulic oil does not contact the sealing disc 460, avoiding the influence of the hydraulic oil on the sealing between the sealing disc 460 and the connecting disc 430 and the fixing disc 420.

[0029] Specifically, when the wear value of the brake pad 410 is greater than or equal to the wear value threshold, the hydraulic device 340 pressurizes the hydraulic oil in the driving cavity, and the hydraulic oil drives the driving part 450 to move towards the brake disc 310. Since the hydraulic oil cannot be compressed, the sealing cavity between the driving part 450 and the brake disc 320 is also filled with hydraulic oil, and the movement of the driving part 450 will synchronously drive the brake disc 320 to move. Under the continuous pressurization of the hydraulic device 340, the brake pad 410 on the brake disc 320 is in contact with the brake disc 310, and the A shaft on the brake disc 320 is locked; Conversely, when the A shaft does not need to be locked, the hydraulic device 340 is depressurized and retracted, so that the driving part 450 drives the brake disc 320 away from the brake disc 310 to release the lock.

[0030] When the wear value of the brake pad 410 is less than the wear value threshold during processing, the A shaft is locked. Since the brake pad 410 corresponds to a plurality of inwardly recessed oil outlet channels at the connection position of the oil channel 510, and the oil channel 510 is in communication with the sealing cavity through the extension pipe 640 on the side wall of the connecting disc 430, when the wear value of the brake pad 410 is less than the wear value threshold, the brake pad 410 is in communication with the oil outlet channel. At this time, the oil outlet channel will guide the hydraulic oil in the oil channel 510 out, that is, the hydraulic oil in the sealing cavity is discharged into the brake disc 310 and the brake disc 320, so that the driving part 450 and the brake disc 320 are no longer in a sealed state, and the brake disc 320 will not be driven to move when the driving part 450 moves. When the driving part 450 moves, the first matching part 820 in the driving part 450 will be in contact with the first tapered part 720 on the clamp block 440, and the tightening of the clamp block 440 will make the contact part of the clamp block 440 in contact with the A shaft to lock the A shaft. The second locking assembly 330 can automatically convert the A shaft locking according to the wear value, without relying on artificial periodic inspection and judgment of whether the wear exceeds the standard. The brake pad 410 can be replaced after the workpiece being processed is completed, avoiding the error and hysteresis of artificial inspection, so that maintenance can be based on the actual state rather than a fixed period, improving the maintenance efficiency, reducing unnecessary downtime, and effectively preventing the problems of insufficient locking force and decreased locking precision caused by excessive wear of the brake pad 410 during processing.

[0031] It can be understood that when the hydraulic device 340 is at a normal value of the pressure value of the hydraulic oil in the driving cavity, the wear value of the brake pad 410 is greater than or equal to the wear threshold value, and when the hydraulic device 340 is greater than the normal value of the pressure value of the hydraulic oil in the driving cavity, the wear value of the brake pad 410 is less than the wear threshold value, and the brake pad 410 needs to be replaced. The operator can judge the wear value of the brake pad 410 by observing the pressure value, which is simple and intuitive, and does not need to disassemble the machine. The alarm device can also be set to monitor the pressure value. When the pressure value is normal, the alarm device does not alarm, and when the pressure value is greater than the normal value, the alarm device alarms to prompt the operator.

[0032] In addition, the hydraulic oil flowing between the brake disc 310 and the brake disc 320 can form a gap between the brake disc 310 and the brake disc 320, so as to avoid the brake disc 320 moving to the brake disc 310 and causing friction damage to the high-strength bolts between the brake disc 310 and the brake disc 320, thereby affecting the normal operation of the connecting disc 430.

[0033] As shown in Figure 6 The connecting disc 430 and the fixed disc 420 are provided with a ring groove 610 and a plurality of through holes 620 on the side wall corresponding to one side of the fixed disc 420, and the through holes 620 and the ring groove 610 are provided with a communication gas channel 630. The sealing disc 460 is arranged between the fixed disc 420 and the connecting disc 430, and is used to seal the ring groove 610 and one side of the oil inlet hole 520.

[0034] It should be noted that the separate arrangement of the connecting disc 430 and the fixed disc 420 not only facilitates the manufacture of the connecting disc 430 and the fixed disc 420, but also enables single replacement when the connecting disc 430 and the fixed disc 420 are damaged, thereby saving costs.

[0035] The clamping block 440 has an extension block 650 slidingly arranged in the through hole 620, and the extension block 650 is fixedly connected with a piston 660 matched with the gas channel 630 at a position corresponding to the ring groove 610.

[0036] It should be noted that the height of the through hole 620 is greater than or equal to the height of the extension block 650 and the piston 660, which facilitates the installation of the piston 660 into the gas channel 630.

[0037] The extension part 710 is extended on the side wall away from the connecting disc 430, and a fitting part matched with the outer wall of the A shaft is formed at the bottom wall of the extension part 710. The driving member 450 is slidably arranged on the plurality of clamping blocks 440. The extension part 710 has a first tapered part 720 obliquely arranged towards the extension block 650 at the top wall. The driving member 450 has a mounting cavity 810 corresponding to the extension part 710. The first matching part 820 matched with the extension part 710 is formed at the inner wall of the mounting cavity 810 close to the clamping block 440. The mounting part matched with the A shaft is formed at the end of the driving member 450 away from the clamping block 440.

[0038] It should be noted that the sealing disc 460 is arranged between the fixed disc 420 and the connecting disc 430, so that the sealing disc 460 can form a sealed cavity for the annular groove 610. The inert gas is filled in the sealed cavity, so that the extension part 710 of the clamping block 440 is always not in contact with the A shaft.

[0039] Specifically, after the driving member 450 is mounted on the plurality of clamping blocks 440, the piston 660 on the clamping block 440 is pressed to a certain position away from the A shaft. When the wear value of the brake pad 410 is less than the wear value threshold during the machining process, the hydraulic device 340 pressurizes the hydraulic oil in the driving cavity. The hydraulic oil drives the driving member 450 to move towards the brake disc 310 and contacts the clamping block 440 to press the clamping block 440, so that the piston 660 compresses the inert gas in the sealed cavity, so that the fitting part of the extension part 710 on the clamping block 440 is in contact with the A shaft. When the A shaft is locked, the hydraulic device 340 is de-energized to retract, so that the driving member 450 is away from the brake disc 320 to release the locking of the A shaft. At this time, the compressed inert gas is released, and the piston 660 on the clamping block 440 is pushed back to the original position, that is, the clamping block 440 is away from the A shaft to a certain position. The function of temporary locking can be realized, so that the equipment can complete the machining of the workpiece being machined, reduce unnecessary downtime, and effectively prevent the problems of insufficient locking force and reduced locking precision caused by excessive wear of the brake pad 410 during the machining process.

[0040] The extension part 710 has a convex part 730 away from the first tapered part 720. The second tapered part is formed between the convex part 730 and the extension part 710. The second matching part 830 matched with the second tapered part is formed at the inner wall of the mounting cavity 810 away from the first matching part 820.

[0041] It should be noted that the second tapered part and the convex part 730 are arranged, so that the driving member 450 can be limited in the A shaft axis direction when the driving member 450 is mounted on the plurality of clamping blocks 440.

[0042] Specifically, when the brake disc 310 and the brake pad 410 generate heat by friction, the hydraulic oil between the driving member 450 and the brake disc 320 is slightly expanded, pushing the driving member 450 to move backward, thereby pressing the clamp block 440 to contact the A shaft to assist the locking of the A shaft. Since there is a certain inertia after the motor stops rotating, through the cooperation of the brake disc and the brake disc and the clamp block and the driving member, the A shaft can be stopped more quickly and stably.

[0043] The hydraulic device 330 includes an oil tank arranged on the cylinder body 220, and the oil tank is provided with an oil delivery pipe in communication with one end of the cylinder body 220.

[0044] It should be noted that the hydraulic drive device is a hydraulic power unit, which includes a hydraulic pump, a driving motor and a pressure control valve, and is used to input hydraulic oil with a preset pressure into the fixed cylinder body 220.

[0045] It is easy to understand that the person skilled in the art can combine, split, recombine, etc. the embodiments of the present application on the basis of one or more embodiments provided by the present application to obtain other embodiments, and these embodiments do not exceed the protection scope of the present application.

[0046] The above describes the present application and its embodiments in a schematic manner, and the description is not restrictive, and the embodiments shown are only part of the embodiments of the present application, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired thereby, without departing from the spirit of the present application, without creative design, similar structural modes and embodiments to the technical solutions can be obtained, which should all belong to the protection scope of the present application.

Claims

1. A five-axis gantry ring locking structure swing head, comprising an A-axis shell (110), the bottom of the A-axis shell (110) is provided with a rotating cavity, a main shaft sleeve (120) is rotatably installed in the rotating cavity, a motor (210) is installed on the side wall of the A-axis shell (110), an A-axis penetrating the rotating cavity is fixedly connected to the output end of the motor (210), and the main shaft sleeve (120) is fixedly arranged on the A-axis, characterized in that, The cylinder (220) is fixedly connected to one side wall of the rotating cavity, and a first locking assembly is arranged in the cylinder (220). The first locking assembly comprises a brake disc (310) fixed to one end of the inner wall of the cylinder (220) and a brake moving disc (320) fixed to the A shaft and matched with the brake disc (310); The second locking assembly is arranged on the side, away from the brake disc (310), of the brake moving disc (320). The second locking assembly comprises a plurality of clamping blocks (440) slidably arranged on the side wall of the brake moving disc (320) and a driving member (450) arranged in the cylinder (220). A sealed cavity is formed between the driving member (450) and the brake moving disc (320), and the sealed cavity is filled with hydraulic oil. A hydraulic device (330) is connected to the outer wall of the cylinder (220) at the end, away from the brake disc (310).

2. The five-axis gantry ring embrace locking structure swing head according to claim 1, characterized in that, The brake moving disc (320) comprises a brake pad (410), a fixed disc (420), a sealing disc (460) and a connecting disc (430) arranged in sequence and detachably. The fixed disc (420) is clamped and connected with an annular oil channel (510) at the side wall corresponding to the brake pad (410). A plurality of oil outlet channels are formed in the brake pad (410) corresponding to the oil channel (510).

3. The five-axis gantry embrace locking structure swing head according to claim 2, characterized in that, A plurality of oil inlet holes (520) are connected to the oil channel (510). An extension pipe (640) is connected to the side wall of the connecting disc (430) corresponding to the oil channel (510) and matched with the oil inlet hole (520). The extension pipe (640) is arranged in communication with the sealed cavity.

4. The five-axis gantry embrace locking structure swing head according to claim 2, characterized in that, A ring groove (610) and a plurality of through holes (620) are formed in the side wall of the connecting disc (430) corresponding to the fixed disc (420). The through holes (620) and the ring groove (610) are both provided with a gas channel (630) in communication. The sealing disc (460) is arranged between the fixed disc (420) and the connecting disc (430) to form a seal on one side of the ring groove (610) and the oil inlet hole (520).

5. The five-axis gantry embrace locking structure swing head according to claim 4, characterized in that, The clamping block (440) has an extension block (650) slidably arranged in the through hole (620). The extension block (650) is fixedly connected with a piston (660) matched with the gas channel (630) at the corresponding position of the ring groove (610).

6. The five-axis gantry embrace locking structure swing head according to claim 5, characterized in that, The clamping block (440) has an extension block (650) slidably arranged in the through hole (620). The extension block (650) is fixedly connected with a piston (660) matched with the gas channel (630) at the corresponding position of the ring groove (610).

7. The five-axis gantry embrace locking structure swing head according to claim 6, characterized in that, The extension (710) has a convex part (730) at one end away from the first taper part (720), a second taper part is formed between the convex part (730) and the extension (710), and the mounting cavity (810) is formed with a second matching part (830) on the inner wall at one end away from the first matching part (820).

8. The five-axis gantry wrap clamping structure swing head according to claim 1, characterized in that, The hydraulic device (330) comprises an oil tank arranged on the cylinder body (220), and the oil tank is provided with an oil delivery pipe in communication with one end of the cylinder body (220).

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