Aluminum piece shaping device

Abstract

The utility model discloses an aluminum piece shaping device which comprises a machine body and a machine body shell, the machine body comprises a power unit arranged in the machine body shell, and the power unit comprises a motor gearbox transmission assembly and an eccentric lifting assembly; the rotary table unit is arranged at the upper end of the machine body shell, and the rotary table unit comprises a rotary table assembly and a gearbox indexing assembly; the die pressing unit is arranged on the machine body shell, and the die pressing unit comprises a die pressing assembly and a lifting transmission assembly; the die pressing unit penetrates through the machine body shell, and the power unit is rotationally connected with the die pressing unit and the rotary disc unit. The aluminum part shaping and demolding device is reasonable in structural design, through the arrangement of the power unit, the mold pressing unit and the rotating disc unit, shaping and demolding of an aluminum part are achieved, manual polishing is not needed, dust cannot be generated, dust potential safety hazards are eliminated, and manpower and time are saved.

Description

Technical Field

[0001] The utility model relates to the field of mechanical processing, in particular to an aluminum part shaping device. Background Art

[0002] Aluminum parts have a wide range of applications, covering many fields such as construction, transportation, electronics, and packaging. For example, in the construction field, aluminum parts are often used to manufacture windows, door frames, ceilings, and exterior wall decorative panels; in the transportation field, aluminum parts are widely used in the manufacture of transportation vehicles such as aviation, automobiles, and trains; in the electronics field, aluminum parts can be used to manufacture electronic components such as capacitors and radiators; in the packaging field, aluminum parts can be used to manufacture aluminum foil packaging, cans, and containers;

[0003] In modern industrial manufacturing, the shaping and polishing of aluminum parts is an important link; however, there are a series of problems in the traditional aluminum polishing process, such as safety hazards caused by dust, environmental pollution, and potential threats to workers' health; in addition, traditional aluminum polishing is inefficient and requires a lot of manpower and time. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide an aluminum part shaping device in view of the current status of the prior art.

[0005] The technical solution adopted by the utility model to solve the above technical problems is: an aluminum shaping device, including a fuselage and a fuselage shell, the fuselage includes:

[0006] A power unit is arranged in the fuselage shell, and the power unit includes a motor gearbox transmission assembly and an eccentric lifting assembly;

[0007] A turntable unit is arranged at the upper end of the fuselage shell, and the turntable unit includes a turntable assembly and a gear box indexing assembly;

[0008] A die unit is arranged on the fuselage shell, and the die unit comprises a die assembly and a lifting transmission assembly;

[0009] The die unit passes through the fuselage shell, and the power unit is rotatably connected with the die unit and the turntable unit respectively.

[0010] Preferably, the eccentric lifting assembly includes a bearing seat assembly, a coupling, a first sprocket, a first transmission shaft, an eccentric rotating block and a linkage rod. The bearing seat assembly includes a first bearing seat and a second bearing seat. The first transmission shaft passes through the first bearing seat and is rotatably connected to the eccentric rotating block. The first sprocket is arranged on the first transmission shaft. The other end of the eccentric rotating block is connected to the linkage rod. Connecting sleeves are respectively arranged at both ends of the linkage rod. A connecting shaft is provided on the connecting sleeve. The eccentric rotating block is rotatably connected to the linkage rod via the connecting shaft.

[0011] Preferably, the motor gearbox transmission assembly includes a motor gearbox and a motor that is transmission-connected to one side of a lower gearbox, a second transmission shaft is arranged on the gearbox, the second transmission shaft passes through both ends of the gearbox, a coupling is arranged on the second transmission shaft, and the second transmission shaft passes through a second bearing seat and is rotationally connected to the first transmission shaft through a coupling.

[0012] Preferably, the gear box indexing assembly includes a indexing gear box, a ratchet, a chain, a paddle assembly and a transmission wheel assembly, the ratchet, paddle assembly and transmission wheel assembly are arranged in the indexing gear box, the paddle assembly includes a first transmission rod, an active paddle and a first gear, the active paddle and the first gear are respectively arranged at two ends of the first transmission rod, the transmission wheel assembly includes a second transmission rod, a second sprocket and a second gear, the second sprocket and the second gear are respectively arranged at two ends of the second transmission rod, the two ends of the second transmission rod pass through the indexing gear box, and the second sprocket is arranged outside the indexing gear box to connect the second transmission rod.

[0013] Preferably, the turntable assembly includes a turntable, a turntable shaft arranged at the lower end of the turntable and a lower mold bushing arranged at the upper end of the turntable. At least one lower mold bushing is arranged on the turntable. The turntable and the ratchet are respectively arranged at both ends of the turntable shaft. The first sprocket and the second sprocket are connected by a chain transmission. The second sprocket drives the second transmission rod to rotate. The second gear drives the first gear through the second transmission rod. The active dial cooperates with the ratchet gear transmission.

[0014] Preferably, the die assembly includes an upper slide, a lower slide, an adjustment hand wheel, a support, a fixed seat, a hand wheel shaft and an upper die block, the hand wheel shaft passes through the upper slide, the support, the lower slide and the fixed seat from top to bottom in sequence, the fixed seat and the support are respectively arranged at the upper and lower ends of the lower slide, and the upper die block and the adjustment hand wheel are respectively connected to the two ends of the hand wheel shaft. Preferably, the lifting transmission assembly includes a sliding rod assembly, a transmission seat, an upper sliding sleeve arranged at the upper end of the fuselage shell and a lower sliding sleeve arranged at the lower end of the fuselage shell, the sliding rod assembly includes a left sliding rod and a right sliding rod, the left sliding rod and the right sliding rod respectively pass through the upper slide, the lower slide, the upper sliding sleeve, the transmission seat and the two ends of the lower sleeve from top to bottom in sequence, the left sliding rod and the right sliding rod penetrate the fuselage shell through the upper sliding sleeve and the lower sliding sleeve, the linkage rod cooperates with the connecting shaft to be connected to the transmission seat, the left sliding rod and the right sliding rod slide in the upper sliding sleeve and the lower sliding sleeve through the transmission seat, and the upper die block corresponds to the lower die bushing.

[0015] Preferably, a control box is provided inside the fuselage shell, and a control switch is provided on the fuselage shell.

[0016] Compared with the prior art, the utility model has the advantages of realizing aluminum part shaping and demoulding by setting a power unit, a die unit and a turntable unit, without the need for manual polishing, without generating dust, eliminating dust safety hazards, and saving manpower and time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0019] Figure 3 It is a schematic diagram of the internal structure of the utility model;

[0020] Figure 4 It is a structural schematic diagram of the power unit of the utility model;

[0021] Figure 5 It is a structural schematic diagram of the turntable unit of the utility model;

[0022] Figure 6 It is a structural schematic diagram of the die pressing unit of the utility model;

[0023] Figure 7 It is a schematic diagram of the exploded structure of the indexing gear box of the utility model.

[0024] Figure numerals: 1, fuselage; 2, fuselage shell; 3, power unit; 4, turntable unit; 5, die unit; 6, eccentric lifting assembly; 7, motor gear box transmission assembly; 8, gear box transmission assembly; 9, turntable assembly; 10, die assembly; 11, lifting transmission assembly; 12, bearing seat assembly; 13, coupling; 14, first sprocket; 15, first transmission shaft; 16, eccentric rotating block; 17, linkage rod; 18, first bearing seat; 19, second bearing seat; 20, connecting sleeve; 21, connecting shaft; 22, motor gear box; 23, motor; 24, second transmission shaft; 25, indexing gear box; 26 , ratchet; 27, chain; 28, dial assembly; 29, transmission wheel assembly; 30, first transmission rod; 31, active dial; 32, first gear; 33, second transmission rod; 34, second sprocket; 35, second gear; 36, turntable; 37, turntable shaft; 38, lower mold bushing; 39, upper slide seat; 40, lower slide seat; 41, adjusting hand wheel; 42, support; 43, fixed seat; 44, hand wheel shaft; 45, upper mold block; 46, sliding rod assembly; 47, transmission seat; 48, upper sliding sleeve; 49, lower sliding sleeve; 50, left sliding rod; 51, right sliding rod; 52, control box; 53, control switch. DETAILED DESCRIPTION

[0025] The following will disclose multiple embodiments of the present invention with drawings. For the purpose of clear description, many practical details will be described together in the following description. However, it should be understood that these practical details should not be used to limit the present invention. In other words, in some embodiments of the present invention, these practical details are not necessary. In addition, in order to simplify the drawings, some conventional structures and components will be depicted in a simple schematic manner in the drawings.

[0026] It should be noted that all directional indications in the embodiments of the present invention, such as up, down, left, right, front, back... are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0027] Moreover, some of the above-mentioned terms may be used to express other meanings besides indicating orientation or positional relationships. For example, the term "on" may also be used to indicate a certain dependency or connection relationship in certain circumstances. A person skilled in the art may understand the specific meanings of these terms in the present utility model according to the specific circumstances.

[0028] In addition, the terms "install", "set", "provided with", "connect", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. The connection methods involved in this article are prior arts, without any improvement, and are all common knowledge of those skilled in the art. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0029] In addition, in the present utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the present utility model. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0030] like Figures 1 to 7As shown, the utility model provides an aluminum shaping device, comprising a fuselage 1 and a fuselage shell 2, wherein the fuselage 1 comprises:

[0031] A power unit 3 is arranged in the fuselage shell 2, and the power unit 3 includes a motor gear box 22, a transmission assembly 7 and an eccentric lifting assembly 6;

[0032] The turntable unit 4 is arranged at the upper end of the body shell 2, and the turntable unit 4 includes a turntable assembly 9 and an indexing gear box 25 and an indexing assembly 8;

[0033] The die unit 4 is arranged on the body shell 2, and the die unit 4 includes a die assembly 10 and a lifting transmission assembly 11;

[0034] The die unit 4 passes through the fuselage shell 2, and the power unit 3 is rotatably connected to the die unit 4 and the turntable unit 4 respectively;

[0035] The power unit 3 drives the turntable unit 4 and the die unit 4 at the same time to realize die shaping of the turntable 36 .

[0036] The eccentric lifting assembly 6 includes a bearing seat assembly 12, a coupling 13, a first sprocket 14, a first transmission shaft 15, an eccentric rotating block 16 and a linkage rod 17. The bearing seat assembly 12 includes a first bearing seat 18 and a second bearing seat 19. The first transmission shaft 15 passes through the first bearing seat 18 and is rotatably connected to the eccentric rotating block 16. The first sprocket 14 is arranged on the first transmission shaft 15. The other end of the eccentric rotating block 16 is connected to the linkage rod 17. Connecting sleeves 20 are respectively arranged at both ends of the linkage rod 17. A connecting shaft 21 is arranged on the connecting sleeve 20. The eccentric rotating block 16 is rotatably connected to the linkage rod 17 through the connecting shaft 21.

[0037] The motor gearbox 22 transmission assembly 7 includes a motor gearbox 22 and a motor 23 that is transmission-connected to one side of a lower indexing gearbox 25, the indexing gearbox 25 is provided with a second transmission shaft 24, the second transmission shaft 24 passes through both ends of the indexing gearbox 25, the second transmission shaft 24 is provided with a coupling 13, the second transmission shaft 24 passes through a second bearing seat 19 and is rotationally connected to the first transmission shaft 15 through the coupling 13;

[0038] The power unit 3 drives the turntable unit 4 and the die unit 4 simultaneously through the eccentric lifting assembly 6 and the gears.

[0039] The indexing assembly 8 of the indexing gear box 25 includes a indexing gear box 25, a ratchet 26, a chain 27, a thumbwheel assembly 28 and a transmission wheel assembly 29, wherein the ratchet 26, the thumbwheel assembly 28 and the transmission wheel assembly 29 are arranged in the indexing gear box 25, the thumbwheel assembly 28 includes a first transmission rod 30, an active thumbwheel 31 and a first gear 32, wherein the active thumbwheel 31 and the first gear 32 are respectively arranged at two ends of the first transmission rod 30, the transmission wheel assembly 29 includes a second transmission rod 33, a second sprocket 34 and a second gear 35, wherein the second sprocket 34 and the second gear 35 are respectively arranged at two ends of the second transmission rod 33, wherein two ends of the second transmission rod 33 pass through the indexing gear box 25, and the second sprocket 34 is arranged outside the indexing gear box 25 and connected to the second transmission rod 33;

[0040] The first transmission rod 30 and the second transmission rod 33 are arranged in an inverted T shape, and the first transmission rod 30 and the second transmission rod 33 cooperate with the first gear 32 and the second gear 35 for gear transmission.

[0041] The turntable assembly 9 includes a turntable 36, a turntable shaft disposed at the lower end of the turntable 36, and a lower die bushing 38 disposed at the upper end of the turntable 36. At least one lower die bushing 38 is arranged on the turntable 36. The turntable 36 and the ratchet 26 are respectively disposed at both ends of the turntable shaft. The first sprocket 14 and the second sprocket 34 are connected by a chain 27. The second sprocket 34 drives the second transmission rod 33 to rotate. The second gear 35 drives the first gear 32 through the second transmission rod 33 for gear transmission. The active dial 31 cooperates with the ratchet 26 for gear transmission.

[0042] The chain 27 drives the indexing gear box 25 to drive the indexing assembly 8, thereby realizing the operation of the turntable assembly 9.

[0043] The die assembly 10 includes an upper slide 39, a lower slide 40, an adjusting hand wheel 41, a support 42, a fixed seat 43, a hand wheel shaft 44 and an upper mold block 45. The hand wheel shaft 44 passes through the upper slide 39, the support 42, the lower slide 40 and the fixed seat 43 from top to bottom. The fixed seat 43 and the support 42 are respectively arranged at the upper and lower ends of the lower slide 40. The upper mold block 45 and the adjusting hand wheel 41 are respectively connected to the two ends of the hand wheel shaft 44.

[0044] The lifting transmission assembly 11 includes a sliding rod assembly 46, a transmission seat 47, an upper sliding sleeve 48 arranged at the upper end of the fuselage shell 2, and a lower sliding sleeve 49 arranged at the lower end of the fuselage shell 2. The sliding rod assembly 46 includes a left sliding rod 50 and a right sliding rod 51. The left sliding rod 50 and the right sliding rod 51 pass through the upper sliding seat 39, the lower sliding seat 40, the upper sliding sleeve 48, the transmission seat 47, and the two ends of the lower sliding sleeve 49 from top to bottom, respectively. The left sliding rod 50 and the right sliding rod 51 pass through the fuselage shell 2 through the upper sliding sleeve 48 and the lower sliding sleeve 49. The linkage rod 17 cooperates with the connecting shaft 21 to be connected with the transmission seat 47. The left sliding rod 50 and the right sliding rod 51 slide in the upper sliding sleeve 48 and the lower sliding sleeve 49 through the transmission seat 47. The upper mold block 45 corresponds to the lower mold bushing 38.

[0045] The lifting transmission assembly 11 is lifted up and down to cooperate with the die assembly 10 to perform die shaping on the aluminum part.

[0046] A control box 52 is disposed inside the body shell 2, and a control switch 53 is disposed on the body shell 2;

[0047] The control box is used to control the operation of the device, and the control switch is used to control the start and stop of the device.

[0048] The upper mold block 45 and the lower mold bushing 38 can be detachably replaced with the upper mold block 45 and the lower mold bushing 38 corresponding to various aluminum parts. The distance between the upper slide 39 and the lower slide 40 can be adjusted by setting the handwheel shaft 44 and the adjusting handwheel 41.

[0049] like Figures 1 to 7As shown, when starting, the motor 23 starts to drive the indexing gear box 25 to rotate, and the second transmission shaft 24 is rotatably connected with the first transmission shaft 15 through the coupling 13, and the second transmission shaft 24 on the indexing gear box 25 drives the first transmission shaft 15 to rotate, thereby driving the eccentric rotating block 16 to eccentrically rotate; under the action of the eccentric rotating block 16, the linkage rod 17 drives the transmission seat 47 to rise and fall, and the transmission seat 47 rises and falls to drive the left sliding rod 50 and the right sliding rod 51 to rise and fall, and the left sliding rod 50 and the right sliding rod 51 drive the die assembly 10 to rise and fall, so that the die unit 4 lifts and lowers the die to realize the shaping and demolding of the aluminum part; at the same time, the second transmission shaft 24 drives the first transmission shaft 15 to rotate, and the first sprocket 14 rotates with the rotation of the first transmission shaft 15, and the first sprocket 14 drives the second sprocket 34 to rotate accordingly through the chain 27, and the second transmission rod 33 rotates and rotates with the second sprocket 34, so that the second transmission shaft 24 drives the first transmission shaft 15 to rotate, and the first sprocket 14 rotates with the rotation of the first transmission shaft 15, and the first sprocket 14 drives the second sprocket 34 to rotate accordingly through the chain 27, and the second transmission rod 33 rotates and rotates with the second sprocket 34, thereby The second transmission rod 33 drives the first gear 32 to rotate, and the first gear 32 drives the first transmission rod 30 to rotate, and the active dial wheel 31 rotates with the rotation of the first transmission rod 30, so that the active dial wheel 31 drives the ratchet wheel 26 to rotate, and the ratchet wheel 26 drives the turntable shaft to rotate, and the turntable 36 rotates with the rotation of the turntable shaft, so that the turntable unit 4 rotates to realize the shaping and demoulding of the aluminum part, and the upper mold block 45 of the die assembly 10 is driven to descend by the lifting transmission assembly 11 to cooperate with the lower mold bushing 38 on the turntable 36 to shape the aluminum part. The lifting transmission assembly 11 drives the die assembly 10 to descend and rise, and the turntable 36 rotates to the unshaped lower mold bushing 38 of the aluminum part, so that the aluminum part is demoulded and taken out; by setting the power unit 3, the die unit 4 and the turntable unit 4, the aluminum part is directly die-formed to realize the shaping and demoulding of the aluminum part, without the need for manual polishing, and no dust is generated, thereby eliminating the dust safety hazard and saving manpower and time.

[0050] In this invention, the power supply device and the control principle are commonly used technical means by the personnel in this field, so they are not described in detail.

[0051] In the description of this specification, reference is made to the terms "one embodiment", "some embodiments", "examples", "specific examples", etc.

[0052] The description of "example" or "some examples" means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0053] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, and bonding in the prior art, which will not be described in detail here.

[0054] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, various changes and variations can be made in the specific implementation methods and application scopes based on the ideas of the present invention. The content of this specification should not be understood as a limitation on the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of the claims of the present invention.

Claims

1. An aluminum shaping device, comprising a fuselage and a fuselage shell, characterized in that: The fuselage comprises: A power unit is arranged in the fuselage shell, and the power unit includes a motor gearbox transmission assembly and an eccentric lifting assembly; A turntable unit is arranged at the upper end of the fuselage shell, and the turntable unit includes a turntable assembly and a gear box indexing assembly; A die unit is arranged on the fuselage shell, and the die unit comprises a die assembly and a lifting transmission assembly; The die unit passes through the fuselage shell, and the power unit is rotatably connected with the die unit and the turntable unit respectively.

2. The aluminum shaping device according to claim 1, characterized in that: The eccentric lifting assembly includes a bearing seat assembly, a coupling, a first sprocket, a first transmission shaft, an eccentric rotating block and a linkage rod. The bearing seat assembly includes a first bearing seat and a second bearing seat. The first transmission shaft passes through the first bearing seat and is rotatably connected to the eccentric rotating block. The first sprocket is arranged on the first transmission shaft. The other end of the eccentric rotating block is connected to the linkage rod. Connecting sleeves are respectively arranged at both ends of the linkage rod. A connecting shaft is arranged on the connecting sleeve. The eccentric rotating block is rotatably connected to the linkage rod via the connecting shaft.

3. The aluminum shaping device according to claim 2, characterized in that: The motor gearbox transmission assembly includes a motor gearbox and a motor that is transmission-connected to one side of a lower gearbox. A second transmission shaft is arranged on the gearbox, and the second transmission shaft passes through both ends of the gearbox. A coupling is arranged on the second transmission shaft, and the second transmission shaft passes through a second bearing seat and is rotationally connected to the first transmission shaft through a coupling.

4. The aluminum shaping device according to claim 3, characterized in that: The gear box indexing assembly includes a indexing gear box, a ratchet, a chain, a paddle assembly and a transmission wheel assembly, the ratchet, the paddle assembly and the transmission wheel assembly are arranged in the indexing gear box, the paddle assembly includes a first transmission rod, an active paddle and a first gear, the active paddle and the first gear are respectively arranged at two ends of the first transmission rod, the transmission wheel assembly includes a second transmission rod, a second sprocket and a second gear, the second sprocket and the second gear are respectively arranged at two ends of the second transmission rod, the two ends of the second transmission rod pass through the indexing gear box, and the second sprocket is arranged outside the indexing gear box to connect the second transmission rod.

5. The aluminum shaping device according to claim 4, characterized in that: The turntable assembly includes a turntable, a turntable shaft arranged at the lower end of the turntable and a lower mold bushing arranged at the upper end of the turntable. At least one lower mold bushing is arranged on the turntable. The turntable and the ratchet are respectively arranged at two ends of the turntable shaft. The first sprocket and the second sprocket are connected by a chain transmission. The second sprocket drives the second transmission rod to rotate. The second gear drives the first gear through the second transmission rod. The active dial cooperates with the ratchet gear transmission.

6. The aluminum shaping device according to claim 5, characterized in that: The die assembly includes an upper slide, a lower slide, an adjusting hand wheel, a support, a fixed seat, a hand wheel shaft and an upper die block. The hand wheel shaft passes through the upper slide, the support, the lower slide and the fixed seat from top to bottom. The fixed seat and the support are respectively arranged at the upper and lower ends of the lower slide, and the upper die block and the adjusting hand wheel are respectively connected to the two ends of the hand wheel shaft.

7. The aluminum shaping device according to claim 6, characterized in that: The lifting transmission assembly includes a sliding rod assembly, a transmission seat, an upper sliding sleeve arranged at the upper end of a fuselage shell, and a lower sliding sleeve arranged at the lower end of the fuselage shell. The sliding rod assembly includes a left sliding rod and a right sliding rod, and the left sliding rod and the right sliding rod respectively pass through the upper sliding seat, the lower sliding seat, the upper sliding sleeve, the transmission seat, and the two ends of the lower sleeve from top to bottom. The left sliding rod and the right sliding rod penetrate the fuselage shell through the upper sliding sleeve and the lower sleeve, and the linkage rod cooperates with the connecting shaft to be connected with the transmission seat. The left sliding rod and the right sliding rod slide in the upper sliding sleeve and the lower sleeve through the transmission seat, and the upper mold block corresponds to the lower mold bushing.

8. The aluminum shaping device according to claim 7, characterized in that: A control box is arranged inside the fuselage, and a control switch is arranged on the fuselage shell.

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