Porous machining equipment for side armrest support of aero seat

Abstract

The invention relates to the technical field of aero seat machining, in particular to aero seat side armrest support multi-hole machining equipment which comprises a machine box and a rotary disc arranged at the top of the machine box, a rotating mechanism is arranged on the machine box and is in linkage with the rotary disc, and a plurality of station grooves are formed in the rotary disc along the circumference array of the axis of the rotary disc. A placing box is arranged in the station groove in a sliding fit mode, an inner supporting mechanism is arranged on the placing box, a push plate mechanism and a locking mechanism which are matched with the placing box are arranged on the machine box, and the locking mechanism is in driving connection with the inner supporting mechanism. A positioning body is arranged on the case, the turntable is rotationally arranged on the positioning body, and an unlocking block matched with the locking mechanism is arranged on the positioning body. Through cooperative arrangement of the rotating disc and the multi-station groove, circulating line production of feeding, machining and discharging is achieved, machining continuity is guaranteed, and the equipment utilization rate and production efficiency are greatly improved; and by arranging the multi-drill-bit drilling machine, multi-hole synchronous machining is achieved, the single-piece beat efficiency is improved, and the working efficiency is further improved.

Description

Technical Field

[0001] This invention relates to the field of aircraft seat processing technology, and specifically to a multi-hole processing device for aircraft seat side armrest brackets. Background Technology

[0002] In the field of air passenger transport, most of the activities of passengers (including sitting, resting, eating and entertainment) are completed within the seat space. Therefore, the ergonomic design and comfort of the seat directly affect the passenger's travel experience and satisfaction. Against this background, the processing precision and process efficiency of the seat armrests have become key links in seat manufacturing.

[0003] Traditional handrail drilling processes typically use a single drill bit to drill multiple holes in the handrail components. After completing the machining of one hole, the drill bit needs to be repositioned or the workpiece position needs to be manually adjusted to machine subsequent holes. This results in a large amount of repetitive positioning and clamping time in the production process. This intermittent machining method not only increases auxiliary operation time but also significantly extends the processing cycle, thus restricting the overall production pace and reducing the overall efficiency of the equipment.

[0004] In order to overcome the shortcomings of the prior art, the present invention provides a multi-hole processing device for the side armrest bracket of an aircraft seat to solve the above problems.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0006] A multi-hole processing device for side armrest brackets of aircraft seats includes a chassis and a turntable mounted on the top of the chassis. The chassis is equipped with a rotating mechanism that is linked to the turntable. Several work station slots are arranged in a circular array along the axis of the turntable. Placement boxes are slidably fitted in the work station slots. The placement boxes are equipped with an inner support mechanism. The inner support mechanism can prevent local deformation of the side wall of the armrest bracket during drilling and avoid hole diameter deviation, increased burrs, or abnormal tool wear caused by workpiece deformation. The chassis is equipped with a push plate mechanism and a locking mechanism that match the placement box. The locking mechanism is drivenly connected to the inner support mechanism.

[0007] The machine housing is equipped with a positioning body, and the turntable is rotatably mounted on the positioning body. The positioning body is equipped with an unlocking block that matches the locking mechanism. The positioning body is equipped with an air supply mechanism and a multi-bit drilling machine. The rotating mechanism is driven and connected to the air supply mechanism. The multi-bit drilling machine is equipped with a pressure relief mechanism that matches its drill bit. The pressure relief mechanism is fluidly connected to the output of the air supply mechanism, and the output of the pressure relief mechanism is set towards the drill bit.

[0008] Preferably, the top of the workstation slot is provided with a limiting part, which is used to limit the top of the handrail bracket.

[0009] Preferably, the internal support mechanism includes a movable groove on one side of the placement box, a support block slidably connected in the movable groove, and an elastic tension spring between the placement box and the support block; when the support block extends out of the movable groove, its front end enters the interior of the handrail bracket.

[0010] Preferably, the locking mechanism includes a guide groove formed on the side wall of the workstation slot, a one-way locking block is slidably fitted in the guide groove, and a first compression spring is installed between the one-way locking block and the inner wall of the guide groove; when the movable slot corresponds to the one-way locking block, the first compression spring pushes the one-way locking block out and enters the interior of the movable slot, thereby pushing out the support block in the movable slot.

[0011] Preferably, the top of the one-way locking block is provided with a trigger body, and a clearance groove is provided on the turntable. The top of the trigger body passes through the clearance groove and matches the top of the unlocking block. When the unlocking block abuts against the trigger body, the trigger body slides along the clearance groove, causing the one-way locking block to be retracted into the guide groove.

[0012] Preferably, the push plate mechanism includes an installation groove formed on the inner wall of the workstation slot, a second compression spring installed in the installation groove, a push plate slidably fitted in the workstation slot, and the back of the push plate being fixedly connected to the other end of the second compression spring; the push plate mechanism is used to push the placement box out of the workstation slot, so that the operator can quickly take out the handrail bracket.

[0013] Preferably, the rotating mechanism includes a motor installed in the housing, an internal gear ring coaxially connected to the bottom of the turntable, a central gear and a transmission gear rotatably connected to the positioning body, both the internal gear ring and the central gear meshing with the transmission gear, and the transmission gear being coaxially and fixedly connected to the output part of the motor; when the motor starts, it drives the transmission gear to rotate, causing the internal gear ring and the central gear to rotate.

[0014] Preferably, the pressure relief mechanism includes a pressure relief cylinder disposed on the top of the drill bit, the main shaft of the drill bit and the pressure relief cylinder are slidably connected through it, a first piston is installed on the main shaft located inside the pressure relief cylinder, the top of the pressure relief cylinder is provided with an air inlet and a pressure relief valve, the output part of the pressure relief valve is provided with a nozzle, and the air outlet direction of the nozzle is set towards the drill bit; when the air pressure in the pressure relief cylinder reaches the opening set value of the pressure relief valve, the pressure relief valve automatically opens to release air.

[0015] Preferably, the output section of the multi-bit drilling rig is provided with a sliding sleeve, which slides in conjunction with the top end of the spindle.

[0016] Preferably, the air supply mechanism includes an air cylinder fixed on the positioning body, a second piston slidingly fitted inside the air cylinder, a lifting unit installed at the bottom of the second piston, the lifting unit being linked with the central gear, and an inlet one-way valve and an outlet one-way valve provided at the top of the air cylinder, the output end of the outlet one-way valve being fluidly connected to the air inlet of multiple pressure relief cylinders through a diversion pipe.

[0017] The lifting unit is a ball screw module, which consists of a reciprocating screw and a ball lifting seat. The reciprocating screw is coaxially fixed on the central gear, and the ball lifting seat is installed at the bottom of the second piston. When the central gear rotates, the reciprocating screw drives the ball lifting seat to repeatedly rise and fall, and the second piston performs reciprocating motion to realize the gas injection operation into the pressure relief cylinder.

[0018] The beneficial effects of this invention are as follows:

[0019] 1. This invention achieves a continuous flow of material loading, processing, and unloading through the combination of a turntable and a multi-station slot, ensuring processing continuity and greatly improving equipment utilization and production efficiency. Furthermore, by setting up a multi-drill rig, this invention achieves simultaneous processing of multiple holes, improving the single-piece cycle efficiency and further enhancing work efficiency.

[0020] 2. When feeding materials, the present invention can quickly lock the handrail bracket, which is highly practical. At the same time, the support block automatically extends into the handrail bracket to form internal support. This design can prevent local deformation of the side wall of the handrail bracket during drilling, and avoid hole diameter deviation, increased burrs or abnormal tool wear caused by workpiece deformation, thereby improving the reliability and processing quality of the device.

[0021] 3. During the use of this invention, when the processed workpiece is rotated to the unloading position, the corresponding placement box automatically unlocks, and the push plate automatically pushes the placement box out of the workstation slot, realizing the automatic ejection of the workpiece, which makes it easy for the operator to quickly pick up the workpiece, improving work efficiency and ease of use.

[0022] 4. During the use of this invention, when the drilling pressure on any drill bit increases, the pressure relief valve automatically opens to release air, thereby keeping the spindle feed force within a safe range, achieving overload protection, and effectively preventing drill bit damage or irreversible deformation of the workpiece caused by excessive drilling pressure.

[0023] 5. During the use of this invention, gas can be automatically added to the pressure relief cylinder to maintain the system pressure, and the discharged gas can be used to cool the drill bit, preventing damage caused by continuous high temperature operation of the drill bit, and ensuring that the equipment can operate continuously and stably for a long time. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the present invention.

[0025] Figure 2 This is a cross-sectional view of the chassis of the present invention.

[0026] Figure 3 This is a schematic diagram of the structure of the turntable of the present invention.

[0027] Figure 4 This is a cross-sectional view of the turntable of the present invention. Figure 1.

[0028] Figure 5 This is a cross-sectional view of the turntable of the present invention. Figure 2 .

[0029] Figure 6 This is a schematic diagram of the rotating mechanism of the present invention.

[0030] Figure 7 This is a schematic diagram of the pressure relief mechanism of the present invention.

[0031] Figure 8 For the present invention Figure 3 A magnified structural diagram of part A in the middle.

[0032] Figure 9 For the present invention Figure 5 A magnified structural diagram of section B in the middle.

[0033] In the attached diagram: 1. Chassis; 2. Turntable; 3. Workstation slot; 4. Placement box; 5. Positioning body; 6. Unlocking block; 7. Multi-bit drilling rig; 8. Handrail bracket; 9. Limiting part; 10. Movable slot; 11. Support block; 12. Elastic tension spring; 13. Guide slot; 14. One-way locking block; 15. First compression spring; 16. Trigger; 17. Clearance slot; 18. Mounting slot; 19. Second compression spring; 20. 21. Push plate; 22. Motor; 23. Internal gear ring; 24. Center gear; 25. Transmission gear; 26. Pressure relief cylinder; 27. Main shaft; 28. First piston; 29. ​​Inlet check valve; 30. Pressure relief valve; 31. Sliding sleeve; 32. Air cylinder; 33. Second piston; 34. Outlet check valve; 35. Diverter pipe; 36. Reciprocating screw; 37. Ball bearing lifting seat; 38. Nozzle. Detailed Implementation

[0034] The following will be for reference. Figures 1 to 9 The various embodiments of the present invention will be described in detail below. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0035] A multi-hole processing device for aircraft seat side armrest brackets, such as Figures 1-3As shown, the machine includes a chassis 1 and a turntable 2 mounted on top of the chassis 1. The chassis 1 is equipped with a rotating mechanism that is linked to the turntable 2. Several workstation slots 3 are arranged along the circumference of the turntable 2. A placement box 4 is slidably fitted inside the workstation slot 3. A limiting part 9 is provided at the top of the workstation slot 3. The handrail bracket 8 to be processed is placed inside the placement box 4, and then the placement box 4 is pushed into the workstation slot 3. After the handrail bracket 8 enters the workstation, the limiting part 9 can limit the top of the handrail bracket 8 to prevent the workpiece from micro-displacement or bouncing due to cutting force, vibration and other factors during the processing, which may affect the drilling quality.

[0036] like Figure 3 , Figure 5 and Figure 9 As shown, the placement box 4 is equipped with an internal support mechanism, and the chassis 1 is equipped with a push plate mechanism and a locking mechanism that match the placement box 4. The locking mechanism is drivenly connected to the internal support mechanism. The internal support mechanism includes a movable groove 10 opened on one side of the placement box 4. A support block 11 is slidably connected in the movable groove 10. An elastic tension spring 12 is placed between the placement box 4 and the support block 11. When the support block 11 extends out of the movable groove 10, its front end enters the interior of the handrail bracket 8, forming an internal support structure. In the subsequent drilling process, especially when facing high drilling pressure and large feed rate processing conditions, this internal support mechanism can provide rigid counter-support from inside the workpiece, effectively dispersing and offsetting the radial cutting force. This design can solve the problem of local deformation that is prone to occur when drilling thin-walled parts or low-rigidity materials (such as rubber-based composite materials or thin plate structures). Through internal support, the overall stability of the workpiece during processing can be improved, avoiding hole diameter deviation, increased burrs, or abnormal tool wear caused by workpiece deformation, thereby improving the reliability and processing quality of this device.

[0037] The chassis 1 is provided with a positioning body 5, and the turntable 2 is rotatably mounted on the positioning body 5. The positioning body 5 is provided with an unlocking block 6 that matches the locking mechanism. The locking mechanism includes a guide groove 13 opened on the side wall of the work station slot 3. A one-way locking block 14 is slidably fitted in the guide groove 13. The cross-section of the one-way locking block 14 is a right trapezoid. A first compression spring 15 is installed between the one-way locking block 14 and the inner wall of the guide groove 13. When the placement box 4 is pushed into the work station slot 3, due to the shape of the one-way locking block 14 and its sliding setting, the one-way locking block 14 will not interfere with the pushing path of the placement box 4. When the placement box 4 moves to the set position, the movable slot 10 corresponds to the one-way locking block 14. The first compression spring 15 pushes against the one-way locking block 14, extends it and enters the interior of the movable slot 10, thereby pushing out the support block 11 in the movable slot 10. The one-way locking block 14 can prevent the placement box 4 from sliding in the opposite direction, thereby limiting the position of the handrail bracket 8.

[0038] The top of the one-way locking block 14 is provided with a trigger body 16, and the turntable 2 is provided with a clearance groove 17. The top of the trigger body 16 passes through the clearance groove 17. The cross-section of the clearance groove 17 is rectangular, and the top of the clearance groove matches the unlocking block 6. During the rotation of the turntable 2, when the unlocking block 6 abuts against the trigger body 16, the trigger body 16 slides along the clearance groove 17, so that the one-way locking block 14 is retracted into the guide groove 13, thereby releasing the restriction on the placement box 4.

[0039] The push plate mechanism includes an installation groove 18 on the inner wall of the workstation slot 3, a second compression spring 19 installed in the installation groove 18, and a push plate 20 slidably fitted in the workstation slot 3. The back of the push plate 20 is fixedly connected to the other end of the second compression spring 19. After the handrail bracket 8 is processed, the push plate mechanism automatically pushes the corresponding placement box 4 out of the workstation slot 3 when the limit on the placement box 4 is released, so that the operator can quickly take out the handrail bracket 8.

[0040] like Figures 2-4 , Figures 6-8 As shown, the positioning body 5 is equipped with an air supply mechanism and a multi-bit drilling machine 7. The rotating mechanism is driven and connected to the air supply mechanism. The multi-bit drilling machine 7 is equipped with a pressure relief mechanism that matches its drill bit. The pressure relief mechanism is fluidly connected to the output of the air supply mechanism, and the output of the pressure relief mechanism is set towards the drill bit. The rotating mechanism includes a motor 21 installed in the housing 1. An internal gear ring 22 is coaxially connected to the bottom of the turntable 2. A central gear 23 and a transmission gear 24 are rotatably connected to the positioning body 5. The internal gear ring 22 and the central gear 23 are both meshed with the transmission gear 24. In this embodiment, the diameter of the transmission gear 24 is smaller than the diameter of the internal gear ring 22 and larger than the diameter of the central gear 23. The transmission gear 24 is coaxially fixedly connected to the output of the motor 21. When the motor 21 starts, it drives the internal gear ring 22 and the turntable 2 to rotate slowly, and causes the central gear 23 to rotate at high speed.

[0041] like Figure 3 , Figure 7 and Figure 8 As shown, the pressure relief mechanism includes a pressure relief cylinder 25 disposed on the top of the drill bit. The spindle 26 on the drill bit is slidably connected to the pressure relief cylinder 25. A first piston 27 is installed on the spindle 26 located inside the pressure relief cylinder 25. The top of the pressure relief cylinder 25 is provided with an air inlet and a pressure relief valve 29. The output part of the pressure relief valve 29 is provided with a nozzle 37, and the air outlet direction of the nozzle 37 is set towards the drill bit. The output part of the multi-drill bit drilling machine 7 is provided with a sliding sleeve 30, which is slidably engaged with the top end of the spindle 26. This device adopts a multi-spindle 26 synchronous drill bit unit. Due to the possible local height difference of the workpiece and the non-uniform wear of multiple drill bits during the processing, the axial load (drilling pressure) borne by each spindle 26 during synchronous feeding will be different. This uneven drilling pressure may cause local overload, which in turn causes the drill bit to chip, the thin-walled area of ​​the workpiece to deform, or the hole quality to decrease.

[0042] This device, through the setting of a pressure relief mechanism, when the drilling pressure on any drill bit increases, the spindle 26 pushes the first piston 27 to move upward in the pressure relief cylinder 25 (the air pressure in the pressure relief cylinder 25 increases). When the drilling pressure rises to a preset threshold, and when the pressure in the pressure relief cylinder 25 reaches the opening setting value of the pressure relief valve 29, the pressure relief valve 29 automatically opens to release air, thereby keeping the feed force of the spindle 26 within a safe range, realizing overload protection, and effectively preventing drill bit damage or irreversible deformation of the workpiece caused by excessive drilling pressure; when the first piston 27 rises and falls, the top end of the spindle 26 slides in the sliding sleeve 30.

[0043] In this embodiment, Figure 7 For reference, the multi-bit drilling rig 7 has one active drive wheel and multiple drive wheels, which are linked by a synchronous belt to drive all drill bits to rotate synchronously. This is existing technology and will not be elaborated further. This device drives multiple drill bits to work simultaneously, which improves the drilling efficiency of the device.

[0044] like Figure 3 , Figure 4 and Figure 8 As shown, the air supply mechanism includes an air cylinder 31 fixed on the positioning body 5. A second piston 32 is slidably fitted inside the air cylinder 31. A lifting unit is installed at the bottom of the second piston 32. The lifting unit is linked with the central gear 23. An inlet check valve 28 and an outlet check valve 33 are provided at the top of the air cylinder 31. The output end of the outlet check valve 33 is connected to the air inlets of multiple pressure relief cylinders 25 through a diversion pipe 34. The lifting unit is a ball screw module, which consists of a reciprocating screw 35 and a ball lifting seat 36. The reciprocating screw 35 is coaxially fixed on the central gear 23, and the ball lifting seat 36 is installed at the bottom of the second piston 32. When the central gear 23 rotates, the reciprocating screw 35 drives the ball lifting seat 36 to repeatedly rise and fall, thereby causing the second piston 32 to reciprocate inside the air cylinder 31. By utilizing the cooperation of the inlet check valve 28 and the outlet check valve 33, the air injection operation into the pressure relief cylinder 25 is realized.

[0045] The working principle of this device is as follows: The handrail bracket 8 to be processed is placed inside the placement box 4, and then the placement box 4 is pushed into the work station slot 3 (during the pushing process, the second compression spring 19 is compressed and stored to provide power for the subsequent automatic ejection process). After the handrail bracket 8 reaches the set work station, the movable slot 10 corresponds to the one-way locking block 14. The first compression spring 15 pushes against the one-way locking block 14 and extends into the movable slot 10. The front end of the one-way locking block 14 pushes out the support block 11, and the support block 11 enters the handrail bracket 8 to form internal support. At this time, the push plate 20 pushes against the work and the one-way locking block 14 limits the position of the handrail bracket 8. The limiting part 9 restricts the top of the workpiece, effectively suppressing the displacement or bouncing of the workpiece during the processing, and ensuring the stability and processing accuracy of the drilling process.

[0046] It should be noted that this device can achieve multi-hole synchronous processing, which improves the single-piece cycle efficiency. However, multi-hole synchronous processing causes high pressure on the side wall of the handrail bracket 8. This device effectively disperses and offsets the radial cutting force through internal support design, ensuring efficient drilling while avoiding deformation of the side wall.

[0047] It should be noted that the turntable 2 of this device has multiple workstation slots 3 distributed circumferentially. During use, the motor 21 drives the turntable 2 to perform intermittent indexing motion. When the placement box 4 carrying the workpiece rotates to align with the multi-drill machine 7, the drilling process is performed. After processing, the turntable 2 guides it to the next workstation. When the processed workpiece rotates to the unloading position, the unlocking block 6 on the turntable 2 contacts and pushes the trigger body 16, causing it to slide along the clearance slot 17. This drives the one-way locking block 14 to overcome the resistance of the first compression spring 15 and retract into the guide slot 13, thereby releasing the lock on the placement box 4. At this time, the second compression spring 19 releases energy and pushes the placement box 4 out of the workstation slot 3 automatically through the push plate 20, realizing the automatic ejection of the workpiece. This makes it easy for the operator to quickly pick up the workpiece, improving work efficiency and ease of use.

[0048] This device enables a continuous flow of feeding, processing, and unloading, ensuring continuous processing and greatly improving equipment utilization and production efficiency.

[0049] During the use of this device, when the drilling pressure on any drill bit increases, the spindle 26 pushes the first piston 27 to move upward in the pressure relief cylinder 25 (the air pressure in the pressure relief cylinder 25 increases). When the drilling pressure rises to a preset threshold, and the pressure in the pressure relief cylinder 25 reaches the opening setting value of the pressure relief valve 29, the pressure relief valve 29 automatically opens to release air, thereby keeping the feed force of the spindle 26 within a safe range, realizing overload protection, and effectively preventing drill bit damage or irreversible deformation of the workpiece caused by excessive drilling pressure.

[0050] During the rotation of turntable 2, the central gear 23 drives the reciprocating screw 35, which in turn drives the ball lifting seat 36 and the second piston 32 to reciprocate, continuously replenishing gas into the pressure relief cylinder 25. Excess gas is discharged through the pressure relief valve 29 and guided by the nozzle 37 to form a directional airflow that blows towards the cutting edge of the drill bit. This design achieves a dual function: first, it replenishes the medium in the pressure relief circuit during the processing interval to maintain the system pressure; second, it uses the discharged gas to cool the drill bit, preventing damage caused by continuous high-temperature operation and ensuring that the equipment can operate continuously and stably for a long time.

[0051] It should be noted that in the description of this invention, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0052] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0053] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the scope of protection of the present invention.

Claims

1. A multi-hole processing device for side armrest brackets of aircraft seats, comprising a chassis (1) and a turntable (2) disposed on the top of the chassis (1), characterized in that, The chassis (1) is provided with a rotating mechanism, which is linked with the turntable (2). The turntable (2) has several work station slots (3) arranged in a circular array along its axis. A placement box (4) is slidably fitted in the work station slot (3). An inner support mechanism is provided on the placement box (4). The chassis (1) is provided with a push plate mechanism and a locking mechanism that match the placement box (4). The locking mechanism is driven and connected to the inner support mechanism. The chassis (1) is provided with a positioning body (5), and the turntable (2) is rotatably set on the positioning body (5). The positioning body (5) is provided with an unlocking block (6) that matches the locking mechanism. The positioning body (5) is equipped with an air supply mechanism and a multi-bit drill (7). The rotating mechanism is driven and connected to the air supply mechanism. The multi-bit drill (7) is provided with a pressure relief mechanism that matches its drill bit. The pressure relief mechanism is fluidly connected to the output of the air supply mechanism. The output of the pressure relief mechanism is set towards the drill bit.

2. The multi-hole processing equipment for the side armrest bracket of an aircraft seat according to claim 1, characterized in that, The top of the work station slot (3) is provided with a limiting part (9).

3. The multi-hole processing equipment for the side armrest bracket of an aircraft seat according to claim 1, characterized in that, The internal support mechanism includes a movable groove (10) opened on one side of the placement box (4), a support block (11) is slidably connected in the movable groove (10), and an elastic tension spring (12) is connected between the placement box (4) and the support block (11).

4. The multi-hole processing equipment for the side armrest bracket of an aircraft seat according to claim 1, characterized in that, The locking mechanism includes a guide groove (13) opened on the side wall of the work station slot (3), a one-way locking block (14) is slidably fitted in the guide groove (13), and a first compression spring (15) is installed between the one-way locking block (14) and the inner wall of the guide groove (13).

5. The multi-hole processing equipment for the side armrest bracket of an aircraft seat according to claim 4, characterized in that, The top of the one-way locking block (14) is provided with a trigger body (16), and the turntable (2) is provided with a clearance groove (17). The top of the trigger body (16) passes through the clearance groove (17) and matches the top of the unlocking block (6).

6. The multi-hole processing equipment for the side armrest bracket of an aircraft seat according to claim 1, characterized in that, The push plate mechanism includes an installation groove (18) opened on the inner wall of the work station groove (3), a second compression spring (19) is installed in the installation groove (18), and a push plate (20) is slidably fitted in the work station groove (3). The back of the push plate (20) is fixedly connected to the other end of the second compression spring (19).

7. The multi-hole processing equipment for the side armrest bracket of an aircraft seat according to claim 1, characterized in that, The rotating mechanism includes a motor (21) installed in the housing (1), an internal gear ring (22) coaxially connected to the bottom of the turntable (2), a central gear (23) and a transmission gear (24) rotatably connected to the positioning body (5), the internal gear ring (22) and the central gear (23) are both meshed with the transmission gear (24), and the transmission gear (24) is coaxially fixedly connected to the output part of the motor (21).

8. The multi-hole processing equipment for the side armrest bracket of an aircraft seat according to claim 7, characterized in that, The pressure relief mechanism includes a pressure relief cylinder (25) located on the top of the drill bit. The main shaft (26) on the drill bit is slidably connected to the pressure relief cylinder (25). A first piston (27) is installed on the main shaft (26) inside the pressure relief cylinder (25). The top of the pressure relief cylinder (25) is provided with an air inlet and a pressure relief valve (29). The output part of the pressure relief valve (29) is provided with a nozzle (37). The air outlet direction of the nozzle (37) is set towards the drill bit.

9. The multi-hole processing equipment for the side armrest bracket of an aircraft seat according to claim 8, characterized in that, The output section of the multi-bit drilling rig (7) is provided with a sliding sleeve (30), which slides in cooperation with the top end of the spindle (26).

10. A multi-hole processing device for an aircraft seat side armrest bracket according to claim 9, characterized in that, The air supply mechanism includes an air cylinder (31) fixed on a positioning body (5). A second piston (32) is slidably fitted inside the air cylinder (31). A lifting unit is installed at the bottom of the second piston (32). The lifting unit is linked with a central gear (23). An inlet check valve (28) and an outlet check valve (33) are provided at the top of the air cylinder (31). The output end of the outlet check valve (33) is fluidly connected to the air inlets of multiple pressure relief cylinders (25) through a diversion pipe (34). The lifting unit is a ball screw module, which consists of a reciprocating screw (35) and a ball lifting seat (36). The reciprocating screw (35) is coaxially fixed on the central gear (23), and the ball lifting seat (36) is installed at the bottom of the second piston (32).

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