CN211760038U

CN211760038U - Machining clamp for side lining plate of aviation seat

Info

Publication number: CN211760038U
Application number: CN201922419022.2U
Authority: CN
Inventors: 刘巧侠; 方运节; 熊涛
Original assignee: Suzhou Lianjia Precision Machinery Co ltd
Current assignee: Suzhou Lianjia Precision Machinery Co ltd
Priority date: 2019-12-27
Filing date: 2019-12-27
Publication date: 2020-10-27
Anticipated expiration: 2029-12-27

Abstract

The utility model discloses a add clamping apparatus for aircraft seat side welt, a serial communication port, include: the bottom plate, the sealing strip, the filter plug, the iron block, the magnet and the pressing block; the bottom plate is connected with an air pipe and is connected with a vacuumizing device through the air pipe; the sealing strips are arranged on the bottom plate and enclose an adsorption area; the bottom plate is provided with a vent hole, the vent hole is positioned in the adsorption area, and the vent hole is communicated with the air pipe; the filter plug is arranged in the vent hole; the iron block and the magnet are arranged on the bottom plate, and the workpiece is placed between the iron block and the magnet; the briquetting sets up on the bottom plate, and the briquetting is connected for dismantling with the bottom plate. Through the mode, the utility model adopts the alternative action of the air pressure and the magnetic force, avoids the cutter breakage and abnormal part size caused by the unstable clamping problem, has stable clamping, smoother processing process and effectively ensures the processing efficiency; and the number of times of pause of the machine tool due to clamp replacement is reduced compared with the original number, and the processing efficiency is improved.

Description

Machining clamp for side lining plate of aviation seat

Technical Field

The utility model relates to a machining technical field especially relates to a add clamping apparatus for aviation seat side liner.

Background

The side lining plate of the aviation seat is an important part of a high-end seat system of a passenger plane, has a similar structure and various specifications, and is mainly characterized by thin wall, more hollow parts, large cutting amount, aluminum pieces with the shape length and width of about 600mm, and the flatness of a finished product of the aluminum pieces is generally required to be within 0.01 inch. The conventional process is that a blank with a smooth surface is directly horizontally placed on a secondary worktable, screws or pressing plates are locked at the hollowed-out position in the middle of the part and peripheral materials, and the screws, the pressing plates and the residual materials are sequentially replaced according to the sequence of processing positions until the working procedure is finished.

Although the conventional clamp has strong universality and certain convenience in use, the conventional clamp also gradually exposes a plurality of defects and shortcomings. The conventional process locks the screw on the residual material in the middle of the hollow hole, increases the number of bosses in the cavity, narrows the originally wider cavity, can only use the traditional 'bulldozer type' cutting under the condition of more milling amount, and has the advantages of large resistance, low speed, very low processing efficiency and uncontrollable part deformation. The mature high-speed peeling cutting method used in the machining of other parts has high efficiency, but the cutting method cannot be developed on the conventional process of the parts, and the machining efficiency is greatly limited.

In addition, due to the difference of the structure of the parts, the positions where part of the parts can be pressed and held are very limited, and some parts cannot be pressed and held by screws or pressing plates, so that the vibration knife or even the over-cutting scrapping is easily caused by local shaking or tilting in the processing process, and the stability of the process quality is affected. For the reverse side processing with the longest working hour, the clamp needs to be replaced for 4-5 times usually midway, the number of screws and pressing plates is large, the operation is complex, an operator can only operate one machine generally, the machine tool has many stop times and low utilization rate, and the output and delivery period of the equipment are seriously influenced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the main technical problem who solves provides a add clamping apparatus for aviation seat side liner can adopt two kinds of pressures of atmospheric pressure and magnetic force to hold the mode in turn and act on, avoids because of the disconnected sword that the clamping problem leads to is unusual or the part size is unusual, and the clamping is stable, and the course of working is more smooth and easy, effectively guarantees machining efficiency.

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

a adds clamping apparatus for aviation seat side liner board which characterized in that includes: the bottom plate, the sealing strip, the filter plug, the iron block, the magnet and the pressing block; the bottom plate is connected with an air pipe and is connected with a vacuumizing device through the air pipe; the sealing strips are arranged on the bottom plate, and the sealing strips surround an adsorption area; the bottom plate is provided with a vent hole, the vent hole is positioned in the adsorption area, and the vent hole is communicated with an air pipe; the filter plug is arranged in the vent hole; the iron block and the magnet are arranged on the bottom plate, and the workpiece is placed between the iron block and the magnet; the briquetting sets up on the bottom plate, the briquetting is for dismantling the connection with the bottom plate.

Preferably, a sealing groove is formed in the bottom plate, the sealing strip is arranged in the sealing groove of the bottom plate, and the top end of the sealing strip is higher than the upper surface of the bottom plate.

Preferably, the sealing strip is a foamed silica gel strip.

Preferably, the filtering plug comprises a filtering block and a connecting block, the filtering block is connected with the connecting block, an air hole is formed in the filtering block, the air hole is communicated with the air hole, an external thread is arranged on the connecting block, and the connecting block is in threaded connection with the bottom plate.

Preferably, the filter block is provided with a groove.

Preferably, the diameter of the air holes is 0.8 mm-1.0 mm.

Preferably, magnet is belt wheel neodymium iron boron magnet, belt wheel neodymium iron boron magnet includes latch closure and neodymium iron boron magnet, the latch closure is connected with neodymium iron boron magnet.

Because of above-mentioned technical scheme's application, compared with the prior art, the utility model has the following beneficial effect:

the processing clamp for the side lining plate of the aerial seat is provided, and the air pressure and magnetic force are alternatively used, so that parts are firmly installed at fixed positions, the purpose of positioning and processing is achieved, abnormal cutter breakage caused by the problem of clamping is avoided, the clamping is stable, the processing process is smoother, and the processing efficiency is effectively ensured; and the number of times of pause of the machine tool due to clamp replacement is reduced compared with the original number, and the processing efficiency is improved.

Drawings

Fig. 1 is a schematic structural diagram of the processing clamp for the side lining plate of the aircraft seat of the present invention.

Fig. 2 is an exploded view of the present invention, which is used for machining a side lining plate of an aircraft seat.

Fig. 3 is an exploded view of the machining fixture for the side lining plate of the aircraft seat in another angle.

Fig. 4 is a schematic structural diagram of a filter plug in the machining fixture for the side lining plate of the aircraft seat of the present invention.

Description of reference numerals:

the device comprises a bottom plate 1, a sealing strip 2, a filter plug 3, a filter block 31, an air vent 311, a connecting block 32, an iron block 4, a magnet 5, a pressing block 6, an air pipe 7, an air suction valve 8 and a workpiece 9.

Detailed Description

The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.

Referring to the drawings, a machining clamp for an aircraft seat side lining plate is characterized by comprising: the device comprises a bottom plate 1, a sealing strip 2, a filter plug 3, an iron block 4, a magnet 5 and a pressing block 6. The bottom plate 1 can be made of 7075-T651 rolled aluminum alloy plate, the surface is subjected to hard anodic oxidation, the film layer is controlled to be 40 +/-10 microns, the light weight requirement is met, the strength requirement of the clamp can be met, the surface is also hardened, and the damage resistance, oxidation resistance and corrosion resistance of the surface are improved. Meanwhile, the slotted tooth sockets are arranged on all the screw holes and can be replaced, so that the situation that normal machining is influenced because the thread cannot be used after being screwed off is prevented.

The bottom plate 1 is connected with an air pipe 7, the bottom plate 1 is connected with a vacuum pumping device through the air pipe 7, and the vacuum pumping device can adopt a vacuum pump in the prior art and is not shown in the figure. The vacuumizing device can be connected to the side face of the bottom plate 1, the PT1/4-19 pipe threaded joint is in butt joint with the vent hole on the side face of the bottom plate 1, a PU hose with pressure resistance of 10Kg is in butt joint, the air pressure is set to be 8-9 Kg, and the pressure requirement during processing is met.

Sealing strip 2 sets up on bottom plate 1, and sealing strip 2 is the foaming silica gel strip, and sealing strip 2 encloses into an adsorption zone. Can set up the seal groove on bottom plate 1, sealing strip 2 sets up in the seal groove of bottom plate 1, and sealing strip 2 top is higher than bottom plate 1 upper surface. After the workpiece 9 is positioned on the clamp through the pin, the air suction valve 8 is opened, air in the adsorption area is evacuated to form a vacuum state, because the atmospheric pressure of the adsorption area still exists, an air pressure difference is formed between the inside and the outside of the adsorption area, and the workpiece 9 is pressurized by the external atmosphere to be tightly attached to the clamp. The pressure can be adjusted by the vacuum-pumping device to meet the pressing force required by processing.

The bottom plate 1 is provided with a vent hole which is positioned in the adsorption area and communicated with the air pipe 7. The filter plug 3 is disposed in the vent hole. The filter plug 3 comprises a filter block 31 and a connecting block 32, the filter block 31 is connected with the connecting block 32, an air hole 311 is formed in the filter block 31, the air hole 311 is communicated with the air hole, an external thread is formed in the connecting block 32, and the connecting block 32 is in threaded connection with the base plate 1. The filter block 31 is provided with a groove which can be in a straight shape or a cross shape, and the filter plug 3 can be conveniently mounted and dismounted through the arrangement of the groove.

The diameter of the air holes 311 is 0.8 mm-1.0 mm, cutting chips are prevented from falling into the filter block 31 through the diameter of the air holes 311, and the chips are prevented from entering the air pipes 7 to cause blockage, so that air pressure is reduced.

An iron block 4 and a magnet 5 are arranged on the base plate 1, the iron block 4 is magnetically connected with the magnet 5, and a workpiece 9 is placed between the iron block 4 and the magnet 5. Iron plate 4 is locked in the counter bore of bottom plate 1 with the screw, and iron plate 4 surface flushes with the anchor clamps upper surface, has solved aluminium system main part magnetic force absorption problem promptly, also accords with the lightweight design requirement of anchor clamps.

Magnet 5 is belt wheel neodymium iron boron magnet, and belt wheel neodymium iron boron magnet includes latch closure and neodymium iron boron magnet, and the latch closure is connected with neodymium iron boron magnet, and the operating personnel operation of being convenient for is buckled to the latch closure. Neodymium iron boron magnet with ring, theoretical adsorption affinity is about 80Kg, when adorning on work piece 9, because work piece 9 bottom thickness is 1.75mm, has cushioned a layer of nonmagnetic medium between magnet 5 and the bottom steel block in other words, the suction of magnet 5 can largely be discounted this moment, and actual effort is through testing about 9 ~ 11Kg, satisfies the required pressure of processing completely, also is convenient for the dismouting.

Briquetting 6 sets up on bottom plate 1, and briquetting 6 passes through the bolt can be dismantled with bottom plate 1 and is connected, and 6 cooperation magnets 5 combined action of briquetting pushes down 9 edges of work pieces through briquetting 6, makes it more stable.

After all the structures on the inner cavity surface of the workpiece 9 are machined, the residual materials in the middle of the remaining special-shaped holes are cut off, but the vacuum pressure can not play a pressing role when the thin-wall surface is cut through, at the moment, the magnetic device is arranged at a specified position, and the pressure generated by magnetic adsorption is used for replacing the vacuum pressure to continuously press the workpiece 9 until the machining is finished. Therefore, the workpiece 9 can be continuously and firmly pressed, and the fault caused by that a large amount of cutting fluid is sucked into the vacuum pipeline when the defective materials at the hollow part are cut off can be prevented.

According to different structural features, generally, the workpiece 9 can be machined in a whole sequence only by simply replacing the clamp for about 2 times in the machining process, the clamping is firm and reliable, the operation is convenient, the cutting mode of high-speed peeling can be applied, the efficiency of the cutting mode can be fully exerted, and the quality and the efficiency are greatly improved.

In the actual processing process, the filter plug 3 is screwed into the vent hole on the bottom plate 1 and is lower than the plate surface so as to prevent debris from entering the air pipe 7 to cause blockage and influence the air pressure. Two iron blocks 4 are arranged in a countersunk hole of the bottom plate 1 and are locked on the bottom plate 1 by screws, and the upper surfaces of the iron blocks 4 are flush with the upper surface of the bottom plate 1 and are used as adsorption carriers of the strong magnetic device. The foaming sealing strips 2 are arranged in the sealing grooves on the bottom plate 1 according to the designated positions and are connected end to end, so that the phenomenon of discontinuity cannot occur, and the sealing strips 2 are required to protrude out of the plate surface by 0.8-1.0 mm after being arranged. 2 pins with the diameter of 6g6-L15 are pressed into positioning holes in the upper surface of the bottom plate 1 in an interference fit manner, the plate surfaces of the pins are exposed by 3-4 mm, and the heights of the two pins are consistent and used for positioning a workpiece 9. The vent hole on the side surface of the bottom plate 1 is connected with a PT1/4-19 pipe joint and a phi 12 PU air pipe 7.

The base plate 1 is positioned on the machine tool sub-table with two pins phi 12g6-L20 and locked with 7M 10 screws. Then the air valve is fixed on the machine tool workbench and is connected into a vacuum pump pipeline through an air pipe 7. The workpiece 9 is positioned on the clamp surface through two phi 6g6 pins on the bottom plate 1, the suction valve 8 is opened, and the workpiece 9 is adsorbed on the bottom plate 1. Then 5M 6 screws are locked into corresponding holes for fixing the remnant materials and preventing the remnant materials from flying and cutting during cutting. After the preset processing content is finished, the pressing block 6 is arranged at the appointed position of the bottom plate 1, and the edge of the workpiece 9 is pressed to prevent the bottom from being over-cut caused by the edge tilting. After the content on the inner plane of the cavity of the workpiece 9 is processed, 2 neodymium iron boron magnets are arranged on the bottom surface of the cavity of the workpiece 9 and correspond to the iron blocks 4 on the bottom plate 1, and the thin wall of the workpiece 9 is firmly fixed on the bottom plate 1 by the magnets 5. Then the suction valve 8 is closed, and the rest program of the machine tool is started to finish the machining of the workpiece 9.

The above is only the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and all the same principles are included in the protection scope of the present invention.

Claims

1. A adds clamping apparatus for aviation seat side liner board which characterized in that includes: the bottom plate, the sealing strip, the filter plug, the iron block, the magnet and the pressing block; the bottom plate is connected with an air pipe and is connected with a vacuumizing device through the air pipe; the sealing strips are arranged on the bottom plate, and the sealing strips surround an adsorption area; the bottom plate is provided with a vent hole, the vent hole is positioned in the adsorption area, and the vent hole is communicated with an air pipe; the filter plug is arranged in the vent hole; the iron block and the magnet are arranged on the bottom plate, and the workpiece is placed between the iron block and the magnet; the briquetting sets up on the bottom plate, magnet, briquetting and bottom plate are for dismantling to be connected.

2. A machining fixture for an aircraft seat side liner as claimed in claim 1, wherein: the bottom plate is provided with a sealing groove, the sealing strip is arranged in the sealing groove of the bottom plate, and the top end of the sealing strip is higher than the upper surface of the bottom plate.

3. A machining fixture for an aircraft seat side liner as claimed in claim 1, wherein: the sealing strip is a foaming silica gel strip.

4. A machining fixture for an aircraft seat side liner as claimed in claim 1, wherein: the filter plug comprises a filter block and a connecting block, the filter block is connected with the connecting block, an air hole is formed in the filter block and communicated with the air hole, an external thread is arranged on the connecting block, and the connecting block is in threaded connection with the bottom plate.

5. A machining clamp for an aircraft seat side liner according to claim 4, characterized in that: the filter block is provided with a groove.

6. A machining clamp for an aircraft seat side liner according to claim 4, characterized in that: the diameter of the air holes is 0.8 mm-1.0 mm.

7. A machining fixture for an aircraft seat side liner as claimed in claim 1, wherein: magnet is belt wheel neodymium iron boron magnet, belt wheel neodymium iron boron magnet includes latch closure and neodymium iron boron magnet, the latch closure is connected with neodymium iron boron magnet.