CN103587124B - Carbon fiber composite material rectangular hollow pipe for mechanical arm manufacture method - Google Patents

Carbon fiber composite material rectangular hollow pipe for mechanical arm manufacture method Download PDF

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Publication number
CN103587124B
CN103587124B CN201310543833.8A CN201310543833A CN103587124B CN 103587124 B CN103587124 B CN 103587124B CN 201310543833 A CN201310543833 A CN 201310543833A CN 103587124 B CN103587124 B CN 103587124B
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China
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hollow pipe
carbon fiber
airbag
manufacture
inflation
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CN201310543833.8A
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Chinese (zh)
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CN103587124A (en
Inventor
陈征辉
马永杰
孙攀
钱星宇
王峰
王岩洁
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江苏恒神股份有限公司
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Publication of CN103587124A publication Critical patent/CN103587124A/en
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Abstract

The invention provides a kind of manufacture method and gained rectangle hollow pipe of carbon fiber composite material rectangular hollow pipe for mechanical arm, take carbon fibre composite as raw material, described carbon fibre composite is carbon fiber prepreg, described prepreg comprises unidirectional and Fabric prereg, adopts the orthogonal hollow pipe of mold pressing inflation legal system; The manufacture method of this kind of carbon fiber composite material rectangular hollow pipe take carbon fiber prepreg as raw material, adopts mold pressing inflation combination forming to make rectangular thin-wall hollow pipe.Compared with prior art, bearing capacity of the present invention is large, good rigidly, from heavy and light, during work, the action of arm is more steady, move on to and stop rapider, the vibration damping characteristic that carries of carbon fibre composite makes arm to locate more fast, its zero thermal expansion coefficient is more applicable for precision equipment, and equipment investment is little, Making mold is simple, energy consumption is low, with short production cycle and can automated production.

Description

Carbon fiber composite material rectangular hollow pipe for mechanical arm manufacture method

Technical field

The present invention relates to a kind of manufacture method and gained rectangle hollow pipe of carbon fiber composite material rectangular hollow pipe for mechanical arm.

Background technology

The effect of robot arm is the drive disk assembly as industrial robot, and the robot arm major part of existing application is by aluminium alloy or steel making, and due to these insufficient rigidity of material, non-endurance, and proportion is excessive, and flexibility ratio is not high, and thermal coefficient of expansion is large.

Carbon fibre composite has excellent mechanical property and chemical property, and as specific strength is high, specific modulus is large, the advantages such as anti-fatigue performance is good, and chemical resistance is good.The arm bearing capacity using carbon fibre composite to make is large, good rigidly, from heavy and light, during work, the action of arm is more steady, mobile and stop rapider.The vibration damping characteristic that carries of carbon fibre composite makes robot arm energy quick position, and its zero thermal expansion coefficient is more applicable for precision equipment.

Now existing mechanical arm carbon fibre composite hollow pipe manufacture method, but be mainly all be wound up as master, and there is goods interior porosity high, the shortcomings such as the uneven and resin content of resin distribution is uncontrollable, and production environment is severe, production efficiency is low.

The problems referred to above should be paid attention in the design and production process of mechanical arm rectangle hollow pipe and the problem solved.

Summary of the invention

The object of this invention is to provide a kind of manufacture method and gained rectangle hollow pipe solution of carbon fiber composite material rectangular hollow pipe for mechanical arm.The arm major part of current prior art is by aluminium alloy or steel making, due to these insufficient rigidity of material, non-endurance, and proportion is excessive, and flexibility ratio is not high, thermal coefficient of expansion is large, in addition, existing mechanical arm carbon fibre composite hollow pipe manufacture method now, but be mainly all be wound up as master, there is goods interior porosity high, the shortcomings such as the uneven and resin content of resin distribution is uncontrollable, and production environment is severe, the problem that production efficiency is low.

Technical solution of the present invention is:

A kind of manufacture method of carbon fiber composite material rectangular hollow pipe for mechanical arm, take carbon fibre composite as raw material, described carbon fibre composite is carbon fiber prepreg, and described prepreg comprises unidirectional and Fabric prereg, adopts the orthogonal hollow pipe of mold pressing inflation legal system.

Preferably, described mold pressing inflation method is specially: adopt carbon fiber prepreg laying on core to form preform, preform being sloughed core is placed in counterdie, airbag is placed in preform inside, close patrix, and the joint of airbag outlet is fixed on mould mouth, inflate in airbag, die sinking after being heating and curing, and Post RDBMS in an oven, obtain rectangle hollow tubing products.

Preferably, described airbag adopts high temperature resistant silica gel mantle, and the outlet of described airbag is snap joint.

Preferably, carry out inflation to airbag and adopt stage inflation, described stage inflation comprises once above inflation.

Preferably, described stage inflation is specially: the blowing pressure is 20% ~ 30% of maximum pressure first, makes preform fit to the die cavity of mould, simultaneously that preform pressing is fine and close; Inflate after losing heart, pressure is 50% ~ 60% of maximum pressure again, and inflation of losing heart is carried out in circulation, until apply maximum pressure 10bar-15bar and keep maximum pressure to be cured.

Preferably, described patrix is fixed on the slide block of press, and described counterdie is fixed on the workbench of press, and described press is heated to fixed temperature 120 DEG C-150 DEG C, and constant temperature keeps.

Preferably, upper die and lower die are all fixed on press, adopt carbon fiber prepreg laying on core to form preform, preform is sloughed core and be placed in counterdie, airbag is placed in preform inside, close patrix, the joint of airbag outlet is fixed on mould mouth, inflates in airbag, and first time is applied with 3bar pressure in airbag, second time 6bar, third time 10bar; Pressure release after pressurize 3min after pressurization, again after inflation always pressurize system to solidifying end; Goods are placed in baking oven Post RDBMS by pressure releasing die sinking, rear curing time 2h, obtain rectangle hollow tubing products after solidification.

Preferably, in described prepreg use resin to be epoxy resin toughened, in described prepreg, resin content is 35% ~ 45%.

Preferably, the internal layer of described rectangle hollow pipe and skin Fabric prereg, the mid portion unidirectional pre-immersion material of described rectangle hollow pipe.

A kind of carbon fiber composite material rectangular hollow pipe for mechanical arm, is obtained by above-mentioned manufacture method.

The manufacture method of a kind of carbon fiber composite material rectangular hollow pipe of the present invention, provides the manufacture method of the carbon fiber composite material rectangular hollow pipe for mechanical arm that a kind of interior porosity is low, resin content is controlled and production efficiency is high, cost is low.Material therefor of the present invention is prepreg, relative to general carbon fibre composite arm, accurately can control the resin content of arm, reduces the porosity of arm inside.Select prepreg to be made up of unidirectional and fabric, the strength and stiffness that unidirectional pre-immersion material can provide primary load bearing direction larger, Fabric prereg paving, at the surfaces externally and internally of arm, can provide longitudinal strength and shear strength, can also provide surface more attractive in appearance.It is epoxy resin toughened for making prepreg resin used, anticollision or impact property good, cracking resistance line good extending performance, resin content is 35% ~ 45%.

The manufacture method of a kind of carbon fiber composite material rectangular hollow pipe of the present invention, provides that a kind of equipment investment is little, Making mold is simple, energy consumption is low, the cycle is short and can the novel process of automated production.The present invention by applying airbag at inside parts, and utilizes press locked mode to heat, and oven post-cure not only saves expensive auxiliary materials expense, makes part pad pasting tightr simultaneously, ensure that the surface smoothness of part.This method is applicable to the various hollow thin-wall structure with corner angle, the profile such as bending and variable cross-section.

The manufacture method of a kind of carbon fiber composite material rectangular hollow pipe of the present invention, comprises the following steps:

Carbon fibre material is used to prepare core, for the lay-up process of part;

Purchase the mould for solidifying, mould is made up of upper die and lower die, and the counterdie of mould is fixed on the workbench of moulding press, and patrix is fixed on the slide block of moulding press, purchases the airbag that the silica gel for inflating is made;

Core completes composite laying, after laying terminates, sloughs core, obtain part stock, i.e. preform;

Airbag is placed in part stock inner, part stock is placed in counterdie, and the joint of airbag is placed in mould mouth, and close patrix, and mold heated is steady temperature, and temperature is determined by prepreg curing mechanism;

Inflate airbag, pressure is 20% ~ 30% of maximum pressure, makes part stock fit to the die cavity of mould, simultaneously that the pressing of part stock is fine and close.Lose heart and then inflate, pressure is 50% ~ 60% of maximum pressure, then inflation of losing heart, until apply maximum pressure and keep maximum pressure to solidify.The disappointing number of times of inflation and the maximum pressure of applying suitably can be revised according to prepreg curing process;

After having solidified, die sinking of losing heart, goods are placed in baking oven Post RDBMS, solidification temperature can with reference to prepreg curing mechanism; Obtain rectangle hollow tubing products.

The invention has the beneficial effects as follows: the manufacture method of a kind of carbon fiber composite material rectangular hollow pipe of the present invention and gained rectangle hollow pipe, is take carbon fiber prepreg as raw material, adopts mold pressing inflation combination forming to make rectangular thin-wall hollow pipe.Compared with prior art, bearing capacity of the present invention is large, good rigidly, from heavy and light, during work, the action of arm is more steady, move on to and stop rapider, the vibration damping characteristic that carries of carbon fibre composite makes arm to locate more fast, its zero thermal expansion coefficient is more applicable for precision equipment, and equipment investment is little, Making mold is simple, energy consumption is low, the cycle is short and can automated production.The present invention by applying airbag at inside parts, and utilizes press locked mode to heat, and oven post-cure not only saves expensive auxiliary materials expense, makes part pad pasting tightr simultaneously, ensure that the surface smoothness of part.

Accompanying drawing explanation

Fig. 1 is the making schematic diagram of rectangle hollow pipe in the embodiment of the present invention;

Wherein: 1-airbag, 2-patrix, 3-counterdie, 4-preform, 5-joint.

Detailed description of the invention

Preferred case study on implementation of the present invention is described in detail below in conjunction with accompanying drawing.

As shown in Figure 1, the implementation case provides a kind of manufacture method of carbon fiber composite material rectangular hollow pipe for mechanical arm, take carbon fibre composite as raw material, described carbon fibre composite is carbon fiber prepreg, described prepreg comprises unidirectional and Fabric prereg, adopts the orthogonal hollow pipe of mold pressing inflation legal system.In described prepreg use resin to be epoxy resin toughened, in described prepreg, resin content is 35% ~ 45%.The internal layer of described rectangle hollow pipe and skin Fabric prereg, the mid portion unidirectional pre-immersion material of described rectangle hollow pipe.

Patrix 2, counterdie 3 are all fixed on press, carbon fiber prepreg laying on core is adopted to form preform 4, preform 4 being sloughed core is placed in counterdie 3, airbag 1 is placed in preform 4 inner, close patrix 2, and the joint 5 that airbag 1 exports is fixed on mould mouth, inflate in airbag 1, first time is applied with 3bar pressure in airbag 1, second time 6bar, third time 10bar; Pressure release after pressurize 3-5min after pressurization, again after inflation always pressurize system to solidifying end; Goods are placed in baking oven Post RDBMS by pressure releasing die sinking, rear curing time 2h, obtain rectangle hollow tubing products after solidification.

The present embodiment provides a kind of carbon fiber composite material rectangular hollow pipe for mechanical arm, is obtained by said method.

The manufacture method of a kind of carbon fiber composite material rectangular hollow pipe of the present embodiment, provides the manufacture method of the carbon fiber composite material rectangular hollow pipe for mechanical arm that a kind of interior porosity is low, resin content is controlled and production efficiency is high, cost is low.Material therefor of the present invention is prepreg, relative to general carbon fibre composite arm, accurately can control the resin content of arm, reduces the porosity of arm inside.Select prepreg to be made up of unidirectional and fabric, the strength and stiffness that unidirectional pre-immersion material can provide primary load bearing direction larger, Fabric prereg paving, at the surfaces externally and internally of arm, can provide longitudinal strength and shear strength, can also provide surface more attractive in appearance.It is epoxy resin toughened for making prepreg resin used, anticollision or impact property good, cracking resistance line good extending performance, resin content is 35% ~ 45%.

The manufacture method of a kind of carbon fiber composite material rectangular hollow pipe of the present embodiment, provides that a kind of equipment investment is little, Making mold is simple, energy consumption is low, the cycle is short and can the novel process of automated production.The present invention by applying airbag 1 at inside parts, and utilizes press locked mode to heat, and oven post-cure not only saves expensive auxiliary materials expense, makes part pad pasting tightr simultaneously, ensure that the surface smoothness of part.

The manufacture method of a kind of carbon fiber composite material rectangular hollow pipe of the present embodiment, comprises the following steps:

Carbon fibre material is used to prepare core, for the lay-up process of part;

Purchase the mould for solidifying, mould is made up of patrix 2 and counterdie 3, and the counterdie 3 of mould is fixed on the workbench of moulding press, and patrix 2 is fixed on the slide block of moulding press, purchases the airbag 1 that the silica gel for inflating is made;

Core completes composite laying, after laying terminates, sloughs core, obtain part stock, be i.e. preform 4;

Airbag 1 is placed in part stock inner, part stock is placed in counterdie 3, and the joint 5 of airbag 1 is placed in mould mouth, and close patrix 2, and mold heated is steady temperature, and temperature is determined by prepreg curing mechanism;

Inflate airbag 1, pressure is 20% ~ 30% of maximum pressure, makes part stock fit to the die cavity of mould, simultaneously that the pressing of part stock is fine and close.Lose heart and then inflate, pressure is 50% ~ 60% of maximum pressure, then inflation of losing heart, until apply maximum pressure and keep maximum pressure to solidify.The disappointing number of times of inflation and the maximum pressure of applying suitably can be revised according to prepreg curing process; After having solidified, die sinking of losing heart, goods are placed in baking oven Post RDBMS, solidification temperature can with reference to prepreg curing mechanism; Obtain rectangle hollow tubing products.

Except above-mentioned case study on implementation, patented product of the present invention can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop in the protection domain of patent requirements of the present invention.

Claims (7)

1. the manufacture method of a carbon fiber composite material rectangular hollow pipe for mechanical arm, it is characterized in that: take carbon fibre composite as raw material, described carbon fibre composite is carbon fiber prepreg, described prepreg comprises unidirectional and Fabric prereg, adopts the orthogonal hollow pipe of mold pressing inflation legal system; Described mold pressing inflation method is specially: adopt carbon fiber prepreg laying on core to form preform, preform being sloughed core is placed in counterdie, airbag is placed in preform inside, close patrix, the joint of airbag outlet is fixed on mould mouth, inflates, die sinking after being heating and curing in airbag, and Post RDBMS in an oven, obtain rectangle hollow tubing products;
Inflation is carried out to airbag and adopts stage inflation, described stage inflation comprises once above inflation, described stage inflation is specially: the blowing pressure is 20% ~ 30% of maximum pressure first, makes preform fit to the die cavity of mould, simultaneously that preform pressing is fine and close; Inflate after losing heart, pressure is 50% ~ 60% of maximum pressure again, and inflation of losing heart is carried out in circulation, until apply maximum pressure 10bar-15bar and keep maximum pressure to be cured.
2. the manufacture method of carbon fiber composite material rectangular hollow pipe as claimed in claim 1, it is characterized in that: described airbag adopts high temperature resistant silica gel mantle, the outlet of described airbag is snap joint.
3. the manufacture method of carbon fiber composite material rectangular hollow pipe as claimed in claim 1, it is characterized in that: described patrix is fixed on the slide block of press, described counterdie is fixed on the workbench of press, and described press is heated to fixed temperature 120 DEG C-150 DEG C, and constant temperature keeps.
4. the manufacture method of carbon fiber composite material rectangular hollow pipe as claimed in claim 1, it is characterized in that: upper die and lower die are all fixed on press, adopt carbon fiber prepreg laying on core to form preform, preform is sloughed core and be placed in counterdie, airbag is placed in preform inside, close patrix, the joint of airbag outlet is fixed on mould mouth, inflates in airbag, and first time applies 3bar pressure in airbag, second time 6bar, third time 9-11bar; Pressure release after pressurize 3-5min after pressurization, again after inflation always pressurize system to solidifying end; Goods are placed in baking oven Post RDBMS by pressure releasing die sinking, rear curing time 2h, obtain rectangle hollow tubing products after solidification.
5. the manufacture method of carbon fiber composite material rectangular hollow pipe as described in any one of claim 1-4, is characterized in that: in described prepreg use resin to be epoxy resin toughened, in described prepreg, resin content is 35% ~ 45%.
6. the manufacture method of carbon fiber composite material rectangular hollow pipe as described in any one of claim 1-4, is characterized in that: the internal layer of described rectangle hollow pipe and skin Fabric prereg, the mid portion unidirectional pre-immersion material of described rectangle hollow pipe.
7. a carbon fiber composite material rectangular hollow pipe, is characterized in that: obtained by the manufacture method described in any one of claim 1-6.
CN201310543833.8A 2013-11-06 2013-11-06 Carbon fiber composite material rectangular hollow pipe for mechanical arm manufacture method CN103587124B (en)

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Publication number Priority date Publication date Assignee Title
CN103935048B (en) * 2014-03-17 2016-05-04 南通君彰复合材料科技有限公司 The preparation method of carbon fiber manipulator principal arm
CN104260365B (en) * 2014-08-08 2016-07-06 西安拓飞复合材料有限公司 A kind of manufacture method of antenna rib
CN104385620B (en) * 2014-09-12 2016-05-18 连云港神鹰碳纤维自行车有限责任公司 A kind of method of carbon fibre reinforced composite production machinery arm
CN105346099B (en) * 2015-10-29 2018-01-16 西安康本材料有限公司 A kind of preparation method of carbon fibre composite thin-wall curve pipe fitting
CN105523165A (en) * 2016-01-29 2016-04-27 上海翔鸿无人飞行器导航控制技术有限公司 Integrally molded unmanned aerial vehicle carbon fiber arm and preparation method thereof
CN105563851A (en) * 2016-02-04 2016-05-11 上海晋飞新材料科技有限公司 Moulding process for fuselage of UAV (Unmanned Aerial Vehicle)
CN108790211A (en) * 2017-04-28 2018-11-13 深圳光启高等理工研究院 Composite material air intake duct preparation method and composite material air intake duct
CN108749030B (en) * 2018-06-22 2020-01-21 广联航空工业股份有限公司 Method for preparing composite material pipe by using internal expansion method forming die
CN109318507A (en) * 2018-10-23 2019-02-12 西安康本材料有限公司 A kind of big L/D ratio carbon fibre reinforced pipe production mold and forming method

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CN2664891Y (en) * 2003-11-26 2004-12-22 山河森实业股份有限公司 Hollow open type or half-enclosed rod tube or cover piece
CN100496956C (en) * 2006-06-13 2009-06-10 明安国际企业股份有限公司 Bicycle wheel rim producing process
CN101691065B (en) * 2009-10-14 2011-08-17 上海理工大学 Process for forming artificial leg made of carbon fiber composite materials
CN102059800A (en) * 2010-10-29 2011-05-18 青岛科捷自动化设备有限公司 Processing method of carbon fiber sectional material

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Address after: 212314 Danyang City, Zhenjiang Province, Hong Kong Road on the north side of the road No. 777, No.

Applicant after: Jiangsu Heng Shen limited company

Address before: 212314 Danyang City, Zhenjiang Province, Hong Kong Road on the north side of the road No. 777, No.

Applicant before: Jiangsu Hengshen Fibre Materials Co., Ltd.