CN102848279B - Full-automatic bidirectional pipe interior-exterior angle chamfering machine - Google Patents

Full-automatic bidirectional pipe interior-exterior angle chamfering machine Download PDF

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Publication number
CN102848279B
CN102848279B CN201210285439.4A CN201210285439A CN102848279B CN 102848279 B CN102848279 B CN 102848279B CN 201210285439 A CN201210285439 A CN 201210285439A CN 102848279 B CN102848279 B CN 102848279B
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CN
China
Prior art keywords
pipe
outside
bistrique
tubular axis
send
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Expired - Fee Related
Application number
CN201210285439.4A
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Chinese (zh)
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CN102848279A (en
Inventor
沈小毛
沈松月
杨永金
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Tengyun Refrigeration Technology Co Ltd
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Zhejiang Tengyun Refrigeration Technology Co Ltd
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Priority to CN201210285439.4A priority Critical patent/CN102848279B/en
Publication of CN102848279A publication Critical patent/CN102848279A/en
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Publication of CN102848279B publication Critical patent/CN102848279B/en
Expired - Fee Related legal-status Critical Current
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Abstract

The invention discloses a full-automatic bidirectional pipe interior-exterior angle chamfering machine. The chamfering machine comprises a stander, wherein a pipe to-be-conveyed box of a to-be-processed pipe is mounted on the stander, an unloading port is arranged at the bottom of the pipe to-be-conveyed box along a pipe placing direction, at least two pipe conveying shafts are arranged at the bottom of the pipe to-be-conveyed box in parallel and arranged along the direction vertical to the unloading port, spiral grooves are arranged on the pipe conveying shafts, an interior-exterior angle chamfering grinding apparatus capable of moving in or out is arranged at each side of two sides of the front end of each pipe conveying shaft, and the rear ends of the pipe conveying shafts are connected with a pipe conveying shaft driving apparatus. When the full-automatic bidirectional pipe interior-exterior angle chamfering machine works, the burr removing actions of inner pipes and outer pipes of pipe end heads can be realized only by orderly placing the pipes into the pipe to-be-conveyed box and starting each component, so that the operation is convenient, the complete automation of the grinding is realized, the manpower is saved, and the efficiency and the safety are improved.

Description

Beveler inside and outside a kind of full-automatic bidirectional pipe
Technical field
The present invention relates to a kind of pipe burr removal device, particularly beveler inside and outside a kind of full-automatic bidirectional pipe.
Background technology
Pipe, in cutting process, endoporus and cylindrical leaves certain burr, very complicated in pipe two ends deburring in the past, first will grind off burr on pipe cylindrical on abrasive machine; Then, bench drill boring with being held by pipe on drill bit, removing the burr in endoporus, both there is no operating efficiency like this, dangerous again.
Summary of the invention
Instant invention overcomes above-mentioned the deficiencies in the prior art, provide a kind of safe and efficient and beveler inside and outside the full-automatic bidirectional pipe effectively removing burr inside and outside tube end.
Technical scheme of the present invention is achieved in that
Beveler inside and outside a kind of full-automatic bidirectional pipe, this beveler comprises frame, frame is equipped with the pipe case to be sent placing pipe to be processed, feed opening is provided with along pipe placement direction bottom pipe case to be sent, bottom pipe case to be sent, be provided with at least two side by side send tubular axis, send tubular axis to arrange along perpendicular to feed opening direction, send tubular axis to be provided with helicla flute, send both sides, tubular axis front end to be respectively provided with an inside and outside chamfering grinding device that can retreat, send tubular axis rear end to connect and send tubular axis drive unit.
As preferably, the described tubular axis drive unit that send comprises mair motor, reduction box, splined shaft, transition power transmission shaft, mair motor passes through belt, belt pulley connects reduction box, management and control ratch is sent in the output shaft connection of reduction box, the described management and control ratch that send is gear with 1/1 to three/4th circumferential teeth, the described management and control ratch that send coordinates with the travelling gear on splined shaft, described transition power transmission shaft two ends are respectively equipped with bevel gear and transition gear, described transition gear engages with the axle tooth on splined shaft, also bevel gear is housed sending the rear end of tubular axis, the bevel gear of tubular axis is sent to engage with the bevel gear of transition power transmission shaft.Send management and control ratch to be gear with some tooth, forward to when engaging with the travelling gear on splined shaft when sending the tooth on management and control ratch, travelling gear drives splined shaft to rotate, then drives transition power transmission shaft and bevel gear, thus rotates and send tubular axis to send pipe.The pipe needing chamfering can be piled in pipe case to be sent, send tubular axis to be provided with the identical helicla flute of pipe diameter, just pipe can be released pipe case to be sent along helicla flute direction when sending tubular axis to rotate, then carry out next step grinding chamfering.
Pipe and chamfering is sent to be two alternating movements, retreat to control inside and outside chamfering grinding device, as preferably, the output shaft of reduction box is also connected with inside and outside chamfering grinding device advance and retreat control wheel, with the groove of 1/1 to three/4th circumference on the periphery of inside and outside chamfering grinding device advance and retreat control wheel, be provided with proximity switch on inside and outside chamfering grinding device advance and retreat control wheel side, described proximity switch connects inside and outside chamfering grinding device.When proximity switch is in the position relative with groove, inside and outside chamfering grinding device is for returning action, and when proximity switch is in relative with the part beyond groove, inside and outside chamfering grinding device is for carrying out grinding action near pipe.
As preferably, described inside and outside chamfering grinding device comprises cylinder, chamfering motor, motor cabinet, and chamfering motor is arranged on motor cabinet, and the substrate in motor cabinet and frame is slidably connected, described motor cabinet connects the piston rod of cylinder, and the output shaft of chamfering motor is connected with pipe sharpener.Inside and outside chamfering grinding device pulls motor to move back and forth by cylinder piston rod is flexible, does moving back and forth.
As preferably, described pipe sharpener comprises bistrique, be provided with the endoporus running through whole bistrique along bistrique length direction in bistrique, the groove that cross section is taper is had in the front end of bistrique, the front end side wall of bistrique circumferentially has the tube outer diameter grinding mouth that multiple tracks communicates with groove, bottom portion of groove communicates with endoporus, is equipped with ips chmfer bit in endoporus, and the front end of ips chmfer bit is exposed in groove.Ips chmfer bit carries out grinding to pipe in pipe, and groove and tube outer diameter grinding mouth carry out grinding to tube outer diameter, and in grinding process, burr is also run out of via tube outer diameter grinding mouth.
As preferably, bistrique sidewall is provided with ips chmfer bit fixed screw, internal diameter chmfer bit fixed screw offsets with ips chmfer bit after inserting bistrique sidewall.Ips chmfer bit can be locked like this, prevent it from producing play.
As preferably, be provided with set screw in bistrique rear end, described set screw screws in endoporus and ips chmfer bit rear end offsets.The turnover of such ips chmfer bit can be finely tuned, and can ensure the optimum efficiency of inside and outside chamfering like this.
Have employed the invention has the beneficial effects as follows of technique scheme:
When the present invention works, only pipe neatly need be put into pipe case to be sent, then open each parts, the deburring action of pipe termination inner and outer pipes can be realized, very convenient, achieve grinding full-automation, save artificial, improve efficiency, improve security.
Accompanying drawing explanation
Fig. 1 is the structural representation of beveler inside and outside full-automatic bidirectional pipe of the present invention;
Fig. 2 is the structural representation of other direction of the present invention;
Fig. 3 is the structural representation of pipe sharpener;
Fig. 4 is the A direction view of Fig. 3.
Detailed description of the invention
The specific embodiment of the present invention is as follows:
Embodiment: beveler inside and outside a kind of full-automatic bidirectional pipe, as shown in Fig. 1 ~ 2, this beveler comprises frame 1, frame 1 is equipped with the pipe case 2 to be sent placing pipe 31 to be processed, feed opening 3 is provided with along pipe 31 placement direction bottom pipe case 2 to be sent, bottom pipe case 2 to be sent, be provided with two side by side send tubular axis 4, tubular axis 4 is sent to arrange along perpendicular to feed opening 3 direction, tubular axis 4 is sent to be provided with helicla flute 5, the width of helicla flute 5 is identical with pipe 31 diameter, both sides, tubular axis 4 front end are sent respectively to be provided with an inside and outside chamfering grinding device that can retreat, send tubular axis 4 rear end to connect and send tubular axis drive unit, in order to the better fixing tube when chamfering grinding, be provided with a pipe briquetting 33 sending bottom the case 2 to be sent of the pipe directly over tubular axis 4 front end, prevent its generation from collecting together.
The described tubular axis drive unit that send comprises mair motor 6, reduction box 7, splined shaft 8, transition power transmission shaft 9, mair motor 6 connects reduction box 7 by belt 29, belt pulley 10, management and control ratch 11 is sent in the output shaft connection of reduction box 7, as shown in Figure 2, the described management and control ratch 11 that send is only with the gear of quadrant tooth 32, the described management and control ratch 11 that send coordinates with the travelling gear 12 on splined shaft 8, and splined shaft 8 two ends are fixed in frame 1 by bearing block 30; Described transition power transmission shaft 9 two ends are respectively equipped with bevel gear 13 and transition gear 14, described transition gear 14 engages with the axle tooth on splined shaft 8, send the rear end of tubular axis 4 that bevel gear 13 is also housed, send the bevel gear of tubular axis 4 to engage with the bevel gear of transition power transmission shaft 9.
As shown in Figure 2, the output shaft of reduction box 7 is also connected with inside and outside chamfering grinding device advance and retreat control wheel 15, with the groove 16 of quadrant on the periphery of inside and outside chamfering grinding device advance and retreat control wheel 15, be provided with proximity switch 17 on inside and outside chamfering grinding device advance and retreat control wheel 15 side, described proximity switch 17 connects inside and outside chamfering grinding device.
As shown in Figure 1, 2, described inside and outside chamfering grinding device comprises cylinder 18, chamfering motor 19, motor cabinet 20, chamfering motor 19 is arranged on motor cabinet 20, motor cabinet 20 is slidably connected with the substrate 21 in frame 1, described motor cabinet 20 connects the piston rod of cylinder 18, and the output shaft of chamfering motor 19 is connected with pipe sharpener by shaft coupling.
As shown in Figure 3,4, described pipe sharpener comprises bistrique 22, be provided with the endoporus 23 running through whole bistrique along bistrique length direction in bistrique 22, the groove 24 that cross section is taper is had in the front end of bistrique 22, the front end side wall of bistrique 22 circumferentially has the tube outer diameter grinding mouth 25 that 2 roads communicate with groove 24, tube outer diameter grinding mouth arranges along bistrique 22 length direction, communicate with endoporus 23 bottom groove 24, in endoporus 23, be equipped with ips chmfer bit 26, the front end of ips chmfer bit 26 is exposed in groove 24.
For the ease of fixing tube internal diameter chmfer bit 26, bistrique 22 sidewall is provided with ips chmfer bit fixed screw 27, offsets with ips chmfer bit 26 after internal diameter chmfer bit fixed screw 27 inserts bistrique 22 sidewall.
In order to regulate ips chmfer bit 26, be provided with set screw 28 in bistrique 22 rear end, described set screw 28 screws in endoporus and ips chmfer bit 26 rear end offsets.
Principle of the present invention and the course of work as follows:
First open the switch of chamfering motor, allow bistrique turn over.Then open mair motor drive the inside and outside chamfering grinding device advance and retreat control wheel on reduction box and send management and control ratch, inside and outside chamfering grinding device advance and retreat control wheel has specific male and fomale(M&F), and when inside and outside chamfering grinding device advance and retreat control wheel forwards raised position to, bistrique advance and retreat switch is " entering " bistrique work; When inside and outside chamfering grinding device advance and retreat control wheel forwards this one side of groove to, bistrique advance and retreat switch leaves workpiece quit work for " moving back " bistrique.
Send management and control ratch to be gear with quarter turn tooth, forward to when engaging with the travelling gear on splined shaft when sending the tooth on management and control ratch, travelling gear drives the travelling gear on splined shaft to rotate, then drives transition gear and bevel gear, thus rotates and send tubular axis to send pipe.
Pipe and chamfering is sent to be two alternating movements, start to send pipe after stopping sending pipe chamfering to complete during chamfering, the pipe needing chamfering can be piled in pipe case to be sent, tubular axis is sent to be provided with the similar helicla flute of pipe diameter, just pipe can be released pipe case to be sent along helicla flute direction when sending tubular axis to rotate, when pipe is sent to specific position, cylinder is released together with pipe sharpener chamfering motor respectively to pipe two-port, bistrique is put in the mouth of pipe and stops the regular hour, this time is the time sending management and control ratch to rotate 3/4 circumference, after ensureing that inside and outside burr is all removed, when proximity switch is relative with inside and outside chamfering grinding device advance and retreat control wheel groove, chamfering motor retracts by cylinder, send tubular axis to rotate pipe is sent, also the next pipe in case to be sent for pipe is delivered to the position of chamfering simultaneously, a working cycles terminates.
In addition; when needing the burr of the pipe of falling different length; also very simple; by substrate, splined shaft, transition power transmission shaft and send tubular axis to be arranged on a mobilizable slide block 34 separately; only need retube two pieces of baffle plates of case to be sent; one of them substrate mobile, splined shaft and one of them send tubular axis just passable, use easily; In addition, the travelling gear on splined shaft can also be designed to packaged type, moves travelling gear be so also fine according to tube length.

Claims (6)

1. beveler inside and outside a full-automatic bidirectional pipe, it is characterized in that: this beveler comprises frame, frame is equipped with the pipe case to be sent placing pipe to be processed, feed opening is provided with along pipe placement direction bottom pipe case to be sent, bottom pipe case to be sent, be provided with at least two side by side send tubular axis, send tubular axis along arranging perpendicular to feed opening direction, tubular axis is sent to be provided with helicla flute, send both sides, tubular axis front end to be respectively provided with an inside and outside chamfering grinding device that can retreat, send tubular axis rear end to connect and send tubular axis drive unit, the described tubular axis drive unit that send comprises mair motor, reduction box, splined shaft, transition power transmission shaft, mair motor passes through belt, belt pulley connects reduction box, management and control ratch is sent in the output shaft connection of reduction box, the described management and control ratch that send is gear with 1/1 to three/4th circumferential teeth, the described management and control ratch that send coordinates with the travelling gear on splined shaft, described transition power transmission shaft two ends are respectively equipped with bevel gear and transition gear, described transition gear engages with the axle tooth on splined shaft, also bevel gear is housed sending the rear end of tubular axis, the bevel gear of tubular axis is sent to engage with the bevel gear of transition power transmission shaft.
2. beveler inside and outside a kind of full-automatic bidirectional pipe according to claim 1, it is characterized in that: the output shaft of reduction box is also connected with inside and outside chamfering grinding device advance and retreat control wheel, with the groove of 1/1 to three/4th circumference on the periphery of inside and outside chamfering grinding device advance and retreat control wheel, be provided with proximity switch on inside and outside chamfering grinding device advance and retreat control wheel side, described proximity switch connects inside and outside chamfering grinding device.
3. beveler inside and outside a kind of full-automatic bidirectional pipe according to claim 1, it is characterized in that, described inside and outside chamfering grinding device comprises cylinder, chamfering motor, motor cabinet, chamfering motor is arranged on motor cabinet, substrate in motor cabinet and frame is slidably connected, described motor cabinet connects the piston rod of cylinder, and the output shaft of chamfering motor is connected with pipe sharpener.
4. beveler inside and outside a kind of full-automatic bidirectional pipe according to claim 3, it is characterized in that, described pipe sharpener comprises bistrique, be provided with the endoporus running through whole bistrique along bistrique length direction in bistrique, the groove that cross section is taper is had in the front end of bistrique, the front end side wall of bistrique circumferentially has the tube outer diameter grinding mouth that multiple tracks communicates with groove, bottom portion of groove communicates with endoporus, in endoporus, be equipped with ips chmfer bit, the front end of ips chmfer bit is exposed in groove.
5. beveler inside and outside a kind of full-automatic bidirectional pipe according to claim 4, it is characterized in that, bistrique sidewall is provided with ips chmfer bit fixed screw, and internal diameter chmfer bit fixed screw offsets with ips chmfer bit after inserting bistrique sidewall.
6. beveler inside and outside a kind of full-automatic bidirectional pipe according to claim 4, is characterized in that, be provided with set screw in bistrique rear end, and described set screw screws in endoporus and ips chmfer bit rear end offsets.
CN201210285439.4A 2012-08-10 2012-08-10 Full-automatic bidirectional pipe interior-exterior angle chamfering machine Expired - Fee Related CN102848279B (en)

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CN103406807A (en) * 2013-05-31 2013-11-27 江苏华阳管业股份有限公司 Device for grinding inner walls of straight pipes
CN103350379B (en) * 2013-07-26 2015-07-08 常州机电职业技术学院 Automatic pipe end trimming equipment
CN103495914B (en) * 2013-08-20 2015-09-23 安泰科技股份有限公司 Full-automatic inner circle facing attachment
CN105108601B (en) * 2015-09-02 2017-06-23 浙江腾云制冷科技有限公司 Chamfer machining equipment inside and outside a kind of materials in the tube two
CN105058192B (en) * 2015-09-02 2017-10-03 浙江腾云制冷科技有限公司 Chamfer machining mechanism inside and outside a kind of materials in the tube two
CN105904275A (en) * 2016-04-25 2016-08-31 江苏华阳金属管件有限公司 Feeding unit of straight pipe double-end chamfering machine
CN105856004A (en) * 2016-04-25 2016-08-17 江苏华阳金属管件有限公司 Feeding device of double-head chamfering machine for straight pipe
CN107160248B (en) * 2017-05-31 2019-06-18 重庆邮电大学 A kind of casing automatic chamfering sander
CN111715945B (en) * 2020-07-01 2022-05-06 山东华舜重工集团有限公司 Chamfering machine for chamfering special pipe
CN113690717A (en) * 2021-08-14 2021-11-23 广东速联科技术有限公司 Take sinle silk chamfer cutting equipment of delay relay electricity several function

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4760910A (en) * 1986-01-16 1988-08-02 Nippondenso Co., Ltd. Aligning and feeding apparatus for elongated pieces
CN2246042Y (en) * 1996-03-29 1997-01-29 李守孝 Grinding chamfering machine
CN2400216Y (en) * 1999-10-14 2000-10-11 孔凡云 Aligning cutting machine
US6206763B1 (en) * 1999-02-01 2001-03-27 Ohio Custom Machinery, Inc. Deburring machine
CN2582816Y (en) * 2002-09-20 2003-10-29 冯嫩妙 Tool grinding, chamfer device
CN2843737Y (en) * 2005-11-16 2006-12-06 河南中轴集团有限公司 Special chuck of centering drill
CN2855991Y (en) * 2005-10-31 2007-01-10 宝钢集团上海第一钢铁有限公司 Gross limit control structure
CN201261151Y (en) * 2008-09-18 2009-06-24 北京二七轨道交通装备有限责任公司 Sanding tool for self-adapting pipe kerf
CN101891065A (en) * 2010-07-14 2010-11-24 山东丽鹏股份有限公司 Pneumatic cover feeding and withdrawing device for horizontal single-head embossed machine or edge knurling machine
CN202684514U (en) * 2012-08-10 2013-01-23 浙江腾云制冷科技有限公司 Full-automatic bidirectional pipe internal-external chamfering machine

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4760910A (en) * 1986-01-16 1988-08-02 Nippondenso Co., Ltd. Aligning and feeding apparatus for elongated pieces
CN2246042Y (en) * 1996-03-29 1997-01-29 李守孝 Grinding chamfering machine
US6206763B1 (en) * 1999-02-01 2001-03-27 Ohio Custom Machinery, Inc. Deburring machine
CN2400216Y (en) * 1999-10-14 2000-10-11 孔凡云 Aligning cutting machine
CN2582816Y (en) * 2002-09-20 2003-10-29 冯嫩妙 Tool grinding, chamfer device
CN2855991Y (en) * 2005-10-31 2007-01-10 宝钢集团上海第一钢铁有限公司 Gross limit control structure
CN2843737Y (en) * 2005-11-16 2006-12-06 河南中轴集团有限公司 Special chuck of centering drill
CN201261151Y (en) * 2008-09-18 2009-06-24 北京二七轨道交通装备有限责任公司 Sanding tool for self-adapting pipe kerf
CN101891065A (en) * 2010-07-14 2010-11-24 山东丽鹏股份有限公司 Pneumatic cover feeding and withdrawing device for horizontal single-head embossed machine or edge knurling machine
CN202684514U (en) * 2012-08-10 2013-01-23 浙江腾云制冷科技有限公司 Full-automatic bidirectional pipe internal-external chamfering machine

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