CN106141370A - Crushing shaft tool rest Multifunctional spot-welding machine device people - Google Patents

Crushing shaft tool rest Multifunctional spot-welding machine device people Download PDF

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Publication number
CN106141370A
CN106141370A CN201510204875.8A CN201510204875A CN106141370A CN 106141370 A CN106141370 A CN 106141370A CN 201510204875 A CN201510204875 A CN 201510204875A CN 106141370 A CN106141370 A CN 106141370A
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CN
China
Prior art keywords
welding
clamping
welding gun
workpiece
stand
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Pending
Application number
CN201510204875.8A
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Chinese (zh)
Inventor
彭康益
戴江松
廖淦升
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Wide State Ronghe Plant Equipment Science And Technology Ltd
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Wide State Ronghe Plant Equipment Science And Technology Ltd
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Application filed by Wide State Ronghe Plant Equipment Science And Technology Ltd filed Critical Wide State Ronghe Plant Equipment Science And Technology Ltd
Priority to CN201510204875.8A priority Critical patent/CN106141370A/en
Publication of CN106141370A publication Critical patent/CN106141370A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a kind of crushing shaft tool rest Multifunctional spot-welding machine device people, including clamping mechanism, welding mechanism and controller, clamping mechanism includes support, track it is provided with on support, rotating clamp, cone device and clamping driving means, rotating clamp includes the rotation clamping stand being installed on support, rotate and chuck and the rotary drive motor driving chuck to rotate are installed on clamping stand, rotate the left support bracket being provided with support workpiece on clamping stand, left support bracket slides up and down and is installed on rotation clamping stand, cone device includes the addendum cone stand being slidably mounted on track, the addendum cone of clamping workpiece and the right support bracket of support workpiece are installed on addendum cone stand, right support bracket slides up and down and is installed on addendum cone stand, welding mechanism includes the welding gun on four-axle linked robot arm and robot arm.The present invention uses double pattern, artificial clamped one time, automatically arranges part, pickup, location, spot welding, welding robot system work in coordination with full weld whole crushing shaft tool rest.

Description

Crushing shaft tool rest Multifunctional spot-welding machine device people
Technical field
The present invention relates to technical field of welding equipment, especially one has supermatic crushing shaft tool rest Multifunctional spot-welding machine device people.
Background technology
Crushing shaft tool rest is the vitals of pulverizer, typically it is made up of axle, hollow pipe and Disintegrating knife, need during production to be welded in hollow pipe axle, being welded on the outer tube wall of hollow pipe by a number of Disintegrating knife, overall operation is loaded down with trivial details, and welding job amount is big again, domestic production crushing shaft tool rest typically uses human weld at present, so wasting time and energy, and the light radiation in welding process is also very big to the harm of operator, the demand of automated production crushing shaft tool rest is extremely urgent.
Summary of the invention
The invention aims to solve the defect of above-mentioned prior art, it is provided that one has supermatic crushing shaft tool rest Multifunctional spot-welding machine device people.
nullThe technical solution adopted for the present invention to solve the technical problems is: crushing shaft tool rest Multifunctional spot-welding machine device people,Including clamping mechanism、The controller that clamping mechanism described in the welding mechanism welding the workpiece of clamping on described clamping mechanism and electrical control works with described welding mechanism,Described clamping mechanism includes support,Horizontal track it is provided with on described support,One end of described track is installed with rotating clamp,The other end of described track is slidably fitted with cone device,Described support is also equipped with connecting and drive described cone device to make the clamping driving means closer or far from motion to described rotating clamp,Described rotating clamp includes the rotation clamping stand being fixedly installed on described support,Described rotation is provided with chuck and the rotary drive motor driving described chuck to rotate on clamping stand,Described rotation clamps the left support bracket being also equipped with support workpiece on stand,Described left support bracket previous-next is slidably mounted on described rotation on clamping stand,Described cone device includes the addendum cone stand being slidably mounted on described track,The right support bracket of the rotating addendum cone for clamping workpiece and support workpiece is installed on described addendum cone stand,Described right support bracket previous-next is slidably mounted on described addendum cone stand,It is mounted on, on described left support bracket and described right support bracket, the pair roller that support workpiece is freely rotatable,Described welding mechanism includes four-axle linked (upper and lower、Left and right、Gyration front and back and in plane) robot arm and the first welding gun of being installed on described four-axle linked robot arm,Described controller connects the described clamping mechanism of control and the equipment of welding mechanism.Wherein, described clamping driving means uses the lead screw transmission mechanism of driven by servomotor.
Described track is also slidably fitted with the second welding gun slide, the locking and regulating device locking described second welding gun sledge position is installed on described second welding gun slide, on described second welding gun slide, the second welding gun is installed, described second welding gun is slidably mounted on described second welding gun slide by slide, being also equipped with the welding gun driving means driving described second welding gun closer or far from workpiece on described second welding gun slide, described welding gun driving means uses the lead screw transmission mechanism of driven by servomotor.Wherein, the elongated hole adjustable plate of vertical direction it is also equipped with on described second welding gun slide, described second welding gun is connected by screw and is installed on described elongated hole adjustable plate, thus adjusts the height and position of the second welding gun, more preferable alignment pieces axis and the bound site of hollow pipe.More excellent, the quantity of described second welding gun is two, is respectively arranged at both sides, workpiece axle center.
It is also equipped with pair of parallel in the transverse-roller in workpiece axle center, the convenient lateral attitude adjusting workpiece on described left support bracket.
Also include automatic feed mechanism, described automatic feed mechanism includes storage tank, conveyer belt and material grasping folder, described material grasping folder is slidably mounted on described support by feeding slide, the slide rail of described feeding slide is set in parallel in described track side, according further to there being the feeding driving device driving described feeding slide to move back and forth on described support, described feeding driving device uses the lead screw transmission mechanism of driven by servomotor;Described material grasping folder is by two-axle interlocking mechanism according on described feeding slide, and described two-axle interlocking mechanism drives described material grasping folder vertically move back and forth or do closer or far from workpiece motion s.
The quantity of clamping mechanism and described welding mechanism is two, and two described welding mechanisms are installed in the middle of two described clamping mechanisms, are also equipped with dark slide in the middle of two described clamping mechanisms, is used for blocking welding arc light, protects operator.This dark slide uses dark brown transparent plexiglass plate.
The present invention has following beneficial effect relative to prior art: the crushing shaft tool rest Multifunctional spot-welding machine device people of the present invention is mainly used in the welding processing of crushing shaft tool rest, compensate for the domestic blank in agricultural mill axle tool rest process automation, use double pattern, artificial clamped one time, arranges part, pickup, location, spot welding, " specifying the requirement can the different spiral angle tool rest spacing etc. of teaching according to customer service " two welding robot arms work in coordination with full weld whole crushing shaft tool rest automatically.nullBeing combined on original efficiency basis of whole system improves more than 2 times,The spacing using servo-positioning tool rest is more accurate,It is higher that the crushing piece taking single centre bore knife edge installs room concentricity,Dual robot is worked in coordination with welding and is greatly reduced the welding machine molding cycle of product,Double has made full use of the interval running between robot and pickup spot welding system,Reach people's not (referring to low labour force and labor intensity) machine product quality endlessly to be guaranteed,Thus improve efficiency and reduce the input reduction cost of operation and equipment,The flexible design of equipment is also a big demand in current market,Frock transmutability positions,The variation of Pneumatic tailstock flexibility (takes pneumatic upset,Live centre is coordinated to rotate),The variable teaching of helix (system setting),Servo-positioning pickup,Flexible compensation function etc.,The automatic discharge device that it uses,Take the crucial part of single work spot welding,Realize the constant direction arrangement of tool rest,Utilize mechanical mechanism running to realize pickup location and reach auto arrangement spot welding effect,Removal device uses flexible limit at least to meet the tool rest of two kinds of specifications,Use double tripper,One drag two straight line removal device,Its market demand is met according to part slide unit in tool rest width specifications scalable.This equipment has vast versatility, meets the high-volume small batch of different product and the processing of multiple batches of small lot.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic perspective view of the present invention;
Fig. 2 is clamping mechanism and the automatic feed mechanism connection schematic perspective view of the present invention;
Fig. 3 is the enlarged drawing of A marked position in Fig. 2;
Fig. 4 is the enlarged drawing of B marked position in Fig. 2;
Fig. 5 is the enlarged drawing of C marked position in Fig. 2;
Fig. 6 is the second welding gun slide carriage structure schematic diagram of the present invention;
Fig. 7 is the locking and regulating device structural representation of the present invention.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the crushing shaft tool rest Multifunctional spot-welding machine device people of the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
nullAs shown in figs 1 to 6,Crushing shaft tool rest Multifunctional spot-welding machine device people,Including clamping mechanism 1、Welding mechanism 2 and controller 3,Described welding mechanism 2 is installed on clamping mechanism 1 side,The workpiece of clamping on clamping mechanism 1 is carried out weld job,Controller 3 electrical connection controls described clamping mechanism 1 and works with described welding mechanism 2,Described clamping mechanism 1 includes support 11,Horizontal track 111 it is provided with on described support 11,One end of described track 111 is installed with rotating clamp 12,The other end of described track 111 is slidably fitted with cone device 13,Described support 11 is also equipped with connecting and drive described cone device 13 to make the clamping driving means closer or far from motion to described rotating clamp 12,Described rotating clamp 12 includes the rotation clamping stand 121 being fixedly installed on described support 11,Described rotation is provided with chuck 122 and the rotary drive motor 123 driving described chuck 122 to rotate on clamping stand 121,Described chuck 122 uses scroll chuck,It is mainly used in the rotating shaft of clamping workpiece;nullDescribed rotation clamps the left support bracket 124 being also equipped with support workpiece hollow tube section on stand 121,Described left support bracket 124 previous-next is slidably mounted on described rotation on clamping stand 121,Described cone device 13 includes the addendum cone stand 131 being slidably mounted on described track 111,Rotating addendum cone 132 for workpiece rotating shaft of bearing down on one and the right support bracket 133 of support workpiece hollow tube section are installed on described addendum cone stand 131,Described right support bracket 133 previous-next is slidably mounted on described addendum cone stand 131,It is mounted on, on described left support bracket 124 and described right support bracket 133, the pair roller that support workpiece is freely rotatable,Described welding mechanism 2 includes four-axle linked (upper and lower、Left and right、Gyration front and back and in plane) robot arm and the first welding gun of being installed on described four-axle linked robot arm,Described controller 3 connects the described clamping mechanism of control and the equipment of welding mechanism.Wherein, described clamping driving means uses the lead screw transmission mechanism of driven by servomotor.
nullDescribed track 111 is also slidably fitted with the second welding gun slide 14,The locking and regulating device 141 locking described second welding gun sledge position is installed on described second welding gun slide 14,This locking and regulating device 141 is rack and pinion engagement retaining mechanism,Including being parallel to the tooth bar of track 111 setting and being installed on the gear on the second welding gun slide 14,With locking, the second welding gun slide 14 is carried out the adjustment on position by engagement each other,On described second welding gun slide 14, second welding gun 142 is installed,Described second welding gun 142 is slidably mounted on described second welding gun slide 14 by slide 143,The welding gun driving means driving described second welding gun 142 closer or far from workpiece it is also equipped with on described second welding gun slide 14,Described welding gun driving means uses the lead screw transmission mechanism of driven by servomotor.Wherein, the elongated hole adjustable plate 144 of vertical direction it is also equipped with on described second welding gun slide 14, described second welding gun 14 is connected by screw and is installed on described elongated hole adjustable plate 144, thus adjusts the height and position of the second welding gun 142, more preferable alignment pieces axis and the bound site of hollow pipe.More excellent, the quantity of described second welding gun 142 is two, is respectively arranged at both sides, workpiece axle center.
It is also equipped with pair of parallel in the transverse-roller 125 in workpiece axle center, the convenient lateral attitude adjusting workpiece on described left support bracket 124.
Also include automatic feed mechanism 4, described automatic feed mechanism 4 includes storage tank 41, conveyer belt 42 and material grasping folder 43, described material grasping folder 43 is slidably mounted on described support 11 by feeding slide 44, the slide rail of described feeding slide 44 is set in parallel in described track side, according further to there being the feeding driving device driving described feeding slide 44 to move back and forth on described support 11, described feeding driving device uses the lead screw transmission mechanism of driven by servomotor;Described material grasping folder 43 is by two-axle interlocking mechanism according on described feeding slide 44, and described two-axle interlocking mechanism drives described material grasping folder vertically move back and forth or do closer or far from workpiece motion s.
The quantity of clamping mechanism 1 and described welding mechanism 2 is two, and two described welding mechanisms 2 are installed in the middle of two described clamping mechanisms 1, are also equipped with dark slide 5, are used for blocking welding arc light, protect operator in the middle of two described clamping mechanisms 1.This dark slide 5 uses dark brown transparent plexiglass plate.
The above; it is only patent preferred embodiment of the present invention; but the protection domain of patent of the present invention is not limited thereto; any those familiar with the art is in the scope disclosed in patent of the present invention; technical scheme and patent of invention thereof according to patent of the present invention conceive equivalent or change in addition, broadly fall into the protection domain of patent of the present invention.

Claims (9)

  1. null1. crushing shaft tool rest Multifunctional spot-welding machine device people,It is characterized in that,Including clamping mechanism、The controller that clamping mechanism described in the welding mechanism welding the workpiece of clamping on described clamping mechanism and electrical control works with described welding mechanism,Described clamping mechanism includes support,Horizontal track it is provided with on described support,One end of described track is installed with rotating clamp,The other end of described track is slidably fitted with cone device,Described support is also equipped with connecting and drive described cone device to make the clamping driving means closer or far from motion to described rotating clamp,Described rotating clamp includes the rotation clamping stand being fixedly installed on described support,Described rotation is provided with chuck and the rotary drive motor driving described chuck to rotate on clamping stand,Described rotation clamps the left support bracket being also equipped with support workpiece on stand,Described left support bracket previous-next is slidably mounted on described rotation on clamping stand,Described cone device includes the addendum cone stand being slidably mounted on described track,The right support bracket of the rotating addendum cone for clamping workpiece and support workpiece is installed on described addendum cone stand,Described right support bracket previous-next is slidably mounted on described addendum cone stand,It is mounted on, on described left support bracket and described right support bracket, the pair roller that support workpiece is freely rotatable,Described welding mechanism includes four-axle linked robot arm and is installed on described four-axle linked robot arm the first welding gun welding the workpiece on described clamping mechanism.
  2. Crushing shaft tool rest Multifunctional spot-welding machine device people the most according to claim 1, it is characterized in that, described track is also slidably fitted with the second welding gun slide, the locking and regulating device locking described second welding gun sledge position is installed on described second welding gun slide, on described second welding gun slide, the second welding gun is installed, described second welding gun is slidably mounted on described second welding gun slide by slide, the welding gun driving means driving described second welding gun closer or far from workpiece it is also equipped with on described second welding gun slide, described welding gun driving means uses the lead screw transmission mechanism of driven by servomotor.
  3. Crushing shaft tool rest Multifunctional spot-welding machine device people the most according to claim 2, it is characterized in that, being also equipped with the elongated hole adjustable plate of vertical direction on described second welding gun slide, described second welding gun is connected by screw and is installed on described elongated hole adjustable plate, thus adjusts the height and position of the second welding gun.
  4. 4. according to the crushing shaft tool rest Multifunctional spot-welding machine device people described in Claims 2 or 3, it is characterised in that the quantity of described second welding gun is two, is respectively arranged at both sides, workpiece axle center.
  5. Crushing shaft tool rest Multifunctional spot-welding machine device people the most according to claim 1, it is characterised in that be also equipped with pair of parallel in the transverse-roller in workpiece axle center on described left support bracket.
  6. Crushing shaft tool rest Multifunctional spot-welding machine device people the most according to claim 1 and 2, it is characterized in that, also include automatic feed mechanism, described automatic feed mechanism includes storage tank, conveyer belt and material grasping folder, described material grasping folder is slidably mounted on described support by feeding slide, the slide rail of described feeding slide is set in parallel in described track side, according further to there being the feeding driving device driving described feeding slide to move back and forth on described support, described feeding driving device uses the lead screw transmission mechanism of driven by servomotor.
  7. Crushing shaft tool rest Multifunctional spot-welding machine device people the most according to claim 6, it is characterized in that, described material grasping folder is by two-axle interlocking mechanism according on described feeding slide, and described two-axle interlocking mechanism drives described material grasping folder vertically move back and forth or do closer or far from workpiece motion s.
  8. Crushing shaft tool rest Multifunctional spot-welding machine device people the most according to claim 1, it is characterised in that the quantity of clamping mechanism is two, is also equipped with dark slide in the middle of two described clamping mechanisms.
  9. Crushing shaft tool rest Multifunctional spot-welding machine device people the most according to claim 1, it is characterised in that described clamping driving means uses the lead screw transmission mechanism of driven by servomotor.
CN201510204875.8A 2015-04-28 2015-04-28 Crushing shaft tool rest Multifunctional spot-welding machine device people Pending CN106141370A (en)

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Application Number Priority Date Filing Date Title
CN201510204875.8A CN106141370A (en) 2015-04-28 2015-04-28 Crushing shaft tool rest Multifunctional spot-welding machine device people

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Application Number Priority Date Filing Date Title
CN201510204875.8A CN106141370A (en) 2015-04-28 2015-04-28 Crushing shaft tool rest Multifunctional spot-welding machine device people

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107052647A (en) * 2017-04-17 2017-08-18 宁晋县昱恒机械制造有限公司 Bonding machine applied to axial workpiece
CN107335895A (en) * 2017-06-30 2017-11-10 太仓市华天冲压五金制品厂 A kind of durable type spot-welding equipment for intermetallic composite coating
CN110315254A (en) * 2018-03-29 2019-10-11 中国科学院沈阳自动化研究所 High pressure collector pipe flexible intelligent welding workstation based on dual robot
CN110369920A (en) * 2019-08-16 2019-10-25 天津市奥特威德焊接技术有限公司 A kind of multi-point automatic spot special plane
CN112692407A (en) * 2019-10-23 2021-04-23 山东轩烨机器人科技有限公司 Robot workstation that backing roll scaffold weldment was used

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4323758A (en) * 1978-12-18 1982-04-06 IGM-Industriegerate und Maschinenfabriks-Gesellschaft mbH Universal control structure for welding devices of an automatic welding machine
US20030099522A1 (en) * 2000-04-28 2003-05-29 Joachim Laempe Device for mechanically rough machining and/or finish machining cast parts
CN102513677A (en) * 2011-12-30 2012-06-27 长城汽车股份有限公司 Four-axis linkage automatic spot welding machine
CN202684383U (en) * 2012-08-16 2013-01-23 宁波市拓新焊接技术有限公司 Welding device for stirring bucket
CN202861676U (en) * 2012-09-28 2013-04-10 天津博信汽车零部件有限公司 Full-automatic multipoint spot welding apparatus
CN203266103U (en) * 2013-05-03 2013-11-06 徕斯机器人(昆山)有限公司 Steel tube robot welding device
CN104416270A (en) * 2013-09-11 2015-03-18 丁泽有限公司 Mount for a welding gun for connecting said welding gun to an arm of a welding robot
CN104439807A (en) * 2014-11-27 2015-03-25 佛山市南海耀达建材有限公司 Full-automatic welding workstation and method

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4323758A (en) * 1978-12-18 1982-04-06 IGM-Industriegerate und Maschinenfabriks-Gesellschaft mbH Universal control structure for welding devices of an automatic welding machine
US20030099522A1 (en) * 2000-04-28 2003-05-29 Joachim Laempe Device for mechanically rough machining and/or finish machining cast parts
CN102513677A (en) * 2011-12-30 2012-06-27 长城汽车股份有限公司 Four-axis linkage automatic spot welding machine
CN202684383U (en) * 2012-08-16 2013-01-23 宁波市拓新焊接技术有限公司 Welding device for stirring bucket
CN202861676U (en) * 2012-09-28 2013-04-10 天津博信汽车零部件有限公司 Full-automatic multipoint spot welding apparatus
CN203266103U (en) * 2013-05-03 2013-11-06 徕斯机器人(昆山)有限公司 Steel tube robot welding device
CN104416270A (en) * 2013-09-11 2015-03-18 丁泽有限公司 Mount for a welding gun for connecting said welding gun to an arm of a welding robot
CN104439807A (en) * 2014-11-27 2015-03-25 佛山市南海耀达建材有限公司 Full-automatic welding workstation and method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107052647A (en) * 2017-04-17 2017-08-18 宁晋县昱恒机械制造有限公司 Bonding machine applied to axial workpiece
CN107335895A (en) * 2017-06-30 2017-11-10 太仓市华天冲压五金制品厂 A kind of durable type spot-welding equipment for intermetallic composite coating
CN110315254A (en) * 2018-03-29 2019-10-11 中国科学院沈阳自动化研究所 High pressure collector pipe flexible intelligent welding workstation based on dual robot
CN110369920A (en) * 2019-08-16 2019-10-25 天津市奥特威德焊接技术有限公司 A kind of multi-point automatic spot special plane
CN112692407A (en) * 2019-10-23 2021-04-23 山东轩烨机器人科技有限公司 Robot workstation that backing roll scaffold weldment was used

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