CN107649596B - A kind of electric pushrod assembly line nut inner tube automatic assembly equipment - Google Patents

A kind of electric pushrod assembly line nut inner tube automatic assembly equipment Download PDF

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Publication number
CN107649596B
CN107649596B CN201710933022.7A CN201710933022A CN107649596B CN 107649596 B CN107649596 B CN 107649596B CN 201710933022 A CN201710933022 A CN 201710933022A CN 107649596 B CN107649596 B CN 107649596B
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screw
closure
nut
riveting
slide unit
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CN201710933022.7A
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CN107649596A (en
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许东来
高凯
戴柯
司佳顺
李延胜
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Beijing University of Technology
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Beijing University of Technology
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D39/00Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders

Abstract

A kind of electric pushrod assembly line nut inner tube automatic assembly equipment belongs to assembly automation technical field.The device structure includes:Feeding device, positioning riveting device, workpiece lifting device, screw-closure device, straight line slide unit, mounting plate.Feeding device, workpiece lifting device, straight line slide unit are fixed on mounting plate, and positioning riveting device is respectively arranged in two on rail linearity slide unit with screw-closure device, and working plate is loaded with workpiece with conveyer belt movement in mounting plate lower section.The automatic assembly equipment Core Feature is to solve the problems, such as the automatic assembling techniques such as nut inner tube screws and sleeving and riveting is locking, and device core component is screw-closure device.The equipment is not only simple in structure, and meets the matching requirements of electric pushrod nut inner tube, while also achieving assembling process automation, improves safety and the production efficiency of the consistency, production process of product assembly quality.

Description

A kind of electric pushrod assembly line nut inner tube automatic assembly equipment
Technical field
The present invention is a kind of electric pushrod assembly line nut inner tube automatic assembly equipment, is related to automatic assembly equipment, is belonged to In assembly automation technical field.
Background technology
As electric pushrod is widely used in automobile, industrial plants, housed device, the automation of electric pushrod mounting technology Also become a kind of development trend.For the electric pushrod with nut inner tube, traditional handicraft complete assembly nut inner tube this Artificial or semi-automatic assembly is generally used when process, not only efficiency of assembling is low, product assembly quality consistency is difficult to ensure, but also The technical process such as the nut inner tube manually participated in screws, sleeving and riveting carry certain danger.Therefore it designs a kind of new full-automatic Nut inner tube assembly equipment is of great significance.
Invention content
For the Automated assembly problem of electric pushrod nut inner tube, the present invention provides a kind of electric pushrod assembly line use Nut inner tube automatic assembly equipment.
The matching requirements of electric pushrod nut inner tube are to revolve nut inner tube end internal thread and nut path section external screw thread It closes, locking to nut inner tube sleeving and riveting after the completion of screwing, riveting point is located at 3 groove locations for being distributed in circumference on nut.
Technical solution is used by the present invention solves the problems, such as electric pushrod nut inner tube automatic assembling:It is provided by the invention A kind of electric pushrod assembly line nut inner tube automatic assembly equipment primary structure includes feeding device, positioning riveting device, rises Falling unit, screw-closure device, screw-closure device straight line slide unit, positioning riveting device straight line slide unit and mounting plate, wherein device core portion Part is screw-closure device.
The screw-closure device, using be pressurized compression buffer spring as screw-closure device threaded engagement is provided needed for axial direction push away Power presets servo motor output torque value to adapt to screw required torque capacity;Rotary spanner circumferential recess feature simultaneously with light Electric switch catch circumferential position and nut riveting point circumferential position are corresponding, make optoelectronic switch catch circumferential position and riveting point circumference position Indirect correspondence is set, screw-closure device accurately looks for position to riveting point during realizing sleeving and riveting with this.
A kind of electric pushrod assembly line nut inner tube automatic assembly equipment, it is characterised in that:Including:Feeding device (1), It is straight to position riveting device (2), lifting gear (3), screw-closure device (4), screw-closure device straight line slide unit (501), positioning riveting device Line slide unit (502) and mounting plate (6);Feeding device (1), lifting gear (3), screw-closure device straight line slide unit (501), positioning sleeving and riveting Device straight line slide unit (502) is fixed on mounting plate (6), and screw-closure device (4) is respectively arranged in same rail with positioning riveting device (2) For the screw-closure device straight line slide unit (501) of road movement on positioning riveting device straight line slide unit (502), working plate is loaded with workpiece with biography Send band movement below mounting plate (6);Screw-closure device (4) includes:Slide unit guide rail (401), servo motor (402), buffer spring (403), slide (404), optoelectronic switch catch (405), clamping cylinder (406), pneumatic clamper (407) and rotary spanner (408);
Buffer spring (403) is arranged in screw-closure device (4) bottom, and buffer spring (403) connects slide (404), servo motor (402) driving rotary spanner (408) drives tooling sleeve (901) to rotate;Rotary spanner (408) and optoelectronic switch catch (405) It is fixedly connected, optoelectronic switch catch (405) is corresponding with rotary spanner (408) recess feature circumferential position, rotary spanner (408) Recess feature coordinates with tooling sleeve (901) flange feature circumference, and nut (902) is packed into tooling sleeve (901), nut (902) Three uniformly distributed riveting point C slots of outer surface are corresponding with tooling sleeve (901) flange feature circumferential position;Nut inner tube (904) is held Head internal thread is screwed with nut (902) path section external screw thread, and nut inner tube (904) is relative to the direction that screws of nut (902) Axis moves and axis rotation.
Using the method for the equipment, it is characterised in that:
Nut inner tube (904) is positioned through feeding device (1) feeding, positioning riveting device (2), and nut inner tube (904) screws End front end face reaches and is fixed on positioning riveting device (2) front end face;Workpiece is promoted to and is revolved by working plate by lifting gear (3) It attaches together and sets (4) main shaft coaxial position;
Screw-closure device straight line slide unit (501) drives screw-closure device (4) to be moved to workpiece, and screw-closure device (4) reaches workpiece and grabs Fetch bit is set, and servo motor (402) drives rotary spanner (408) to rotate, and makes rotary spanner (408) circumferential recess feature and tooling sleeve Cylinder (901) circumferential flange feature cooperation, servo motor (402) stalls after the completion of cooperation, clamping cylinder (406) work, pneumatic clamper (407) clamping tool sleeve (901);After lifting gear (3) release workpiece returns to initial position, screw-closure device straight line slide unit (501) it is moved toward one another simultaneously with positioning riveting device straight line slide unit (502), nut (902) flighting front end arrives at positioning sleeving and riveting dress (2) front end face is set, screw-closure device straight line slide unit (501) moves a distance further along at this time, and slide (404) keeps in situ, rotation It attaches together and sets (4) and moved afterwards along slide unit guide rail (401) relative to screw-closure device straight line slide unit (501), buffer spring (403) is pressurized pressure Contracting;After the movement in place of two slide units, pneumatic clamper (407) is unclamped, and servo motor (402) drives rotary spanner (408) to drive workpiece rotation, Buffer spring (403) because the compression that is pressurized applies the thrust parallel with main shaft axial direction to slide (404), make nut (902) and Nut inner tube (904) is with threaded engagement;Output torque value is preset to servo motor (402), required turn is loaded when screwing completion Square is more than or equal to preset torque value, and motor can not rotate, and screw completion;
After the completion of workpiece screws, positioning riveting device (2) unclamps nut inner tube (904), and servo motor (402) restores to turn It is dynamic;Tooling sleeve (901) flange feature is corresponding with nut (902) riveting point C slot circumferential positions, optoelectronic switch catch (405) with Rotary spanner (408) consolidates and optoelectronic switch catch (405) is corresponding with rotary spanner (408) recess feature circumferential position, rotation Turn spanner (408) recess feature with tooling sleeve (901) flange feature circumference to coordinate, therefore riveting point C slots circumferential position and photoelectricity Switch catch (405) circumferential position corresponds to indirectly;Screw-closure device (4) detects optoelectronic switch catch with wide groove type photoelectric switch (405) circumferential position looks for position to work nut (902) riveting point C slot circumferential positions accurately to realize, cooperation positioning riveting device (2) sleeving and riveting is carried out to riveting point;
After the completion of sleeving and riveting, servo motor (402) stalling, pneumatic clamper (407) clamping tool sleeve (901), screw-closure device straight line Position of the slide unit (501) with positioning riveting device straight line slide unit (502) while retrogressing to two slide units while before moving towards;Lifting Device (3) declines and clamps workpiece, and the pneumatic clamper (407) of screw-closure device (4) unclamps tooling sleeve (901), and screw-closure device straight line is slided Platform (501) is retreated to initial position;Workpiece is put back to working plate and returns to initial position by lifting gear (3), which has worked At.
A kind of electric pushrod assembly line provided by the present invention is not only simple in structure with nut inner tube automatic assembly equipment, full The matching requirements of sufficient electric pushrod nut inner tube, while also achieving assembling process automation.It compares traditional artificial or semi-automatic Assembly, the present invention improve the consistency of product assembly quality, the safety of production process and production efficiency.
Description of the drawings
Fig. 1 is the overall structure diagram of the present invention;
Fig. 2 is tooling sleeve, nut, nut inner tube relative motion schematic diagram;
Fig. 3 is the axonometric drawing of screw-closure device;
Fig. 4 is nut, tooling sleeve, rotary spanner, optoelectronic switch catch circular feature position correspondence figure;
In figure:Feeding device (1);Position riveting device (2);Lifting gear (3);Screw-closure device (4):Slide unit guide rail (401), servo motor (402), buffer spring (403), slide (404), optoelectronic switch catch (405), clamping cylinder (406), Pneumatic clamper (407), rotary spanner (408);Screw-closure device straight line slide unit (501), positioning riveting device straight line slide unit (502);Installation Plate (6);Tooling sleeve (901), nut (902), nut inner tube (904).
Specific implementation mode
The present invention will be further described with reference to the accompanying drawings.
A kind of structure of electric pushrod assembly line nut inner tube automatic assembly equipment includes mainly:Feeding device (1) is determined Position riveting device (2), lifting gear (3), screw-closure device (4), screw-closure device straight line slide unit (501), positioning riveting device straight line Slide unit (502), mounting plate (6).Feeding device (1), lifting gear (3), screw-closure device straight line slide unit (501), positioning sleeving and riveting dress It sets straight line slide unit (502) to be fixed on mounting plate (6), screw-closure device (4) is respectively arranged in same track with positioning riveting device (2) For the screw-closure device straight line slide unit (501) of movement on positioning riveting device straight line slide unit (502), working plate is loaded with workpiece with transmission Band movement is below mounting plate (6).(not embodied in working plate and conveyer belt figure).
Nut inner tube (904) is positioned through feeding device (1) feeding, positioning riveting device (2), and nut inner tube (904) screws End front end face reaches and is fixed on positioning riveting device (2) front end face.Workpiece is promoted to and is revolved by working plate by lifting gear (3) It attaches together and sets (4) main shaft coaxial position.
Screw-closure device straight line slide unit (501) drives screw-closure device (4) to be moved to workpiece, and screw-closure device (4) reaches workpiece and grabs Fetch bit is set, and servo motor (402) drives rotary spanner (408) to rotate, and makes rotary spanner (408) circumferential recess feature and tooling sleeve Cylinder (901) circumferential flange feature cooperation, servo motor (402) stalls after the completion of cooperation, clamping cylinder (406) work, pneumatic clamper (407) clamping tool sleeve (901).After lifting gear (3) release workpiece returns to initial position, screw-closure device straight line slide unit (501) it is moved toward one another simultaneously with positioning riveting device straight line slide unit (502), nut (902) flighting front end arrives at positioning sleeving and riveting dress (2) front end face is set, screw-closure device straight line slide unit (501) moves a distance further along at this time, and slide (404) keeps in situ, rotation It attaches together and sets (4) and moved afterwards along slide unit guide rail (401) relative to screw-closure device straight line slide unit (501), buffer spring (403) is pressurized pressure Contracting.After the movement in place of two slide units, pneumatic clamper (407) is unclamped, and servo motor (402) drives rotary spanner (408) to drive workpiece rotation, Buffer spring (403) because the compression that is pressurized applies the thrust parallel with main shaft axial direction to slide (404), make nut (902) and Nut inner tube (904) is with threaded engagement.Output torque value is preset to servo motor (402), required turn is loaded when screwing completion Square is more than or equal to preset torque value, and motor can not rotate, and screw completion.
After the completion of workpiece screws, positioning riveting device (2) unclamps nut inner tube (904), and servo motor (402) restores to turn It is dynamic.As shown in figure 4, tooling sleeve (901) flange feature is corresponding with nut (902) riveting point C slot circumferential positions, optoelectronic switch gear Piece (405) and rotary spanner (408) consolidation and optoelectronic switch catch (405) and rotary spanner (408) recess feature circumferential position Corresponding, rotary spanner (408) recess feature coordinates with tooling sleeve (901) flange feature circumference, therefore riveting point C slot circumference position It sets indirectly corresponding with optoelectronic switch catch (405) circumferential position.Screw-closure device (4) detects optoelectronic switch with wide groove type photoelectric switch Catch (405) circumferential position looks for position to work nut (902) riveting point C slot circumferential positions accurately to realize, cooperation positioning sleeving and riveting Device (2) carries out sleeving and riveting to riveting point.
After the completion of sleeving and riveting, servo motor (402) stalling, pneumatic clamper (407) clamping tool sleeve (901), screw-closure device straight line Position of the slide unit (501) with positioning riveting device straight line slide unit (502) while retrogressing to two slide units while before moving towards.Lifting Device (3) declines and clamps workpiece, and the pneumatic clamper (407) of screw-closure device (4) unclamps tooling sleeve (901), and screw-closure device straight line is slided Platform (501) is retreated to initial position.Workpiece is put back to working plate and returns to initial position by lifting gear (3), which has worked At.

Claims (2)

1. a kind of electric pushrod assembly line nut inner tube automatic assembly equipment, it is characterised in that:Including:Feeding device (1) is determined Position riveting device (2), lifting gear (3), screw-closure device (4), screw-closure device straight line slide unit (501), positioning riveting device straight line Slide unit (502) and mounting plate (6);Feeding device (1), lifting gear (3), screw-closure device straight line slide unit (501), positioning sleeving and riveting dress It sets straight line slide unit (502) to be fixed on mounting plate (6), screw-closure device (4) is respectively arranged in same track with positioning riveting device (2) For the screw-closure device straight line slide unit (501) of movement on positioning riveting device straight line slide unit (502), working plate is loaded with workpiece with transmission Band movement is below mounting plate (6);Screw-closure device (4) includes:Slide unit guide rail (401), servo motor (402), buffer spring (403), slide (404), optoelectronic switch catch (405), clamping cylinder (406), pneumatic clamper (407) and rotary spanner (408);
Buffer spring (403) is arranged in screw-closure device (4) bottom, and buffer spring (403) connects slide (404), servo motor (402) Drive rotary spanner (408) that tooling sleeve (901) is driven to rotate;Rotary spanner (408) and the fixed company of optoelectronic switch catch (405) It connects, optoelectronic switch catch (405) is corresponding with rotary spanner (408) recess feature circumferential position, and rotary spanner (408) recess is special Sign coordinates with tooling sleeve (901) flange feature circumference, and nut (902) is packed into tooling sleeve (901), nut (902) outer surface Three uniformly distributed riveting point C slots are corresponding with tooling sleeve (901) flange feature circumferential position;Spiral shell in nut inner tube (904) end Line is screwed with nut (902) path section external screw thread, and nut inner tube (904) is moved relative to the direction that screws of nut (902) for axis The rotation of dynamic and axis.
2. the method for application equipment as described in claim 1, it is characterised in that:
Nut inner tube (904) is positioned through feeding device (1) feeding, positioning riveting device (2), before nut inner tube (904) screws end End face reaches and is fixed on positioning riveting device (2) front end face;Workpiece is promoted to by working plate and is screwed dress by lifting gear (3) Set (4) main shaft coaxial position;
Screw-closure device straight line slide unit (501) drives screw-closure device (4) to be moved to workpiece, and screw-closure device (4) reaches workpiece grabbing position It sets, servo motor (402) drives rotary spanner (408) to rotate, and makes rotary spanner (408) circumferential recess feature and tooling sleeve (901) circumferential flange feature coordinates, and servo motor (402) stalls after the completion of cooperation, clamping cylinder (406) work, pneumatic clamper (407) Clamping tool sleeve (901);Lifting gear (3) unclamps after workpiece returns to initial position, screw-closure device straight line slide unit (501) with it is fixed Position riveting device straight line slide unit (502) moves toward one another simultaneously, and nut (902) flighting front end arrives at positioning riveting device (2) front end Face, at this time screw-closure device straight line slide unit (501) move a distance further along, slide (404) keeps in situ, screw-closure device (4) It is moved afterwards along slide unit guide rail (401) relative to screw-closure device straight line slide unit (501), buffer spring (403), which is pressurized, to be compressed;Two slide units are transported After moving in place, pneumatic clamper (407) is unclamped, and servo motor (402) drives rotary spanner (408) to drive workpiece rotation, buffer spring (403) because the compression that is pressurized applies slide (404) thrust parallel with main shaft axial direction, make nut (902) and nut inner tube (904) with threaded engagement;Output torque value is preset to servo motor (402), loaded when screwing completion needed for torque be more than etc. In preset torque value, motor can not rotate, and screw completion;
After the completion of workpiece screws, positioning riveting device (2) unclamps nut inner tube (904), and servo motor (402) restores rotation;Work Sleeved (901) flange feature is corresponding with nut (902) riveting point C slot circumferential positions, and optoelectronic switch catch (405) is pulled with rotation Hand (408) consolidates and optoelectronic switch catch (405) is corresponding with rotary spanner (408) recess feature circumferential position, rotary spanner (408) recess feature coordinates with tooling sleeve (901) flange feature circumference, therefore riveting point C slots circumferential position is kept off with optoelectronic switch Piece (405) circumferential position corresponds to indirectly;Screw-closure device (4) detects optoelectronic switch catch (405) circumference with wide groove type photoelectric switch Position looks for position to work nut (902) riveting point C slot circumferential positions accurately to realize, cooperation positioning riveting device (2) is to riveting point Carry out sleeving and riveting;
After the completion of sleeving and riveting, servo motor (402) stalling, pneumatic clamper (407) clamping tool sleeve (901), screw-closure device straight line slide unit (501) position with positioning riveting device straight line slide unit (502) while retrogressing to two slide units while before moving towards;Lifting gear (3) decline and clamp workpiece, the pneumatic clamper (407) of screw-closure device (4) unclamps tooling sleeve (901), screw-closure device straight line slide unit (501) it retreats to initial position;Workpiece is put back to working plate and returns to initial position by lifting gear (3), and equipment work is completed.
CN201710933022.7A 2017-10-10 2017-10-10 A kind of electric pushrod assembly line nut inner tube automatic assembly equipment Active CN107649596B (en)

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CN201710933022.7A CN107649596B (en) 2017-10-10 2017-10-10 A kind of electric pushrod assembly line nut inner tube automatic assembly equipment

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Application Number Priority Date Filing Date Title
CN201710933022.7A CN107649596B (en) 2017-10-10 2017-10-10 A kind of electric pushrod assembly line nut inner tube automatic assembly equipment

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Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2786374A (en) * 1950-04-24 1957-03-26 Kelsey Hayes Co Rivet inserting machine
CN202028734U (en) * 2011-02-18 2011-11-09 北汽福田汽车股份有限公司 Assembly fixture for truck frame assembly
CN103372611B (en) * 2012-04-18 2015-09-23 珠海格力电器股份有限公司 Pipe fitting is worn nut and is rushed riveting device
CN203508817U (en) * 2013-09-02 2014-04-02 东莞市佳铠精密金属制品有限公司 Hardware piece punch forming and nut riveting continuous production line
CN205341692U (en) * 2016-01-28 2016-06-29 重庆市炜瀚机械制造有限公司 Footboard pivot riveting set

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