CN101745802B - Torque-control multishaft bolt tightening machine - Google Patents
Torque-control multishaft bolt tightening machine Download PDFInfo
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- CN101745802B CN101745802B CN2008102295172A CN200810229517A CN101745802B CN 101745802 B CN101745802 B CN 101745802B CN 2008102295172 A CN2008102295172 A CN 2008102295172A CN 200810229517 A CN200810229517 A CN 200810229517A CN 101745802 B CN101745802 B CN 101745802B
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- speed changer
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Abstract
The invention relates to bolt tightening devices, in particular to a torque-control multishaft bolt tightening machine which comprises a driving device, a gear box, an intermediate shaft, torque limiters and a tightening head, wherein one end of the intermediate shaft is connected with the driving device, and the other end penetrates out of the gear box; the outputs of the gear box are provided with transmission shafts, each transmission shaft is connected with an output shaft through the torque limiter, the other end of each output shaft is provided with a fixed plate, the output shaft at the end is connected with one end of a universal shaft after penetrating through the fixed plate, the other end of the universal shaft is connected with a template, and the tightening head is connected with the universal shaft through the template; and the template is provided with a limit switch, and one side of the limit switch is provided with a sensor fixedly connected on the template. The invention has the advantages of high efficiency, simple structure, high integration level, strong adaptability, wide application range and the like, and can realize multiple functions of reverse rotation, control on magnitude of moment, speed regulation and the like.
Description
Technical field
The present invention relates to the bolt device for screwing up, specifically a kind of torque-control multishaft bolt tightening machine.
Background technology
Usually assembling line equipment is various, technical sophistication, and the tightening machine instrument kind of being selected for use is a lot, is broadly divided into electronic single shaft tightening machine, three kinds of electronic multiple-shaft tightening machine and pneumatic single shaft tightening machine etc.Electronic multiple-shaft tightening machine major part is through the belt pulley transferring power; Electronic single shaft tightening machine is made up of rotor and stator, tightens workpiece through rotor rotation; Pneumatic single shaft tightening machine is to blow the impeller rotation through air-flow, and when impeller stopped operating, air communication was crossed the pressure-relief valve decompression, realizes the protection to tightening machine.When the assembling workpiece perhaps approaches same plane in same working face; And the number of bolt a lot of again the time, if use the single shaft tightening machine operating efficiency will be very low, the moment of torsion of tappet head be controlled by the people; The precision and the quality of workpiece had both been influenced; The workman operates also very inconvenient, and has strengthened workman's the amount of labour, has a strong impact on work tempo.And, have only the quantity that increases the workman to remedy the deficiency of functions of the equipments in order not influence job schedule, so increased production cost undoubtedly, and because the increase of number of workers also can cause not manageability and control.
At present; A lot of assembling lines press for the machine for setting multi-rod screw equipment that adopts moment of torsion can regulate control; Automotive transmission assembling line for example just need be used 14 perhaps bolt screwing machines of multiaxis more, therefore during the workpiece assembling; How both to have guaranteed workpiece quality, increasing work efficiency has again become problem demanding prompt solution.
Summary of the invention
In order to solve the problem of above-mentioned existence, the object of the present invention is to provide the torque-control multishaft bolt tightening machine that a kind of efficient is high, automaticity is high, workpiece quality is good, be applicable to the application of high-level assembling line.
The objective of the invention is to realize through following technical scheme:
The present invention includes drive unit, speed changer case, jackshaft, torque limiter and tappet head, an end of jackshaft links to each other with drive unit, and the other end is passed by the speed changer case; The output of speed changer case has power transmission shaft; Each power transmission shaft all is connected with output shaft through torque limiter; The other end of output shaft is provided with fixed head; The output shaft of this end is passed, is linked to each other with an end of universal drive shaft by fixed head, and the other end of universal drive shaft is connected with template, and tappet head is passed with universal drive shaft by template and is connected; Limit switch is installed on template, and a side of limit switch is provided with the sensor that is fixed on the template.
Wherein: the part that said jackshaft is positioned at the speed changer case is equipped with idler gear; Periphery inner at the speed changer case, jackshaft is provided with a plurality of transition axises that have transition gear, and transition gear is meshed with idler gear; The periphery of transition axis is provided with a plurality of power transmission shafts that have travelling gear, and travelling gear is meshed with transition gear; The two ends of transition axis are installed on the speed changer case, and both ends are equipped with the hubcap that is fixed on the speed changer case; One end of power transmission shaft is installed on the speed changer case, and the end is provided with the hubcap that is fixed on the speed changer case, and the other end of power transmission shaft is passed by the speed changer case; Transition axis, power transmission shaft, output shaft, universal drive shaft and tappet head are a plurality of, and number is identical; Said torque limiter comprises first flange, axle sleeve, ring-type piece and near switch, first flange is installed on the power transmission shaft, with the power transmission shaft interlock, axle sleeve be socketed in output shaft an end and with the first flange Joint; Fixed head is provided with a plurality of bearing fixed seats, and the other end of output shaft passes bearing fixed seat successively, fixed head is connected with universal drive shaft; The ring-type piece is installed on the output shaft, is fixed on the bearing fixed seat, is positioned at a side of ring-type piece near switch; The ring-type piece is the concavo-convex tooth-shape structure that is uniformly distributed with, and constitutes the signal space zone that " detecting distance " is interior and " detecting distance " is outer, is installed in the double wedge and the recessed tooth periphery of ring-type piece near switch; The other end of said universal drive shaft is provided with second flange that is fixed on the template, and tappet head passes template, is connected with universal drive shaft through second flange; Be provided with connecting rod between fixed head and the template; Have the 3rd locating hole and a plurality of and corresponding second locating hole of tappet head of first locating hole of ccontaining limit switch, ccontaining connecting rod on the template; Limit switch is provided with back-moving spring.
Advantage of the present invention and good effect are:
The present invention has overcome well that the automaticity of tightening machine equipment and instrument is low in the prior art, efficient is low, cost and operating cost high deficiency, has solved the problem that assembling line does not for a long time have torque-control multishaft bolt tightening machine well.Be specially:
1. automaticity is high.The present invention can the on-line automatic operation of unmanned, through the control of control system, is beneficial to automation control, has replaced a large amount of duplications of labour.
2. efficient is high.Adopted universal drive shaft in the structure of the present invention, the bolt head that can provide certain torque value to tighten a plurality of irregular alignments simultaneously, and, improved operating efficiency through Template Location.
3. overload protection.The present invention can set torque value through torque adjustment control, has realized the control of torque, speed speed, avoids overload.
4. the present invention is simple in structure, and integrated level is high, can realize rotating, and multiaxis moves simultaneously.
5. flexibility and reliability of the present invention, different according to workpiece, adjust template and regulate torque limiter with suitable various workpieces, flexible operation, tighten accurately and reliably the location.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the structural representation of template among Fig. 1;
Fig. 3 is an operation principle sketch map of the present invention;
Fig. 4 is the structural representation of ring-type piece among Fig. 1;
Fig. 5 is a control system flow chart of the present invention;
Wherein: 1 is motor, and 2 is decelerator, and 3 is the decelerator seat, and 4 is hubcap, and 5 is the speed changer case, and 6 is transition axis; 7 is transition gear, and 8 is first flange, and 9 is axle sleeve, and 10 is output shaft, and 11 is the ring-type piece, and 12 is near switch; 13 is universal drive shaft, and 14 is connecting rod, and 15 is template, and 16 is tappet head, and 17 is limit switch, and 18 is back-moving spring; 19 is second flange, and 20 is sensor, and 21 is fixed head, and 22 is bearing fixed seat, and 23 is torque limiter, and 24 is power transmission shaft; 25 is travelling gear, and 26 is idler gear, and 27 is jackshaft, and 28 is first locating hole, and 29 is second locating hole, and 30 is the 3rd locating hole; 31 is cylinder, and 32 is pulley, and 33 is balancing weight, and 34 is lathe bed, and 35 is workbench.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is made further detailed description.
As shown in Figure 1, the present invention includes drive unit, speed changer case 5, jackshaft 27, torque limiter 23 and tappet head 16, drive unit is made up of motor 1, decelerator 2 and decelerator seat 3.Decelerator 2 is installed on the decelerator seat 3, and motor 1 links to each other with decelerator 2.One end of jackshaft 27 with link to each other with motor 1 through decelerator 2, the other end is passed by the speed changer case 5 that is positioned at decelerator 2 belows, decelerator seat 3 is fixed on the speed changer case 5; The part that jackshaft 27 is positioned at speed changer case 5 is connected with idler gear 26; Be provided with a plurality of transition axises 6 (present embodiment is 14) in the periphery of speed changer case 5 inside, jackshaft 27; All establish transition gear 7 on each transition axis 6; Each transition gear 7 all is meshed with idler gear 26, staggers respectively in each transition gear 7 position on transition axis 6, bumps mutually when avoiding with idler gear 26 engaged transmission; Speed changer case 5 peripheries interior, transition axis 6 are provided with a plurality of corresponding power transmission shafts 24 (i.e. corresponding power transmission shaft of transition axis); Be equipped with travelling gear 25 on each power transmission shaft 24 with transition gear 7 engaged transmission; Respectively wrong day of the position of each travelling gear 25 on power transmission shaft 24 bumps mutually when avoiding with transition gear 7 engaged transmission.The two ends of transition axis 6 are installed on the speed changer case 5, and both ends are equipped with the hubcap 4 that is fixed on the speed changer case 5, carry out seal protection through hubcap 4; One end of power transmission shaft 24 is installed on the speed changer case 5, and the end is provided with the hubcap 4 that is fixed on the speed changer case 5, carries out seal protection through hubcap 4, and the other end of power transmission shaft 24 is passed by speed changer case 5, is connected with torque limiter 23.One end of output shaft 10 is connected with power transmission shaft 24 through torque limiter 23, and the other end is provided with fixed head 21, the output shaft of this end by fixed head 21 pass, hinged with an end of universal drive shaft 13, fixed head 21 is positioned at the top of output shaft 10 and universal drive shaft 13 hinged places.Torque limiter 23 comprise first flange 8, axle sleeve 9, ring-type piece 11 and near switch 12, the first flanges 8 be installed on the power transmission shaft 24, with power transmission shaft 24 interlocks, axle sleeve 9 be socketed in output shaft 10 an end and with first flange, 8 Joints; Fixed head 21 is provided with a plurality of bearing fixed seats 22, and in order to fixing output shaft 10, the other end of output shaft 10 passes behind bearing fixed seat 22 and the fixed head 21 hinged with an end of universal drive shaft 13 more successively; On the output shaft above the bearing fixed seat 22 10, be provided with ring-type piece 11, a side of ring-type piece 11 be provided be fixed on the bearing fixed seat 22 near switch 12.As shown in Figure 4, the concavo-convex tooth-shape structure of ring-type piece 11 for being uniformly distributed with constitutes the signal space zone that " detecting distance " is interior and " detecting distance " is outer, is installed in the double wedge and the recessed tooth periphery of ring-type piece 11 near switch 12.One end and the output shaft 10 of universal drive shaft 13 are hinged, and the other end is provided with second flange, 19, the second flanges 19 and is installed on the template 15, and tappet head 16 passes template 15, is connected with Universal-head 13 through second flange 19.Limit switch 17 is installed on template 15, and limit switch 17 is provided with back-moving spring 18; Be provided with connecting rod 14 between fixed head 21 and the template 15, can prevent that tappet head 16 from rocking when tightening; The top of limit switch 17 1 sides is provided with sensor 20, and sensor 20 is installed on the template 15 through sensor holder.As shown in Figure 2; Have on the template 15 and limit switch 17, tappet head 16 and connecting rod 14 corresponding the first～three locating holes 28～30; Limit switch 17, tappet head 16 and connecting rod 14 are passed by the first～three locating hole 28～30 respectively, and the first～three position of locating hole 28～30 on template 15 can change according to needs of production.The number of transition axis of the present invention 6, power transmission shaft 24, output shaft 10, universal drive shaft 13 and tappet head 16 is identical, and present embodiment is 14.
As shown in Figure 3, tightening machine of the present invention is installed on the lathe bed 34, and the top of lathe bed 34 is provided with cylinder 31, and the piston rod of cylinder 31 is connected with tightening machine.The top of lathe bed 34 also is provided with pulley 32, and steel wire rope is passed by pulley 32, and an end connects tightening machine, and the other end connects balancing weight 33, but the deadweight of balance tightening machine makes more convenient, rising or the decline reposefully of tightening machine.Torque limiter 23 among the present invention, sensor 20, motor 1, cylinder 31, all be electrically connected with the control system near switch 12
Operation principle of the present invention is:
As shown in Figure 5, the control system initialization, the control system sends the workpiece signal that puts in place, whether has placed workpiece on the testing platform 35; If do not detect on the workbench 35 and placed workpiece, then signal is let slip.If detecting workbench has placed workpiece, the control system gives cylinder 31 signals, cylinder 31 work of lathe bed 34 tops, and the piston rod of cylinder 31 descends, and drives tightening machine and descends.Whether detectability bit switch 17 puts in place then, if do not put in place, cylinder 31 drives tightening machine to be continued to descend; If limit switch 17 touches workbench 35, tightening machine continues to descend, and at this moment, limit switch 17 moves up.When the top of limit switch 17 arrived sensor 20, sensor 20 received signal, and signal is passed to the control system.The control system receives the signal that sensor 20 is sent, and control cylinder 31 quits work.
The control system sends signal for motor 1; Motor 1 starts rotation; Drive jackshaft 27 rotations through decelerator 2; Idler gear on the jackshaft 27 through idler gear 26 and the engagement of transition gear 7 and the engagement transferring power of transition gear 7 and travelling gear 25, makes each power transmission shaft 24 rotations along with jackshaft 27 rotates jointly.The output shaft 10 that links to each other with power transmission shaft 24 through torque limiter 23 rotates under the drive of power transmission shaft 24 jointly; Ring-type piece 11 when recessed tooth on it and double wedge pass through near switch 12, can to different excitation be exported various signals near switch 12 with treating that output shaft 10 rotates synchronously; To be located at the regular hour near the signal that the sensor of switch is exported; Through predefined torque value, can control the moment of torsion of output shaft 10 outputs, avoid overload.The output shaft 10 that rotates drives universal drive shaft 13 and rotates synchronously, and universal drive shaft 13 drives tappet head 16 again and tightens workpiece.
After tightening, motor 1 stops the rotation, and the piston rod of cylinder 31 rises and resets, and workpiece is let pass.
The present invention is through adjustment template and the predefined torque value of adjusting torque limiter, applicable multiple different workpieces; Also staggering respectively in the position of torque limiter between power transmission shaft and output shaft, interferes with each other avoiding.
Tappet head of the present invention is commercial product, and the model of purchasing the thunderbolt horse company production in Taiwan is 14 tappet head; Universal drive shaft is commercial product, and purchasing the model of producing in Japanese Chinese toon our company is the universal drive shaft of HJ-16GX.
Control of the present invention system is a prior art, adopts the PLC programming, can analyze moment, regulates control torque, combines control touch screen interface, both can manual control equipment, can unmannedly control automatically again.
Claims (10)
1. torque-control multishaft bolt tightening machine; It is characterized in that: comprise drive unit, speed changer case (5), jackshaft (27), torque limiter (23) and tappet head (16); One end of jackshaft (27) links to each other with drive unit, and the other end is passed by speed changer case (5); Speed changer case (5) output has power transmission shaft (24); Each power transmission shaft (24) all is connected with output shaft (10) through torque limiter (23); The other end of output shaft (10) is provided with fixed head (21); The output shaft of this end is passed, is linked to each other with an end of universal drive shaft (13) by fixed head (21), and the other end of universal drive shaft (13) is connected with template (15), and tappet head (16) is passed with universal drive shaft by template (15) and is connected; Limit switch (17) is installed on template (15), and a side of limit switch (17) is provided with the sensor (20) that is fixed on the template (15).
2. by the described torque-control multishaft bolt tightening machine of claim 1, it is characterized in that: the part that said jackshaft (27) is positioned at speed changer case (5) is equipped with idler gear (26); Periphery inner at speed changer case (5), jackshaft (27) is provided with a plurality of transition axises (6) that have transition gear (7), and transition gear (7) is meshed with idler gear (26); The periphery of transition axis (6) is provided with a plurality of power transmission shafts (24) that have travelling gear (25), and travelling gear (25) is meshed with transition gear (7).
3. by the described torque-control multishaft bolt tightening machine of claim 2, it is characterized in that: the two ends of said transition axis (6) are installed on the speed changer case (5), and both ends are equipped with the hubcap (4) that is fixed on the speed changer case (5); One end of power transmission shaft (24) is installed on the speed changer case (5), and the end is provided with the hubcap (4) that is fixed on the speed changer case (5), and the other end of power transmission shaft (24) is passed by speed changer case (5).
4. by the described torque-control multishaft bolt tightening machine of claim 2, it is characterized in that: said transition axis (6), power transmission shaft (24), output shaft (10), universal drive shaft (13) and tappet head (16) are a plurality of, and number is identical.
5. by the described torque-control multishaft bolt tightening machine of claim 1; It is characterized in that: said torque limiter (23) comprises that first flange (8), axle sleeve (9), ring-type piece (11) reach near switch (12); First flange (8) be installed in power transmission shaft (24) go up, with power transmission shaft (24) interlock, axle sleeve (9) be socketed in output shaft (10) an end and with first flange (8) Joint; Fixed head (21) is provided with a plurality of bearing fixed seats (22), and the other end of output shaft (10) passes bearing fixed seat (22) successively, fixed head (21) is connected with universal drive shaft (13); Ring-type piece (11) is installed on the output shaft (10), is fixed in the side that bearing fixed seat (22) is gone up, is positioned at ring-type piece (11) near switch (12).
6. by the described torque-control multishaft bolt tightening machine of claim 5; It is characterized in that: the concavo-convex tooth-shape structure of said ring-type piece (11) for being uniformly distributed with; Constitute the signal space zone that " detecting distance " is interior and " detecting distance " is outer, be installed in the double wedge and the recessed tooth periphery of ring-type piece (11) near switch (12).
7. by the described torque-control multishaft bolt tightening machine of claim 1; It is characterized in that: the other end of said universal drive shaft (13) is provided with second flange (19) that is fixed on the template (15), and tappet head (16) passes template (15), is connected with universal drive shaft (13) through second flange (19).
8. by the described torque-control multishaft bolt tightening machine of claim 1, it is characterized in that: be provided with connecting rod (14) between said fixed head (21) and the template (15).
9. by claim 1 or 8 described torque-control multishaft bolt tightening machines, it is characterized in that: the 3rd locating hole (30) and a plurality of and corresponding second locating hole of tappet head (29) that have first locating hole (28) of ccontaining limit switch (17), ccontaining connecting rod (14) on the said template (15).
10. by the described torque-control multishaft bolt tightening machine of claim 1, it is characterized in that: said limit switch (17) is provided with back-moving spring (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102295172A CN101745802B (en) | 2008-12-10 | 2008-12-10 | Torque-control multishaft bolt tightening machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102295172A CN101745802B (en) | 2008-12-10 | 2008-12-10 | Torque-control multishaft bolt tightening machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101745802A CN101745802A (en) | 2010-06-23 |
| CN101745802B true CN101745802B (en) | 2012-02-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008102295172A Expired - Fee Related CN101745802B (en) | 2008-12-10 | 2008-12-10 | Torque-control multishaft bolt tightening machine |
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| Country | Link |
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| CN (1) | CN101745802B (en) |
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| US4542576A (en) * | 1983-07-26 | 1985-09-24 | Honda Giken Kogyo Kabushiki Kaisha | Replaceable head multi-spindle fastening apparatus |
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| Publication number | Publication date |
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| CN101745802A (en) | 2010-06-23 |
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Granted publication date: 20120215 Termination date: 20161210 |