CN2680399Y - Vibrating and limit device for linear friction welding machine - Google Patents
Vibrating and limit device for linear friction welding machine Download PDFInfo
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- CN2680399Y CN2680399Y CN 200420041446 CN200420041446U CN2680399Y CN 2680399 Y CN2680399 Y CN 2680399Y CN 200420041446 CN200420041446 CN 200420041446 CN 200420041446 U CN200420041446 U CN 200420041446U CN 2680399 Y CN2680399 Y CN 2680399Y
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- slide assemblies
- welding machine
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- bent axle
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Abstract
The utility model discloses a vibrating and limiting device for a linear friction welding machine. A vibrating device drives a rocker arm (19) by a crankshaft (12) to drive a welding fixture base (22) for right and left alternating motion and the friction welding purpose is realized. In a limiting device, a gas cylinder shaft (5) is connected with a gear rack (6) by a connector (8) and the teeth on the gear rack (6) are engaged with a recoil gear (7). Because the single rocker arm is substituted for the double connecting rods of the prior art, a phase transformer is not needed and the friction welding purpose can be carried out, the structure is simple. The utility model has good operating stability, long service life and low failure rate, especially under the condition of big load; the utility model realize straight-line friction, straight-line reset, and quick reaction of the gas cylinder, so the limiting time is short and the limiting dimensional precision is high. The frictional direction of the weldment is not changed in the limiting process, which can improve the integrative mechanical properties of welding seam. The ac motor speed regulating system has hard mechanical characteristic and stable frequency of vibration and stable output torque, which is good for obtaining weld joint of high quality.
Description
Technical field
The utility model relates to vibration, the stopping means of a kind of vibration and stopping means, particularly linear friction welding machine.
Background technology
Linear friction welding machine has obtained application abroad.The key technology of linear friction welding machine is vibrating device and stopping means, promptly drives the frequency reciprocating motion of weldment with 0～100HZ with vibrating device, realizes friction welding.Stopping means is after stopping friction, guarantees welding precision.
External present employed linear friction welding machine vibrating device mainly contains three types of electromagnetic type, fluid pressure type and mechanical types.
The electromagnetic type vibrating device is to realize the reciprocating of workpiece by the adhesive of electromagnet and release.System have wide frequency range (0～20KHZ), wide dynamic range, the power consumption low, amplitude is easy to advantages such as control; Its major defect is that thrust is big inadequately, so be mainly used in the small-power linear friction welding machine of welding plastic part.
The fluid pressure type vibrating device is to realize the reciprocating of workpiece by hydraulic means.Hydraulic mechanism can produce very big exciting force and displacement, but its high frequency performance is poor, and upper limit operating frequency is low, and wave distortion is big.
" the Linear Friction Welding " of document " DVS " 139,18～24 Nicholas ED. introduced mechanical type hyperbolic connecting rod vibrating device (see figure 5).Device drives bent axle 64 rotation at a high speed by motor 1.Spiral phase converter 65 is housed on the bent axle 64, in order to changing two phase differences between the connecting rod, and then regulates the amplitude of vibrational system.Two connecting rods hinged with bent axle 64, connecting rod 61 and connecting rod 62 tops connect crossbeam 63.Mid point at crossbeam 63 is equipped with anchor clamps, at it hydraulic system is housed axially.When motor 1 rotates at a high speed, drive bent axle 64 rotations, it is reciprocating that connecting rod 61 and connecting rod 62 drive crossbeam 63 simultaneously.The spiral phase converter of installing on the bent axle 65 can change the phase difference of two crankshaft connecting rod systems between 0～180 °.When two crank phase differences are 0 °, connecting rod 61 and connecting rod 62 with speed, in the same way, motion simultaneously, the crossbeam 63 that is attached thereto can reach maximum displacement, is suitable for welding this moment.Adjustable screw phase converter 65 increases the phase difference of two bent axles, and this moment, the amplitude at crossbeam center reduced gradually.When the phase difference of two bent axles reached 180 °, then connecting rod 61 was opposite with the vibration-direction of connecting rod 62, speed is identical, and crossbeam 63 centers that be attached thereto this moment do not have reciprocal variation to stop friction welding.
The mechanical type vibrating device of linear friction welding machine mainly has the following disadvantages:
1, the hyperbolic axis mechanism that has the spiral phase converter, complex structure, fault rate height;
2, when the phase difference of two bent axles reaches 180 °, although the center of crossbeam has not had reciprocating motion, but part still has fricting movement in various degree beyond its central point, and area and time that weld interface is exposed under the atmosphere are long, thereby influence joint quality;
When 3, spacing, central point has stopped the friction welding (FW) motion, but part is still done the spin friction campaign beyond the central point, so spacing not accurate enough;
What 4, motor adopted is dc motor speed drive system, the mechanical property of dc motor speed drive system is softer, and especially when the low loading moment of rotating speed changed, rotating speed of motor can produce certain variation, thereby cause vibration frequency generation respective change, influence welding quality.
Summary of the invention
In order to overcome complex structure in the prior art, spacing deficiency such as inaccurate, the utility model provides a kind of vibration and stopping means, and this vibration and stopping means are simple in structure, spacing accurately, can improve welding quality effectively.
The technical solution of the utility model is: the vibrating device of linear friction welding machine; Comprise motor 1; Also comprise belt pulley 9; Main shaft frame 10; Crankshaft bearing 11; Bent axle 12; Deep groove ball bearing 13; Rocking arm 19; Welding machine pedestal 20; Weld jig base 22; Bearing bracket stand 41; Double rolling bearing 42; Straight pin 43; Double inclined plane guide rail 44; Pin 45; Driving shaft 46; Slide assemblies right plate 47; Slide assemblies base plate 48; Slide assemblies left plate 49; Spring bearing 50; Main shaft frame 10 is fixed on the welding machine pedestal 20; Bent axle 12 is fixed on the main shaft frame 10 by a pair of crankshaft bearing 11; Belt pulley 9 is fixed by a pin on the bent axle 12; One end of rocking arm 19 is installed in the eccentric position of bent axle 12 by deep groove ball bearing 13; The other end of rocking arm 19 is fixed on the driving shaft 46 with pin 45; Driving shaft 46 is installed on slide assemblies right plate 47 and the slide assemblies left plate 49 by a pair of spring bearing 50; A pair of double inclined plane guide rail 44 is fixed in respectively slide assemblies left plate 49 and slide assemblies right plate 47 the right and lefts; Weld jig base 22 and slide assemblies base plate 48 be fixed in respectively slide assemblies left plate 49 and slide assemblies right plate 47 about; The two ends of bent axle 12 are separately installed with belt pulley 9 and return gear 7, and bearing bracket stand 41 is fixed on the welding machine pedestal 20, and four pairs of double rolling bearings 42 that are installed on the bearing bracket stand 41 tightly contact with four inclined-planes of a pair of double inclined plane guide rail 44 respectively; Double rolling bearing 42 is installed on the straight pin 43, with the internal thread of bolt by straight pin 43 double rolling bearing 42 is fixed on the bearing bracket stand on 41.
Described motor is an alternating current generator.
Described bent axle 12 is an eccentric shaft, and eccentric throw is 2～3mm.
The stopping means of linear friction welding machine comprises cylinder 4, cylinder axis 5, and tooth bar 6, return gear 7, connector 8, cylinder axis 5 and tooth bar 6 are linked together by connector 8, tooth on the tooth bar 6 and 7 engagements of return gear.
The utility model advantage compared to existing technology is, owing to adopt single rocking arm to replace the double link of prior art, and need not phase converter, can carry out friction welding, simple in structure.Especially under the situation of big load, good operating stability, long service life, fault rate is low;
Adopt single rocking arm to replace the double link structure of former welding machine, realized that also straight line friction, straight line reset.The cylinder reaction is fast, and the spacing time is short, spacing dimensional accuracy height.There is not the change of weldment frictional direction in spacing process, can effectively prevent interface oxidation, and improves the comprehensive mechanical performance of weld seam;
The speed regualtion of AC motor system that adopts has hard mechanical characteristic, and in the course of the work, vibration frequency and output torque are more stable, so the friction process of weldment is more stable, thereby help obtaining the high quality welding joint.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the utility model structural representation
Fig. 2 is that Figure 1A-A is to cutaway view
Fig. 3 is that Figure 1B-B is to cutaway view
Fig. 4 is the utility model structure stopping means detail drawing
Fig. 5 is a mechanical type hyperbolic connecting rod vibrational system schematic diagram, is background technology figure
Fig. 5 (A) is the schematic diagrames of two crank phase differences when being 0 °
Fig. 5 (B) is the schematic diagrames of two crank phase differences when being 180 °
1-motor among the figure, 2-motor shaft, 3-welding machine fuselage, the 4-cylinder, 5-cylinder axis, 6-tooth bar, 7-return gear, 8-connector, 9-belt pulley, 10-main shaft frame, 11-crankshaft bearing, 12-bent axle, the 13-deep groove ball bearing, 19-rocking arm, 20-pedestal, 22-weld jig base, 41-bearing bracket stand, 42-double rolling bearing, the 43-cylindrical pin with internal thread, 44-double inclined plane guide rail, 45-pin, the 46-driving shaft, 47-slide assemblies right plate, 48-slide assemblies base plate, 49-slide assemblies left plate, 50-spring bearing, 61, the 62-connecting rod, the 63-crossbeam, 64-bent axle, 65-spiral phase converter.
The specific embodiment
With reference to Fig. 1～4, the utility model mainly comprises motor 1, cylinder 4, cylinder axis 5, tooth bar 6, return gear 7, connector 8, belt pulley 9, main shaft frame 10, crankshaft bearing 11, bent axle 12, deep groove ball bearing 13, rocking arm 19, welding machine pedestal 20, weld jig base 22, bearing bracket stand 41, double rolling bearing 42, straight pin 43, double inclined plane guide rail 44, pin 45, driving shaft 46, slide assemblies right plate 47, slide assemblies base plate 48, slide assemblies left plate 49, spring bearing 50.Belt pulley 9 is fixed on the bent axle 12 by pin, and bent axle 12 is fixed on the main shaft frame 10 by a pair of crankshaft bearing 11, and rocking arm 19 is installed in the eccentric position of bent axle 12 by deep groove ball bearing 13, and two ends of bent axle are installed belt pulley 9 and return gear 7 respectively.Motor 1 drives belt pulley 9 by belt and then drives bent axle 12 rotations, bent axle 12 drives driving shaft 46 by rocking arm 19, move back and forth thereby make about slide assemblies, slide assemblies is by slide assemblies right plate 47, slide assemblies base plate 48 and slide assemblies left plate 49 are formed, pin 45 is used for fixing rocking arm 19 and driving shaft 46, also has a pair of double inclined plane guide rail 44 with the slide assemblies left and right sides is reciprocating, weld jig base 22, a pair of double inclined plane guide rail 44 is fixed in slide assemblies left plate 49 and slide assemblies right plate 47 the right and lefts respectively, weld jig base 22 and slide assemblies base plate 48 be fixed in respectively slide assemblies left plate 49 and slide assemblies right plate 47 about, driving shaft 46 is installed in slide assemblies right plate 47 and the slide assemblies left plate 49 in a pair of spring bearing 50 that embeds.Bearing bracket stand 41 is fixed on the welding machine pedestal 20, and four pairs of double rolling bearings 42 that are installed on the bearing bracket stand 41 tightly contact with four inclined-planes of a pair of double inclined plane guide rail 44 respectively.When rocking arm 19 drives driving shaft 46 when reciprocating, it is reciprocating along track that driving shaft 46 just drives vibration component.Four pairs of utilizations that two roller bearings hold can not only guarantee reliably that the motion of vibration component is steady, reduce the wearing and tearing of track, and can guarantee the rigidity of vibration component under the situation of bearing the 5000kg impulsive force.Double rolling bearing 42 is installed on the straight pin 43, with the internal thread of bolt by straight pin 43 double rolling bearing 42 is fixed on the bearing bracket stand on 41.
Motor 1 passes through 12 rotations of belt pulley 9 drive bent axles during work, and bent axle 12 drives slide assemblies, double inclined plane guide rail 44, reaches about 22 reciprocating motions of weld jig base by master rocker 19, realizes friction welding.Because the reciprocating motion of weld jig base 22 reciprocatingly slides in double rolling bearing wheel 42 (4 pairs) by surface rail 44 and realizes that so the friction of guide rail is very little, and the course of work is steady.Motor 1 is selected alternating current generator for use, regulates the rotating speed of alternating current generator, the vibration frequency f when getting final product the linear adjustment friction welding.The eccentric throw of bent axle 12 is 2mm, so motional amplitude is 4mm.If the rated speed of motor is elected 2900 rev/mins as, then specified vibration frequency fn=48HZ.
With reference to Fig. 4, stopping means is by cylinder 4, cylinder axis 5, and tooth bar 6 and the return gear 7 that is installed on the bent axle 12 are formed, and cylinder axis 5 and tooth bar 6 are linked together by connector 8.When fraction time arrives, motor 1 outage.When motor 1 rotating speed dropped to certain value, cylinder 4 actions promoted tooth bar 6 and 7 motions of return gear, thereby bent axle 12 are rotated further, and closely contact with limited block until weldment, apply forging force this moment.Can carry out so reliably spacing, thereby guarantee that weldment has higher joint dimension precision.
Claims (4)
1; A kind of vibrating device of linear friction welding machine; Comprise motor (1); It is characterized in that: also comprise belt pulley (9); Main shaft frame (10); Crankshaft bearing (11); Bent axle (12); Deep groove ball bearing (13); Rocking arm (19); Welding machine pedestal (20); Weld jig base (22); Bearing bracket stand (41); Double rolling bearing (42); Straight pin (43); Double inclined plane guide rail (44); Pin (45); Driving shaft (46); Slide assemblies right plate (47); Slide assemblies base plate (48); Slide assemblies left plate (49); Spring bearing (50); Main shaft frame (10) is fixed on the welding machine pedestal (20); Bent axle (12) is fixed on the main shaft frame (10) by a pair of crankshaft bearing (11); Belt pulley (9) is fixed by a pin on the bent axle (12); One end of rocking arm (19) is installed in the eccentric position of bent axle (12) by deep groove ball bearing (13); The other end of rocking arm (19) is fixed on the driving shaft (46) with pin (45); Driving shaft (46) is installed on slide assemblies right plate (47) and the slide assemblies left plate (49) by a pair of spring bearing (50); A pair of double inclined plane guide rail (44) is fixed in respectively slide assemblies left plate (49) and slide assemblies right plate (47) the right and left; Weld jig base (22) and slide assemblies base plate (48) be fixed in respectively slide assemblies left plate (49) and slide assemblies right plate (47) about; The two ends of bent axle (12) are separately installed with belt pulley (9) and return gear (7); Bearing bracket stand (41) is fixed on the welding machine pedestal (20); The four pairs of double rolling bearings (42) that are installed on the bearing bracket stand (41) tightly contact with four inclined-planes of a pair of double inclined plane guide rail (44) respectively; Double rolling bearing (42) is installed on the straight pin (43), with the internal thread of bolt by straight pin (43) double rolling bearing (42) is fixed on the bearing bracket stand on (41).
2, the vibrating device of linear friction welding machine according to claim 1 is characterized in that: described motor (1) is an alternating current generator.
3, the vibrating device of linear friction welding machine according to claim 1 is characterized in that: described bent axle (12) is an eccentric shaft, and eccentric throw is 2～3mm.
4, a kind of stopping means of linear friction welding machine is characterized in that: comprise cylinder (4), cylinder axis (5), tooth bar (6), return gear (7), connector (8), cylinder axis (5) and tooth bar (6) are linked together by connector (8), tooth on the tooth bar (6) and return gear (7) engagement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420041446 CN2680399Y (en) | 2004-01-16 | 2004-01-16 | Vibrating and limit device for linear friction welding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420041446 CN2680399Y (en) | 2004-01-16 | 2004-01-16 | Vibrating and limit device for linear friction welding machine |
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| Publication Number | Publication Date |
|---|---|
| CN2680399Y true CN2680399Y (en) | 2005-02-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420041446 Expired - Fee Related CN2680399Y (en) | 2004-01-16 | 2004-01-16 | Vibrating and limit device for linear friction welding machine |
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| CN (1) | CN2680399Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100368138C (en) * | 2005-07-06 | 2008-02-13 | 西北工业大学 | Vibrating mechanism |
| CN102528269A (en) * | 2011-12-11 | 2012-07-04 | 西北工业大学 | Physical simulation test device for linear friction welding |
| CN104475963A (en) * | 2014-11-17 | 2015-04-01 | 宁波聚益工具有限公司 | Novel friction welding machine |
| CN107116299A (en) * | 2017-06-23 | 2017-09-01 | 苏州西岩机械技术有限公司 | A kind of servo vibration generating means of linear friction welding machine |
-
2004
- 2004-01-16 CN CN 200420041446 patent/CN2680399Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100368138C (en) * | 2005-07-06 | 2008-02-13 | 西北工业大学 | Vibrating mechanism |
| CN102528269A (en) * | 2011-12-11 | 2012-07-04 | 西北工业大学 | Physical simulation test device for linear friction welding |
| CN102528269B (en) * | 2011-12-11 | 2013-12-25 | 西北工业大学 | Physical simulation test device for linear friction welding |
| CN104475963A (en) * | 2014-11-17 | 2015-04-01 | 宁波聚益工具有限公司 | Novel friction welding machine |
| CN107116299A (en) * | 2017-06-23 | 2017-09-01 | 苏州西岩机械技术有限公司 | A kind of servo vibration generating means of linear friction welding machine |
| CN107116299B (en) * | 2017-06-23 | 2018-10-19 | 苏州西岩机械技术有限公司 | A kind of servo vibration generating means of linear friction welding machine |
| WO2018233103A1 (en) * | 2017-06-23 | 2018-12-27 | 苏州西岩机械技术有限公司 | Servo vibration generating apparatus of linear friction welding machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050223 |