CN202185674U - Linear displacement control system for dual-head phase friction welding machine - Google Patents
Linear displacement control system for dual-head phase friction welding machine Download PDFInfo
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- CN202185674U CN202185674U CN201120232035XU CN201120232035U CN202185674U CN 202185674 U CN202185674 U CN 202185674U CN 201120232035X U CN201120232035X U CN 201120232035XU CN 201120232035 U CN201120232035 U CN 201120232035U CN 202185674 U CN202185674 U CN 202185674U
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- main spindle
- fixed
- displacement
- ejector rod
- transmission case
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Abstract
The utility model provides a linear displacement control system for a dual-head phase friction welding machine, which comprises two main spindle boxes 1, two fixing rods 2, a splined shaft 3, a transmission case 4, a belt pulley 5, a displacement ejector rod 6, two push action cylinders 7, a middle stationary fixture 10, a support saddle 11, two rotary clamps 12 and an approach switch 13, wherein the displacement ejector rod is mounted in the support saddle in front of the transmission case, the two fixing rods are fixed on the two main spindle boxes and synchronously move with the main spindle boxes, the approach switch is fixed at the front end of one fixing rod, and when the fixing rod props the displacement ejector rod, the displacement ejector rod can axially move. The total friction deflection can be determined through the distance between the displacement ejector rod and the approach switch. The linear displacement control system ensures that two connectors on a dual-head weldment are welded synchronously at one step while the length accuracy is controlled to be within a range of plus-minus 0.5 mm, the requirements of assembling and welding are met, and the qualification rate of the length accuracy can reach 99 percent.
Description
Affiliated technical field
The utility model relates to a kind of friction welding (FW) axial displacement control technology, especially can realize the axial length control of the double end friction weldment of length required precision.
Background technology
Friction welding (FW) is to utilize frictional heat to be thermal source, through the relative spin friction campaign of welded part and apply axial friction, the workpiece contact surface is heated to mecystasis; Apply upsetting force again; Implement braking simultaneously, stop the rotation, of the same race or dissimilar metal are welded securely.
Traditional friction-welding machine is that main spindle box is fixed, and the form that slide unit moves is applicable to the production of single head weldment (weldment has only a friction welding joint).For double end weldment (weldment has two friction welding joints), need to adopt two main spindle boxes to move, the intermediate holder fixed form realizes the once welding simultaneously of two joints on the double end weldment.Because the friction welding (FW) process is accompanied by axial shortening, does not have length required precision or less demanding double end weldment for weldment, the control of employing time just can be satisfied the weldment length requirement fully; But for the higher double end weldment of some length required precisions; Because the workpiece blank error in length, the fluctuation of friction pressure, the reason such as inhomogeneous of two main spindle box translational speeds; The control of employing time; Just can not guarantee the required precision of weldment length, percent defective is increased, limit the application of friction welding technology.
Summary of the invention
Adopt the time Control Shaft low excessively in order to overcome existing double end friction-welding machine to the length precision that shortening amount brought; The deficiency that percent defective is too high; The utility model provides a kind of double end phase place friction-welding machine straight-line displacement to control system; When can be implemented in the once time synchronization welding of two joints on the double end weldment, accurately control axial displacement.
The utility model solves the technical scheme that its technical problem adopted: it comprises: two main spindle boxes, two fixed bars, splined shaft, transmission case, belt pulley, displacement push rod, two pressurization oil cylinders, center fixed anchor clamps, bearing, rolling clamp, near switch; The displacement push rod is installed in two bearings that are fixed in the transmission case front; Displacement push rod and bearing hole form matched in clearance; Two fixed bars are fixed on two movably on the main spindle box in opposite directions, are fixed on the front end of a fixed bar near switch.
The utility model also has some technical characterictics like this:
1, transmission case is connected through a splined shaft with two main spindle boxes, and the rear portion of two main spindle boxes respectively connects two pressurization oil cylinders.
Its operating characteristic is following steps:
(1) behind the clamping workpiece, make two main spindle boxes advance to the weldment contact, adjustment displacement push rod is the numerical value of burnoff length S near the switch distance extremely.
(2) start weld cycle, left and right sides main spindle box advances t1 after second fast with upsetting force, changes first class pressure and advances to two workpiece contacts at a slow speed, advances and stops, and is in the beginning welding position.
(3) main shaft commentaries on classics t0 is stable to the speed of mainshaft after second
(4) left and right sides main spindle box rubs at a slow speed t2 second with first class pressure
(5) left and right sides main spindle box rubs at a slow speed with secondary pressure and heats the S millimeter
(6) upset welding, secondary pressure changes upsetting force, changes at a slow speed fast, simultaneously, and brake, pressurize is advanced and is stopped.
(7) welding finishes, and anchor clamps unclamp, and take off weldment.
The invention has the beneficial effects as follows, the realization once time synchronization of two welding points welding time on the double end weldment, the length precision can be controlled in ± 0.5 millimeter in, satisfy the requirement of erection welding, the qualification rate of length precision reaches 99%.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further specified.
Fig. 1 is the structural representation of the utility model.
1 is main spindle box among the figure, and 2 is fixed bar, and 3 is splined shaft, and 4 is transmission case, and 5 is belt pulley, and 6 are the displacement push rod, and 7 are the pressurization oil cylinder, and 8 is the weld yoke weldment, and 9 is the central siphon weldment, and 10 is the center fixed anchor clamps, and 11 is bearing, and 12 is rolling clamp, and 13 is near switch
The specific embodiment
For realizing two weld yokes 8 and central siphon 9 welding; And control axial length precision reach ± 0.5mm in; Adopt transmission case 4 with about two main shafts 1 case be connected through a splined shaft 3, realize that two main shafts rotate synchronously, the rear portion of two main spindle boxes 1 respectively connects two oil cylinders 7 that pressurize.Displacement push rod 6 is installed in two bearings 11 that are fixed in the transmission case front, and displacement push rod 6 forms matched in clearance with bearing hole; Two fixed bars 2 are fixed on two movably on the main spindle box 1 in opposite directions, are fixed on the front end of a fixed bar 2 near switch 13. and when a certain fixedly masthead puts in place when moving push rod 6, displacement push rod 6 can move axially.When two fixed mandrils 2 pushed up displacement push rod 6 simultaneously, displacement push rod 6 and two main spindle boxes 1 all can not move axially.Total burnoff length is to confirming its size near the distance of switch through the displacement push rod.When send near switch reach a certain burnoff length after, the PLC controller sends upset welding order.
During work, welded piece is that two weld yokes 8 are welded together with central siphon 9.With two weld yokes 8 respectively in the rolling clamp 12 of clamping on being fixed in main spindle box 1 movably; With central siphon 9 clampings in center fixed anchor clamps 10; Under two pressurization oil cylinder 7 effects; Two main spindle box 1 advanced in unison to weldments are contacted, and adjustment displacement push rod 6 is got S=12mm here to being the numerical value of burnoff length S near switch 13 distances.Main spindle box 1 is returned to initial point.Start weld cycle, the PLC controller is given an order, and left and right sides main spindle box 1 advances t1 after second with upsetting force fast under the promotion of two pressurization oil cylinders 7, and the commentaries on classics first class pressure advances to two weld yokes 8 at a slow speed and contacts with central siphon 9, advances and stops, and is in the beginning welding position.Main electric motor starting, power is through belt pulley 5 and transmission case 4, splined shaft 3, and the main shaft and the rolling clamp 12 that drive in two main spindle boxes rotate synchronously; It is stable to the speed of mainshaft after second that main shaft changes t0, and left and right sides main spindle box 1 rubs at a slow speed preheating t2 second with first class pressure, and left and right sides main spindle box 1 is with the secondary pressure heating that rubs at a slow speed; At this moment, under the secondary pressure effect, plastic deformation will take place in the workpiece contact-making surface; Produce axially and shorten, displacement push rod end with move closer near switch, when axial shortening amount reaches setting value 12mm; Send the signal that is displaced near switch and give the PLC controller, the PLC controller sends upset welding order.Secondary pressure changes upsetting force, changes at a slow speed fast, simultaneously, and brake, pressurize is advanced and is stopped.Welding finishes, and anchor clamps unclamp, and take off weldment.
Claims (2)
1. system is controlled in a double end phase place friction-welding machine straight-line displacement; It comprises: two main spindle boxes (1), two fixed bars (2), splined shaft (3), transmission case (4), belt pulley (5), displacement push rod (6), two pressurization oil cylinders (7), center fixed anchor clamps (10), bearing (11), rolling clamp (12), near switch (13); It is characterized in that: displacement push rod (6) is installed in two bearings (11) that are fixed in the transmission case front; Displacement push rod (6) forms matched in clearance with bearing (11) hole; Two fixed bars (2) are fixed on two movably on the main spindle box (1) in opposite directions, are fixed on the front end of a fixed bar (2) near switch (13).
2. system is controlled in a kind of double end phase place friction-welding machine straight-line displacement according to claim 1, it is characterized in that transmission case (4) is connected through a splined shaft (3) with two main spindle boxes (1), and the rear portion of two main spindle boxes (1) respectively connects two pressurization oil cylinders (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120232035XU CN202185674U (en) | 2011-07-04 | 2011-07-04 | Linear displacement control system for dual-head phase friction welding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120232035XU CN202185674U (en) | 2011-07-04 | 2011-07-04 | Linear displacement control system for dual-head phase friction welding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202185674U true CN202185674U (en) | 2012-04-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120232035XU Expired - Fee Related CN202185674U (en) | 2011-07-04 | 2011-07-04 | Linear displacement control system for dual-head phase friction welding machine |
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| CN (1) | CN202185674U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102658421A (en) * | 2012-05-18 | 2012-09-12 | 长春数控机床有限公司 | Double-head friction welding machine and control method thereof |
| CN105414741A (en) * | 2016-01-08 | 2016-03-23 | 重庆德蚨乐机械制造有限公司 | Friction welding floating zero system and axial and radial welding control method thereof |
| CN105965151A (en) * | 2016-06-27 | 2016-09-28 | 哈尔滨正晨焊接切割设备制造有限公司 | V-shaped thrust rod for phase position friction welding automobile and welding method for V-shaped thrust rod |
| CN106624341A (en) * | 2017-01-19 | 2017-05-10 | 中冶赛迪工程技术股份有限公司 | Intermediate slab connection method |
| CN108608107A (en) * | 2018-05-23 | 2018-10-02 | 江苏科技大学 | A kind of phase friction welding machine and welding method |
| CN111203630A (en) * | 2020-04-20 | 2020-05-29 | 中国航空制造技术研究院 | Precision control method for linear friction welding upset forging direction and application |
| CN112518100A (en) * | 2020-12-02 | 2021-03-19 | 陈登全 | Automatic friction welding equipment of transmission shaft |
-
2011
- 2011-07-04 CN CN201120232035XU patent/CN202185674U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102658421A (en) * | 2012-05-18 | 2012-09-12 | 长春数控机床有限公司 | Double-head friction welding machine and control method thereof |
| CN102658421B (en) * | 2012-05-18 | 2015-03-11 | 长春数控机床有限公司 | Double-head friction welding machine and control method thereof |
| CN105414741A (en) * | 2016-01-08 | 2016-03-23 | 重庆德蚨乐机械制造有限公司 | Friction welding floating zero system and axial and radial welding control method thereof |
| CN105965151A (en) * | 2016-06-27 | 2016-09-28 | 哈尔滨正晨焊接切割设备制造有限公司 | V-shaped thrust rod for phase position friction welding automobile and welding method for V-shaped thrust rod |
| CN106624341A (en) * | 2017-01-19 | 2017-05-10 | 中冶赛迪工程技术股份有限公司 | Intermediate slab connection method |
| CN108608107A (en) * | 2018-05-23 | 2018-10-02 | 江苏科技大学 | A kind of phase friction welding machine and welding method |
| CN111203630A (en) * | 2020-04-20 | 2020-05-29 | 中国航空制造技术研究院 | Precision control method for linear friction welding upset forging direction and application |
| CN111203630B (en) * | 2020-04-20 | 2020-08-04 | 中国航空制造技术研究院 | Precision control method for linear friction welding upset forging direction and application |
| CN112518100A (en) * | 2020-12-02 | 2021-03-19 | 陈登全 | Automatic friction welding equipment of transmission shaft |
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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: 20120411 Termination date: 20120704 |