CN106514305A - Method for adjusting center of gravity of workpiece on large scale - Google Patents
Method for adjusting center of gravity of workpiece on large scale Download PDFInfo
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- CN106514305A CN106514305A CN201510573149.3A CN201510573149A CN106514305A CN 106514305 A CN106514305 A CN 106514305A CN 201510573149 A CN201510573149 A CN 201510573149A CN 106514305 A CN106514305 A CN 106514305A
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- workpiece
- cylinder
- frame body
- centre frame
- large scale
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/72—Auxiliary arrangements; Interconnections between auxiliary tables and movable machine elements
- B23Q1/76—Steadies; Rests
- B23Q1/763—Rotating steadies or rests
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention discloses a method for adjusting center of gravity of a workpiece on a large scale. The method comprises the following steps that a mounting seat (8) is arranged; a centre frame body (9) is arranged on the mounting seat (8); three clamping grooves (12) are arranged evenly on the center frame body (9); a fixing bolt (13) is arranged on the side wall of every clamping groove (12); an adjusting tube (10) is installed in every clamping groove (12); and top wheels are installed at the ends, located on the inner side of the center frame body (9), of the three adjusting tubes (10). According to the method for adjusting the workpiece center of gravity on the large scale, the friction between the workpiece and the center frame body is converted into rolling friction and the condition that the workpiece is locked is reduced. At the same time, the acting force between the top wheels and the workpiece can be adjusted under the driving of a rotary table, so that the stress of the workpiece is even. The relative position relation of the adjusting tubes and the center frame body can be changed through the fixing bolts on the clamping grooves, so that the using range of the same-type center frame is increased.
Description
Technical field
The present invention relates to the auxiliary equipment in a kind of machining working angles, specifically refers to a kind of method for adjusting workpiece center of gravity on a large scale.
Background technology
In machining industry, particularly in the machining of slender piece, centre frame is frequently used.Centre frame is the auxiliary device of work in-process radial support rotational workpieces, when processing thin and long shafts part, draw ratio L/D>15, in order to prevent workpiece by radial cutting force effect and produce flexural deformation, common central frame as aiding support, to increase workpiece rigidity.During processing, with workpiece without moving to axial, centre frame should be fixed on lathe bed, and with the thick centering of scriber, on point after lubricating oil, machine tool low speed rotation turns speed according to the thickness and weight of material, according to feel centering.Centre frame is mainly used in large-diameter workpiece shaft end facing, selects, after the rack position of center, centre frame to be fixed on bed ways according to workpiece, rotates at a slow speed adjustment center, appropriate grease-added between centre frame pawl post and workpiece.Centre frame is not just serious can only to be reinstalled or changing, the light length that can adjust 3 contact studs, first three posts are all unclamped allows main shaft to rotate, then centre frame contact stud is adjusted to workpiece, the strength of three posts should be identical, sees whether the rotation of workpiece beats after touching workpiece, optimum position is slowly found according to the bounce of workpiece, then process, because trickle adjustment is also wanted in the abrasion of contact cylinder in the course of processing, enough lubricating oil will be filled up during smart car and coolant reduces abrasion.Centre frame is mainly used to process longer workpiece, between chuck and knife rest；Follow-rest with processing slender axles, be installed on slip crate, move with knife rest, to increase turning rigidity.Processing elongate stepped axle it is each cylindrical, centre frame is typically bearing in the middle part of axle, first car right-hand member is each cylindrical, after u-turn after same clamping the car other end again it is cylindrical；The end face of processing major axis or long cylinder (such as cylinder body), and hole and the screw thread etc. of end, can use chuck clamping workpiece left end, support right-hand member or right-hand member slightly by medium position with centre frame.When support column is adjusted, if strength is excessive, locking phenomenon in turning process, is easily produced；If strength is too small, product easily forms ellipse, and the limited problem of use range of centre frame.
The content of the invention
It is an object of the invention to provide a kind of method for adjusting workpiece center of gravity on a large scale, overcome current centre frame in clamping workpiece, stress is difficult to adjust, be easily caused workpiece loosens to form that workpiece end face is oval or the excessive problem for forming locking of stress, and the problem that Traditional center frame range of accommodation is little.
The purpose of the present invention is achieved through the following technical solutions：
A kind of method for adjusting workpiece center of gravity on a large scale, including mounting seat, centre frame body is provided with mounting seat, three draw-in grooves are evenly arranged with centre frame body, fixing bolt is provided with the side wall of each draw-in groove, the adjustment barrel for adjusting distance between top wheel and centre frame body axle center is mounted in each draw-in groove, is located at the one end on the inside of centre frame body in three adjustment barrels and is mounted on top wheel.The mounting seat of centre frame body is arranged on the guide rail of lathe, top wheel is installed in the adjustment barrel of centre frame body, by way of adopting top wheel, frictional force between workpiece and top wheel is converted to into the force of rolling friction of top wheel, locking problem between workpiece and centre frame is overcome effectively, adjustment barrel is arranged in draw-in groove simultaneously, its distance with centre frame body is adjusted by fixing bolt, enable same model centre frame its be applied to radius less than centre frame body radius all workpiece so that centre frame the scope of application increase.
The top wheel includes pushing up cylinder, top cylinder is integrally in cylinder, on top, one end face of cylinder is connected with Coupling, on top, another end face of cylinder is provided with mounting groove, two sides of the mounting groove on the cylinder of top are parallel to each other and with regard to the axisymmetrical of top cylinder, bearing is installed in mounting groove, the two ends of bearing are connected on two sides of top cylinder mounting groove, roller is set with bearing, the radius of roller is more than the distance of the top cylinder end face that the axis of bearing is located to mounting groove, and the top wheel is connected with adjustment barrel by Coupling.A mounting groove is cut out on the cylinder of top, top surface and cylinder sides of the opening of the mounting groove in top cylinder, mounting groove being open positioned at the middle part of end face in end face, two sides in the cylinder of top of mounting groove are parallel to each other, and with regard to pushing up the axisymmetrical of cylinder, bearing is installed in mounting groove, bearing is connected on the top cylinder of mounting groove both sides, and its axis is parallel with the end face of top cylinder, roller is set with bearing, the radius of roller is more than the distance between upper surface of the axis of bearing and top cylinder, so, the Coupling of top cylinder is socketed in after center adds, Force decomposition between top cylinder and workpiece is both direction, tangential direction along workpiece and the diametric(al) along workpiece, roller is rotated along the power of the tangential direction of workpiece around bearing, reduce the frictional force between top cylinder and workpiece, avoid the situation that workpiece is pushed up a locking.
The gathering sill parallel to top cylinder axis is provided with described Coupling, is provided with the gib block matched with gathering sill in adjustment barrel.In order to keep pushing up the position of wheel so that when adjusting, which will not rotate top wheel around the axis of top cylinder, be provided with gathering sill, by arranging gib block on the adjustable column of centre frame, be engaged with gathering sill, it is to avoid the situation that top wheel is rotated on Coupling.
Rotating disk is provided with the adjustment barrel, and rotating disk is connected with top wheel by the screw rod in adjustment barrel.In order to adapt to the needs of different workpieces, by the screw rod in driven by rotary disc adjustment barrel, screw rod promotes top wheel to move along the diametric(al) of centre frame body, adjusts the position of workpiece on centre frame with this.
The present invention compared with prior art, has the following advantages and advantages：
A kind of method for adjusting workpiece center of gravity on a large scale of 1 present invention, draw-in groove is provided with the side wall of centre frame body, adjustment barrel is installed in draw-in groove, top wheel is installed in adjustment barrel, frictional force between workpiece and centre frame body is converted into into force of rolling friction, workpiece is reduced by the situation of locking, simultaneously, by the drive of rotating disk, the active force between top wheel and workpiece can be adjusted, so that workpiece uniform force, the relative position relation of adjustment barrel and centre frame body can be changed by the fixing bolt on draw-in groove, so that the use range increase of the centre frame of same model；
A kind of method for adjusting workpiece center of gravity on a large scale of 2 present invention, by arranging mounting groove on the cylinder of top, installs bearing in mounting groove, the mode of roller is set with bearing, frictional force between top wheel and workpiece is converted into into force of rolling friction, workpiece is reduced by the situation of locking, is conducive to the processing of workpiece：
A kind of method for adjusting workpiece center of gravity on a large scale of 3 present invention, its Coupling is hexagon prism, can prevent from pushing up the rotation of cylinder, while being provided with gathering sill on Coupling, after coordinating with centre frame, can keep pushing up the position of cylinder, prevent which from rotating around the axis of top cylinder.
Description of the drawings
Fig. 1 is schematic structural view of the invention；
Fig. 2 is the structure enlarged diagram of present invention top wheel.
Labelling and corresponding parts title in accompanying drawing：
1- pushes up cylinder, 2- Couplings, 3- mounting grooves, 4- rollers, 5- bearings, 6- gathering sills, 7- screw rods, 8- mounting seats, 9- centre frame bodies, 10- adjustment barrels, 11- rotating disks, 12- draw-in grooves, 13- fixing bolts.
Specific embodiment
With reference to embodiment, the present invention is described in further detail, but embodiments of the present invention not limited to this.
Embodiment
As shown in Fig. 1 to 2，A kind of method for adjusting workpiece center of gravity on a large scale of the present invention，Including mounting seat 8，Centre frame body 9 is provided with mounting seat 8，Equally distributed three draw-in grooves 12 are provided with the side wall of centre frame body 9，Adjustment barrel 10 is installed in draw-in groove 12，Fixing bolt 13 is provided with the side wall of draw-in groove 12，Fixing bolt is used for changing the relative position relation of simultaneously secured adjusted cylinder and centre frame body 9，Rotating disk 11 is provided with adjustment barrel 10，Rotating disk 11 is connected with top wheel by the screw rod 7 in adjustment barrel 10，The one end on the inside of centre frame body 9 is located in three adjustment barrels 10 and is mounted on top wheel，Top wheel includes pushing up cylinder 1，Top cylinder 1 is overall in cylinder，On top, one end face of cylinder 1 is connected with hexagonal column ground Coupling 2，The gathering sill 6 with the diameter parallel of top cylinder 1 is provided with Coupling 2，The gib block matched with gathering sill 6 is provided with adjustment barrel 10；On top, another end face of cylinder 1 is provided with mounting groove 3, and the end face is provided with and falls from power, fall from power around the circle at the end face place, two sides of the mounting groove 3 on the cylinder 1 of top are parallel to each other and with regard to the axisymmetrical of top cylinder 1, bearing 5 is installed in mounting groove 3, the two ends of bearing 5 are connected on two sides of top 1 mounting groove 3 of cylinder, are set with roller 4 on bearing 5, the radius of roller 4 is more than the distance of top 1 end face of cylinder that the axis of bearing 5 is located to mounting groove 3
As described above, the present invention just can be realized well.
Claims (4)
1. it is a kind of on a large scale adjust workpiece center of gravity method, including mounting seat（8）, in mounting seat（8）On be provided with centre frame body（9）, it is characterised in that：In centre frame body（9）On be evenly arranged with three draw-in grooves（12）, each draw-in groove（12）Side wall on be provided with fixing bolt（13）, in each draw-in groove（12）Inside it is mounted on for adjusting top wheel and centre frame body（9）The adjustment barrel of distance between axle center（10）, in three adjustment barrels（10）Positioned at centre frame body（9）One end of inner side is mounted on top wheel.
2. it is according to claim 1 it is a kind of on a large scale adjust workpiece center of gravity method, it is characterised in that：The top wheel includes pushing up cylinder（1）, push up cylinder（1）Overall is in cylinder, in top cylinder（1）An end face be connected with Coupling（2）, in top cylinder（1）Another end face be provided with mounting groove（3）, mounting groove（3）In top cylinder（1）On two sides be parallel to each other and with regard to push up cylinder（1）Axisymmetrical, in mounting groove（3）Bearing is inside installed（5）, bearing（5）Two ends be connected to top cylinder（1）Mounting groove（3）Two sides on, in bearing（5）On be set with roller（4）, roller（4）Radius be more than bearing（5）Axis to mounting groove（3）The top cylinder at place（1）The distance of end face, the top wheel is by Coupling（2）With adjustment barrel（10）Connection.
3. it is according to claim 2 it is a kind of on a large scale adjust workpiece center of gravity method, it is characterised in that：Described Coupling（2）On be provided with parallel to top cylinder（1）The gathering sill of axis（6）, in adjustment barrel（10）Inside it is provided with and gathering sill（6）The gib block for matching.
4. it is as claimed in any of claims 1 to 3 it is a kind of on a large scale adjust workpiece center of gravity method, it is characterised in that：The adjustment barrel（10）On be provided with rotating disk（11）, rotating disk（11）By adjustment barrel（10）Interior screw rod（7）It is connected with top wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510573149.3A CN106514305A (en) | 2015-09-10 | 2015-09-10 | Method for adjusting center of gravity of workpiece on large scale |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510573149.3A CN106514305A (en) | 2015-09-10 | 2015-09-10 | Method for adjusting center of gravity of workpiece on large scale |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106514305A true CN106514305A (en) | 2017-03-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510573149.3A Pending CN106514305A (en) | 2015-09-10 | 2015-09-10 | Method for adjusting center of gravity of workpiece on large scale |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106514305A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110814791A (en) * | 2019-11-15 | 2020-02-21 | 哈尔滨电气动力装备有限公司 | Slender shaft center frame |
-
2015
- 2015-09-10 CN CN201510573149.3A patent/CN106514305A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110814791A (en) * | 2019-11-15 | 2020-02-21 | 哈尔滨电气动力装备有限公司 | Slender shaft center frame |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170322 |
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| WD01 | Invention patent application deemed withdrawn after publication |