CN101417394B - Center rack for processing machine - Google Patents
Center rack for processing machine Download PDFInfo
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- CN101417394B CN101417394B CN2008100216994A CN200810021699A CN101417394B CN 101417394 B CN101417394 B CN 101417394B CN 2008100216994 A CN2008100216994 A CN 2008100216994A CN 200810021699 A CN200810021699 A CN 200810021699A CN 101417394 B CN101417394 B CN 101417394B
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- connecting rod
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Abstract
The invention relates to a center frame used in machine work and belongs to the technical field of tooling fixtures of machine tools; wherein, a level screw rod is arranged in a screw hole of a bearing of the center frame and one end of the level screw rod, which is toward a workpiece, is provided with middle support blocks; one end of a rocking beam component hinged at the upper part of the bearing, which is adjacent to the workpiece, is provided with an inclined plane which clamps the workpiece from a side upward part and the other end of the rocking beam component is hinged with one end of a bridge-shaped connecting rod and the other end of the bridge-shaped connecting rod is provided with a connecting rod bolt; one end of a lever component at the lower part of the bearing, which is adjacent to the workpiece, is provided with an inclined plane which clamps the workpiece from the side lower part and the other end of the lever component is arranged against the lower end extended from a lever bolt which is arranged on the bearing. The invention can achieve the ideal center fixing and supporting effects. Simultaneously, instead of being placed into workholders traditionally, the workpieces can be arranged or taken away from one side of the bearing, thus causing the load and unload to be very convenient; while the adjustment of three support blocks is carried out simultaneously at one side of the bearing without being adjusted from the clamping direction and so the clamping operation is safe and convenient.
Description
Technical field
The present invention relates to a kind of machining and use centre frame, the centre frame of using on the lathes such as especially a kind of mill, car belongs to the lathe technical field of tooling clamps.
Background technology
During the bigger interior hole workpiece of axle sleeve that processing slim axle, weight are bigger on lathes such as grinding machine, lathe or length, centre frame is one of main frock clamp that guarantees machining accuracy.The effect of centre frame mainly contains following two aspects:
1), centering effect---be used for confirming the pivot of rotary part, and guarantee in process not to change because of factors such as stressed, vibrations.
2), the off-load effect---top common the centration axis that on lathes such as large-scale cylindrical grinder, screw grinder, roll grinder and crankshaft grinding machine, adopts centre frame and head, tail frame be to fixation, supporting workpiece weight.
It is similar that the basic structure of existing centre frame and application number are 200710303765.2, name is called " a kind of centre frame of tube-in-tube structure such as triangle such as height such as grade and the processing method of cam sleeve " disclosed structure, and circumference is provided with the support of three places in the support upper edge of annular.The advantage of this traditional structure is that centering is effective, bearing capacity is strong, but can't overcome following defective all the time for a long time: 1, the clamping of workpiece need pass in the middle of ring support, so the loading and unloading of workpiece are very inconvenient; 2, the support of three places need be adjusted from different orientation, so the clamping operation is also convenient inadequately.
Summary of the invention
The objective of the invention is to: to the defective that above prior art exists, proposes a kind ofly not only have good centering and support effect, and work-handling, clamping are operated all very easily machining and used centre frame.
In order to reach above purpose, machining of the present invention comprises bearing with centre frame; In the screw on the said bearing horizontal screw bolt is housed, said horizontal screw bolt is equipped with middle rest pad towards an end of workpiece; The top of said bearing is hinged with fork; One end of the contiguous workpiece of said fork is equipped with the upper support piece; The lower end of said upper support piece is shaped on from the inclined-plane of first quartile side top clamping workpiece; One end of the other end of said fork and bridge shape connecting rod is hinged, and the other end of said bridge shape connecting rod is equipped with the connecting rod screw that is resisted against on the bearing; Lever is equipped with in the bottom of said bearing; One end of the contiguous workpiece of said lever is equipped with the lower support piece; The said upper end of back-up block down is shaped on from the inclined-plane of four-quadrant side-lower clamping workpiece, and the other end of said lever is resisted against the lever screw that is installed on the bearing and extends the lower end.
During use, through regulate respectively horizontal screw bolt, connecting rod screw and lever screw can adjust respectively in rest pad, upper support piece and lower support piece, thereby reach desirable centering and support effect.Simultaneously, because workpiece is changed traditional clamping that penetrates, can load onto or take off from bearing one side; Therefore load and unload very conveniently, and the adjusting of three each rest pads is all carried out in a side of bearing, need not from clamping direction separately to adjust; So it is both safety is operated in clamping, convenient again.
Description of drawings
Below in conjunction with accompanying drawing the present invention is further described.
Fig. 1 is the structural representation of one embodiment of the invention.
Fig. 2 is the partial enlarged drawing of Fig. 1.
Fig. 3 attempts for the A-A of Fig. 1 cuts open.
The specific embodiment
Embodiment one
Present embodiment is that a kind of machining that is used for high accuracy leading screw mill window is used centre frame, and its structure is as depicted in figs. 1 and 2, and the bottom of bearing 10 is fixed on the lathe bed; The swivel nut 11 that is shaped on screw is installed in its horizontal through hole; Horizontal screw bolt 01 is housed in the screw, and this horizontal screw bolt is shaped on the circumference annular groove towards an end of workpiece, and this annular groove is installed in the corresponding draw-in groove in middle rest pad A rear end; Constitute the horizontal direction constraint, be assembled very convenient like this.The rear end of middle rest pad A is inserted in the bearing 10, constitutes moving sets, and front end is stretched out by bearing 10, is used for the clamping workpiece.Can find out that in conjunction with Fig. 3 the cam lock mandrel 17 perpendicular to swivel nut 11 is housed on the bearing 10, and this lock shaft is shaped on the locking notch that matches with swivel nut 11 cylindricals, an end and spanner 18 are connected.Therefore, according to the good swivel nut 11 of diameter of work quick adjustment behind the axial location on the bearing 10, can rotary spanner 18, by the locking notch rapidly with swivel nut 11 kaysers on bearing 10.
The top of bearing 10 is through centering block bearing pin 05 hinge dress fork 06, and an end of the contiguous workpiece of this fork fixedly is equipped with upper support piece B, and the lower end of this upper support piece is shaped on from the inclined-plane of first quartile side top clamping workpiece.The other end of fork 06 is hinged with an end of bridge shape connecting rod 03 through hinge pin 09, and the other end of this bridge shape connecting rod is equipped with the connecting rod screw 02 that is resisted against on bearing 10 sides.0 is emery wheel among Fig. 1.
During use, rest pad A's moved horizontally during adjusting horizontal screw bolt 01 can be realized.Unscrew connecting rod screw 02, can drive bridge shape connecting rod 03, make centering block 06 around bearing pin 05 rotation, thus the up-down of control upper support piece B.Unscrew lever screw rod 04, the push rod through its elongated end makes lever 08 around bearing pin 07 rotation, thus the up-down of control lower support piece C.The formation open center rest structure of this centre frame, the three points centering of three rest pads in upper, middle and lower has improved centering precision greatly, and top rest pad can upwards be opened, and is convenient to from a side workpiece loading and unloading.In rest pad be arranged in the by-level position, bearing radial grinding force, upper and lower two rest pads one-tenth is distributed on the side of workpiece with side under both sides.Three rest pads all adopt the clipping design of unloading, and all can make things convenient for the workman to adjust separately through screw rod or screw fine setting.The material of rest pad divides two kinds of situation, and a kind of is that middle rest pad is bigger because of bearing radial grinding force, selects bronze for use, and upper and lower rest pad is used aluminium alloy; Another kind is that three rest pads all adopt carbide alloy.
In a word, the characteristics of present embodiment are simple in structure, and each part is made easily, assembles easy to adjustly, and three rest pads all adopt the clipping design of unloading, and change after convenient, and optimal design is all passed through in the position of three rest pads, guarantees that centering reliably.
Claims (4)
1. a machining is used centre frame, comprises bearing; It is characterized in that: in the screw on the said bearing horizontal screw bolt is housed, said horizontal screw bolt is equipped with middle rest pad towards an end of workpiece; The top of said bearing is hinged with fork, and an end of the contiguous workpiece of said fork is equipped with the upper support piece, and the lower end of said upper support piece is shaped on from the inclined-plane of first quartile side top clamping workpiece; One end of the other end of said fork and bridge shape connecting rod is hinged, and the other end of said bridge shape connecting rod is equipped with the connecting rod screw that is resisted against on the bearing; Lever is equipped with in the bottom of said bearing, and an end of the contiguous workpiece of said lever is equipped with the lower support piece, and the said upper end of back-up block down is shaped on from the inclined-plane of four-quadrant side-lower clamping workpiece; The other end of said lever is resisted against the lever screw that is installed on the bearing and extends the lower end; Said horizontal screw bolt is shaped on the circumference annular groove towards an end of workpiece, in the draw-in groove of rest pad rear end correspondence, constitutes the horizontal direction constraint during said annular groove is installed on; The rear end of rest pad is inserted in the bearing in said, constitutes moving sets, and front end is stretched out by bearing; The swivel nut that is shaped on screw is installed in the horizontal through hole of said bearing; Cam lock mandrel perpendicular to swivel nut is housed on the said bearing, and said lock shaft is shaped on the locking notch that matches with the swivel nut cylindrical.
2. machining according to claim 1 is used centre frame, it is characterized in that: said upper and lower two rest pads are distributed in respect on the side of workpiece and side-lower one-tenth.
3. machining according to claim 2 is used centre frame, it is characterized in that: the bottom of said bearing is fixed on the lathe bed.
4. machining according to claim 3 is used centre frame, it is characterized in that: an end and the spanner of said lock shaft are connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100216994A CN101417394B (en) | 2008-08-14 | 2008-08-14 | Center rack for processing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100216994A CN101417394B (en) | 2008-08-14 | 2008-08-14 | Center rack for processing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101417394A CN101417394A (en) | 2009-04-29 |
| CN101417394B true CN101417394B (en) | 2012-08-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100216994A Active CN101417394B (en) | 2008-08-14 | 2008-08-14 | Center rack for processing machine |
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| Country | Link |
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| CN (1) | CN101417394B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108645334A (en) * | 2018-05-04 | 2018-10-12 | 中国船舶重工集团公司第七0七研究所 | A kind of barrel axis measuring device and method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1155644A (en) * | 1966-10-20 | 1969-06-18 | Weyburn Engineering Company Lt | Improvements in Work Steadies for use on Machine Tools |
| US3728824A (en) * | 1971-04-26 | 1973-04-24 | Warner Swasey Co | Auxiliary workpiece supporting means for precision grinding machines |
| CN2734403Y (en) * | 2004-10-11 | 2005-10-19 | 李维谦 | Servo center frame |
| CN2843680Y (en) * | 2005-12-02 | 2006-12-06 | 天水星火机床有限责任公司 | Horizontal lathe C-shaped centering holder |
| CN101186018A (en) * | 2007-12-21 | 2008-05-28 | 北京机电院高技术股份有限公司 | Method for processing center frame of equal height triangle sleeve barrel structure and triangle sleeve barrel |
-
2008
- 2008-08-14 CN CN2008100216994A patent/CN101417394B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1155644A (en) * | 1966-10-20 | 1969-06-18 | Weyburn Engineering Company Lt | Improvements in Work Steadies for use on Machine Tools |
| US3728824A (en) * | 1971-04-26 | 1973-04-24 | Warner Swasey Co | Auxiliary workpiece supporting means for precision grinding machines |
| CN2734403Y (en) * | 2004-10-11 | 2005-10-19 | 李维谦 | Servo center frame |
| CN2843680Y (en) * | 2005-12-02 | 2006-12-06 | 天水星火机床有限责任公司 | Horizontal lathe C-shaped centering holder |
| CN101186018A (en) * | 2007-12-21 | 2008-05-28 | 北京机电院高技术股份有限公司 | Method for processing center frame of equal height triangle sleeve barrel structure and triangle sleeve barrel |
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| Publication number | Publication date |
|---|---|
| CN101417394A (en) | 2009-04-29 |
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