CN201279594Y - Center rest of horizontal lathe - Google Patents
Center rest of horizontal lathe Download PDFInfo
- Publication number
- CN201279594Y CN201279594Y CNU2008201121982U CN200820112198U CN201279594Y CN 201279594 Y CN201279594 Y CN 201279594Y CN U2008201121982 U CNU2008201121982 U CN U2008201121982U CN 200820112198 U CN200820112198 U CN 200820112198U CN 201279594 Y CN201279594 Y CN 201279594Y
- Authority
- CN
- China
- Prior art keywords
- centre frame
- horizontal lathe
- bow
- rolling element
- axle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model provides a center frame of a horizontal-type machine tool, which comprises an upper frame element (1) and a lower frame element (2), wherein, the upper frame element (1) is connected with the lower frame element (2) through a hinge shaft (13); three supporting screw rods (3) are uniformly arranged on the circumference on the inner wall of the center frame, and each supporting screw rod (3) is movably connected with the middle part of an arc rod (5) through a pin shaft (4), and both ends of the arc rod (5) are respectively provided with a rolling body, and the rolling body is connected with the arc rod (5) through a shaft (6). The rolling body can be a cylindrical roller and also can be a bearing (7). The center frame improves the stability and the working efficiency of the machine tool for processing the large-sized work piece, and ensures the processing precision of the large-sized work piece.
Description
Technical field
The utility model relates to the lathe centre frame, in particular the centre frame of horizontal lathe
Background technology
The centre frame of existing horizontal lathe, what equally distributed three-point support adopted on circumference is pair of friction components, this version, can only be used in the supporting volume and weight is not very big workpiece, when the workpiece volume and weight of processing is big, show following deficiency: because the effect of gravity is fast especially to the wearing and tearing of pair of friction components, the size and the surface accuracy that cause processing workpiece all can't meet the demands (1).(2) because workpiece size is bigger, linear velocity can not be too high under the pair of friction components supporting, and turning speed is low, make that the working (machining) efficiency of lathe is low, and the wearing and tearing of supporting member is very fast.
Summary of the invention
The purpose of this utility model is at the deficiencies in the prior art, and a kind of centre frame that is used in the horizontal lathe of machining large workpiece is provided.
The utility model is achieved like this, the centre frame of horizontal lathe comprises put on the shelf part and undercarriage spare, the part of putting on the shelf is connected by hinge axis with undercarriage spare, and three equally distributed supporting gong bars are arranged on the circumference of centre frame inwall, it is characterized in that; Each supporting gong bar flexibly connects by the middle part of a bearing pin and a bow, and the two ends of bow are respectively arranged with rolling element, and rolling element is connected with bow by axle.
Rolling element can be cylindrical roller and cooperate with axle is movable, and rolling element also can be 1～2 bearing and fixedly connected with axle.
The improved beneficial effect of the utility model is, because at least six lines (roller or the bearing) roller that has adopted supporting, the good stability of ratio 3 the friction types supportings in the past, to with the machining large workpiece, the active force of workpiece on centre frame disperses, supporting member is stressed evenly, improved the rigidity of centre frame, can guarantee that workpiece high-speed smooth on lathe do not have gap rotation, processing cutting speed and precision have been increased substantially, the size and the surface accuracy of the workpiece that processes have been guaranteed, the operating efficiency that improved lathe.Rolling bearing is not easy to wear in addition, long service life, a large amount of savings to the consumption of supporting member.
Description of drawings
Fig. 1 is the front view of an embodiment of centre frame of horizontal lathe described in the utility model;
Fig. 2 be Figure 1A to enlarged diagram;
Fig. 3 is the structural representation of Figure 1A to second embodiment;
The specific embodiment
Below by the drawings and specific embodiments, the technical solution of the utility model is described in further detail.
Embodiment one:
As shown in Figure 1 and Figure 2, centre frame comprises put on the shelf part 1 and undercarriage spare 2, put on the shelf part 1 and undercarriage spare 2 links together by hinge axis 13, part 1 and undercarriage spare 2 put on the shelf when closing up, by 12 lockings of gong bar, the formed circumference of inwall of put on the shelf part 1 and undercarriage spare 2 is provided with three equally distributed gong holes, and the gong bar 3 that is used to support processing work is installed in the gong hole, end at gong bar 3 centre frame inwalls is provided with bow 5, and bow 5 middle parts flexibly connect by a bearing pin 4 and gong bar 3.Be respectively arranged with bearing 7 (or roller) at the two ends of each bow 5.Bearing 7 is fixedlyed connected (or roller and bearing pin 6 flexible connections) by bearing pin 6 with bow.
Centre frame is fixed on the guide rail 8 of lathe by connector (gong bar 10, nut 9 and pressing plate 1).
Embodiment two: Fig. 3 is second embodiment of the utility model, and the rolling element that the two ends of bow 5 are provided with is two bearings, and other version is consistent with first embodiment.
Claims (3)
1, a kind of centre frame of horizontal lathe comprises part of putting on the shelf (1) and undercarriage spare (2), and the part of putting on the shelf (1) is connected by hinge axis (13) with undercarriage spare (2), and three equally distributed supporting gong bars (3) are arranged on the circumference of centre frame inwall, it is characterized in that; Each supporting gong bar (3) flexibly connects by the middle part of a bearing pin (4) with a bow (5), and the two ends of bow (5) are respectively arranged with rolling element, and rolling element is connected with bow (5) by axle (6).
2, the centre frame of horizontal lathe according to claim 1 is characterized in that: rolling element can be a cylindrical roller and cooperate with axle (6) is movable, also can be bearing (7) and fixedlys connected with axle (6).
3, the centre frame of horizontal lathe according to claim 1 is characterized in that: rolling element is 2 bearings (15) and fixedlys connected with axle (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201121982U CN201279594Y (en) | 2008-05-14 | 2008-05-14 | Center rest of horizontal lathe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201121982U CN201279594Y (en) | 2008-05-14 | 2008-05-14 | Center rest of horizontal lathe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201279594Y true CN201279594Y (en) | 2009-07-29 |
Family
ID=40926482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201121982U Expired - Lifetime CN201279594Y (en) | 2008-05-14 | 2008-05-14 | Center rest of horizontal lathe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201279594Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102896516A (en) * | 2011-07-29 | 2013-01-30 | 吴江市和喜机械有限公司 | Positioning fixture for bars |
| CN104325306A (en) * | 2014-10-21 | 2015-02-04 | 北京北机机电工业有限责任公司 | Working platform for fixing rotary body |
| CN104801965A (en) * | 2015-04-08 | 2015-07-29 | 北京星航机电装备有限公司 | Support clamp ring for butting large tubular part |
-
2008
- 2008-05-14 CN CNU2008201121982U patent/CN201279594Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102896516A (en) * | 2011-07-29 | 2013-01-30 | 吴江市和喜机械有限公司 | Positioning fixture for bars |
| CN102896516B (en) * | 2011-07-29 | 2015-04-08 | 吴江市和喜机械有限公司 | Positioning fixture for bars |
| CN104325306A (en) * | 2014-10-21 | 2015-02-04 | 北京北机机电工业有限责任公司 | Working platform for fixing rotary body |
| CN104801965A (en) * | 2015-04-08 | 2015-07-29 | 北京星航机电装备有限公司 | Support clamp ring for butting large tubular part |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090729 |
|
| CX01 | Expiry of patent term |