CN2790639Y - Clamping center - Google Patents
Clamping center Download PDFInfo
- Publication number
- CN2790639Y CN2790639Y CN 200520041761 CN200520041761U CN2790639Y CN 2790639 Y CN2790639 Y CN 2790639Y CN 200520041761 CN200520041761 CN 200520041761 CN 200520041761 U CN200520041761 U CN 200520041761U CN 2790639 Y CN2790639 Y CN 2790639Y
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- Prior art keywords
- chuck
- center
- claw
- clamping
- utility
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Abstract
The utility model provides a clamping center, which belongs to the field of the mechanical technology. The utility model relates to a center used in machine tools, and the clamping center is arranged on a machine tool. The utility model comprises a clamping chuck and a center, wherein the center is provided with a claw, and the claw is arranged on the clamping chuck; the center penetrates through the clamping chuck, and a bearing is arranged between the clamping chuck and the center. Because the clamping center of the utility model uses a separated structure of the clamping chuck and the center, the positioning of work pieces is accurate and stable when the machine tool carries out processing to the work pieces, and machining accuracy and quality are enhanced; meanwhile, the machine tool has easy fabrication and the center is easy to replace when the center is worn out. In the course of using the clamping chuck with a spring to clamp a work piece, a claw rack can automatically carry out deflection along with the spring, and the alignment of the center of the work piece and the center is not influenced; the utility model has the advantage of simple and reasonable structure.
Description
Technical field
The utility model belongs to field of mechanical technique, relates to use on a kind of lathe top.
Background technology
In ordinary machine tool particularly in the grinding machine, top being loaded on its main shaft, and clamp workpiece by chuck.At present, top mostly and chuck or the be used to chuck that blocks workpiece be fixed together.Top meeting is along with chuck rotates together when lathe is worked.
Because in chuck or chuck holding workpiece process, chuck or chuck can have active force to workpiece, therefore make the off-centring of workpiece top easily, directly have influence on the crudy of workpiece.
In addition, after top head wearing and tearing, it is top to change whole clamping, and shortened the service life of whole parts.
Summary of the invention
The purpose of this utility model is top existing the problems referred to above of using on the existing lathe, provides a kind of clamping top, make top motionless with respect to chuck, thereby improve the machining accuracy of lathe, prolong its service life.
The purpose of this utility model can realize by following technical proposal: this clamping is top to be contained on the lathe, and it comprises chuck and top, is provided with claw at top place, claw is loaded on the chuck, it is characterized in that the described top chuck that passes is provided with bearing between top and chuck.
This clamping is top to be loaded on the lathe.When clamping workpiece, the top center that peaks at workpiece, claw is sandwiched in the outside of workpiece.Be not offset by the top position of workpiece that makes.Owing between top and chuck, bearing is set, make chuck top maintenance in rotation process motionless, so the position of workpiece can change yet, thereby improve the machining accuracy of lathe.
In above-mentioned clamping was top, described chuck place had a claw frame, on the claw frame claw is housed, and was connected by spring between claw frame and the chuck.When peaking at workpiece centre, the gap between each claw and the side surface of workpiece is inconsistent when top, therefore in the holding workpiece process, can utilize spring to make the suitably skew and realize workpiece is stably clamped of claw frame.
In above-mentioned clamping was top, described chuck is provided with one clamped or open hydraulic means claw, and back-moving spring is housed in chuck, and the end of back-moving spring acts on the claw.
In above-mentioned clamping was top, described top and contact position chuck were provided with oil sealing.Make the hydraulic oil in the hydraulic means can not leak by oil sealing.
This clamping is top can be used for various types of lathes, is particularly suitable for using on the grinding machine.
Compared with prior art, the top because chuck of clamping of the present utility model with top be split type structure, make lathe stablize the accurate positioning of workpiece man-hour adding, improved machining accuracy and quality.Simultaneously, lathe is easily manufactured, and top wearing and tearing back is changed easily.
Adopt in the chuck holding workpiece process of band spring, the claw frame can not influence workpiece centre and align with top along with the spring automatic deviation, and is simple and reasonable, has higher utility.
Description of drawings
Fig. 1 is the structural representation of embodiment one of the present utility model.
Fig. 2 is the schematic diagram of embodiment two of the present utility model.
Fig. 3 is the structural representation at embodiment of the present utility model two claw frame places.
Among the figure, 1, chuck; 1a, cylinder body; 1b, chute; 1c, preceding chuck; 1d, back chuck; 2, top; 3, claw; 4, bearing; 5, spring; 6, piston; 7, oil sealing; 8, claw frame; 9, sliding sleeve; 10, pin; 11, back-moving spring; 12, dog screw.
The specific embodiment
Embodiment one
As shown in Figure 1, this clamping is top is loaded in the grinding machine.It comprises chuck 1, top 2, claw 3 and bearing 4.
Top 2 pass chuck 1, top 2 and chuck 1 between be provided with bearing 4, chuck 1 can be that rotate in the axle center with top 2.
There are two cylinder body 1a chuck 1 inside, and they lay respectively at top 2 both sides.A piston 6 and back-moving spring 11 are all arranged in two cylinder body 1a.In the present embodiment, be with a sliding sleeve 9 on top 2 of cylinder body 1a place.Sliding sleeve 9 can rotate with respect to top 2.The two ends of above-mentioned back-moving spring 11 act on respectively on sliding sleeve 9 and the piston 6.
Top 2 and chuck 1 between be provided with oil sealing 7, oil sealing 7 plays the effect that prevents the hydraulic fluid leak in the piston 6.Piston 6 stretches out cylinder body 1a, and at the external part claw 3 that is being connected.Also have a chute 1b at cylinder body 1a place, claw 3 moves along chute 1b.
As shown in Figure 1, in the present embodiment, chuck 1c and back chuck 1d before above-mentioned chuck 1 is divided into.Hydraulic means and cylinder body 1a all are in preceding chuck 1c place.Back chuck 1d links by the motor of a transmission mechanism and grinding machine, rotates by chuck 1d after the driven by motor, and whole chuck 1 is rotated together.Obviously, in chuck 1 rotation process, top 2 be remain fixed.
As shown in Figure 1, during holding workpiece, the center of workpiece is placed on top 3, the hydraulic oil in the fluid pressure line enters in the cylinder body 1a.Under hydraulic action, two pistons 6 all overcome the elastic force of back-moving spring 11, move towards top 2 directions.Because piston 6 is fixed together with claw 3, thereby claw 3 also can shift to top 2 places along above-mentioned chute 1b, and claw 3 is clamped workpiece.After to the workpiece completion of processing, as long as make the fluid pressure line release, two pistons 6 will open under the effect of back-moving spring 11, have also just unclamped workpiece.
Embodiment two
As shown in Figure 2, during this clamping was top, claw 3 was to adopt the structure of mechanical grip to come holding workpiece.It comprises parts such as chuck 1, top 2, claw 3, bearing 4 and spring 5.
Top 2 pass chuck 1, top 2 and chuck 1 between be provided with bearing 4, chuck 1 can be that rotate in the axle center with top 2.The spring 5 that is being connected on the chuck 1, the other end of the spring 5 claw frame 8 that is being connected, claw 3 just is contained on the claw frame 8.In the present embodiment, spring 5 is welded on claw frame 8 and the chuck 1.
As Fig. 3 and shown in Figure 2, claw 3 is fixed on the claw frame 8 by dog screw 12.In the present embodiment, offer chute 1b on claw frame 8, dog screw 12 is through at chute 1b claw 3 is connected on the claw frame 8.Utilize this chute 1b can regulate the position of each claw 3.In the present embodiment, claw 3 evenly distributes on claw frame 8, claw 3 is three, wherein there are two to be V-shaped claw 3, be fixed on the claw frame 8 by dog screw 12, also having a claw 9 is to be hinged on the claw frame 8 by pin 10, and it to stretch into the position of claw frame 8 curved, pull this claw 9 and can make its its medial surface roof pressure on workpiece, workpiece is fixed on the claw frame 8.
Centre bore on the workpiece end face is withstood with top 2 heads, use claw 3 holding workpieces on the above-mentioned claw frame 8 then.In the holding workpiece process, the skew of trace might appear.This skew is just regulated by spring 5.
At this moment, the motor of grinding machine drives chuck 1 by transmission mechanism and rotates, and workpiece and then rotates together, but top 2 is fixed.
Claims (6)
1, a kind of clamping is top, is contained on the lathe, and it comprises chuck (1) and top (2), locate to be provided with claw (3) in top (2), claw (3) is loaded on the chuck (1), it is characterized in that, described top (2) pass chuck (1), are provided with bearing (4) between top (2) and chuck (1).
2, clamping according to claim 1 is top, it is characterized in that, described chuck (1) locates to have a claw frame (8), and claw (3) is housed on the claw frame (8), is connected by spring (5) between claw frame (8) and the chuck (1).
3, clamping according to claim 1 is top, it is characterized in that, described chuck (1) is provided with one clamps or open hydraulic means claw (3), and back-moving spring (11) is housed in chuck (1), and the end of back-moving spring (11) acts on the claw (3).
4, clamping according to claim 3 is top, it is characterized in that, described top (2) are provided with oil sealing (7) with the contact position of chuck (1).
5, clamping according to claim 4 is top, it is characterized in that, there are two cylinder bodies (1a) described chuck (1) inside, and they lay respectively at the both sides of top (2), and a piston (6) and back-moving spring (11) are all arranged in two cylinder bodies (1a).
6, clamping according to claim 5 is top, it is characterized in that, is with a sliding sleeve (9) on top (2) that described cylinder body (1a) is located, and the two ends of back-moving spring (11) act on respectively on sliding sleeve (9) and the piston (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520041761 CN2790639Y (en) | 2005-05-23 | 2005-05-23 | Clamping center |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520041761 CN2790639Y (en) | 2005-05-23 | 2005-05-23 | Clamping center |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2790639Y true CN2790639Y (en) | 2006-06-28 |
Family
ID=36806720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520041761 Expired - Fee Related CN2790639Y (en) | 2005-05-23 | 2005-05-23 | Clamping center |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2790639Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102886535A (en) * | 2012-10-30 | 2013-01-23 | 齐齐哈尔齐一机工业产品有限公司 | Machine tool tailstock following face plate for processing large-diameter thin-wall cylinder |
| CN103240431A (en) * | 2013-05-16 | 2013-08-14 | 西北工业大学 | Hydraulic chuck |
| CN103878617A (en) * | 2014-03-25 | 2014-06-25 | 浙江大学 | Hydraulic floating centering and clamping transmission device |
| CN104057102A (en) * | 2014-06-24 | 2014-09-24 | 芜湖求精紧固件有限公司 | Lathe |
| CN104354183A (en) * | 2014-11-06 | 2015-02-18 | 建新赵氏集团有限公司 | Clamping device |
| CN104526382A (en) * | 2014-12-11 | 2015-04-22 | 重庆舰帏机械有限公司 | Noncircular shaft machining fixture |
| CN108406010A (en) * | 2018-06-08 | 2018-08-17 | 合肥长源液压股份有限公司 | A kind of numerically control grinder air-actuated jaw for gear grinding |
| CN112589674A (en) * | 2020-12-28 | 2021-04-02 | 大连长丰实业总公司 | Clamping device capable of being used for improving grinding precision of shaft parts |
| CN117644217A (en) * | 2024-01-29 | 2024-03-05 | 山东豪迈精密机械有限公司 | Digit control machine tool clamping device and digit control machine tool |
-
2005
- 2005-05-23 CN CN 200520041761 patent/CN2790639Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102886535A (en) * | 2012-10-30 | 2013-01-23 | 齐齐哈尔齐一机工业产品有限公司 | Machine tool tailstock following face plate for processing large-diameter thin-wall cylinder |
| CN103240431A (en) * | 2013-05-16 | 2013-08-14 | 西北工业大学 | Hydraulic chuck |
| CN103878617A (en) * | 2014-03-25 | 2014-06-25 | 浙江大学 | Hydraulic floating centering and clamping transmission device |
| CN104057102A (en) * | 2014-06-24 | 2014-09-24 | 芜湖求精紧固件有限公司 | Lathe |
| CN104354183A (en) * | 2014-11-06 | 2015-02-18 | 建新赵氏集团有限公司 | Clamping device |
| CN104354183B (en) * | 2014-11-06 | 2016-05-18 | 建新赵氏集团有限公司 | A kind of clamping device |
| CN104526382A (en) * | 2014-12-11 | 2015-04-22 | 重庆舰帏机械有限公司 | Noncircular shaft machining fixture |
| CN108406010A (en) * | 2018-06-08 | 2018-08-17 | 合肥长源液压股份有限公司 | A kind of numerically control grinder air-actuated jaw for gear grinding |
| CN112589674A (en) * | 2020-12-28 | 2021-04-02 | 大连长丰实业总公司 | Clamping device capable of being used for improving grinding precision of shaft parts |
| CN117644217A (en) * | 2024-01-29 | 2024-03-05 | 山东豪迈精密机械有限公司 | Digit control machine tool clamping device and digit control machine tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |