CN202356653U - Diagonal draw post type self-centering clamping mechanism - Google Patents
Diagonal draw post type self-centering clamping mechanism Download PDFInfo
- Publication number
- CN202356653U CN202356653U CN2011204206518U CN201120420651U CN202356653U CN 202356653 U CN202356653 U CN 202356653U CN 2011204206518 U CN2011204206518 U CN 2011204206518U CN 201120420651 U CN201120420651 U CN 201120420651U CN 202356653 U CN202356653 U CN 202356653U
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- China
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- disk
- disk body
- draw
- clamping mechanism
- centering clamping
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Abstract
The utility model provides a diagonal draw post type self-centering clamping mechanism, which comprises a disk and clamping jaws. A plurality of inclined grooves in central symmetry are arranged inside the disk, long bushings are mounted in the inclined grooves leading to the bottom of the disk, a draw disk is arranged at the center of the bottom of the disk, the upper end of the draw disk is in sliding fit with the disk through the long bushings, two circles of latches are arranged on the periphery of the draw disk to clamp clamping grooves at the lower ends of three diagonal draw bars, the diagonal draw bars penetrate into the long bushings, the clamping jaws are fixed by the upper ends of the diagonal draw bars, the outer sides of the clamping jaws are slidably connected with the clamping grooves in positioning seats, and the positioning seats are fixed to the outer edge of the disk. A draw bar is fixed to the lower portion of the draw disk, the upper end of the draw bar penetrates into the draw disk, the lower end of the disk is fixed onto a lathe through a connecting disk, and a positioning shaft is tightly matched with the connecting disk and an assembly hole of the lathe. The self-centering clamping mechanism has the advantages that the angular positioning seat for the clamping jaws is designed, and the distance between the positioning seat and the center of a diagonal sliding post is approximately equal to that between the head of each clamping jaw and the center of the diagonal sliding post, so that a sliding gap cannot function in amplification, and repeated positioning precision can reach 0.015mm.
Description
Technical field
The utility model relates to a kind of oblique stay column self-centering clamping mechanism, belongs to machinery manufacturing technology field.
Background technology
In machining, run into the high inner hole part of processing concentricity requirement through regular meeting.Installation way commonly used is the three-jaw self-centering clamping.But after the clamping of general scroll chuck, the repetitive positioning accuracy of workpiece endoporus and claw is not high, and about 0.05mm, even the oblique stay column chuck of three-jaw form, repetitive positioning accuracy also can only reach 0.03mm usually, can't satisfy the high-precision processing demand of part in batches.
Summary of the invention
The purpose of the utility model is the defective that solves above two kinds of structures, and a kind of oblique stay column self-centering clamping mechanism is provided, and is fit to high-precision workpiece processing.
According to the technical scheme that the utility model provides, said oblique stay column self-centering clamping mechanism comprises: disk body, claw, and there are a plurality of centrosymmetric skewed slots said disk body inside; Long bushing is installed in the skewed slot, and skewed slot leads to the disk body bottom, is provided with in disk body bottom centre and draws dish; Draw the dish upper end to join, draw dish to have two circle latches one week, block the draw-in groove of three brace lower ends through Large lining and disk body cunning; Brace is through in the said long bushing; The fixing said claw in brace upper end, the claw outside is slidingly connected with the interior draw-in groove of positioning seat, and positioning seat is fixed in said disk body outer; Be fixed with pull bar in the said dish bottom of drawing, the pull bar upper end is pierced into and is drawn dish, and the pull bar upper end is fixed on by plug draws in the dish; At the disk body upper surface supporting is set, the upper surface of supporting is in a plane; Said disk body lower end is fixed on the lathe through terminal pad, and the center of terminal pad has circular hole, and locating shaft passes the pilot hole of said circular hole and lathe simultaneously, the pilot hole close-fitting of said locating shaft and terminal pad and lathe; Said drawing between dish and the terminal pad has a gap.
Disk body above plug is by the cover plate cap seal.Be lined with packing ring between said cover plate and the disk body.
Said disk body lower end and terminal pad are solid through locking.Said terminal pad and lathe are fastening through double-screw bolt.
Said disk body upper surface also is provided with a plurality of lifting bolts.
Slit upper shed place envelope between said brace and the long bushing has dust ring.
Be provided with oil nozzle at said long bushing sidewall, oil nozzle 13 penetrates said disk body.
The utility model has the advantages that: owing to be designed with claw angle positioning seat, positioning seat is equal basically to oblique traveller centre distance to oblique traveller center and claw head, so glade plane space does not have amplification, repetitive positioning accuracy can reach 0.015mm.
Description of drawings
Fig. 1 is the utility model front view.
Fig. 2 is the A-A cutaway view of Fig. 1.
Fig. 3 is the utility model perspective view.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described further.
Shown in Fig. 1 ~ 3: the described oblique stay column self-centering clamping mechanism of the utility model comprises: disk body 1, claw 8, and there are 3 centrosymmetric skewed slots said disk body 1 inside, and long bushing 11 is installed in the skewed slot; Skewed slot leads to disk body 1 bottom, is provided with in disk body 1 bottom centre and draws dish 3, draws dish 3 upper ends through Large lining 2 and 1 sliding joining of disk body; Draw dish to have two circle latches 3 one weeks; Block the draw-in groove of three brace 9 lower ends, brace 9 is through in the said long bushing 11, and said claw 8 is fixed in brace 9 upper ends; Draw-in groove in claw 8 outsides and the positioning seat 12 is slidingly connected, and positioning seat 12 is fixed in said disk body 1 outer; Be fixed with pull bar 6 in said dish 3 bottoms of drawing, pull bar 6 upper ends are pierced into and are drawn dish 3, and pull bar 6 upper ends are fixed on by plug 14 and draw in the dish 3; At disk body 1 upper surface supporting 7 is set, the upper surface of supporting 7 is in a plane; Said disk body 1 lower end is fixed on the lathe through terminal pad 4, and the center of terminal pad 4 has circular hole, and locating shaft 5 passes the pilot hole of said circular hole and lathe simultaneously, the pilot hole close-fitting of said locating shaft 5 and terminal pad 4 and lathe.Said drawing between dish 3 and the terminal pad 4 has a gap, draws dish 3 can in disk body 1, do very little moving up and down.
Said disk body 1 lower end and terminal pad 4 are solid through locking.Terminal pad 4 is fastening through double-screw bolt with lathe.
Also be provided with a plurality of lifting bolts 15 at said disk body 1 upper surface.
Slit upper shed place envelope between said brace 9 and the long bushing 11 has dust ring 10.Be provided with oil nozzle 13 at long bushing 11 sidewalls, oil nozzle 13 penetrates said disk body 1, is used to add lubricating oil.
The claw of the general oblique stay column chuck of three-jaw is positioned at through pin or key on the end face of oblique stay column, because after gapped, the place has the error amplification effect at the claw locating surface, causes the not high phenomenon of repetitive positioning accuracy.This clamp mechanism adopts brace 9 guiding and the accurate detent mechanisms of claw 8 angles, and 3 braces 9 move down the locating clip clamping of workpieces.Owing to be designed with claw 8 angle positioning seats 12, positioning seat 12 is equal basically to brace 9 centre distances with claw 8 heads to brace 9 centers, so glade plane space does not have amplification, repetitive positioning accuracy can reach 0.015mm.
Concrete operating principle is following: after workpiece was placed in the supporting 7, brace 6 moved downward, and drew dish 3 to move down; Driving 3 braces 9 moves in long bushing 11; Claw 8 is installed on the brace 9, produces to move and move downward to the center, thus clamping work pieces.
Claims (8)
1. oblique stay column self-centering clamping mechanism comprises disk body (1), claw (8), and it is characterized in that: there are a plurality of centrosymmetric skewed slots said disk body (1) inside; Long bushing (11) is installed in the skewed slot; Skewed slot leads to disk body (1) bottom, is provided with in disk body (1) bottom centre and draws dish (3), draws dish (3) upper end to join through Large lining (2) and disk body (1) are sliding; Draw and have two circle latches in (3) one weeks of dish; Block the draw-in groove of three braces (9) lower end, brace (9) is through in the said long bushing (11), the fixing said claw (8) in brace (9) upper end; Claw (8) outside is slidingly connected with the interior draw-in groove of positioning seat (12), and positioning seat (12) is fixed in said disk body (1) outer; Be fixed with pull bar (6) in said dish (3) bottom of drawing, pull bar (6) upper end is pierced into and is drawn dish (3), and pull bar (6) upper end is fixed on by plug (14) draws in the dish (3); At disk body (1) upper surface supporting (7) is set, the upper surface of supporting (7) is in a plane; Said disk body (1) lower end is fixed on the lathe through terminal pad (4); The center of terminal pad (4) has circular hole; Locating shaft (5) passes the pilot hole of said circular hole and lathe simultaneously, the pilot hole close-fitting of said locating shaft (5) and terminal pad (4) and lathe; Said drawing between dish (3) and the terminal pad (4) has a gap.
2. oblique according to claim 1 stay column self-centering clamping mechanism is characterized in that the disk body (1) above plug (14) is by cover plate (16) cap seal.
3. like the said oblique stay column self-centering clamping mechanism of claim 2, it is characterized in that, be lined with packing ring (17) between said cover plate (16) and the disk body (1).
4. oblique according to claim 1 stay column self-centering clamping mechanism is characterized in that said disk body (1) lower end and terminal pad (4) are solid through locking.
5. oblique according to claim 1 stay column self-centering clamping mechanism is characterized in that said terminal pad (4) is fastening through double-screw bolt with lathe.
6. oblique according to claim 1 stay column self-centering clamping mechanism is characterized in that said disk body (1) upper surface is provided with a plurality of lifting bolts (15).
7. oblique according to claim 1 stay column self-centering clamping mechanism is characterized in that, the slit upper shed place envelope between said brace (9) and the long bushing (11) has dust ring (10).
8. oblique according to claim 1 stay column self-centering clamping mechanism is characterized in that be provided with oil nozzle (13) at said long bushing (11) sidewall, oil nozzle (13) penetrates said disk body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204206518U CN202356653U (en) | 2011-10-28 | 2011-10-28 | Diagonal draw post type self-centering clamping mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204206518U CN202356653U (en) | 2011-10-28 | 2011-10-28 | Diagonal draw post type self-centering clamping mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202356653U true CN202356653U (en) | 2012-08-01 |
Family
ID=46567870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204206518U Expired - Lifetime CN202356653U (en) | 2011-10-28 | 2011-10-28 | Diagonal draw post type self-centering clamping mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202356653U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102343448A (en) * | 2011-10-28 | 2012-02-08 | 无锡倍安杰机械科技有限公司 | Self-centering clamping mechanism for cable-stayed columns |
| CN106271789A (en) * | 2016-10-26 | 2017-01-04 | 昆山勇翔精密机械有限公司 | Rocker box turning attachment |
| CN107262758A (en) * | 2017-07-26 | 2017-10-20 | 佛山汉格斯环保科技有限公司 | A kind of numerically controlled lathe collet clamp system |
| CN110494241A (en) * | 2017-03-28 | 2019-11-22 | 提克尼冈有限责任公司 | Expansion chuck with sloping slide |
| CN112091253A (en) * | 2020-08-27 | 2020-12-18 | 浙江京速机床附件有限公司 | Double-acting inclined-pulling type chuck |
-
2011
- 2011-10-28 CN CN2011204206518U patent/CN202356653U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102343448A (en) * | 2011-10-28 | 2012-02-08 | 无锡倍安杰机械科技有限公司 | Self-centering clamping mechanism for cable-stayed columns |
| CN106271789A (en) * | 2016-10-26 | 2017-01-04 | 昆山勇翔精密机械有限公司 | Rocker box turning attachment |
| CN110494241A (en) * | 2017-03-28 | 2019-11-22 | 提克尼冈有限责任公司 | Expansion chuck with sloping slide |
| CN107262758A (en) * | 2017-07-26 | 2017-10-20 | 佛山汉格斯环保科技有限公司 | A kind of numerically controlled lathe collet clamp system |
| CN112091253A (en) * | 2020-08-27 | 2020-12-18 | 浙江京速机床附件有限公司 | Double-acting inclined-pulling type chuck |
| CN112091253B (en) * | 2020-08-27 | 2021-08-20 | 浙江京速机床附件有限公司 | Double-acting inclined-pulling type chuck |
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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: 20120801 |
|
| CX01 | Expiry of patent term |