CN1012716B - Compound chuck - Google Patents
Compound chuckInfo
- Publication number
- CN1012716B CN1012716B CN 87100478 CN87100478A CN1012716B CN 1012716 B CN1012716 B CN 1012716B CN 87100478 CN87100478 CN 87100478 CN 87100478 A CN87100478 A CN 87100478A CN 1012716 B CN1012716 B CN 1012716B
- Authority
- CN
- China
- Prior art keywords
- parcel
- slide
- chuck
- screw rod
- jaw
- 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
Links
Images
Landscapes
- Gripping On Spindles (AREA)
Abstract
The present invention relates to a machine tool accessory which is a composite chuck for carrying out self-centering clamping or single-acting clamping for workpieces in a mechanical processing mode. Half annular grooves (9) are formed at both heads of the bottom surface of a chuck jaw (5) of the chuck, wherein the half annular grooves (9) are matched with an annular convex rib (11) on a screw (6). Screw threads (12) are formed in the middle of the screw (6) and are engaged with female screw threads (14) on a sliding seat (7). The sliding seat (7) and the chuck jaw (5) have positioning structures. The conversion of self-centering clamping and single-acting clamping of the composite chuck is easy. The structure of the present invention is compact.
Description
The present invention relates to be used for machining is carried out self-centering clamping or single action clamping to workpiece general combination chuck.
Generally in machine cut processing, the clamping of workpiece there are three-jaw self-centering chuck and four-jaw chuck, and have the combination chuck that self-centering and single action clamp two kinds of functions concurrently.Existing combination chuck as:
R
HM company product sample, 1980/2, the 34 page of disclosed combination chuck.This combination chuck when using the round piece self-centering clamping instead, must carry out concentric centering to each claw, but so both time-consuming, difficulty was looked for after the claw single action clamps erose workpiece, inaccurate again, often wanted repeated multiple times, had influenced operating efficiency; This chuck is when single action clamping work pieces rotating screw bolt in addition, match with semicircular ring groove in the slide with the annulus card muscle on the screw rod, stressed by two contact end faces, it is very big to bear contact stress like this on two contact-making surfaces, for reducing contact stress, must strengthen screw diameter, therefore, cause the volume heaviness of whole chuck.
Task of the present invention is in order to overcome the defective of the above described combination chuck of giving an example, and a kind of self-centering clamping exactly is provided, and reduces the contact stress of screw rod in the combination chuck, reduces the combination chuck of the volume of screw rod and whole chuck.
The scheme that task of the present invention solves is: have columniform disk body, and be installed in parcel body in the disk body with one heart, one side of this parcel body has bevel gear, opposite side has parcel, the cone pinion that is meshed with bevel gear on the parcel body is being housed on the disk body axis normal direction, the gland that withstands on the parcel body is arranged below the disk body, the compound claw that is meshed with parcel is housed in the radially guide groove on the disk body other end, this compound claw is the slide that is meshed by the parcel with the parcel body, be installed in the jaw body on the slide, and be installed in screw rod between slide and the jaw body, has annular convex rib on the screw rod, and the stage casing has screw thread, there is semi-circular groove and the locating slot that matches with annular convex rib on the screw rod jaw body bottom surface, have above the slide with screw rod on the negative thread and the location lug of threaded engagement, location lug matches with locating slot in the jaw body, the length L of locating slot in the jaw body
1Length L greater than location lug on the slide
2
The length L of locating slot in the jaw body in the combination chuck of the present invention
1Deduct the length L of location lug on the slide
2Can be greater than parcel tooth pitch S on the slide.This combination chuck is when slide and parcel body relative position are constant, and the maximum amount of movement of single jaw body is L
1-L
2, if when the eccentric adjustment amount of single jaw body is not enough, can adjust the relative position of slide and parcel body, establishing the slide tooth pitch that matches with parcel is S, needs only L
1-L
2S, the offset of jaw body can be adjusted realization arbitrarily.
Annular convex rib in the combination chuck of the present invention on the screw rod can be built in two of screw rod, and every be ring of numbers respectively, is generally 2 rings or 3 rings.
Semi-cylindrical in this combination chuck on the jaw body, annular groove designs on slide, and the negative thread in the slide, half slot are designed on jaw body, and the essence of its chuck is constant; Equally the locating slot in the jaw body is designed on slide, the location lug design on the slide is in jaw body, and the essence of its chuck is constant.
This combination chuck can be made the four paws form, also can make the three-jaw form, and it is good generally making the four paws form.
At present common combination chuck is not owing to have concentric location structure on the jaw body, when making self-centering clamping, must first rotating screw bolt align the clamping working face of jaw body-be concentricity, then could self-centering clamping, this levelling concentricity will be carried out repeated multiple times, both time-consuming, difficulty is looked for, inaccurate again, and the present invention has locating slot on jaw body, location lug is arranged on the slide, as long as corresponding two locating surface butts can carry out self-centering clamping; Screw rod bears axial thrust power several annulus is arranged in this combination chuck in addition, is generally the 4-6 ring, contact stress is fallen be several times lower than, thereby make screw diameter and whole chuck volume-diminished.
Fig. 1 is according to the profile of combination chuck of the present invention;
Fig. 2 is according to the vertical view of combination chuck of the present invention;
Fig. 3, the left view of combination chuck jaw body of the present invention;
Fig. 4, the front view of combination chuck jaw body of the present invention;
Fig. 5, the left view of combination chuck screw rod of the present invention;
Fig. 6, the front view of combination chuck screw rod of the present invention;
Fig. 7, the left view of combination chuck slide of the present invention;
Fig. 8, the front view of combination chuck slide of the present invention.
Described embodiment explains details of the present invention below in conjunction with accompanying drawing.
This combination chuck has columniform disk body (1), and be installed in parcel body (2) in the disk body (1) with one heart, one side of this parcel body (2) has bevel gear, opposite side has parcel, on disk body (1) axis normal direction, be equipped with parcel body (2) and go up the cone pinion (3) that bevel gear is meshed, the gland (4) that withstands on the parcel body (2) is arranged below the disk body (1), the compound claw that is meshed with the parcel of parcel body (2) is housed in the radially guide groove on disk body (1) other end, this compound claw is the slide (7) that is meshed by the parcel with parcel body (2), between slide (7) and the jaw body (5) screw rod (6) is arranged, there is semi-circular groove (9) jaw body (5) bottom surface, groove (9) matches with annular concave bar (11) on the screw rod (6), annular convex rib (11) is at two of screw rod (6), general every is 2 rings or 3 rings, one section is screw thread (12) in the middle of the screw rod (6), screw thread (12) is meshed with negative thread (14) on the slide (7), location lug (13) is arranged on the slide (7), location lug (13) matches with locating slot (10) in the jaw body (5), the length L of locating slot (10) in the jaw body (5)
1Go up the length L of location lug (13) greater than slide (7)
2, the length L of locating slot (10) in the jaw body (5)
1Deduct slide (7) and go up the length L of location lug (13)
2Go up tooth pitch S greater than slide (7).Jaw body (5) is semi-cylindrical (8) with screw thread (12) cooperation place of screw rod (6), semi-cylindrical (8) is corresponding with screw thread (12) external diameter, has half slot (15) corresponding with the external diameter of the annular convex rib (11) at screw rod (6) two equally on slide (7).It is good that this combination chuck is made four paws.
Claims (3)
1, a kind of combination chuck, has columniform disk body [1], and be installed in parcel body [2] in the disk body [1] with one heart, one side of this parcel body [2] has bevel gear, opposite side has parcel, on disk body axis normal direction, be equipped with parcel body [2] and go up the cone pinion [3] that bevel gear is meshed, the gland [4] that withstands on the parcel body [2] is arranged below the disk body [1], the compound claw that is meshed with the parcel of parcel body [2] is housed in the radially guide groove on disk body [1] other end, this compound claw is the slide [7] that is meshed by the parcel with parcel body [2], be installed in the jaw body [5] on the slide [7], and the screw rod [6] that is installed between slide [7] and the jaw body [5] is formed, it is characterized in that screw rod [6] has annular convex rib [11], and the stage casing has screw thread [12], there is semi-circular groove [9] and the locating slot [10] that matches with annular convex rib [11] on the screw rod [6] jaw body [5] bottom surface, have above the slide [7] with screw rod [6] and go up negative thread [14] and the location lug [13] that screw thread [12] is meshed, location lug [13] matches with locating slot [10] in the jaw body [5], the length L of locating slot [10] in the jaw body [5]
1Go up the length L of location lug [13] greater than slide [7]
2
2, combination chuck as claimed in claim 1 is characterized in that the length L of locating slot (10) in the jaw body (5)
1Deduct slide (7) and go up the length L of location lug (13)
2Go up parcel tooth pitch S greater than slide (7).
3, combination chuck as claimed in claim 1 or 2 is characterized in that annular convex rib (11) at two of screw rod (6), and every is 2 rings or 3 rings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87100478 CN1012716B (en) | 1987-01-22 | 1987-01-22 | Compound chuck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87100478 CN1012716B (en) | 1987-01-22 | 1987-01-22 | Compound chuck |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN87100478A CN87100478A (en) | 1988-08-03 |
| CN1012716B true CN1012716B (en) | 1991-06-05 |
Family
ID=4812890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87100478 Expired CN1012716B (en) | 1987-01-22 | 1987-01-22 | Compound chuck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1012716B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE502006004584D1 (en) * | 2006-04-13 | 2009-10-01 | Schunk Gmbh & Co Kg | tensioning device |
| CN103801724B (en) * | 2014-03-09 | 2016-07-27 | 汪风珍 | Chuck of machine tool |
| CN104677325B (en) * | 2015-02-14 | 2017-05-17 | 浙江大学 | Measuring instrument and measuring method of complex rotating part profile |
-
1987
- 1987-01-22 CN CN 87100478 patent/CN1012716B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CN87100478A (en) | 1988-08-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C13 | Decision | ||
| GR02 | Examined patent application | ||
| 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 |