CN2691750Y - Fastening spring trijaw cartridge - Google Patents
Fastening spring trijaw cartridge Download PDFInfo
- Publication number
- CN2691750Y CN2691750Y CN 200420034325 CN200420034325U CN2691750Y CN 2691750 Y CN2691750 Y CN 2691750Y CN 200420034325 CN200420034325 CN 200420034325 CN 200420034325 U CN200420034325 U CN 200420034325U CN 2691750 Y CN2691750 Y CN 2691750Y
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- CN
- China
- Prior art keywords
- base
- spring
- internal thread
- fluted disc
- bevel gear
- 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 - Fee Related
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Abstract
The utility model provides a fastening spring trijaw cartridge, mainly comprising a spacing dish 1, a toggle bevel gear 2, an internal thread umbrella fluted disc 3, a cartridge base 4, a spring trijaw 5, a front base 6 and a movable base 7, wherein, the toggle bevel gear 2 is arranged radically on the cartridge base 4, and the internal thread umbrella fluted disc 3 is engaged with the toggle bevel gear 2. The spacing dish 1 carries out spacing to the toggle bevel gear 2 and the internal thread umbrella fluted disc 3. Its structure is characterized in that the front end of the cartridge base 4 is fixedly with the front base 6, the spring trijaw 5 and the spacing dish 1, the internal thread umbrella fluted disc 3 and the front base 6 are coaxial, the contact surface between the front end of the spring trijaw 5 and the front base 6 is a conical surface, and the back end of the spring trijaw 5 which becomes an entity is screwed with the internal thread umbrella fluted disc 3. The clamping force of the spring trijaw of the utility model is accordant and the precision of clamping is high (means end face run-out), which can attain 0.005 to 0.010 mm, so the precision of the products processed is high. The clamping is labor saving and convenient and the efficiency is high.
Description
One, technical field:
The utility model relates to a kind of lathe frock clamp, especially lathe lock ring spring scroll chuck.
Two, background technology:
Traditional lathe generally constitutes by stirring bevel gear, internal thread umbrella fluted disc, position-arresting disk, base and claw etc. with scroll chuck, be the engagement of square helical between claw and the internal thread umbrella fluted disc, stir bevel gear and drive the rotation of internal thread umbrella fluted disc, the internal thread umbrella fluted disc drives claw again and moves radially, thereby clamps or unclamp workpiece to be machined.Owing between claw and the internal thread umbrella fluted disc backlash is arranged, and the gap of three claws can not be in full accord, when clamping workpiece, following problem appears easily: (1) clamping effort, and be difficult to clamp, easily cause loose part, clamping precision (finger tip surface jitter) can only reach 0.040～0.07mm at most; (2) when clamping sleeve class thin-walled parts, can not exert oneself very much, can only gently press from both sides, not so easily that workpiece clamp is flat and scrap; (3) the cutter relieving phenomenon can occur, it is big to occur cutter relieving when promptly being worked into the big claw in gap, and it is smaller cutter relieving to occur when being worked into the little claw in gap, thereby is difficult to workpiece car circle; (4) in processing during hole workpiece, iron cuts that easily to creep into chuck stuck with chuck, particularly the secondary clamping is difficult for setting upright.
Three, summary of the invention:
The purpose of this utility model provides a kind of lock ring spring scroll chuck, solve existing lathe and tightly do not cause loose part with the easy clamping of scroll chuck, or easily thin-wall workpiece is pressed from both sides flatly because of clamping strength is inconsistent, and the gap of claw and workpiece is inconsistent and be prone to problems such as cutter relieving phenomenon.
The technical solution of the utility model is: it comprises position-arresting disk, stirs bevel gear, internal thread umbrella fluted disc and chuck base, wherein stirring bevel gear radially is arranged on the chuck base, the internal thread umbrella fluted disc with stir bevel gear engagement, position-arresting disk is to stirring bevel gear and the internal thread umbrella fluted disc carries out spacing, its architectural feature is: the front end of chuck base is fixed with preceding base, the spring three-jaw is coaxial with position-arresting disk, internal thread umbrella fluted disc and preceding base, the front end of spring three-jaw is that the conical surface contacts with preceding base, and the rear end of spring three-jaw is integral and is threaded with the internal thread umbrella fluted disc.
The front end of chuck base is fixed with preceding base in the utility model, and spring three-jaw and position-arresting disk, internal thread umbrella fluted disc and the preceding coaxial setting of base, when stirring bevel gear with the spanner rotation, stir bevel gear and drive the internal thread umbrella fluted disc rotation that is engaged with, the rear end that the internal thread umbrella fluted disc drives the spring three-jaw again moves forward and backward, the middle part of spring three-jaw is more elongated, therefore has certain elasticity, and the front end of spring three-jaw is that the conical surface contacts with preceding base, so front end effect lower edge at preceding base inner cone when moving forward and backward of spring three-jaw moves radially, thereby realize clamping synchronously or unclamping workpiece to be machined.
The utility model has the advantages that: the clamping strength unanimity of spring three-jaw, clamping precision height (finger tip surface jitter) can reach 0.005～0.010mm, therefore the product precision height that processes; And clamping is laborsaving, convenience, the efficient height.
Four, description of drawings:
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is that the A of Fig. 1 is to view;
Fig. 3 is the B-B cutaway view of Fig. 2;
Fig. 4 is a perspective exploded view of the present utility model.
Five, the specific embodiment:
As shown in Figures 1 to 4, the utility model is by position-arresting disk 1, stir bevel gear 2, internal thread umbrella fluted disc 3, chuck base 4, spring three-jaw 5, preceding base 6 and mobile base 7 are formed, wherein stirring bevel gear 2 radially is arranged on the chuck base 4, internal thread umbrella fluted disc 3 with stir bevel gear 2 engagements, 1 pair of position-arresting disk stirs bevel gear 2 and internal thread umbrella fluted disc 3 carries out spacing, its architectural feature is: the front end of chuck base 4 is fixed with preceding base 6, spring three-jaw 5 and position-arresting disk 1, internal thread umbrella fluted disc 3 and preceding base 6 are coaxial, the front end of spring three-jaw 5 and preceding base 6 are for the conical surface contacts, and the rear end of spring three-jaw 5 is integral and is threaded with internal thread umbrella fluted disc 3.
Can find out from Fig. 1, Fig. 3 and Fig. 4: on the preceding base 6 in spring three-jaw 5 be fixed with mobile base 7 in twos between the claw, the internal orifice dimension that mobile base 7 forms is littler than the internal orifice dimension of spring three-jaw 5.
Can find out from Fig. 2, Fig. 3: the larger diameter end of position-arresting disk 1 is installed on by in the ring groove that forms between chuck base 4 and the preceding base 68, smaller diameter end leans on the end face of internal thread umbrella fluted disc 3, stir bevel gear 2 and pass chuck base 4, its inner end is stretched in the radial hole 9 of position-arresting disk 1.
Operation principle: when workpiece of needs processing, the clamping end of workpiece is stretched in the endoporus of spring three-jaw 5 and lean on mobile base 7 end faces, stir bevel gear 2 with the spanner rotation, stir bevel gear 2 and drive internal thread umbrella fluted disc 3 rotations that are engaged with, internal thread umbrella fluted disc 3 drives the rear end of spring three-jaw 5 again and moves backward, the front end of spring three-jaw 5 radially moves under the effect of preceding base 6 inner cones when moving backward inwards, thereby workpiece clamp is strained at flat.
To revise the aperture dimension of spring three-jaw 5 and mobile base 7 according to the size of workpiece to be machined in the utility model, mobile base 7 can change, select the mobile base 7 of different-thickness for use according to the length of workpiece, concerning same spring three-jaw 5 and mobile base 7, clamped workpiece outside dimension size variation scope can not surpass 1mm, therefore is adapted to produce in enormous quantities.The size of processing work manufactures the spring three-jaw 5 and the mobile base 7 of the size that adapts as required.
Claims (3)
1. lock ring spring scroll chuck, comprise position-arresting disk (1), stir bevel gear (2), internal thread umbrella fluted disc (3) and chuck base (4), wherein stirring bevel gear (2) radially is arranged on the chuck base (4), internal thread umbrella fluted disc (3) with stir bevel gear (2) engagement, position-arresting disk (1) is to stirring bevel gear (2) and internal thread umbrella fluted disc (3) carries out spacing, it is characterized in that: the front end of chuck base (4) is fixed with preceding base (6), spring three-jaw (5) and position-arresting disk (1), internal thread umbrella fluted disc (3) and preceding base (6) are coaxial, the front end of spring three-jaw (5) and preceding base (6) are for the conical surface contacts, and the rear end of spring three-jaw (5) is integral and is threaded with internal thread umbrella fluted disc (3).
2. lock ring spring scroll chuck according to claim 1, it is characterized in that: before described base (6) go up in spring three-jaw (5) be fixed with mobile base (7) in twos between the claw, the internal orifice dimension that mobile base (7) forms is littler than the internal orifice dimension of spring three-jaw (5).
3. lock ring spring scroll chuck according to claim 1, it is characterized in that: the larger diameter end of position-arresting disk (1) is installed on by in the ring groove (8) that forms between chuck base (4) and the preceding base (6), smaller diameter end leans on the end face of internal thread umbrella fluted disc (3), stir bevel gear (2) and pass chuck base (4), its inner end is stretched in the radial hole (9) of position-arresting disk (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420034325 CN2691750Y (en) | 2004-04-12 | 2004-04-12 | Fastening spring trijaw cartridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420034325 CN2691750Y (en) | 2004-04-12 | 2004-04-12 | Fastening spring trijaw cartridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2691750Y true CN2691750Y (en) | 2005-04-13 |
Family
ID=34772961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420034325 Expired - Fee Related CN2691750Y (en) | 2004-04-12 | 2004-04-12 | Fastening spring trijaw cartridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2691750Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104190974A (en) * | 2014-09-19 | 2014-12-10 | 浙江德清龙立红旗制药机械有限公司 | Numerical-control machine workpiece limit mechanism |
| CN105983714A (en) * | 2015-02-06 | 2016-10-05 | 湖北韵生航天科技有限公司 | Precise machine tool centering cylinder chuck |
| CN111890103A (en) * | 2020-07-27 | 2020-11-06 | 台州一鼎数控机床有限公司 | Numerical control machine tool with material guide channel |
-
2004
- 2004-04-12 CN CN 200420034325 patent/CN2691750Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104190974A (en) * | 2014-09-19 | 2014-12-10 | 浙江德清龙立红旗制药机械有限公司 | Numerical-control machine workpiece limit mechanism |
| CN105983714A (en) * | 2015-02-06 | 2016-10-05 | 湖北韵生航天科技有限公司 | Precise machine tool centering cylinder chuck |
| CN111890103A (en) * | 2020-07-27 | 2020-11-06 | 台州一鼎数控机床有限公司 | Numerical control machine tool with material guide channel |
| CN111890103B (en) * | 2020-07-27 | 2021-08-17 | 台州一鼎数控机床有限公司 | Numerical control machine tool with material guide channel |
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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 |