CN201483261U - Self-aligning combined fixture - Google Patents
Self-aligning combined fixture Download PDFInfo
- Publication number
- CN201483261U CN201483261U CN2009201899743U CN200920189974U CN201483261U CN 201483261 U CN201483261 U CN 201483261U CN 2009201899743 U CN2009201899743 U CN 2009201899743U CN 200920189974 U CN200920189974 U CN 200920189974U CN 201483261 U CN201483261 U CN 201483261U
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- China
- Prior art keywords
- aligning
- chuck
- radially
- automatic aligning
- retaining mechanism
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- Expired - Lifetime
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Abstract
The utility model discloses a self-aligning combined fixture comprising a rear positioning shaft (1) and a positioning cylinder (2), wherein the rear positioning shaft (1) is installed in the rear part of a hollow machine tool spindle (3); the positioning cylinder (2 ) is installed on a machine tool guide rail; the self-aligning combined fixture also comprises an external clamping self-aligning chuck mechanism which comprises a chuck body, a cylinder component, an aligning mechanism and a locking mechanism; the chuck body is installed at the front end of the hollow machine tool spindle (3); the cylinder component, the aligning mechanism and the locking mechanism are installed in the chuck body; the aligning mechanism leads the locking mechanism to be radially and movably connected on the chuck body; and the locking mechanism is externally sleeved with the cylinder component which can drive the locking mechanism to radially and tightly hold the workpieces to be processed when doing axial backward movement. The self-aligning combined fixture does not need to manually adjust the concentricity of the inner bore of a steel pipe, and can improve the production efficiency, ensure product quality and realize batch production.
Description
Technical field
The utility model relates to a kind of anchor clamps, relates to automatic aligning combined clamp or rather.
Background technology
Low-alloy seamless steel pipe by multistage finish rolling has been widely applied to hydraulic pressure, pneumatic cylinder barrel etc. and has required in the inner chamber precision high product, the cylinder barrel that adopts this technology to make, usually do not carry out the machinability preliminary working inside and outside its blank, machining benchmark is as the criterion with the rolling original forming face of blank, and this cylinder barrel has the intensity height, certain cold working extensibility is arranged, solderability is good, production efficiency is high and characteristics such as low cost of manufacture.But when making moulding owing to the finish rolling steel pipe, have Concentricity tolerance in various degree between inner and outer diameter, particularly along with the increase of body wall thickness, error can be bigger, can reach about 2mm when serious.When steel pipe uses as oil cylinder, need rounded ends in the processing, forming the seal and the basal groove of cylinder barrel, and the steel duct end adds and must adjust concentricity man-hour.Prior art is to carry out interior benchmark concentricity adjustment under the outer clamping by lathe conventional anchor clamps going along with, but this kind prior art is by using the dial gauge manual measurement to adjust the steel tube inner hole concentricity, make production efficiency low, and manually adjustment has certain error, thereby the quality that makes product is difficult for guaranteeing, also makes product be difficult for dropping into effectively simultaneously and produces in batches.
The utility model content
The technical problems to be solved in the utility model is to provide a kind of and need not manually to adjust the steel tube inner hole concentricity, and can enhance productivity, assurance product quality, the automatic aligning combined clamp that can manufacture again simultaneously.
Technical solution of the present utility model is, a kind of automatic aligning combined clamp with following structure is provided, it comprises back locating shaft and positioning cylinder, described back locating shaft is installed in the rear portion of lathe hollow spindle, described positioning cylinder is installed on the machine tool guideway, it also comprises outer clamping automatic aligning chuck mechanism, described outer clamping automatic aligning chuck mechanism comprises chuck body, cylinder assembly, core-regulating mechanism and retaining mechanism, described chuck body is installed in the front end of described lathe hollow spindle, described cylinder assembly, core-regulating mechanism and retaining mechanism are installed in the described chuck body, described core-regulating mechanism radially is movably connected in described retaining mechanism on the described chuck body, and described retaining mechanism is with outward when it is axially mobile backward can drive the cylinder assembly that retaining mechanism is radially held work piece tightly.
After adopting above structure, the utility model automatic aligning combined clamp compared with prior art has the following advantages:
Because the utility model automatic aligning combined clamp also comprises outer clamping automatic aligning chuck mechanism, therefore can carry out automatic aligning to the cylinder barrel workpiece of a certain amount of nonconcentricity, improve production efficiency of products, also guarantee product quality simultaneously, make product can drop into effective batch process.Described outer clamping automatic aligning chuck mechanism comprises chuck body, cylinder assembly, core-regulating mechanism and retaining mechanism, described chuck body is installed in the front end of described machine tool chief axis, described cylinder assembly, core-regulating mechanism and retaining mechanism are installed in the described chuck body, described core-regulating mechanism radially is movably connected in described retaining mechanism on the described chuck body, and described retaining mechanism is with outward when it is axially mobile backward can drive the cylinder assembly that retaining mechanism is radially held work piece tightly.During work, the non-processing end of work piece that will have an a certain amount of nonconcentricity is contained on the back locating shaft in the lathe hollow spindle rear portion, start positioning cylinder, allow the positioning head of positioning cylinder in axial direction stretch into the processing end endoporus of work piece, form benchmark location in the work piece, cylinder assembly air feed in chuck body then, cylinder assembly just can drive retaining mechanism and axially move backward, core-regulating mechanism radially moves about automatically and carries out the benchmark aligning simultaneously, after cylinder assembly moves to certain distance, the work piece outer surface of benchmark location in retaining mechanism just can be held tightly; After retaining mechanism is held work piece tightly, loosen and remove positioning cylinder, realized the outer clamping of automatic aligning of endoporus, can carry out the processing of work piece endoporus; Because retaining mechanism is to lock work piece under the pressure of cylinder assembly, has guaranteed that anchor clamps have enough lock power and carry out machining; After the process finishing, cylinder assembly unclamps the pressure to retaining mechanism, and retaining mechanism just unclamps the lock power to work piece subsequently, takes out work piece, finishes the processing of work piece endoporus.
As a kind of improvement of the present utility model, described chuck body comprises chuck seat and chuck; Described chuck seat is that circle ring disk and socket two parts in aggregates are formed, and described circle ring disk partial fixing is on the front end face of lathe hollow spindle, and chuck is fixed on the described circle ring disk.Described cylinder assembly comprises cylinder barrel and the sliding fit hollow piston in cylinder barrel; Described hollow piston inwall front end extends to form limiting section forward, and its end is provided with radial convex loop.Because described hollow piston inwall front end extends to form limiting section forward, its end is provided with radial convex loop, and radial convex loop carries out axial limiting to retaining mechanism, is used for hollow piston and drives retaining mechanism when axially mobile backward.
As another kind of improvement the of the present utility model, described core-regulating mechanism is meant the aligning alignment pin, and described aligning alignment pin has a plurality of, and these a plurality of aligning alignment pins are fixed on the front end face of socket of described chuck seat symmetrically and evenly.Described retaining mechanism comprises locking bed and locking tapered sleeve; Described locking bed is formed by fixedly connecting by tubular connector and conical shell, described tubular connector is provided with and the corresponding U-shaped of described aligning alignment pin slotted eye radially, and described conical shell is provided with a plurality of radial slots that extend axially and run through the conical shell barrel; Described locking cone is arranged with the inner conical face that the male-tapered periphery of shape and described conical shell matches, and the front end of described locking tapered sleeve is provided with the radial depressions ring that the bulge loop shape of the limiting section of shape and described hollow piston matches.Because this kind structure, described aligning alignment pin is installed in U-shaped on the described locking bed tubular connector radially in the slotted eye, described aligning alignment pin and described U-shaped radially leave between the hole wall of slotted eye for the radially movable gap of locking bed, and described locking toilet can radially be movably connected on the circle ring disk of described chuck seat; Because described conical shell is provided with a plurality of radial slots that run through the conical shell barrel, described locking cone cover is placed in outside the described locking bed, the inner conical face of described locking tapered sleeve is affixed on the male-tapered face of described locking bed, the hollow piston of described cylinder assembly is placed in outside the described locking tapered sleeve, the radial convex loop of the limiting section of described hollow piston is installed in the radial depressions ring of described locking tapered sleeve front end, hollow piston axially moves drive locking cone cover backward and axially moves backward, just give locking bed conical shell downward pressure, so conical shell just can radially be held work piece tightly.
Also have a kind of improvement as of the present utility model, described aligning alignment pin has four, is preferred version.
Also have a kind of improvement as of the present utility model, the conical shell of described locking bed is provided with eight radial slots, is preferred version.
Also have a kind of improvement as of the present utility model, be provided with lining between described work piece and the described locking bed.Described lining can prevent that work piece and locking bed surface from being scratched.
Description of drawings
Fig. 1 is the sectional structure schematic diagram of the utility model automatic aligning combined clamp.
Fig. 2 is the design of part schematic diagram of chuck seat 4 in the utility model automatic aligning combined clamp.
Fig. 3 is the design of part schematic diagram of hollow piston 7 in the utility model automatic aligning combined clamp.
Fig. 4 is the design of part schematic diagram of locking tapered sleeve 10 in the utility model automatic aligning combined clamp.
Fig. 5 is the main TV structure schematic diagram of locking bed 9 in the utility model automatic aligning combined clamp.
Fig. 6 is the right TV structure schematic diagram of locking bed 9 in the utility model automatic aligning combined clamp.
Fig. 7 is the backsight structural representation of locking bed 9 in the utility model automatic aligning combined clamp.
Sectional structure schematic diagram when Fig. 8 is the utility model automatic aligning combined clamp machining.
As shown in the figure: 1, back locating shaft, 2, positioning cylinder, 3, hollow spindle, 4, chuck seat, 4.1, circle ring disk, 4.2, socket, 5, chuck, 5.1, the air inlet rotary sleeve, 6, cylinder barrel, 7, hollow piston, 7.1, limiting section, 7.1.1, bulge loop, 8, aligning alignment pin, 9, locking bed, 9.1, the tubular connector, 9.1.1, U-shaped be slotted eye radially, 9.2, conical shell, 9.2.1, radial slot, 10, the locking tapered sleeve, 10.1, depression ring, 11, lining, 12, knife rest, 13, lathe tool, 14, steel pipe.
The specific embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
See also shown in Figure 1ly, the utility model automatic aligning combined clamp is made up of interior centring means and outer clamping automatic aligning chuck mechanism, comprises afterwards locating shaft 1 and positioning cylinder 2 in the described interior centring means.Described outer clamping automatic aligning chuck mechanism comprises chuck body, cylinder assembly, core-regulating mechanism and retaining mechanism.
In interior centring means, described back locating shaft 1 is installed in the rear portion of lathe hollow spindle 3, and the head of described back locating shaft 1 is tapered, and the diameter of axle and work piece endoporus fit clearance are 0.04～0.07mm.Positioning head is equipped with in the end of described positioning cylinder 2, and described positioning head is designed to taper, and described positioning cylinder 2 is installed on the planker of machine tool guideway, and an adjustment and a stationary positioned center are consistent with the center of lathe hollow spindle 3 during installation.
Outside described in the clamping automatic aligning chuck mechanism, described chuck body comprises chuck seat 4 and chuck 5, described chuck 5 is provided with air inlet rotary sleeve 5.1, described chuck seat 4 is that circle ring disk 4.1 and socket 4.2 two parts in aggregates are formed, described circle ring disk 4.1 partial fixings are on the front end face of lathe hollow spindle 3, and chuck 5 is fixed on the described circle ring disk 4.1.Described cylinder assembly comprises cylinder barrel 6 and the sliding fit hollow piston 7 in cylinder barrel, and the inwall front end of described hollow piston 7 extends to form limiting section 7.1 forward, and described limiting section 7.1 ends are provided with radial convex loop 7.1.1.Described core-regulating mechanism is meant aligning alignment pin 8, and described aligning alignment pin 8 has a plurality of, and the aligning alignment pin 8 described in this specific embodiment has four, and these four aligning alignment pins 8 are fixed on the front end face of socket 4.2 of described chuck seat 4 symmetrically.Described retaining mechanism comprises locking bed 9, locking tapered sleeve 10 and lining 11, described locking bed 9 is formed by fixedly connecting by tubular connector 9.1 and conical shell 9.2, described tubular connector 9.1 is provided with and described aligning alignment pin 8 corresponding U-shapeds slotted eye 9.1.1 radially, described conical shell 9.2 is provided with a plurality of radial slot 9.2.1 that extend axially and run through conical shell 9.2 barrels, and the radial slot 9.2.1 described in this specific embodiment has eight; Described locking tapered sleeve 10 is provided with the inner conical face that the male-tapered periphery of shape and described conical shell 9.2 matches, and the front end of described locking tapered sleeve 10 is provided with the radial depressions ring 10.1 that the bulge loop shape of the limiting section 7.1 of shape and described hollow piston 7 matches; Described lining 11 places between described workpiece and the described locking bed 9.
Described aligning alignment pin 8 is installed in U-shaped on the described locking bed 9 tubular connectors 9.1 radially in the slotted eye 9.1.1, and described aligning alignment pin 8 and described U-shaped radially leave for the radially movable gap of locking bed (9) between the hole wall of slotted eye 9.1.1.Described locking tapered sleeve 10 is placed in outside the described locking bed 9, and the inner conical face of described locking tapered sleeve 10 is affixed on the male-tapered face of described locking bed 9.Hollow piston 7 in the described cylinder assembly is placed in outside the described locking tapered sleeve 10, and the radial convex loop of the limiting section 7.1 of described hollow piston 7 is installed in the radial depressions ring 10.1 of described locking tapered sleeve 10.Described chuck 5 is installed in outside the cylinder barrel 6 of described cylinder assembly, and its air inlet rotary sleeve 5.1 is aimed at the air admission hole of cylinder barrel 6.
During work, at first, the non-processing end that has eccentric steel pipe 14 work pieces between the interior external diameter is inserted on the back locating shaft 1 of automatic aligning combined clamp, between copper pipe 14 and locking bed 9, insert lining 11, the positioning head of the positioning cylinder 2 of modulated good center reference is pressed in the steel pipe 14 processing end endoporus, steel pipe 14 is implemented the endoporus location, form machining benchmark; Then, cylinder barrel 6 air feed in the cylinder assembly of outside clamping automatic aligning chuck mechanism, hollow piston 7 just axially moves backward, driving locking tapered sleeve 10 simultaneously axially moves, by the effect of the conical surface, when locking bed 9 in the time axially can not being shifted, radially radially move about in the gap of slotted eye 9.1.1 by U-shaped, locking bed 9 is held work piece steel pipe 14 outer surfaces gradually tightly simultaneously, until locking; At last, unclamp positioning cylinder 2, work piece shifts near knife rest 12 by outside fix at this moment, and lathe tool 13 can be processed work piece.
Claims (10)
1. automatic aligning combined clamp, it comprises back locating shaft (1) and positioning cylinder (2), described back locating shaft (1) is installed in the rear portion of lathe hollow spindle (3), described positioning cylinder (2) is installed on the machine tool guideway, it is characterized in that: it also comprises outer clamping automatic aligning chuck mechanism, described outer clamping automatic aligning chuck mechanism comprises chuck body, cylinder assembly, core-regulating mechanism and retaining mechanism, described chuck body is installed in the front end of described lathe hollow spindle (3), described cylinder assembly, core-regulating mechanism and retaining mechanism are installed in the described chuck body, described core-regulating mechanism radially is movably connected in described retaining mechanism on the described chuck body, and described retaining mechanism is with outward when it is axially mobile backward can drive the cylinder assembly that retaining mechanism is radially held work piece tightly.
2. automatic aligning combined clamp according to claim 1 is characterized in that: described chuck body comprises chuck seat (4) and chuck (5); Described chuck seat (4) is that circle ring disk (4.1) and socket (4.2) two parts in aggregates are formed, and described circle ring disk (4.1) partial fixing is on the front end face of lathe hollow spindle (3), and chuck (5) is fixed on the described circle ring disk (4.1).
3. automatic aligning combined clamp according to claim 2 is characterized in that: described cylinder assembly comprises cylinder barrel (6) and the sliding fit hollow piston (7) in cylinder barrel (6); Described hollow piston (7) inwall front end extends to form limiting section (7.1) forward, and its end is provided with radial convex loop (7.1.1).
4. automatic aligning combined clamp according to claim 3, it is characterized in that: described core-regulating mechanism is meant aligning alignment pin (8), described aligning alignment pin (8) has a plurality of, and these a plurality of aligning alignment pins (8) are fixed on the front end face of socket (4.2) of described chuck seat (4) symmetrically.
5. automatic aligning combined clamp according to claim 4 is characterized in that: described retaining mechanism comprises locking bed (9) and locking tapered sleeve (10); Described locking bed (9) is formed by fixedly connecting by tubular connector (9.1) and conical shell (9.2), described tubular connector (9.1) is provided with and the corresponding U-shaped of described aligning alignment pin (8) slotted eye (9.1.1) radially, and described conical shell (9.2) is provided with a plurality of radial slots (9.2.1) that extend axially and run through conical shell (9.2) barrel; Described locking tapered sleeve (10) is provided with the inner conical face that the male-tapered periphery of shape and described conical shell (9.2) matches, and the front end of described locking tapered sleeve (10) is provided with the radial depressions ring (10.1) that bulge loop (7.1.1) shape of the limiting section (7.1) of shape and described hollow piston (7) matches.
6. automatic aligning combined clamp according to claim 5, it is characterized in that: described core-regulating mechanism radially is movably connected in described retaining mechanism on the described chuck body and is meant, described aligning alignment pin (8) is installed in U-shaped on described locking bed (9) the tubular connector (9.1) radially in the slotted eye (9.1.1), and described aligning alignment pin (8) and described U-shaped radially leave for the radially movable gap of locking bed (9) between the hole wall of slotted eye (9.1.1).
7. automatic aligning combined clamp according to claim 6, it is characterized in that: described retaining mechanism is with outward and can drives retaining mechanism radially hold the cylinder assembly of work piece tightly and be meant when it is axially mobile backward, described locking tapered sleeve (10) is placed in outside the described locking bed (9), the inner conical face of described locking tapered sleeve (10) is affixed on the male-tapered face of described locking bed (9), the hollow piston of described cylinder assembly (7) is placed in outside the described locking tapered sleeve (10), and the radial convex loop (7.1.1) of the limiting section (7.1) of described hollow piston (7) is installed in the radial depressions ring (10.1) of described locking tapered sleeve (10) front end.
8. automatic aligning combined clamp according to claim 4 is characterized in that: described aligning alignment pin (8) has four.
9. automatic aligning combined clamp according to claim 5 is characterized in that: the conical shell (9.2) of described locking bed (9) is provided with eight radial slots (9.2.1).
10. automatic aligning combined clamp according to claim 5 is characterized in that: be provided with lining (11) between described work piece and the described locking bed (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201899743U CN201483261U (en) | 2009-07-28 | 2009-07-28 | Self-aligning combined fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201899743U CN201483261U (en) | 2009-07-28 | 2009-07-28 | Self-aligning combined fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201483261U true CN201483261U (en) | 2010-05-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201899743U Expired - Lifetime CN201483261U (en) | 2009-07-28 | 2009-07-28 | Self-aligning combined fixture |
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| CN (1) | CN201483261U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102294620A (en) * | 2010-06-22 | 2011-12-28 | 鸿富锦精密工业（深圳）有限公司 | Concentricity adjusting device |
| CN101623830B (en) * | 2009-07-28 | 2012-06-13 | 宁波市鄞州中天阀门有限公司 | Automatic aligning combined clamp |
| CN107414659A (en) * | 2017-09-01 | 2017-12-01 | 宁波锴立精密轴承有限公司 | A kind of bearing inner wall polishing processing unit (plant) |
| CN107695713A (en) * | 2017-06-30 | 2018-02-16 | 郭丹枫 | A kind of novel steel tube processing unit (plant) |
| CN107695712A (en) * | 2017-06-30 | 2018-02-16 | 郭丹枫 | One kind improves shape steel tube processing unit (plant) |
| CN107695711A (en) * | 2017-06-30 | 2018-02-16 | 郭丹枫 | A kind of efficient steel pipe processing unit (plant) |
| CN114433892A (en) * | 2022-02-14 | 2022-05-06 | 沅亨流体科技（昆山）有限公司 | Lathe fixture capable of automatically switching machined surfaces of workpieces |
-
2009
- 2009-07-28 CN CN2009201899743U patent/CN201483261U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101623830B (en) * | 2009-07-28 | 2012-06-13 | 宁波市鄞州中天阀门有限公司 | Automatic aligning combined clamp |
| CN102294620A (en) * | 2010-06-22 | 2011-12-28 | 鸿富锦精密工业（深圳）有限公司 | Concentricity adjusting device |
| CN107695713A (en) * | 2017-06-30 | 2018-02-16 | 郭丹枫 | A kind of novel steel tube processing unit (plant) |
| CN107695712A (en) * | 2017-06-30 | 2018-02-16 | 郭丹枫 | One kind improves shape steel tube processing unit (plant) |
| CN107695711A (en) * | 2017-06-30 | 2018-02-16 | 郭丹枫 | A kind of efficient steel pipe processing unit (plant) |
| CN107414659A (en) * | 2017-09-01 | 2017-12-01 | 宁波锴立精密轴承有限公司 | A kind of bearing inner wall polishing processing unit (plant) |
| CN114433892A (en) * | 2022-02-14 | 2022-05-06 | 沅亨流体科技（昆山）有限公司 | Lathe fixture capable of automatically switching machined surfaces of workpieces |
| CN114433892B (en) * | 2022-02-14 | 2024-01-30 | 沅亨流体科技（昆山）有限公司 | Lathe fixture capable of automatically switching machined surface of workpiece |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100526 Effective date of abandoning: 20090728 |