CN203712309U - Low-transmission-resistance clamp - Google Patents
Low-transmission-resistance clamp Download PDFInfo
- Publication number
- CN203712309U CN203712309U CN201420036757.1U CN201420036757U CN203712309U CN 203712309 U CN203712309 U CN 203712309U CN 201420036757 U CN201420036757 U CN 201420036757U CN 203712309 U CN203712309 U CN 203712309U
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- CN
- China
- Prior art keywords
- transmission
- claw
- helical disk
- ring
- removable cover
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Abstract
The utility model discloses a low-transmission-resistance clamp which comprises a shell, a spiral disc, a transmission rod and a transmission sleeve ring. The shell comprises a clamping claw moving cover and a bottom cover fixedly arranged at the rear end of the clamping claw moving cover, a through hole is arranged at the center of the clamping claw moving cover, at least two walking rails communicated with the through hole and penetrating through two sides of a cover face are arranged on the cover face of the clamping claw moving cover, a clamping claw is slidably arranged on each walking rail, the spiral disc is rotatably arranged in the clamping claw moving cover, a ring-shaped groove is arranged on a disc face of the spiral disc, linkage teeth in linkage fit with the ring-shaped groove of the spiral disc are arranged on the back of each clamping claw, a shaft hole slidably matched with the transmission rod is arranged on the bottom cover, the top of the transmission sleeve ring is in peripheral linkage fit with the back of the spiral disc, and a spiral groove in guide matching with a rotating guide shaft is arranged on the side wall of the transmission sleeve ring. The low-transmission-resistance clamp has the advantages of low transmission resistance, high finished product rate and adjustability.
Description
Technical field
The utility model relates to a kind of fixture, specifically refers to a kind of fixture of underneath drive resistance, is applicable to numerically controlled lathe, instrument lathe and engine lathe etc.
Background technology
Fixture is to be applied in lathe workpiece to clamp, and then processes.The structure of existing turning attachment has generally comprised claw removable cover and helical disk, claw removable cover Shang center is provided with through hole, and on the capping of this claw removable cover, be separated by 120 ° and be evenly equipped with three walking rails that are communicated with through hole, on every walking rail, slippage is provided with claw, and the back side of claw is provided with the spiral alveolar coordinating with helical disk spiral.It is by the rotation of helical disk, realize claw in walking rail in opposite directions or relative sliding, realize clamping and the unloading of workpiece.But, the Three-jaw fixture of prior art, the rotation of its claw helical disk is by being provided with round tooth on the rim at claw helical disk, and manually goes to act on the round tooth on claw helical disk by bevel gear, realizes the rotation of claw helical disk.The control mode of this transmission, labour intensity is high, clamping and unloading efficiency low, do not meet the demand for development of present Digit Control Machine Tool automation.
For this reason, inventor's earlier application 201220438213.9 1 kinds press from both sides apart from adjustable fixture, its structure arranges drive link, on the sidewall of the head end of drive link, be provided with the rotation axis of guide corresponding with claw quantity, on described helical disk, be fixedly installed the collar of joining with the head end movable sleeve of drive link, on this collar, be provided with and rotate direct bearing to adaptive helicla flute, by moving axially of drive link, drive and rotate the apply steering force of the axis of guide to the collar, rotate thereby drive with the helical disk of collar one, realize the clamping of claw and unclamp.This structure has overcome the defect of traditional fixture well, and can greatly reduce labour intensity, improves clamping and the unloading efficiency of workpiece, adapts to the automation development needs of lathe.
in addition, in order to reduce the transmission resistance of drive link to the collar, adding man-hour, must ensure that the axis of the collar and the plane at helical disk place are mutually vertical, otherwise in the time of transmission, the collar can apply to drive link the moment of torsion of clamping stagnation, make its transmission resistance very large, must could drive by mechanisms such as hydraulic jacks.But, in physical unit processing, be limited to the problem of machining accuracy, ensure the axis of the collar and the plane at helical disk place mutually vertical being actually be very difficult to accomplish, and yield rate is low, has had a strong impact on working (machining) efficiency and cost.
Summary of the invention
The purpose of this utility model is the shortcoming and defect existing in order to overcome prior art, and a kind of reasonable in design is provided, and transmission resistance is little, and production and processing is a kind of fixture of underneath drive resistance easily.
For achieving the above object, the technical solution of the utility model is to include shell and helical disk, described shell includes claw removable cover, the center of described claw removable cover is provided with through hole, and the capping of this claw removable cover is provided with at least two walking rails that are communicated with through hole and connect capping both sides, on every walking rail, slippage is provided with claw, described helical disk rotates and is arranged in claw removable cover, and be provided with annular groove in the card of this helical disk, the back side of claw is provided with the interlock tooth being linked with the annular groove of helical disk, it is characterized in that: also comprise drive link and the transmission collar, described shell also includes the bottom of the rear end that is fixedly installed on claw removable cover, on this bottom, be provided with the axis hole with drive link slippage adaptation, the head end of described drive link stretches in the axis hole of bottom, and on the sidewall of the head end of this drive link, be provided with the rotation axis of guide corresponding with claw quantity, the rear end of the relative helical disk of described claw removable cover is fixedly installed the spacing ring coordinating with helical disk axial limiting, described spacing ring center is provided with spacing annular distance, the described transmission collar rotates and is arranged in spacing annular distance, the top of this transmission collar and the back side of helical disk are circumferentially linked, and on the sidewall of the transmission collar, be provided with and rotate direct bearing to adaptive helicla flute.
By this setting, the transmission collar and helical disk split are arranged, can ensure better thus the axially mutually vertical with helical disk of the transmission collar, thereby the clamping stagnation moment of torsion in minimizing transmission process, in addition, this setting, also makes the transmission collar and helical disk machining accuracy more easily ensure, has improved yield rate.
The rear end that the inner chamber relative limit ring that is described shell is further set is provided with the positioning sleeve fixing by locking piece, in this positioning sleeve, be fixedly installed axial slip stop collar, on this axial slip stop collar, be provided with and the axis slippage slot that rotates the corresponding and axis slippage adaptation of axis of guide quantity.By this setting, utilize this positioning sleeve and axial slip stop collar to make drive link keep axial slip, and then ensured the efficiency of transmission, minimizing transmission resistance.
Further arrange is that the periphery of described spacing ring is provided with at least one spacing ring groove, the sidewall of described claw removable cover is provided with the rotation hole corresponding with spacing ring groove, in this rotation hole, rotate and be provided with adjusting knob, on described adjusting knob, be provided with bevel gear, the lower edge portion of described helical disk and the upper edge of positioning sleeve are respectively arranged with the upper circular gear ring and the lower circular gear ring that all engage with bevel gear transmission.This equipment, by the rotation of adjusting knob, makes helical disk and positioning sleeve Synchronous Transmission, thereby changes the shift motion of claw, thereby has realized the adjusting of folder distance, has easy to adjustly, and the various workpieces clamping that is suitable for different size is used.
Further arranging is to be provided with and to subtract damping ring along setting-in on the hole wall of described spacing ring relative limit annular distance, and this subtracts the upper surface of damping ring and the bottom surface of helical disk parallels and slippage support coordinates.By this setting, this subtracts damping ring and can further ensure between helical disk and the transmission collar perpendicularly, and this subtracts damping ring and can also reduce the resistance of helical rotation.
The top that further setting is the described transmission collar is provided with the first circular gear ring, and the back side of described helical disk arranges the second circular gear ring that forms circumferential transmission with the first circular gear ring.By this setting, utilize the gear ring kind of drive, realize the circumferential interlock of the transmission collar and helical disk.
Further arranging is that described claw has three, and accordingly, described walking rail also has three, and it is radial uniform to be 120 degree angles.
In sum, the utility model has the advantages that transmission resistance is little, yield rate is high, and fixture is adjustable.
Below in conjunction with specification drawings and specific embodiments, the utility model is described further.
Brief description of the drawings
Fig. 1 the utility model detailed description of the invention structural representation;
Fig. 2 the utility model detailed description of the invention STRUCTURE DECOMPOSITION Fig. 1;
Fig. 3 the utility model detailed description of the invention STRUCTURE DECOMPOSITION Fig. 2;
Fig. 4 the utility model detailed description of the invention claw stereo amplification figure.
Detailed description of the invention
Below by embodiment, the utility model is specifically described, only for the utility model is further described, can not be interpreted as the restriction to the utility model protection domain.
Detailed description of the invention of the present utility model as Figure 1-4, include shell and helical disk 3, described shell includes claw removable cover 1 and is fixedly installed on the bottom 2 of the rear end of claw removable cover 1, the two fixes the present embodiment by axial fastening bolt, the center of described claw removable cover 1 is provided with through hole 11, and the capping of this claw removable cover is provided with the walking rail 12 that is communicated with and connects capping both sides to three with through hole, on every walking rail 12, slippage is provided with claw 13, described helical disk 3 rotates and is arranged in claw removable cover 1, and in the card of this helical disk 3, be provided with annular groove 31, the back side of claw 13 is provided with the interlock tooth 131 being linked with the annular groove of helical disk, also comprise drive link 4 and the transmission collar 5, on this bottom 2, be provided with the axis hole 21 with drive link 4 slippage adaptations, the head end of described drive link 4 stretches in the axis hole 21 of bottom 2, and on the sidewall of the head end of this drive link 4, be provided with the rotation axis of guide 41 corresponding with claw quantity, the rear end of described claw removable cover 1 relative helical disk 3 is fixedly installed the spacing ring 6 coordinating with helical disk 3 axial limitings, described spacing ring center is provided with spacing annular distance 61, the described transmission collar 5 rotates and is arranged in spacing annular distance 61, the top of this transmission collar 5 is provided with the first circular gear ring 51, the back side of described helical disk 3 arranges the second circular gear ring 32 that forms circumferential transmission with the first circular gear ring 51, on the sidewall of the transmission collar 5, be provided with and rotate direct bearing to adaptive helicla flute 52.
In addition, the rear end of the inner chamber relative limit ring 6 of the shell described in the present embodiment is provided with the positioning sleeve 7 fixing by locking piece, described locking piece can adopt pin, from the sidewall of shell, be inwardly driven into the sidepiece of spacing ring 6, thereby be fixed, in this positioning sleeve 7, be fixedly installed axial slip stop collar 8, on this axial slip stop collar 8, be provided with and the axis slippage slot 81 that rotates the corresponding and axis slippage adaptation of axis of guide quantity.
In addition, the periphery of the spacing ring 6 described in the present embodiment is provided with at least one spacing ring groove 62, the sidewall of described claw removable cover 1 is provided with the rotation hole corresponding with spacing ring groove 14, the interior rotation of this rotation hole 14 is provided with adjusting knob 9, on described adjusting knob 9, be provided with bevel gear 91, the lower edge portion of described helical disk 3 and the upper edge of positioning sleeve 7 are respectively arranged with the upper circular gear ring 33 and the lower circular gear ring 71 that all engage with bevel gear 91 transmissions.
In addition, on the hole wall of the spacing ring 6 relative limit annular distances 61 described in the present embodiment, be provided with and subtract damping ring 63 along setting-in, this upper surface that subtracts damping ring 63 parallels with the bottom surface of helical disk 3 and slippage is supported and coordinated, and this subtracts damping ring 63 and can adopt becket or the selflubricatingpiston ring of surface smoothing the present embodiment.
Claims (6)
1. the fixture of a underneath drive resistance, include shell and helical disk, described shell includes claw removable cover, the center of described claw removable cover is provided with through hole, and the capping of this claw removable cover is provided with at least two walking rails that are communicated with through hole and connect capping both sides, on every walking rail, slippage is provided with claw, described helical disk rotates and is arranged in claw removable cover, and be provided with annular groove in the card of this helical disk, the back side of claw is provided with the interlock tooth being linked with the annular groove of helical disk, it is characterized in that: also comprise drive link and the transmission collar, described shell also includes the bottom of the rear end that is fixedly installed on claw removable cover, on this bottom, be provided with the axis hole with drive link slippage adaptation, the head end of described drive link stretches in the axis hole of bottom, and on the sidewall of the head end of this drive link, be provided with the rotation axis of guide corresponding with claw quantity, the rear end of the relative helical disk of described claw removable cover is fixedly installed the spacing ring coordinating with helical disk axial limiting, described spacing ring center is provided with spacing annular distance, the described transmission collar rotates and is arranged in spacing annular distance, the top of this transmission collar and the back side of helical disk are circumferentially linked, and on the sidewall of the transmission collar, be provided with and rotate direct bearing to adaptive helicla flute.
2. the fixture of a kind of underneath drive resistance according to claim 1, it is characterized in that: the rear end of the inner chamber relative limit ring of described shell is provided with the positioning sleeve fixing by locking piece, in this positioning sleeve, be fixedly installed axial slip stop collar, on this axial slip stop collar, be provided with and the axis slippage slot that rotates the corresponding and axis slippage adaptation of axis of guide quantity.
3. the fixture of a kind of underneath drive resistance according to claim 2, it is characterized in that: the periphery of described spacing ring is provided with at least one spacing ring groove, the sidewall of described claw removable cover is provided with the rotation hole corresponding with spacing ring groove, in this rotation hole, rotate and be provided with adjusting knob, on described adjusting knob, be provided with bevel gear, the lower edge portion of described helical disk and the upper edge of positioning sleeve are respectively arranged with the upper circular gear ring and the lower circular gear ring that all engage with bevel gear transmission.
4. the fixture of a kind of underneath drive resistance according to claim 3, is characterized in that: the top of the described transmission collar is provided with the first circular gear ring, and the back side of described helical disk arranges the second circular gear ring that forms circumferential transmission with the first circular gear ring.
5. the fixture of a kind of underneath drive resistance according to claim 1, it is characterized in that: on the hole wall of described spacing ring relative limit annular distance, be provided with and subtract damping ring along setting-in, this subtracts the upper surface of damping ring and the bottom surface of helical disk parallels and slippage support coordinates.
6. the fixture of a kind of underneath drive resistance according to claim 1, is characterized in that: described claw has three, and accordingly, described walking rail also has three, and it is radial uniform to be 120 degree angles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420036757.1U CN203712309U (en) | 2014-01-13 | 2014-01-13 | Low-transmission-resistance clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420036757.1U CN203712309U (en) | 2014-01-13 | 2014-01-13 | Low-transmission-resistance clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203712309U true CN203712309U (en) | 2014-07-16 |
Family
ID=51151507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420036757.1U Expired - Fee Related CN203712309U (en) | 2014-01-13 | 2014-01-13 | Low-transmission-resistance clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203712309U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105171313A (en) * | 2015-10-10 | 2015-12-23 | 常州市力源恒机械有限公司 | Electric-driving double-acting full-stroke chuck |
| CN105499895A (en) * | 2016-01-29 | 2016-04-20 | 湖北欢达电气股份有限公司 | Welding positioner |
| CN113560910A (en) * | 2021-08-09 | 2021-10-29 | 威海职业学院(威海市技术学院) | Tool rapid clamping fixture and use method thereof |
-
2014
- 2014-01-13 CN CN201420036757.1U patent/CN203712309U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105171313A (en) * | 2015-10-10 | 2015-12-23 | 常州市力源恒机械有限公司 | Electric-driving double-acting full-stroke chuck |
| CN105499895A (en) * | 2016-01-29 | 2016-04-20 | 湖北欢达电气股份有限公司 | Welding positioner |
| CN113560910A (en) * | 2021-08-09 | 2021-10-29 | 威海职业学院(威海市技术学院) | Tool rapid clamping fixture and use method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140716 Termination date: 20150113 |
|
| EXPY | Termination of patent right or utility model |