CN204843845U - Tight driving mechanism of screw clamp - Google Patents

Tight driving mechanism of screw clamp Download PDF

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Publication number
CN204843845U
CN204843845U CN201520411156.9U CN201520411156U CN204843845U CN 204843845 U CN204843845 U CN 204843845U CN 201520411156 U CN201520411156 U CN 201520411156U CN 204843845 U CN204843845 U CN 204843845U
Authority
CN
China
Prior art keywords
rotary
clamping plate
spring
sleeve
pinch
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
Application number
CN201520411156.9U
Other languages
Chinese (zh)
Inventor
高思帅
黄建勋
陈琪
其他发明人请求不公开姓名
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZHEJIANG JACK MACHINE MANUFACTURING Co Ltd
Original Assignee
ZHEJIANG JACK MACHINE MANUFACTURING Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ZHEJIANG JACK MACHINE MANUFACTURING Co Ltd filed Critical ZHEJIANG JACK MACHINE MANUFACTURING Co Ltd
Priority to CN201520411156.9U priority Critical patent/CN204843845U/en
Application granted granted Critical
Publication of CN204843845U publication Critical patent/CN204843845U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model belongs to the technical field of the lathe accessory, refer in particular to a tight driving mechanism of screw clamp, including outer dish with set up the interior carousel in the middle part of outer dish, the equipartition has a plurality of poker rod on the interior carousel, the order cover is equipped with spring and sleeve on the poker rod, and the one end of spring is supported at the sleeve downside, carousel surface including the other end of spring supports, sleeve middle part cover is equipped with pinch -off blades, pinch -off blades the inner is provided with locking threads portion, and the outer end of pinch -off blades is provided with the card hole, and the locating lever passes card hole and fixed the setting in the end cover on outer dish upper portion, when interior carousel rotated, pinch -off blades used the poker rod to deflect as the center, work in coordination chucking or unclamp the work piece of the inner locking threads portion of a plurality of pinch -off blades. The utility model discloses a cooperation of spring and locking threads portion, when locking threads portion centre gripping is not in place or when the deviation appearing, the spring can give an automatic compensation's of pinch -off blades mechanism, promptly, pinch -off blades and sleeve can reciprocate on the locating lever slightly in the proper motion.

Description

The tight lead agency of a kind of screw clamp
Technical field
The utility model belongs to machine tool accessory technical field, refers in particular to the tight lead agency of a kind of screw clamp.
Background technology
In cylindrical grinder process, generally all need clamping lead agency to drive Workpiece clamping and just can carry out the actions such as grinding.
The a earlier application ZL201420275969.5 of applicant discloses a kind of automatic clamping mechanism, by the tail end of cylinder action in clamp, clamp Compress Spring, and act on a side of breach, turning set is driven to rotate around the axis of base, the head being positioned at the clamping head of mesopore staggers, the space that head workpiece to be machined being put into clamping head surrounds, cylinder cancellation effect, under the action of the spring, clamp resets, and clamping head resets together along with clamp, the head of clamping head is arranged towards the center of mesopore, clamping workpiece to be machined; When unclamping workpiece to be machined, by cylinder action, it is high that it has automaticity, and convenient mounting and clamping greatly reduces human cost, improves the advantages such as operating efficiency.
Such as, but in actual use, applicant finds its slightly weak point, specific as follows: when workpiece end is comparatively special, when workpiece end is the screw thread processed, common chuck easily damages its screw thread; In addition, the clamp structure design Shortcomings of existing chuck.
Utility model content
It is simple that the purpose of this utility model is to provide a kind of structure, safe and reliable, can adapt to the tight lead agency of screw clamp of all types of workpiece.
The purpose of this utility model is achieved in that
The tight lead agency of a kind of screw clamp, comprise outer disk and be arranged on the inner rotary table in the middle part of outer disk, inner rotary table is evenly equipped with several poke rods, on described poke rod, order is set with spring and sleeve, one end of spring is against on the downside of sleeve, and the other end of spring is against inner rotary table surface; Clamping plate is set with in the middle part of described sleeve; Described clamping plate the inner is provided with locking screw portion, and the outer end of clamping plate is provided with hole clipping, and backstay passes described hole clipping and is fixedly installed on the end cap on outer disk top; When described inner rotary table rotates, clamping plate deflects centered by poke rod, and the locking screw portion of several clamping plate the inners works in coordination and clamps or unclamp workpiece.
Described hole clipping is U-shaped draw-in groove or bar hole, and the shaft of backstay is through U-shaped draw-in groove or bar hole, the cap portion diameter >U type draw-in groove of backstay and the width of bar hole.
The downside of described clamping plate is fixedly installed baffle plate, and the front end of baffle plate is stretched out clamping plate and supported workpiece to be clamped.
The downside of described outer disk is provided with base, and the middle part of base and inner rotary table is provided with through hole, and a push rod stretches in described base and inner rotary table also can hold out against workpiece to be clamped.
The lower rotational of described inner rotary table is arranged on fixed disk, and fixed disk is arranged on base.
The downside of described base is provided with pull-fork assembly, pull-fork assembly comprises shift fork and latch, and latch is connected with inner rotary table with the through hole on fixed disk through base.
The shift fork of described pull-fork assembly is provided with U-shaped caulking groove.
The utility model gives prominence to compared to existing technology and useful technique effect is:
1, spring of the present utility model and locking screw portion coordinate, and when the clamping of locking screw portion is not in place or when there is deviation, spring can give the mechanism of a clamping plate auto-compensation, that is, clamping plate and sleeve can move up and down on the securing lever voluntarily slightly;
2, when the design of baffle plate of the present utility model makes workpiece clamp, can there be a location its workpiece the inner, makes machining accuracy better;
3, backstay of the present utility model and poke rod coordinate and can locate clamping plate preferably, guarantee that clamping plate can not be shifted, guarantee that clamping plate is deflect centered by poke rod all the time, improve the cooperation accuracy between each clamping plate.
Accompanying drawing explanation
Fig. 1 is exploded view of the present utility model.
Fig. 2 is one of stereogram of the present utility model.
Fig. 3 is stereogram two of the present utility model.
In figure: 1-top cover; 2-outer disk; 3-backstay; 4-sleeve; 5-clamping plate; 6-spring; 7-baffle plate; 8-poke rod; 9-inner rotary table; 10-fixed disk; 11-base; 12-latch; 13-shift fork; 14-guide pin bushing; 15-thimble; 16-locking screw portion; 17-U type draw-in groove; 18-cap portion; 19-U type caulking groove; The front end of 20-baffle plate.
Detailed description of the invention
The utility model is further described with specific embodiment below in conjunction with accompanying drawing:
The tight lead agency of a kind of screw clamp, the inner rotary table 9 comprising outer disk 2 and be arranged in the middle part of outer disk 2, inner rotary table 9 is evenly equipped with several poke rods 8, and on described poke rod 8, order is set with spring 6 and sleeve 4, one end of spring 6 is against on the downside of sleeve 4, and the other end of spring 6 is against inner rotary table 9 surface; Clamping plate 5 is set with in the middle part of described sleeve 4; Described clamping plate 5 the inner is provided with locking screw portion 16, and the outer end of clamping plate 5 is provided with hole clipping, and backstay 3 passes described hole clipping and is fixedly installed on the end cap 1 on outer disk 2 top; When described inner rotary table 9 rotates, clamping plate 5 deflects centered by poke rod 8, and the locking screw portion 16 of several clamping plate 5 the inners works in coordination and clamps or unclamp workpiece.When the clamping of locking screw portion is not in place or when there is deviation, spring can give the mechanism of a clamping plate auto-compensation.The effect of locking screw portion holding workpiece is better than traditional design, more reliably, is also applicable to clamping one end and arranges threaded workpiece, thus the thread of workpiece can be avoided to damage.
Described hole clipping is U-shaped draw-in groove 17 or bar hole (the present embodiment selects the design of U-shaped draw-in groove 17), and the shaft of backstay 3 is through U-shaped draw-in groove 17 or bar hole, the cap portion 18 diameter >U type draw-in groove 17 of backstay and the width of bar hole.This design makes backstay and poke rod 8 coordinate and can locate clamping plate 5 preferably, guarantees that clamping plate can not be shifted.Guarantee that clamping plate is deflect centered by poke rod 8 all the time, improve the cooperation accuracy between each clamping plate.
The downside of described clamping plate is fixedly installed baffle plate 7, and the front end 20 of baffle plate is stretched out clamping plate 5 and supported workpiece to be clamped.When the design of baffle plate makes workpiece clamp, can there be a location its workpiece the inner, makes machining accuracy better.
The downside of described outer disk 2 is provided with base 11, and the middle part of base 11 and inner rotary table 9 is provided with through hole, and a push rod 15 stretches in described base and inner rotary table also can hold out against workpiece to be clamped.
The lower rotational of described inner rotary table 9 is arranged on fixed disk 10, and fixed disk 10 is arranged on the pedestal 11.
The downside of described base 11 is provided with pull-fork assembly, and pull-fork assembly comprises shift fork 13 and latch 12, and latch 12 is connected with inner rotary table 9 with the through hole on fixed disk 10 through base 11.
The shift fork 13 of described pull-fork assembly is provided with U-shaped caulking groove 19.
Above-described embodiment is only preferred embodiment of the present utility model, not limits protection domain of the present utility model according to this, therefore: all equivalence changes done according to structure of the present utility model, shape, principle, all should be covered by within protection domain of the present utility model.

Claims (7)

1. the tight lead agency of screw clamp, comprises outer disk and is arranged on the inner rotary table in the middle part of outer disk, inner rotary table is evenly equipped with several poke rods, it is characterized in that, on described poke rod, order is set with spring and sleeve, and one end of spring is against on the downside of sleeve, and the other end of spring is against inner rotary table surface; Clamping plate is set with in the middle part of described sleeve; Described clamping plate the inner is provided with locking screw portion, and the outer end of clamping plate is provided with hole clipping, and backstay passes described hole clipping and is fixedly installed on the end cap on outer disk top; When described inner rotary table rotates, clamping plate deflects centered by poke rod, and the locking screw portion of several clamping plate the inners works in coordination and clamps or unclamp workpiece.
2. the tight lead agency of a kind of screw clamp according to claim 1, it is characterized in that, described hole clipping is U-shaped draw-in groove or bar hole, and the shaft of backstay is through U-shaped draw-in groove or bar hole, the cap portion diameter >U type draw-in groove of backstay and the width of bar hole.
3. the tight lead agency of a kind of screw clamp according to claim 1, it is characterized in that, the downside of described clamping plate is fixedly installed baffle plate, and the front end of baffle plate is stretched out clamping plate and supported workpiece to be clamped.
4. the tight lead agency of a kind of screw clamp according to claim 1, it is characterized in that, the downside of described outer disk is provided with base, and the middle part of base and inner rotary table is provided with through hole, and a push rod stretches in described base and inner rotary table also can hold out against workpiece to be clamped.
5. the tight lead agency of a kind of screw clamp according to claim 1, is characterized in that, the lower rotational of described inner rotary table is arranged on fixed disk, and fixed disk is arranged on base.
6. the tight lead agency of a kind of screw clamp according to claim 1, it is characterized in that, the downside of described base is provided with pull-fork assembly, and pull-fork assembly comprises shift fork and latch, and latch is connected with inner rotary table with the through hole on fixed disk through base.
7. the tight lead agency of a kind of screw clamp according to claim 1, is characterized in that, the shift fork of described pull-fork assembly is provided with U-shaped caulking groove.
CN201520411156.9U 2015-06-15 2015-06-15 Tight driving mechanism of screw clamp Expired - Fee Related CN204843845U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520411156.9U CN204843845U (en) 2015-06-15 2015-06-15 Tight driving mechanism of screw clamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520411156.9U CN204843845U (en) 2015-06-15 2015-06-15 Tight driving mechanism of screw clamp

Publications (1)

Publication Number Publication Date
CN204843845U true CN204843845U (en) 2015-12-09

Family

ID=54734439

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520411156.9U Expired - Fee Related CN204843845U (en) 2015-06-15 2015-06-15 Tight driving mechanism of screw clamp

Country Status (1)

Country Link
CN (1) CN204843845U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106425255A (en) * 2016-09-30 2017-02-22 横店集团英洛华电气有限公司 Robot welding positioning device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106425255A (en) * 2016-09-30 2017-02-22 横店集团英洛华电气有限公司 Robot welding positioning device
CN106425255B (en) * 2016-09-30 2018-03-09 横店集团英洛华电气有限公司 Robot welding positioner

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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
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20151209

Termination date: 20200615