CN105328281A - Clamping mechanism provided with lead screw and reset tension springs - Google Patents

Clamping mechanism provided with lead screw and reset tension springs Download PDF

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Publication number
CN105328281A
CN105328281A CN201510854566.5A CN201510854566A CN105328281A CN 105328281 A CN105328281 A CN 105328281A CN 201510854566 A CN201510854566 A CN 201510854566A CN 105328281 A CN105328281 A CN 105328281A
Authority
CN
China
Prior art keywords
clamping
clamping limb
reset tension
screw mandrel
tension spring
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.)
Pending
Application number
CN201510854566.5A
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Chinese (zh)
Inventor
熊利祥
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.)
CHONGQING SHOUYE MACHINERY MANUFACTURING Co Ltd
Original Assignee
CHONGQING SHOUYE MACHINERY 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 CHONGQING SHOUYE MACHINERY MANUFACTURING Co Ltd filed Critical CHONGQING SHOUYE MACHINERY MANUFACTURING Co Ltd
Priority to CN201510854566.5A priority Critical patent/CN105328281A/en
Publication of CN105328281A publication Critical patent/CN105328281A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a clamping mechanism provided with a lead screw and reset tension springs. The clamping mechanism provided with the lead screw and the reset tension springs comprises an installation base. An installation cavity is formed in the installation base. At least three clamping arms are arranged in the installation cavity and evenly distributed in the circumferential direction. The head of each clamping arm stretches forwards out of the installation cavity. The middle of each clamping arm is hinged to the installation base. One clamping arm ejector rod is arranged in the portion, behind the clamping arms, of the installation base in a penetrating mode. The front end of the clamping arm ejector rod aims at the tails of the clamping arms. When the clamping arm ejector rod advances, the tails of the clamping arms are pushed to be separated from one another, and the heads of the clamping arms are pushed to be close to one another. The clamping arm ejector rod is driven by a jacking device provided with the lead screw. The clamping arm reset tension springs are arranged between the tails of the adjacent clamping arms respectively. The tails of the clamping arms are pulled through the clamping arm reset tension springs to be close to one another, so that the clamping arms are restored. By the adoption of the structure, clamping of bevel gear shafts with different diameters is achieved, operation is easy, and the application range is wide.

Description

With the clamp system of screw mandrel and reset tension spring
Technical field
The invention belongs to machining tool clamp field, be specifically related to a kind of clamp system with screw mandrel and reset tension spring.
Background technology
Bevel gear is also bevel gear, is widely used in industrial drive apparatus, differential for vehicles, locomotive, boats and ships, power plant, steel mill, railroad track detection etc.Need in bevel gear making process to use fixture to be fixed by bevel gear shaft, then processing and forming is carried out to bevel gear, normally used bevel gear shaft fixture is only a columnar clamping device, therefore the bevel gear shaft for different-diameter needs workman to change the suitable cartridge clamp of internal diameter, not only waste resource, need the cartridge clamp preparing various different model, also waste time and energy, reduce production efficiency, overcome the above problems and become the task of top priority.
Summary of the invention
For solving above technical problem, the invention provides a kind of structure ingenious, applicability is high, can the clamp system with screw mandrel and reset tension spring of firm grip different-diameter bevel gear shaft.
For achieving the above object, technical solution of the present invention is as follows:
A kind of clamp system with screw mandrel and reset tension spring, comprise mount pad (8), be provided with in this mount pad (8) and cavity (81) is installed, at least three clamping limbs (B) are provided with in this installation cavity (81), this clamping limb (B) hoop is uniformly distributed, its main points are: the head of described clamping limb (B) stretches out forward described installation cavity (81) respectively, the middle part of this clamping limb (B) is hinged with mount pad (8) respectively, same clamping limb push rod (9) is equipped with in the mount pad (8) at described clamping limb (B) rear, the afterbody of described clamping limb (B) is aimed in the front end of this clamping limb push rod (9), when this clamping limb push rod (9) advances, the afterbody promoting described clamping limb (B) relatively separately and head clamps relatively, described clamping limb push rod (9) is driven by jacking apparatus (C), described jacking apparatus (C) comprises screw mandrel (10), the front end of this screw mandrel (10) penetrates described mount pad (8), the end that penetrates of described screw mandrel (10) is connected with the rear end axial thread of described clamping limb push rod (9), and the rear end of this screw mandrel (10) is connected with turning handle (11), be respectively equipped with clamping limb reset tension spring (7) between the afterbody of adjacent two described clamping limbs (B), this clamping limb reset tension spring (7) pulls the afterbody of described clamping limb (B) relatively clamp and reset.
Adopt above structure, clamping limb push rod (9) travels forward, order about clamping limb (B) head to close, clamping cone gear shaft, be convenient to the follow-up processing to bevel gear, machine rear clamping limb (B) to reset under the effect of clamping limb reset tension spring (7), the diameter of the bevel gear shaft clamped as required due to the large I of clamping limb (B) folding of this structure adjusts flexibly, therefore applied widely, and simple to operate, be easy to left-hand seat.
As preferably: described clamping limb (B) comprises clamping lever (1), and the front portion of this clamping lever (1) is hinged with movable clamping head (2).Adopt above structure, movable clamping head (2) is automatic rotation adjustment angle according to the diameter of the bevel gear shaft of clamping, makes its firm grip bevel gear shaft.
As preferably: the rear portion inwardly protruding of described clamping lever (1), form upset top-joining part (6), it is right that this upset top-joining part (6) and described clamping limb push rod (9) front is rectified.Adopt above structure, make clamping limb (B) that the less bevel gear shaft of diameter can be clamped.
As preferably: described movable clamping head (2) comprises two just to the grip block installing plate (21) arranged, be connected with grip block (22) between the inward flange of two these grip block installing plates (21), the front portion of described clamping lever (1) is arranged between two described grip block installing plates (21) by movable rotation-shaft (5).Adopt above structure, be beneficial to movable clamping head (2) clamping cone gear shaft.
As preferably: the clamping end face of described grip block (22) is curved.Adopt above structure, increase the contact area of grip block (22) and bevel gear shaft, and then increasing friction force, be beneficial to clamping cone gear shaft.
As preferably: be provided with extension spring installing hole (3) at the rear portion of described clamping lever (1), the termination, two ends of described clamping limb reset tension spring (7) respectively extension spring installing hole (3) described with adjacent two is connected.Adopt above structure, can effectively reset to clamping limb (B).
As preferably: described grip block installing plate (21) and described grip block (22) integrated molding.Adopt above structure, make movable clamping head (2) structure more firm.
As preferably: the middle part of described clamping limb (B) is hinged in described installation cavity (81) by lever installation shaft (4).Adopt above structure, simple and reliable.
Beneficial effect: the clamp system with screw mandrel and reset tension spring adopting above technical scheme, structure is simply novel, is easy to realize, by the rotation of clamping limb (B), realize the clamping to different-diameter bevel gear shaft, simple to operate, and applied widely.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of clamping limb B of the present invention;
Fig. 3 is the sectional view along A-A place in Fig. 2.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, the invention will be further described.
As shown in Figure 1, a kind of clamp system with screw mandrel and reset tension spring, comprise mount pad 8, be provided with in this mount pad 8 and cavity 81 is installed, three clamping limb B are provided with in this installation cavity 81, this clamping limb B hoop is uniformly distributed, the head of described clamping limb B stretches out forward described installation cavity 81 respectively, the middle part of this clamping limb B is hinged with mount pad 8 respectively, namely the middle part of described clamping limb B is hinged in described installation cavity 81 by lever installation shaft 4, same clamping limb push rod 9 is equipped with in the mount pad 8 at described clamping limb B rear, the afterbody of described clamping limb B is aimed in the front end of this clamping limb push rod 9, when this clamping limb push rod 9 advances, the afterbody promoting described clamping limb B relatively separately and head clamps relatively, described clamping limb push rod 9 is driven by jacking apparatus C, clamping limb reset tension spring 7 is respectively equipped with between the afterbody of adjacent two described clamping limb B, this clamping limb reset tension spring 7 pulls the afterbody of described clamping limb B relatively clamp and reset, namely be provided with extension spring installing hole 3 at the rear portion of described clamping lever 1, the termination, two ends of described clamping limb reset tension spring 7 is connected with this extension spring installing hole 3 of adjacent two clamping limb B respectively.
Refer to Fig. 1, described jacking apparatus C comprises screw mandrel 10, and the front end of this screw mandrel 10 penetrates described mount pad 8, and the end that penetrates of described screw mandrel 10 is connected with the rear end axial thread of described clamping limb push rod 9, and the rear end of this screw mandrel 10 is connected with turning handle 11.
See Fig. 1 and Fig. 2, described clamping limb B comprises clamping lever 1, and the front portion of this clamping lever 1 is hinged with movable clamping head 2, the rear portion inwardly protruding of described clamping lever 1, forms upset top-joining part 6, and this upset top-joining part 6 is front proper right with described clamping limb push rod 9.
As shown in Figure 3, described movable clamping head 2 comprises two just to the grip block installing plate 21 arranged, grip block 22 is connected with between the inward flange of two these grip block installing plates 21, the clamping end face of described grip block 22 is curved, described grip block installing plate 21 and described grip block 22 integrated molding, the front portion of described clamping lever 1 is arranged between two described grip block installing plates 21 by movable rotation-shaft 5.
During use, rotary motion handle 11 drives screw mandrel 10 to rotate, and screw mandrel 10 drives clamping limb push rod 9 to back down forward top-joining part 6, and after clamping limb is rotated, clamping head 2 closes, clamping cone gear shaft, start to process bevel gear, after machining, reversely rotate turning handle 11, order about clamping limb push rod 9 to retreat, clamping limb B resets under the effect of clamping limb reset tension spring 7, and clamping head 2 is opened, and takes out the bevel gear machined.
Finally need explanation; foregoing description is only the preferred embodiments of the present invention, those skilled in the art under enlightenment of the present invention, under the prerequisite without prejudice to present inventive concept and claim; can make like multiple types and representing, such conversion all falls within protection scope of the present invention.

Claims (8)

1. the clamp system with screw mandrel and reset tension spring, comprise mount pad (8), be provided with in this mount pad (8) and cavity (81) is installed, at least three clamping limbs (B) are provided with in this installation cavity (81), this clamping limb (B) hoop is uniformly distributed, and it is characterized in that:
The head of described clamping limb (B) stretches out forward described installation cavity (81) respectively, the middle part of this clamping limb (B) is hinged with mount pad (8) respectively, same clamping limb push rod (9) is equipped with in the mount pad (8) at described clamping limb (B) rear, the afterbody of described clamping limb (B) is aimed in the front end of this clamping limb push rod (9), when this clamping limb push rod (9) advances, relatively separately and head clamps relatively, described clamping limb push rod (9) is driven by jacking apparatus (C) afterbody promoting described clamping limb (B);
Described jacking apparatus (C) comprises screw mandrel (10), the front end of this screw mandrel (10) penetrates described mount pad (8), the end that penetrates of described screw mandrel (10) is connected with the rear end axial thread of described clamping limb push rod (9), and the rear end of this screw mandrel (10) is connected with turning handle (11);
Be respectively equipped with clamping limb reset tension spring (7) between the afterbody of adjacent two described clamping limbs (B), this clamping limb reset tension spring (7) pulls the afterbody of described clamping limb (B) relatively clamp and reset.
2. the clamp system with screw mandrel and reset tension spring according to claim 1, it is characterized in that: described clamping limb (B) comprises clamping lever (1), the front portion of this clamping lever (1) is hinged with movable clamping head (2).
3. the clamp system with screw mandrel and reset tension spring according to claim 2, it is characterized in that: the rear portion inwardly protruding of described clamping lever (1), form upset top-joining part (6), this upset top-joining part (6) is front proper right with described clamping limb push rod (9).
4. the clamp system with screw mandrel and reset tension spring according to Claims 2 or 3, it is characterized in that: described movable clamping head (2) comprises two just to the grip block installing plate (21) arranged, be connected with grip block (22) between the inward flange of two these grip block installing plates (21), the front portion of described clamping lever (1) is arranged between two described grip block installing plates (21) by movable rotation-shaft (5).
5. the clamp system with screw mandrel and reset tension spring according to claim 4, is characterized in that: the clamping end face of described grip block (22) is curved.
6. the clamp system with screw mandrel and reset tension spring according to Claims 2 or 3, it is characterized in that: be provided with extension spring installing hole (3) at the rear portion of described clamping lever (1), the termination, two ends of described clamping limb reset tension spring (7) respectively extension spring installing hole (3) described with adjacent two is connected.
7. the clamp system with screw mandrel and reset tension spring according to claim 4, is characterized in that: described grip block installing plate (21) and described grip block (22) integrated molding.
8. the clamp system with screw mandrel and reset tension spring according to claim 1, is characterized in that: the middle part of described clamping limb (B) is hinged in described installation cavity (81) by lever installation shaft (4).
CN201510854566.5A 2015-11-30 2015-11-30 Clamping mechanism provided with lead screw and reset tension springs Pending CN105328281A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510854566.5A CN105328281A (en) 2015-11-30 2015-11-30 Clamping mechanism provided with lead screw and reset tension springs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510854566.5A CN105328281A (en) 2015-11-30 2015-11-30 Clamping mechanism provided with lead screw and reset tension springs

Publications (1)

Publication Number Publication Date
CN105328281A true CN105328281A (en) 2016-02-17

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510854566.5A Pending CN105328281A (en) 2015-11-30 2015-11-30 Clamping mechanism provided with lead screw and reset tension springs

Country Status (1)

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CN (1) CN105328281A (en)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0500405A1 (en) * 1991-02-18 1992-08-26 ESSILOR INTERNATIONAL, Compagnie Générale d'Optique Cramping and grasping device
CN203245755U (en) * 2013-04-08 2013-10-23 杭州宇丰锻造有限公司 Fast workpiece clamping device
CN203599924U (en) * 2013-11-19 2014-05-21 重庆风过旗扬科技发展有限公司 Double-acting hinge clamping device
CN203622022U (en) * 2013-10-29 2014-06-04 天津博信汽车零部件有限公司 Clamping and positioning device
CN203779178U (en) * 2014-04-28 2014-08-20 泸州沱江液压件有限公司 Hydraulic clamping device for machining large-scale shaft parts
CN203831300U (en) * 2014-04-16 2014-09-17 力帆实业(集团)股份有限公司 Three-jaw calipers clamping device
CN104647089A (en) * 2013-11-21 2015-05-27 西安众智惠泽光电科技有限公司 Hydraulic driving type centering clamping device for outer circle
CN204621788U (en) * 2015-05-20 2015-09-09 四川制动科技股份有限公司 A kind of clamp structure
CN204658023U (en) * 2015-03-21 2015-09-23 重庆凌丰科技有限公司 A kind of cylindrical part boring grab

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0500405A1 (en) * 1991-02-18 1992-08-26 ESSILOR INTERNATIONAL, Compagnie Générale d'Optique Cramping and grasping device
CN203245755U (en) * 2013-04-08 2013-10-23 杭州宇丰锻造有限公司 Fast workpiece clamping device
CN203622022U (en) * 2013-10-29 2014-06-04 天津博信汽车零部件有限公司 Clamping and positioning device
CN203599924U (en) * 2013-11-19 2014-05-21 重庆风过旗扬科技发展有限公司 Double-acting hinge clamping device
CN104647089A (en) * 2013-11-21 2015-05-27 西安众智惠泽光电科技有限公司 Hydraulic driving type centering clamping device for outer circle
CN203831300U (en) * 2014-04-16 2014-09-17 力帆实业(集团)股份有限公司 Three-jaw calipers clamping device
CN203779178U (en) * 2014-04-28 2014-08-20 泸州沱江液压件有限公司 Hydraulic clamping device for machining large-scale shaft parts
CN204658023U (en) * 2015-03-21 2015-09-23 重庆凌丰科技有限公司 A kind of cylindrical part boring grab
CN204621788U (en) * 2015-05-20 2015-09-09 四川制动科技股份有限公司 A kind of clamp structure

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Application publication date: 20160217

RJ01 Rejection of invention patent application after publication