CN207564389U

CN207564389U - Antisitic defect dismantling spanner

Info

Publication number: CN207564389U
Application number: CN201721714221.0U
Authority: CN
Inventors: 高山; 孙世佳; 陈明超
Original assignee: State-Owned No228 Factory
Current assignee: State-Owned No228 Factory
Priority date: 2017-12-11
Filing date: 2017-12-11
Publication date: 2018-07-03
Anticipated expiration: 2027-12-11

Abstract

The utility model discloses a kind of antisitic defect dismantling spanner, including：Wrench body (1), as Handheld Division；Wrench body (1) front end sets fixed part, and one end of puller strap is fixed on fixed part；Fulcrum is additionally provided in wrench body (1), fulcrum location is fixed in compressing member hinged on fixed part rear, fulcrum, the other end of puller strap on compressing member；When locking workpiece (3), the puller strap other end is pressed on workpiece by puller strap around workpiece (3) excircle, compressing member, realizes the locking to workpiece (3).The utility model increases the frictional force of workpiece and flexible-belt using rubber, and supporting point is contacted with workpiece using Inner arc, prevents card bad workpiece, use simplicity.

Description

Antisitic defect dismantling spanner

Technical field

The utility model belongs to mechanical processing tooling technical field, is related to a kind of antisitic defect dismantling spanner.

Background technology

When processing thin-walled revolution workpiece workpiece, workpiece requirement concentricity is high, and workpiece can not be completed in clamped one time processing, It needs to be threadedly coupled and be processed, after the completion of work pieces process, due to cutting force, workpiece is made to be tightened with fixture screw thread, without special With spanner it is difficult to remove workpiece.

Utility model content

(1) purpose of utility model

The purpose of this utility model is：The defects of overcoming in the prior art provides a kind of antisitic defect dismantling spanner, realization pair The convenient processing of thin-walled revolution workpiece workpiece.

(2) technical solution

In order to solve the above-mentioned technical problem, the utility model provides a kind of antisitic defect dismantling spanner, including：Wrench body 1, as Handheld Division；1 front end of wrench body sets fixed part, and one end of puller strap is fixed on fixed part；In wrench body 1 also Fulcrum is provided with, fulcrum location is fixed on compression in compressing member hinged on fixed part rear, fulcrum, the other end of puller strap On part；When locking workpiece 3, the puller strap other end is pressed on workpiece by puller strap around 3 excircle of workpiece, compressing member, is realized Locking to workpiece 3.

Wherein, 1 front end of wrench body is concave arc shape, and puller strap one end is fixed on cancave cambered surface, realizes and tenses band During around 3 excircle of workpiece, the shape of puller strap one end is adapted to the shape with the circumferential shapes of workpiece 3.

Wherein, described puller strap one end is fixed by screws in 1 front end of wrench body, and rubber is set between screw and puller strap Rubber cushion.

Wherein, the puller strap includes two layers, and outer layer is belt layer, and internal layer is rubber layer, and rubber layer is used to justify with workpiece 3 Circumferential surface is in direct contact.

Wherein, the fulcrum is the protruding portion in wrench body 1, offers hole thereon；Compressing member include articulated section and Compressed part offers hole on articulated section, passes through the hole in fulcrum and articulated section using axis pin, realizes compressing member and wrench body Being hinged between 1.

Wherein, the compressed part is cambered surface, and shape is adapted with the peripheral surface of workpiece 3, can be fitted tightly over workpiece 3 On peripheral surface.

Wherein, the width of the compressed part is the 20%~30% of 3 perimeter of workpiece.

(3) advantageous effect

The antisitic defect dismantling spanner that above-mentioned technical proposal is provided increases the frictional force of workpiece and flexible-belt using rubber, Supporting point is contacted using Inner arc with workpiece, is prevented card bad workpiece, is used simplicity.

Description of the drawings

Fig. 1 is the structure diagram of the utility model embodiment antisitic defect dismantling spanner.

In figure, 1- wrench bodies, 2- axis pins, 3- workpiece, 4- rubber layers, 5- belt layers.

Specific embodiment

To make the purpose of this utility model, content and advantage clearer, with reference to the accompanying drawings and examples, to this practicality Novel specific embodiment is described in further detail.

With reference to shown in Fig. 1, the present embodiment antisitic defect dismantling spanner includes：Wrench body 1, as Handheld Division；Wrench body 1 Front end sets fixed part, and one end of puller strap is fixed on fixed part；Fulcrum, fulcrum location are additionally provided in wrench body 1 In fixed part rear, hinged compressing member, the other end of puller strap are fixed on compressing member in fulcrum；When locking workpiece 3, tense The puller strap other end is pressed on workpiece by band around 3 excircle of workpiece, compressing member, realizes the locking to workpiece 3.

1 front end of wrench body is concave arc shape, and puller strap one end is fixed on cancave cambered surface, realizes puller strap outside workpiece 3 During circumference, the shape of puller strap one end is adapted to the shape with the circumferential shapes of workpiece 3, increases the compactness of puller strap and workpiece 3.

Puller strap one end is fixed by screws in 1 front end of wrench body, and rubber pad is set between screw and puller strap, is avoided Abrasion of the screw to puller strap.

Puller strap includes two layers, and outer layer is belt layer, and internal layer is rubber layer, and rubber layer is used for direct with 3 periphery of workpiece Contact.

Fulcrum is the protruding portion in wrench body 1, offers hole thereon；Compressing member includes articulated section and compressed part, hinge Hole is offered in socket part, the hole in fulcrum and articulated section is passed through using axis pin, realizes the hinge between compressing member and wrench body 1 It connects.

Compressed part is cambered surface, and shape is adapted with the peripheral surface of workpiece 3, can be fitted tightly on 3 peripheral surface of workpiece.

The width of compressed part is the 20%~30% of 3 perimeter of workpiece, while structure is simplified, realizes reliable compress.

The course of work:

Product surface roughness requirements Ra1.6 after being processed due to workpiece 3, is damaged in workpiece disassembly process to prevent, pulled Hand fulcrum uses circle arc support, and branch point circular arc pull-up taut band size is consistent with diameter of work size, and spanner is closely tied with workpiece Close, the power of spanner is acted on fulcrum during use, internal layer rubber layer play the role of it is anti-skidding, it is not damaged under the action of spanner power Remove workpiece.

The utility model utilizes the effect of lever force, under the support of axis pin, locks workpiece, and make workpiece and fixture screw thread It unclamps.

The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art For art personnel, under the premise of the utility model technical principle is not departed from, several improvement and deformation can also be made, these change The scope of protection of the utility model is also should be regarded as into deformation.

Claims

1. a kind of antisitic defect dismantling spanner, which is characterized in that including：Wrench body (1), as Handheld Division；Before wrench body (1) End setting fixed part, one end of puller strap is fixed on fixed part；Wrench body is additionally provided with fulcrum, fulcrum location on (1) In fixed part rear, hinged compressing member, the other end of puller strap are fixed on compressing member in fulcrum；When locking workpiece (3), draw The puller strap other end is pressed on workpiece by taut band around workpiece (3) excircle, compressing member, realizes the locking to workpiece (3).

2. antisitic defect dismantling spanner as described in claim 1, which is characterized in that wrench body (1) front end is concave arc shape, Puller strap one end is fixed on cancave cambered surface, when realizing puller strap around workpiece (3) excircle, the shape and work of puller strap one end The circumferential shapes of part (3) are adapted to the shape.

3. antisitic defect dismantling spanner as claimed in claim 2, which is characterized in that described puller strap one end is fixed by screws in Wrench body (1) front end, sets rubber pad between screw and puller strap.

4. antisitic defect dismantling spanner as described in claim 1, which is characterized in that the puller strap includes two layers, and outer layer is skin Belt, internal layer are rubber layer, and rubber layer is used to be in direct contact with workpiece (3) periphery.

5. antisitic defect dismantling spanner as described in claim 1, which is characterized in that the fulcrum is in wrench body (1) Protruding portion offers hole thereon；Compressing member includes articulated section and compressed part, and hole is offered on articulated section, and branch is passed through using axis pin Being hinged between compressing member and wrench body (1) is realized in hole in point portion and articulated section.

6. antisitic defect dismantling spanner as claimed in claim 5, which is characterized in that the compressed part is cambered surface, shape and work The peripheral surface of part (3) is adapted, and can be fitted tightly on workpiece (3) peripheral surface.

7. antisitic defect dismantling spanner as claimed in claim 6, which is characterized in that the width of the compressed part is workpiece (3) week Long 20%~30%.