CN205415435U

CN205415435U - Moment of torsion blind rivet spanner

Info

Publication number: CN205415435U
Application number: CN201520978503.6U
Authority: CN
Inventors: 张少波; 丁向阳
Original assignee: LUOYANG XINCHENG PRECISION MACHINERY CO Ltd
Current assignee: LUOYANG XINCHENG PRECISION MACHINERY CO Ltd
Priority date: 2015-11-26
Filing date: 2015-11-26
Publication date: 2016-08-03
Anticipated expiration: 2025-11-26

Abstract

The utility model discloses a moment of torsion blind rivet spanner, this moment of torsion blind rivet spanner can block the blind rivet neck including the wrench end of U type step design, and the step design has increased the thickness of wrench end, and then has increased wrench end intensity. Required moment when wrenching bar can set up the blind rivet fastening in advance. Wrench end and the wrenching bar quick change spring catch on through the wrench end is connected. According to the utility model discloses, can realize when the torsion value reaches the dynamics of settlement, can sending the sound of " ticking ", the automatic warning with accurate torsion installation blind rivet, prevent that the blind rivet from crossing to turn round, install not in placely or the damage of blind rivet spanner.

Description

A kind of moment of torsion blind rivet wrench

[technical field]

This utility model relates to dismantling device field, especially relates to a kind of moment of torsion blind rivet wrench installing blind rivet.

[background technology]

Known, current field of machining more and more uses machining center, and the use of machining center will have a handle of a knife being connected with cutter, and what handle of a knife was connected generally by blind rivet with machining center, so when replacing cutter, it is necessary to dismount blind rivet.In the actual application of factory, it will usually dismounting blind rivet with Open jaw type wrench or common blind rivet wrench, both modes all exist some problems.

Using Open jaw type wrench dismounting blind rivet, spanner is easy to landing from the flat position of blind rivet, is difficult to tighten or pull down blind rivet, or causes spanner to damage.

Common blind rivet wrench is used to dismount blind rivet, can be relatively good than Open jaw type wrench, but, common blind rivet wrench does not has torsion to arrange function, during use, is mostly the experience by technical staff, if blind rivet installs tension with handle of a knife, can make blind rivet all the time by bigger pulling force, use for a long time, blind rivet fatigue fracture can be caused；Machine tool chief axis can be made to draw not tight handle of a knife to lose machining accuracy if installing pine, the harsh conditions such as violence dismounting, blind rivet wrench damage even occurred.

[summary of the invention]

In order to overcome the deficiency in background technology, the utility model discloses a kind of moment of torsion blind rivet wrench, described moment of torsion blind rivet wrench is applicable to the dismounting of blind rivet.And can preset blind rivet and install required torsion, when torque value reaches the dynamics set, moment of torsion blind rivet wrench can send the sound of " ticking ", shows the most to install to put in place.

For achieving the above object, this utility model adopts the following technical scheme that

1. overall structure: overall structure is by the blind rivet wrench head of U-shaped step design and can form with the blind rivet wrench bar of preset torque value, and driving end is attached with wrenching bar by quick change spring catch or is dismantled.

2. driving end: driving end is designed with the U-shaped step design corresponding with blind rivet, can block blind rivet cervical region, step design adds the thickness of driving end, and then adds driving end intensity.Refer to Fig. 1.

3. wrenching bar: wrenching bar can pre-set the moment needed for fastening blind rivet.Refer to Fig. 2.

4. driving end and the connection of wrenching bar: the driving end of each model assembles corresponding wrenching bar, as BT30 driving end needs to assemble the wrenching bar of BT30, both are connected by the quick change spring catch on driving end.

5. the setting principle of torque value: it is that BT30, BT40, BT50 blind rivet wrench sets torsion that this utility model is presently mainly, torsion design requirement when meeting installation BT30, BT40, BT50 blind rivet, it is to avoid cross and turn round or turn round the generation of hypodynamic phenomenon.Being typically based on design and require that the installation torque value of BT30 blind rivet is 20～25N.m, the installation torque value of BT40 blind rivet is 60～80N.m, and the installation torque value of BT50 blind rivet is 200～250N.m.

[accompanying drawing explanation]

Fig. 1 is driving end schematic diagram；

Fig. 2 is wrenching bar schematic diagram.

In figure: 1, driving end；2, quick change spring catch；3, wrenching bar.

[detailed description of the invention]

Can be explained in more detail the present invention by the following examples, open the purpose of this utility model is intended to protect all changes and improvements in the range of this utility model, and this utility model is not limited to the following examples:

In conjunction with accompanying drawing 1, accompanying drawing 2, described moment of torsion blind rivet wrench comprises driving end, wrenching bar two parts.

Claims

1. a moment of torsion blind rivet wrench, it is characterized in that the blind rivet wrench head (1) comprising U-shaped step design and can be with the blind rivet wrench bar (3) of preset torque value, and driving end and wrenching bar are attached by quick change spring catch (2) or are dismantled.

Moment of torsion blind rivet wrench the most according to claim 1, it is characterised in that blind rivet wrench head (1) has U-shaped step design, can block blind rivet cervical region, step design adds the thickness of driving end, and then adds driving end intensity.

Moment of torsion blind rivet wrench the most according to claim 1, it is characterised in that blind rivet wrench bar (3) can be with preset required torque value.

Moment of torsion blind rivet wrench the most according to claim 3, it is characterised in that by the quick change spring catch (2) of design on driving end, driving end and wrenching bar can be connected.