CN206392620U - A kind of special stretching jaw of " W " section bar - Google Patents
A kind of special stretching jaw of " W " section bar Download PDFInfo
- Publication number
- CN206392620U CN206392620U CN201621237053.6U CN201621237053U CN206392620U CN 206392620 U CN206392620 U CN 206392620U CN 201621237053 U CN201621237053 U CN 201621237053U CN 206392620 U CN206392620 U CN 206392620U
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- section bar
- jaw
- mouthful
- middle spacer
- flat pliers
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Abstract
A kind of special stretching jaw of " W " section bar, including by both sides flat pliers mouthful, middle spacer, screw composition, it is characterised in that, the both sides flat pliers mouthful, middle spacer, by both sides screw by both sides flat pliers mouthful and middle spacer fixes three components and combines and form the special stretching jaw of " W " section bar.The described special stretching jaw of " W " section bar, it is characterised in that the both sides flat pliers mouthful its to trapezoidal to section, middle spacer is planar rectangular structure.The described special stretching jaw of " W " section bar, it is characterised in that the both sides flat pliers mouthful and middle spacer contact-type face design toothing, prevents from skidding between jaw and section bar during stretching, in order to improve intensity, jaw entirety modulation treatment：HB250~290；The flank of tooth is quenched, and hardness reaches HRC50~54.Not only reduce the percent defective of product, improve production efficiency, solve cross section complex shapes and be difficult to the bottleneck of the tension straingtening on flat pliers mouthful, and can in industry promote the use of.
Description
Technical field
The utility model is related to a kind of special stretching jaw of " W " section bar.
Background technology
Stretcher leveling be squeeze wood must through process, mainly eliminate tube, rod section material internal stress, also for acquisition
More straight product, and the position of tension flattening machine clamping section is exactly jaw, commonly referred to as stretches jaw.But some
Section bar, tubing are in stretching, because stretching jaw is all flat pliers mouthful, it is easy to cause the clamping of product to deform, cause product stress
Inequality, drawing effect does not reach requirement.Therefore, many products need special stretching core head, and the aid such as cushion block reduces production
The clamping deformation of product, makes section bar uniform force in stretching, while decreasing crack conditions of the product at chuck.
" W " section bar of my company's production, the plane of top both sides using flat pliers mouthful as shown in figure 1, can not be clamped to, stretching
When unbalance stress, after stretching this two plane produce under it is curved cause go up plane clearance it is overproof, cause this section bar waste product.Using two planes
During the method for lower cushioning block, because cushion block uses duralumin, hard alumin ium alloy, the coefficient of friction between section bar is small, easily skids, stretching effect
Fruit is still undesirable, meanwhile, cushion block handling are particularly troublesome, and the stretching of each material will place cushion block, and this operation needs artificial complete
Into wasting time and energy, greatly reduce production efficiency.
There is problem in existing stretcher jaw：1st, unbalance stress at section bar chuck, causes holding position section bar deformation；2nd, cushion block
Frictional force is small between section bar, easily skids；3rd, cushion block is inconvenient to load and unload.
Utility model content
The utility model to solve " W " section bar of prior art production, such as directly with existing stretching jaw flat pliers mouth and
Stretching cushion block can not reach expected drawing effect, it is necessary to make corresponding special stretching jaw, to solve the above problems, improving
Production efficiency, should meet drawing process requirement, and the economical and practical special stretching jaw of " W " section bar of energy, solve the section bar and exist
There is provided a kind of special stretching jaw of " W " section bar for problem present in stretcher leveling.
The technical solution of the utility model is：
The special stretching jaw of one kind " W " section bar of the present utility model, including by both sides flat pliers mouthful, middle spacer, screw group
Into, it is characterised in that the both sides flat pliers mouthful, middle spacer, by both sides screw both sides flat pliers mouthful and middle spacer fixed three
Component combines to form the special stretching jaw of " W " section bar.
The described special stretching jaw of " W " section bar, it is characterised in that the both sides flat pliers mouthful its to trapezoidal to section,
Middle spacer is planar rectangular structure.
The described special stretching jaw of " W " section bar, it is characterised in that the both sides flat pliers mouthful and middle spacer contact section bar
Toothing is designed in face, prevents from skidding between jaw and section bar during stretching, in order to improve intensity, jaw entirety modulation treatment：
HB250~290；The flank of tooth is quenched, and hardness reaches HRC50~54.
Advantage and effect of the present utility model are：After the special stretching jaw of this " W " section bar, the stretching of " W " section bar is rectified
Straight effect has obtained remarkable improvement, and plane clearance is guaranteed, and percent defective reduces 50%, and this creates huge to batch production
Big economic benefit；The special stretching jaw of this " W " section bar alleviates manpower, improves efficiency, originally needed for a piece product of stretching
Time is ten minutes, only needs complete within 5 minutes now, it is seen that the raising of efficiency is exactly to create benefit.Should the special stretching of " W " section bar
The application of jaw not only reduces the percent defective of product, improves production efficiency, also the tension belt to other similar product forms
Outlet is newly carried out, has been that further improve of stretching process of subsequent extrusion material lays the foundation.
It is somebody's turn to do the special stretching jaw of " W " section bar and solves the bottle that cross section complex shapes are difficult to the tension straingtening on flat pliers mouthful
Neck, and can in industry promote the use of.
Brief description of the drawings
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Fig. 1 is " W " profile structure schematic diagram；
Fig. 2 is the special stretching jaw structure schematic diagram of a kind of " W " section bar of the present utility model.
Wherein：1st, 1 ' it is both sides flat pliers mouthful, 2 be middle spacer, 3,3 ' be screw, 4 is " W " section bar.
Embodiment
Embodiment 1
Referring to the drawings shown in 1-2, the special stretching jaw of one kind " W " section bar of the present utility model, including by both sides flat pliers mouthful
1st, 1 ', middle spacer 2, screw 3,3 ' are constituted, it is characterised in that the both sides flat pliers mouthful 1,1 ', middle spacer 2, by both sides spiral shell
Both sides flat pliers mouthful 1,1 ' and middle spacer 2 are fixed three components and combine to form the special stretching jaw of " W " section bar by nail 3,3 '.
The described special stretching jaw of " W " section bar, it is characterised in that the both sides flat pliers mouthful 1,1 ' its to section in ladder
Shape, middle spacer 2 is planar rectangular structure.
The described special stretching jaw of " W " section bar, it is characterised in that the both sides flat pliers mouthful 1,1 ' and middle spacer 2 connect
Section bar face design toothing is touched, prevents from skidding between jaw and section bar during stretching, in order to improve intensity, jaw is integrally at modulation
Reason：HB250~290；The flank of tooth is quenched, and hardness reaches HRC50~54.
The special stretching jaw of one kind " W " section bar of the present utility model, design uses the lower jaw of laminating " W " section bar profile,
So ensure that the plane of section bar top both sides completely and jaw contacts so that section bar uniform force, obtain good stretching
Effect.In addition, a kind of special stretching jaw of " W " section bar of the present utility model, material contacts section bar using No. 45 steel
Toothing is done in face, prevents from skidding between jaw and section bar during stretching, in order to improve intensity, jaw entirety modulation treatment：HB250
~290；The flank of tooth is quenched, and hardness reaches HRC50~54.
The special stretching jaw of one kind " W " section bar of the present utility model, easy for installation, its fitted position is consistent with former machine, has
Very big interchangeability, so, we just can stretch the product of different demands by changing jaw.Moreover, the dress according to script
With size, for the stabilization after installing, corresponding dovetail groove is devised, danger during stretching is prevented well.This design
Compact structure, compared with general stretching jaw, alleviate certain weight, save cost of raw and processed materials.
During design, first with reference to section bar sectional dimension, profile is similar, it is ensured that the jaw of design can uniform pinching
Material, makes its stress equalization；Secondly, for the ease of processing, the design is combined and is screwed using three components, by detailed
Thin measurement, it is well-designed, it is determined that the structure type of three components combination, and carry out strength check；3rd, according to stretcher jaw
Closure dimension limit and the height of section bar determine the height dimension of this jaw；Finally, load and unload for convenience, fitted position is by original
Size design, passes through the mapping to former jaw, the rounding of data, the selection of dimensional tolerance, it is determined that fitted position.
The application of the special stretching jaw of one kind " W " section bar of the present utility model：Our company was carried out in 2015 to W section bars
Tension straingtening process, when flat pliers mouthful originally is stretched, plane clearance is excessive always on section bar, and drawing effect does not reach requirement, gives up
Product rate is high, tedious process, under efficiency.From after the special stretching jaw using this " W " section bar, the upper plane clearance of section bar reaches
Necessary requirement, percent defective reduces 50%, time saving and energy saving, significantly improves operating efficiency.
The utility model is made one and described in detail by above example, described above, is the preferable implementation of the utility model
Example, it is when the utility model practical range can not be limited, i.e., all to make equivalent changes and modifications according to the application scope, it all should still belong to this
In utility model covering scope.
Claims (3)
1. a kind of special stretching jaw of " W " section bar, including by both sides flat pliers mouthful（1、1′）, middle spacer（2）, screw（3、3′）Group
Into, it is characterised in that the both sides flat pliers mouthful（1、1′）, middle spacer（2）, by both sides screw（3、3′）By both sides flat pliers mouthful
（1、1′）And middle spacer（2）Three components are fixed to combine to form the special stretching jaw of " W " section bar.
2. the special stretching jaw of " W " section bar according to claim 1, it is characterised in that the both sides flat pliers mouthful（1、1′）
It is to, middle spacer trapezoidal to section（2）For planar rectangular structure.
3. the special stretching jaw of " W " section bar according to claim 1, it is characterised in that the both sides flat pliers mouthful（1、1′）
And middle spacer（2）Contact-type face designs toothing, prevents from skidding between jaw and section bar during stretching, strong in order to improve
Degree, jaw entirety modulation treatment：HB250~290；The flank of tooth is quenched, and hardness reaches HRC50~54.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621237053.6U CN206392620U (en) | 2016-11-18 | 2016-11-18 | A kind of special stretching jaw of " W " section bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621237053.6U CN206392620U (en) | 2016-11-18 | 2016-11-18 | A kind of special stretching jaw of " W " section bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206392620U true CN206392620U (en) | 2017-08-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621237053.6U Active CN206392620U (en) | 2016-11-18 | 2016-11-18 | A kind of special stretching jaw of " W " section bar |
Country Status (1)
| Country | Link |
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| CN (1) | CN206392620U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109513793A (en) * | 2018-12-29 | 2019-03-26 | 西南铝业（集团）有限责任公司 | A kind of grooved section drawing process and tension straingtening equipment and cushion block |
-
2016
- 2016-11-18 CN CN201621237053.6U patent/CN206392620U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109513793A (en) * | 2018-12-29 | 2019-03-26 | 西南铝业（集团）有限责任公司 | A kind of grooved section drawing process and tension straingtening equipment and cushion block |
| CN109513793B (en) * | 2018-12-29 | 2023-05-23 | 西南铝业（集团）有限责任公司 | Groove-type section bar stretching process and stretching straightening equipment |
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