CN104001763B - Simplify the process of space bent pipe processing - Google Patents
Simplify the process of space bent pipe processing Download PDFInfo
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- CN104001763B CN104001763B CN201410217474.1A CN201410217474A CN104001763B CN 104001763 B CN104001763 B CN 104001763B CN 201410217474 A CN201410217474 A CN 201410217474A CN 104001763 B CN104001763 B CN 104001763B
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Abstract
The invention discloses a kind of process simplifying space bent pipe processing, it have employed the method for rotating arc length determination dihedral angle and the method measuring projected angle determination dihedral angle, complex structure many mainly for space dihedral angle, the water screen tube that difficulty is large when bending.It solving workman's orientation problem when bending space bent pipe, avoiding workman's bend pipe and makeing mistakes, reducing scrappage simultaneously.
Description
Technical field
The present invention relates to a kind of processing technology of space bent pipe, especially many for complex structure, space dihedral angle and the process of the bend pipe that dihedral angle angle is little.
Background technology
Space bent pipe complex structure as shown in Figure 1, space dihedral angle are many and dihedral angle angle is little, in the operation of actual production bend pipe, the measuring method of traditional measurement dihedral angle, for using one flat plate, is developed in elbow, measure with dihedral angle angular templet again, as shown in Figure 2.But when bending the such pipe of Fig. 1, too little because setting level bend pipe angle, plate place, flat board cannot be kept steady, and dihedral angle angle is also very little, so visual derection level instrument has error, cannot measure accurately.Shop worker cannot locate when bending the dihedral angle of this kind of pipe, is difficult to bend.
Summary of the invention
In order to solve above-mentioned bend pipe orientation problem, ensureing bending quality, the invention provides a kind of process simplifying space bent pipe processing, it have employed the method for rotating arc length determination dihedral angle and the method measuring projected angle determination dihedral angle.
The present invention have employed following technical proposals: a kind of process simplifying space bent pipe processing, is characterized in that step is as follows:
(1) straight line is first drawn in the fixture block central horizontal position of bending die as bending die datum line;
(2) curved good elbow bending machine is clamped, and elbow is adjusted to horizontal level;
(3) draw a horizontal line section at the above-mentioned bend pipe upper clamp position place adjusting horizontal level, as bend pipe datum line, and overlap with the bending die datum line end points that bending die marks;
(4) rotate arc length according to formulae discovery again and determine another plan-position, calculate and rotate arc length L,
Formula is:
L is for rotating arc length; D is tube outer diameter, and θ is dihedral angle, calculates with θ when θ≤90 °; Then use as θ > 90 °
in generation, enters in formula to calculate;
(5) with the bend pipe datum line that bend pipe is finished for benchmark, measure the arc length L that need rotate with tape measure, and standardized straightway is as mark line; Be measure clockwise or counterclockwise when measuring arc length L herein, can directly bend model to judge by drawing iron wire in the ordinary course of things, but then need to be judged by descriptive geometry or three-dimensional graphics software under special complicated situation;
(6) mark line finished is turned to overlap with bending die datum line;
(7) bend pipe is carried out after adjustment.
In described step (6), when dihedral angle is less than 90 °, the angle of namely wanting curved is identical with last angular direction, and when dihedral angle is greater than 90 °, the angle of namely wanting curved is contrary with last angular direction.Whether effect is herein used for when bend pipe checking the direction of bend pipe correct.
When pipe diameter is less, the method for above-mentioned rotation arc length determination dihedral angle is utilized to have error, because pipe diameter little rotation arc length is also little, so easily produce error.We are through carefully studying, and have invented again and have measured projected angle to determine the method for dihedral angle.Pass through formula
, can projected angle be calculated.
Measure the method for projected angle: carry out angular templet by projected angle, during measurement, along measured place pipe center line put angular templet well and and horizontal plane, then level meter has been placed on angular templet, when the bubble of level meter is at center, has then illustrated that angle is qualified.
The invention solves the deficiency in existing pipe bending technique, for shop worker's bend pipe provides correct bending method, it is easy to operate, cost is low, can ensure bending quality, enhance productivity.Adopt the method measuring projected angle, the deficiency that can solve traditional measurement method can solve again the deficiency of the method for rotating arc length determination dihedral angle.These two kinds of bent tube techniques often can be used alternatingly in actual applications, can choose according to the actual conditions of bend pipe.
Accompanying drawing explanation
Fig. 1 is the representative graph of bend pipe.
Fig. 2 is the method figure of traditional measurement dihedral angle.
Fig. 3 is the method figure of step of the present invention (1).
Fig. 4 is the method figure of step of the present invention (2).
Fig. 5 is the method figure of step of the present invention (3).
Fig. 6 is the method figure of step of the present invention (5).
Fig. 7 is the method figure of step of the present invention (6).
Fig. 8 is the method figure of step of the present invention (7).
Fig. 9 utilizes the schematic diagram measuring projected angle determination dihedral angle in the present invention.
Figure 10 utilizes the method figure measuring projected angle determination dihedral angle in the present invention.
Dull and stereotyped 3. level meter 4. angular templet 5. bending die 6. bending die datum line 7. bend pipe datum line 8. mark lines of 1. bend pipes 2. in the drawings.
Detailed description of the invention
For the ease of understanding, illustrate the present invention in detail below in conjunction with the drawings and specific embodiments.
Simplify a process for space bent pipe processing, it is characterized in that step is as follows:
(1) straight line as shown in Figure 3, is first drawn in the fixture block central horizontal position of bending die 5 as bending die datum line 6;
(2) as shown in Figure 4, curved good elbow bending machine is clamped, and elbow is adjusted to horizontal level;
(3) as shown in Figure 5, draw a horizontal line section at the above-mentioned bend pipe 1 upper clamp position place adjusting horizontal level, as bend pipe datum line 7, and overlap with bending die datum line 6 end points that bending die 5 marks;
(4) rotate arc length according to formulae discovery again and determine another plan-position, calculate and rotate arc length L,
Formula is:
L is for rotating arc length; D is tube outer diameter, and θ is dihedral angle, calculates with θ when θ≤90 °; Then use as θ > 90 °
in generation, enters in formula to calculate;
(5) as shown in Figure 6, with the bend pipe datum line 7 that bend pipe 1 is finished for benchmark, measure the arc length L that need rotate with tape measure, and standardized straightway is as mark line 8; Be measure clockwise or counterclockwise when measuring arc length L herein, can directly bend model to judge by drawing iron wire in the ordinary course of things, but then need to be judged by descriptive geometry or three-dimensional graphics software under special complicated situation;
(6) as shown in Figure 7, the mark line 8 finished is turned to overlap with bending die datum line 6;
(7) bend pipe is carried out after adjustment, as shown in Figure 8.
In described step (6), when dihedral angle is less than 90 °, the angle of namely wanting curved is identical with last angular direction, and when dihedral angle is greater than 90 °, the angle of namely wanting curved is contrary with last angular direction.Whether effect is herein used for when bend pipe 1 checking the direction of bend pipe 1 correct.
When pipe diameter is less, the method for above-mentioned rotation arc length determination dihedral angle is utilized to have error, because pipe diameter little rotation arc length is also little, so easily produce error.We are through carefully studying, and have invented again and have measured projected angle to determine the method for dihedral angle.Pass through formula
, can calculate projected angle, its principle as shown in Figure 9.
As shown in Figure 10, carry out angular templet 4 by projected angle, during measurement, along measured place bend pipe 1 center line put angular templet 4 well and and horizontal plane, then level meter 3 is placed on angular templet 4, when the bubble of level meter 3 is at center, then illustrates that angle is qualified.
Claims (2)
1. simplify a process for space bent pipe processing, it is characterized in that step is as follows:
First draw straight line in the fixture block central horizontal position of bending die as bending die datum line;
The bend pipe bending machine of curved good elbow is clamped, and elbow is adjusted to horizontal level;
Draw a horizontal line section at the above-mentioned bend pipe straight section upper clamp position place adjusting horizontal level, as bend pipe datum line, and overlap with the bending die datum line end points that bending die marks;
Rotate arc length according to formulae discovery again and determine another plan-position, calculate and rotate arc length L,
Formula is:
L is for rotating arc length, and D is tube outer diameter, and θ is dihedral angle, calculates with θ when θ≤90 °; Then use as θ > 90 °
in generation, enters in formula to calculate;
With the bend pipe datum line that bend pipe is finished for benchmark, measure the arc length L that need rotate with tape measure, and draw a straightway as mark line;
The mark line finished is turned to and overlaps with bending die datum line;
Bend pipe is carried out after adjustment.
2. the process of simplification space bent pipe processing according to claim 1, is characterized in that, when bend pipe diameter is less, utilize the method for above-mentioned rotation arc length determination dihedral angle to have error, therefore determining dihedral angle by measuring projected angle, passing through formula
, calculate projected angle; Make angular templet by projected angle, during measurement, along measured place bend pipe center line put angular templet and and horizontal plane, then level meter is placed on angular templet, when the bubble of level meter is at center, then illustrates that bend pipe angle is qualified.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410217474.1A CN104001763B (en) | 2014-05-22 | 2014-05-22 | Simplify the process of space bent pipe processing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410217474.1A CN104001763B (en) | 2014-05-22 | 2014-05-22 | Simplify the process of space bent pipe processing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104001763A CN104001763A (en) | 2014-08-27 |
| CN104001763B true CN104001763B (en) | 2015-12-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410217474.1A Active CN104001763B (en) | 2014-05-22 | 2014-05-22 | Simplify the process of space bent pipe processing |
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Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2028183B (en) * | 1978-08-11 | 1982-04-28 | Arnfield Ltd J & E | Method and appratus for forming a helical gear pump or motor rotor |
| DE102011051057A1 (en) * | 2011-06-14 | 2012-09-06 | Muhr Und Bender Kg | Method for manufacturing tube for exhaust systems of motor vehicles, involves generating regions of higher thickness and other regions of lower thickness in longitudinal direction of strip material |
| CN202290907U (en) * | 2011-09-08 | 2012-07-04 | 广东启光钢结构有限公司 | Three-dimensional pipe bending machine |
| CN102632119B (en) * | 2012-04-09 | 2014-03-12 | 浙江东南网架股份有限公司 | Large-diameter thick-wall round steel pipe spatial bending manufacturing method and special detection jig frame thereof |
| CN202741520U (en) * | 2012-09-18 | 2013-02-20 | 房县诚信汽配有限责任公司 | Combined universal angle positioning device |
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Address after: 331700 Jinxian Economic Development Zone, Jiangxi, Nanchang Patentee after: Jiang Lian heavy industry group Limited by Share Ltd Address before: 330000 Nanchang national high tech Industrial Development Zone, Jiangxi torch street, No. 125 Patentee before: Jianglian Heavy Industry Co., Ltd. |