CN210650647U - Curved surface part chord length location marking off frock - Google Patents
Curved surface part chord length location marking off frock Download PDFInfo
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- CN210650647U CN210650647U CN201921055389.4U CN201921055389U CN210650647U CN 210650647 U CN210650647 U CN 210650647U CN 201921055389 U CN201921055389 U CN 201921055389U CN 210650647 U CN210650647 U CN 210650647U
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Abstract
The utility model relates to a curved surface part chord length positioning and marking tool, which comprises a transverse main rod (4) with scales, a central support rod (8) arranged on the transverse main rod and marking pins (2) arranged at two sides of the central support rod; the horizontal position and the vertical height of the scriber on the horizontal main rod are both adjustable. When the marking pen is used, the lower end of the central supporting rod corresponds to the design central point of the curved surface part, the lower ends of the left marking pen and the right marking pen are used for searching and positioning the position of the center of a hole, and the position, on the outer wall of the curved surface part, of the lower end of the marking pen is the center point of the hole after proper operation. The three-point positioning mode has simple and quick operation process, and reduces the time waste in the corresponding process of the reciprocating arc length and the chord length conversion; and the utility model discloses stopped the crooked error influence that causes of mobile jib, positioning accuracy is high. The utility model is suitable for a large-scale curved surface part's is rule and is measured in the pressure vessel manufacture trade, has simplified chord length location marking off step, has improved the marking off precision.
Description
Technical Field
The utility model relates to a container manufacturing technology field especially relates to a curved surface part chord length location marking off frock.
Background
In the pressure vessel manufacturing industry, with the development of the large-scale pressure vessel, the marking and the opening of large curved surface parts are more and more. In general, a drawing is marked with the center distance chord length between a reference circle center and an opening circle center, a corresponding arc length is calculated through basic size conversion in a scribing process, then a positioning point of the opening circle center is determined through the arc length, and due to the existence of a forming error of a curved surface part, the requirement of the center distance chord length of the drawing cannot be guaranteed under general conditions.
The traditional solution is as follows: the main rod of the ground gauge is bent into a certain radian which tends to a curved surface part, the positioning size is measured by the ground gauge, the length of the drawn arc is adjusted, the drawing size is checked, and the center of the drawing hole is finally determined. However, this method has the following disadvantages:
1. the ground gage bending rod has poor rigidity and inaccurate positioning position in the measuring process.
2. In the moving process after positioning, the ground gauge bending rod is easy to deform, and the size measurement is inaccurate.
3. The marking process is repeatedly measured and adjusted, and the marking efficiency is low.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a curved surface part chord length location marking off frock that the location is marked off accurately, quick is provided.
In order to solve the above problems, the utility model discloses a curved surface part chord length positioning scribing tool, which comprises a horizontal main rod with scales, a central support rod vertically penetrating the horizontal main rod and scribing needles arranged on two sides of the central support rod; the horizontal position and the vertical height of the scriber on the horizontal main rod are both adjustable; when the marking tool is used, the lower end part of the central supporting rod corresponds to the design central point of the curved surface part, and the lower end parts of the left and right scribes are used for searching and positioning the circle center position of the opening.
Preferably, a through slide way for the scriber to move left and right is formed in the transverse main rod, the scriber penetrates through the through slide way and penetrates through a sleeve to be sleeved on the upper surface and the lower surface of a sliding sleeve on the transverse main rod, and the vertical height of the scriber is adjusted by vertically adjusting the sliding sleeve.
Preferably, one side that the marking awl kept away from the marking head is equipped with the nut of adjusting vertical position, and one side cover that is close to the marking head is equipped with the spring, the spring upper end with the sliding sleeve lower surface is connected, and the lower extreme is by establishing the gasket of marking awl is connected.
Preferably, the sleeve wall of the sliding sleeve is provided with a fastening bolt with a front end capable of abutting against the outer wall of the transverse main rod in a penetrating manner.
Preferably, the central strut is vertically height-adjustable on the transverse main rod.
Preferably, the central supporting rod is arranged on a zero scale mark of the transverse main rod, and scales are symmetrically increased and extended from the zero scale mark to the left side and the right side.
Compared with the prior art, the utility model has the following advantage:
1. the utility model discloses a horizontal mobile jib, central branch and scriber, during the use, the lower tip of central branch corresponds the design central point of curved surface part, controls the lower tip of both sides scriber and is used for looking for and fix a position trompil centre of a circle position, when controlling between the scriber of both sides apart from the trompil chord length that is the drawing requirement and both and central branch highly uniform, the position that the tip falls on the curved surface part outer wall under the scriber is trompil centre of a circle point promptly. The three-point positioning mode has simple and quick operation process, and reduces the time waste in the corresponding process of the reciprocating arc length and the chord length conversion; and the utility model discloses stopped the crooked error influence that causes of mobile jib, guaranteed the positioning accuracy of drawing a line trompil chord length size, positioning accuracy is high.
2. The utility model is suitable for a large-scale curved surface part's is rule and is measured in the pressure vessel manufacture trade, has simplified chord length location marking off step, has improved the marking off precision.
Drawings
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Fig. 1 is the structural schematic diagram of the middle curved surface part chord length positioning and scribing tool of the present invention.
Fig. 2 is a top view of fig. 1.
Fig. 3 is a schematic structural view of the middle sliding sleeve of the present invention.
3 fig. 3 4 3 is 3 a 3 sectional 3 view 3 taken 3 along 3 line 3 a 3- 3 a 3 in 3 fig. 3 3 3. 3
In the figure: the novel drawing pin comprises a nut 1, a drawing pin 2, a sliding sleeve 3, a transverse main rod 4, a spring 5, a gasket 6, a fastening bolt 7, a central supporting rod 8, a through slideway 9 and a curved surface part 10.
Detailed Description
Referring to fig. 1 to 4, an embodiment of the present invention provides a curved surface part chord length positioning and scribing tool, which mainly includes a horizontal main rod 4 with scales, a central support rod 8 vertically penetrating the horizontal main rod 4, and scribes 2 disposed on two sides of the central support rod 8; the horizontal position and the vertical height of the scriber 2 on the horizontal main rod 4 are both adjustable. When the marking tool is used, the lower end part of the central supporting rod 8 corresponds to the design central point of the curved surface part 10, and the lower end parts of the left and right scribes 2 are used for searching and positioning the circle center positions of the holes. The central supporting rod 8 and the lower end part of the scriber 2 are both arranged in a sharp needle shape, the position of the sharp end part of the central supporting rod 8 on the outer wall of the curved part 10 is favorably fixed, and the sharp end part of the scriber 2 can also be used for scribing.
The horizontal main rod 4 is provided with a through slide way 9 for the scriber 2 to move left and right, the scriber 2 penetrates through the through slide way 9 and penetrates through the upper surface and the lower surface of the sliding sleeve 3 sleeved on the horizontal main rod 4, and the vertical height of the scriber 2 is adjusted by adjusting the upper surface and the lower surface of the sliding sleeve 3. The sliding sleeve 3 can move left and right on the transverse main rod 4, and the scriber 2 on the sliding sleeve moves left and right synchronously.
The scales on the transverse main rod 4 are arranged on the front side and/or the rear side of the transverse main rod, the central support rod 8 is arranged on the zero scale mark of the transverse main rod 4, and the scales symmetrically increase and extend from the zero scale mark to the left side and the right side.
One side that scriber 2 kept away from the scratch head is equipped with the nut 1 (the external screw thread that has the cooperation to use on the scriber 2) of adjusting vertical position, and one side cover that is close to the scratch head is equipped with spring 5, and the spring 5 upper end is connected with 3 lower surfaces of sliding sleeve, and the lower extreme is connected by the gasket 6 of establishing at scriber 2. Wherein, the effect of spring 5 is supplementary intensity that increases between sliding sleeve 3 and the scriber 2, reduces the fit clearance.
The sleeve wall of the sliding sleeve 3 is provided with a fastening bolt 7 with the front end capable of abutting against the outer wall of the transverse main rod 4. The fastening bolts 7 on the left sliding sleeve 3 and the right sliding sleeve 3 are arranged on the same side, for example, on the front side of the sliding sleeves 3. When the movable support needs to move left and right, the movable support is unscrewed outwards, and when the fixed position is needed, the movable support is screwed inwards, so that the front end of the movable support tightly abuts against the outer wall of the transverse main rod 4.
Further, the central strut 8 is vertically height adjustable on the transverse main bar 4. Under the condition that the total length of the scriber 2 is not changed, different radian fall amounts on different curved surface parts 10 are convenient to adapt. In particular, the height adjustment of the central strut 8 on the transverse main rod 4 is achieved by means of a nut and an external thread which are used in cooperation.
In the actual scribing process, the use method refers to the following contents:
(1) and (3) adjusting the left and right distances of the scribes 2 on the two sides according to the hole opening chord length required by the drawing to ensure that the sizes of the scribes meet the requirements of the drawing, and fixing the left and right positions of the scribes 2.
(2) The lower end of the central strut 8 is positioned to the design central point on the curved part 10, and the position of the central strut on the curved part 10 is kept unchanged.
(3) The height of the scribes on the two sides is adjusted through the falling difference on the curved surface part 10, so that the lower end parts of the scribes 2 on the left and right sides fall on the outer wall of the curved surface part 10, and simultaneously the scribes 2 on the left and right sides and the central strut 8 are at the same height (namely, under the condition that the height of the central strut 8 is fixed, the height of the left and right sides is adjusted to enable the transverse main rod 4 to be parallel to the tangent line at the designed central point), and the height position of the scribes 2 is fixed.
(4) At this time, the position where the lower end of the scriber 2 falls on the outer wall of the curved part 10 is the center point of the hole, and then the normal scribing operation is performed.
The technical scheme provided by the utility model is introduced in detail above. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the structure and core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (6)
1. The positioning and scribing tool for the chord length of the curved surface part is characterized by comprising a transverse main rod (4) with scales, a central support rod (8) and scribes (2), wherein the central support rod (8) is vertically arranged on the transverse main rod (4) in a penetrating mode, and the scribes (2) are arranged on two sides of the central support rod (8); the horizontal position and the vertical height of the scriber (2) on the horizontal main rod (4) are both adjustable; when the marking tool is used, the lower end part of the central supporting rod corresponds to the design central point of the curved surface part, and the lower end parts of the left and right scribes are used for searching and positioning the circle center position of the opening.
2. The positioning and marking tool according to claim 1, characterized in that the transverse main rod (4) is provided with a through slide way (9) for the marking pin (2) to move left and right, the marking pin (2) passes through the through slide way (9) and passes through the upper and lower surfaces of a sliding sleeve (3) sleeved on the transverse main rod (4), and the marking pin (2) is adjusted in vertical height through the up and down adjustment on the sliding sleeve (3).
3. The positioning and marking tool according to claim 2, characterized in that a nut (1) for adjusting the vertical position is arranged on one side of the marking pin (2) far away from the marking head, a spring (5) is sleeved on one side of the marking pin close to the marking head, the upper end of the spring (5) is connected with the lower surface of the sliding sleeve (3), and the lower end of the spring is connected with a gasket (6) arranged on the marking pin (2).
4. The positioning and line marking tool according to claim 2, wherein a fastening bolt (7) with a front end capable of abutting against the outer wall of the transverse main rod (4) is arranged on the sleeve wall of the sliding sleeve (3) in a penetrating manner.
5. The positioning and line marking tool as claimed in claim 1, characterized in that the vertical height of the central strut (8) on the transverse main rod (4) is adjustable.
6. The positioning and marking tool as claimed in claim 1, wherein the central strut (8) is arranged on a zero graduation line of the transverse main rod (4), and graduations symmetrically increase and extend from the zero graduation line to the left side and the right side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921055389.4U CN210650647U (en) | 2019-07-08 | 2019-07-08 | Curved surface part chord length location marking off frock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921055389.4U CN210650647U (en) | 2019-07-08 | 2019-07-08 | Curved surface part chord length location marking off frock |
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| Publication Number | Publication Date |
|---|---|
| CN210650647U true CN210650647U (en) | 2020-06-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921055389.4U Active CN210650647U (en) | 2019-07-08 | 2019-07-08 | Curved surface part chord length location marking off frock |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112223241A (en) * | 2020-10-23 | 2021-01-15 | 中船黄埔文冲船舶有限公司 | Scribing device and scribing method for bed plate on ship body |
| CN113458636A (en) * | 2021-06-23 | 2021-10-01 | 武汉一冶钢结构有限责任公司 | End socket positioning hole opening and connecting pipe installation method |
-
2019
- 2019-07-08 CN CN201921055389.4U patent/CN210650647U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112223241A (en) * | 2020-10-23 | 2021-01-15 | 中船黄埔文冲船舶有限公司 | Scribing device and scribing method for bed plate on ship body |
| CN113458636A (en) * | 2021-06-23 | 2021-10-01 | 武汉一冶钢结构有限责任公司 | End socket positioning hole opening and connecting pipe installation method |
| CN113458636B (en) * | 2021-06-23 | 2022-03-11 | 武汉一冶钢结构有限责任公司 | End socket positioning hole opening and connecting pipe installation method |
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Effective date of registration: 20230110 Address after: Baiyun Avenue, Industrial Park, Hami City, Xinjiang Uygur Autonomous Region, 839000 Patentee after: XINJIANG LANSHI REFITTING ENERGY ENGINEERING Co.,Ltd. Address before: No. 601, North Kunlunshan Road, Qingdao Economic and Technological Development Zone, Shandong Province 266426 Patentee before: QINGDAO LANSHI HEAVY MACHINERY EQUIPMENT Co.,Ltd. |