CN201109112Y - Positioning marking tool for major diameter arc - Google Patents
Positioning marking tool for major diameter arc Download PDFInfo
- Publication number
- CN201109112Y CN201109112Y CNU2007201991238U CN200720199123U CN201109112Y CN 201109112 Y CN201109112 Y CN 201109112Y CN U2007201991238 U CNU2007201991238 U CN U2007201991238U CN 200720199123 U CN200720199123 U CN 200720199123U CN 201109112 Y CN201109112 Y CN 201109112Y
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- slide block
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- positioning
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- 239000000463 material Substances 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 5
- 229910000838 Al alloy Inorganic materials 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
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Abstract
The utility model relates to a location marking tool of a large diameter circular arc, which mainly comprises a linear gauge bar, a center sliding block which is sleeved on the gauge bar, and a marking sliding block which is sleeved on the gauge bar. The center sliding block and the marking sliding block are respectively provided with holes which correspond to the cross section of the gauge bar, and the center sliding block and the marking sliding block are respectively provided with puller bolts which are perpendicular to the holes and support the gauge bar. The top of the center sliding block is provided with a locating pin, and the top of the marking sliding block is provided with a marking device. Utilizing the large location marking tool of the large diameter circular arc of the utility model can cause the marking operation simple and the precision to be improved greatly and finish the marking operation of large and ultra-large circular arcs conveniently, thereby greatly saving human and material resources and improving working efficiency.
Description
Technical Field
The utility model relates to a marking tool, in particular to a location marking tool for drawing large-scale circular arc, exactly relate to a compasses of drawing the circular arc particularly.
Background
The large-diameter cylindrical or spherical tank generally refers to a circular container having a diameter of tens of meters or even tens of meters, and both of them are composed of a circular casing. These round containers, whether pressure or gravity type, or double or single shell, such as gas, oil and coal storage tanks, impose high demands on the tank manufacturing equipment due to their excessive volume and weight. For these large circular bodies, the conventional manufacturing tools cannot meet the use requirements at all, or even if the use conditions can be met, the manufacturing accuracy is low, and on the other hand, the operation is complicated and the cost is high.
In the component engineering manufacturing practice of large cylindrical, conical and spherical tank bodies, circular and arc marking needs to be carried out in the whole manufacturing process, small components are marked by dividers, and large components are marked by soil normal line drawing and rotating. The prior art often adopts the two methods to solve the positioning and scribing operation of the large circular arc.
The first one is to draw a circle by using the traditional compasses, but when the traditional circular rail is used for drawing a circle, the supporting parts of the two compasses supports must be lifted, so that one end with a positioning needle is placed at the circle center, and one end with a scribing device is rotated to draw a line in a rotating way. The problem that has brought about like this is that because it lifts too much, it is difficult to carry out the marking operation of the large radius circular arc, or the circular arc that is marked is relatively poor in precision, can't satisfy the operation requirement.
The second method is to use a rope with a fixed length, fix one end at the circle center position, and set a marker at the other end to perform the marking operation. The following problems arise during scribing using this method: the rope must be tightened to ensure the regular circular arc is drawn in the drawing process, but the regular circular arc cannot be drawn when the large-diameter circular arc is drawn, and the method has the defects of low precision and small use times and incapability of being reused.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome above-mentioned prior art not enough, provide a location marking tool of major diameter circular arc for the marking off precision among the solution prior art is low, the operation is inconvenient and can not used repeatedly's problem. The positioning and marking tool for the large-diameter circular arc can accurately mark and position the circular arc or circle in the construction process of large cylindrical, circular or conical members, is convenient to use and operate, saves manpower and material resources, has high circular arc precision and can be repeatedly used.
Based on the above problems, our technical solution is as follows:
a positioning and marking tool for large-diameter arcs is characterized by mainly comprising a linear gauge rod, a circle center slide block sleeved on the gauge rod and a marking slide block sleeved on the gauge rod, wherein a hole corresponding to the cross section of the gauge rod is formed in each of the circle center slide block and the marking slide block, a jacking screw perpendicular to the hole and abutting against the gauge rod is arranged on each of the circle center slide block and the marking slide block, a positioning needle is arranged at the top end of each circle center slide block, and a marking device is arranged at the top end of each marking slide block.
In practical application, the gauge rod is made of straight-line materials which are easy to find, and the straight-line materials are limited by high strength and light weight, and pipes with rectangular cross sections, circular cross sections or oval cross sections are generally selected, and aluminum alloy materials are suitable.
As a more optimized design, scales are marked on the gauge rod, so that the distance between the circle center slide block and the marking slide block, namely the radius of the marked arc, can be conveniently calculated. Corresponding to the scales, the middle parts of the side surfaces of the circle center slide block and the scribing slide block are respectively provided with a slit for seeing the scales on the gauge rod.
As a further optimization of the above scheme, the circle center slide block is manufactured into a cylindrical body with a conical positioning needle, the hole is formed in the cylindrical position of the cylindrical body, and the jacking screw is arranged at the circle center of the cylindrical body and penetrates through the hole.
As a further optimization of the scheme, the scribing slider is manufactured into a cylindrical body with a frustum, the hole is formed in the cylindrical position of the cylindrical body, the center of the frustum is a round hole, the scribing device is placed in the round hole, and a fastening screw capable of being jacked on the scribing device is arranged on the side edge of the frustum.
The marking device on the marking slide block can be selected from ink-jet pens, pencils, chalks and other devices which can mark a workpiece during marking.
In order to make the positioning operation of the circle center slide block and the scribing slide block more concise and convenient, the end parts of the jacking screws on the circle center slide block and the scribing slide block are set to be butterfly-shaped ingot nuts.
The technical advantages of the utility model:
compared with the prior art, the positioning marking tool for the large-diameter circular arc has outstanding advantages that firstly, a hard gauge rod is adopted to replace a soft marking rope, and the line drawing and marking is changed into the track moving and marking, so that the marking operation is simple and easy, and the precision is greatly improved; secondly, because the circle center slide block and the marking slide block which can be positioned on the gauge rod in a sliding manner are adopted, the distance between the circle center slide block and the marking slide block can be adjusted according to the requirement, namely the radius of the marking tool can be adjusted, so that the marking tool can be repeatedly used; finally, the common compasses can finish the large-scale and ultra-large-scale arc marking operation only by one person, thereby greatly saving manpower and material resources and improving the working efficiency.
Drawings
Fig. 1 is a schematic structural view of the positioning and marking tool for large-diameter arcs of the present invention.
Fig. 2 is a sectional view of the circle center slide block in the positioning and marking tool for large-diameter arcs of the present invention, and the view is from a-a of fig. 1.
Fig. 3 is a structural sectional view of a scribing slider in the positioning scribing tool for a large-diameter arc of the present invention, and a view from B to B in fig. 1.
Fig. 4 is a view in the direction C of fig. 3.
Wherein,
1-gauge rod 2-circle center slide block 3-scribing slide block 4-scribing device
5-jacking screw 6-butterfly nut 7-positioning pin 8-end sealing plug
9-fastening screw
Detailed Description
The following provides a detailed description of the positioning and marking tool for large-diameter circular arcs according to the present invention with reference to the accompanying drawings and specific embodiments, which should not be construed as limiting the scope of the present invention.
The utility model discloses a marking off positioning tool of major diameter circular arc mainly plays the effect the same with the compasses as in the middle of large-scale circular device's the construction, and it utilizes the principle of circle to the fixed point is the centre of a circle, uses the fixed length to rotate around the centre of a circle as the radius and regard as the circumference with the marking off part moving trajectory in its outside. In order to realize the operation, the circular arc scribing tool must be provided with a circle center part which can be positioned at the circle center, and must also be provided with a scribing part which can display the motion track of the moving end of the circle center part, and the circle center part and the scribing part need to be fixed on a gauge body which plays a supporting role and has a radius. In order to meet the operation requirements of arcs with various radii, the circle center part and the scribing part are designed into a slide block type which can be freely positioned on the linear gauge body in a sliding mode. Based on the above principle and fig. 1, the specific operating components of the present invention are designed as follows:
the main structure of the positioning marking tool for the large-diameter circular arc mainly comprises a linear gauge bar 1, a circle center slide block 2 sleeved on the gauge bar 1 and a marking slide block 3 sleeved on the gauge bar 1. The circle center slide block 2 and the scribing slide block 3 are respectively provided with a hole corresponding to the cross section of the gauge rod 1, the gauge rod 1 penetrates through the opened hole, the inner diameter of the hole is slightly larger than the outer edge of the gauge rod 1, so that the circle center slide block 2 and the scribing slide block 3 can slide on the gauge rod 1 at will, namely, the distance between the circle center slide block 2 and the scribing slide block 3 can be adjusted at will in the length of the gauge rod 1, and the adjustability of the radius of the circular arc is met.
And a jacking screw 5 which is vertical to the hole and is propped against the gauge rod 1 is respectively arranged on the circle center slide block 2 and the scribing slide block 3. The tightening screw 5 is arranged to position the circle center slide block 2 and the scribing slide block 3 at any position of the gauge rod 1. When the centre of a circle slider 2 goes up the jack screw 5 and loosens and break away from the gauge rod 1, centre of a circle slider 2 can carry out position control, screws up jack screw 5 after the regulation is accomplished and fixes, and the regulation and the location of position also can utilize jack screw 5 to carry out to rule slider 3 in the same way.
The circle center slide block 2 is located at the circle center position of the arc when the arc is drawn, a positioning needle 7 is required to be arranged at the top end of the circle center slide block, the top end of the positioning needle 7 is sharp, the circle center slide block can be firmly fixed at the circle center position, and the position movement is avoided in the process of drawing the arc. As shown in fig. 2.
The scribing block 3 is a device for scribing an arc which can be recognized on a moving track when the arc is scribed, and a scribing device 4 is required to be installed at the top end of the scribing block 3, and in order to fix the scribing device on the scribing block 3, a fastening screw 9 is arranged on the scribing block 3, as shown in fig. 3 and 4.
Example 1
The following describes the present invention in detail with a scribing and positioning tool of a large-diameter circular arc of a specific structure. The structure of the utility model is as follows:
the main structure of the positioning marking tool for the large-diameter circular arc mainly comprises a linear gauge bar 1, a circle center slide block 2 sleeved on the gauge bar 1 and a marking slide block 3 sleeved on the gauge bar 1. The circle center slide block 2 and the scribing slide block 3 are respectively provided with a hole corresponding to the cross section of the gauge rod 1, the gauge rod 1 penetrates through the opened hole, the inner diameter of the hole is slightly larger than the outer edge of the gauge rod 1, so that the circle center slide block 2 and the scribing slide block 3 can slide on the gauge rod 1 at will, namely, the distance between the circle center slide block 2 and the scribing slide block 3 can be adjusted at will in the length of the gauge rod 1, and the adjustability of the radius of the circular arc is met.
The gauge rod 1 is an aluminum alloy pipe with a rectangular cross section, is thin in pipe wall, has the characteristics of light weight and high strength, and can be made of other similar parts. The straight line shaped aluminum alloy pipe is taken as the gauge bar 1, and after the positioning slide block 2 and the marking slide block 3 are sleeved on the slide bar 1, two end plugs 8 are respectively arranged at two ends of the gauge bar 1. The end plug 8 can prevent the two sliding blocks from sliding out of the gauge bar 1 during displacement, and can also ensure that an operator can keep safe during use and can not be scratched by a sharp part at the end.
The circle center slide block 2 is a cylindrical body with a conical positioning needle 7, the hole is formed in the cylindrical position of the cylindrical body, and the jacking screw 5 is arranged at the circle center of the cylindrical body and penetrates through the hole.
The marking slide block 3 is a cylindrical body with a frustum, the hole is formed in the cylindrical position of the cylindrical body, the center of the frustum is a circular hole, the marking device 4 is placed in the circular hole, and a fastening screw 9 capable of being jacked on the marking device 4 is arranged on the side edge of the frustum.
In order to conveniently rotate the jacking screw 5, the butterfly nut 6 is arranged on the jacking screw 5, and the jacking screw 5 can be simply and quickly tightened.
When the marking tool is used, firstly, the distance between the circle center slide block 2 and the marking slide block 3 is adjusted and then set as the radius length of a marked arc; then the positioning needle 7 of the circle center slide block 2 is arranged at a predetermined circle center position and pressed into a certain depth; the marking tool is rotated around the centre slide 2 from the distal end of the gauge bar 1, leaving a distinguishable mark on its path of travel, either ink or pencil or chalk, by the marking device 4 beneath the marking slide 2.
Example 2
The structure of the embodiment 2 is basically the same as that of the embodiment 1, except that scales are marked on the outer side of the gauge rod 1, and a device capable of indicating the positions of the circle center slide 2 and the scribing slide 3 is arranged on the circle center slide 2. The device has the specific structure that the middle parts of the side surfaces of the circle center slide block and the scribing slide block are respectively provided with a slit through which scales on the gauge rod can be seen. The slit on the circle center slide block is positioned in the middle of the side surface of the slide block, the scale on the gauge rod can be read from the slit, and the scale read from the slit is the scale where the positioning needle is positioned because the slit and the positioning needle of the circle center slide block are positioned on the same straight line. Similarly, the marking slide block is also provided with the same slit so as to ensure that the scale in the read slit is the scale of the marking device. Therefore, other length measuring equipment is not needed, and the marking tool can mark arcs with any radius.
It goes without saying that the positioning and marking tool for large-diameter circular arcs of the present invention may have other structural designs and component arrangements, and is not limited to the above-mentioned embodiments. In summary, the positioning and marking tool for large diameter circular arcs of the present invention also includes other modifications and alternatives that will be apparent to those skilled in the art.
Claims (7)
1. A positioning and marking tool for large-diameter arcs is characterized by comprising a linear gauge rod, a circle center slide block sleeved on the gauge rod and a marking slide block sleeved on the gauge rod, wherein a hole corresponding to the cross section of the gauge rod is formed in each of the circle center slide block and the marking slide block, a jacking screw perpendicular to the hole and abutting against the gauge rod is arranged on each of the circle center slide block and the marking slide block, a positioning needle is arranged at the top end of each circle center slide block, and a marking device is arranged at the top end of each marking slide block.
2. The tool of claim 1 wherein the cross-section of the gauge bar is either rectangular, circular or elliptical.
3. The tool for positioning and marking the large-diameter circular arc as claimed in claim 1 or 2, wherein the gauge rod is marked with scales, and the middle parts of the side surfaces of the circle center slide block and the marking slide block are respectively provided with a slit through which the scales on the gauge rod can be seen.
4. The tool for positioning and marking large-diameter circular arcs as claimed in claim 1 or 2, wherein the circle center slider is a cylindrical body with a conical positioning pin, the hole is formed in the cylindrical position of the cylindrical body, and the tightening screw is arranged at the circle center of the cylindrical body and penetrates through the hole.
5. The tool for positioning and marking large-diameter circular arcs as claimed in claim 4, wherein the scribing slider is a cylinder with a frustum, the hole is formed in the cylindrical position of the cylinder, the center of the frustum is a circular hole, the scribing device is placed in the circular hole, and a fastening screw capable of abutting against the scribing device is arranged on the side edge of the frustum.
6. The tool for positioning and marking large-diameter circular arcs as claimed in claim 5, wherein the marking device is either an ink-jet pen, a pencil or a chalk.
7. The tool for positioning and marking the large-diameter circular arc as claimed in claim 1, wherein the end of the tightening screw is a butterfly nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201991238U CN201109112Y (en) | 2007-12-12 | 2007-12-12 | Positioning marking tool for major diameter arc |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201991238U CN201109112Y (en) | 2007-12-12 | 2007-12-12 | Positioning marking tool for major diameter arc |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201109112Y true CN201109112Y (en) | 2008-09-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201991238U Expired - Lifetime CN201109112Y (en) | 2007-12-12 | 2007-12-12 | Positioning marking tool for major diameter arc |
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| Country | Link |
|---|---|
| CN (1) | CN201109112Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102806554A (en) * | 2012-06-14 | 2012-12-05 | 中联重科股份有限公司 | Positioning method and marking tool for crane counterweight positioning pin |
| CN102922503A (en) * | 2012-10-12 | 2013-02-13 | 新兴铸管股份有限公司 | Cantilever type circular arc marking device |
| CN103894999A (en) * | 2012-12-28 | 2014-07-02 | 南通大通宝富风机有限公司 | Arc scribing device |
| CN104132653A (en) * | 2014-08-13 | 2014-11-05 | 杭州铭品装饰工程有限公司 | Indoor decoration measurement paying-off device and paying-off method thereof |
| CN109895059A (en) * | 2017-12-08 | 2019-06-18 | 胡云 | A kind of carpentry decoration scriber |
| CN116900411A (en) * | 2023-08-22 | 2023-10-20 | 张家港宏昌钢板有限公司 | A circular plate cutting device |
-
2007
- 2007-12-12 CN CNU2007201991238U patent/CN201109112Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102806554A (en) * | 2012-06-14 | 2012-12-05 | 中联重科股份有限公司 | Positioning method and marking tool for crane counterweight positioning pin |
| CN102922503A (en) * | 2012-10-12 | 2013-02-13 | 新兴铸管股份有限公司 | Cantilever type circular arc marking device |
| CN103894999A (en) * | 2012-12-28 | 2014-07-02 | 南通大通宝富风机有限公司 | Arc scribing device |
| CN104132653A (en) * | 2014-08-13 | 2014-11-05 | 杭州铭品装饰工程有限公司 | Indoor decoration measurement paying-off device and paying-off method thereof |
| CN104132653B (en) * | 2014-08-13 | 2016-08-17 | 浙江铭品装饰工程有限公司 | Interior decoration surveying setting-out device and line-putting method thereof |
| CN109895059A (en) * | 2017-12-08 | 2019-06-18 | 胡云 | A kind of carpentry decoration scriber |
| CN116900411A (en) * | 2023-08-22 | 2023-10-20 | 张家港宏昌钢板有限公司 | A circular plate cutting device |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080903 |