Special tool for blanking and lofting flange blank

Abstract

The utility model discloses a special tool for blanking and lofting of a flange blank. The special tool comprises a base, a positioning rod, a steering rod and a line drawing rod, the positioning rod is detachably arranged on the base in the vertical direction; the steering rod is perpendicular to the positioning rod, one end of the steering rod is connected to the positioning rod in a sleeving mode, the steering rod can rotate around the positioning rod in the circumferential direction, and scale marks are arranged on the steering rod in the axial direction; the line drawing rod is perpendicular to the steering rod, one end of the line drawing rod is connected to the steering rod in a sleeved mode, the position of the line drawing rod in the axial direction of the steering rod is adjustable, and a tip is arranged at the other end of the line drawing rod. The tool is simple in structure, low in cost and convenient to use, the blanking and lofting efficiency of the flange blank can be improved, the lofting size precision is high, and meanwhile the labor intensity is low in the blanking and lofting link of large-batch blanks of different specifications; by adopting the detachable structural design, the tool is convenient to assemble, disassemble, carry and store.

Description

Technical Field

[0001] The utility model relates to the technical field of lofting tools, in particular to a special tool for blanking and lofting flange blanks. Background Art

[0002] Flange connections are a type of detachable connection and are widely used in the manufacture, installation, and maintenance of nuclear power equipment. For small batches of flanges required during production, flange blanks are typically fabricated on-site based on actual needs and then machined. The flange blank production process begins with selecting a steel plate that meets the design specifications. The flange blank dimensions are then drawn on the plate (with a 5mm machining allowance). The flange blank is then cut using cutting techniques, and finally, a qualified flange is produced through machining.

[0003] The accuracy of flange blank dimensional layout is particularly important for subsequent flange machining. The current flange blank layout method used on-site is to first determine the center of the circle on the steel plate to be cut, then use a steel ruler to measure the radius of the flange to be cut, use a string (the length of the string replaces the flange radius) to draw a circular cutting mark line, and finally use cutting technology to complete the flange blank cutting. This operation requires at least two people to work together, with high labor costs and slow speed. The flange blank dimensional accuracy is low, and the layout process is labor-intensive and difficult to produce for large quantities of different specifications. Currently, there are no dedicated tools on the market for flange blank cutting and layout. Utility Model Content

[0004] The purpose of the utility model is to solve the problems of low efficiency in flange blanking and lofting, low precision in lofting dimensions, and high labor intensity in the lofting process for blanking a large number of blanks of different specifications, and to provide a special tool for flange blanking and lofting. The tool has a simple structure, low cost, and is easy to use, so that flange blanking and lofting can be carried out with high efficiency, high precision, and low intensity.

[0005] The utility model is achieved through the following technical solutions:

[0006] The utility model provides a special tool for flange blank cutting and layout, comprising a base, a positioning rod, a steering rod and a marking rod; the positioning rod is detachably arranged on the base along the vertical direction; the steering rod is perpendicular to the positioning rod, one end of the steering rod is sleeved on the positioning rod, and the steering rod can rotate circumferentially around the positioning rod, and scale lines are arranged axially on the steering rod; the marking rod is perpendicular to the steering rod, one end of the marking rod is sleeved on the steering rod, and the position of the marking rod along the axial direction of the steering rod is adjustable, and the other end of the marking rod is provided with a pointed head.

[0007] As a preferred solution of the present invention, the position of the steering rod along the axial direction of the positioning rod is adjustable.

[0008] As a preferred solution of the present invention, a first circular hole is provided at one end of the steering rod, and the first circular hole is sleeved on the positioning rod; two first limiting sleeves are sleeved on the positioning rod, and the two first limiting sleeves are respectively located on both sides of the steering rod axis.

[0009] As a preferred solution of the present invention, the position of the first limiting sleeve along the axial direction of the positioning rod is adjustable, and a positioning screw is radially provided on the first limiting sleeve.

[0010] As a preferred solution of the present invention, the line drawing rod can rotate circumferentially around the steering rod.

[0011] As a preferred solution of the present invention, a second circular hole is provided at one end of the drawing rod, and the second circular hole is sleeved on the steering rod; two second limiting sleeves are sleeved on the steering rod, and the two second limiting sleeves are respectively located on both sides of the axis of the drawing rod, and positioning screws are radially provided on the second limiting sleeves.

[0012] As a preferred solution of the present invention, a threaded section is provided at the lower end of the positioning rod, and a threaded hole matching the threaded section is provided on the base.

[0013] As a preferred solution of the present invention, the base is disc-shaped, and the center of the base coincides with the axis of the positioning rod.

[0014] As a preferred solution of the present invention, the rod bodies of the positioning rod and the steering rod have the same diameter.

[0015] As a preferred solution of the present invention, the scale lines on the steering rod range from 0 to 1200 mm.

[0016] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0017] 1. The tool has a simple structure, low cost and is easy to use. You only need to rotate the marking rod around the positioning rod to draw the flange layout marking line. This can improve the efficiency of flange blank setting out and has high precision in setting out dimensions. At the same time, it reduces the labor intensity in the setting out of large quantities of blanks of different specifications.

[0018] 2. The position of the steering rod along the axial direction of the positioning rod in this tool is adjustable. In this way, when the marking rod is worn or shortened by grinding, the height of the steering rod from the base can be adjusted to adapt. At the same time, when the base placement surface and the marking surface are not on the same plane, the height of the steering rod from the base can also be adjusted to adapt without replacing the marking rod.

[0019] 3. The marking rod in this tool can rotate around the steering rod, so that the rod can be at a suitable tilt angle when drawing, which is convenient for drawing. At the same time, when the tip of the lower end of the marking rod encounters local unevenness on the material surface, the drawing rod can be rotated appropriately to adapt to it, ensuring that the marking line can be drawn on all the uneven areas, thus eliminating the need to adjust the height of the steering rod from the base.

[0020] 4. The tool has a detachable structure, which makes it easy to assemble and disassemble, carry and store. It can be used for blanking and setting out operations of flange blanks ranging from Φ100mm to Φ2400mm. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the following briefly introduces the drawings required for use in the examples. It should be understood that the following drawings only illustrate certain embodiments of the present invention and should not be considered as limiting the scope. A person of ordinary skill in the art can also derive other relevant drawings based on these drawings without inventive effort. In the drawings:

[0022] Figure 1 This is a schematic diagram of a special tool for blanking and setting out flange blanks in the present invention;

[0023] Figure 2 This is a schematic top view of the steering rod in the present invention;

[0024] Figure 3 It is a right side schematic diagram of the line drawing rod in the present utility model;

[0025] Figure 4 This is a schematic cross-sectional view of the limit sleeve and positioning screw combination in the present utility model.

[0026] Markings and corresponding parts names in the accompanying drawings:

[0027] 1-base, 2-positioning rod, 3-steering rod, 31-first circular hole, 32-scale line, 4-drawing rod, 41-second circular hole, 42-pointed head, 5-first limiting sleeve, 6-second limiting sleeve, 7-positioning screw. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with embodiments and drawings. The schematic implementation methods of the present invention and their descriptions are only used to explain the present invention and are not intended to limit the present invention.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0030] In the description of the embodiments of the present application, technical terms such as "first" and "second" are only used to distinguish different objects and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features.

[0031] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0032] In the description of the embodiments of this application, the term "and / or" is simply a description of the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent the following three situations: A exists, A and B exist at the same time, and B exists. In addition, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0033] In the embodiments of this application, the same reference numerals represent the same components, and for the sake of brevity, detailed descriptions of the same components in different embodiments are omitted. It should be understood that the thickness, length, width, and other dimensions of the various components in the embodiments of this application, as well as the overall thickness, length, width, and other dimensions of the integrated device shown in the drawings are merely illustrative and should not constitute any limitation on this application.

[0034] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces), unless otherwise clearly and specifically defined.

[0035] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0036] In the description of the embodiments of the present application, unless otherwise expressly specified or limited, technical terms such as "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; internal connections between two components or interactions between two components. Those skilled in the art can understand the specific meanings of the above terms in the embodiments of the present application based on specific circumstances.

[0037] Please refer to Figures 1 to 4 , a special tool for flange blank cutting and layout provided in an embodiment of the present application includes a base 1, a positioning rod 2, a steering rod 3 and a drawing rod 4; the positioning rod 2 is detachably arranged on the base 1 along the vertical direction; the steering rod 3 is perpendicular to the positioning rod 2, one end of the steering rod 3 is sleeved on the positioning rod 2, and the steering rod 3 can rotate circumferentially around the positioning rod 2, and a scale line 32 is axially arranged on the steering rod 3; the drawing rod 4 is perpendicular to the steering rod 3, one end of the drawing rod 4 is sleeved on the steering rod 3, and the position of the drawing rod 4 along the axial direction of the steering rod 3 is adjustable, and the other end of the drawing rod 4 is provided with a pointed head 42.

[0038] In this embodiment, the base 1 is disc-shaped and serves as the installation base for the remaining parts of the tool. The positioning rod 2 is a round rod structure, and its lower end is connected to the base 1. The positioning rod 2 serves as the installation and rotation base of the steering rod 3. The steering rod 3 is a round rod structure, and its left end is connected to the positioning rod 2. The steering rod 3 serves as the installation and movement base of the drawing rod 4. The drawing rod 4 is a plate-like structure, and its upper end is connected to the steering rod 3, and the lower end is designed as a pointed head 42, which is used to contact the surface of the plate to draw lines. The drawing tip 42 of the drawing rod 4 can be machined or polished to make it sharp after being worn during use, and a plurality of different drawing rods 4 can also be equipped.

[0039] The tool in this embodiment is provided with a base 1, a positioning rod 2, a steering rod 3 and a marking rod 4. The tool has a simple structure, low cost and is easy to use. It only needs to be placed on the plate so that the tip 42 of the marking rod 4 contacts the plate, and then the marking rod 4 is rotated one circle around the positioning rod 2 to draw the flange layout mark line. No other auxiliary tools are required to determine the layout mark line. This can improve the efficiency of flange blanking and layout, and achieve high layout dimensional accuracy. At the same time, the labor intensity is reduced in the process of blanking and layout of large quantities of blanks of different specifications. The tool adopts a disassembly structure design, which makes the tool easy to assemble and disassemble, easy to carry and easy to store. For example, after use, it can be disassembled into separate parts and put into a special tool bag for easy carrying. It can be reassembled at any time when used again.

[0040] According to some embodiments of the present application, the position of the steering rod 3 along the axial direction of the positioning rod 2 is adjustable. Since the position of the steering rod 3 along the axial direction of the positioning rod 2 is adjustable, when the drawing rod 4 is worn or shortened due to grinding, the height of the steering rod 3 from the base 1 can be adjusted to adapt. At the same time, when the placement surface of the base 1 and the drawing surface are not on the same plane, the height of the steering rod 3 from the base 1 can also be adjusted to adapt, in which case there is no need to replace the drawing rod 4 with a different length.

[0041] According to some embodiments of the present application, a first circular hole 31 is provided at one end of the steering rod 3, and the first circular hole 31 is sleeved on the positioning rod 2. Two first position-limiting sleeves 5 are sleeved on the positioning rod 2, and the two first position-limiting sleeves 5 are respectively located on either side of the axis of the steering rod 3. Because the steering rod 3 is connected to the positioning rod 2 via the first circular hole 31, and the upper and lower sides of the steering rod 3 are blocked and limited by the two first position-limiting sleeves 5, the steering rod 3 can be rotated around the positioning rod 2 to draw lines; by changing the position of the two first position-limiting sleeves 5 on the positioning rod 2, the axial position of the steering rod 3 relative to the positioning rod 2 can be adjusted.

[0042] According to some embodiments of the present application, the position of the first limiting sleeve 5 along the axial direction of the positioning rod 2 is adjustable, and a positioning screw 7 is radially provided on the first limiting sleeve 5. When adjusting the height of the steering rod 3, the first limiting sleeve 5 is slid axially along the positioning rod 2. After adjusting to the appropriate height, the positioning screw 7 is screwed in to tighten it against the positioning rod 2, thereby locking the first limiting sleeve 5 on the positioning rod 2, ensuring that the height of the steering rod 3 remains unchanged when drawing a line.

[0043] According to some embodiments of the present application, the line drawing rod 4 can rotate circumferentially around the steering rod 3. Since the line drawing rod 4 can rotate circumferentially around the steering rod 3, the line drawing rod 4 can be at a suitable tilt angle when drawing, which facilitates the line drawing operation. At the same time, during the line drawing process, when the tip 42 at the lower end of the line drawing rod 4 encounters local unevenness on the material surface, the line drawing rod 4 can be rotated appropriately to adapt to the uneven area, ensuring that the marking line can be drawn on all the uneven areas. In this case, there is no need to adjust the installation height of the steering rod 3.

[0044] According to some embodiments of the present application, a second circular hole 41 is provided at one end of the marking rod 4, and the second circular hole 41 is sleeved on the steering rod 3; two second limiting sleeves 6 are sleeved on the steering rod 3, and the two second limiting sleeves 6 are respectively located on both sides of the axis of the marking rod 4, and the second limiting sleeves 6 are radially provided with positioning screws 7. Because the marking rod 4 is connected to the steering rod 3 through the second circular hole 41, and the two sides of the marking rod 4 are blocked and limited by the two second limiting sleeves 6, the axial position of the marking rod 4 on the steering rod 3 is ensured to remain unchanged during the marking process; when the marking radius needs to be adjusted, the second limiting sleeve 6 is slid axially along the steering rod 3, and after adjusting to the appropriate height, it is tightened against the steering rod 3 by screwing in the positioning screws 7.

[0045] According to some embodiments of the present application, the lower end of the positioning rod 2 is provided with a threaded section, and the base 1 is provided with a threaded hole that matches the threaded section. During installation, the threaded section at the lower end of the positioning rod 2 is screwed into the threaded hole on the base 1, thereby achieving a detachable connection between the positioning rod 2 and the base 1, facilitating assembly and disassembly of the two.

[0046] According to some embodiments of the present application, the center of the base 1 coincides with the axis of the positioning rod 2. Since the axis of the positioning rod 2 coincides with the center of the base 1, this center is also the rotation center of the steering rod 3 and the center of the flange blank after the layout is completed, which makes it easier to determine the placement position of the base 1 during operation.

[0047] According to some embodiments of the present application, the positioning rod 2 and the steering rod 3 have the same rod diameter. Since the positioning rod 2 and the steering rod 3 have the same rod diameter, the first limiting sleeve 5 and the second limiting sleeve 6 can be used interchangeably without having to distinguish between them, making assembly and disassembly of the tool more convenient.

[0048] According to some embodiments of the present application, the scale line 32 on the steering rod 3 ranges from 0 to 1200 mm. Since the diameter of the base 1 is 100 mm, the tool can be used for blanking and setting out flange blanks with a diameter of 100 mm to 2400 mm.

[0049] The process and method of using the tool are as follows: 1) Assemble the base 1, the positioning rod 2, the steering rod 3, and the first limiting sleeve 5. Fix the first limiting sleeve 5 with a positioning screw 7, and debug the steering rod 3 to allow it to rotate 360° with the positioning rod 2 as the center. After qualified debugging, install the second limiting sleeve 6 and the marking rod 4 on the steering rod 3. 2) According to the required flange layout size, determine the position of the marking rod 4 through the scale line 32 on the steering rod 3, and limit the marking rod 4 through the second limiting sleeve 6 on both sides of the marking rod 4. The second limiting sleeve 6 is also fixed with a positioning screw 7, and the marking rod 4 can be tilted. 3) The marking rod 4 is centered on the positioning rod 2 on the steering rod 3, and the position of the marking rod 4 at the size scale value of the steering rod 3 is a radius of 360° to draw the flange layout identification line. The marking rod 4 can rotate clockwise or counterclockwise around the positioning rod 2 on the steering rod 3. 4) Cut the flange blank.

[0050] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above description is only a specific implementation method of the utility model and is not intended to limit the scope of protection of the utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the utility model should be included in the scope of protection of the utility model.

Claims

1. A special tool for blanking and setting out flange blanks, characterized in that: It includes a base, a positioning rod, a steering rod and a marking rod; the positioning rod is detachably arranged on the base along the vertical direction; the steering rod is perpendicular to the positioning rod, one end of the steering rod is sleeved on the positioning rod, and the steering rod can rotate circumferentially around the positioning rod, and scale lines are arranged axially on the steering rod; the marking rod is perpendicular to the steering rod, one end of the drawing rod is sleeved on the steering rod, and the position of the drawing rod along the axial direction of the steering rod is adjustable, and the other end of the drawing rod is provided with a pointed head.

2. The flange blank setting-out special tool according to claim 1 is characterized in that: The position of the steering rod along the axial direction of the positioning rod is adjustable.

3. The flange blank setting-out special tool according to claim 2, characterized in that: A first circular hole is provided at one end of the steering rod, and the first circular hole is sleeved on the positioning rod; two first limiting sleeves are sleeved on the positioning rod, and the two first limiting sleeves are respectively located on both sides of the steering rod axis.

4. The flange blank setting-out special tool according to claim 3 is characterized in that: The position of the first limiting sleeve along the axial direction of the positioning rod is adjustable, and a positioning screw is radially arranged on the first limiting sleeve.

5. The flange blanking and setting-out special tool according to any one of claims 1 to 4, characterized in that: The line drawing rod can rotate circumferentially around the steering rod.

6. The flange blank setting-out special tool according to claim 5, characterized in that: A second circular hole is provided at one end of the drawing rod, and the second circular hole is sleeved on the steering rod; two second limiting sleeves are sleeved on the steering rod, and the two second limiting sleeves are respectively located on both sides of the axis of the drawing rod, and positioning screws are radially provided on the second limiting sleeves.

7. The flange blank setting-out special tool according to any one of claims 1 to 4, characterized in that: The lower end of the positioning rod is provided with a threaded section, and the base is provided with a threaded hole matched with the threaded section.

8. The flange blank setting-out special tool according to claim 7, characterized in that: The base is disc-shaped, and the center of the base coincides with the axis of the positioning rod.

9. The flange blank blanking and setting-out special tool according to any one of claims 1 to 4, characterized in that: The rod bodies of the positioning rod and the steering rod have the same diameter.

10. The flange blank blanking and setting-out special tool according to any one of claims 1 to 4, characterized in that: The scale lines on the steering rod range from 0 to 1200 mm.

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