A tool for assembling and clamping a special-shaped flange plate

Abstract

The utility model discloses a kind of for the tooling of group pair and clamping of special-shaped flange plate, including tooling mesa, further include: special-shaped positioning component, be in the center of the tooling mesa, the special-shaped positioning component includes the lower structure for supporting and transverse positioning to the special-shaped flange plate, and detachably be arranged on the upper structure of the lower structure, the upper structure is for the longitudinal limit of the special-shaped flange plate;And multiple positioning blocks, be arranged in the tooling mesa and distribute in the periphery of the special-shaped positioning component, the multiple positioning blocks include the first positioning block for the transverse or longitudinal limit of the special-shaped flange plate, and the second positioning block for the circumferential limit of the special-shaped flange plate.The utility model is through the synergic effect of center special-shaped positioning component and peripheral positioning block, effectively solved the problem that special-shaped flange plate is not accurate in present technical positioning, clamping is not stable, and general-purpose is poor.

Description

Technical Field

[0001] This utility model relates to the field of mechanical manufacturing, and in particular to a tooling for assembling and clamping irregularly shaped flanges. Background Technology

[0002] Flanges, as crucial components connecting pipelines, valves, pumps, and other equipment, are widely used in industries such as petroleum, chemical, power, metallurgy, and shipbuilding. With the continuous development of industrial technology, the types and shapes of flanges have become increasingly diverse, especially irregularly shaped flanges. Their complex shapes and irregular mounting hole positions place higher demands on processing and assembly. During equipment installation, maintenance, or manufacturing, precise assembly and clamping of flanges are often required to ensure the connection accuracy and sealing performance with corresponding components. Existing flange assembly tooling typically uses general-purpose or customized clamps, fixing them with bolts, pressure blocks, etc.

[0003] However, existing technologies still present several technical challenges for the assembly and clamping of irregularly shaped flanges. First, due to the irregular shape of these flanges, traditional general-purpose clamps often struggle to achieve precise and stable positioning and clamping, leading to inaccurate positioning and weak clamping, thus affecting assembly accuracy and work efficiency. Second, while customized clamps can meet the assembly requirements of specific irregularly shaped flanges, their design and manufacturing cycles are long and costly, and their poor versatility prevents them from adapting to flanges of different specifications and shapes, resulting in increased production costs and wasted resources. Furthermore, during assembly, operators need to frequently perform manual adjustments and alignment, which not only consumes significant time and effort but also increases the risk of inconsistent assembly quality due to human error, potentially posing safety hazards. Therefore, designing a tooling system capable of efficiently and accurately assembling and clamping irregularly shaped flanges is a pressing technical problem in current industrial production. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a tooling that can efficiently, accurately and stably assemble and clamp various irregular flanges, thereby improving production efficiency and assembly quality, in view of the shortcomings of existing irregular flange assembly tooling in terms of positioning accuracy, clamping stability, versatility and operating efficiency.

[0005] The technical solution adopted by this utility model to solve its technical problem is: A tooling for assembling and clamping irregularly shaped flanges, including a tooling table, and further comprising: An irregularly shaped positioning component, located at the center of the tooling table, includes a lower structure for supporting and laterally positioning the irregularly shaped flange, and an upper structure detachably disposed above the lower structure, the upper structure for longitudinally limiting the irregularly shaped flange; and Multiple positioning blocks are provided on the tooling table and distributed around the irregular positioning component. The multiple positioning blocks include a first positioning block for lateral or longitudinal limiting of the irregular flange and a second positioning block for circumferential limiting of the irregular flange.

[0006] Preferably, the lower structure is a circular body with multiple first through holes on its circumference, and the circular body is provided with at least one lateral limiting member for abutting against the outer edge of the irregular flange.

[0007] Preferably, the upper structure is a cross-shaped frame with multiple second through holes, and the cross-shaped frame is provided with at least one longitudinal limiting member for longitudinally limiting the irregular flange.

[0008] Preferably, the first positioning block is a rectangular positioning block and the second positioning block is a circular positioning block.

[0009] Preferably, the tooling platform is also equipped with multiple lifting points for lifting and moving the tooling as a whole.

[0010] Preferably, the tooling table surface is provided with at least one reference hole and equipped with a reference hole cover plate.

[0011] Preferably, it also includes a tooling stand for supporting the tooling table surface; the bottom of the legs of the tooling stand is provided with pads.

[0012] The beneficial effects of this utility model include the following: By setting a non-circular positioning component consisting of detachable upper and lower layers at the center of the tooling table, and cooperating with a first positioning block for horizontal and vertical limiting and a second positioning block for circumferential limiting around it, a multi-point, multi-directional composite positioning and clamping system with the center and periphery working in synergy is formed. This system achieves precise positioning and stable clamping of non-circular flanges from the center to the outer contour, effectively solving the problem of precise positioning and stable clamping of non-circular flanges, and significantly improving assembly accuracy and subsequent processing quality.

[0013] By designing the irregular positioning components as detachable modular parts and combining them with positioning blocks that can be flexibly arranged according to the workpiece contour, and by setting easy-to-operate handles on key components, a reconfigurable flexible clamping solution is formed. This enables the tooling to quickly adapt to and conveniently load and unload irregular flanges of different specifications and shapes, effectively solving the contradiction between the applicability and operational efficiency of the tooling, significantly reducing production preparation time and manufacturing costs, and enhancing the flexibility of the production line. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the tooling used for assembling and clamping irregularly shaped flanges in Example 1; Figure 2 This is a schematic diagram of the irregular flange workpiece in Example 1; Figure 3 This is a schematic diagram of the irregularly shaped positioning component in Example 1; Figure 4 This is a schematic diagram of the tooling used for assembling and clamping irregular flanges in Example 1.

[0015] Reference numerals: 1. Tooling stand; 101. Support leg; 102. Pad; 103. Connector; 2. Tooling table surface; 3. Eye bolt; 4. Reference hole cover plate; 5. Irregular positioning component; 6. Ring body; 7. First through hole; 8. First right-angle component; 9. First handle; 10. Cross-shaped frame; 11. Second through hole; 12. Second handle; 13. Second right-angle component; 14. Step structure; 15. Rectangular positioning block; 16. Circular positioning block. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments, but these specific embodiments do not limit the scope of protection of the present invention in any way. Example

[0017] like Figure 1-4 As shown, a fixture for assembling and clamping irregularly shaped flanges includes a fixture frame 1, a fixture table 2, and irregularly shaped positioning components 5 and multiple auxiliary positioning structures disposed on the fixture table 2. This fixture is mainly used for precise assembly, stable clamping, and efficient loading and unloading of irregularly shaped flange workpieces, ensuring positioning accuracy and operational convenience during assembly and processing.

[0018] See Figure 1 The tooling frame 1 serves as the basic support structure for the entire tooling. It is a rectangular frame structure, with pads 102 at the bottom of each of its four legs 101, which are fastened to the pads 102 via connectors 103. This structure ensures that the tooling can stably bear the weight of the workpiece and the tooling itself during use, effectively preventing shaking or tilting, and ensuring operational safety and positioning reliability.

[0019] The tooling table 2 is located on the top surface of the tooling frame 1 and serves as the operating platform for the entire tooling. Lifting eye bolts 3 and reference hole cover plates 4 are respectively installed at the four corners of the tooling table 2. The lifting eye bolts 3 serve as lifting points for the tooling, facilitating the lifting, handling, and installation of the entire tooling. Their function is to enable quick engagement with lifting devices or cranes during the transportation, installation, or flipping of the entire tooling, preventing direct impact on the tooling body and thus avoiding structural deformation or damage, ensuring the safety and stability of the lifting process. The reference hole cover plates 4 cover the reference holes on the tooling table 2, protecting the holes from contamination or damage when not in use, maintaining the integrity and flatness of the tooling table 2, preventing chips and dust from entering the holes and affecting positioning accuracy, and facilitating the placement and operation of workpieces on the table.

[0020] A non-circular positioning component 5 is provided at the center of the tooling table 2 for precise positioning and stable installation of the central ring of the non-circular flange. The non-circular positioning component 5 is composed of a lower ring body 6 and an upper cross-shaped frame 10.

[0021] See Figure 3 The lower layer is a circular body 6, with multiple first through holes 7 evenly distributed around its circumference for inserting positioning pins or bolts to reliably connect the circular body 6 to the central ring of the irregular flange. Two first right-angle members 8 are positioned opposite each other in the horizontal direction of the circular body 6 to abut against the outer edge of the flange, forming a lateral limit and preventing lateral displacement of the workpiece. Two first handles 9 are positioned opposite each other in the vertical direction, facilitating direct lifting and unloading of the lower circular body 6 by the operator, improving operational convenience.

[0022] The upper layer is a cross-shaped frame 10, formed by four arc-edged components, which completely covers the lower ring body 6. Each arc-edged component has a second through hole 11 on its inner side for inserting a positioning pin or fastener to further enhance the fixation of the workpiece at the central ring position. Two second handles 12 are positioned opposite each other in the horizontal direction to facilitate the handling and disassembly of the upper structure; two second right-angled components 13 are positioned opposite each other in the vertical direction to longitudinally limit the workpiece and prevent vertical displacement. A stepped structure 14 is provided at the bottom of the four arc-edged components, further restricting the placement of the irregularly shaped flange workpiece on the fixture. Through the cooperation of the upper and lower structures, the lower ring body 6 provides support and lateral positioning of the workpiece, while the upper cross-shaped frame 10 provides longitudinal positioning and secondary fixation. Together, they ensure accurate positioning, stable clamping, and convenient disassembly of the workpiece at the center position.

[0023] Around the irregularly shaped positioning component 5, auxiliary positioning structures for further positioning of the irregularly shaped flange are also provided, including rectangular positioning blocks 15, circular positioning blocks 16, and reference hole cover plates 4. Specifically, two rectangular positioning blocks 15 are provided on each side of the irregularly shaped positioning component 5, one of which is parallel to the width direction of the tooling table 2, and the other is parallel to the length direction of the tooling table 2. The two rectangular positioning blocks 15, arranged perpendicularly to each other, can limit the workpiece in the lateral and longitudinal directions, ensuring the initial positioning accuracy of the workpiece on the table.

[0024] Furthermore, circular positioning blocks 16 are respectively provided along the four diagonal directions of the irregular positioning component 5. Each circular positioning block 16 is adapted to the outer contour of the irregular flange to prevent the workpiece from rotating or moving radially, thereby achieving circumferential positioning and multi-directional constraint of the workpiece. Further, a reference hole cover plate 4 is provided on the outer extension direction of each positioning block. When the reference hole is not in use, the reference hole cover plate 4 covers its surface, which not only prevents debris from entering the hole, ensuring the machining accuracy and reusability of the reference hole, but also maintains the flatness of the tooling table 2, facilitating workpiece operation and placement.

[0025] Through the combination of the rectangular positioning block 15, the circular positioning block 16 and the reference hole cover plate 4, the irregular flange can obtain horizontal and vertical bidirectional limiting, circumferential positioning and reference protection during the installation process. It works in synergy with the upper and lower irregular positioning components 5 to achieve multi-directional limiting, precise positioning and stable clamping of the workpiece.

[0026] The working principle and usage of this tooling are as follows: The first step is for the operator to place the entire fixture in the designated work area, ensuring its level and stability through the support structure of the fixture frame 1 and the base plate 102. If necessary, the fixture can be lifted and its position adjusted using the eye bolts 3 in conjunction with the overhead crane.

[0027] The second step involves the operator removing part of the reference hole cover plate 4 on the tooling table 2 to expose the reference holes for inserting pins or fasteners and establishing a reference positioning reference.

[0028] The third step involves placing the irregularly shaped flange at the center of the tooling table 2, aligning its central ring with the lower ring body 6, and inserting the positioning pin through the first through hole 7 to complete the initial positioning and fixing. At this point, the first right-angle component 8 of the lower ring body 6 forms a lateral limit on the workpiece, while the first handle 9 structure facilitates adjustment by the operator.

[0029] The fourth step involves placing the upper cross-shaped frame 10 over the central ring of the flange, thus completing the longitudinal positioning and secondary fixation of the workpiece. The upper second right-angle member 13 cooperates with the lower first right-angle member 8 to achieve reliable positioning in both the horizontal and vertical directions.

[0030] Fifth, the workpiece is further limited in the horizontal, vertical, and circumferential directions by rectangular positioning blocks 15 and circular positioning blocks 16. The rectangular positioning blocks 15 ensure the horizontal and vertical accuracy of the workpiece on the tooling table 2, while the circular positioning blocks 16 restrict the radial and rotational degrees of freedom of the workpiece, so that the workpiece can be fully limited.

[0031] Step six: After completing the assembly and positioning, the operator can perform welding, machining, or inspection operations according to process requirements. The overall structure of the tooling ensures that the workpiece remains stable throughout the entire operation, avoiding a decrease in machining accuracy due to displacement.

[0032] Step 7: After the operation is completed, the operator removes the upper structure and positioning pins, and uses the second handle 12 to lift the upper structure, thereby unlocking the workpiece. Then, the workpiece is removed from the lower ring body 6 and the outer positioning blocks 15 and 16, completing one operation cycle.

[0033] Through the above steps, this tooling achieves precise assembly and stable clamping of irregular flanges, which can improve the positioning accuracy and clamping efficiency of the workpiece without affecting its integrity, and ensure the processing quality and assembly reliability of subsequent processes.

[0034] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any innovative improvements or substitutions based on this utility model should fall within the scope of the claims of this utility model. Furthermore, the parameters, materials, and processes mentioned in the above embodiments are not unique. Without departing from the technical essence of this utility model, those skilled in the art can make various alternative choices, and these alternative solutions should also be considered to fall within the scope of protection of this utility model.

Claims

1. A tooling for assembling and clamping irregularly shaped flanges, comprising a tooling table, characterized in that, Also includes: An irregularly shaped positioning component is disposed at the center of the tooling table. The irregularly shaped positioning component includes a lower structure for supporting and laterally positioning the irregularly shaped flange, and an upper structure detachably disposed above the lower structure, the upper structure being used for longitudinally limiting the irregularly shaped flange; and Multiple positioning blocks are disposed on the tooling table and distributed around the irregular positioning component. The multiple positioning blocks include a first positioning block for lateral or longitudinal limiting of the irregular flange and a second positioning block for circumferential limiting of the irregular flange.

2. The tooling according to claim 1, characterized in that, The lower structure is a circular body with multiple first through holes on its circumference, and the circular body is provided with at least one lateral limiting member for abutting against the outer edge of the irregular flange.

3. The tooling according to claim 1 or 2, characterized in that, The upper structure is a cross-shaped frame with multiple second through holes, and the cross-shaped frame is provided with at least one longitudinal limiting member for longitudinally limiting the irregular flange.

4. The tooling according to claim 1, characterized in that, The first positioning block is a rectangular positioning block, and the second positioning block is a circular positioning block.

5. The tooling according to claim 1, characterized in that, The tooling platform is also equipped with multiple lifting points for lifting and moving the tooling as a whole.

6. The tooling according to claim 1, characterized in that, The tooling table surface is provided with at least one reference hole and is equipped with a reference hole cover plate.

7. The tooling according to claim 1, characterized in that, It also includes a tooling stand for supporting the tooling table surface; the bottom of the legs of the tooling stand is provided with pads.

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