Positioning jig for flange machining

Abstract

The utility model provides a flange machining positioning jig, which relates to the technical field of positioning tools and comprises a circular bottom plate, a positioning column arranged on the circular bottom plate, a detachable mounting gland on the positioning column, a plurality of supporting blocks circumferentially arranged on the circular bottom plate, and a positioning step arranged on one side, facing the center of the circular bottom plate, of each supporting block. In the using process, the end face, to be drilled, of a flange is placed on the positioning step of the supporting block upwards, then the gland is locked on the positioning column through the bolt, the gland presses the flange on the supporting block, and therefore the flange can be rapidly fixed, the flange can be rapidly locked and fixed on the positioning step through the gland, damage to flange threads in the clamping process is avoided, and the machining efficiency is improved. Operation is easy and convenient, and machining efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of positioning tooling technology, and more specifically, to a flange processing positioning fixture. Background Technology

[0002] like Figure 1 The flange shown is cylindrical in shape. After casting, holes need to be drilled on the end face of the flange. Traditionally, drilling on the flange end face is done manually by fixing the flange with a bench vise before drilling. Since the outer wall of the flange has threads, the threads will be damaged during clamping, causing the flange to be scrapped. In addition, fixing the flange is inconvenient, resulting in low processing efficiency. Utility Model Content

[0003] This utility model provides a flange processing positioning fixture, which aims to improve the technical problems of low efficiency caused by easy damage to the threads and inconvenient clamping in the existing flange processing.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a flange processing positioning fixture, comprising a circular base plate, a positioning post provided on the circular base plate, a detachable mounting cap on the positioning post, a plurality of support blocks arranged circumferentially on the circular base plate, and a positioning step provided on the side of the support block facing the center of the circular base plate.

[0005] Furthermore, the pressure cap includes several circumferentially extending pressure blocks, each pressure block having a U-shaped notch.

[0006] Furthermore, a fixing block is further provided on the circular base plate, and the fixing block is horizontally installed with a T-shaped protrusion.

[0007] Furthermore, two positioning rods are provided on the positioning post, and the pressure cap has a guide hole through which the positioning rods pass.

[0008] Further, let the pressing block be block X and the supporting block be block Y, where X = Y.

[0009] Furthermore, the circular base plate has several threaded holes.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] This utility model discloses a flange processing positioning fixture with a simple and ingenious design. It includes a circular base plate with positioning posts on it and detachable mounting caps on the posts. Several support blocks are arranged circumferentially on the circular base plate, and a positioning step is provided on one side of each support block facing the center of the base plate. In use, the flange with the end face to be drilled is placed on the positioning step of the support block with the hole facing upwards. Then, the caps are bolted to the positioning posts, pressing the flange against the support blocks, thus quickly fixing the flange. This utility model uses the caps to quickly lock and fix the flange on the positioning step, avoiding damage to the flange threads during clamping. It is simple and convenient to operate, improving processing efficiency. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the flange structure;

[0014] Figure 2 This is a schematic diagram of the flange clamping fixture used for processing and positioning the flange of this utility model;

[0015] Figure 3 This is an exploded view of the flange processing and positioning fixture of this utility model;

[0016] Figure 4 This is a schematic diagram of the circular base plate structure of the flange processing and positioning fixture of this utility model.

[0017] Explanation of main component symbols

[0018] 10. Circular base plate; 101. Positioning post; 1011. Positioning rod; 102. Pressure cap; 1021. U-shaped notch; 1022. Guide hole; 103. Support block; 1031. Support step; 104. Fixing block; 1041. Protrusion;

[0019] 20. Flange. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0021] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0022] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0023] Example

[0024] Reference Figure 2-4As shown, this utility model discloses a flange processing positioning fixture, including a circular base plate 10, a positioning post 101 on the circular base plate 10, and several support blocks 103 arranged circumferentially on the circular base plate 10. A detachable mounting cover 102 is mounted on the positioning post 101. Specifically, the cover 102 includes several circumferentially extending pressure blocks, and the pressure blocks have U-shaped notches 1021. In use, the flange 20 is placed on the support block 103, and bolts pass through the cover 102 and lock it on the positioning post 101. The pressure blocks press the flange 20 against the support block 103, realizing the quick clamping of the flange 20. The drill bit can perform drilling operations on the end face of the flange 20 through the U-shaped notches 1021. Let the pressure block be X block and the support block 103 be Y block, X = Y. In this embodiment, the number of pressure blocks is equal to the number of support blocks 103. When the drill bit drills a hole in the flange 20 from the U-shaped notch 1021, the downward pressure will cause the flange 20 to deform. Therefore, the one-to-one corresponding support block 103 can play the role of supporting the flange 20.

[0025] Furthermore, two positioning rods 1011 are provided on the positioning post 101, and the pressure cap 102 has a guide hole 1022. The positioning rods 1011 pass through the guide hole 1022. When the pressure rod is locked on the positioning post 101, the positioning rods 1011 pass through the guide rod and play a guiding role, so that the pressure cap 102 can be smoothly locked downward on the positioning post 101.

[0026] Reference Figure 2-4 As shown, a positioning step is provided on the side of the support block 103 facing the center of the circular base plate 10, and a step is provided at the position where the outer ring threads of the flange 20 intersect. The positioning step is used to support the outer wall step of the flange 20. When the gland 102 presses the flange 20, the positioning step plays a supporting and fixing role. Compared with the traditional clamping method, it can avoid damage to the threads.

[0027] Reference Figure 2-4 As shown, a fixing block 104 is further provided on the circular base plate 10, and a T-shaped protrusion 1041 is horizontally installed on the fixing block 104. Specifically, several strip holes are opened circumferentially on the side wall of the flange 20. When the flange 20 is placed on the support block 103, the protrusion 1041 passes through the strip holes of the flange 20 to prevent the flange 20 from rotating and to further position the flange 20.

[0028] In addition, the circular base plate 10 has several threaded holes, which can be used to fix the circular base plate 10 to the drilling platform, facilitating the drilling operation of the flange 20.

[0029] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A flange processing positioning fixture, characterized in that; It includes a circular base plate, a positioning post on the circular base plate, a detachable mounting cap on the positioning post, a plurality of support blocks arranged circumferentially on the circular base plate, and a positioning step on the side of the support block facing the center of the circular base plate.

2. The flange processing positioning fixture according to claim 1, characterized in that: The pressure cap includes several circumferentially extending pressure blocks, each pressure block having a U-shaped notch.

3. The flange processing positioning fixture according to claim 1, characterized in that: A fixing block is further provided on the circular base plate, and the fixing block is horizontally installed with a T-shaped protrusion.

4. The flange processing positioning fixture according to claim 1, characterized in that: Two positioning rods are provided on the positioning post, and the pressure cap has a guide hole through which the positioning rods pass.

5. The flange processing positioning fixture according to claim 2, characterized in that: Let the pressing block be X block and the supporting block be Y block, where X = Y.

6. The flange processing positioning fixture according to claim 1, characterized in that: The circular base plate has several threaded holes.

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