Fixture for drilling exhaust pipe connecting flange

Abstract

The utility model discloses an exhaust pipe connecting flange drilling processing clamp, which comprises a working table, a plurality of stations are arranged on the working table, each station comprises a radial positioning seat and an axial positioning device, the radial positioning seats are fixedly arranged on the working table, the axial positioning device comprises a supporting column and a pressing clamp which are fixedly arranged on the working table, and the supporting columns and the pressing clamps are fixedly arranged on the working table. An exhaust pipe connecting flange is arranged on the supporting column, and the radial positioning seat is sleeved with a positioning hole of the exhaust pipe connecting flange. When the exhaust pipe connecting flange is positioned on the workbench, the exhaust pipe connecting flange is limited in the horizontal direction through the radial positioning base, and the exhaust pipe connecting flange is limited in the vertical direction through the supporting column and the pressing clamp. In this way, the exhaust pipe connecting flange is positioned in multiple directions, the effects of being firm in clamping and high in stability are achieved, the exhaust pipe connecting flange is not prone to loosening in the machining process, therefore, the machining precision can be improved, machining can be conducted at multiple stations at the same time, and the machining efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of flange processing, in particular to a clamp for drilling a flange connecting an exhaust pipe. Background Art

[0002] Flange, also known as flange flange or flange, is a part that connects shafts to each other. It is used to connect pipe ends. It is also used as a flange on the inlet and outlet of equipment to connect two devices. Flange connection or flange joint refers to a detachable connection that is connected by flange, gasket and bolts as a combined sealing structure. All connecting parts that are bolted and closed around two planes are generally called "flanges". When drilling holes in flanges, it is generally necessary to use a clamp to clamp and fix the flange.

[0003] There is an exhaust pipe connecting flange, such as Figure 7 As shown, the exhaust pipe connecting flange 100 is an irregular disc shape as a whole. The exhaust pipe connecting flange 100 includes a disc body. A positioning hole 101 is provided at the center of the disc body. A lug 102 is provided on the outer circumference of the disc body. During the production process of the exhaust pipe connecting flange 100, a first mounting hole, a second mounting hole and a third mounting hole need to be opened. The openings of the first mounting hole, the second mounting hole and the third mounting hole are all chamfered.

[0004] Since the exhaust pipe connecting flange 100 is irregular in shape, when the exhaust pipe connecting flange 100 is directly placed on the workbench for drilling, it is easy to shake and tilt, resulting in unstable clamping of the exhaust pipe connecting flange 100 by the clamp, and ultimately causing the exhaust pipe connecting flange 100 to be drilled non-compliantly.

[0005] Therefore, we urgently need to design a fixture for drilling the exhaust pipe connection flange. Utility Model Content

[0006] The purpose of the utility model is to solve the problem that the exhaust pipe connecting flange is prone to shaking and tilting during drilling, resulting in unstable clamping of the exhaust pipe connecting flange by the clamp, and ultimately causing the exhaust pipe connecting flange to be drilled non-compliantly. A clamp for drilling exhaust pipe connecting flange is proposed.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A fixture for drilling holes in exhaust pipe connecting flanges comprises a workbench with a plurality of workstations arranged thereon, the workstations comprising a radial positioning seat and an axial positioning device, the radial positioning seat being fixedly arranged on the workbench, the axial positioning device comprising a support column and a clamping clamp fixedly arranged on the workbench, the support column being provided with an exhaust pipe connecting flange, and the positioning hole of the exhaust pipe connecting flange being sleeved on the radial positioning seat, and the clamping clamp being provided with a clamping block for clamping the exhaust pipe connecting flange.

[0009] Furthermore, an anti-error block is also provided on the workbench.

[0010] Furthermore, a fitting surface is provided at the upper end of the anti-error block.

[0011] Furthermore, a first chamfer is provided at the top end of the radial positioning seat.

[0012] Furthermore, a plurality of support columns are provided and are evenly distributed around the circumference of the radial positioning seat.

[0013] Furthermore, a small-diameter end is provided at the top of the support column, and a second chamfer is provided at the top of the small-diameter end.

[0014] Furthermore, at least two clamping pliers are provided and are evenly distributed around the circumference of the radial positioning seat.

[0015] Furthermore, a support column is provided directly below the pressing block.

[0016] After adopting the above structure, the utility model has the following beneficial effects:

[0017] ① The utility model discloses a fixture for drilling holes in exhaust pipe connecting flanges, comprising a workbench, wherein a plurality of workstations are provided on the workbench, wherein the workstations include a radial positioning seat and an axial positioning device, wherein the radial positioning seat is fixedly arranged on the workbench, and the axial positioning device includes a support column and a clamp fixedly arranged on the workbench. When the exhaust pipe connecting flange is positioned on the workbench, the radial positioning seat is used to limit the exhaust pipe connecting flange in the horizontal direction, and the support column and the clamp are used to limit the exhaust pipe connecting flange in the vertical direction. In this way, the exhaust pipe connecting flange is positioned in multiple directions, which has the effects of firm clamping and high stability. During processing, the exhaust pipe connecting flange is not easy to loosen, thereby improving the processing accuracy, and multiple workstations can be processed simultaneously, with high processing efficiency.

[0018] ② In the fixture for drilling holes of an exhaust pipe connection flange described in the utility model, an anti-error block is also provided on the workbench. The anti-error block corresponds to the lug on the outer circumference of the exhaust pipe connection flange, and the relative position of the lug and the anti-error block can be used to determine whether the direction in which the exhaust pipe connection flange is fixed on the radial positioning seat is correct, thereby improving the installation efficiency of the exhaust pipe connection flange. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific implementation methods of the present utility model, the drawings required for use in the description of the specific implementation methods will be briefly introduced below. Obviously, the drawings in the following description are some implementation methods of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a schematic diagram of the overall structure of the workstation and the error-proof block of the utility model;

[0022] Figure 3 It is a three-dimensional schematic diagram of the radial positioning seat of the utility model;

[0023] Figure 4 It is a three-dimensional schematic diagram of the anti-error block of the utility model;

[0024] Figure 5 It is a three-dimensional schematic diagram of the support column of the utility model;

[0025] Figure 6 It is a three-dimensional schematic diagram of the clamping pliers of the utility model;

[0026] Figure 7 It is a three-dimensional schematic diagram of the exhaust pipe connecting flange of the utility model;

[0027] Figures 1 to 7 The bid number is:

[0028] 1. Workbench; 2. Work station; 21. Radial positioning seat; 211. First chamfer; 22 and axial positioning device; 221. Support column; 2211. Small diameter end; 2212. Second chamfer; 222. Clamping pliers; 2221. Clamping block; 3. Anti-error block; 31. Fitting surface; 100. Exhaust pipe connecting flange; 101. Positioning hole; 102. Lug. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0030] In the description of the present invention, it should be understood that if the 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. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, and does 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 present invention.

[0031] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0032] In the present invention, unless otherwise clearly defined and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0033] In the present utility model, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0034] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this utility model are only for illustrative purposes and do not represent the only implementation method.

[0035] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0036] like Figures 1 to 7 As shown, a fixture for drilling holes in exhaust pipe connecting flanges comprises a workbench 1, wherein the workbench 1 is provided with a plurality of workstations 2, wherein the workstations 2 comprise a radial positioning seat 21 and an axial positioning device 22, wherein the radial positioning seat 21 is fixedly arranged on the workbench 1, wherein the axial positioning device 22 comprises a support column 221 and a clamping clamp 222 fixedly arranged on the workbench 1, wherein an exhaust pipe connecting flange 100 is arranged on the support column 221, and a positioning hole 101 of the exhaust pipe connecting flange 100 is sleeved on the radial positioning seat 21, and the clamping clamp 222 is provided with a clamping block 2221 for clamping the exhaust pipe connecting flange 100.

[0037] Based on the above embodiments, the utility model aims to provide a fixture for drilling holes of an exhaust pipe connection flange, comprising a workbench 1, on which a plurality of workstations 2 are arranged, wherein the workstations 2 comprise radial positioning seats 21 and axial positioning devices 22, wherein the radial positioning seats 21 are fixedly arranged on the workbench 1, and the axial positioning devices 22 comprise support columns 221 and clamping pliers 222 fixedly arranged on the workbench 1. When the exhaust pipe connection flange 100 is positioned on the workbench 1, the radial positioning seats 21 are used to limit the exhaust pipe connection flange 100 in the horizontal direction, and the support columns 221 and clamping pliers 222 are used to limit the exhaust pipe connection flange 100 in the vertical direction. In this way, the exhaust pipe connection flange 100 is positioned in multiple directions, which has the effect of firm clamping and high stability. During processing, the exhaust pipe connection flange 100 is not easy to loosen, thereby improving the processing accuracy, and multiple workstations 2 can be processed simultaneously, with high processing efficiency.

[0038] As another preferred embodiment of the present invention, the workbench 1 is further provided with an error-proofing block 3. The upper end of the error-proofing block 3 is provided with a fitting surface 31. Figure 1 , Figure 4As shown, the workbench 1 is also provided with an error-proofing block 3. The error-proofing block 3 corresponds to the lug 102 on the outer circumference of the exhaust pipe connection flange 100. The relative position of the lug 102 and the error-proofing block 3 can be used to determine whether the direction in which the exhaust pipe connection flange 100 is fixed on the radial positioning seat 21 is correct, which can improve the installation efficiency of the exhaust pipe connection flange 100. The upper end of the error-proofing block 3 is provided with a fitting surface 31, and the fitting surface 31 is abutted against the outer wall of the exhaust pipe connection flange 100, which can reduce the shaking of the exhaust pipe connection flange 100 during drilling and improve the processing accuracy.

[0039] As another preferred solution of the present invention, the top end of the radial positioning seat 21 is provided with a first chamfer 211. Figure 1 , Figure 3 As shown, the first chamfer 211 plays a guiding role in the installation of the exhaust pipe connecting flange 100, facilitating the rapid installation of the exhaust pipe connecting flange 100.

[0040] As another preferred embodiment of the present invention, a plurality of support columns 221 are provided and are evenly distributed around the circumference of the radial positioning seat 21. The top of the support column 221 is provided with a small diameter end 2211, and the top of the small diameter end 2211 is provided with a second chamfer 2212. Figure 1 , Figure 5 As shown, by setting the small diameter end 2211 and the second chamfer 2212, the pressure point between the support column 221 and the exhaust pipe connecting flange 100 can be as small as possible, thereby reducing the possibility of debris generated by processing sticking to the upper surface of the support column 221, and also making the positioning of the exhaust pipe connecting flange 100 more precise.

[0041] As another preferred embodiment of the present invention, at least two clamping pliers 222 are provided and are evenly distributed around the circumference of the radial positioning seat 21. A support column 221 is provided directly below each clamping block 2221. Figure 1 , Figure 2 , Figure 6 As shown, the support column 221 plays a role in supporting the exhaust pipe connection flange 100, so that the pressing block 2221 can press the exhaust pipe connection flange 100 more firmly. A support column 221 is provided directly below the pressing block 2221, so that the support point of the support column 221 and the pressing point of the pressing block 2221 are on the same straight line in the vertical direction, thereby reducing the deformation of the exhaust pipe connection flange 100 when being pressed, and improving the processing accuracy.

[0042] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the present utility model.

Claims

1. A fixture for drilling holes in exhaust pipe connection flanges, comprising a workbench (1), wherein the workbench (1) is provided with a plurality of workstations (2), and wherein: The workstation (2) comprises a radial positioning seat (21) and an axial positioning device (22); the radial positioning seat (21) is fixedly arranged on the workbench (1); the axial positioning device (22) comprises a support column (221) and a clamp (222) fixedly arranged on the workbench (1); an exhaust pipe connecting flange (100) is arranged on the support column (221); a positioning hole (101) of the exhaust pipe connecting flange (100) is sleeved on the radial positioning seat (21); and the clamp (222) is provided with a clamping block (2221) for clamping the exhaust pipe connecting flange (100).

2. The fixture for drilling holes of exhaust pipe connection flange according to claim 1, characterized in that: An error-proofing block (3) is also provided on the workbench (1).

3. The fixture for drilling a hole in an exhaust pipe connection flange according to claim 2, characterized in that: The upper end of the error prevention block (3) is provided with a fitting surface (31).

4. The fixture for drilling holes of exhaust pipe connection flange according to claim 1, characterized in that: A first chamfer (211) is provided at the top end of the radial positioning seat (21).

5. The fixture for drilling holes of exhaust pipe connection flange according to claim 1, characterized in that: A plurality of support columns (221) are provided and are evenly distributed around the circumference of the radial positioning seat (21).

6. The fixture for drilling holes of exhaust pipe connection flange according to claim 5, characterized in that: The top end of the support column (221) is provided with a small-diameter end (2211), and the top end of the small-diameter end (2211) is provided with a second chamfer (2212).

7. The fixture for drilling holes of exhaust pipe connection flange according to claim 1, characterized in that: At least two pressing clamps (222) are provided and are evenly distributed around the circumference of the radial positioning seat (21).

8. The fixture for drilling holes of exhaust pipe connection flange according to claim 7, characterized in that: A support column (221) is provided directly below the pressing block (2221).

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