Tooling fixture for semi-toroidal conduit boring

Abstract

The utility model relates to tool fixture technical field, especially a kind of tool fixture for half ring catheter hole milling. The utility model includes: symbol plate, pressing plate and bottom plate;Symbol plate is assembled on bottom plate by fixed pin and inner hexagonal screw;Pressing plate is evenly distributed in the arc side of symbol plate by positioning pin, half ring catheter is fixed between the two, and half ring catheter is positioned. Symbol plate is arc plate structure, and semicircular groove is processed on its arc side;The side of pressing plate close to symbol plate is processed with the arc concave edge matched with symbol plate;Semicircular groove is processed on the side of arc concave edge, and it is matched with the semicircular groove on the arc side of symbol plate to form circular structure, for the half ring catheter is positioned tightly. The technical scheme of the utility model solves the problem that the existing technology is not good at controlling clamping force due to the individual differences of round pipe, which can easily cause catheter surface bruise, deformation, large hole position deviation and unqualified products.

Description

Technical Field

[0001] This utility model relates to the field of tooling and fixture technology, and in particular to a tooling and fixture for milling holes in a semi-circular guide tube. Background Technology

[0002] Metal conduits play a crucial role in aero-engines, used to transport media such as fuel, lubricating oil, oxygen, and compressed air. The manufacturing technology for conduits imposes stringent acceptance standards on aspects such as surface quality, dimensional tolerances, and geometric tolerances.

[0003] Semi-ring conduit products require small holes to be machined at angles on the conduit wall. Accurate positioning and secure clamping are necessary before milling these holes using a five-axis machining center. Traditionally, a groove is milled into the base plate, and the product is placed into the groove and pressed. Due to individual product variations, placing the product into the groove is time-consuming and labor-intensive. Deformation and slight rotation can easily occur during clamping, leading to inaccurate positioning and significant hole deviations after clamping. Poor clamping force can also cause surface damage and deformation of the conduit, resulting in defective products.

[0004] In view of the problems existing in the prior art, it is necessary to study and design a new type of tooling fixture for milling holes in semi-circular guide tubes, so as to overcome the problems existing in the prior art. Summary of the Invention

[0005] The existing technology addresses the technical problems of surface damage and deformation of semi-circular guide tubes due to individual differences in the guide tubes, which can easily lead to significant hole position deviations and defective products if the clamping force is not properly controlled. This invention provides a tooling fixture for milling holes in semi-circular guide tubes. This utility model primarily utilizes a pressure plate and a conforming plate to circumferentially press the semi-circular guide tube, ignoring individual deviations generated during product forming. The clamping plates act as a shaping element during pressing, and their conforming design ensures a sufficiently large contact area with the product. This eliminates the need for special control of clamping force during pressing, preventing damage and deformation risks. The fixture ensures perfect conformity between the product and the product, resulting in high-precision hole positions, stable positional tolerances, convenient operation, and reduced preparation time.

[0006] The technical means adopted in this utility model are as follows:

[0007] A tooling fixture for milling holes in a semi-circular guide tube includes: a shaped plate, a pressure plate, and a base plate;

[0008] Furthermore, the symbol plate is an arc-shaped plate structure, which is assembled onto the base plate by fixing pins and internal hexagon screws;

[0009] Furthermore, the pressure plate is evenly distributed on the arc-shaped side of the shaped plate by positioning pins, fixing the semi-circular conduit between the two and positioning the semi-circular conduit.

[0010] Furthermore, the shaped plate has an arc-shaped plate structure with semi-circular grooves machined on its arc-shaped sides, which are used to clamp and position the semi-circular guide tube in conjunction with the pressure plate.

[0011] Furthermore, the side of the pressure plate closest to the symbol plate is machined with an arc-shaped concave edge that matches the symbol plate;

[0012] Furthermore, a semi-circular groove is machined on the concave side of the arc, which, together with the semi-circular groove on the arc side of the shaped plate, forms a near-circular structure for tightening and positioning the semi-circular guide tube.

[0013] Furthermore, the curved edge of the shaped plate is machined with recessed milling slots for milling holes in the semi-circular guide tube;

[0014] Furthermore, the milled slot is located at the middle of the mating edge between the shaped plate and the pressure plate.

[0015] Furthermore, a milling slot is machined in the middle of the concave side of the pressure plate, which cooperates with the milling slot on the shaped plate to mill the semi-circular guide tube.

[0016] Furthermore, a limiting plate is machined at one end of the arc-shaped side of the shaped plate to limit the end of the semi-circular conduit.

[0017] The usage process of this utility model is as follows:

[0018] First, the shaped plate is assembled onto the base plate using fixing pins and hex socket screws. Then, a semi-circular guide tube is installed in the semi-circular groove on the arc edge of the shaped plate. The front end of the semi-circular guide tube rests against the limiting plate to limit the position of the semi-circular guide tube.

[0019] Then, press the pressure plate from the outside towards the arc edge of the shaped plate. The semi-circular guide tube is pressed by the pressure plate and the semi-circular groove on the shaped plate. After pressing, the pressure plate is positioned by the positioning pin.

[0020] Third, after assembly, mill the semi-circular guide tubes exposed in the milling slots on the pressure plate and the shaped plate;

[0021] Finally, remove the pressure plate and take out the milled semi-circular guide tube before proceeding to the next milling operation.

[0022] Compared with the prior art, the present invention has the following advantages:

[0023] 1. The tooling fixture for milling holes in semi-circular guide tubes provided by this utility model uses the pressure plate and the semi-circular groove on the shaped plate to press and position the semi-circular guide tube. Individual deviations generated during product forming can be ignored. It plays a shaping role during pressing. Moreover, the clamping surfaces are all shaped and have a large enough contact area with the product. There is no need to specially control the clamping force during pressing, and there is no risk of pressure damage or deformation.

[0024] 2. The tooling fixture provided by this utility model for milling holes in semi-circular guide tubes will press the semi-circular guide tubes circumferentially, so that the product and the tooling are perfectly matched. The machined holes have high positional accuracy, stable positional tolerance, convenient operation and save preparation time.

[0025] 3. The tooling fixture for milling holes in semi-circular guide tubes provided by this utility model can fit tightly with the surface of the semi-circular guide tube, correct individual deviations in shape, provide accurate positioning, and is simple to operate, highly efficient, and practical.

[0026] In summary, the technical solution of this utility model solves the problem in the prior art where, due to individual differences in round tubes, poor control of clamping force easily leads to surface damage and deformation of the guide tube, large hole position deviations, and the easy occurrence of defective products. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the structure of this utility model;

[0029] Figure 2 This is a schematic diagram of the unassembled semi-circular conduit structure of this utility model;

[0030] Figure 3 This is a schematic diagram of the assembly structure of the shaped plate, pressure plate and semi-circular conduit of this utility model;

[0031] Figure 4 This is a schematic diagram of the symbolic plate structure of this utility model;

[0032] Figure 5 This is a schematic diagram of the pressure plate structure of this utility model.

[0033] In the diagram: 1. Shaped plate; 2. Pressure plate; 3. Base plate; 4. Limiting plate; 5. Positioning pin; 6. Fixing pin; 7. Socket head screw; 8. Semi-circular guide tube. Detailed Implementation

[0034] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0035] 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 some embodiments of this utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this utility model or its application or use. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0036] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to the present invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0037] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0038] In the description of this utility model, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0039] For ease of description, spatial relative terms such as "above," "over," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation besides the orientation of the device as described in the figures. For example, if the device in the figures is inverted, a device described as "above" or "above" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0040] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0041] like Figure 1 As shown, this utility model provides a tooling fixture for milling holes in a semi-circular guide tube, comprising: a shaped plate 1, a pressure plate 2, and a base plate 3; the shaped plate 1 is an arc-shaped plate structure, which is assembled onto the base plate 3 by fixing pins 6 and internal hexagon screws 7; the pressure plate 2 is evenly distributed on the arc-shaped side of the shaped plate 1 by positioning pins 5, which fix the semi-circular guide tube 8 between the two and position the semi-circular guide tube 8.

[0042] like Figure 1-4 As shown, the symbol plate 1 is an arc-shaped plate structure with a semi-circular groove machined on its arc-shaped side, which is used to clamp and position the semi-circular guide tube 8 in conjunction with the pressure plate 2.

[0043] like Figure 1-3 As shown in Figure 5, the pressure plate 2 has an arc-shaped concave edge that mates with the shaped plate 1 on the side near the shaped plate 1; a semi-circular groove is machined on the side of the arc-shaped concave edge, which mates with the semi-circular groove on the side of the arc-shaped edge of the shaped plate 1 to form a near-circular structure, which is used to tighten and position the semi-circular guide tube 8.

[0044] like Figure 1 , 2 As shown in Figure 4, the arc-shaped side of the shaped plate 1 is machined with a recessed milling slot for milling the semi-annular guide tube 8; the milling slot is located at the middle of the mating edge between the shaped plate 1 and the pressure plate 2.

[0045] like Figure 1 , 2As shown in Figure 5, the middle part of the arc-shaped concave side of the pressure plate 2 is machined with a milled hole groove, which cooperates with the milled hole groove on the shaped plate 1 to mill the semi-circular guide tube 8.

[0046] like Figure 1 , 2 As shown in Figure 4, a limiting plate 4 is machined at one end of the arc-shaped side of the shaped plate 1 to limit the end of the semi-circular guide tube 8.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A tooling fixture for milling holes in semi-circular guide tubes, characterized in that: The tooling fixture for milling holes in a semi-circular guide tube includes: a shaped plate (1), a pressure plate (2), and a base plate (3). The symbol plate (1) is an arc-shaped plate structure, which is assembled onto the base plate (3) by fixing pins (6) and internal hexagon screws (7); The pressure plate (2) is evenly distributed on the arc-shaped side of the shaped plate (1) by positioning pins (5) to fix the semi-circular conduit (8) between the two and to position the semi-circular conduit (8).

2. The tooling fixture for milling holes in semi-circular guide tubes according to claim 1, characterized in that: The shaped plate (1) is an arc-shaped plate structure with a semi-circular groove processed on its arc-shaped side, which is used to clamp and position the semi-circular guide tube (8) in conjunction with the pressure plate (2).

3. The tooling fixture for milling holes in a semi-circular guide tube according to claim 2, characterized in that: The pressure plate (2) has an arc-shaped concave edge that matches the symbol plate (1) on the side closest to it; The arc-shaped concave side is machined with a semi-circular groove, which cooperates with the semi-circular groove on the arc-shaped side of the shaped plate (1) to form a near-circular structure, used to tighten and position the semi-circular guide tube (8).

4. The tooling fixture for milling holes in a semi-circular guide tube according to claim 2, characterized in that: The shaped plate (1) has recessed milling slots machined on its arc-shaped side for milling holes in the semi-circular guide tube (8); The milled slot is located at the middle of the mating edge of the shaped plate (1) and the pressure plate (2).

5. The tooling fixture for milling holes in a semi-circular guide tube according to claim 2, characterized in that: The pressure plate (2) has a milled hole groove in the middle of the arc-shaped concave side, which cooperates with the milled hole groove on the shaped plate (1) to mill the semi-circular guide tube (8).

6. The tooling fixture for milling holes in a semi-circular guide tube according to claim 2, characterized in that: The shaped plate (1) has a limiting plate (4) processed at one end of its arc-shaped side to limit the end of the semi-circular guide tube (8).

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