A boring quick positioning and clamping tool

Abstract

The utility model relates to aviation machinery part processing field, concretely relates to a boring quick positioning and clamping tool. A boring quick positioning and clamping tool, including bottom plate, baffle, the positioning hole is set up on the bottom plate, and the two are positioned through the positioning pin that passes through the part inner hole and the positioning hole in proper order, the baffle is placed in the side surface of bottom plate, and the plane that it is pasted with the side surface of bottom plate is pasted with the plane below the part lug hole side plane, realizes the part positioning. The utility model has the following advantages: 1. can realize the quick positioning and clamping of workpiece, and the positioning and clamping efficiency of part is improved greatly, and the human factor interference is reduced, 2. the use of boring tool, ensures that each group of through hole is once processing forming, and the guarantee of design technical requirement, the batch production qualification rate is greatly improved, 3. the overall structure of tool design is simple, and the positioning and clamping principle is easy to understand, and the worker operation and maintenance are convenient and fast, and the production effect is obvious, and the batch production processing benefit is good.

Description

Technical Field

[0001] This utility model relates to the field of aerospace mechanical parts processing, specifically to a boring quick positioning and clamping fixture. Background Technology

[0002] Connector-type parts are common in aircraft structural design. Typically, these parts have multiple precision holes on their lugs, requiring high precision in coaxiality and hole diameter, generally at a precision level of 8 or higher, necessitating boring to ensure accuracy. In practice, boring efficiency for these precision holes on connector lugs is low, batch production yield is also low, and out-of-tolerance hole diameters or elliptical holes frequently occur, affecting production delivery. Utility Model Content

[0003] The purpose of this invention is to provide a fast boring positioning and clamping fixture to achieve rapid positioning and clamping of parts, thereby improving the boring efficiency and pass rate of parts and ensuring boring quality.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a boring quick positioning and clamping fixture, including a base plate and a baffle plate; a positioning hole is provided on the base plate, and the two are positioned by a positioning pin that passes through the inner hole of the part and the positioning hole in sequence; the baffle plate is placed on the side of the base plate, and the plane that fits against the side of the base plate fits against the lower plane of the lug hole of the part, thereby realizing the positioning of the part.

[0005] Furthermore, it also includes a pressure plate, one end of which presses against the inside of the lug of the part, and the other end is positioned by bolts to bolt holes opened on the base plate.

[0006] Preferably, the bolt holes are located on both sides of the positioning hole, and their centers are on the same straight line as the center of the positioning hole.

[0007] Preferably, the end section of the pressure plate that presses against the inner side of the lug of the part is trapezoidal. Preferably, the upper surface of the baffle plate is not higher than the bottom of the ear hole of the part.

[0008] Compared with the prior art, the present invention has the following advantages: 1. It can achieve rapid positioning and clamping of workpieces, greatly improving the positioning and clamping efficiency of parts and reducing human interference; 2. The use of boring tools ensures that each set of through holes is machined in one operation, thus guaranteeing the design technical requirements and significantly improving the batch production qualification rate; 3. The tooling design has a simple overall structure, the positioning and clamping principles are easy to understand, the operation and maintenance by workers are convenient and quick, the production effect is obvious, and the batch processing benefits are good. Attached Figure Description

[0009] Figure 1These are schematic diagrams of the connector parts in this embodiment of the present invention (a, side view; b, AA view; c, top view). Figure 2 This is an assembly isometric drawing of an embodiment of this utility model; Figure 3 This is an embodiment of the present invention with three views (a, side view; b, top view; c, left view). Figure 1 1-1, Inner hole of part; Figure 2 In the middle, 1. Connector parts; 2. Positioning pins; 3. Overlapping pressure plates; 4. Bolts; 5. Base plates; 6. Baffles. Detailed Implementation

[0010] It should be noted that the terms "upper," "lower," "top," and "bottom," etc., are used to describe the invention according to the accompanying drawings or conventional usage, and do not constitute a limitation on the present invention. Those skilled in the art should understand the invention in accordance with the technical solution of this application.

[0011] The following is in conjunction with the appendix Figure 1-3 The present invention will be further described in detail as follows: A boring hole quick positioning and clamping fixture, such as... Figure 2 As shown, it includes a base plate 5 and a baffle plate 6; the base plate 5 has positioning holes and bolt holes, the positioning holes can be used to insert a matching positioning pin 2, and the positioning pin 2 is inserted into the inner hole 1-1 of a matching part (e.g., Figure 1 (As shown) The part is lifted up, and then the baffle 6 is used to fit the lower side of the lug hole of the connector part 1 to achieve part positioning. Then, by inserting the bolt 4, the pressure plate 3 is placed on the inner surface of the lug of the part to press the part to achieve final clamping. Finally, the precision hole on the lug of the connector part can be bored.

[0012] In a preferred embodiment of this invention, there are at least two bolt holes, located on both sides of the positioning hole, with their centers on the same straight line as the center of the positioning hole.

[0013] In a preferred embodiment of this invention, when there is only one positioning and clamping connector part 1, the end section of the pressure plate 3 pressing on the inner side of the part lug is trapezoidal, and the end section connected to the bolt 4 is a regular quadrilateral; when there are multiple positioning and clamping connector parts 1, there are multiple pressure plates 3, and the two ends of the pressure plates 3 between adjacent connector parts 1 are trapezoidal.

[0014] In a preferred embodiment of this invention, the upper surface of the baffle 6 is not higher than the bottom of the ear hole of the connector part 1.

[0015] The usage steps are as follows: Step 1: Positioning and clamping the parts. The positioning pin 2 is inserted into the inner hole 1-1 of the part, and then the positioning pin 2 is placed in the positioning hole of the base plate. The part is positioned by the plane of the baffle 6 adhering to the lower plane of the lug hole of the connector part 1. Finally, the connector part 1 is clamped by the pressure plate 3 to achieve the final clamping of the part. Step 2: Precision boring. During boring, the center position of the lug hole is accurately located by the machine tool and machined in one go, which can effectively ensure coaxiality and hole size accuracy requirements, and improve boring efficiency; Step 3: Remove the parts and inspect the delivery.

[0016] The above embodiments are merely preferred embodiments of this utility model and do not constitute a limitation thereof. Any extensions, modifications, etc., made by those skilled in the art without departing from the principle of this utility model should be included within the protection scope of this utility model.

Claims

1. A quick positioning and clamping fixture for boring, characterized in that: It includes a base plate and a baffle plate; a positioning hole is provided on the base plate, and the two are positioned by a positioning pin that passes through the inner hole of the part and the positioning hole in sequence; the baffle plate is placed on the side of the base plate, and the plane that fits against the side of the base plate fits against the lower plane of the lug hole of the part, thereby realizing the positioning of the part.

2. The boring quick positioning and clamping fixture according to claim 1, characterized in that: It also includes a pressure plate, one end of which presses against the inside of the lug of the part, and the other end is positioned by bolts to bolt holes opened on the base plate.

3. The boring quick positioning and clamping fixture according to claim 2, characterized in that: The bolt holes are located on both sides of the positioning hole, and their centers are on the same straight line as the center of the positioning hole.

4. The boring quick positioning and clamping fixture according to claim 2, characterized in that: The end section of the pressure plate that presses against the inner side of the lug of the part is trapezoidal.

5. The boring quick positioning and clamping fixture according to claim 1, characterized in that: The upper surface of the baffle plate should not be higher than the bottom of the lug hole of the part.

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