Simple auxiliary device for machining lug hole

Abstract

A simple auxiliary device for machining a lug hole comprises a base body and a workpiece, base body sunken grooves used for containing the workpiece are symmetrically formed in the base body, and meanwhile an avoiding hole is formed in one side of each base body sunken groove; the two ends of the base body are provided with a positioning hole used for inserting a positioning pin to position the whole auxiliary device and a counterbore used for installing a clamping bolt to clamp and fasten the whole auxiliary device respectively. According to the utility model, quick positioning and clamping of workpieces can be realized, time and labor are saved, and the batch production clamping efficiency of parts is greatly improved; meanwhile, by using the device, one-time machining forming of a machine tool drilling and reaming hole can be ensured, the machining quality and the process maturity of the hole are improved, the batch production waste and defective rate is effectively reduced, and the technical requirements of design strength and the like are met.

Description

Technical Field

[0001] The utility model relates to the technical field of aviation machinery parts processing devices, in particular to a simple auxiliary device for processing ear piece holes. Background Art

[0002] In the production and processing of aviation machinery parts, parts with lug structures are often encountered, and these lugs have precision holes with certain size requirements. The machining of these lug holes requires not only ensuring the required hole size accuracy and position, but also considering the minimum lug wall thickness to meet the design strength requirements. However, in actual operations, due to the stress deformation of the lugs after heat treatment or multiple milling operations, conventional drilling machines have low machining accuracy, or the positioning and clamping of parts are inaccurate, resulting in uneven lug wall thickness. This, in turn, results in a considerable number of lug holes being elliptical, causing quality problems in batch production and affecting delivery. Utility Model Content

[0003] The technical problem solved by the present invention is to provide a simple auxiliary device for processing ear piece holes, so as to solve the problems in the above-mentioned background technology.

[0004] The technical problem solved by the present invention is achieved by the following technical solutions:

[0005] A simple auxiliary device for processing ear holes, comprising a base and a workpiece, wherein the base is symmetrically provided with base sunken grooves for accommodating the workpiece, and an avoidance hole is provided on one side of each base sunken groove; positioning holes for inserting positioning pins to position the entire auxiliary device and countersunk holes for inserting clamping bolts to clamp and tighten the entire auxiliary device are respectively provided at both ends of the base, the positioning pins inserted into the positioning holes are used for positioning the entire auxiliary device, and the clamping bolts inserted into the countersunk holes are used for clamping and tightening the entire auxiliary device after positioning; the avoidance holes are prefabricated to place the workpiece in the base sunken groove, and the outer wall of the workpiece after CNC processing is abutted against the inner wall of the base sunken groove to achieve three-sided positioning. When the workpiece is positioned, the pressure plate on the surface of the workpiece is tightened to achieve the processing of the ear hole.

[0006] In the present invention, the base body is provided with a receiving hole for receiving the base body, so as to receive a plurality of auxiliary devices.

[0007] In the present invention, the depth of the base sunken groove is greater than the thickness of the workpiece, so as to facilitate positioning of the workpiece.

[0008] In the present invention, two avoidance holes are provided on one side of the base sunken groove, one of which is located on the corner of the base sunken groove, and the other avoidance hole does not contact the two corners on the same side of the base sunken groove to avoid the corner of the side wall of the workpiece.

[0009] In the present invention, the avoidance hole has the same shape as the contact surface of the workpiece corner, so as to prevent the workpiece corner from being damaged during the machining process. Beneficial effects

[0010] 1) The utility model can realize the rapid positioning and clamping of workpieces, saving time and labor, and greatly improving the efficiency of batch production clamping of parts;

[0011] 2) The use of this utility model can ensure that the drilling and reaming of the machine tool are processed and formed in one step, thereby improving the processing quality and process maturity of the hole, effectively reducing the waste rate of batch production, and meeting the technical requirements such as design strength;

[0012] 3) The application principle of this utility model is easy to understand. Starting from batch production, it fully considers the actual problems of difficult clamping and positioning. It is convenient and quick for workers to operate and maintain, with obvious production effect and good batch production processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a top view of a preferred embodiment of the present utility model.

[0014] Figure 2 It is a front view of a preferred embodiment of the present utility model.

[0015] Figure 3 This is a schematic diagram of the processing and assembly of a preferred embodiment of the present utility model.

[0016] Figure 4 This is an axial schematic diagram of workpiece processing and assembly according to a preferred embodiment of the present invention. DETAILED DESCRIPTION

[0017] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below with reference to specific illustrations.

[0018] See also Figures 1 to 4The present invention relates to a simple auxiliary device for processing ear hole, comprising a base 1, a positioning hole 2, a countersunk hole 3, an avoidance hole 4, a base sunken groove 5, a positioning pin 6, a workpiece 7 and a clamping bolt 8, wherein the base 1 is symmetrically provided with a base sunken groove 5 for accommodating the workpiece 7, and a avoidance hole 4 is provided on one side of each base sunken groove 5; the base 1 is provided with a positioning hole 2 for inserting the positioning pin 6 and a countersunk hole 3 for installing the clamping bolt 8 at both ends, the positioning pin 6 inserted into the positioning hole 2 is used for positioning the entire auxiliary device, and the clamping bolt 8 is installed in the countersunk hole 3 for clamping and tightening the entire auxiliary device after positioning; the avoidance hole 4 is prefabricated to place the workpiece 7 in the base sunken groove 5, and the outer wall of the workpiece 7 after CNC processing is abutted against the inner wall of the base sunken groove 5 to achieve three-sided positioning. When the workpiece 7 is positioned, the pressure plate on the surface of the workpiece 7 is tightened to achieve the processing of the ear hole.

[0019] In this embodiment, a receiving hole for receiving the base body 1 is provided on the base body 1. After the auxiliary devices are used, a pin can be inserted into the receiving hole to receive the multiple auxiliary devices.

[0020] In this embodiment, the depth of the base recess 5 is greater than the thickness of the workpiece 7 , so as to facilitate positioning of the workpiece 7 .

[0021] In this embodiment, two avoidance holes 4 are provided on one side of the base sunken groove 5, one of the avoidance holes 4 is located on the corner of the base sunken groove 5, and the other avoidance hole 4 does not contact the two corners on the same side of the base sunken groove 5 to avoid the corner of the side wall of the workpiece 7.

[0022] In this embodiment, the avoidance hole 4 has the same shape as the contact surface of the corner of the workpiece 7 to prevent the corner of the workpiece 7 from being damaged during the machining process.

[0023] In this embodiment, the steps are as follows:

[0024] Step 1: Position and tighten the auxiliary device through the positioning hole 2 on the base 1. After positioning, tighten the auxiliary device to the work surface through the clamping bolt 8;

[0025] Step 2: Positioning and clamping parts, placing the workpiece 7 in the base sunken groove 5, positioning the workpiece 7 with the outer wall after CNC machining against the inner wall of the base sunken groove 5. After positioning, tighten the surface of the workpiece 7 with a pressure plate to achieve the final clamping of the workpiece 7;

[0026] Step 3: Process the ear hole. When drilling and reaming the ear hole, the coordinates of the hole center are fixed and guaranteed by the machine tool setting. The depth of the processed hole is guaranteed by the machine tool Z value, which can ensure that the ear hole is processed and formed in one go. The minimum earring wall thickness is also guaranteed, reducing interference from human factors.

[0027] Step 4: Remove workpiece 7 and inspect delivery.

[0028] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A simple auxiliary device for processing ear hole, comprising a base and a workpiece, characterized in that: The base is symmetrically provided with base sunken grooves for accommodating workpieces, and an avoidance hole is provided on one side of each base sunken groove; the two ends of the base are respectively provided with positioning holes for inserting positioning pins to position the entire auxiliary device and countersunk holes for inserting clamping bolts to clamp and tighten the entire auxiliary device.

2. A simple auxiliary device for processing ear hole according to claim 1, characterized in that: The base is provided with a receiving hole for receiving the base.

3. A simple auxiliary device for processing ear hole according to claim 1, characterized in that: The depth of the base body sunken groove is greater than the thickness of the workpiece.

4. A simple auxiliary device for processing ear hole according to claim 1, characterized in that: Two avoidance holes are provided on one side of the base body sunken groove, one of the avoidance holes is located on the corner of the base body sunken groove, and the other avoidance hole does not contact the two corners on the same side of the base body sunken groove.

5. A simple auxiliary device for processing ear hole according to claim 1, characterized in that: The avoidance hole has the same shape as the contact surface of the workpiece corner.

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