CN113070646B

CN113070646B - Method for processing resonance rod without flanging structure

Info

Publication number: CN113070646B
Application number: CN202110385296.3A
Authority: CN
Inventors: 程江涛
Original assignee: Hubei Guanggu Science & Technology Co ltd
Current assignee: Hubei Guanggu Science & Technology Co ltd
Priority date: 2021-04-09
Filing date: 2021-04-09
Publication date: 2022-08-02
Anticipated expiration: 2041-04-09
Also published as: CN113070646A

Abstract

A machining method of a resonance rod without a flanging structure comprises the steps of firstly utilizing a cam type lathe to machine the bottom end and a lower outlet hole of a workpiece, completing cutting off the workpiece, then utilizing a numerical control lathe to machine all sizes except the outline of an excircle in place, and finally utilizing a centerless grinder to perform surface finish machining on the excircle to meet the requirements of surface roughness and size required finally to obtain a finished product. Compared with the scheme of processing by two working procedures on a numerical control lathe in the traditional processing, the invention fully utilizes the advantages of high processing speed of the cam type automatic lathe, high grinding quality of the centerless grinder and low equipment cost, can reduce the processing cost of the resonance rod, improves the processing efficiency, and can meet the requirements of processing precision and roughness.

Description

Method for processing resonance rod without flanging structure

Technical Field

The invention relates to the technical field of machining, in particular to a machining method of a resonance rod without a flanging structure.

Background

The resonance rod is a key device in the wireless base station filter and is one of the most used parts in the filter, and the resonance rod without a flanging structure is one of the large products, so that the customer demand is large. As a key device, customers have very high requirements on the size and the smoothness, which are generally about 1.6, and some products require a surface roughness of 0.8, which poses a great challenge to high-efficiency processing. Taking a steel product No. 45 as an example, if a numerically controlled lathe is adopted for machining, under the condition of meeting the requirements of surface roughness and machining precision, the production efficiency is low, the delivery requirement is difficult to meet, and the number of required machine tools is large. If the cam type lathe is adopted for processing, the processing efficiency is obviously improved, but the surface roughness processing requirement is difficult to meet.

Disclosure of Invention

The invention aims to overcome the defects and shortcomings of the prior art and provides a processing method of a resonance rod without a flanging structure, which can reduce the processing cost of the resonance rod, improve the processing efficiency and meet the requirements on processing precision and roughness.

In order to achieve the above purpose, the technical solution of the invention is as follows: the utility model provides a processing method of no turn-ups structure resonance bar, the exterior structure of resonance bar is the solid of revolution, is provided with on the top of the solid of revolution and goes out the hole, is provided with down on the bottom of the solid of revolution and goes out the hole, goes up to go out and goes out to pass through screw via hole intercommunication between the hole down, its characterized in that, its processing step is:

1) and machining the bottom end of the revolving body by using a cam lathe: trimming the bottom end by using a second cutter and performing round chamfering, drilling a lower hole by using a 120-degree drill bit, finely machining the lower hole in place by using a flat-bottomed drill, hooking a screw through hole and chamfering by using a fifth cutter, cutting off the revolving body with a margin by using a fourth cutter, and chamfering the cut end by using a third cutter to obtain a semi-finished product in the first stage;

2) and processing the top end of the first-stage semi-finished product by using a numerical control machine: firstly, clamping the end where the bottom end is positioned during machining, machining the top end by utilizing an excircle turning tool, controlling the total length of a workpiece to be within the required range of a final finished product, secondly, drilling an upper outlet hole by using a hard alloy composite tool, and further machining the upper outlet hole by using a boring cutter to obtain a second-stage semi-finished product;

3) and grinding the excircle of the revolving body of the second-stage semi-finished product by using a centerless grinder to finally obtain a finished product.

And 3) carrying out cooling and rust prevention protection on the rotator by using cutting oil during grinding the excircle of the rotator in the step 3).

The drill bit of the flat-bottom drill in the step 1) is a tungsten steel drill bit with a coating, and the boring cutter in the step 2) is a tungsten steel boring cutter with a coating.

Compared with the scheme of processing by two working procedures on a numerical control lathe in the traditional processing, the invention fully utilizes the advantages of high processing speed of the cam type automatic lathe, high grinding quality of the centerless grinding machine and low equipment cost. For the relatively simple characteristics, the cam type automatic lathe is adopted for processing in the first sequence, the efficiency is far higher than that of a numerical control lathe, and the equipment cost is lower; the surface roughness of the finished product is finished by using a centerless grinder, and the method has the characteristics of low cost and high efficiency, and has particularly obvious advantages when processing materials difficult to process.

Drawings

Fig. 1 is a schematic structural view of a resonance rod without flanges according to the present invention.

Fig. 2 is a schematic structural view of the cemented carbide composite tool of the present invention.

In the figure:

the top end 1, go up outlet 2, go down outlet 3, bottom 4, solid of revolution 5, screw via hole 6.

Detailed Description

The present invention will be described in further detail with reference to the following description and embodiments in conjunction with the accompanying drawings.

The utility model provides a processing method of no turn-ups structure resonance bar, the exterior structure of resonance bar is shown in fig. 1, for solid of revolution 5 structure, and its excircle is for leading to the circle, is provided with on the top 1 of solid of revolution 5 and goes out 2, go up to go out 2 and be the step blind hole, be provided with down on the bottom 4 of solid of revolution 5 and go out 3, go up to go out 2 and go out to communicate through screw via hole 6 between 3 down, its processing step is:

1) and machining the bottom end 4 of the revolving body 5 by using a cam lathe: firstly, trimming a bottom end 4 by using a second cutter and carrying out round chamfering, secondly, drilling a lower outlet hole 3 by using a 120-degree drill bit, then, finely machining the lower outlet hole 3 in place by using a flat drill of a tungsten steel drill bit with a coating, thirdly, hooking a screw through hole 6 and chamfering by using a fifth cutter, fourthly, cutting off a revolving body 5 with a margin, and chamfering a cut end by using a third cutter to obtain a semi-finished product in a first stage;

2) and processing the top end 1 of the first-stage semi-finished product by using a numerical control machine: firstly, clamping the end where the bottom end 4 is positioned during machining, machining the top end 1 by using an excircle turning tool, controlling the total length of a workpiece to be within the required range of a final finished product, secondly, drilling an upper hole 2 by using a hard alloy composite cutter, and further machining the upper hole 2 by using a tungsten steel boring tool with a coating to obtain a second-stage semi-finished product;

3) and grinding the excircle of the revolving body 5 of the second-stage semi-finished product by using a centerless grinding machine to finally obtain a finished product, and cooling and protecting the revolving body 5 in an antirust way by using cutting oil when grinding the excircle of the revolving body 5.

Claims

1. The utility model provides a processing method of no turn-ups structure resonance bar, the exterior structure of resonance bar is solid of revolution (5), is provided with on the top (1) of solid of revolution (5) and goes out hole (2), is provided with down on the bottom (4) of solid of revolution (5) and goes up and go out hole (2) and go out through screw via hole (6) intercommunication between hole (3) down, its characterized in that, its processing step is:

1) and machining the bottom end (4) of the revolving body (5) by using a cam lathe: trimming the bottom end (4) by using a second cutter and performing round chamfering, drilling a lower hole (3) by using a 120-degree drill bit, finely machining the lower hole (3) in place by using a flat-bottomed drill, hooking a screw through hole (6) and chamfering by using a fifth cutter, cutting off the revolving body (5) by using a fourth cutter with a margin, and chamfering the cut end by using a third cutter to obtain a semi-finished product in the first stage;

2) and processing the top end (1) of the semi-finished product in the first stage by using a numerical control machine tool: firstly, clamping the end where the bottom end (4) is located during machining, machining the top end (1) by using an excircle turning tool, controlling the total length of a workpiece to be within the range required by a final finished product, secondly, drilling an upper hole (2) by using a hard alloy composite tool, and further machining the upper hole (2) by using a boring tool to obtain a second-stage semi-finished product;

3) and grinding the outer circle of the revolving body (5) of the second-stage semi-finished product by using a centerless grinder to finally obtain a finished product.

2. The processing method of the resonance rod without the flanging structure, according to claim 1, is characterized in that: and in the step 3), when the outer circle of the revolving body (5) is ground, cutting oil is adopted to cool and protect the revolving body (5) against rust.

3. The processing method of the resonance rod without the flanging structure, according to claim 1, is characterized in that: the drill bit of the flat-bottom drill in the step 1) is a tungsten steel drill bit with a coating, and the boring cutter in the step 2) is a tungsten steel boring cutter with a coating.