Small thread machining method

Abstract

The invention relates to the technical field of machining, and discloses a small thread machining method which comprises the following specific steps: step 1, chamfering machining: segmenting a thread according to the length of the thread, and dividing the thread into a thread machining unit according to the length of 2-3mm; secondly, the outer diameter of a first unit thread is machined; thirdly, the outer diameter # imgabs0 # 1 of a second unit is machined; and fourthly, a second unit thread is turned. According to the small thread machining method, a thread is machined in a sectional mode and divided into length units according to the length of 2-3 mm, firstly, a chamfer part is machined so as to prevent the situation that after the outer diameter of the thread is machined, a turning chamfer is broken due to the fact that a rod is too thin, after the outer diameter of the thread of the first unit is turned, an M1X0.25 thread is directly turned, and after turning is completed, the outer diameter of the thread of the second section is directly turned. The thread turning tool is used for re-picking the machined thread to eliminate jumping and prevent breakage, then the second section of thread is directly turned, the method can meet the precision requirement, the thread part is smooth and not jammed through inspection, and the production requirement can be met.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical processing, in particular to a small thread processing method. Background Art

[0002] Lead brass (HPb59-1) has good machinability, good mechanical properties, good electrical and thermal conductivity, corrosion resistance, high strength and toughness, so it is widely used in mechanical processing. Threaded connection, as one of the important ways of mechanical connection, occupies an important position in mechanical connection.

[0003] When turning small threads, especially small threads below M1.2, within 2mm in length, die is usually selected. However, in actual processing, the root of the threaded rod is too thin and lacks rigidity, and it frequently breaks when threading. Therefore, small thread processing has always been a difficult point in mechanical processing. Summary of the invention

[0004] 1. Technical issues to be resolved In view of the deficiencies in the prior art, the present invention provides a small thread processing method, which has the function of segmented thread processing, dividing the thread into a length unit according to 2-3mm, first processing the chamfered part to prevent the chamfer from breaking due to the rod being too thin after the outer diameter of the thread is processed, and directly turning the M1X0.25 thread after turning the outer diameter of the first unit thread, and then directly turning the outer diameter of the second section of the thread, and using a thread turning tool to re-pick the processed thread to eliminate runout and prevent breakage, and then directly turning the second section of the thread. This method can meet the precision requirements, and after inspection, the thread part is smooth and not stuck, which can meet the production requirements.

[0005] (II) Technical solution To achieve the above-mentioned purpose, the present invention provides the following technical solution: a small thread processing method, the specific steps are: Step 1: Chamfering: Divide the thread into segments according to the thread length, and divide it into a thread processing unit according to 2-3mm, and perform chamfering first; Step 2: Process the outer diameter of the first unit thread and process the M1X0.25 thread; Step 3: Process the outer diameter of the second unit 1. Use a thread turning tool to re-pick the processed threads to eliminate runout and prevent breakage; Step 4: Turn the second unit thread and re-pick the first unit thread from the beginning to prevent it from jumping and breaking when turning the second section of the thread. When the first section of the thread is re-picked, directly process the second section of the thread to complete the thread processing.

[0006] Preferably, the thread of the threaded shaft segment is divided into a processing unit according to 2-3 mm.

[0007] Preferably, the threaded port is chamfered and turned in place to prevent the thread from breaking due to chamfering after turning the thread.

[0008] Preferably, the first unit thread outer diameter is first turned 1. Turn the first unit M1X0.25 thread.

[0009] Preferably, the outer diameter of the second unit thread is turned 1. Start again from the end of the first unit thread. The purpose is to pick again to prevent breakage due to jumping when turning the second unit thread.

[0010] Preferably, after the first unit thread is re-selected, the second unit thread is turned until the thread processing is completed.

[0011] (III) Beneficial effects Compared with the prior art, the present invention provides a small thread processing method, which has the following beneficial effects: 1. This small thread processing method processes the thread in sections, dividing it into a length unit of 2-3mm. First, the chamfered part is processed to prevent the chamfer from breaking due to the rod being too thin after the outer diameter of the thread is processed. After turning the outer diameter of the first unit thread, the M1X0.25 thread is directly turned. After completion, the outer diameter of the second section of the thread is directly turned. The processed thread is re-picked with a thread turning tool to eliminate runout and prevent breakage, and then the second section of the thread is directly turned. This method can meet the precision requirements, and after inspection, the thread part is smooth and not stuck, which can meet the production requirements.

[0012] 2. This small thread processing method has the advantages of simple operation, reasonable step design, strong operability, high production efficiency and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is the schematic diagram of the first unit of thread processing; Figure 2 This is a schematic diagram of the second unit of thread processing. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0015] See also Figure 1-2 , a small thread processing method, 1. The specific steps are: Step 1: Chamfering: Divide the thread into segments according to the thread length, and divide it into a thread processing unit according to 2-3mm, and perform chamfering first; Step 2: Process the outer diameter of the first unit thread and process the M1X0.25 thread; Step 3: Process the outer diameter of the second unit 1. Use a thread turning tool to re-pick the processed threads to eliminate runout and prevent breakage; Step 4: Turn the second unit thread and re-pick the first unit thread from the beginning to prevent it from jumping and breaking when turning the second section of the thread. When the first section of the thread is re-picked, directly process the second section of the thread to complete the thread processing.

[0016] It should be noted that the term "comprises" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process, method, article, or device that includes a series of elements includes not only those elements, but also includes other elements that are not explicitly listed, or also includes elements inherent to such process, method, article, or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article, or device that includes the element.

[0017] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A small thread processing method, the specific steps are: Step 1: Chamfering: Divide the thread into segments according to the thread length, and divide it into a thread processing unit according to 2-3mm, and perform chamfering first; Step 2: Process the outer diameter of the first unit thread and process the M1X0.25 thread; Step 3: Process the outer diameter of the second unit 1. Use a thread turning tool to re-pick the processed threads to eliminate runout and prevent breakage; Step 4: Turn the second unit thread and re-pick the first unit thread from the beginning to prevent it from jumping and breaking when turning the second section of the thread. When the first section of the thread is re-picked, directly process the second section of the thread to complete the thread processing.

2. A small thread processing method according to claim 1, characterized in that: The thread of the threaded shaft section is divided into a processing unit according to 2-3 mm.

3. A small thread processing method according to claim 1, characterized in that: The threaded port is chamfered and turned in place to prevent the thread from breaking due to chamfering after turning the thread.

4. A small thread processing method according to claim 1, characterized in that: First turn the outer diameter of the first unit thread 1. Turn the first unit M1X0.25 thread.

5. A small thread processing method according to claim 1, characterized in that: Then turn the second unit thread outer diameter 1. Start again from the end of the first unit thread. The purpose is to pick again to prevent breakage due to jumping when turning the second unit thread.

6. A small thread processing method according to claim 1, characterized in that: After finishing the first unit thread, start turning the second unit thread until the thread processing is completed.

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