CN113547284B

CN113547284B - Bolt machining method

Info

Publication number: CN113547284B
Application number: CN202110666773.3A
Authority: CN
Inventors: 张诗伊
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-06-16
Filing date: 2021-06-16
Publication date: 2022-06-10
Anticipated expiration: 2041-06-16
Also published as: CN113547284A

Abstract

The invention discloses a bolt processing method, wherein in each step, a bar stock is extended by a unit length and rotated by 90 degrees, and S1, a groove is processed on a first blank; s2, processing a first step by the first blank, and processing a groove by the second blank; s3, processing a slope on the first blank, processing a first step on the second blank, and processing a groove on the third blank; s4, the first blank is unchanged, the second blank is provided with an inclined plane, the third blank is provided with a first step, and the fourth blank is provided with a groove; s5, processing a hole on the first blank, then or simultaneously processing a second step and cutting off the second step and the bar stock, wherein the second blank is unchanged, the third blank is processed with an inclined plane, the fourth blank is processed with a first step, and the fifth blank is processed with a groove; and then repeats the step of S5. According to the structural characteristics that all structures on the lock tongue are distributed according to the central angle of 90 degrees, the processing steps are reasonably planned, processing of some parts can be simultaneously carried out, the multi-section blank is synchronously processed through continuous rotation and pushing of the bar with the unit length, and the production efficiency is greatly improved.

Description

Bolt machining method

Technical Field

The invention relates to a bolt processing method.

Background

The bolt is processed as shown in figures 1 and 2, the bolt is of a cylindrical structure and comprises a front part and a rear part, a groove, a hole and a first step are formed in the front part, the bottom surface of the first step is perpendicular to the bottom surface of the groove, the hole is formed in the end surface of the front part, a second step is formed in one side of the rear part, an inclined surface is arranged on the other side of the rear part, and the bottom surface of the second step is parallel to the bottom surface of the groove. The prior art adopts a manual one-by-one processing mode for processing the lock tongue, so that the efficiency is low and the production period is long.

Disclosure of Invention

The invention aims to provide a bolt processing method which can effectively solve the problem of low bolt processing efficiency.

In order to solve the technical problems, the invention is realized by the following technical scheme: the spring bolt processing method comprises the following steps of:

s1, extending a circular bar stock by a first blank with a unit length, in the step: processing a groove on the first blank;

s2, rotating the bar 90 degrees along its axis and extending a unit length forward, the extended unit length of bar being the second blank, in which step: processing a first step by a first blank, and processing a groove by a second blank;

s3, the bar continues to rotate 90 degrees along its axis and further projects a unit length forward, the projecting unit length of bar being a third blank, in which step: processing a first blank into an inclined plane, processing a second blank into a first step, and processing a third blank into a groove;

s4, the bar continues to rotate 90 degrees along its axis and further projects a unit length forward, the projected unit length bar being a fourth billet, in which step: the first blank is unchanged, the second blank is processed into an inclined plane, the third blank is processed into a first step, and the fourth blank is processed into a groove;

s5, the bar continues to rotate 90 degrees along its axis and further projects a unit length forward, the projected unit length bar being a fifth billet, in which step: a hole is machined in the first blank, then a second step is machined in the first blank and cut off from the bar stock, the second blank is not changed, an inclined plane is machined in the third blank, a first step is machined in the fourth blank, and a groove is machined in the fifth blank;

s6, processing according to the step S5 in a circulating mode.

Preferably, in the steps S2 to S5, the first step and the groove start to be machined simultaneously or are machined synchronously.

Preferably, in the steps S3, S4 and S5, the inclined surface and the first step of the latch bolt are machined by one tool at a time.

Preferably, in the step S5, the first step, the groove and the second step cut the bar stock and start to process or finish the process simultaneously.

Compared with the prior art, the invention has the advantages that: according to the structural characteristics that all structures on the lock tongue are distributed according to the central angle of 90 degrees, the processing steps are reasonably planned, processing of some parts can be simultaneously carried out, and multiple sections of blanks are processed simultaneously through continuous rotation and pushing of the bars with unit length, so that the production efficiency is greatly improved.

Drawings

Fig. 1 is a schematic structural diagram of a bolt to be processed according to the present invention;

fig. 2 is a perspective view of another angle of the latch bolt requiring machining according to the present invention;

fig. 3 is a schematic structural view of the present invention when the tongue is processed.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

Referring to fig. 1 to 3, the embodiment of the method for processing a bolt according to the present invention, the method for processing a bolt, the bolt being cylindrical and including a front portion 10 and a rear portion 20, the front portion 10 being formed with a groove 11, a hole 12 and a first step 13, a bottom surface of the first step 13 being perpendicular to a bottom surface of the groove 11, the hole 12 being formed on an end surface of the front portion 10, one side of the rear portion 20 being formed with a second step 21, the other side of the rear portion 20 being formed with an inclined surface 22, and a bottom surface of the second step 21 being parallel to the bottom surface of the groove 11, includes the steps of:

s1, extending a circular bar by a first blank 31 per unit length, in which step: the first blank 31 is provided with a groove 11;

s2, from the top view, the billet is rotated 90 degrees clockwise along its axis and extended forward a unit length of the second blank 32, wherein: the first blank 31 is processed into a first step 13, and the second blank 32 is processed into a groove 11;

s3, the bar continues to rotate 90 degrees along its axis and projects a further unit length forward, this unit length of bar projecting being the third blank 33, in which step: a first blank 31 is provided with a bevel 22, a second blank 32 is provided with a first step 13, and a third blank 33 is provided with a groove 11;

s4, the billet continues to rotate 90 degrees along its axis and further projects a unit length forward, this unit length of billet projecting being the fourth blank 34, in which step: the first blank 31 is unchanged, the second blank 32 is provided with the inclined surface 22, the third blank 33 is provided with the first step 13, and the fourth blank 34 is provided with the groove 11;

s5, the bar continues to rotate 90 degrees along its axis and projects a further unit length forward, this unit length of bar projecting being the fifth blank 35, in which step: a hole 12 is machined in a first blank 31, then a second step 21 is machined in the first blank and cut off from a bar stock, the second blank 32 is not changed, a slope 22 is machined in a third blank 33, a first step 13 is machined in a fourth blank 34, and a groove 11 is machined in a fifth blank 35;

s6, repeating the processing steps of S5, since the first blank 31 has been processed and cut, the second blank 32 begins to process the hole 12, then or simultaneously the second step 21 is cut from the bar, the third blank 33 is unchanged, the fourth blank 34 is processed with the inclined surface 22, the fifth blank 35 is processed with the first step 13, the sixth blank is processed with the groove 11, and the processing is repeated until the bar length is not enough to complete the processing steps, and the step S1 is restarted to replace a new bar.

The lines on the bar in fig. 3 are only for convenience to indicate the position of the blank, and no mark on the bar is needed in actual processing.

In the above-mentioned machining process, it is necessary to use four cutters, namely, a cutter 41 for machining the groove, a cutter 42 for machining the first step and the inclined surface, a cutter 43 for machining the second step and cutting off the blank, and a tapping cutter 44.

The highest efficiency among the above steps is that the groove 11, the first step 13 and the second step 21 are processed at the same time and the bar stock processed in all the steps is directly cut off, the time for starting each step can be calculated according to the processing completion required for the groove 11, the first step 13, the hole 12 and the second step 21 and the bar stock cutting, and certainly, the hole 12 is processed when the second step 21 is processed and the bar stock is cut off. If the bar stock is thin, in order to ensure the machining dimensional accuracy, the groove 11, the first step 13, the hole 12 and the second step 21 can be machined respectively by cutting off the bar stock, continuous machining can be realized by adopting the method, and the efficiency can be still greatly improved compared with the method for machining the lock tongues one by one.

The above description is only an embodiment of the present invention, but the technical features of the present invention are not limited thereto, and any changes or modifications within the technical field of the present invention by those skilled in the art are covered by the claims of the present invention.

Claims

1. The bolt processing method is characterized in that the bolt is cylindrical and comprises a front portion (10) and a rear portion (20), a groove (11), a hole (12) and a first step (13) are formed in the front portion (10), the bottom surface of the first step (13) is perpendicular to the bottom surface of the groove (11), the hole (12) is formed in the end surface of the front portion (10), a second step (21) is formed in one side of the rear portion (20), an inclined surface (22) is arranged on the other side of the rear portion (20), and the bottom surface of the second step (21) is parallel to the bottom surface of the groove (11), and the bolt processing method is characterized in that: the method comprises the following steps:

s1, extending a circular bar stock by a first blank (31) of unit length, in which step: a groove (11) is machined in the first blank (31);

s2, the bar is rotated 90 degrees along its axis and extended a further unit length forward, the extended unit length of bar being a second blank (32), in which step: a first step (13) is machined on the first blank (31), and a groove (11) is machined on the second blank (32);

s3, the bar continues to rotate 90 degrees along its axis and projects a further unit length forward, the projecting bar unit length being a third blank (33), in which step: a first blank (31) is processed into an inclined plane (22), a second blank (32) is processed into a first step (13), and a third blank (33) is processed into a groove (11);

s4, the bar continues to rotate 90 degrees along its axis and projects a further unit length forward, the projecting bar unit length being a fourth blank (34), in which step: the first blank (31) is unchanged, the second blank (32) is processed into an inclined plane (22), the third blank (33) is processed into a first step (13), and the fourth blank (34) is processed into a groove (11);

s5, the bar continues to rotate 90 degrees along its axis and projects a further unit length forward, the projected bar unit length being a fifth billet (35), in which step: a hole (12) is machined in a first blank (31), then a second step (21) is machined in the first blank (31) and cut off from a bar stock, the second blank (32) is unchanged, a slope (22) is machined in a third blank (33), a first step (13) is machined in a fourth blank (34), and a groove (11) is machined in a fifth blank (35);

s6, processing according to the step S5 in a circulating mode.

2. The bolt processing method of claim 1, wherein: in the steps S2 to S5, the first step (13) and the groove (11) start to be machined simultaneously or are finished simultaneously.

3. The bolt processing method of claim 1, wherein: in the steps S3, S4, and S5, the inclined surface (22) and the first step (13) of the latch bolt are processed by one tool at a time.

4. The bolt processing method of claim 1, wherein: in step S5, the first step (13), the groove (11), and the second step (21) are cut and the bar stock is simultaneously processed or simultaneously processed.