KR20230081925A - Manufacturing method of parts to be welded for condenser welding machine - Google Patents

Abstract

The present invention relates to a method of machining and manufacturing a part to be welded of a capacitor welding machine which eliminates conventionally performed heat treatment processes and discharge and wire processes and changes primary and secondary shape machining to single shape machining when machining a part to be welded for capacitor welding to reduce costs and improve cycle time by process improvement and improve key performance such as flatness and machining performance of shapes with high levels of difficulty. The method of machining and manufacturing a part to be welded of a capacitor welding machine comprises: a shape machining process of machining the shape of a part to be machined; a grinding process of grinding the part to be machined of which the shape machining process is completed; a post-treatment process of performing a coating treatment by a latent method to supplement the surface hardness of the part to be machined which is ground through the grinding process; and a final assembly process of assembling the part to be machined which is machined and manufactured through the shape machining process, the grinding process, and the post-treatment process by using a jig for assembly.

Description

Manufacturing method of parts to be welded for condenser welding machine}

The present invention relates to a method for processing and manufacturing a welded part (hereinafter referred to as a 'part to be processed') to be welded through a capacitor welder in the fields of semiconductors, automobiles, and secondary batteries, and more particularly, for capacitor welding. In the processing of parts to be welded, by eliminating the heat treatment process, electrical discharge and wire processes previously performed, and changing the 1st and 2nd shape processing to single shape processing, cost reduction and cycle time are improved by process improvement, and at the same time, high level of difficulty It relates to a processing and manufacturing method of welded parts of a condenser welding machine with improved core performance such as shape processing performance and flatness.

In general, looking at a process for processing and manufacturing a welded part in which welding is performed through a capacitor welder in the fields of semiconductors, automobiles, and secondary batteries, as shown in FIG. The shape processing step (S10), the heat treatment step (S20) of increasing the hardness by heat-treating (surface or vacuum method) the part to be processed on which the first shape processing step (S10) has been completed, and the heat treatment step (S20) A discharge and wire process (S30) performed for smooth cutting of the part to be processed, and a second shape processing process (S40) of finishing and shaping the part to be processed after the discharge and wire process (S30) A polishing step (S50) of polishing the target part for which the secondary shape processing has been completed, and a post-processing step (S60) of coating the target part for surface hardness after the polishing step (S50), After the post-processing step (S60), a final assembly step (S70) of assembling final parts through fastening members to complete a processed product is included.

In such a conventional processing and manufacturing process of parts to be welded,

In particular, in the heat treatment process (S20), in the case of the part to be processed for capacitor welding, the firstly shaped metal material is in a soft state, and in order to perform the secondary shape processing (finishing), hardness (Hardness) It is common to have to reinforce

In the heat treatment process, vacuum heat treatment method and surface heat treatment method are applied depending on the type of part and processing conditions. The method has a low possibility of shape deformation, but has the opposite character of remarkably degrading workability.

Such a heat treatment process can secure the required hardness due to the heat treatment process, but depending on the heat treatment method, side effects such as deformability and deterioration of workability occur during subsequent shape processing, resulting in difficulties in managing the subsequent process and various types of product defects. (shape deformation, lack of required performance, etc.), the demand for fundamental process innovation has been continuously raised.

In particular, due to the heat treatment process (S20), the primary shape processing process (S10) and the secondary shape processing process (S40) are physically separated, reducing the work continuity of the shape processing, and thus the additional process, the discharge and wire process (S30). ) is unavoidable, and the additional cost related to it accounts for about 15~20%, resulting in a substantial increase in product manufacturing cost.

Registered Patent Publication No. 10-1416885 (registration date July 02, 2014) Registered Patent Publication No. 10-2104998 (Date of registration: April 21, 2020) Registered Patent Publication No. 10-1416885 (registration date July 02, 2014)

The present invention was invented to solve the above problems, and an object of the present invention is to eliminate the heat treatment process, electric discharge and wire process previously performed in the processing of welded parts for capacitor welding, and to perform primary and secondary shape processing. By changing to single shape processing, cost reduction and cycle time due to process improvement are improved, and at the same time, processing performance of high-difficulty shapes and core performance such as flatness are improved.

The present invention for achieving the above object is a shape processing step of processing the shape of the part to be processed; a polishing step of polishing the part to be processed after the shape machining step is completed; a post-processing process of coating in a radiant manner to supplement the surface hardness of the part to be processed through the polishing process; And a final assembly process of assembling the parts to be processed manufactured through the shape processing process, polishing process, and post-processing process using an assembly-only jig,

The shape processing process includes a first step of selecting a material and setting a machine tool (and a jig tool); A second step of setting detailed cutting patterns according to multi-cutting; A third step of selecting a bite for cutting according to the processing part; A fourth step of multi-cutting using the selected cutting bite; and a fifth step of measuring the flatness of the part to be processed at regular time intervals after the multi-cutting process.

In addition, according to the present invention, the detailed cutting pattern of the second step of the shape processing process is characterized in that it includes cutting strength RPM, cutting depth and cutting speed.

In addition, according to the present invention, the selection of the cutting bite according to the machining part in the third step of the shape machining process is characterized in that the material and shape are determined using the cutting speed, depth, and machining precision for each machining part.

In addition, according to the present invention, the multi-cutting process of the fourth step of the shape processing process,

It is composed of a combination of depth of cut per cut, number of cuts, cutting strength, and cutting speed, and is characterized in that it is combined according to the material characteristics of the machine tool and the part to be processed.

In addition, according to the present invention, in the flatness measurement step of the fifth step of the shape machining process, the measurement position is uniformly set on multiple parts of the surface of the part to be processed, and the measurement is performed using a measuring device at regular time intervals, but multiple cutting is performed. It is characterized by repeated parallel processing with processing.

As such, the present invention provides advantages of cost reduction and cycle time improvement according to process improvement, and at the same time, core performance such as high-difficulty shape processing performance and flatness are improved.

In addition, the present invention can minimize measurement errors due to step-by-step measurement of flatness.

In addition, the present invention can directly eliminate defects such as clamp cracks generated in relation to the heat treatment process.

1 is a process chart of a manufacturing method for manufacturing a welded part of a conventional condenser welding machine;
2 is a process chart of a manufacturing method for processing and manufacturing a welded part of a capacitor welding machine according to the present invention;
3 is a detailed step-by-step process diagram of the shape processing process according to the present invention;
4 is a configuration diagram of a machine tool and a part to be processed to which the present invention is applied;
Figure 5 (a) (b) is an embodiment of the part to be processed according to the present invention,
Figure 6 (a) (b) is a configuration diagram of the setting of the processing part and cutting bytes of the part to be processed according to the present invention,
7 is a view showing a flatness measurement method according to the present invention;
8 is a view showing a bucking jig as an auxiliary device according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

First, in adding reference numerals to components of each drawing, it should be noted that the same components have the same numerals as much as possible, even if they are displayed on different drawings. And, in describing the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description will be omitted.

2 is a process chart of a manufacturing method for processing a welded part of a capacitor welder according to the present invention.

As shown, the manufacturing method of the welding parts of the condenser welding machine of the present invention,

It includes a shape processing process (S110), a polishing process (S120), a post-processing process (S130) and a final assembly process (S140).

According to the present invention, the part to be processed 10, which is a part to be welded for welding a capacitor, includes a body part 11 and an adjusting part 12 as shown in FIGS. 4 and 5 (a) (b), and the adjusting part (12) is an auxiliary part that plays a role in adjusting the final assembly of the body part 11, and is generally used in the part where the body part 11 is seated, so it should have better hardness than the body part 11 and have a high level of dimensional accuracy. ask for

In addition, the part to be processed 10 including the body part 11 and the adjusting part 12 is molded through a predetermined machine tool 20 .

The shape processing step (S110) is a process of shape processing the part to be processed,

As shown in FIG. 3, the first step (S111) of selecting materials and setting machine tools (and jigs), the second step (S112) of setting detailed cutting patterns according to multi-cutting, and cutting bytes according to processing parts A third step of selecting (S113), a fourth step of multi-cutting using the selected cutting bite (S114), and a fifth of measuring the flatness of the part to be processed at regular time intervals after the multi-cutting. Step S115 is included.

The first step (S111) is a process of selecting a material and setting a machine tool (and a jig), and the material (raw material) of the part to be processed 10, which is a part to be welded, and the process to process the part to be processed 10 Set by combining the machine 20 and the jig tool.

The reason for setting the material of the part to be processed 10 in combination with the machine tool 20 and the jig tool is to set the machine tool 200 and the jig tool that can exhibit the most optimal machining performance according to the material (metal). is to do

The second step (S112) is a process of setting a detailed cutting pattern according to multiple cutting,

A detailed cutting pattern of the part to be processed 10 is set. The cutting pattern is to set a cutting pattern according to the processing part 13 as shown in (a) of FIG. 6, and includes cutting strength RPM, cutting depth, cutting speed, and the like.

In addition, as shown in (b) of FIG. 6, this is to take into account that the processing precision required for each processing part 13 is different. Parts with high precision require special machining.

The third step (S113) is a process of selecting a cutting bite according to the processing part. As shown in FIG. 6 (a), the cutting bite 14 according to the cutting part 13 of the part 10 to be processed is The material and shape are determined in consideration of the cutting speed, depth, and processing precision for each processing part 13 .

In addition, the material of the cutting bite 14 may be ceramic, diamond, high-speed steel (SKH), cast hard alloy, cermet, or the like.

The fourth step (S114) is a process of multi-cutting using the selected cutting bite 14,

In order to secure flatness, cutting is performed by considering the correlation between the level of flatness and the appropriate machining time.

That is, the multi-cutting is composed of a combination of depth of cut, number of cuts, cutting strength, and cutting speed, but since these components show different relationships with core performance and processing time after the cutting process, the machine tool (20 ) and the material characteristics of the part to be processed 10 should also be considered and combined.

The fifth step (S115) is a process of measuring the flatness of the part to be processed at regular time intervals after the multi-cutting process.

That is, the flatness measuring process is a process performed to determine whether the part to be processed 10 is deformed in the process of performing the multi-cutting process (S114).

As shown in FIG. 7, the flatness measurement is performed by uniformly setting measurement positions on multiple parts of the surface of the part to be processed 10 and using the measuring instrument 16 at regular time intervals.

In addition, this flatness measurement is repeatedly processed in parallel with multi-cutting, and finally, the shape processing of the part to be processed 10 is completed.

In addition, according to the present invention, before the fourth step (S114) of multi-cutting, a sixth step (S116) for applying an auxiliary device may be further included.

The sixth step (S116) is a process for applying an auxiliary device,

During the tapping operation of the part to be processed 10, a die dedicated to the tapping device is constructed, but it is configured as a bucking jig as shown in FIG. 8.

The bucking jig eliminates manual work by adsorbing using air and applies a certain external force to minimize deformation and shorten work time.

Therefore, it solves the problem of the vise jig method in the MCT process in which problems continuously occur due to the difference in the degree of warpage and flatness for each part thickness (0.2 ~ 1T) during the existing primary shape processing.

The polishing process (S120) is a process of polishing the part to be processed 10 after the shape processing process (S110) is completed.

The post-processing process (S130) is a process for supplementing the surface hardness of the part to be processed 10 polished through the polishing process (S120), and the main body 11 and the adjustment unit ( 12) is coated in a radant method.

The radiant coating treatment maintains a constant tolerance after post-treatment, reduces abrasion, extends product life, and prevents static electricity. It also has excellent corrosion resistance and minimizes dust.

In addition, an additional coating process may be further included in the post-treatment process (S130).

The additional coating process may be DLC coating, thermal spray coating, and CNT coating.

In addition, DLC coating is a coating in a vacuum state using diamond and carbon gas, and has excellent wear resistance, extended durability, chemical resistance and corrosion resistance.

The thermal spray coating is instantly sprayed with a high-temperature flame of 600 to 1300 degrees using DE and DP resin materials, and is a pollution-free, non-toxic, and eco-friendly method.

The CNT coating prevents static electricity and forms a coating film having a degree of precision, and is widely used in the semiconductor and chemical fields.

The final assembly process (S140) is a process of assembling the part to be processed 10 manufactured through the shape processing process (S110), polishing process (S120), and post-processing process (S130), using an assembly-only jig. It is a process to assemble.

The assembly-only jig has a structure capable of fine-adjusting the position of a pin when fastening bolts for each component, and is configured to enable fine-adjustment for an allowable discrepancy interval.

The assembly-only jig is developed through analysis of applicable jig shapes for each handler case, improves assembly quality (assembly tolerance), and reduces work manpower and final assembly time.

Therefore, when assembling completed final parts, the conventional all-in-one method eliminates the hassle of returning to the previous process and performing reprocessing in case of bolt fastening failure, and the problem of requiring a large number of workers to set the handler required for assembly and the assembly accuracy , the problem of low efficiency is solved.

In the above, limited embodiments of the present invention have been described, but those skilled in the art should note that the present invention is not limited thereto and various embodiments are expected.

Claims (5)

A shape processing step of shape processing a part to be processed;
a polishing step of polishing the part to be processed after the shape machining step is completed;
a post-processing process of coating in a radiant manner to supplement the surface hardness of the part to be processed through the polishing process; and
Including a final assembly process of assembling the parts to be processed manufactured through the shape processing process, polishing process, and post-processing process using an assembly-only jig,
The shape processing process,
The first step of selecting materials and setting up machine tools (and jigs);
A second step of setting detailed cutting patterns according to multi-cutting;
A third step of selecting a bite for cutting according to the processing part;
A fourth step of multi-cutting using the selected cutting bite; and
Processing and manufacturing method of a part to be welded by a condenser welding machine, characterized in that it comprises a fifth step of measuring the flatness of the part to be processed at regular time intervals after the multi-cutting process.
The method of claim 1,
The detailed cutting pattern of the second step of the shape processing process includes cutting strength RPM, cutting depth and cutting speed.
The method of claim 1,
Selecting a cutting bite according to the processing part of the third step of the shape processing process,
A method of processing and manufacturing a welded part of a condenser welding machine, characterized in that the material and shape are determined using the cutting speed, depth, and processing precision of each processing part.
The method of claim 1,
The multi-cutting process of the fourth step of the shape machining process,
A method for processing and manufacturing welded parts of a condenser welding machine, which is composed of a combination of depth of cut per cut, number of cuts, cutting strength, and cutting speed, characterized in that the combination is made according to the material characteristics of the machine tool and the part to be processed.
The method of claim 1,
The flatness measurement process of the fifth step of the shape processing process,
Condenser welding machine processing and manufacturing method of parts to be welded, characterized in that the measurement position is uniformly set on multiple parts of the surface of the part to be processed and measured using a measuring instrument at regular time intervals, but repeatedly processed in parallel with multiple cutting processes. .

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