JP2002133028A - Method for analyzing element part and system for improving part manufacturing work - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a manufacturing system in which a small number of production engineers can improve productivity integrally including a subcontractor maker and a tool maker. SOLUTION: This part manufacturing work improvement system by an element part analyzing method divides the machining work of respective components of a product consisting of many kinds of parts into working elements, classifies the respective divided working elements in each different function to concentrate the working elements into the element part of each working function common to the components, applies a work analysis and work improvement to the respective concentrated element parts, and stores the work improvement data of each element part in a server. A part manufacturing site or a production technique side having the working elements of the respective corresponding element parts reads the work improvement data stored in the server via a communication network and utilizes the work improvement data for the work improvement of the respective processing elements.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a work improvement system for improving a parts manufacturing work by utilizing an information communication network.

[0002]

2. Description of the Related Art Conventionally, there has been an improvement in a part manufacturing operation at a production site using an IE technique. That is, the department in charge of production technology conducts a work study of the manufacturing site, and prepares standards for processing, assembling methods, used machines, jigs and tools, their arrangement and mounting, etc., and field workers perform work according to the standards. By doing so, productivity will be improved.

As a specific example, a case of a steam turbine will be described. In a steam turbine, a casing, a rotor, blades, and the like are machined from a raw material, a completed part is assembled, and a gap between the parts is adjusted to produce a product. The components of this steam turbine are composed of about 3,000 types and 40,000 to 80,000 parts, and it takes 50,000 to 100,000 hours to complete the material to the product. The improvement of the productivity of the large-sized product is performed for each part, and the high-pressure outer casing will be described as an example.

[0004] In FIG. 7, first, a production engineering staff 51
Goes to the work station 10 and performs recording of the used jigs and measurement such as measurement and machining time for each unit operation while observing the machining status. After that, we analyze the work on the desk and see if we can improve the jigs or apply new tools.
A method for reducing the number of processing steps is devised by referring to the point of improvement by the IE method, such as whether the number of times of tool change or the processing path cannot be reduced by changing the processing procedure, and whether there is no wasteful or unreasonable operation. Then, for example, if a method capable of reducing the time required for processing the high-pressure outer casing 11 from 850 hours to 600 hours has been devised, the production engineer 51 will discuss with the NC programmer 52 the new method devised. And issue a new NC program and tooling sheet. The NC programmer 52 explains and instructs the worker 12 on a new work procedure, and the improvement of the high-pressure outer casing processing is temporarily finished. Other low-pressure outer casings, bearing stands, low-pressure rotors, etc. are similarly improved to reduce man-hours. In the order-receiving manufacturing industry, it is common to improve productivity in this way.

[0005]

However, the above-mentioned prior art has the following problems. (1) Since work observation and work analysis are performed over the entire work process of all parts constituting a product, and improvement points are examined for each work, a large amount of time is required until an improvement effect is obtained. For example, a high-pressure casing of a steam turbine requires two to three months. It takes several years to improve the operation of all parts even with few production engineers. (2) Since work improvement is performed for each specific work, horizontal development of the improvement effect on similar work depends on human information exchange through hearing and the like.
Not sure. (3) Since the manufacturing process is diversified, technical guidance cannot be provided to all the work stations, and a technical difference is generated between the work station that has been improved and the place where it has not been improved. (4) Generally, there is no appropriate production engineer at the subcontractor, so it is common for the production engineer of the ordering company to visit and provide guidance. In many cases, it is not possible.

[0006] In view of the above problems, the present invention utilizes information communication technology, which has been rapidly advanced in recent years, so that required information can be obtained quickly.
Providing a manufacturing work improvement system that can be reliably transmitted and that the site workers not only perform the work in accordance with the standard work procedures but also call up and refer to information on similar work as needed to improve the work in charge. The purpose is to do.

[0007]

In order to achieve the above object, the processing work of each component of a product composed of various parts is divided into processing elements, and each of the divided processing elements is classified by function. Dividing and consolidating into element parts for each processing function common to the component parts, performing work analysis and work improvement for each of the consolidated element parts, accumulating work improvement data for each element part in a server, The work improvement data stored in the storage device is read out by a manufacturing site or a production technology side of a part having a processing element of each corresponding element part via a communication network, and is used for work improvement of each processing element. We propose a part manufacturing work improvement system by element part analysis method.

In this system, the machining operation of each component part of a product composed of various types of parts is divided into machining elements, and each of the divided machining elements is classified by function and the machining function common to the component parts is divided. In order to perform work analysis and work improvement for each of the consolidated element parts, all workers corresponding to the respective processing elements for the common work element must be quickly, easily, and technically integrated. Everyone can know the know-how, and everyone can make products and parts by referring to the work improvement of common element parts.
Also, when developing new technologies, we analyze the component parts of parts so that we can quickly teach information, create standard work procedures, parts setup procedures, and tool tables for each element and store them in the server. The worker can read and refer to these at any time, and can also transmit information such as work results. Further, since the improvement results are stored in the server, all the workers corresponding to the respective processing elements can confirm the common working elements as they are.

As will be described later in detail, the element part analysis method is for analyzing a part from the viewpoint of machining. For example, elemental analysis of a large steam turbine revealed that about 3000 types of parts consisted of 63 elemental parts. Therefore, if the production technology is intensively improved for these 63 element parts, 3000
The improvement can be applied to all kinds of parts. The machining time for these 3000 parts is about 40,000 to 50,000 hours,
The content is about 50% of actual machining time and about 15% of setup time
(Work attachment, removal, centering, preparation work) The actual machining time of about 2 to 25,000 hours corresponds to
This is the total of the element part processing time of No. 3. The total of 63 machining times for each element part was 127 hours. Therefore, if the processing time of only 127 hours is thoroughly observed, analyzed, and improved, an improvement effect can be expected for all parts by the improvement effect ratio.

In the prior art described above, there are 5,000 to 6,000 processing steps for a large-sized steam turbine, and enormous data input is required to obtain work data for each step and to create a database. Searching data takes a lot of time, and it takes time to perform technical revision work such as standard work procedures. According to the element site analysis method, for example, in the case of a large steam turbine, only the 63 element sites need to be observed and analyzed.
The time required for the analysis is significantly reduced. In addition, an operator having a certain level of skill can sufficiently contribute to improving the production efficiency of component processing by applying the processing technology of the element part.

A standard work procedure for element parts, a tool database for each element part, and a standard setup procedure are prepared by the element part analysis. Includes work situation imaging with a digital camera and input materials via a scanner.

Each work station at the site is provided with a terminal, and the operator calls up the procedure manual or the like to the terminal at any time by using, for example, a wireless mobile communication terminal in an Internet mode, or refers to the work status from the terminal. Can be sent. Further, the data transmitted from the terminal to the server side includes the processing time of a part, the processing time of each element part, the type and number of tools, and the server stores the latest data, and uses the stored data. Statistical time management.

[0013] These data are stored in a server by dividing or masking the parts into parts that can be called by the in-house manufacturing site or the production technology side and parts that can be called by the subcontractor or tool maker. Access to only the data needed for In this way, the orderer, the outsourcing, and the tool maker can be integrated to improve the productivity.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to an embodiment shown in the drawings. However, dimensions, materials, shapes, relative positions, and the like described in the embodiments are not intended to limit the scope of the present invention, but are merely illustrative examples, unless otherwise specified. FIG. 1 shows a configuration of a manufacturing system by an element part analysis method using an information communication network according to an embodiment of the present invention, and FIG. 2 shows a configuration of an outsourcing maker and a tool maker connected to the configuration of FIG.

In FIG. 1, the production management office is provided with personal computers 1 and 1 ′, a database server 2, and a search server 2 ′. In the factory, a mobile terminal 8, 8 'and a mobile communication device (PHS) 9, 9' are provided at a work station 10 of a machine factory and a work station 10 'of an assembly factory. The mobile terminals 8 and 8 'are mobile terminals of the Internet mode function or DoPa type mobile terminals, and are configured to be able to transmit and receive data by mobile communication devices (PHS) 9, 9' such as PHS. These terminals are provided for each work station. 3 is a PHS and LAN connection device, 4 is a PHS exchange, and 5 is a PHS antenna. The machining worker 12 of the unit component (high pressure outer casing) 11 and the assembly worker 12 'of the unit component (low pressure rotor) 11' are the PHS 9,
9 'enables connection to the personal computers 1, 1' and the servers 2, 2 ', and allows work improvement information to be described later to be sent and received at any time. The received information is displayed on the display devices of the terminals 8, 8 '.

The operator reads out the standard work procedure, the standard setup procedure, the tool database for each standard part, etc. by using the PHS 9, 9 'as necessary before or during the processing.
5 can be displayed on the mobile terminals 8 and 8 ', and after the work is completed, the processing or assembly time of parts, the processing time of element parts, the use, the type and number of borrowed tools, and the like are displayed on the mobile terminal. Machine 8, 8 '. In this way, the operator can work station 10, 10
The productivity can be dramatically improved by easily and quickly viewing a guidebook or the like in which the latest technical information is incorporated in the terminal devices 8 and 8 '. As will be described later, since the guidebook and the like are created for each element site, information in only a necessary range can be easily called.

It is necessary to prepare the standard manuals and the like so that workers can easily understand them. FIG. 3 is a diagram showing an outline of a procedure for creating the standard manual and the like. First, all parts to be machined at the factory are listed, and an element part analysis 21 for classifying the machining parts of each part into a common machining element is performed.
Next, a production engineer performs time observation, work analysis, and various improvements 22 at the time of processing for each element part. These improvements repeat the work on site and work analysis spirally to come up with faster methods and construction methods. The results are summarized in the standard operation manual 23 for the element part. Based on this standard work procedure 23 (for example, a procedure for 63 element sections in the case of a large steam turbine), a tool database 24 is created for each element section. The tool database 24 for each element site enables a search from the tool side of the operator, and also serves as basic data for tool inventory management, budget management, and the like.

Further, with regard to the setup of parts, analysis and improvement 25 of the setup procedure which allows faster processing and assembly with a minimum number of jigs are performed, photographing is performed by a digital camera, and a standard setup procedure 26 is prepared. The standard work procedures for the element parts, the tool database for each element part, and the standard setup instructions 20 are input to the personal computer 1 using the digital camera 13 and the scanner 14 (FIG. 1). To the server 2 for storage.

The workers 12, 12 'make inquiries about "standard work procedure", "standard setup method", and "tool database for each element part" before or during machining. After the work is completed, the “portion processing time”, “processing time for each element part”, “use
Input 66 of “Type and number of borrowed tools”. These contents are stored in the PHS connected to the portable terminals 8, 8 '.
It is transmitted to the PHS exchange 4 via the PHS antenna 5 by radio from 9, 9 '. From the PHS exchange 4, the L
The communication signal conversion for connecting to the AN6 is performed by the PHS-L.
The communication is performed by the AN connection device 3 and communicates with the database server 2 connected to the LAN 6. The terminal 8,
The data input from 8 'is sent to the management station 62, analyzed by the personal computer 1', and utilized for the subsequent creation of factory operation guidelines. In the embodiment, the machining and the assembling work have been described. However, it goes without saying that the system of the present invention can be applied to a casting operation, a welding operation, and the like. The database server 2 stores 20 data such as a standard operation manual for each element part, a tool database for each element part, and a standard setup instruction manual in the form of HTML text data.

On the other hand, in the personal computer 1, 20 data, such as standard operation manuals for each element part, tool database for each element part, and standard setup instructions stored in the database server 2, are grouped for each element part. As shown in FIG. 5, there is provided a homepage formed by grouping the groove processing as an upper layer and the groove processing type such as a labyrinth groove as a lower layer.

On the other hand, the mobile terminal at each manufacturing site is provided with a WWW browser as search software for browsing the homepage of the database server 2 provided at the management office.

In the case of a product maker, it is general that the ratio of ordering to a subcontractor is large, and the number of subcontractors is also large.
Therefore, reliable and prompt communication of information with the outsourcing manufacturer is indispensable for improving productivity. In addition, large-sized special tools are often used for large-sized product manufacturing, and close cooperation with a tool maker is necessary to eliminate lost time due to tool waiting. As shown in FIG. 2, by exchanging information with the outsourcing maker and the tool maker through the Internet via the router 7 connected to the LAN 6, the information can be reliably and promptly communicated. In FIG. 2, reference numeral 41 denotes an outsourcing maker, 42 denotes a tool maker, 43 and 44 denote the outsourcing maker and the tool maker's modem (a terminal adapter in the case of an ISDN line),
PCs 5 and 46 are provided with WWW browsers as search software for browsing the homepage of the database server 2 provided on the management office side.

The outsourcing maker 41 is created by the product maker using the personal computer 45 and divided into layers or masked by the outsourcing maker and the tool maker using a homepage or an encryption method, and is stored in the database server 2. For example, if groove processing is grouped as the upper layer and the groove processing type such as labyrinth groove as the lower layer, only the parts that need to be processed by encrypting the in-house processed parts and tool manufacturer names Access is provided, and by obtaining the latest technical information necessary for the subcontractor or tool maker, it is possible to resolve the discrepancy caused by the technical difference between the product maker and the subcontractor. For technical items that cannot be transmitted simply by information communication through a personal computer, production engineers of product manufacturers sometimes go to subcontractors to provide practical guidance, but human input can be expected to be much less than before. . As described above, the integration of the product maker and the outsourcing maker through the information communication network can contribute to a dramatic improvement in productivity.

Further, the product maker receives the input of the tool use status from the work station 10 and creates a database on the personal computer 1 'of the management station 62. When the stock becomes smaller than the allowable value, the order is automatically ordered to the personal computer 1'. The instruction is displayed, and the necessary tool name, quantity, and delivery date are immediately transmitted to the personal computer 46 of the tool maker 42 via the ordering department. In this way, tool inventory, registration and order management can be performed reliably by linking with the tool manufacturer via the Internet, reducing indirect staffing and increasing machine operating time due to the elimination of tool waiting time. And productivity is improved.

Next, a description will be given of an element part analysis technique which is indispensable to the manufacturing system of the present invention. The element part analysis method divides the types of processing performed on the component parts into common processing types, divides them into processing elements that indicate what type of processing each processing type consists of, and divides the component parts into these processing types. This is regarded as accumulation of element parts where elements are processed. FIG. 4 is a flow chart for estimating the expected machining time by preparing standard work procedures for element parts and improving machining of parts. FIG. 5 shows the classification of the type of processing common to the component parts and the classification of the processing elements, that is, element parts. FIG. 6 shows the classification of the processing parts common to the component parts in order to see from the viewpoint of the processing machine. It is shown in the example of the case of the steam turbine whether it is processed by various processing elements.

In FIG. 4, first, the target parts are listed up 27, the machining type is classified 28, the element parts are analyzed 29, and the machine type element part list 31 and the parts specific element list 35 are created. I do. Taking a steam turbine as an example, the target components include 3000 types such as a high-pressure rotor, a low-pressure rotor, a high-pressure outer casing, a low-pressure outer casing, and a low-pressure inner casing.
When the processing types common to the component parts were classified, there were 22 types such as outer diameter processing, groove processing, plane processing, hole processing, and reamer processing, as partially shown in FIG.

Next, the machining shape of the target part was investigated for each machining type, and a portion machined by a representative machining element was defined as an element portion. For example, an outer peripheral straight line, a simple side surface, a side surface with an R, etc. as an element portion for outer diameter machining, a labyrinth groove, a locking groove, a seal strip groove, a T-root blade groove, etc. Through holes, blind holes, φ40 or less, φ40 as element parts for reaming, welding planes, etc.
As a result of the element part analysis as described above, 63 kinds of element parts were obtained. The results of this analysis are summarized in a component-specific component list as described above. From the list, it is possible to see at a glance the type of processing to be performed by each component and which element of the processing type is to be processed. In addition, the component part list 3 for each part
In 5, the ratio of the processing time of the element part to the processing man-hour of each part is described, and a component ratio table 30 of the component part by part is created.

Further, a machine type element part list 31 is prepared from the viewpoint of the processing machine. As shown in FIG. 6, these are classified into disk processing, shroud processing, shaft processing, simple groove processing, groove processing with a bag section, and the like as processing parts common to the component parts. It is indicated whether it is processed by such a processing element. For example, disk part processing is outer peripheral straight line processing, simple side processing, side processing with R, bottom processing between disks, etc., shroud processing is flat and shroud processing, side processing, etc. Shaft processing is simple linear processing, concave part processing , End face processing, drilling, journal processing, seal fin processing, etc., simple groove processing for labyrinth groove processing, locking piece groove processing, seal strip groove processing, etc.
Grooving with a bag portion can be divided into side rocking piece grooving, T root groove B64 type groove processing, T root groove RT type groove processing, and the like.

This list of machine-specific element parts is used in two ways. First, when searching for the necessary technical know-how from the work station, simply click on the relevant element part in the list of element parts by machine type displayed on the terminal screen, and the standard work procedure for the element part will be displayed on the screen. The second is to input the ratio of the element part processing improvement effect into the machine type element part list, accumulate the improvement effect for each element part, and improve the part processing improvement effect. And to use it as a master list for calculating the expected machining time. That is, as shown in FIG. 4, a component ratio table 30 for the component parts by component is prepared, and the component part machining improvement effect ratio 33 is input to the machine type element part list 31 to calculate the component parts. Table 3 shows the improvement effect, that is, the man-hour reduction ratio for each component.
When the input is input to 0 and the man-hour reduction ratio is multiplied by the man-hour ratio of the element part in the total man-hours of the part, a reduction rate of the element part of the part with respect to the total man-hour is calculated. If this is accumulated for all element parts of the part,
The man-hour reduction ratio of the part is calculated, and the expected processing man-hour 34 after the improvement can be estimated.

As an example, the case of a low pressure rotor of a steam turbine will be described. The ratio of simple side machining to the total man-hours is 19.3%, and this ratio is calculated from the actual machining results. Assuming that the processing time of the element part can be reduced by 20%, the reduction rate of the simple side processing reduction with respect to the total man-hour is 1%.
9.3% × 0.2 = 3.9%. When the improvement effects of all the element parts improved in this way are input to the component ratio 30 of the element parts by component, a reduction rate with respect to the total man-hours due to the improvement of the element parts is calculated, and the reduction amount is subtracted from the current machining time. By subtracting, the estimated machining time is estimated. If the reduction rate is calculated every time the element part is improved, the transition of the reduction of the man-hour of the part can be grasped in advance.

Analyzing the difference between the actual time input by the operator of the work station from the terminal and the expected time, it is found that the "what machining part (element part)" of "which part" of "which station". Can be easily pursued, and the production engineer can intensively instruct the workers. In this way, the improvement effect can be extended to all tasks, and efficient productivity improvement activities can be performed with the participation of all parties involved.

Next, an improvement method at the work station will be described. After observing work, analyzing work, and examining the optimal setup, the production engineer goes to the work station to perform work observation, and after the work, fills in a work improvement transition table (not shown) for element parts. In the work improvement transition table, the type of the machine to be observed, the target part name, the processing type-element part, the processing shape, the shape of the element part, the strike, the improvement STE
As P, special mention items are provided for introducing new tools and for describing tool trajectories.

[0033] An improvement plan is created, the feasibility, the method of realization, and the like are examined by related parties, and the process is started. The contents that could be improved through actual work are entered in the above-mentioned box, and new work procedures and man-hours are entered in the STEP box. STEP column is the current ST
Starting from EP0, and continuing to STEP1, STEP2,. The improvement effect is improved each time STEP is repeated,
Standard work procedure (not shown) that describes the latest work method at a certain point
Put together. The standard operation manual includes an element part code,
Element part names, machining shapes, machining paths, work contents, tools used, cutting conditions, machining times, and the like are described. In addition, a latest setup procedure (not shown) is created. In the manual, the annotation of the jig to be used is described using the imaging by the digital camera. These work instructions and the like are input to the personal computer 1 'using the scanner 14 and the digital camera 13.

It should be noted that the outsourced maker or tool maker is required to provide the external part of the standard operation manual with the element part code, element part name, machining shape, machining path, work content, tool used, cutting conditions and machining time. Mask the parts that should not be leaked and make them readable. For example, when the password is input to the server with the tool maker's password, the work contents and the processing time in the standard work procedure are encrypted so that they cannot be read out. When input, the in-house processed part is masked with the element part code in the standard work procedure so that only the element part name that matches the corresponding outsourced processor can be read out.

[0035]

As described above, according to the present invention,
The types of processing performed on the component parts are divided into common processing types, and the processing parts are divided into processing elements indicating what kind of processing each processing type is made of, and the component parts are processed by these processing elements. It is regarded as the accumulation of parts, and the standard work procedure, parts setup procedure, and tool table for each element are created and stored in the server.These procedures are updated based on the work improvement result data input to the personal computer by the production engineer. Technology, and workers and production technicians at the manufacturing site can access at any time and quickly access the latest data such as the above procedures, so that efficient production improvement can be achieved with fewer production technicians. The following effects can be obtained.

(1) As a method of improving the productivity in the manufacturing industry, the object of improvement is regarded as "parts", but is grasped by the concept of "element parts" constituting parts.
The object of improvement can be narrowed down to tens of types of element parts, and by concentrating on the improvement of the element parts, the improvement can be reflected on all parts, and a dramatic improvement in productivity due to efficient improvement can be expected. (2) In the case of a steam turbine, for example, in the case of a steam turbine, the technical know-how serving as the basis of machining can be collected in more than 60 element parts, so that the input is easy, and the inquiring side can easily search.

(3) Since the technical information on the element parts is connected to the production technology department and the work station by a network using the information communication technology which has been advanced in recent years, "all workers" can be "anytime" and "anywhere". , "Easily" look at the terminal screen and immediately reflect the new technology in the improvement of parts production. (4) By comparing the actual data from the operator with the expected machining time from the standard work procedure of the element part on a personal computer, it is possible to determine which “part” and “what part” of “what station” is the problem. And can plan improvement strategies. (5) Technical information can be easily understood by an outsourcing maker through an information communication network, and required information that has been collected can be quickly disclosed, thereby contributing to an improvement in productivity at the outsourcing maker. (6) By extending this system to assembling, casting, and testing work other than machining, each work efficiency can be improved.

[Brief description of the drawings]

FIG. 1 is a diagram showing a configuration of a manufacturing system based on an element part analysis method using an information communication network according to the present invention.

FIG. 2 is a diagram showing a configuration of a subcontract maker and a tool maker connected to the configuration of FIG.

FIG. 3 is a diagram showing an outline of a procedure for creating a standard work procedure manual or the like for an element part.

FIG. 4 is a flowchart showing a flow of a standard work procedure creation procedure and an estimated machining time estimation by improving machining of a part.

FIG. 5 is a diagram showing a partial example of a classification of a processing type and a classification of an element part common to constituent parts.

FIG. 6 is a diagram illustrating a classification of a processing part common to constituent parts and a partial example of an element part belonging to each processing part.

FIG. 7 is a diagram showing a conventional productivity improvement activity procedure.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Personal computer 2 Server 3 PHS-LAN connection device 4 PHS exchange 5 PHS antenna 6 LAN 7 Router 8 Portable terminal 9 PHS 10 Machine factory work station 10 'Assembly factory work station 12 Worker 20 Standard work procedure manual 30 Element parts by parts Composition ratio 31 List of component parts by machine type 41 Outsourcing manufacturer 42 Tool manufacturer 51 Production engineer 52 NC programmer

Claims (7)

[Claims] 1. A processing operation of each component part of a product composed of various types of parts is divided into processing elements, and each of the divided processing elements is classified by function and is classified into a processing function common to the component parts. Integrate into component parts, perform work analysis and work improvement for each of the consolidated component parts, accumulate work improvement data for each element part in a server, and transfer the work improvement data accumulated in the server via a communication network. A part manufacturing work improvement system based on an element part analysis method, which is read out by a manufacturing site or a production technology side of a part having a processing element of each corresponding element part and used for improving the operation of each processing element. 2. The work improvement data for each element part is a standard work procedure, a part setup procedure, and a tool table, and these data are input to a server and processed by each corresponding element. A part manufacturing work improvement system based on an element part analysis method, which can be accessed at any time from a terminal provided on a manufacturing site or a production technology side of a part having a component. 3. A manufacturing site or a production technology side of a component having a processing element of each corresponding element portion reads out the data, uses the data for improving the work of each processing element, and returns the used data to the server again. 2. The system according to claim 1, wherein the improved data is stored in the server and used for improving the work of parts manufacturing. 4. The component according to claim 1, wherein an access such as data reading and transmission of improved data by a component manufacturing site or a production technology side is performed by a wireless mobile communication terminal in an Internet mode. Manufacturing work improvement system. 5. The data transmitted from the terminal at the part manufacturing site to the server side includes the processing time of each part, the processing time for each of the divided processing elements, and the type and number of tools. 2. The system according to claim 1, wherein the data stored in the server is updated to the latest data and statistical work time is managed. 6. The processing operation of each component part of a product composed of various types of parts is divided into processing elements, and each of the divided processing elements is classified according to function, and each processing function is shared by the component parts. Integrate into element parts, perform work analysis and work improvement for each of the consolidated element parts, and apply the work improvement data for each element part to an in-house manufacturing site that processes each element part via a communication network. Hierarchy is divided or masked into parts that can be read by the production technology side and parts that can be read by external manufacturers such as outsourcing manufacturers and tool manufacturers, and stored in the server, and used to improve the work of machining elements at each hierarchical part A part manufacturing work improvement system using an element part analysis method characterized by the following. 7. The system according to claim 1, wherein said server is a WWW server and is configured to be readable and writable in a language that can use the Internet.