JP6966732B1 - Welding equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make an operation for selecting an appropriate element of a welding apparatus easy to understand. When a basic element including a combination of materials to be welded and a type 42 of an electrode is selected by a condition setting screen 14, a matching combination is selected from a combination element list 33 stored in a storage device 20. Example 34 is selected. The parameter extraction unit 16 automatically extracts the parameters necessary for the calculation of the welding condition 32 from the selected combination example 34. The arithmetic processing unit 18 calculates and processes specific welding conditions 32 using the extracted parameters, and sets the conditions in the welding unit 22. [Selection diagram] Fig. 1

Description

The present invention relates to a welding apparatus having improved element input operability for setting welding conditions.

In order to perform high quality welding, it is necessary to input various factors for determining welding conditions. This element includes, for example, the material and thickness of the plate or part to be welded, the type of electrode used for welding, and the like. After accurately inputting these elements to obtain the welding conditions, it is necessary to make a prototype, readjust from the finished product, and optimize the welding conditions. The present inventors have previously developed a technique for optimizing this welding condition (Patent Document 1).

Patent No. 6810820

The elements necessary for setting such welding conditions can be specified relatively easily by an engineer who is familiar with welding technology, but it is not easy for an operator who is unfamiliar with welding technology. Sometimes you don't know what affects the weld quality and what factors to specify. Sometimes you don't know what to look for in the material you want to weld and what element to enter. When the welding conditions are roughly obtained, it takes a long time to optimize the welding conditions, and the optimum value may not be reached. In order to solve these problems, it is an object of the present invention to provide a welding device in which the operation for selecting an appropriate element of the welding device is made easier to understand.

The following configurations are means for solving the above-mentioned problems, respectively.

When the type of material to be welded, the combination of material thickness, and the basic elements including the type of electrode are selected by the condition setting screen, the matching combination from the combination element list stored in the storage device is selected. An element selection that works to select an example,
A parameter extractor that automatically extracts the parameters necessary for calculating welding conditions from the selected combination example and the additional elements including strength and aesthetics when they are input together.
It is equipped with an arithmetic processing unit that calculates and sets specific welding conditions in the welding unit using the extracted parameters.
All or part of the combination examples included in the above combination element list are created according to predetermined rules.
In the above combination element list,
The combination example that the user actually selected in the past is included, and the parameter list including the extracted parameters and / or the welding conditions obtained by using these parameters are used as the attribute data of the combination example.
The parameters derived in reverse from the welding conditions optimized in the past are used as the attribute data of the combination example.
Welding equipment-specific elements and parameters used for corrections to optimize welding conditions have also been added.
The above parameter extraction unit determines whether or not parameters can be extracted from the selected combination example or attribute data according to the above rules.
The above arithmetic processing unit uses the parameters extracted from the combination example created according to the above rule, or uses the parameters read from the attribute data of the combination example that does not follow the above rule, and welds the welding conditions. Welding equipment characterized by performing the calculation of.

<Structure 2>
All or part of the combination examples included in the above combination element list are created according to a predetermined rule, and the parameter extraction unit is characterized by extracting the above parameters from the combination examples according to this rule. The welding apparatus according to the configuration 1.

<Structure 3>
For some combination examples that are included in the combination element list and do not follow the above rules, attribute data including necessary parameters created according to predetermined rules is stored in association with this combination example. The welding apparatus according to the configuration 2, wherein the welding apparatus is made.

<Structure 4>
The above parameter extraction unit determines whether or not the newly created combination example is created according to the above rule, and also determines whether or not the newly created combination example is created according to the above rule.
The welding apparatus according to the configuration 3, wherein the above parameters are extracted from the combination example created according to the above rules or the above attribute data.

<Structure 5>
The welding apparatus according to any one of configurations 1 to 4, wherein the combination example is expressed in a descriptive sentence format including necessary elements.

<Structure 6>
The condition setting screen displays an index list in which combination examples can be selected, and when a keyword in the idex list is selected, the display space of the element is temporarily expanded so that the entire corresponding element can be read. The welding apparatus according to any one of configurations 1 to 5.

<Structure 7>
The element selection section accepts additional elements, including strength and aesthetics,
The welding apparatus according to any one of configurations 1 to 6, wherein the parameter extraction unit adds the parameters extracted from the additional elements to the parameters necessary for calculating the welding conditions.

<Structure 8>
Configurations 1 to 7 are characterized in that a combination example actually selected by the user in the past or a parameter list derived from welding conditions optimized in the past is added as attribute data to the combination element list. The welding apparatus according to any one of.

<Structure 9>
One of the configurations 1 to 8 characterized in that when any element is selected on the condition setting screen, a sentence format combination example including the corresponding element is generated and displayed on the condition setting screen. Welding equipment described in.
<Structure 10>
A computer program that causes a computer to function as a condition setting screen, an element selection unit, a parameter extraction unit, and an arithmetic processing unit described in Configuration 1.

<Structure 11>
A computer-readable recording medium on which the computer program according to configuration 10 is recorded.

Even users who are unfamiliar with the work of setting and optimizing the welding conditions of the welding equipment can easily select and input the necessary and sufficient elements for welding, and the welding conditions can be set automatically. If the necessary elements are included in each combination example for element selection without omission, it is easy to optimize the welding conditions simply by selecting them. Since the parameters are extracted from the combination example and the welding conditions are calculated, a large-sized database becomes unnecessary as compared with the case where a database corresponding to the welding conditions directly corresponds to the combination example.

It is a block diagram which shows an example of the welding apparatus of this invention. It is explanatory drawing of the operation screen of Example 2. It is explanatory drawing of the next operation screen of Embodiment 2. It is an operation explanatory diagram of an index. It is explanatory drawing of the next operation screen of Embodiment 2. It is explanatory drawing of the combination element list and the combination example. It is explanatory drawing of the parameter list of Example 3. FIG. It is explanatory drawing of the parameter extraction rule. It is explanatory drawing of the welding condition. It is explanatory drawing of the combination example of Example 4. FIG. It is explanatory drawing of the operation screen of Example 5. It is an embodiment flowchart of the computer program which executes the said process.

Hereinafter, embodiments of the present invention will be described in detail for each example.

(Condition setting screen)
FIG. 1 shows the configuration of a basic embodiment of the welding apparatus of the present invention. This device includes a condition setting screen 14, an element selection unit 15, a parameter extraction unit 16, an arithmetic processing unit 18, a storage device 20, and a welding unit 22. Using the condition setting screen 14, the user selects what kind of material is to be combined and how to be welded. When the material type 38 of the material, the plate thickness association 39, and the electrode type 42 are selected on the condition setting screen 14 in the figure, the element selection unit 15 selects the combination example 34 and passes it to the parameter extraction unit 16. The arithmetic processing unit 18 executes the arithmetic processing of the welding condition 32.

In the welded portion 22 of FIG. 1, for example, a work in which the upper work 24 and the lower work 26 are overlapped is placed on the lower electrode 28 of the table type, and the upper electrode 30 of the gun type is pressed against the electrode. Welding current is passed between them.

The storage device 20 stores the combination element list 33 and other data for the arithmetic processing of the welding condition 32 for controlling the welding portion 22. The combination element list 33 is a database in which various combination examples 34 selected on the condition setting screen 14 are collected.

(Example of combination of elements)
Example 34 of the combination of elements specifically shows, for example, the material type 38 of the material to be welded, the plate thickness association 39, and the type 42 of the upper and lower electrodes. In the combination example 34 selected on the condition setting screen 14 shown in FIG. 1, two plates of SPCC (Steel Plate Cold Commercial) (cold rolled steel plates) having a thickness of 1.0 mm are placed on a table electrode. , The content is to weld using an electrode with a diameter of 16 mm.

The combination element list 33 includes a large number of various combination examples 34 in advance so that a combination example 34 having contents matching the actual combination can be automatically selected on the condition setting screen 14. Specific examples of the combination element list 33 and the combination example 34 will be described later with reference to FIG.

Next, an example of an operation for selecting a combination example 34 will be described with reference to a more specific example of the condition setting screen 14. Since there are many combination examples 34, for example, as shown in FIGS. 2 to 4, it is preferable to provide an index using a known search function so that the corresponding one can be easily found and selected. On the condition setting screen 14, the material type 38 and the plate thickness association 39 can be searched by using the index list 44 and the index list 45, respectively.

First, on the condition setting screen 14 of FIG. 2, the keyword "SPCC" is selected from the index list 44. As a result, the material type 38 including this keyword is selected and displayed. The state is shown in FIG. FIG. 4 shows an overall view of the index list 44 and the list of material types 38. The condition setting screen 14 of FIG. 3 temporarily enlarges the display space of the material type 38 shown in FIG. 4 so that the entire display space can be read. Now you can choose "SPCC x SPCC".

Next, as shown in FIG. 5, the keyword “1.0” for selecting the plate thickness association 39 is selected from the index list 45. As a result, the plate thickness association 39 including this keyword is selected and displayed. At this time, the condition setting screen 14 temporarily expands the display space of the plate thickness association 39 so that the entire display space can be read. Now you can choose "1.0 x 1.2 standard". Since there are few types of electrodes 42, "φ16R8 × Table" can be directly selected without using an index.

The element addition button 46 shown in FIG. 5 is prepared so that the user may select from the additional elements 56 as needed. For example, if there is a requirement for the degree of aesthetics and the degree of strength of the welded portion, it may be included in the parameters of the welding conditions in advance. Normally, if you request input up to this element, it will be difficult to understand, so it is better to use it according to the skill level of the user. Additional elements may also be selectable, for example, by exemplifying the degree of aesthetics such as upper, middle, and lower. When all the elements have been selected, the completion button 52 is operated. To redo the selection, operate the cancel button 50.

FIG. 6 shows a specific example of the combination element list 33. The combination element list 33 includes a combination element list 33 that specifically lists all aspects of the user using the welding machine. As will be described later, in this combination element list 33, the attribute data 54 includes a combination example 34 actually selected by the user in the past and a parameter list conversely derived from the welding conditions 32 optimized in the past. Can be added as. That is, it is configured so that it can be customized according to the usage history of the user.

The welding conditions of the welding machine are the welding current, the pressure of the electrodes applied to the material, and the energization time. In general, trial production and adjustment are repeated to find the optimum conditions. Therefore, the initial value of the welding condition is selected from the factors such as the type and thickness of the material to be welded, and the condition is optimized starting from there. However, the closer this initial value is to the optimum value, the finer the adjustment can be made, so that the work time can be saved.

To do this, it is important to know which element to enter first. It is relatively easy for an expert to select this element, but it is not easy for an inexperienced user. If the combination example 34 is listed as described above, it becomes possible to naturally input the type and thickness of the material and the combination of the electrodes as elements. If the selection of the appropriate element is successful, the welding conditions using the optimum parameters can be derived as follows.

(Parameter extraction)
When any combination example 34 is selected by the above user's operation, the parameter extraction unit 16 automatically extracts the parameters necessary for calculating the welding conditions. In order to automatically extract parameters from all the combination examples 34, a certain rule is provided in the expression method of the combination example 34. If a certain rule is followed, the combination example 34 can be freely added.

FIG. 7A is an example of the combination example 34, and FIG. 7B is an example of the parameter list 58. When the material type 38, the plate thickness combination 39, and the electrode type 42 are selected and the parameter extraction unit 16 operates, all the parameters expressed in this combination example 34 are extracted. In the example of (b) in the figure, the extracted parameters are listed for each of the three types of combination examples 34. In this example, the parameter list 58 is generated by assigning a number to the extracted parameter for each combination example 34.

Since the parameter list 58 generated in this way is often reused by the same user thereafter, it is stored as it is as the attribute data of each combination example 34. Furthermore, if the welding conditions obtained using this parameter are also saved as this attribute data, the time required for arithmetic processing can be shortened.

Each of the welding devices owned by the user has unique elements and parameters used for correction for condition optimization. This may be stored separately in the storage device 20 as an additional element 56 in advance. In addition, it is advisable to prepare parameters that can be automatically set as the parameter list 58. The arithmetic processing unit 18 performs arithmetic processing using these parameters to obtain welding conditions.

FIG. 8A shows a combination example 34 just selected on the condition setting screen 14. FIG. 8B is a rule for describing the combination example 34. The parameter extraction unit 16 detects, for example, the character (column) “x” from the first delimited character string “SPCC × SUS” of the combination example 34 on the first line, and the parameters “SPCC” and “×” before and after the character (column) “x”. Extract "SUS". Further, the next delimited character string "1.0 mm × 1.0 mm_control box" is detected, and the parameter "1.0 mm" and the like are extracted. All parameters are extracted by this procedure.

FIG. 9 shows the welding conditions obtained as a result of the calculation using this parameter. In this procedure, the parameter extraction unit 16 extracts all the parameters included in the combination example 34 and passes them to the arithmetic processing unit 18. The arithmetic processing unit 18 obtains welding conditions by using, for example, an arithmetic expression 62 as shown in Patent Document 9. Since this is set in the welded portion 22, after that, welding is actually attempted, the result is evaluated, and the welding condition 32 is repeatedly updated while making fine adjustments to obtain the optimum value.

Here, if a combination example 34 including a parameter that can directly derive the welding condition 32 obtained in this way is newly generated and included in the existing combination element list 33, it will be the shortest from the next time. Welding conditions for optimization can be obtained in time.

The condition setting screen 14 may be provided with an interface for accepting additional elements such as emphasizing aesthetics or emphasizing strength.

FIG. 10A shows a combination example 34 selected on the condition setting screen 14 of the fourth embodiment. In this embodiment, the combination example 34 is displayed on the condition setting screen 14 in a descriptive sentence format. This is the most easy-to-understand selection screen for inexperienced users. If the combination example 34 displayed in the sentence format follows a certain rule, it can be described in a free format. FIG. 10B shows the contents of the parameter extraction rule 60. Words such as "upper electrode" and "lower electrode" included in the sentence format combination example 34 may be detected, and the parameters before and after the word may be cut out. As a result, the parameter 66 can be extracted as shown in FIG. 10 (c).

On the condition setting screen 14 of FIG. 11, when the user selects the material type 38, the plate thickness association 39, and the electrode type 42, the combination example 34 is automatically generated and displayed on the condition setting screen 14. In this combination example 34, a sentence format expression that is as easy to understand as possible is adopted. Generate a statement that contains all the necessary elements. As a result, even an inexperienced user can easily check the result of the setting. If there is an error in the element selection, the combination example 34 can be confirmed and resolved. For example, when a necessary element is missing or an erroneous element is selected, the corresponding portion in the combination example 34 may be colored or a warning message may be output.

The flowchart of FIG. 12 shows an operation example of the welding apparatus. In FIG. 12, in step S11, the element is selected on the condition setting screen 14. In step S12, the combination example 34 is selected as described above. In step S13, the parameter extraction unit 16 extracts the parameters. In step S14, it is determined whether or not extraction is possible. If the combination example 34 according to the rule is selected, the process proceeds to step S17.

If a combination example 34 that does not follow the rules is selected, an error is displayed. This prompts the addition of the combination example 34 according to the rules. However, since there are cases where the attribute data is prepared, it is determined in step S15 whether or not the attribute data can be read. If the result of this judgment is yes, the process proceeds to step S18. If no, an error is displayed in step S16 and the process ends.

In step S17, it is determined whether or not there is an additional element such as aesthetics. If the result of this judgment is yes, the process proceeds to step S18. If no, the process proceeds to step S19. In step S18, parameters are extracted from the additional elements. In step S19, the parameter is sent to the arithmetic processing unit 18. In step S20, the welding conditions are calculated. In step S21, the welding conditions are output.

The welding machine specifications described in the above embodiment may include parameters of the welding device in addition to the combination of electrodes. Parameters include, for example, "stationary type", "arm length, height, pocket size", "welding transformer turns ratio", and "cable attached (not attached) underneath".

14 Condition setting screen 15 Element selection unit 16 Parameter extraction unit 18 Arithmetic processing unit 20 Storage device 22 Welding unit 24 Upper work 26 Lower work 28 Lower electrode 30 Upper electrode 32 Welding condition 33 Combination element list 34 Combination example 38 Material type 39 Plate thickness association 42 Electrode type 44 Index list 45 Index list 46 Element addition button 50 Cancel button 52 Finish button 54 Attribute data 56 Additional elements 58 Parameter list 60 Extraction rule 62 Welding condition calculation formula 66 Extraction parameter

Claims (4)

When the type of material to be welded, the combination of material thickness, and the basic elements including the type of electrode are selected by the condition setting screen, the matching combination from the combination element list stored in the storage device is selected. An element selection that works to select an example,
A parameter extractor that automatically extracts the parameters necessary for calculating welding conditions from the selected combination example and the additional elements including strength and aesthetics when they are input together.
It is equipped with an arithmetic processing unit that calculates and sets specific welding conditions in the welding unit using the extracted parameters.
All or part of the combination examples included in the above combination element list are created according to predetermined rules.
In the above combination element list,
The combination example that the user actually selected in the past is included, and the parameter list including the extracted parameters and / or the welding conditions obtained by using these parameters are used as the attribute data of the combination example.
The parameters derived in reverse from the welding conditions optimized in the past are used as the attribute data of the combination example.
Welding equipment-specific elements and parameters used for corrections to optimize welding conditions have also been added.
The above parameter extraction unit determines whether or not parameters can be extracted from the selected combination example or attribute data according to the above rules.
The above arithmetic processing unit uses the parameters extracted from the combination example created according to the above rule, or uses the parameters read from the attribute data of the combination example that does not follow the above rule, and welds the welding conditions. Welding equipment characterized by performing the calculation of. The welding apparatus according to claim 1, wherein the combination example includes one expressed in a sentence format. A computer program that causes a computer to function as a condition setting screen, an element selection unit, a parameter extraction unit, and an arithmetic processing unit according to claim 1. A computer-readable recording medium on which the computer program according to claim 3 is recorded.

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