JP3671709B2 - Production line and production method for body panel parts - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a production line and a production method for a vehicle body panel component, in which the carried vehicle body panel component is pressed by a press die, and spot-welded in a state where the vehicle body panel component after the press working is set in a jig, and then carried outside. About.
[0002]
[Prior art]
Car body panel parts in automobiles, for example, the inner panel and outer panel constituting the trunk lid are bonded and fixed to each other with an adhesive, and the flange bending process (hem processing) is performed on the outer panel peripheral edge. An example of a production line for vehicle body panel parts for spot welding is shown in FIG.
[0003]
The vehicle body panel parts here are assumed to be sequentially conveyed by the conveying conveyor 1 from the left to the right in the figure corresponding to each work process. First, after the operator 3 sets the outer panel 5 on the jig in the setting / sealing step A, the sealing robot 7 performs a sealing operation for applying an adhesive to the peripheral portion of the outer panel 5. In the next mastic process B, an adhesive is applied to the central portion of the outer panel 5 and its periphery by the mastic robot 9. In the subsequent inner panel marriage process C, the operator 3 joins the inner panel 11 to the outer panel 5 to which the adhesive has been applied, and integrates both to form the trunk lid part 13.
[0004]
The integrated trunk lid part 13 is subjected to pre-hem processing, which is a preliminary processing of hem press processing (flange bending processing) on the peripheral edge of the outer panel in the pre-hem process D, and then subjected to hem press processing in the next hem press process E. The The trunk lid part 13 that has been subjected to the hem press process is spot-welded by the welding robot 15 while the hem press process is performed in a state where the trunk lid part 13 is set on a jig in either of the after hem spot welding processes F and G. The trunk lid part 13 for which the spot welding operation has been completed is carried out to the outside by the operator 19 or the unloading robot in the next unloading step H.
[0005]
In the hem press step E, die storages 21 and 23 are respectively installed on the left and right sides of the trunk lid part 13 in the conveying direction. Each of the die storages 21 and 23 has various trunk lid parts 13 corresponding to the vehicle type. The hem dies 25, 27 and 29, 31 for performing hem press processing are accommodated. Each of these hem dies 25, 27, 29, 31 can be moved in the left-right direction in the figure on the die storages 21, 23, and the die storages 21, 23 and hem presses at positions corresponding to the hem press process E. It can move between steps E.
[0006]
Corresponding to the hem dies 25, 27, 29, 31 corresponding to the four vehicle types in the hem press step E, in the after hem spot welding steps F and G, jigs 33, 35 and jig 37 corresponding to the two vehicle types, respectively. 39, jigs corresponding to a total of four vehicle types will be arranged. These jigs 33, 35 and 37, 39 can be moved in the vertical direction in the figure, and any one of the jigs 33, 35, 37, 39 corresponding to the vehicle type to be manufactured is moved onto the conveyor 1. In this state, the trunk lid part 13 is set.
[0007]
[Problems to be solved by the invention]
By the way, in the above-described production line for body panel parts, four types of trunk lid parts 13 can be produced. For example, when a car is remodeled, the hem dies 25, 27, 29 on the die storages 21, 23 are used. , 31, a new hem die is required, and new jigs are also required for the jigs 33, 35, 37, 39 used in the after hem spot welding processes F, G.
[0008]
Among these, the jig exchange in the afterhem spot welding processes F and G is large-scale, such as removing the surrounding welding robot 15 because the die storages 21 and 23 are installed on both sides of the production line. It takes a considerable amount of time to modify the production line, for example, because work is required and jig replacement is extremely difficult.
[0009]
Moreover, in the above-mentioned production line, it corresponds to the production of the trunk lid part 13, but for example, the door is used because the conveyor 1 having a jig dedicated to the part is used for the transportation of the body panel part. There is a problem that so-called mixed-flow production, which makes it possible to manufacture other body panel parts such as hoods and back doors, cannot be performed, and it cannot be applied to low-volume production of various products.
[0010]
SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to make it possible to modify a production line in a short time and to perform mixed flow production that can be applied to different body panel parts.
[0011]
[Means for Solving the Problems]
  In order to achieve the above object, the invention of claim 1 corresponds to various body panel components that are processed in the press working section on one side with respect to the press working section that presses the body panel parts. The vehicle body after providing a press die accommodating portion capable of arranging a plurality of press dies and having a press die exchange function capable of exchanging a press die set in the press working step, and processing in the press working step Spot welding process section that performs spot welding upon receipt of panel partsIs arranged on the same side as the press working step with respect to the press mold housing and adjacent to the press working step, and the spot welding stepofThe press die housing part and the press working process part are not arrangedProvided on the side is a jig accommodating part that can arrange jigs corresponding to the various body panel parts and has a jig exchanging function capable of exchanging the jig set in the spot welding process part,The press mold accommodating portion is disposed only on one side of the jig accommodating portion.As a configuration.
[0012]
  According to the production line for body panel parts having such a configuration, the press mold corresponding to the body panel part to be manufactured is put into the press working process section from the press mold housing section, and this press mold is introduced. Car body panel parts corresponding to the above are carried into the stamping process section and pressed. Next, with the jig corresponding to the above-mentioned body panel part being put into the spot welding process part from the jig housing part, the body panel part is set in the thrown jig.Perform spot welding.
[0013]
According to a second aspect of the present invention, in the configuration of the first aspect of the invention, the press die accommodating portion is configured such that a plurality of press dies are movably arranged along a production line connecting the press working step portion and the spot welding step portion. Yes.
[0014]
According to the above configuration, the plurality of press dies accommodated in the press die accommodating part is selected as necessary by moving along the production line, and the selected press dies are transferred to the press working process part. It is thrown.
[0015]
According to a third aspect of the present invention, in the configuration of the first aspect of the present invention, the jig accommodating portions are arranged so as to be vertically movable so that a plurality of jig storage portions are stacked in the vertical direction.
[0016]
According to the above configuration, a plurality of jigs housed in the jig housing part are selected as necessary by moving in the vertical direction, and the selected jigs are put into the spot welding process part. The
[0017]
According to a fourth aspect of the present invention, in the configuration of the first aspect of the present invention, the body panel component is transported by a transport robot that can be replaced with a robot hand corresponding to the body panel component.
[0018]
According to the above configuration, when the vehicle body panel component is transferred, the robot hand corresponding to the vehicle body panel component is mounted by the transfer robot.
[0019]
  The invention of claim 5 is the configuration of the invention of claim 1,A carry-out conveyor for receiving the vehicle body panel parts after being welded in the spot welding process part and carrying them out is disposed above the press die housing part,The end of the carry-out conveyor on the front side in the carry-out direction with respect to the body panel part is set to the carry-in side of the body panel part to the production line.
[0020]
  According to the above configuration,Located above the press mold housingThe carry-out conveyor carries out the vehicle body panel component for which spot welding has been completed to the carry-in side of the vehicle body panel component in the production line.
[0021]
  The invention of claim 6Claim 5In the configuration of the invention, the carry-out conveyor is constituted by a wide belt conveyor so that various body panel parts can be carried out.
[0022]
According to the said structure, various vehicle body panel components are carried out in the state mounted on the wide belt conveyor.
[0023]
According to a seventh aspect of the present invention, in the configuration of any one of the first to sixth aspects of the invention, the body panel component is a product in which the inner panel and the outer panel are merged, and is carried into the press working section for flange bending. In the spot welding process section, the flange part is spot welded.
[0024]
According to the above configuration, the vehicle body panel component in which the inner panel and the outer panel are merged is subjected to flange bending in the press working step, and then the flange portion is spot welded in the spot welding step.
[0025]
  The invention according to claim 8 is a press mold corresponding to the various body panel parts from a press mold housing part disposed on one side of the press process part with respect to the press process part into which the body panel parts are carried. Is pressed and the body panel parts after the press work are carried in.The press mold housing part is disposed on the same side as the press process part and adjacent to the press process part.For the spot welding process part, this spot welding process partThe press die housing part and the press working process part are not arrangedPlaced on the sideAnd the said press type | mold accommodation part is arrange | positioned only at one side.With the jigs corresponding to the various body panel parts inserted from the jig housing part, the body panel parts are set on the inserted jig and spot welding is performed.Car body panel parts with carry-out conveyorThis is a method for manufacturing a body panel component to be carried outside.
[0026]
  According to the above method for manufacturing a vehicle body panel component, the replacement work of the jig used in the spot welding process section subsequent to the press process section is opened on the opposite side of the press mold housing section with respect to the press process section.Can be done from the site.
[0027]
【The invention's effect】
  According to the invention of claim 1, since the press die accommodating portion for accommodating a plurality of press dies is arranged on one side of the production line, the jig used in the spot welding process portion which is a subsequent process is provided. The work for exchanging the jig housing part with a new one can be performed from the open part on the opposite side to the press mold housing part with respect to the production line, and the work efficiency can be improved. Moreover, since the jig accommodating part which accommodates a some jig is arrange | positioned on the side of the spot welding process part, ie, the outside of a manufacturing line, in exchange of the jig with respect to a jig accommodating part, it is outside a manufacturing line. Since it only needs to be put in the jig housing part, adjustment of the new jig can be done outside the production line,Work efficiency is improved.
[0028]
According to the invention of claim 2, since the press die accommodating part is arranged so that a plurality of press dies can be moved along the production line connecting the press working process part and the spot welding process part. Can be selected by moving along the production line on the press mold accommodating section, and can be put into the press working process section.
[0029]
According to the invention of claim 3, since the jig accommodating portions are arranged so as to be vertically movable so that a plurality of jigs are stacked in the vertical direction, the plurality of jigs are moved in the vertical direction in the jig accommodating portion. By doing so, what is needed can be selected and put into the spot welding process section.
[0030]
According to the invention of claim 4, since the transport of the vehicle body panel parts is performed by the transport robot that can be replaced with a robot hand corresponding to the vehicle body panel parts, different vehicle body panel parts can be obtained by appropriately replacing the robot hands. This makes it possible to handle mixed flow production.
[0031]
  According to the invention of claim 5,Since the carry-out conveyor for carrying out the body panel parts after spot welding to the outside is arranged above the press die housing portion arranged along the production line, the horizontal installation area of the carry-out conveyor can be expanded. It is restrained and the installation space as the whole manufacturing line can be restrained small. Also,The front end of the carry-out conveyor with respect to the body panel parts is set to the carry-in side of the body panel parts in this production line, so only one worker is required to carry in and out the body panel parts. Improved work efficiency is achieved.
[0032]
According to the invention of claim 6, since the carry-out conveyor is constituted by a wide belt conveyor so that various vehicle body panel parts can be carried out, the vehicle body panel parts are placed on the belt conveyor. By transporting, different body panel parts can be transported, making it possible to handle mixed flow production.
[0033]
According to the seventh aspect of the present invention, the body panel component in which the inner panel and the outer panel are merged can be bent in the press working section, and the flange portion can be spot welded in the spot welding process section.
[0034]
  According to the eighth aspect of the present invention, the replacement work of the jig used in the spot welding process section that is a subsequent process of the press working process section is performed on the side opposite to the press die housing section disposed on one side of the press working process section. Because it can be done from open parts, it can be done easily and in a short time, improving work efficiency.Can be planned.
[0035]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
[0036]
FIG. 1 is a plan view showing an overall configuration of a production line for vehicle body panel parts showing an embodiment of the present invention, FIG. 2 is a plan view showing a specific configuration of the production line, and FIG. 3 is a front view thereof. is there. The body panel parts here are intended for, for example, trunk lids, doors, hoods or back doors in automobiles, and each of these body panel parts includes an outer panel and an inner panel. In FIG. 1, the vehicle body panel component is indicated by reference numeral 40, the outer panel is indicated by reference numeral 40a, and the inner panel is indicated by reference numeral 40b.
[0037]
A hem press working section 41 as a press working section for performing a flange bending process on the peripheral edge of the outer panel 40a of the vehicle body panel component 40 is installed at a substantially central portion of the production line. 1 and FIG. 2 on the left side of the hem press working step part 41 are arranged a pre-hem working step part 43 and an adhesive application step parts 45 and 47 for sealing and mastic.
[0038]
In the pre-hem processing step 43, the flange bending processing in the hem press processing step 41 is pre-processed. In the sealing operation of the adhesive application process portions 45 and 47, an adhesive is applied to the peripheral portion of the outer panel 40a, and in the mastic operation, the adhesive is applied to the central portion of the outer panel 40a and the periphery thereof.
[0039]
Between the adhesive application process parts 45 and 47, an adhesive application robot 49 for applying the adhesive in the process parts 45 and 47 is disposed. For the outer panel 40a to which the adhesive is applied, one worker 50 sets the inner panel 40b and couples them together. Although not shown in the adhesive application process parts 45 and 47, there are four jigs that can set different vehicle body panel parts depending on the vehicle type. It can be replaced with other jigs.
[0040]
The outer panel 40a is transported from the prehem processing section 43 to the adhesive application processing sections 45 and 47 by a first handling robot 51 as a transport robot. The first handling robot 51 is movable between the process parts 43, 45, 47 and the hem press working process part 41 along a guide part 53 that extends in the vertical direction in FIGS. is there. Furthermore, robot hands 55, 57, 59, 61 corresponding to various body panel parts of the first handling robot 51 are arranged between the guide portion 53 and the hem press working step portion 41. A cart is used to put the robot hands 55, 57, 59, 61 into the arrangement positions, and an autochanger mechanism is used to replace the robot hands 55, 57, 59, 61.
[0041]
Between the robot hand 59 and the robot hand 61, there is installed a conveyor 63 for sending the vehicle body panel part 40 carried in by the first handling robot 51 onto a hem die 77 as a press die in the hem press working step section 41. Yes. Further, a conveyor for drawing the vehicle body panel component 40 fed from the conveyor 63 onto the hem die 77 is also installed in the hem press working process section 41.
[0042]
A spot welding process section 65 of a subsequent process is provided on the right side of the hem press working process section 41 in FIGS. 1 and 2. The spot welding process part 65 is a process of spot welding the part bent by the hem press working process part 41, and a welding operation can be performed by a welding robot 67 arranged on the upper side in the drawing. A conveyor for feeding the vehicle body panel component 40 to the spot welding process section 65 is installed on the hem press working process section 41.
[0043]
In the spot welding process section 65, a jig 68 for positioning and fixing the vehicle body panel component 40 is set. A jig changer storage 69 as a jig housing part is disposed on the right side of the spot welding process part 65 in FIGS. 1 and 2. The jig changer storage 69 accommodates jigs 68 (68a, 68b, 68c, 68d) corresponding to four types of vehicle body panel parts, and is arranged so as to be stacked vertically as shown in FIG. The front part 71 and the rear part 73 can move in the vertical direction, and the uppermost part and the lowermost part can move between the front part 71 and the rear part 73. Then, the necessary jig 68 is thrown into the spot welding process section 65 from the position of the lowermost step section 71a in the front section 71, and the jig that is no longer needed is pulled up.
[0044]
A hem die changer storage 75 serving as a press die housing portion is installed on the lower side of the hem press working step portion 41 in FIGS. 1 and 2. The hem die changer storage 75 extends in the left-right direction in FIGS. 1 and 2 along the production line from the adhesive application process parts 45 and 47 to the spot welding process part 65, and includes three hem dies 77 (77a, 77b, 77c). Each of these hem dies 77a, 77b, 77c is movable in the direction of arrangement thereof, and the hem die 77 that is required and is no longer required from the position where the hem die 77a is disposed with respect to the hem press working step section 41. 77 is raised.
[0045]
A hem die changer 79 in which one hem die 77 (77d) is arranged is provided on the side opposite to the hem die changer storage 75 (upward in FIGS. 1 and 2) of the hem press working step 41. ing. The hem die changer 79 to the hem die 77d is thrown into or raised from the hem press working step section 41 when necessary.
[0046]
Between the spot welding process unit 65 and the hem die changer storage 75, a second handling robot 81 is installed as a transfer robot for carrying out the vehicle body panel part 40 for which the spot welding operation has been completed. In the vicinity of the second handling robot 81, robot hands 83, 85,... Corresponding to various body panel parts of the second handling robot 81 are arranged. A cart is used to insert the robot hands 83, 85,... At this arrangement position, and an autochanger mechanism is used to replace the robot hands 83, 85,.
[0047]
The vehicle body panel part 40 gripped by the second handling robot 81 is carried out to the outside by the carry-out conveyor 87. The carry-out conveyor 87 is composed of a single wide belt conveyor so that various body panel components can be conveyed, and is arranged above the hem die changer storage 75 as shown in FIG. One end is in the vicinity of the second handling robot 81, and the other end on the carry-out side is positioned in the vicinity of one end of the hem changer storage 75. In front of the other end of the carry-out conveyor 87, a cradle 89 for receiving the vehicle body panel component 40 carried out from the carry-out conveyor 87 is installed.
[0048]
The position of the end portion on the carry-out side of the carry-out conveyor 87 corresponds to the carry-in portion side of the vehicle body panel part 40 in the production line where the adhesive application process portions 45 and 47 are disposed. For this reason, the carrying-in part and carrying-out part of the vehicle body panel part 40 in this production line will be gathered by one end part of the production line, and the above-mentioned one worker 50 is carried in at the time of carrying in and carrying out the vehicle body panel part 40. One person is arranged.
[0049]
Next, the manufacturing process of the vehicle body panel component 40 in the above-described production line for vehicle body panel components will be described. First, the peripheral portion of the outer panel 40a in the vehicle body panel component 40 is pre-hem processed in the pre-hem process unit 43. The pre-hem-processed outer panel 40a is transported to one of the adhesive application process parts 45 or 47 by the first handling robot 51 moving on the guide part 53 and positioned on the jig, where it is used for adhesive application. The robot 49 performs sealing and mastic work. At this time, the first handling robot 51 is equipped with one of the robot hands 55, 57, 59, 61 corresponding to the type of the body panel part.
[0050]
The worker 50 sets the inner panel 40b to the outer panel 40a to which the adhesive is applied, and integrates both the panels 40a and 40b. The integrated vehicle body panel component 40 is conveyed by the first handling robot 51 to the conveyor. Transport to 63. By driving the conveyor 63, the vehicle body panel part 40 is conveyed to the hem press working step 41, and on the hem die 77 put in the hem press working step 41 by the operation of the conveyor provided on the hem press working step 41. Set. The hem die 77 corresponds to one of the hem dies 77a, 77b, 77c, and 77d in the hem die changer storage 75 or the hem die changer 79.
[0051]
In the hem press working process section 41, the pre-hem processed part is hemmed to bend the flange, and the processed vehicle body panel part 40 is conveyed to the spot welding process section 65 by the conveyor on the hem press working process section 41. Is done.
[0052]
In the spot welding process unit 65, the body panel part 40 is spot-welded by the welding robot 67 at a portion where the flange is bent while being set on the jig 68. The jig 68 corresponds to one of the four jigs 68a, 68b, 68c, and 68d in the jig changer storage 69.
[0053]
The vehicle body panel component 40 for which spot welding has been completed is carried out onto the carry-out conveyor 87 by the second handling robot 81. At this time, the second handling robot 81 includes one of the robot hands 83, 85,... Corresponding to the type of the vehicle body panel part 40. The carry-out conveyor 87 carries the vehicle body panel component 40 and conveys it in the direction indicated by the arrow P in FIG. 2, and is carried out by an operator 50 or an unloading robot (not shown) at the front end in the conveyance direction. The production of the vehicle body panel component 40 in this production line is completed.
[0054]
In the above-described production line for vehicle body panel parts, a jig used in the adhesive application process parts 45 and 47, a hem die 77 used in the hem press working process part 41, or a spot welding process part when changing the model of an automobile. It is necessary to replace the jig 68 used in 65 with a new one.
[0055]
In this replacement work, in the conventional apparatus shown in FIG. 4, since the die storages 21 and 23 are installed on both sides of the production line, it is difficult to replace the jig 68 used in the spot welding process section 65. It was.
[0056]
However, in the above-described embodiment, the hem die changer storage 75 extended along the production line is arranged on one side of the production line, and the hem die accommodating one hem die 77d on the other side. Since only the changer 79 is disposed, the other side is opened, and the replacement work of the jig 68 with respect to the jig changer storage 69 can be performed easily and in a short time, thereby improving the work efficiency.
[0057]
In the replacement work of the jig 68, a new jig may be put into the jig changer storage 69 installed outside the production line, so that the jig 68 can be adjusted outside the production line. Efficiency is improved.
[0058]
Further, the transportation of the vehicle body panel parts from the pre-hem process section 43 to the adhesive application process sections 45 and 47 and the conveyor 63 and the transportation of the vehicle body panel parts from the spot welding process section 65 to the carry-out conveyor 87 are respectively first. The handling robot 51 and the second handling robot 81 are used. For this reason, by appropriately replacing the robot hands of the handling robots 51 and 81, it is possible to deal with various types of body panel parts such as doors, hoods and back doors in addition to trunk lids. Mixed flow production that is optimal for small-volume production is possible.
[0059]
Since the end of the carry-out conveyor 87 on the carry-out side is set in the vicinity of the carry-in side of the body panel part of the production line, that is, on the adhesive application process part 45, 47 side, the worker who is involved in carrying in and carrying out the body panel part This means that only one worker 50 is required, and work efficiency is improved. Further, since the carry-out conveyor 87 is installed above the hem die changer storage 75, expansion of the horizontal installation area by providing the carry-out conveyor 87 is suppressed, and the installation space of the entire production line is reduced. It can be kept small.
[Brief description of the drawings]
FIG. 1 is a plan view showing an overall configuration of a production line for vehicle body panel parts showing an embodiment of the present invention.
FIG. 2 is a plan view showing a specific configuration of the production line of FIG.
3 is a front view of the production line of FIG. 2. FIG.
FIG. 4 is a plan view showing an entire configuration of a production line for vehicle body panel parts showing a conventional example.
[Explanation of symbols]
40 body panel parts
40a Inner panel
40b Outer panel
41 Hem press processing section
51 First handling robot (conveying robot)
55, 57, 59, 61, 83, 85 Robot hand
65 Spot Welding Process Department
69 Jig Changer Storage (Jig Housing)
75 Hemdai Changer Storage (Press Die Housing)
77a, 77b, 77c, 77d Hem die (press mold)
81 Second handling robot (conveying robot)
87 Unloading conveyor

Claims (8)

A plurality of press molds corresponding to various vehicle body panel parts to be processed in the press working process part can be arranged on one side with respect to the press working process part for pressing the car body panel parts, and the press working process part A spot welding process unit is provided with a press mold accommodating part having a press mold exchanging function capable of exchanging a press mold set in a spot, and performs spot welding by receiving a body panel part after being processed in the press processing process part. Is disposed on the same side of the press mold process section as the press process section and adjacent to the press process section , and the press mold store section and the press process section of the spot welding process section are disposed. to have not laterally, the various body panels components can be placed a jig corresponding, and the spot welding step exchangeable jig exchange function of a jig that is set in section A jig receiving portion having provided, body panel parts of the production line, characterized in that a said press die housing part only on one side of the jig housing portion. 2. The production of a vehicle body panel component according to claim 1, wherein the press die accommodating portion is arranged such that a plurality of press dies are movable along a production line connecting the press working step portion and the spot welding step portion. line. 2. The production line for vehicle body panel parts according to claim 1, wherein the jig housing portions are arranged so as to be vertically movable so that a plurality of jig housing portions are stacked in the vertical direction. 2. The production line for a vehicle body panel part according to claim 1, wherein the transportation of the vehicle body panel part is performed by a transportation robot that can be exchanged with a robot hand corresponding to the vehicle body panel part. A carry-out conveyor that receives the car body panel parts after being welded in the spot welding process part and carries them out to the outside is disposed above the press die housing part, and the front side of the carry-out conveyor with respect to the car body panel parts in the carry-out direction. 2. The production line for vehicle body panel components according to claim 1, wherein the end portion is set on the carry-in side of the vehicle body panel components to the production line. 6. The production line for vehicle body panel parts according to claim 5 , wherein the carry-out conveyor is constituted by a wide belt conveyor so that various vehicle body panel parts can be conveyed. The body panel component is a combination of an inner panel and an outer panel, which is carried into a press working section and subjected to flange bending, and the spot welding process section spot welds the flange portion. Item 7. A production line for vehicle body panel parts according to any one of Items 1 to 6. Press processing with a press mold corresponding to each of the various body panel parts from the press mold housing section disposed on one side of the press processing section for the press processing section into which the body panel parts are carried. For the spot welding process part arranged on the same side as the press work process part and adjacent to the press process part with respect to the press mold housing part after the press panel body parts are carried in, the various from the press mold accommodating section and the stamping unit disposed on the side that is not arranged and the jig housing part which is arranged the press mold accommodating part only on one side of the spot welding process unit while introducing jig corresponding to the vehicle body panel parts, perform spot welding sets the vehicle body panel parts to a jig that is in this charged body after the spot welding Body panel parts manufacturing method characterized by carrying out the channel parts to the outside discharge conveyor.

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