JPH0444308Y2 - - Google Patents

Description

[Detailed explanation of the invention] [Industrial application field] This invention is suitable for welding without tack of hull longitudinal aggregates, steel frames, etc.
The present invention relates to a hull vertical bone welding device that is applied to welding welding type strips having T-shaped or L-shaped cross sections such as steel bridges.

[Conventional technology]

Figures 11 to 13 show common conventional construction methods.
As shown in the figure. In this construction method, after assembly, the pieces are tacked together to maintain their shape, then lined up on a dirt floor and processed using so-called gravity welding. FIG. 11 is a plan view of the main welding device, and FIG. 12 is a front view of FIG. 11, showing an example in which a strain correction mechanism is provided in the device to perform main welding.

The face material 1 and the bottom material 2, which have been made into one body with their shape maintained by tack welding 10, are pressed by the push-up cylinder 7 while being guided by the guide rollers 3 and 3' by operating the feed handle 5, and at the same time are pressed by the straightening roller 6. Welding torches 8 are added to both sides of the material 2, which is used to correct distortion together with the receiving roller 4, and the welding torch is finely adjusted by hand to perform the actual welding 1.
1.

Moreover, FIG. 13 is an explanatory view of the main welding state taken along the arrow A-A in FIG. 12, and the arrangement is as described above.

[Problem that the invention attempts to solve]

As mentioned above, most conventional construction methods involve manual work, which requires a large amount of man-hours. Also,
Even in the most advanced products, as shown in the example, only the main welding is done and the temporary attachment is done separately.

When welding two long strips together, if we try to directly weld them without tack welding, the expansion and contraction of the two strips will be different, and the other end will wrinkle, causing discrepancies and poor dimensional accuracy. Furthermore, the welding distortion increases, and when crimping the face material and the shell material, the method of pressing the material from the top or receiving a reaction force at the top of the material, especially in ships, requires the depth and width of the material. If there is such a problem, the mechanism becomes large and complicated, and it is also difficult to process the upper notch.

[Means for solving problems]

In order to solve the above-mentioned problems, the object of the present invention is to combine two long strip plates, a face plate and a bottom plate, and integrate them by welding into a T-shaped or L-shaped cross section. That is, in a vertical bone welding device that forms a T-shaped or L-shaped member by vertically disposing a belly member made of a long strip plate on the upper surface of a face plate made of a long strip plate installed horizontally, the face plate A preliminary temporary welding system consisting of a member positioning mechanism that tack-welds only the tip of the base material to form a regular shape, a crimping mechanism for the member, a mechanism for copying the weld line of the member, and a tack-welding mechanism for tack-welding the member. A welding device, a holding roller portion of the member tack-welded and transported by the preceding tack-welding device, a push-up roller portion, a welding line copying mechanism of the member, and a main welding device for main-welding the member. The present invention provides a hull vertical bone welding device characterized by comprising the present welding device consisting of a mechanism.

[Effect]

Since the hull vertical bone welding device of the present invention has the above-mentioned configuration, when the parts whose front ends of the face material and the belly material have been tack welded into the regular shape are carried into the advance tack welding device, the left and right, top and bottom parts of the parts are The material is then gripped and transferred by rolls, and crimped using a tack welding torch with a copying mechanism facing a mechanism that slightly warps upward, and tack welded in a staggered manner while keeping the warp. Then, when the staggered tacked parts are continuously carried into the main welding equipment, the left and right welding parts are
A welding torch with a mechanism that grips and transfers it with rolls from above and below and traces the weld line on both sides can carry out the actual welding. At this time, the main welding device is provided with an encoder so as to be able to control the speed of the preceding tack welding device.

〔Example〕

Hereinafter, the present invention will be specifically described based on embodiments shown in the drawings. Fig. 1 is an explanatory diagram showing the state of tack welding and main welding of members according to an embodiment of the present invention;
Figure b is an explanatory diagram of the staggered temporary welding and final welding as it is transported. FIG. 2 is a front view showing the configuration of the hull longitudinal bone welding device according to this embodiment. FIG. 3 is a plan view of FIG. 2 according to this embodiment. FIG. 4 is a plan view showing the configuration of the advance tack welding device according to this embodiment. FIG. 5 is a front view of FIG. 4 according to this embodiment. FIG. 6 is a side view of FIG. 4 according to this embodiment. FIG. 7 is an explanatory diagram showing the tack welding procedure according to this embodiment. FIG. 8 is a plan view showing the configuration of the present welding apparatus according to this embodiment. FIG. 9 is a front view of FIG. 8 according to this embodiment. FIG. 10 is a side view of FIG. 8 according to this embodiment. The explanation will be given below. In Figures 1 to 3, 1 is a face material, 2 is a bottom material, 3, 3' are hydraulic cylinders, 4,
4' is a positioning roller, 5 and 5' are hydraulic cylinders,
6, 6' are positioning rollers, 7 is a support roller, 8
is the push-up cylinder, 9 is the base, 10 is the guide,
11 is a drive roller, 12 is a pressure cylinder, 13 is a pressure roller, 14 is a press roller, 15 is a hydraulic cylinder, 16 is a drive motor, 20 is a copying device, 21
22 is a tack welding torch, 22 is a copy terminal, 23 is a wire feeding device, 30 is a carry-in conveyor, 31 is a discharge conveyor, 50, 50' are hydraulic cylinders, 51, 5
1' is a holding roller, 52 is a ground roller, 60 is a support roller, 61 is a hydraulic cylinder, 65 is a push-up cylinder, 66 is a base, 67 is a guide, 68 is a drive motor, 69 is a drive roller, 70 is a copying device, 71 is a welding torch, 72 is a copy terminal, 73 is a wire feeding device, 80 is a tack welding for shape retention, 8
1 is staggered welding, 82 is regular welding, 90 is gear, 91
1 is an encoder, 101 and 102 are leading edge detection photoelectric switches, and 103 and 104 are trailing edge detection photoelectric switches. The target member in FIG. 1 is a combination of two long strip plates, a face plate 1 and a bottom plate 2, which are welded together into a T-shaped or L-shaped cross section. Only the tips of the face material 1 and the bottom material 2 have a regular shape, and are tack welded 80 for holding them. The member in this state is carried into the advance tack welding apparatus B by the carrying conveyor 30 shown in FIGS. 2 and 3. The carried member is shaped into a regular shape by a group of rollers positioned by hydraulic cylinders 3, 3', 5, and 5' whose strokes are automatically set according to data.
The positioning roller is in charge of positioning the face material 1 using the positioning roller 4, the positioning roller 4, the positioning roller 4, the exit surface material 1 of the cylinder 3, and the positioning roller 4'.
5 cylinder entry side belly material 2 positioning roller 6,
The position of the belly material 2 is determined by a roller 6' for positioning the belly material 2 on the exit side of the cylinder 5'. The pattern is as follows: First, when the tip of the member shown in FIG. stops. Next, the positioning rollers 4, 4', 6, 6' are 3, 3', 5,
Each cylinder of 5' is also pushed out to fix the member in the correct position. At the same time, support rollers 7 are pushed out using 15 hydraulic cylinders to sandwich the belly material 2 according to the thickness of the material 2, and a push-up cylinder 8 is used at the bottom.
pushes base 9 up. The base 9 has a guide 10 to prevent lateral movement and to smoothly move up and down.
This enlarged detail is shown in FIGS. 4 to 6. A drive motor 16 and a drive roller 11 connected to the motor through a gear are mounted on the upper part of the base 9, and the face material 1 is placed between it and the support roller 7. Sandwich. On the other hand, base 9
There are a pressure cylinder 12 and a pressure roller 13 on the exit side of the drive roller 11, which push the face material 1 up one step higher than the height of the drive roller 11. In addition, surface material 1
There is a presser roller 14 whose position is fixed on the upper surface. The positional relationship of these rollers is as shown in FIG. 7, where the pressure roller 13 warps the face material 1 and forms a peak, at which pressure bonding between the belly material 1 and the membrane material 2 is performed (welding point). In this state, the drive motor 16 shown in the previous figure
When rotates, the member is sent in the direction of the arrow, the copying terminal 22 copies the corners of the face material 1 and the bottom material 2 that will become the welding line, the copying device 20 operates accordingly, and the tack welding torch 21 is moved to the required position. Follow it to the location. The tack welding torches 21 are located at the above-mentioned welding points and are arranged on both sides of the bottom material 2, and the welding wire is fed by a wire feeding device 23, and the arc is turned on and off alternately as the material progresses. A staggered weld 81 is formed as shown in FIG.

After passing through the above tacking work, the integrated members are sent to the main welding apparatus C shown in FIGS. 2 and 3. Of course, in this welding apparatus C, there is no need for positioning, and it is only necessary to hold the member in a predetermined position. This role is played by an inlet side holding roller 51 and an outlet side holding roller 51' pushed out by hydraulic cylinders 50, 50', and each supports the belly material 2. When the tip of the member comes to the tip detection photoelectric switch 102 while being temporarily attached, the drive motor 1
6 is temporarily stopped, and the holding rollers 51, 51' are set. Further, a support roller 60 is also set by the hydraulic cylinder 61. At the bottom, the push-up cylinder 65 is connected to the base 6 in the same way as the advance tack welding device B.
6 according to the guide 67, drive motor 68
Press the driving roller 69 connected to the bottom surface of the facing material 1,
The face material 1 is sandwiched between the support roller 60 and the support roller 60. Further, a grounding roller 52 is mounted on the base 66 shown in enlarged detail in FIGS. 8 to 10, and the face material 1
touches the bottom surface of When the drive motor 68 operates in this state, the member is fed again. An encoder (rotary speed detector) 91 is provided on the gear of the drive roller 69 via a gear 90 to detect the feed speed and provide feedback to the drive motors 16 and 68 to maintain a constant welding speed. .

In this state, the copying terminal 72 copies the welding line, the copying device 70 is activated, and the four welding torches 71 are fed with welding wire from the wire feeding device 73.
Main welding 82 is performed. The main welded parts are sent out to the carry-out conveyor 31, and when the rear end of the parts reaches the rear end detection photoelectric switch 103, the advance tack welding device automatically returns to the initial state, and furthermore, the rear end detection photoelectric switch 103 At the switch 104, the machine stops, the main welding equipment stops, the rollers are released, and the unloading conveyor 31
This is the welding equipment that will be carried out.

[Effect of idea]

As explained above, the present invention has been able to reduce equipment costs and minimize the occupied space by consolidating equipment, and has achieved a significant reduction in man-hours through automation. crimping reduces equipment costs and increases flexibility in terms of target materials.

[Brief explanation of the drawing]

Figure 1 shows the temporary attachment and attachment of members according to an embodiment of the present invention.
Figure A showing the main welding state is an explanatory diagram in which only the tips of the face material and the bottom material are tack welded to the regular shape, and Figure B is an explanatory diagram showing the state in which tack welding and final welding are carried out in a staggered manner as they are transferred. Fig. 2 is a front view showing the configuration of the hull vertical bone welding device according to this embodiment, Fig. 3 is a plan view of Fig. 2 according to this embodiment, and Fig. 4 is a preliminary tack welding according to this embodiment. FIG. 5 is a plan view showing the configuration of the device, FIG. 5 is a front view of FIG. 4 according to this embodiment, FIG. 6 is a side view of FIG. 4 according to this embodiment, and FIG. 7 is a temporary diagram of this embodiment. 8 is a plan view showing the configuration of the welding apparatus according to this embodiment, FIG. 9 is a front view of FIG. 8 according to this embodiment, and FIG. 10 is a diagram showing the present embodiment. 8 is a side view, FIG. 11 is a plan view showing the configuration of a conventional main welding device, FIG. 12 is a front view of the conventional welding device in FIG. 11, and FIG. 13 is a conventional FIG. 12 A-A It is an explanatory view of the main welding state as seen from the arrow. 1... Face material, 2... Bottom material, 3, 3'... Hydraulic cylinder, 4, 4'... Positioning roller, 5, 5'...
...Hydraulic cylinder, 6,6'...Positioning roller,
7... Support roller, 8... Push-up cylinder, 9...
... Base, 10 ... Guide, 11 ... Drive roller, 12 ... Pressure cylinder, 13 ... Pressure roller, 14 ... Presser roller, 15 ... Hydraulic cylinder, 16 ... Drive motor, 20 ... Copying device, 2
1... Tack welding torch, 22... Copy terminal, 23
... Wire feeding device, 30 ... Carrying conveyor, 3
1... Carrying out conveyor, 50, 50'... Hydraulic cylinder, 51, 51'... Holding roller, 52... Earth roller, 60... Support roller, 61... Hydraulic cylinder, 65... Pushing cylinder, 66 ... Base, 67 ... Guide, 68 ... Drive motor, 6
9... Drive roller, 70... Copying device, 71...
Welding torch, 72... Copy terminal, 73... Wire feeding device, 80... Temporary welding for shape retention, 81...
...Staggered welding, 82...Main welding, 90...Gear, 9
1... Encoder, 101, 102... Lead edge detection photoelectric switch, 103, 104... Trailing edge detection photoelectric switch.

Claims (1)

[Scope of utility model registration request] In a vertical bone welding device that forms a T-shaped or L-shaped member by vertically disposing a belly material made of a long strip on the top surface of a face material made of a horizontally installed long strip, the face material and the belly material are Advance tack welding consists of a positioning mechanism for parts that tack weld only the tips to form a regular shape, a crimping mechanism for the parts, a mechanism for tracing the weld line of the parts, and a tack welding mechanism for tack welding the parts. Device,
and a holding roller section for the member tack welded and transported by the preceding tack welding device, a push-up roller section, a mechanism for copying the weld line of the member, and a main welding mechanism for main welding the member. A hull vertical bone welding device characterized by comprising the present welding device.