L-rib plate unit welding device

Abstract

The present invention relates to the field of workpiece welding technology, and in particular to an L-rib plate unit welding device. Since it is relatively cumbersome to position and clamp the relative position between the L-plate and the L-rib plate, the positioning efficiency is low and the accuracy is prone to deviation, and there may be dust at the weld, and simple clamping and positioning may cause the weld to be larger, and there may be situations such as cold welding and air holes, and the welding is not sufficient, resulting in poor welding effect. An L-rib plate unit welding device includes an outer frame, a support seat is provided on the outer frame, an L-plate is placed on the support seat, and an L-rib plate is placed on the L-plate. The present invention can make the L-rib plate less likely to slide during subsequent welding and avoid direct contact to form damage under the action of the rubber pad, thereby making the subsequent welding more stable; and can synchronously position and clamp the L-plate and the L-rib plate, so that the relative position between the L-plate and the L-rib plate is more accurate, thereby making the subsequent welding more precise.

Description

Technical Field

[0001] The present invention relates to the technical field of workpiece welding, and in particular to an L-rib plate unit welding device. Background Art

[0002] L-rib unit welding refers to fixing the L-rib to the L-plate by welding to achieve the effect of strengthening the L-plate. Because the L-rib will generate thermal stress during the welding process, the traditional welding method usually clamps the L-rib at a specified position on the L-plate. At the same time, the position between the L-plate and the L-rib needs to be aligned multiple times. Then, the weld between the two is welded using laser welding to avoid deformation of the L-rib after welding and achieve the purpose of precise welding.

[0003] Since it is rather cumbersome to position and clamp the relative positions of the L-plate and the L-rib plate, and the traditional welding method is not convenient for synchronous positioning of the L-plate and the L-rib plate when performing unit welding of the L-rib plate, resulting in low positioning efficiency and easy deviation in accuracy, and dust may exist at the weld seam, and the existing welding device is not conducive to using a blower to blow away the dust at the weld seam, resulting in possible cold welds, air holes, etc. during welding. Furthermore, simple clamping and positioning may result in larger welds, which is difficult to meet the requirements of laser welding. The current welding device is difficult to clamp and position the L-rib plate and the L-plate, and then press the L-rib plate into close contact with the L-plate by means of compressed gas, resulting in insufficient welding, thereby resulting in poor welding effect for the L-plate and the L-rib plate. Summary of the Invention

[0004] In order to overcome the above shortcomings, the present invention provides an L-rib unit welding device, which can synchronously position the L-plate and the L-rib plate to improve the positioning efficiency and make the welding more precise, and can blow away the dust at the weld and apply pressure to the L-rib plate to make it in close contact with the L-plate so that the welding is more complete, thereby enhancing the welding effect.

[0005] The technical solution is: an L-rib unit welding device, including an outer frame, a support base is provided on the outer frame, an L-plate is placed on the support base, an L-rib is placed on the L-plate, a shell is provided on the support base, laser welding guns are installed on both sides of the shell, a limit frame is fixedly connected to the inside of the shell, a driving mechanism is provided between the shell and the limit frame, a clamping head is provided on the driving mechanism, and a positioning mechanism is provided between the driving mechanism and the support base.

[0006] Furthermore, the upper portion of the support seat has a V-shaped structure, which can fit the shape of the L-board and facilitate the placement of the L-board.

[0007] Furthermore, the driving mechanism includes an electric slide installed on the top of the shell, an electric slider is provided on the electric slide, a driving plate is installed at the bottom of the electric slider, a lower pressure groove and a flat groove that are interconnected are opened on the driving plate, a three-way pipe is vertically slidably connected to the middle of the limit frame, a pressure rod is fixed to the top of the three-way pipe, the pressure rod slides out of the top of the limit frame, and the top of the pressure rod is slidably located above the lower pressure groove.

[0008] Furthermore, the clamping head includes a sliding frame slidably connected to the bottom of the tee pipe, and both sides of the sliding frame are slidably connected to clamps, and the two clamps are symmetrically arranged on both sides above the L-rib plate. The bottom of the sliding frame is slidably connected to a sliding frame, and the two ends are respectively slidably connected to the two clamps. A tension spring is connected between the sliding frame and the sliding frame. The top of the sliding frame is fixed to an extrusion plate that slides in the sliding frame, and the extrusion plate has two symmetrically opened inclined grooves. The tops of the two sliding frames are respectively slidably connected to the two inclined grooves.

[0009] Furthermore, the invention also includes two rubber pads respectively arranged on the sides of the two clamping plates close to each other.

[0010] Furthermore, the positioning mechanism includes two extrusion frames respectively fixed to both sides of the tee pipe, and the two extrusion frames slide into both sides of the support seat respectively. The parts of the two extrusion frames located inside the support seat are symmetrically provided with two inclined grooves 2. Four positioning frames are slidingly connected to the V-shaped structure of the support seat. The two positioning frames on the same side are symmetrically arranged on both sides of the L-plate, and the tail ends of the four positioning frames are slidingly connected to the four inclined grooves 2 respectively.

[0011] Furthermore, it also includes a cleaning mechanism, which is arranged between the limit frame and the drive plate. The cleaning mechanism includes two gear blocks respectively fixed to both sides of the drive plate. Both sides of the top of the limit frame are rotatably connected to the limit shaft. The two limit shafts are connected to the limit frame with a torsion spring. The sides of the two limit shafts that are close to each other are fixed with tooth columns, and the ends of the two limit shafts that are away from each other are fixed with rocker arms. Blowers are installed at the bottom ends of the two rocker arms.

[0012] Furthermore, it also includes a pressure-applying mechanism for applying pressure between the L-plate and the L-rib plate. The pressure-applying mechanism is arranged between the positioning frame, the support seat, the limit frame and the three-way pipe. The pressure-applying mechanism includes two air cylinders respectively fixed to two of the positioning frames, and pistons are fixed to the other two positioning frames. The two pistons slide into the two air cylinders respectively. One end of the two air cylinders is connected to a hose. The middle parts of the two hoses are respectively connected to the upper parts of both sides of the support seat and are respectively fixed to both sides of the limit frame. The other ends of the two hoses are respectively connected to both sides of the three-way pipe.

[0013] 1. The present invention controls the electric slider to move the driving plate through the electric slide seat, and the lower pressure groove squeezes the pressure rod to drive the three-way pipe and the clamping head to move downward. The sliding frame presses against the top of the L-rib plate so that the extrusion plate no longer moves. The first inclined groove squeezes the clamping plate to position and clamp the upper part of the L-rib plate through the rubber pad. Under the action of the rubber pad, the L-rib plate is not easy to slide during subsequent welding and is prevented from being damaged by direct contact, thereby making the subsequent welding more stable; the downward movement of the three-way pipe drives the extrusion frame to move downward, and the second inclined groove squeezes the positioning frame to move and position and clamp the L-plate, which can synchronously position and clamp the L-plate and the L-rib plate, making the relative position between the L-plate and the L-rib plate more accurate, thereby making the subsequent welding more precise.

[0014] 2. The movement of the driving plate drives the gear block to move, which drives the limit shaft to rotate 120° and then stop rotating. The rotation of the limit shaft drives the swing arm and the blower to swing to the other side. While swinging, the blower blows high-pressure gas to the two welds between the L-plate and the L-rib plate, which can blow away the dust at the welds between the L-plate and the L-rib plate, effectively preventing the occurrence of cold welding, air holes, etc. in subsequent welding, and fundamentally enhancing the welding effect.

[0015] 3. The movement of the positioning frame drives the gas cylinder and the piston to move together. The piston compresses and squeezes the gas in the gas cylinder. The compressed gas enters the tee through the hose, thereby generating downward pressure on the clamping head. The compressed gas can be used to press the L-rib plate downward through the clamping head and make it in close contact with the L-plate, making the weld between the L-plate and the L-rib plate smaller, making the subsequent welding more sufficient and delicate, thereby further enhancing the welding effect of the L-plate and the L-rib plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0017] Figure 2 It is a schematic diagram of the cross-sectional three-dimensional structure of the present invention.

[0018] Figure 3 It is a partial cross-sectional three-dimensional structural diagram of the support base and the shell of the present invention.

[0019] Figure 4 It is a schematic diagram of a partially cutaway three-dimensional structure of the present invention.

[0020] Figure 5 It is a partially cutaway three-dimensional structural diagram of the driving mechanism of the present invention.

[0021] Figure 6 It is a schematic diagram of a partially cutaway three-dimensional structure of the clamping head of the present invention.

[0022] Figure 7It is a schematic diagram of the disassembled three-dimensional structure of the driving mechanism, clamping head and rubber pad of the present invention.

[0023] Figure 8 It is a schematic diagram of the three-dimensional structure of the positioning mechanism and the L-plate of the present invention.

[0024] Figure 9 It is a schematic diagram of the three-dimensional structure of the positioning mechanism and the pressure-applying mechanism of the present invention.

[0025] Figure 10 It is a schematic diagram of the disassembled three-dimensional structure of the positioning mechanism of the present invention.

[0026] Figure 11 It is a schematic diagram of the three-dimensional structure of the cleaning mechanism of the present invention.

[0027] Figure 12 It is a schematic diagram of the disassembled three-dimensional structure of the cleaning mechanism of the present invention.

[0028] Figure 13 It is a partially cutaway three-dimensional structural diagram of the pressure-applying mechanism of the present invention.

[0029] Figure 14 It is a schematic diagram of the disassembled three-dimensional structure of the pressure applying mechanism of the present invention.

[0030] The meaning of the reference numerals in the figure are as follows: 0: L plate, 00: L rib, 11: outer frame, 12: support seat, 13: shell, 14: laser welding gun, 15: limit frame, 21: electric slide, 211: electric slider, 22: drive plate, 221: lower pressure groove, 222: flat groove, 23: three-way pipe, 24: pressure rod, 31: slide frame, 32: splint, 33: slide frame, 34: tension spring, 35: extrusion plate, 351: inclined groove one, 4: rubber pad, 51: extrusion frame, 511: inclined groove two, 52: positioning frame, 61: tooth block, 62: limit shaft, 63: torsion spring, 64: tooth column, 65: rocker arm, 66: blower, 71: air cylinder, 72: piston, 73: hose. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] Example 1: An L-rib plate unit welding device, such as Figures 1-13As shown, it includes an outer frame 11, a support base 12 is provided on the outer frame 11, an L-plate 0 is placed on the support base 12, an L-rib plate 00 is placed on the L-plate 0, a shell 13 is provided on the support base 12, laser welding guns 14 are installed on both sides of the shell 13, a limit frame 15 is welded inside the shell 13, a driving mechanism is provided between the shell 13 and the limit frame 15, a clamping head for clamping and positioning the L-rib plate 00 is provided on the driving mechanism, and a positioning mechanism for positioning and clamping the L-plate 0 is provided between the driving mechanism and the support base 12.

[0033] The upper portion of the support base 12 is in a V-shaped structure, which can fit the shape of the L-board 0 and facilitate the placement of the L-board 0.

[0034] The driving mechanism includes an electric slide 21 installed on the top of the shell 13, and an electric slider 211 is provided on the electric slide 21. A driving plate 22 is installed at the bottom of the electric slider 211. The driving plate 22 is provided with a lower pressure groove 221 and a flat groove 222 that are interconnected. A three-way pipe 23 is vertically slidably connected to the middle of the limit frame 15, and a pressure rod 24 is welded to the top of the three-way pipe 23. The pressure rod 24 slides out of the top of the limit frame 15, and the top of the pressure rod 24 is slidably located above the lower pressure groove 221.

[0035] The clamping head includes a sliding frame 31 slidably connected to the bottom of the tee pipe 23, and both sides of the sliding frame 31 are slidably connected to clamps 32 for clamping and positioning the L-rib 00. The two clamps 32 are symmetrically arranged on both sides above the L-rib 00. The bottom of the sliding frame 31 is slidably connected to a sliding frame 33, and the two ends are respectively slidably connected to the two clamps 32. A tension spring 34 is connected between the sliding frame 33 and the sliding frame 31. An extrusion plate 35 is welded to the top of the sliding frame 33 and slides in the sliding frame 31. Two inclined grooves 351 are symmetrically opened on the extrusion plate 35, and the tops of the two sliding frames 33 are respectively slidably connected to the two inclined grooves 351.

[0036] The device further comprises two rubber pads 4 respectively arranged on one side of the two clamping plates 32 close to each other. The rubber pads 4 are used to prevent the L-rib plate 00 in the clamped state from sliding and avoid damage caused by direct contact.

[0037] The positioning mechanism includes two extrusion frames 51 respectively connected to the two sides of the tee pipe 23 by bolts, and the two extrusion frames 51 are respectively slidably inserted into the two sides of the support seat 12. The parts of the two extrusion frames 51 located inside the support seat 12 are symmetrically opened with two inclined grooves 511. Four positioning frames 52 are slidably connected to the V-shaped structure of the support seat 12. The two positioning frames 52 on the same side are respectively symmetrically arranged on both sides of the L plate 0. The tail ends of the four positioning frames 52 are respectively slidably connected to the four inclined grooves 511. The positioning frames 52 are used to position and clamp the L plate 0.

[0038] When it is necessary to place the L plate 0 and the L rib plate 00, the staff first places the L plate 0 on the V-shaped structure of the support seat 12, so that the L plate 0 and the V-shaped structure of the support seat 12 are attached and located between the four positioning frames 52, and then the staff places or supports the L rib plate 00 in the middle of the L plate 0; before welding, the staff first starts the electric slide 21 to control the movement of the electric slider 211, and the electric slider 211 drives the driving plate 22 to move, and the lower pressure groove 221 squeezes the pressure rod 24 to move downward, and the pressure rod 24 moves downward to drive the tee pipe 23, the clamping head and the rubber pad 4 to move downward. In the process of the clamping head moving downward, the sliding frame 3 3 will press against the top of the L rib 00 so that the extrusion plate 35 will no longer move. At the same time, the three-way pipe 23 continues to move downward for a distance and then squeezes the sliding frame 31, the clamping plate 32 and the rubber pad 4 to continue to move downward. The tension spring 34 is stretched. At this time, the two inclined grooves 351 will squeeze the two clamping plates 32 respectively, driving the two rubber pads 4 to move towards each other. The two clamping plates 32 move through the rubber pads 4 to position and clamp the upper part of the L rib 00. At this time, the staff in the supporting state no longer support the L rib 00. In this way, under the action of the rubber pads 4, the L rib 00 will not slide easily during subsequent welding and avoid direct contact. The two extrusion racks 51 are driven downwards by the three-way pipe 23, and the four inclined grooves 511 respectively squeeze the four positioning racks 52 to move towards the two sides of the L plate 0 and make contact, thereby making the four positioning racks 52 position and clamp the L plate 0. In this way, the L plate 0 and the L rib plate 00 can be positioned and clamped synchronously, so that the L plate 0 and the L rib plate 00 can be positioned and clamped. The relative position between the L-ribs 00 is more accurate, which makes the subsequent welding more precise; after the clamping and positioning of the L-plate 0 and the L-rib 00 are completed, the staff starts the two laser welding guns 14 at the same time, and the laser welding guns 14 will laser weld the weld between the L-plate 0 and the L-rib 00. After the welding is completed, the staff starts the electric slide 21 to control the electric slider 211 to reset. The reset of the electric slider 211 drives the drive plate 22 to reset, thereby resetting the pressure rod 24, the three-way pipe 23, the clamping head and the positioning mechanism, and no longer clamping the L-plate 0 and the L-rib 00. Then the staff can take out the welded L-plate 0 and the L-rib 00.

[0039] Example 2: Based on Example 1, Figure 2-Figure 7 、 Figure 11 and Figure 12As shown, it also includes a cleaning mechanism for cleaning the weld dust between the L plate 0 and the L rib plate 00. The cleaning mechanism is arranged between the limit frame 15 and the drive plate 22. The cleaning mechanism includes two tooth blocks 61 respectively connected to the two sides of the drive plate 22 by bolts. The top two sides of the limit frame 15 are rotatably connected to the limit shaft 62. The rotation angle of the limit shaft 62 on the limit frame 15 is limited to 120°. The two limit shafts 62 are connected to the limit frame 15 with a torsion spring 63. The sides of the two limit shafts 62 that are close to each other are connected to the tooth column 64 through a keyway. The two tooth blocks 61 move to engage with the two tooth columns 64 respectively. The ends of the two limit shafts 62 that are away from each other are connected to the rocker arm 65 by bolts. The bottom ends of the two rocker arms 65 are installed with a blower 66 for blowing away the weld dust.

[0040] Initially, the limiting shaft 62, the tooth column 64, the rocker arm 65 and the blower 66 are kept in a state of swinging to one side under the support of the torsion spring 63. When clamping and positioning the L plate 0 and the L rib plate 00, the staff also needs to start the two blowers 66. When the driving plate 22 moves, the two tooth blocks 61 will be driven to move together. After the L plate 0 and the L rib plate 00 are clamped and positioned, the two tooth blocks 61 continue to move for a distance and will engage with the two tooth columns 64 respectively. At this time, the two tooth blocks 61 continue to move and will drive the two limiting shafts 62 to rotate 120 degrees through the two tooth columns 64 and then stop rotating. The two torsion springs 63 are twisted, and the rotation of the two limiting shafts 62 will drive the two rocker arms 65 and the two blowers 66 together. When swinging to the other side, the two blowers 66 will blow high-pressure gas to the two welds between the L plate 0 and the L rib plate 00 while swinging. In this way, the dust at the welds between the L plate 0 and the L rib plate 00 can be blown away, effectively preventing the occurrence of cold welds, air holes, etc. in subsequent welding, thereby fundamentally enhancing the welding effect. The blowers 66 can then be turned off before welding. After welding is completed, the drive plate 22 is reset to drive the two gear blocks 61 to reset. The reset of the two gear blocks 61 will drive the two limit shafts 62, the two rocker arms 65 and the two blowers 66 to reset together through the two gear columns 64. The two torsion springs 63 are then reset and play a supporting role again. The two gear blocks 61 continue to reset and disengage from the two gear columns 64.

[0041] Example 3: Based on Example 2, Figure 2-Figure 4 and Figures 8-14As shown, a pressure mechanism for applying pressure between the L plate 0 and the L rib plate 00 is also included. The pressure mechanism is arranged between the positioning frame 52, the support seat 12, the limit frame 15 and the three-way pipe 23. The pressure mechanism includes two air cylinders 71 respectively connected to two of the positioning frames 52 by bolts. The two air cylinders 71 are arranged symmetrically with the center. The other two positioning frames 52 are connected with pistons 72 by bolts. The two pistons 72 are respectively slid into the two air cylinders 71. One end of the two air cylinders 71 is connected to a hose 73. The middle parts of the two hoses 73 are respectively connected to the upper parts of both sides of the support seat 12 and are respectively connected to the two sides of the limit frame 15 by bolts. The other ends of the two hoses 73 are respectively connected to the two sides of the three-way pipe 23.

[0042] While positioning and clamping the L plate 0 and the L rib plate 00, the four positioning frames 52 move and respectively drive the two gas cylinders 71 and the two pistons 72 to move accordingly. The two pistons 72 will compress and squeeze the gas in the two gas cylinders 71, and the compressed gas will enter the three-way pipe 23 through the two hoses 73 respectively, thereby generating downward pressure on the clamping head. In this way, the L rib plate 00 can be pressed downward by the clamping head through the compressed gas to make it in close contact with the L plate 0, making the weld between the L plate 0 and the L rib plate 00 finer, and making the subsequent welding more sufficient and delicate, thereby further enhancing the welding effect of the L plate 0 and the L rib plate 00; when the welding is completed, the four positioning frames 52 are reset, driving the two pistons 72 and the two gas cylinders 71 to reset, and then the gas is no longer compressed, and the excess gas in the three-way pipe 23 will return to the gas cylinder 71.

[0043] While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. The scope of the following claims is to be accorded the broadest interpretation so as to encompass all modifications and equivalent structures and functions.

Claims

1. An L-rib plate unit welding device, characterized in that: The invention comprises an outer frame (11), a support seat (12) is provided on the outer frame (11), an L-plate (0) is placed on the support seat (12), an L-rib plate (00) is placed on the L-plate (0), a shell (13) is provided on the support seat (12), laser welding guns (14) are installed on both sides of the shell (13), a limit frame (15) is fixedly connected inside the shell (13), a driving mechanism is provided between the shell (13) and the limit frame (15), a clamping head is provided on the driving mechanism, and a positioning mechanism is provided between the driving mechanism and the support seat (12); The upper portion of the support seat (12) is in a V-shaped structure, which can fit the shape of the L-plate (0) and facilitate the placement of the L-plate (0); The driving mechanism includes an electric slide (21) installed on the top of the housing (13), an electric slider (211) is provided on the electric slide (21), a driving plate (22) is installed at the bottom of the electric slider (211), a lower pressure groove (221) and a flat groove (222) are opened on the driving plate (22), the middle of the limit frame (15) is vertically slidably connected to a three-way pipe (23), the top of the three-way pipe (23) is fixedly connected to a pressure rod (24), the pressure rod (24) slides out of the top of the limit frame (15), and the top of the pressure rod (24) is slidably located above the lower pressure groove (221); The clamping head includes a sliding frame (31) slidably connected to the bottom of the three-way pipe (23), and clamps (32) are slidably connected to both sides of the sliding frame (31). The two clamps (32) are symmetrically arranged on both sides above the L-rib (00). The bottom of the sliding frame (31) is slidably connected to a sliding frame (33) and the two ends are respectively slidably connected to the two clamps (32). A tension spring (34) is connected between the sliding frame (33) and the sliding frame (31). The top of the sliding frame (33) is fixed with an extrusion plate (35) that slides in the sliding frame (31). Two inclined grooves (351) are symmetrically opened on the extrusion plate (35), and the tops of the two clamps (32) are respectively slidably connected to the two inclined grooves (351). The positioning mechanism includes two extrusion frames (51) respectively fixed to both sides of the three-way pipe (23), and the two extrusion frames (51) are respectively slidably inserted into both sides of the support seat (12), and the parts of the two extrusion frames (51) located inside the support seat (12) are symmetrically provided with two inclined grooves (511), and four positioning frames (52) are slidably connected to the V-shaped structure of the support seat (12), and the two positioning frames (52) on the same side are symmetrically arranged on both sides of the L plate (0), and the tail ends of the four positioning frames (52) are respectively slidably connected to the four inclined grooves (511).

2. The L-rib plate unit welding device according to claim 1, characterized in that: It also includes two rubber pads (4) respectively arranged on one side of the two clamping plates (32) close to each other.

3. The L-rib plate unit welding device according to claim 1, characterized in that: The cleaning mechanism is also included. The cleaning mechanism is arranged between the limit frame (15) and the drive plate (22). The cleaning mechanism includes two tooth blocks (61) respectively fixed to both sides of the drive plate (22). Both sides of the top of the limit frame (15) are rotatably connected to the limit shaft (62). The two limit shafts (62) are connected to the limit frame (15) by a torsion spring (63). The sides of the two limit shafts (62) close to each other are fixed with tooth columns (64). The ends of the two limit shafts (62) away from each other are fixed with rocking rods (65). The bottom ends of the two rocking rods (65) are both equipped with blowers (66).

4. The L-rib plate unit welding device according to claim 3, characterized in that: The invention also includes a pressure mechanism for applying pressure between the L plate (0) and the L rib plate (00), the pressure mechanism being arranged between the positioning frame (52), the support seat (12), the limit frame (15) and the three-way pipe (23), the pressure mechanism including two air cylinders (71) respectively fixed on two of the positioning frames (52), pistons (72) fixed on the other two positioning frames (52), the two pistons (72) respectively slidingly penetrate the two air cylinders (71), one end of each of the two air cylinders (71) is connected to a hose (73), the middle parts of the two hoses (73) are respectively connected to the upper parts of both sides of the support seat (12) and are respectively fixed to both sides of the limit frame (15), and the other ends of the two hoses (73) are respectively connected to both sides of the three-way pipe (23).

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