Welding tool and welding device for box type workpieces

Abstract

The utility model provides a welding tool and a welding device for box type workpieces, and belongs to the field of welding equipment.The welding tool for the box type workpieces comprises a concave fixed support, and a left support and a right support are rotationally installed on the outer sides of the left end and the right end of the fixed support respectively; a left clamping plate and a right clamping plate are arranged on the inner sides of the left end and the right end of the fixed support respectively, a horizontal clamping driving mechanism is arranged on the left clamping plate and / or the right clamping plate, a front telescopic ejector rod and a rear telescopic ejector rod are arranged at the front end and the rear end of the fixed support respectively, and rollers are arranged on the face, used for making contact with a workpiece, of the middle of the fixed support. The box type workpiece fixing device has the advantages that box type workpieces can be fixed, and a welding device is assisted in conducting automatic or semi-automatic welding operation; and the whole welding production line is simplified.

Description

TECHNICAL FIELD

[0001] The utility model belongs to welding equipment field, concretely relates to a welding frock and welding device for box type workpiece. BACKGROUND

[0002] In modern manufacturing industry, box type workpiece is widely used in automobile, aerospace, mechanical manufacturing and many other fields. At the same time, laser welding as a kind of efficient, high-precision welding process, has been more and more widely used in the welding of box type workpiece.

[0003] At present, the laser welding mode of conventional box type workpiece includes manual welding and machine welding, wherein, in the manual welding process, the welding seam quality of manual welding is often not as stable as machine welding due to the influence of skill level, operation habit and other factors of welder, and uneven welding seam, incomplete penetration, slag inclusion and other defects are prone to occur, thereby reducing the strength and sealing property of welding seam, appearance quality and the like; At the same time, since welder needs to contact high temperature, open fire and other dangerous factors, and harmful substances such as smoke and arc light generated in the welding process, it also has great safety hazards and health hazards.

[0004] In the machine welding process, corresponding frock fixture is often used to cooperate with welding robot to complete corresponding welding operation, but the existing welding fixture often only has the functions of clamping and fixing and turning, lacks the structure matched with conveying line, cannot be directly connected with conveying line and related production line for conveying the welding workpiece, so that the welding workpiece needs to be transferred by workers or carrying robot. UTILITY MODEL CONTENTS

[0005] The utility model aims at the problem that the existing welding fixture cannot be directly connected with conveying line for conveying the welding workpiece, proposes and designs a welding frock and welding device for box type workpiece, and makes it can directly cooperate with corresponding conveying line to realize the transfer of welding workpiece, without other auxiliary carrying equipment, so as to simplify the whole welding production line.

[0006] In order to achieve the above object, the utility model provides a technical scheme for welding tool for box type workpiece, including concave fixed support, the outside of left and right two ends of fixed support is rotatoryly installed with left support and right support respectively, the inside of left and right two ends of fixed support is provided with left clamping plate and right clamping plate respectively, left clamping plate and / or right clamping plate is provided with horizontal clamping drive mechanism, the front and rear two ends of fixed support are provided with front telescopic jacks and rear telescopic jacks respectively, and one side of the middle part of fixed support for contacting workpiece is provided with a roller. When the utility model is used to fix the box type workpiece, on the one hand, the utility model can realize the left and right clamping of the box type workpiece through the cooperation of left clamping plate and right clamping plate, and realize the vertical overturning of workpiece through the overturning of fixed support, on the other hand, the utility model can realize the front and rear clamping of the box type workpiece through the cooperation of front telescopic jacks and rear telescopic jacks, and can ensure the smooth forward and backward movement of the box type workpiece on fixed support through the cooperation of front telescopic jacks and rear telescopic jacks and the setting of roller, thereby ensuring the smooth movement of the box type workpiece from upstream conveying line to fixed support and from fixed support to downstream conveying line, without other auxiliary handling equipment and manual handling, thereby simplifying the whole welding production line.

[0007] Further, the horizontal clamping drive mechanism includes a horizontal power cylinder, the cylinder body of the horizontal power cylinder is fixedly installed on the fixed support, and the piston rod of the horizontal power cylinder is fixedly installed on the left clamping plate or the right clamping plate and drives the left clamping plate and the right clamping plate to move closer to or away from each other.

[0008] Further, the front and rear two ends of the fixed support are respectively provided with a front vertical power cylinder and a rear vertical power cylinder, the cylinder body of the front vertical power cylinder is fixedly installed on the fixed support, the piston rod of the front vertical power cylinder is fixedly installed on the front telescopic jack, and the front telescopic jack is slidingly installed on the fixed support in a direction perpendicular to the fixed support; the cylinder body of the rear vertical power cylinder is fixedly installed on the fixed support, the piston rod of the rear vertical power cylinder is fixedly installed on the rear telescopic jack, and the rear telescopic jack is slidingly installed on the fixed support in a direction perpendicular to the fixed support; when the piston rods of the front vertical power cylinder and the rear vertical power cylinder are in the retracted state, the front telescopic jack and the rear telescopic jack are lower than the side of the fixed support for contacting the workpiece; when the piston rods of the front vertical power cylinder and the rear vertical power cylinder are in the extended state, the front telescopic jack and the rear telescopic jack are higher than the side of the fixed support for contacting the workpiece, so as to ensure that the workpiece can be constrained during the loading and welding processes and can be avoided during the loading and unloading processes.

[0009] Further, the left and right ends of the fixed support are respectively provided with a left vertical telescopic mechanism and a right vertical telescopic mechanism, the movement direction of the left vertical telescopic mechanism and the movement direction of the right vertical telescopic mechanism are both perpendicular to the fixed support, and a cross bar is connected between the end of the left vertical telescopic mechanism away from the fixed support and the end of the right vertical telescopic mechanism away from the fixed support, so that the box type workpiece is constrained in the direction perpendicular to the fixed support through the cross bar.

[0010] Further, the left vertical telescopic mechanism and the right vertical telescopic mechanism are both power cylinders.

[0011] Further, a driving motor is mounted in the left support and / or the right support, an output shaft of the driving motor is drivingly connected with a speed reduction mechanism, an output shaft of the speed reduction mechanism is drivingly connected with the fixed support, and the fixed support is driven to rotate in the vertical plane.

[0012] In addition, the utility model also provides a kind of welding device, it includes the welding tool for box type workpiece described above, and is fixed to the box type workpiece to be welded by the welding tool for box type workpiece described above.

[0013] Further, it further includes welding support, welding support is installed about articulated robot one, articulated robot one's end is installed with laser welding head, and is welded by the laser welding head.

[0014] Further, it further includes feeding equipment, feeding equipment is located in the side of the welding tool for box type workpiece, and is completed feeding operation by the feeding equipment.

[0015] Further, feeding equipment includes articulated robot two, the end of articulated robot two is installed with suction mechanism, and one side of articulated robot two is provided with storage rack;Or, feeding equipment includes feeding conveying line, and feeding conveying line is located in the side of the welding tool for box type workpiece.

[0016] From the above technical scheme can be seen, the utility model has the following advantages: 1, in the use the welding tool for box type workpiece provided by the utility model is used to fix the box type workpiece, on one hand, the utility model can realize the left and right clamping of the box type workpiece through the cooperation of left clamping plate and right clamping plate, realize the clamping and fixation of the box type workpiece in the direction perpendicular to the fixed support through the cooperation of left vertical telescopic mechanism and right vertical telescopic mechanism, horizontal rod, realize the vertical overturning of workpiece through the overturning of fixed support, on the other hand, the utility model can realize the front and back clamping of the box type workpiece through the cooperation of front telescopic jib and rear telescopic jib, and can ensure that the box type workpiece can move smoothly on the fixed support through the cooperation of front telescopic jib and rear telescopic jib and the setting of roller, in turn ensure that the box type workpiece can be moved smoothly from the upstream conveying line to the fixed support and from the fixed production to the downstream conveying line, without other auxiliary handling equipment and manual handling, thereby simplifying the whole welding production line, 2, when the welding device provided by the utility model is used to weld the box type workpiece, it can realize the full-automatic welding operation of the box type workpiece through the cooperation of joint robot one and the welding tool for box type workpiece, and in the loading and unloading part, it can directly convey the spot-welded workpiece to the station by setting corresponding conveying line on both sides of the welding tool for box type workpiece, or directly carry out spot welding and full welding operation in the station by setting loading robot and storage rack on one side of the welding tool for box type workpiece. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme of the utility model, the following will briefly introduce the drawings needed to be used in the description, obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creating labor.

[0018] Figure 1 It is the structural schematic diagram of the embodiment one in the utility model;

[0019] Figure 2 It is the structural schematic diagram of the embodiment one in the utility model after removing left support and right support;

[0020] Figure 3 It is the structural schematic diagram of joint robot one and welding support in the utility model;

[0021] Figure 4 It is the structural schematic diagram of joint robot two and suction mechanism in the utility model.

[0022] Fig. 1, welding upright column; 2, welding cross beam; 3, laser welding head; 4, mounting bracket one; 5, horizontal clamping driving mechanism; 6, left vertical telescopic mechanism; 7, mounting bracket two; 8, rear telescopic ejector rod; 9, roller; 10, cross bar; 11, right clamping plate; 12, right vertical telescopic mechanism; 13, left side plate; 14, left clamping plate; 15, front vertical power cylinder; 16, front telescopic ejector rod; 17, right side plate; 18, left support; 19, box type workpiece; 20, right support; 30, suction mechanism. DETAILED DESCRIPTION

[0023] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the technical scheme of the utility model will be clearly and completely described below in combination with the drawings in the specific embodiments. Obviously, the embodiments described below are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the patent, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the patent.

[0024] Embodiment one

[0025] As shown in Figure 1 , Figure 2 , the embodiment one provides a welding tool for box type workpieces, which comprises a concave fixed support composed of a supporting flat plate and left and right side plates 13 and 17 vertically arranged on the left and right sides of the supporting flat plate, and the outer sides of the left and right side plates 13 and 17 arranged at the left and right ends of the fixed support are respectively rotatably installed with left and right supports 18 and 20, a driving motor is installed in the left and / or right support 18 and 20, the output shaft of the driving motor is drivingly connected with a speed reduction mechanism, and the output shaft of the speed reduction mechanism is drivingly connected with the fixed support, so as to drive the fixed support to rotate in the vertical plane.

[0026] The inner sides of the left and right side plates 13 and 17 arranged at the left and right ends of the fixed support are respectively provided with left and right clamping plates 14 and 11, and the left and / or right clamping plates 14 and 11 are provided with horizontal clamping driving mechanisms 5. Specifically in the embodiment one, the horizontal clamping driving mechanism 5 comprises a horizontal power cylinder, the cylinder body of the horizontal power cylinder is fixedly installed on the left side plate 13 of the fixed support through a mounting bracket one 4, and the piston rod of the horizontal power cylinder is fixedly installed on the left clamping plate 14, so as to drive the left clamping plate 14 to approach or move away from the right clamping plate 11, to perform horizontal clamping operation on the workpiece. In addition, in addition to the above structure, the horizontal power cylinder of the horizontal clamping driving mechanism 5 can also be separately arranged between the right side plate 17 and the right clamping plate 11, or one set of horizontal power cylinder is arranged between the left side plate 13 and the left clamping plate 14 and between the right side plate 17 and the right clamping plate 11.

[0027] In addition, the inner sides of the left side plate 13 and the right side plate 17 arranged at the left and right ends of the fixed support are respectively provided with a left vertical telescopic mechanism 6 and a right vertical telescopic mechanism 12, the movement directions of the left vertical telescopic mechanism 6 and the right vertical telescopic mechanism 12 are both perpendicular to the supporting flat plate of the fixed support, and a horizontal rod 10 is connected between the ends of the left vertical telescopic mechanism 6 and the right vertical telescopic mechanism 12 away from the fixed support. Thus, the box-shaped workpiece can be constrained in the direction perpendicular to the fixed support by the cooperation of the horizontal rod 10 and the supporting flat plate in the first embodiment. In the first embodiment, the left vertical telescopic mechanism 6 and the right vertical telescopic mechanism 12 are preferably power cylinders, which are fixedly installed on the supporting flat plate of the fixed support by the second mounting bracket 7.

[0028] The middle part of the supporting flat plate of the fixed support is provided with a roller 9 for contacting the workpiece, and the front and rear ends of the supporting flat plate of the fixed support are respectively provided with a front vertical power cylinder 15 and a rear vertical power cylinder. The cylinder body of the front vertical power cylinder 15 is fixedly installed on the side of the supporting flat plate of the fixed support away from the workpiece, the piston rod of the front vertical power cylinder 15 is fixedly installed with a front telescopic jacking rod 16, the front telescopic jacking rod 16 is slidingly installed on the fixed support in the direction perpendicular to the supporting flat plate of the fixed support, and the front telescopic jacking rod 16 can penetrate through the supporting flat plate and be higher than the side of the supporting flat plate of the fixed support for contacting the workpiece when the piston rod of the front vertical power cylinder 15 is in the extended state, so as to constrain the workpiece; the front telescopic jacking rod 16 is lower than the side of the fixed support for contacting the workpiece when the piston rod of the front vertical power cylinder 15 is in the retracted state, so as to avoid the workpiece.

[0029] The cylinder body of the rear vertical power cylinder is fixedly installed on the side of the supporting flat plate of the fixed support away from the workpiece, the piston rod of the rear vertical power cylinder is fixedly installed with a rear telescopic jacking rod 8, the rear telescopic jacking rod 8 is also slidingly installed on the fixed support in the direction perpendicular to the supporting flat plate of the fixed support, and the rear telescopic jacking rod 8 is lower than the side of the fixed support for contacting the workpiece when the piston rod of the rear vertical power cylinder is in the retracted state, so as to avoid the workpiece; the rear telescopic jacking rod 8 penetrates through the supporting flat plate and is higher than the side of the supporting flat plate of the fixed support for contacting the workpiece when the piston rod of the rear vertical power cylinder is in the extended state, so as to constrain the workpiece.

[0030] Based on this, when the welding fixture for box-shaped workpieces provided in Embodiment One is used to fix the box-shaped workpieces, on the one hand, Embodiment One can realize the left and right clamping of the box-shaped workpieces through the cooperation of the left clamping plate 14 and the right clamping plate 11, realize the clamping and fixing of the box-shaped workpieces in the direction perpendicular to the fixing support through the cooperation of the left vertical telescopic mechanism 6 and the right vertical telescopic mechanism 12 and the horizontal rod 10, and realize the vertical overturning of the workpieces through the overturning of the fixing support; on the other hand, Embodiment One can realize the front and back clamping of the box-shaped workpieces through the cooperation of the front telescopic top rod 16 and the rear telescopic top rod 8, and can ensure that the box-shaped workpieces can move smoothly on the fixing support through the cooperation of the front telescopic top rod 16 and the rear telescopic top rod 8 and the arrangement of the roller 9, thereby ensuring that the box-shaped workpieces can be moved smoothly from the upstream conveying line to the fixing support and from the fixing support to the downstream conveying line, without the need for other auxiliary carrying equipment and manual carrying, thereby simplifying the entire welding production line.

[0031] Embodiment Two

[0032] Embodiment Two provides a first welding device, which includes the welding fixture for box-shaped workpieces described in Embodiment One, and a welding support and a feeding device arranged on one side of the welding fixture for box-shaped workpieces. As shown in Figure 3 , the welding support includes a welding stand 1 and a welding cross beam 2 fixed on the upper end of the welding stand 1, and the welding cross beam 2 is located above the welding fixture for box-shaped workpieces, the lower end of the welding cross beam 2 is installed with a joint robot 1, the end of the joint robot 1 is installed with a laser welding head 3, and welding work is performed through the laser welding head 3. As shown in Figure 4 , the feeding device includes a joint robot 2, the end of the joint robot 2 is installed with a material suction mechanism 30, the material suction mechanism 30 adopts a conventional vacuum suction disc or other material suction structure, and one side of the joint robot 2 is provided with a material storage rack. In this way, when the welding device provided in Embodiment Two is used to weld box-shaped workpieces, the frame material to be welded can be placed on the welding fixture for box-shaped workpieces through the cooperation of the joint robot 2 and the material storage rack, and fixed through the welding fixture for box-shaped workpieces, then the plate material to be welded can be placed at the end of the frame material through the cooperation of the joint robot 2 and the material storage rack, and finally the welding work of the box-shaped workpieces can be realized through the cooperation of the joint robot 1 and the welding fixture for box-shaped workpieces.

[0033] Embodiment Three

[0034] Embodiment Three provides a second welding device, which includes the welding fixture for box-shaped workpieces described in Embodiment One, and a welding support and a feeding device arranged on one side of the welding fixture for box-shaped workpieces. As shown inFigure 3 As shown, the welding support includes a welding column 1 and a welding beam 2 fixed at the upper end of the welding column 1, and the welding beam 2 is located above the welding tool for box-shaped workpieces, the lower end of the welding beam 2 is installed with a joint robot 1, the end of the joint robot 1 is installed with a laser welding head 3, and welding operation is performed through the laser welding head 3. The feeding device includes a feeding conveying line, which is located on one side of the welding tool for box-shaped workpieces and aligned with the fixed support in the welding tool for box-shaped workpieces. In this way, when the welding device provided by the third embodiment is used to weld box-shaped workpieces, the entire box can be spot welded upstream first, and then the workpiece is conveyed to the welding tool for box-shaped workpieces through the feeding device. At this time, the front telescopic top rod 16 close to the feeding device is first controlled to retract below the fixed support, then the workpiece to be welded is conveyed to the fixed support through the feeding conveying line, then the front telescopic top rod 16 is controlled to above the fixed support, and the clamping operation of the workpiece is completed; finally, the welding operation of the box-shaped workpiece is realized through the cooperation of the joint robot 1 and the welding tool for box-shaped workpieces.

[0035] The above description of the disclosed embodiments enables a person skilled in the art to implement or use the present application. Various modifications to the embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A welding jig for a box-shaped workpiece, characterized by, The fixed support comprises a concave shape, and outer sides of left and right ends of the fixed support are respectively rotationally provided with a left support and a right support. Inner sides of the left and right ends of the fixed support are respectively provided with a left clamping plate and a right clamping plate. The left clamping plate and / or the right clamping plate are provided with a horizontal clamping driving mechanism. Front and rear ends of the fixed support are respectively provided with a front telescopic top rod and a rear telescopic top rod. One side of a middle part of the fixed support for contacting the workpiece is provided with a roller.

2. The welding tool for a box-shaped workpiece according to claim 1, characterized by, The horizontal clamping driving mechanism comprises a horizontal power cylinder, a cylinder body of the horizontal power cylinder is fixedly installed on the fixed support, and a piston rod of the horizontal power cylinder is fixedly installed on the left clamping plate or the right clamping plate.

3. The welding tool for a box-shaped workpiece according to claim 1, characterized by, The front and rear ends of the fixed support are respectively provided with a front vertical power cylinder and a rear vertical power cylinder. The cylinder body of the front vertical power cylinder is fixedly installed on the fixed support. The piston rod of the front vertical power cylinder is fixedly installed on the front telescopic top rod. The front telescopic top rod is slidingly installed on the fixed support in a direction perpendicular to the fixed support. The cylinder body of the rear vertical power cylinder is fixedly installed on the fixed support. The piston rod of the rear vertical power cylinder is fixedly installed on the rear telescopic top rod. The rear telescopic top rod is slidingly installed on the fixed support in a direction perpendicular to the fixed support. When the piston rods of the front vertical power cylinder and the rear vertical power cylinder are in a retracted state, the front telescopic top rod and the rear telescopic top rod are lower than the side of the fixed support for contacting the workpiece. When the piston rods of the front vertical power cylinder and the rear vertical power cylinder are in an extended state, the front telescopic top rod and the rear telescopic top rod are higher than the side of the fixed support for contacting the workpiece.

4. The welding tool for a box-shaped workpiece according to claim 1, characterized by, The left and right ends of the fixed support are respectively provided with a left vertical telescopic mechanism and a right vertical telescopic mechanism. The movement directions of the left vertical telescopic mechanism and the right vertical telescopic mechanism are both perpendicular to the fixed support. A horizontal rod is connected between an end of the left vertical telescopic mechanism away from the fixed support and an end of the right vertical telescopic mechanism away from the fixed support.

5. The welding tool for a box-shaped workpiece according to claim 4, characterized by, The left vertical telescopic mechanism and the right vertical telescopic mechanism are both power cylinders.

6. The welding tool for a box-shaped workpiece according to claim 1, characterized by, A driving motor is installed in the left support and / or the right support. An output shaft of the driving motor is drivingly connected with a speed reduction mechanism. An output shaft of the speed reduction mechanism is drivingly connected with the fixed support.

7. A welding device characterized by, The welding tool for the box-shaped workpiece comprises the welding tool for the box-shaped workpiece according to any one of claims 1-6.

8. The welding device of claim 7, wherein, The welding tool further comprises a welding support. A joint robot one is installed on the welding support. A laser welding head is installed at an end of the joint robot one.

9. The welding device of claim 7, wherein, The welding tool further comprises a feeding device. The feeding device is located at one side of the welding tool for the box-shaped workpiece.

10. The welding device of claim 9, wherein, The feeding device comprises a joint robot two. A suction mechanism is installed at an end of the joint robot two. A storage rack is arranged at one side of the joint robot two. Alternatively, the feeding device comprises a feeding conveying line. The feeding conveying line is located at one side of the welding tool for the box-shaped workpiece.

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