Positioning and welding device for new energy automobile sheet metal parts

Abstract

The invention relates to the field of sheet metal part positioning and welding, in particular to a new energy automobile sheet metal part positioning and welding device which comprises a machine body mechanism, a positioning mechanism is arranged on the machine body mechanism, a lifting mechanism is arranged in the machine body mechanism, and the top end of the lifting mechanism is connected with the positioning mechanism; a jacking mechanism is arranged in the lifting mechanism; the machine body mechanism comprises a machine body, a containing groove is formed in the upper surface of the machine body, a sheet metal part is clamped in the containing groove and coincides with the containing groove, then a welding part is attached to the hole wall of the upper end of a calibration hole, and a laser welding machine moves along a sliding groove; according to the sheet metal part welding device, the air cylinder is started to push up the sliding block and rotate the sliding block, so that the positioning hole is emptied, then the air cylinder is reset, the welded sheet metal part is pushed out through the jacking plate, and positioning welding and taking of the sheet metal part are simple and convenient.

Description

Technical Field

[0001] The invention relates to the field of sheet metal positioning welding, and in particular to a positioning welding device for sheet metal parts of new energy vehicles. Background Art

[0002] New energy vehicle sheet metal parts refer to the metal sheet parts used to form the body appearance and structure of new energy vehicles, mainly including body covering parts such as roof, doors, engine hood, trunk lid, and body structural parts such as longitudinal beams, cross beams, etc. In the production process of new energy vehicles, it is usually necessary to weld two sheet metal parts into one to meet different structural requirements. In addition, in order to ensure that the two sheet metal parts can be welded accurately, the two sheet metal parts are generally positioned first and then welded.

[0003] The existing sheet metal parts are generally transported to the welding position on the production line, and then the welded parts and the sheet metal parts are aligned through the docking assembly before being welded, which requires the processes of fixing the sheet metal parts, positioning the sheet metal parts, adjusting the docking assembly, and adjusting the docking assembly. In addition, the angles of the docking assembly are inconsistent after the position of the sheet metal parts is adjusted, which is not convenient for subsequent welding. The parts that need to be welded to fix the sheet metal parts are also consistent, and the welding position and angle are fixed. Therefore, it is necessary to propose a positioning welding device for sheet metal parts of new energy vehicles, which can fix the position of the sheet metal parts and then position the welded parts for welding. Summary of the invention

[0004] In view of the problems in the prior art, the present invention provides a positioning welding device for sheet metal parts of new energy vehicles.

[0005] The technical solution adopted by the present invention to solve the technical problem is: a positioning welding device for sheet metal parts of new energy vehicles, comprising a body mechanism, a positioning mechanism is arranged on the body mechanism, a lifting mechanism is arranged inside the body mechanism, the top of the lifting mechanism is connected to the positioning mechanism, and a lifting mechanism is arranged inside the lifting mechanism; The machine body mechanism comprises a machine body, a placement groove is provided on the upper surface of the machine body, a fixing cavity is provided inside the lower end of the machine body, a slide groove is provided on the outer wall of the machine body, a slider is slidably connected in the slide groove, and one end of the slider extends outside the machine body and is fixedly installed with a laser welding machine; The positioning mechanism comprises a positioning hole, the positioning hole is provided on the outer wall of the machine body, and the positioning hole is connected with the placement slot, a lifting slot is provided in the positioning hole, a lifting rod is slidably connected in the lifting slot, one end of the lifting rod extends into the positioning hole and is fixedly connected with a positioning block, and a calibration hole is provided through the positioning block; The lifting mechanism comprises a lifting hole and a receiving groove, wherein the lifting hole is formed through the hole wall at the lower end of the positioning hole, the lower end of the lifting rod passes through the lifting hole and extends into the fixed cavity, a first lifting plate is slidably connected in the fixed cavity, the receiving groove is formed at the groove bottom of the placement groove, a fixing hole is formed through the groove bottom of the receiving groove, a lifting plate is arranged inside the receiving groove, a connecting rod is fixedly connected to the lower end of the lifting plate, the lower end of the connecting rod extends into the fixed cavity and is fixedly connected to the second lifting plate; The lifting mechanism includes a bidirectional screw rod, which is rotatably connected between the cavity walls at the lower end of the fixed cavity through a bearing, a motor is fixedly installed on the outer wall of the body, and the output end of the motor is fixedly connected to the bidirectional screw rod through a coupling, and two screw nuts are threadedly connected to the bidirectional screw rod, and moving blocks are fixedly sleeved on the outer walls of the two screw nuts, and driving cylinders are fixedly installed on the upper surfaces of the two moving blocks, and the output ends of the two driving cylinders are movably connected to piston rods.

[0006] Specifically, a through hole is formed in the middle of the first lifting plate, and the position of the second lifting plate corresponds to the through hole.

[0007] Specifically, one end opening of the calibration hole is connected to the outside, the other end opening of the calibration hole is connected to the placement groove, and the upper end hole wall of the calibration hole is in contact with the welding piece.

[0008] Specifically, the welding head extends into the calibration hole and corresponds to the welding position.

[0009] Specifically, the outer side wall of the positioning block is in contact with the hole wall of the positioning hole, and the positioning block is arranged vertically.

[0010] Specifically, the lifting hole is communicated with the lifting slot, the lifting rod is slidably connected in the lifting hole and the lifting slot, the lower end of the lifting rod extends into the fixed cavity and the lower end is rotatably connected to the first lifting plate through a bearing.

[0011] Beneficial effects of the present invention: The positioning welding device for sheet metal parts of new energy vehicles described in the present invention, when in use, clamps the sheet metal part in the placement slot and overlaps with the placement slot, then fits the welded part with the upper hole wall of the calibration hole, and moves the laser welding machine along the slide slot, so that the welding weld point moves along the welding point between the welded part and the sheet metal part and welds them, and then starts the cylinder to lift the slider and rotate the slider to clear the positioning hole, and then resets the cylinder and pushes out the welded sheet metal part through the lifting plate, so that the positioning welding and removal of the sheet metal part are relatively simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0013] Figure 1 A structural schematic diagram of a welding state of a positioning welding device for a sheet metal part of a new energy vehicle provided by the present invention; Figure 2 A schematic structural diagram of a standby state of a positioning welding device for a sheet metal part of a new energy vehicle provided by the present invention; Figure 3 A schematic structural diagram of a welding completion state of a positioning welding device for a sheet metal part of a new energy vehicle provided by the present invention; Figure 4 A structural schematic diagram of a new energy vehicle sheet metal part positioning welding device provided by the present invention in a part-removing state; Figure 5 A schematic side view of the structure of a tack welding device for a sheet metal part of a new energy vehicle provided by the present invention in a tack welding state; Figure 6 A schematic diagram of the side structure of a positioning welding device for a sheet metal part of a new energy vehicle provided by the present invention in a part-removing state; Figure 7 A schematic diagram of the connection structure between a first lifting plate and a lifting rod of a positioning welding device for a new energy vehicle sheet metal part provided by the present invention.

[0014] In the figure: 11, machine body; 12, placement slot; 13, fixing cavity; 14, slide slot; 15, slider; 16, laser welding machine; 21, positioning hole; 22, lifting slot; 23, lifting rod; 24, positioning block; 25, calibration hole; 31, lifting hole; 32, storage slot; 33, first lifting plate; 34, fixing hole; 35, lifting plate; 36, connecting rod; 37, second lifting plate; 41, bidirectional screw; 42, motor; 43, screw nut; 44, moving block; 45, driving cylinder; 46, piston rod. DETAILED DESCRIPTION

[0015] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0016] like Figure 1-Figure 7 As shown, a positioning welding device for sheet metal parts of new energy vehicles described in the present invention comprises a body mechanism, a positioning mechanism is arranged on the body mechanism, a lifting mechanism is arranged inside the body mechanism, the top of the lifting mechanism is connected to the positioning mechanism, and a lifting mechanism is arranged inside the lifting mechanism; The machine body mechanism comprises a machine body 11, a placement groove 12 is provided on the upper surface of the machine body 11, the shape of the placement groove 12 matches the shape of the sheet metal part, a fixing cavity 13 is provided inside the lower end of the machine body 11, a slide groove 14 is provided on the outer side wall of the machine body 11, a slider 15 is slidably connected in the slide groove 14, one end of the slider 15 extends to the outside of the machine body 11 and is fixedly installed with a laser welding machine 16; The positioning mechanism includes a positioning hole 21, which is provided on the outer wall of the body 11 and communicates with the placement slot 12. A lifting slot 22 is provided in the positioning hole 21, and a lifting rod 23 is slidably connected in the lifting slot 22. One end of the lifting rod 23 extends into the positioning hole 21 and is fixedly connected with a positioning block 24. A calibration hole 25 is provided through the positioning block 24. The position of the calibration hole 25 is opposite to the welding position, and the upper end hole wall of the calibration hole 25 matches the angle of the welded part during welding. The lifting mechanism includes a lifting hole 31 and a receiving groove 32. The lifting hole 31 is formed through the hole wall at the lower end of the positioning hole 21. The lower end of the lifting rod 23 passes through the lifting hole 31 and extends into the fixed cavity 13. A first lifting plate 33 is slidably connected in the fixed cavity 13. The receiving groove 32 is formed at the bottom of the placement groove 12. A fixing hole 34 is formed through the bottom of the receiving groove 32. A lifting plate 35 is provided inside the storing groove 32. A connecting rod 36 is fixedly connected to the lower end of the lifting plate 35. The lower end of the connecting rod 36 extends into the fixed cavity 13 and is fixedly connected to a second lifting plate 37. The lifting mechanism includes a bidirectional screw rod 41, which is rotatably connected between the cavity walls at the lower end of the fixed cavity 13 through a bearing. A motor 42 is fixedly installed on the outer wall of the body 11, and the output end of the motor 42 is fixedly connected to the bidirectional screw rod 41 through a coupling. Two screw nuts 43 are threadedly connected to the bidirectional screw rod 41, and moving blocks 44 are fixedly sleeved on the outer walls of the two screw nuts 43. Driving cylinders 45 are fixedly installed on the upper surfaces of the two moving blocks 44, and the output ends of the two driving cylinders 45 are movably connected to piston rods 46.

[0017] Among them, a through hole is opened in the middle of the first lifting plate 33, and the position of the second lifting plate 37 corresponds to the through hole, so that when the driving cylinder 45 is located on both sides of the fixed cavity 13, it can push the first lifting plate 33 to rise, and when the driving cylinder 45 is located in the middle position of the fixed cavity 13, it can push the second lifting plate 37 to rise.

[0018] Among them, one end opening of the calibration hole 25 is connected to the outside, the other end opening of the calibration hole 25 is connected to the placement groove 12, and the upper end hole wall of the calibration hole 25 is in contact with the welding part, and the welding head of the laser welding machine 16 extends into the calibration hole 25 and corresponds to the welding position.

[0019] The outer wall of the positioning block 24 fits with the hole wall of the positioning hole 21 , and the positioning block 24 is vertically arranged so that the positioning block 24 maintains a fixed position under the limit of the positioning hole 21 , thereby facilitating the positioning of the weldment.

[0020] Among them, the lifting hole 31 is connected with the lifting slot 22, the lifting rod 23 is slidably connected in the lifting hole 31 and the lifting slot 22, the lower end of the lifting rod 23 extends into the fixed cavity 13 and the lower end is rotatably connected to the first lifting plate 33 through a bearing, so that when the first lifting plate 33 rises, the positioning block 24 will be driven to rise synchronously through the lifting rod 23, and after the positioning block 24 is separated from the positioning hole 21, the lifting rod 23 can drive the positioning block 24 to rotate and separate from the top of the positioning hole 21, thereby facilitating the weldment after welding to separate through the positioning hole 21.

[0021] When in use, first align the sheet metal part with the notch of the placement slot 12, and then lower it vertically until it is against the bottom of the placement slot 12, and at the same time, the sheet metal part overlaps with the slot wall of the placement slot 12, so that the sheet metal part is limited in the placement slot 12, and then the welding part can be inserted into the calibration hole 25, and its welding end is against the sheet metal part, and then the upper surface of the welding part is against the upper end hole wall of the calibration hole 25, so that the angle and position of the welding part are correct during welding, and then the slider 15 on the laser welding machine 16 can be inserted into the slide groove 14, and then the laser welding machine 16 is started to weld the connection between the welding part and the sheet metal part, and then the laser welding machine 16 is pushed, and the laser welding machine 16 moves in the slide groove 14 through the slider 15, so that the laser welding machine 16 moves in the slide groove 14 and welds the connection between the welding part and the sheet metal part along the track of the slide groove 14; after welding is completed, the driving cylinder 45 can be started, and the driving cylinder 45 will push the first lifting cylinder through the piston rod 46 The lowering plate 33 rises, and the first lifting plate 33 drives the positioning block 24 to rise through the lifting rod 23, so that the positioning block 24 is separated from the positioning hole 21. At this time, the lifting rod 23 and the positioning block 24 can be rotated to make the positioning block 24 separate from the top of the positioning hole 21 and release the limit on the welding part. Then, the driving cylinder 45 is started to drive the piston rod 46 to reset. After that, the motor 42 is started. The motor 42 drives the bidirectional screw rod 41 to rotate, and the bidirectional screw rod 41 drives the moving block 44 to move by cooperating with the screw nut 43, and the moving block 44 drives the driving cylinder 45 to move to the bottom of the second lifting plate 37. At this time, the driving cylinder 45 is started. The driving cylinder 45 pushes the second lifting plate 37 to rise through the piston rod 46. The second lifting plate 37 pushes the lifting plate 35 to rise through the connecting rod 36, and the lifting plate 35 lifts the sheet metal parts and the welded welded parts upward to the outside, so as to facilitate the later removal, so that the positioning welding and removal of the sheet metal parts are relatively simple, convenient and fast.

[0022] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A positioning welding device for sheet metal parts of new energy vehicles, including a body mechanism, characterized in that: The body mechanism is provided with a positioning mechanism, the body mechanism is provided with a lifting mechanism inside, the top of the lifting mechanism is connected to the positioning mechanism, and the lifting mechanism is provided with a jacking mechanism inside; The machine body mechanism comprises a machine body (11), a placement groove (12) is provided on the upper surface of the machine body (11), a fixing cavity (13) is provided inside the lower end of the machine body (11), a slide groove (14) is provided on the outer wall of the machine body (11), a slider (15) is slidably connected in the slide groove (14), and one end of the slider (15) extends outside the machine body (11) and is fixedly mounted with a laser welding machine (16); The positioning mechanism comprises a positioning hole (21), the positioning hole (21) is formed on the outer wall of the body (11), and the positioning hole (21) is connected to the placement groove (12), a lifting groove (22) is formed in the positioning hole (21), a lifting rod (23) is slidably connected in the lifting groove (22), one end of the lifting rod (23) extends into the positioning hole (21) and is fixedly connected to a positioning block (24), and a calibration hole (25) is formed through the positioning block (24); The lifting mechanism comprises a lifting hole (31) and a receiving groove (32); the lifting hole (31) is formed through a hole wall at the lower end of the positioning hole (21); the lower end of the lifting rod (23) passes through the lifting hole (31) and extends into the fixed cavity (13); a first lifting plate (33) is slidably connected in the fixed cavity (13); the receiving groove (32) is formed at the bottom of the placement groove (12); a fixing hole (34) is formed through the bottom of the receiving groove (32); a lifting plate (35) is arranged inside the receiving groove (32); a connecting rod (36) is fixedly connected to the lower end of the lifting plate (35); the lower end of the connecting rod (36) extends into the fixed cavity (13) and is fixedly connected to the second lifting plate (37); The lifting mechanism comprises a bidirectional screw (41), the bidirectional screw (41) being rotatably connected between the cavity walls at the lower end of the fixed cavity (13) via a bearing, a motor (42) being fixedly mounted on the outer wall of the machine body (11), the output end of the motor (42) being fixedly connected to the bidirectional screw (41) via a coupling, two screw nuts (43) being threadedly connected to the bidirectional screw (41), the outer walls of the two screw nuts (43) being fixedly sleeved with moving blocks (44), the upper surfaces of the two moving blocks (44) being fixedly mounted with driving cylinders (45), and the output ends of the two driving cylinders (45) being movably connected with piston rods (46).

2. A positioning welding device for sheet metal parts of new energy vehicles according to claim 1, characterized in that: A through hole is provided in the middle of the first lifting plate (33), and the position of the second lifting plate (37) corresponds to the through hole.

3. The positioning welding device for sheet metal parts of new energy vehicles according to claim 1 is characterized in that: One end opening of the calibration hole (25) is in communication with the outside, the other end opening of the calibration hole (25) is in communication with the placement groove (12), and the upper end hole wall of the calibration hole (25) is in contact with the welding piece.

4. The positioning welding device for sheet metal parts of new energy vehicles according to claim 1 is characterized in that: The welding head of the laser welding machine (16) extends into the calibration hole (25) and corresponds to the welding position.

5. The positioning welding device for sheet metal parts of new energy vehicles according to claim 1 is characterized in that: The outer side wall of the positioning block (24) fits into the hole wall of the positioning hole (21), and the positioning block (24) is arranged in a vertical shape.

6. The positioning welding device for sheet metal parts of new energy vehicles according to claim 1 is characterized in that: The lifting hole (31) is connected to the lifting slot (22), the lifting rod (23) is slidably connected in the lifting hole (31) and the lifting slot (22), the lower end of the lifting rod (23) extends into the fixed cavity (13) and the lower end is rotatably connected to the first lifting plate (33) via a bearing.

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