Vehicle support laser welding device

Abstract

The invention provides a vehicle support laser welding device which comprises two vertical supports and a laser welding head, the vertical supports are connected through a reinforcing rod, guide wheels are rotationally installed on the vertical supports, a plate type conveying belt is arranged between the guide wheels in a sleeving mode, a plurality of evenly-distributed positioning openings are formed in the plate type conveying belt, and the laser welding head is connected with the positioning openings. The side portion of the plate type conveying belt is connected with a movable table through a connecting arm, a positioning structure capable of positioning a vehicle support is arranged on the movable table, an auxiliary base is installed on the reinforcing rod, a lifting type machine shell is arranged on the auxiliary base, and a gear ring is rotatably installed at the bottom of the lifting type machine shell through a fixing shaft. The laser welding head is connected to the gear ring through a fixing arm, a steering motor is installed on the fixing shaft through a motor plate, the end of an output shaft of the steering motor is connected with a power gear, and the plate type conveying belt is further connected with a linkage module capable of enabling the plate type conveying belt to move.

Description

Technical Field

[0001] The present invention belongs to the technical field of laser welding, and relates to a laser welding device for vehicle brackets. Background Art

[0002] As a structural component widely used inside vehicles, vehicle brackets must undergo a series of fine processing procedures during their production process. Among these procedures, laser welding plays a crucial role. Laser welding equipment, as a cutting-edge welding technology, uses a high-energy-density laser beam as a heat source. By precisely adjusting the output power of the laser, the focal position, and the scanning path, it can achieve rapid, efficient, and precise welding of vehicle bracket materials. This welding technology not only improves the welding accuracy and quality but also significantly reduces the heat-affected area of the materials, ensuring the structural strength and durability of vehicle brackets.

[0003] Current laser welding equipment for vehicle brackets cannot achieve continuous welding of multiple vehicle brackets when performing laser welding tasks. Whenever one welding is completed, the vehicle bracket must be disassembled first before the next welding can be carried out. Therefore, it is very necessary to design a laser welding device for vehicle brackets. Summary of the Invention

[0004] The purpose of the present invention is to address the above problems existing in the prior art and propose a laser welding device for vehicle brackets.

[0005] The purpose of the present invention can be achieved by the following technical solutions: A laser welding device for vehicle brackets includes two vertical supports and a laser welding head. It is characterized in that the vertical supports are connected by a reinforcing rod. Guide wheels are rotatably installed on the column supports. A plate-type conveyor belt is sleeved between the guide wheels. The plate-type conveyor belt has a number of positioning ports evenly distributed thereon. The side of the plate-type conveyor belt is connected to a movable table through a connecting arm. A positioning structure capable of positioning the vehicle bracket is provided on the movable table. An auxiliary seat is installed on the reinforcing rod. A lifting housing is provided on the auxiliary seat. The lifting housing is connected to a driving structure capable of driving it up and down. A gear ring is rotatably installed at the bottom of the lifting housing through a fixed shaft. The laser welding head is connected to the gear ring through a fixed arm, and the working head of the laser welding head can move up and down. A steering motor is installed on the fixed shaft through a motor plate. The end of the output shaft of the steering motor is connected to a driving gear, and the driving gear meshes with the gear ring. The plate-type conveyor belt is also connected to a linkage module capable of making it move.

[0006] With this structure, the vehicle-mounted bracket is fixed to the movable table through the positioning structure. The lifting housing is moved downward by the driving structure. The lifting housing drives the laser welding head to move downward. The driving wheel gear is rotated by the steering motor, and the power gear drives the gear ring to rotate, thereby driving the laser welding head to rotate. The laser welding operation of the vehicle-mounted bracket can be completed by using the laser welding head. At the same time, under the action of the linkage module, the plate conveyor belt can be operated as needed to drive the moving table to move, so that the entire welding can be continuously operated.

[0007] The positioning structure includes a placement table, a quick clamp one, a quick clamp two, a quick clamp three, and an L-shaped limiting member. The placement table is installed on the movable table. The quick clamp one is installed in the middle of the placement table through a fixing seat one, and the rod body of the quick clamp one is vertically downward. The end of the rod body of the quick clamp one is connected to an L-shaped pressing block. The quick clamp two is installed at one end of the placement table through a fixing seat two, and the rod body of the quick clamp two is horizontally arranged. The end of the rod body of the quick clamp two is connected to a lateral pressing block one. The quick clamp three is installed at the other end of the placement table through a fixing seat three, and the rod body of the quick clamp three is horizontally arranged. The end of the rod body of the quick clamp three is connected to a lateral pressing block two.

[0008] A plurality of positioning pins are installed on the placement table.

[0009] With this structure, the vehicle-mounted bracket includes a plate-shaped body one and a cylindrical body two. The body one is positioned on the placement table through the positioning pins and fixed by the lateral pressing block one and the lateral pressing block two. Then, the body two is pressed on the body one by the L-shaped pressing block, thus completing the fixing preparation before welding of the vehicle-mounted bracket, and the positioning is reliable.

[0010] The placement table also has a U-shaped blocking cover.

[0011] The driving structure includes a vertical plate, a rodless cylinder, and a transmission arm. The vertical plate is connected to the auxiliary seat through a mounting frame. The rodless cylinder is vertically installed on the vertical plate. The slide of the rodless cylinder is connected to one end of the transmission arm. The other end of the transmission arm is connected to one side of the lifting housing.

[0012] With this structure, the slide of the rodless cylinder can drive the transmission arm to move up and down, and the transmission arm drives the lifting housing to move up and down.

[0013] Upper and lower limit members are also installed on the vertical plate.

[0014] The linkage module includes a swing-type linkage push rod, a restrictive guide seat, an auxiliary positioning swing arm, and an auxiliary support seat. The restrictive guide seat and the auxiliary support seat are both installed on the auxiliary seat. The restrictive guide seat has a channel for the plate conveyor belt to pass through. A right-angled trapezoidal working block is also installed on the restrictive guide seat. A support wheel is installed on the auxiliary support seat. A connecting block is installed at the other end of the lifting housing. The upper end of the auxiliary positioning swing arm is rotatably connected to the connecting block. The lower end of the auxiliary positioning swing arm can be inserted into the positioning port. A wheel that cooperates with the right-angled trapezoidal working block is also installed at the lower end of the auxiliary positioning swing arm. A vertical rod is also provided on the connecting block. There is a first spring between the middle of the vertical rod and the swing-type linkage push rod. The lower end of the auxiliary positioning swing arm is rotatably connected to the auxiliary support seat. An electromagnet that cooperates with the plate conveyor belt is provided at the upper end of the auxiliary positioning swing arm. There is a second spring between the middle of the auxiliary positioning swing arm and the auxiliary support seat. A limiting stop rod that cooperates with the swing-type linkage push rod is also provided on the connecting block.

[0015] With this structure, whenever the lifting housing moves downward, the lower end of the auxiliary positioning swing arm is inserted into the positioning port. Under the cooperation of the wheel and the right-angled trapezoidal working block, the plate conveyor belt is pushed to automatically move forward a specified distance. When the lifting housing resets upward, under the cooperation of the electromagnet, the plate conveyor belt can be fixed to prevent accidental sliding, and the linkage effect is good.

[0016] An adjustment block is installed on the connecting block. The limiting stop rod is horizontally slidably connected to the adjustment block. A locking screw is also threadedly connected to the adjustment block.

[0017] With this structure, the position of the limiting stop rod can be adjusted to meet different requirements for the pushing stroke.

[0018] The locking screw is a hand-tightening part.

[0019] A control box is also installed on one of the vertical supports. The laser welding head, the steering motor, the rodless cylinder, and the electromagnet are all connected to the control box through wires.

[0020] Compared with the prior art, the vehicle-mounted bracket laser welding device has the following advantages: In the present invention, the vehicle-mounted bracket is fixed to the movable table through the positioning structure. The lifting housing is driven to move downward through the driving structure. The lifting housing drives the laser welding head to move downward. The driving wheel gear is driven to rotate by the steering motor. The power gear drives the gear ring to rotate, and then drives the laser welding head to rotate. The laser welding operation of the vehicle-mounted bracket can be completed by using the laser welding head. At the same time, under the action of the linkage module, the plate conveyor belt can be operated as needed to drive the moving table to move, and thus the entire welding can be continuously operated. Description of the Drawings

[0021] Figure 1 is a schematic plan view of the present invention; Figure 2 is a partial enlarged view at A; Figure 3 is a schematic plan view of the removed part in the present invention; Figure 4 is a schematic plan view of the positioning structure in the present invention; Figure 5 is a schematic three-dimensional view of the positioning structure in the present invention; In the figure, 1, vertical support; 2, reinforcing rod; 3, vehicle bracket; 4, guide wheel; 5, plate-type conveyor belt; 5a, positioning port; 601, restrictive guide seat; 602, right-angled trapezoidal working block; 603, wheel; 604, supporting wheel; 605, auxiliary supporting seat; 606, spring two; 607, auxiliary positioning swing arm; 608, electromagnet; 609, swing-type linkage push rod; 610, spring one; 611, connecting block; 612, limiting stop bar; 613, adjusting block; 614, locking screw; 701, vertical plate; 702, upper and lower limit members; 703, transmission arm; 704, rodless cylinder; 705, slide table; 801, lifting housing; 802, fixed shaft; 803, motor plate; 804, steering motor; 805, driving gear; 806, gear ring; 807, fixed arm; 808, laser welding head; 901, movable table; 902, connecting arm; 903, blocking cover; 904, placing table; 905, lateral pressing block two; 906, fixed seat three; 907, quick clamp three; 908, L-shaped pressing block; 909, quick clamp one; 910, fixed seat one; 911, L-shaped limiting member; 912, positioning pin; 913, quick clamp two; 914, fixed seat two; 915, lateral pressing block one. Specific embodiments

[0022] The following are specific embodiments of the present invention and in conjunction with the accompanying drawings, the technical solutions of the present invention will be further described, but the present invention is not limited to these embodiments.

[0023] As Figures 1 - 5As shown in the figure, the laser welding device for vehicle brackets 3 includes two vertical supports 1 and a laser welding head 808. The two vertical supports 1 are connected by a reinforcing rod 2. Guide wheels 4 are rotatably installed on the vertical supports. A plate-type conveyor belt 5 is sleeved between the guide wheels 4. The plate-type conveyor belt 5 has a number of positioning openings 5a evenly distributed thereon. In this embodiment, the number of positioning openings 5a is the same as the number of movable platforms 901 and their positions correspond one by one. The side of the plate-type conveyor belt 5 is connected to the movable platform 901 through a connecting arm 902. A positioning structure for positioning the vehicle bracket 3 is provided on the movable platform 901. An auxiliary seat is installed on the reinforcing rod 2. A lifting housing 801 is provided on the auxiliary seat. The lifting housing 801 is connected to a driving structure that can drive it to move up and down. A gear ring 806 is rotatably installed at the bottom of the lifting housing 801 through a fixed shaft 802. The laser welding head 808 is connected to the gear ring 806 through a fixed arm 807, and the working head of the laser welding head 808 can move up and down. A steering motor 804 is installed on the fixed shaft 802 through a motor plate 803. The end of the output shaft of the steering motor 804 is connected to a power gear 805, and the power gear 805 meshes with the gear ring 806. The plate-type conveyor belt 5 is also connected to a linkage module that can make it move. The laser welding head 808 is an existing product, and the use of the existing technology for laser welding the vehicle bracket 3 is adopted. With this structure, the vehicle bracket 3 is fixed to the movable platform 901 through the positioning structure. The driving structure is used to move the lifting housing 801 downward. The lifting housing 801 drives the laser welding head 808 to move downward. The steering motor 804 drives the driving gear to rotate, and the power gear 805 drives the gear ring 806 to rotate, thereby driving the laser welding head 808 to rotate. The laser welding operation of the vehicle bracket 3 can be completed by using the laser welding head 808. At the same time, under the action of the linkage module, the plate-type conveyor belt 5 can be operated as needed to drive the moving platform to move, so that the entire welding can be continuously operated.

[0024] The positioning structure includes a placement table 904, a quick clamp one 909, a quick clamp two 913, a quick clamp three 907, and an L-shaped limiting member 911. The placement table 904 is installed on the movable table 901. The quick clamp one 909 is installed in the middle of the placement table 904 through a fixed seat one 910, and the rod body of the quick clamp one 909 is vertically downward. The end of the rod body of the quick clamp one 909 is connected to an L-shaped pressing block 908. The quick clamp two 913 is installed at one end of the placement table 904 through a fixed seat two 914, and the rod body of the quick clamp two 913 is horizontally arranged. The end of the rod body of the quick clamp two 913 is connected to a lateral pressing block one 915. The quick clamp three 907 is installed at the other end of the placement table 904 through a fixed seat three 906, and the rod body of the quick clamp three 907 is horizontally arranged. The end of the rod body of the quick clamp three 907 is connected to a lateral pressing block two 905. Specifically, a plurality of positioning pins 912 are installed on the placement table 904, and the placement table 904 also has a U-shaped blocking cover 903. With this structure, the vehicle-mounted bracket 3 includes a plate-shaped body one and a cylindrical body two. The body one is positioned on the placement table 904 through the positioning pins 912 and fixed by the lateral pressing block one 915 and the lateral pressing block two 905. Then, the body two is pressed on the body one by the L-shaped pressing block 908, thus completing the fixation preparation before welding of the vehicle-mounted bracket 3, and the positioning is reliable.

[0025] The driving structure includes a vertical plate 701, a rodless cylinder 704, and a transmission arm 703. The vertical plate 701 is connected to the auxiliary seat through a mounting frame. The rodless cylinder 704 is vertically installed on the vertical plate 701. The slide 705 of the rodless cylinder 704 is connected to one end of the transmission arm 703, and the other end of the transmission arm 703 is connected to one side of the lifting housing 801. Specifically, upper and lower limit members 702 are also installed on the vertical plate 701. With this structure, the slide 705 of the rodless cylinder 704 can drive the transmission arm 703 to move up and down, and the transmission arm 703 drives the lifting housing 801 to move up and down.

[0026] The linkage module includes a swing linkage push rod 609, a limiting guide base 601, an auxiliary positioning swing arm 607, and an auxiliary support base 605. Both the limiting guide base 601 and the auxiliary support base 605 are installed on the auxiliary base. The limiting guide base 601 has a channel for the plate conveyor belt 5 to pass through. A right trapezoidal working block 602 is also installed on the limiting guide base 601. A support wheel 604 is installed on the auxiliary support base 605. A connecting block 611 is installed at the other end of the lifting housing 801. The upper end of the auxiliary positioning swing arm 607 is rotatably connected to the connecting block 611. The lower end of the auxiliary positioning swing arm 607 can be inserted into the positioning port 5a. A wheel 603 that cooperates with the right trapezoidal working block 602 is also installed at the lower end of the auxiliary positioning swing arm 607. There is also a vertical rod on the connecting block 611, and a first spring 610 is provided between the vertical rod and the middle part of the swing linkage push rod 609. The lower end of the auxiliary positioning swing arm 607 is rotatably connected to the auxiliary support base 605. An electromagnet 608 that cooperates with the plate conveyor belt 5 is provided at the upper end of the auxiliary positioning swing arm 607. A second spring 606 is provided between the middle part of the auxiliary positioning swing arm 607 and the auxiliary support base 605. A limiting stop rod 612 that cooperates with the swing linkage push rod 609 is also provided on the connecting block 611. In this embodiment, both the first spring 610 and the second spring 606 play the role of automatic reset; with this structure, whenever the lifting housing 801 moves downward, the lower end of the auxiliary positioning swing arm 607 is inserted into the positioning port 5a, and under the cooperation of the wheel 603 and the right trapezoidal working block 602, the plate conveyor belt 5 is pushed to automatically move forward a specified distance. When the lifting housing 801 resets upward, under the cooperation of the electromagnet 608, the plate conveyor belt 5 can be fixed to prevent accidental sliding, and the linkage effect is good.

[0027] An adjustment block 613 is installed on the connecting block 611. The limiting stop rod 612 is horizontally slidably connected to the adjustment block 613. A locking screw 614 is also threadedly connected to the adjustment block 613. Specifically, the locking screw 614 is a hand-tightening part; with this structure, the position of the limiting stop rod 612 can be adjusted to meet the requirements of different pushing stroke.

[0028] A control box is also installed on one of the vertical supports 1. The laser welding head 808, the steering motor 804, the rodless cylinder 704, and the electromagnet 608 are all connected to the control box through wires. This is an existing technology, and its circuit and connection structure do not need to be redesigned.

[0029] The above components are all common standard parts or parts known to those skilled in the art. Their structures and principles can all be known by those skilled in the art through technical manuals or by conventional experimental methods.

[0030] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art to which the present invention pertains may make various modifications or supplements to the described specific embodiments or use similar means for substitution, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A laser welding device for a vehicle bracket, comprising two vertical supports (1) and a laser welding head (808), characterized in that: The vertical supports (1) are connected via a reinforcement rod (2); a guide wheel (4) is rotatably mounted on the column support; a plate conveyor belt (5) is sleeved between the guide wheels (4); the plate conveyor belt (5) has a plurality of evenly distributed positioning openings (5a); the side of the plate conveyor belt (5) is connected to a movable platform (901) via a connecting arm (902); a positioning structure capable of positioning the vehicle bracket (3) is provided on the movable platform (901); an auxiliary seat is mounted on the reinforcement rod (2); a lifting housing (801) is provided on the auxiliary seat; the lifting housing (801) is connected to a lifting mechanism capable of driving the lifting housing (801) up and down. The lifting housing (801) is connected to a movable driving structure, a gear ring (806) is rotatably mounted on the bottom of the lifting housing (801) via a fixed shaft (802), the laser welding head (808) is connected to the gear ring (806) via a fixed arm (807), and the working head of the laser welding head (808) can move up and down, a steering motor (804) is mounted on the fixed shaft (802) via a motor plate (803), the output shaft end of the steering motor (804) is connected to a power gear (805), and the power gear (805) is meshed with the gear ring (806), and the plate conveyor belt (5) is also connected to a linkage module that enables it to move.

2. The laser welding device for a vehicle bracket according to claim 1, characterized in that: The positioning structure comprises a placement platform (904), a quick clamp 1 (909), a quick clamp 2 (913), a quick clamp 3 (907) and an L-shaped limiting member (911). The placement platform (904) is mounted on the movable platform (901). The quick clamp 1 (909) is mounted in the middle of the placement platform (904) via a fixing seat 1 (910). The rod of the quick clamp 1 (909) is vertically downward. The end of the rod of the quick clamp 1 (909) is connected to the L-shaped pressing block (908). The second quick clamp (913) is installed at one end of the placement platform (904) through the second fixing seat (914), and the rod body of the second quick clamp (913) is arranged horizontally, and the end of the rod body of the second quick clamp (913) is connected to the first lateral clamping block (915). The third quick clamp (907) is installed at the other end of the placement platform (904) through the third fixing seat (906), and the rod body of the third quick clamp (907) is arranged horizontally, and the end of the rod body of the third quick clamp (907) is connected to the second lateral clamping block (905).

3. The laser welding device for a vehicle bracket according to claim 2, characterized in that: A plurality of positioning pins (912) are installed on the placement platform (904).

4. The laser welding device for a vehicle bracket according to claim 1, characterized in that: The placement platform (904) is also provided with a U-shaped blocking cover (903).

5. The laser welding device for a vehicle bracket according to claim 1, characterized in that: The driving structure comprises a vertical plate (701), a rodless cylinder (704), and a transmission arm (703); the vertical plate (701) is connected to an auxiliary seat via a mounting frame; the rodless cylinder (704) is vertically mounted on the vertical plate (701); a slide table (705) of the rodless cylinder (704) is connected to one end of the transmission arm (703); and the other end of the transmission arm (703) is connected to one side of a lifting housing (801).

6. The laser welding device for a vehicle bracket according to claim 5, characterized in that: Upper and lower limit members (702) are also installed on the vertical plate (701).

7. The laser welding device for a vehicle bracket according to claim 1, characterized in that: The linkage module comprises a swing linkage push rod (609), a restriction guide seat (601), an auxiliary positioning swing arm (607) and an auxiliary support seat (605); the restriction guide seat (601) and the auxiliary support seat (605) are both mounted on the auxiliary seat; the restriction guide seat (601) has a channel for the plate conveyor belt (5) to pass through; the restriction guide seat (601) is also mounted with a right-angled trapezoidal working block (602); the auxiliary support seat (605) is mounted with a supporting wheel (604); the other end of the lifting housing (801) is mounted with a connecting block (611); the upper end of the auxiliary positioning swing arm (607) is rotatably connected to the connecting block (611); the lower end of the auxiliary positioning swing arm (607) can be inserted into the positioning The auxiliary positioning swing arm (607) is provided with a wheel (603) matched with the right-angle trapezoidal working block (602) at the lower end thereof, the connecting block (611) is provided with a vertical rod, a spring 1 (610) is provided between the vertical rod and the middle part of the swing-type linkage push rod (609), the lower end of the auxiliary positioning swing arm (607) is rotatably connected with the auxiliary support seat (605), the upper end of the auxiliary positioning swing arm (607) is provided with an electromagnet (608) matched with the plate conveyor belt (5), a spring 2 (606) is provided between the middle part of the auxiliary positioning swing arm (607) and the auxiliary support seat (605), and the connecting block (611) is provided with a limit lever (612) matched with the swing-type linkage push rod (609).

8. The laser welding device for a vehicle bracket according to claim 7, characterized in that: An adjustment block (613) is mounted on the connection block (611), the limit lever (612) is horizontally slidably connected to the adjustment block (613), and a locking screw (614) is threadedly connected to the adjustment block (613).

9. The laser welding device for a vehicle bracket according to claim 8, characterized in that: The locking screw (614) is a hand-tightened part.

10. The laser welding device for a vehicle bracket according to claim 5, characterized in that: A control box is also installed on one of the vertical supports (1), and the laser welding head (808), the steering motor (804), the rodless cylinder (704) and the electromagnet (608) are all connected to the control box via lines.

Images