Positioning manipulator for welding front longitudinal beam assembly

Abstract

The utility model discloses a positioning manipulator for welding a front longitudinal beam assembly, which comprises a working rack, the top of the working rack is provided with a base, the top of the base is provided with a positioning mechanical arm, one end of the positioning mechanical arm is provided with a claw body component, a welding gun is clamped in the claw body component, and the claw body component is provided with a clamping groove. A plurality of evenly-arranged guide cylinders are installed on the positioning mechanical arm, the top of the welding gun is fixedly connected with a collection wire penetrating through the interiors of the guide cylinders, two L-shaped folded plates arranged in a mirror image mode are further installed on the positioning mechanical arm, and stepping motors are installed on the two L-shaped folded plates. The output ends of the two stepping motors are fixedly sleeved with rolling wheels. According to the utility model, the collection lead between the collection rolling wheel and the claw body assembly can be effectively ensured to be always close to the state of being attached to the surface of the positioning mechanical arm, so that the arching collection lead is effectively prevented from interfering with the welding operation of the front longitudinal beam assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of manipulators, in particular to a positioning manipulator for welding a front longitudinal beam assembly. Background Art

[0002] When the front longitudinal beam assembly is fixed on the workbench waiting for welding, it is usually necessary to cooperate with the positioning robot to move the welding gun to the predetermined welding path to complete the welding operation of the front longitudinal beam assembly. As the posture of the robot changes, the wires on the top of its welding gun will be subjected to corresponding tension, causing the positioning robot to be in a certain posture. The wires of the welding gun will appear to arch upward or droop downward, which may then cause interference in the welding operation of the front longitudinal beam assembly. Utility Model Content

[0003] In view of the deficiencies of the prior art, the purpose of the present invention is to provide a positioning robot for welding a front longitudinal beam assembly, so as to solve the problem mentioned in the background technology that as the posture of the positioning robot changes, the originally fitted welding gun wire is easily caused to arch upward or droop downward.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a positioning manipulator for welding a front longitudinal beam assembly, comprising a workbench, a base is arranged on the top of the workbench, a positioning manipulator arm is installed on the top of the base, and a claw assembly is installed at one end of the positioning manipulator arm;

[0005] A welding gun is clamped in the claw body assembly, and a plurality of evenly arranged guide cylinders are installed on the positioning robot arm. The top of the welding gun is fixedly connected to a collective wire passing through the inside of the guide cylinder. Two mirror-arranged L-shaped folding plates are also installed on the positioning robot arm, and stepper motors are installed on both L-shaped folding plates. The output ends of the two stepper motors are fixedly sleeved with rolling wheels, and the two rolling wheels are respectively clamped on both sides of the collective wire.

[0006] Preferably, the claw body assembly includes an assembly plate installed at one end of the positioning robot arm, two electric telescopic rods are installed inside the assembly plate, and side clamping plates are installed at the free ends of the two electric telescopic rods.

[0007] Preferably, one side opposite to the two side clamps is fitted with a workpiece cushion, and one side opposite to the two workpiece cushions is provided with an anti-slip groove.

[0008] Preferably, a slot plate is fixedly mounted on opposite sides of the two workpiece cushions, an elastic structure is mounted on one side of the side clamping plate, and a limit block adapted to the slot plate is connected to the bottom of the elastic structure.

[0009] Preferably, a slot is provided on one side of the slot plate, a telescopic spring is installed inside the limit block, and one end of the telescopic spring is fixedly connected to a plug-in column adapted to the slot.

[0010] Preferably, a through slot is provided on the top of the workbench, a servo motor is installed on one side of the workbench, a screw rod passing through the base is rotatably installed on the inner wall of the through slot, and one end of the screw rod is transmission-connected to the output end of the servo motor.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. In the utility model, two stepper motors are used to drive the rolling wheels, which rotate accordingly according to the movement trajectory of the positioning robot arm to push the collective wire upward or downward, thereby ensuring that the collective wire between the collective rolling wheel and the claw body assembly is always close to the state of fitting the surface of the positioning robot arm, thereby effectively avoiding the interference of the arched collective wire with the welding operation of the front longitudinal beam assembly.

[0013] 2. In the utility model, the working cushion can effectively improve the accurate alignment and stability of the claw assembly for clamping the welding gun. In addition, the assembly between the working cushion and the side clamping plate is convenient and easy to use, and the fixing effect is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the installation structure of the positioning mechanical arm and the claw assembly of the utility model;

[0016] Figure 3 This is a schematic diagram of the disassembled structure of the claw assembly of the utility model;

[0017] Figure 4 It is a structural schematic diagram of the stepping motor and the rolling wheel of the utility model.

[0018] In the figure: 1. workbench; 101. through slot; 102. servo motor; 103. screw; 2. base; 3. positioning robot arm; 4. claw assembly; 401. assembly plate; 402. electric telescopic rod; 403. side clamp; 4031. elastic structure; 4032. limit block; 4033. telescopic spring; 404. workpiece cushion; 405. slot plate; 5. welding gun; 501. guide cylinder; 502. collective wire; 503. L-shaped folding plate; 504. stepping motor; 505. rolling wheel. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Embodiment 1

[0021] like Figure 1-Figure 4 As shown, the positioning manipulator for welding the front longitudinal beam assembly comprises a workbench 1, a base 2 is arranged on the top of the workbench 1, a positioning manipulator 3 is installed on the top of the base 2, a claw assembly 4 is installed at one end of the positioning manipulator 3, a welding gun 5 is clamped in the claw assembly 4, a plurality of uniformly arranged guide cylinders 501 are installed on the positioning manipulator 3, a collection wire 502 passing through the inside of the guide cylinder 501 is fixedly connected to the top of the welding gun 5, and two mirror-arranged L-shaped folding plates 503 are also installed on the positioning manipulator 3, stepper motors 504 are installed on the two L-shaped folding plates 503, and rolling wheels 505 are fixedly sleeved on the output ends of the two stepper motors 504, and the two rolling wheels 505 are respectively clamped on both sides of the collection wire 502;

[0022] By equipping the workbench 1 with a fixing mechanism, the purpose of stably fixing the front longitudinal beam assembly on the workbench 1 is achieved, and then the welding gun 5 is clamped and fixed by the claw body assembly 4, and the collective wire 502 is routed along the outside of the positioning robot arm 3 in cooperation with the guide tube 501. As the positioning robot arm 3 moves according to the set program to assist the claw body assembly 4 in driving the welding gun 5 to weld the front longitudinal beam assembly, the front end of the collective wire 502 will be subjected to tension. At this time, the stepper motor 504 electrically connected to the positioning robot arm 3 drives the rolling wheel 505 to rotate clockwise or counterclockwise downward accordingly to push the collective wire 502 upward or downward, thereby ensuring that the collective wire 502 between the collective rolling wheel 505 and the claw body assembly 4 is always close to the state of fitting the surface of the positioning robot arm 3, thereby effectively avoiding the collective wire 502 from interfering with the welding operation of the front longitudinal beam assembly.

[0023] Embodiment 2

[0024] like Figure 1-Figure 3 As shown, the claw assembly 4 includes an assembly plate 401 installed at one end of the positioning robot arm 3, two electric telescopic rods 402 are installed inside the assembly plate 401, and side clamping plates 403 are installed at the free ends of the two electric telescopic rods 402. The distance between the two side clamping plates 403 is adjusted by utilizing the telescopic operation of the two electric telescopic rods 402;

[0025] Specifically, the two side clamps 403 are attached to the opposite sides with workpiece cushions 404, and the two side clamps 404 are provided with anti-skid grooves on the opposite sides. By adding the workpiece cushions 404 with anti-skid grooves to the side clamps 403, the accurate alignment and stability of the clamped welding gun 5 can be ensured;

[0026] More specifically, a slot plate 405 is fixedly installed on opposite sides of the two workpiece cushions 404, an elastic structure 4031 is installed on one side of the side clamping plate 403, a limit block 4032 adapted to the slot plate 405 is connected to the bottom of the elastic structure 4031, a slot is opened on one side of the slot plate 405, a telescopic spring 4033 is installed inside the limit block 4032, and one end of the telescopic spring 4033 is fixedly connected to a plug-in column adapted to the slot. When the workpiece cushion 404 and the side clamping plate 403 are stably assembled, the elastic structure 4031 is squeezed upward to 31, and squeeze the telescopic spring 4033 inward, then fit the workpiece cushion 404 to the side clamping plate 403 so that the slot plate 405 passes through the side clamping plate 403, and cancel the squeezing force on the elastic structure 4031. In the process of returning to its original state, it drives the limit block 4032 to extend downward to be embedded in the slot plate 405, and at the same time releases the telescopic spring 4033. When it returns to its original state, it sends the plug-in column into the inside of the slot, so as to effectively prevent the slot plate 405 and the side clamping plate 403 from falling off. In addition, compared with the screw fixing method, disassembly and assembly are simpler and easier to use.

[0027] like Figure 1 and Figure 2 As shown, a through slot 101 is provided on the top of the workbench 1, a servo motor 102 is installed on one side of the workbench 1, a screw rod 103 passing through the base 2 is rotatably installed on the inner wall of the through slot 101, and one end of the screw rod 103 is transmission-connected to the output end of the servo motor 102. When the servo motor 102 is used to control the rotation of the screw rod 103, the base 2 can be driven to drive the positioning robot arm 3 and its related structures to move toward one side according to the set program, thereby increasing the flexibility of the overall structure and improving the welding positioning effect of the front longitudinal beam assembly.

[0028] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A positioning manipulator for welding a front longitudinal beam assembly, comprising a workbench (1), characterized in that: A base (2) is arranged on the top of the workbench (1), a positioning mechanical arm (3) is installed on the top of the base (2), and a claw assembly (4) is installed on one end of the positioning mechanical arm (3); A welding gun (5) is clamped in the claw assembly (4); a plurality of uniformly arranged guide cylinders (501) are installed on the positioning mechanical arm (3); a collective wire (502) passing through the interior of the guide cylinder (501) is fixedly connected to the top of the welding gun (5); two mirror-arranged L-shaped folding plates (503) are also installed on the positioning mechanical arm (3); stepper motors (504) are installed on both L-shaped folding plates (503); the output ends of the two stepper motors (504) are fixedly sleeved with rolling wheels (505), and the two rolling wheels (505) are respectively clamped on both sides of the collective wire (502).

2. The positioning manipulator for welding the front longitudinal beam assembly according to claim 1, characterized in that: The claw assembly (4) comprises an assembly plate (401) mounted on one end of the positioning mechanical arm (3), two electric telescopic rods (402) are mounted inside the assembly plate (401), and free ends of the two electric telescopic rods (402) are both mounted with side clamping plates (403).

3. The positioning manipulator for welding the front longitudinal beam assembly according to claim 2, characterized in that: The opposite sides of the two side clamping plates (403) are both fitted with workpiece cushions (404), and the opposite sides of the two workpiece cushions (404) are both provided with anti-slip grooves.

4. The positioning manipulator for welding the front longitudinal beam assembly according to claim 3 is characterized in that: A slot plate (405) is fixedly mounted on opposite sides of the two workpiece cushions (404), an elastic structure (4031) is mounted on one side of the side clamping plate (403), and a limit block (4032) adapted to the slot plate (405) is connected to the bottom of the elastic structure (4031).

5. The positioning manipulator for welding the front longitudinal beam assembly according to claim 4, characterized in that: A slot is provided on one side of the slot plate (405), a telescopic spring (4033) is installed inside the limit block (4032), and one end of the telescopic spring (4033) is fixedly connected to a plug-in column adapted to the slot.

6. The positioning manipulator for welding the front longitudinal beam assembly according to claim 1, characterized in that: A through slot (101) is provided on the top of the workbench (1), a servo motor (102) is installed on one side of the workbench (1), a screw rod (103) passing through the base (2) is rotatably installed on the inner wall of the through slot (101), and one end of the screw rod (103) is drivingly connected to the output end of the servo motor (102).

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