Clamp for spot welding of automobile

Abstract

The utility model relates to a clamp, in particular to a clamp for spot welding of an automobile. The clamp for spot welding of the automobile comprises a base, a workbench, a rotating disc, a servo motor, a clamp body, a guide rod and the like. A workbench is fixedly connected to the top of the base, sliding grooves are formed in the front side and the rear side of the upper portion of the workbench, a rotating disc is rotationally connected to the middle in the workbench, a servo motor is installed on the upper portion of the workbench, and an output shaft of the servo motor is fixedly connected with the rotating disc. Guide rods are symmetrically and fixedly connected to the front and rear sides of the upper portion of the workbench. The position of the spot welding machine is adjusted in the horizontal direction through the third air cylinder and the sliding sleeve, then the angle of the plate-shaped automobile part is adjusted through the servo motor and the rotating disc, and under the cooperation, the spot welding requirements of different positions of the plate-shaped automobile part are met; the problem that an existing common clamp device needs multi-angle spot welding of workers, and consequently physical output of the workers is large is effectively solved.

Description

Technical Field

[0001] The utility model relates to a clamp, in particular to a clamp for automobile spot welding. Background Art

[0002] Spot welding is a type of electric welding, which is mainly suitable for welding materials such as metal sheets and steel bars. During the spot welding process, the two pieces of metal weldments need to be clamped, and then an electric current is passed through the contact point to quickly heat it up. Under the action of electrode pressure, the two metal weldments are permanently connected. Spot welding has the characteristics of fast welding speed, power consumption but no need for filling materials or flux, gas, etc.

[0003] In the traditional spot welding process, ordinary clamping devices are generally used for clamping. Since the existing ordinary clamping devices are simple in function and can only play a fixing role, when the structure of the auto parts is complex and there are many welding parts, the operators are required to adjust the welding position, which consumes a lot of physical energy of the workers. In addition, some auto parts require complex operations to connect two parts together during the welding process. Workers not only need to clamp the two auto parts, but also need to spend time adjusting the docking position, resulting in low welding efficiency and difficult operation.

[0004] Therefore, it is necessary to design a fixture for automobile spot welding that is easy to operate. Utility Model Content

[0005] In order to overcome the disadvantage that the existing common clamp device requires workers to perform spot welding at multiple angles, which results in great physical exertion, the technical problem to be solved is: to provide a clamp for automobile spot welding.

[0006] The technical scheme of the utility model is: a fixture for automobile spot welding, comprising a base, a workbench, a controller, a turntable, a servo motor, a fixture, a guide rod, a third cylinder, a sliding sleeve, a pulley, a fourth cylinder and a spot welding machine, a workbench is fixedly connected to the base, a slide groove is provided on both front and rear sides of the upper part of the workbench, a controller is installed on the right side of the workbench, a turntable is rotatably connected to the middle part of the workbench, a servo motor is installed on the upper part of the workbench, the output shaft of the servo motor is fixedly connected to the turntable, a plurality of fixtures distributed along the circumferential direction are installed on the top of the turntable, guide rods are symmetrically fixedly connected to the front and rear sides of the upper part of the workbench, a third cylinder is installed on one side of the upper part of the workbench, a sliding sleeve is fixedly connected to the left end of the telescopic rod of the third cylinder, the sliding sleeve slides between the outsides of the two guide rods, pulleys are symmetrically rotatably connected to the front and rear sides of the sliding sleeve, the two pulleys are respectively located in the two slide grooves for sliding connection, a fourth cylinder is installed on the sliding sleeve, a spot welding machine is installed on the lower end of the telescopic rod of the fourth cylinder, and the controller is electrically connected to the servo motor, the fixture, the third cylinder, the fourth cylinder and the spot welding machine.

[0007] In one embodiment, the clamp also includes an angle seat, a first cylinder, a second cylinder, a clamping block and a fixed block. A plurality of angle seats distributed along the circumferential direction are installed on the top of the turntable, the first cylinder is installed on the angle seats, the second cylinder is installed on the telescopic rod of the first cylinder, the clamping block is fixedly connected to the telescopic rod of the second cylinder, and a fixed block is fixedly connected under the second cylinder.

[0008] In one embodiment, a handle is further included, and one side of the base is rotatably connected to the handle.

[0009] In one embodiment, a non-slip rubber sleeve is provided on the outside of the handle.

[0010] In one of the embodiments, it also includes universal wheels, and a plurality of universal wheels are symmetrically installed on the bottom of the base.

[0011] In one of the embodiments, foot pads are also included. A plurality of foot pads are symmetrically installed at the bottom of the base, and each two universal wheels are respectively located between each two foot pads.

[0012] In one embodiment, the welding needle of the spot welding machine is made of aluminum oxide copper.

[0013] The beneficial effects of the utility model are as follows: 1. The utility model adjusts the position of the spot welding machine in the horizontal direction through the third cylinder and the sliding sleeve, and then adjusts the angle of the plate-like automobile parts through the servo motor and the turntable. In this way, the spot welding needs of different positions of the plate-like automobile parts can be met, and the problem that the existing ordinary clamp device requires workers to spot weld at multiple angles, which causes great physical exertion, can be effectively solved.

[0014] 2. The utility model plays a guiding role by rotating the pulley to slide in the slide groove, thereby improving the stability of the sliding sleeve when moving. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0016] Figure 2 It is a three-dimensional cross-sectional structural schematic diagram of the base, workbench and other components of the utility model.

[0017] Figure 3 It is a three-dimensional cross-sectional structural schematic diagram of the turntable, clamp and other components of the utility model.

[0018] Figure 4 It is a three-dimensional structural schematic diagram of the handle and other components of the utility model.

[0019] Figure 5 It is a three-dimensional structural schematic diagram of the clamping block, the fixing block and other components of the utility model.

[0020] Figure numbers: 1_base, 2_workbench, 3_controller, 4_turntable, 5_servo motor, 6_clamp, 601_angle seat, 602_first cylinder, 603_second cylinder, 604_clamping block, 605_fixing block, 7_guide rod, 8_third cylinder, 9_sliding sleeve, 10_pulley, 11_fourth cylinder, 12_spot welder, 13_handle, 14_universal wheel, 15_foot pad. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0022] Embodiment: A fixture for automobile spot welding, such as Figure 1-Figure 3 As shown, it includes a base 1, a workbench 2, a controller 3, a turntable 4, a servo motor 5, a fixture 6, a guide rod 7, a third cylinder 8, a sliding sleeve 9, a pulley 10, a fourth cylinder 11 and a spot welder 12. The workbench 2 is welded on the top of the base 1. Slide grooves are provided on both the front and rear sides of the upper part of the workbench 2. The controller 3 is installed on the right front side of the workbench 2. The turntable 4 is rotatably connected to the middle part of the workbench 2. The servo motor 5 is bolted to the upper part of the workbench 2. The output shaft of the servo motor 5 is fixedly connected to the turntable 4. Four fixtures 6 distributed along the circumferential direction are bolted to the top of the turntable 4. The front and rear sides of the upper part of the workbench 2 are symmetrically welded. A guide rod 7 is connected, and a third cylinder 8 is bolted to the right side of the upper part of the workbench 2. A sliding sleeve 9 is welded to the left end of the telescopic rod of the third cylinder 8. The sliding sleeve 9 slides between the outsides of the two guide rods 7. The front and rear sides of the sliding sleeve 9 are symmetrically rotatably connected with pulleys 10. The two pulleys 10 are respectively located inside two slide grooves for sliding connection. A fourth cylinder 11 is bolted to the sliding sleeve 9. The lower end of the telescopic rod of the fourth cylinder 11 is bolted to a spot welder 12. The welding needle of the spot welder 12 is made of alumina copper. The controller 3 is electrically connected to the servo motor 5, the fixture 6, the third cylinder 8, the fourth cylinder 11 and the spot welder 12.

[0023] like Figure 5 As shown, the clamp 6 includes an angle seat 601, a first cylinder 602, a second cylinder 603, a clamping block 604 and a fixed block 605. A plurality of angle seats 601 distributed along the circumferential direction are installed on the top of the turntable 4, the first cylinder 602 is installed on the angle seat 601, the second cylinder 603 is installed on the telescopic rod of the first cylinder 602, the clamping block 604 is fixedly connected to the telescopic rod of the second cylinder 603, and a fixed block 605 is fixedly connected below the second cylinder 603.

[0024] like Figure 1 , Figure 2 and Figure 4As shown, a handle 13 is also included. The handle 13 is rotatably connected to the front side of the base 1. An anti-skid rubber sleeve is provided on the outside of the handle 13. The anti-skid rubber sleeve is made of hard and durable silicon carbide particles to enhance friction and prevent slipping.

[0025] like Figure 1 and Figure 2 As shown, it also includes a universal wheel 14. Four universal wheels 14 are symmetrically connected to the bottom of the base 1 through bolts to facilitate the movement of the equipment.

[0026] like Figure 1 and Figure 2 As shown, a foot pad 15 is also included. Two foot pads 15 are symmetrically connected to the bottom of the base 1 by bolts, and each two universal wheels 14 are respectively located between each two foot pads 15.

[0027] When it is necessary to spot weld the plate-like automobile parts, firstly, the controller 3 is used to operate the clamp 6 to clamp the plate-like automobile parts. The specific operation is as follows: first, the first cylinder 602 is started to extend the telescopic rod to fix the horizontal position of the plate-like automobile parts. Then, the plate-like automobile parts are placed between multiple clamps 6, and then the second cylinder 603 is started to extend the telescopic rod to make the clamping block 604 close to the fixed block 605, and then the vertical position of the plate-like automobile parts is fixed, thereby completing the clamping of the plate-like automobile parts. After clamping, the third cylinder 8 is started to control the telescopic rod of the third cylinder 8 to extend, so that the sliding sleeve 9 drives the fourth cylinder 11 and the spot welding machine 12 to move to the left. When moving, the pulley 10 rotates and slides in the slide groove to play a guiding role, thereby improving the stability of the sliding sleeve 9 when moving. When the spot welder 12 is moved to a suitable position and the spot welder 12 is aligned with the position where the plate-like automobile parts need to be spot welded, the third cylinder 8 is closed, and the fourth cylinder 11 and the spot welder 12 are started immediately, and the telescopic rod of the fourth cylinder 11 is controlled to extend, so that the spot welder 12 moves downward to spot weld the plate-like automobile parts. During the spot welding process, the third cylinder 8 is started intermittently according to the situation, and its telescopic rod is controlled to extend, so as to adjust the position of the spot welder 12 in the horizontal direction, and the servo motor 5 is started intermittently at the same time. The output shaft of the servo motor 5 rotates to drive the turntable 4 to rotate, so as to adjust the angle of the plate-like automobile parts. Under such cooperation, the spot welding needs of different positions of the plate-like automobile parts are met, and the problem that the existing ordinary clamp device requires workers to spot weld at multiple angles, resulting in greater physical exertion, is effectively solved.

[0028] It should be understood that this embodiment is only used to illustrate the present invention and is not used to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the claims attached to this application.

Claims

1. A fixture for automobile spot welding, characterized in that: The invention comprises a base (1), a workbench (2), a controller (3), a turntable (4), a servo motor (5), a fixture (6), a guide rod (7), a third cylinder (8), a sliding sleeve (9), a pulley (10), a fourth cylinder (11) and a spot welding machine (12). The base (1) is fixedly connected with the workbench (2). The front and rear sides of the upper part of the workbench (2) are provided with sliding grooves. The right side of the workbench (2) is installed with a controller (3). The middle part of the workbench (2) is rotatably connected with the turntable (4). The upper part of the workbench (2) is installed with a servo motor (5). The output shaft of the servo motor (5) is fixedly connected with the turntable (4). A plurality of fixtures (6) distributed along the circumferential direction are installed on the top of the turntable (4). The upper front and rear sides of the table (2) are symmetrically fixed with guide rods (7), one side of the upper part of the workbench (2) is installed with a third cylinder (8), the left end of the telescopic rod of the third cylinder (8) is fixed with a sliding sleeve (9), the sliding sleeve (9) slides between the outsides of the two guide rods (7), the front and rear sides of the sliding sleeve (9) are symmetrically rotatably connected with pulleys (10), the two pulleys (10) are respectively located in two slide grooves for sliding connection, a fourth cylinder (11) is installed on the sliding sleeve (9), the lower end of the telescopic rod of the fourth cylinder (11) is installed with a spot welder (12), and the controller (3) is electrically connected with the servo motor (5), the fixture (6), the third cylinder (8), the fourth cylinder (11) and the spot welder (12).

2. The automobile spot welding fixture according to claim 1, characterized in that: The clamp (6) also includes an angle seat (601), a first cylinder (602), a second cylinder (603), a clamping block (604) and a fixed block (605); a plurality of angle seats (601) distributed along the circumferential direction are installed on the top of the turntable (4); the first cylinder (602) is installed on each of the angle seats (601); the second cylinder (603) is installed on the telescopic rod of the first cylinder (602); the clamping block (604) is fixedly connected to the telescopic rod of the second cylinder (603); and the fixed block (605) is fixedly connected below the second cylinder (603).

3. The automobile spot welding fixture as claimed in claim 2, characterized in that: It also includes a handle (13), and one side of the base (1) is rotatably connected to the handle (13).

4. The automobile spot welding fixture as claimed in claim 3, characterized in that: The outside of the handle (13) is provided with an anti-slip rubber sleeve.

5. The automobile spot welding fixture as claimed in claim 4, characterized in that: It also includes universal wheels (14), and a plurality of universal wheels (14) are symmetrically installed on the bottom of the base (1) in the front and rear directions.

6. The automobile spot welding fixture as claimed in claim 5, characterized in that: It also includes foot pads (15). A plurality of foot pads (15) are symmetrically installed at the bottom of the base (1) in a front-to-back manner, and each two universal wheels (14) are respectively located between each two foot pads (15).

7. The automobile spot welding fixture according to claim 6, characterized in that: The welding pin of the spot welding machine (12) is made of alumina copper.

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