Auxiliary device for spot welding of automobile parts

Abstract

The utility model relates to the technical field of automobile part machining, in particular to an automobile part spot welding auxiliary device which comprises a workbench, a bidirectional lead screw, a first fixing block, a first fixing frame, a servo motor and the like. Two bidirectional lead screws are rotatably connected to the bottom of the workbench, two first fixing blocks are slidably connected to the front side and the rear side of the top of the workbench, first fixing frames are connected between the front first fixing block and the rear first fixing block, the first fixing blocks are in threaded connection with the bidirectional lead screws, and a servo motor is installed on the workbench. According to the auxiliary device, the connecting base, the second fixing block, the volute spiral spring, the rubber block and the connecting rod are arranged, under the elastic action of the volute spiral spring, the second fixing block can press the automobile part, the rubber block can increase the friction force between the automobile part and the second fixing block, and the stability of the auxiliary device is further improved; and an air cylinder and a lower pressing plate are further arranged, so that the second fixing block can automatically press and loosen the automobile parts.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts processing technology, and more specifically, to an auxiliary device for spot welding of automotive parts. Background Technology

[0002] Automotive components refer to all the independent, detachable parts that make up a car. Each component performs a specific function and works together to ensure the normal operation of the vehicle. From the precision pistons inside the engine to the prominent headlights on the outside, all fall under the category of automotive components. The quality and performance of these parts directly affect the safety, reliability, and comfort of the entire vehicle.

[0003] Spot welding is a very common joining method in the production of automotive parts, especially suitable for body manufacturing. Spot welding involves applying pressure and electricity through electrodes, causing the current to pass through the metal contact surfaces and generate resistance heat, melting the metal to form a weld point, thus firmly joining two or more metal surfaces together. The use of fixtures is indispensable for achieving precise and efficient spot welding operations.

[0004] As disclosed in patent publication number CN216138386U, a leak-proof structure for a spot welding fixture for automotive parts includes a worktable. An adjustment mechanism is provided on the top outer wall of the worktable, and clamping plates are mounted on the adjustment mechanism. The clamping plates are symmetrically distributed, and each clamping plate has symmetrically distributed mounting grooves inside. A fixing block is installed inside each mounting groove, and a connecting rod is fixedly connected to one side of the fixing block's outer wall. The connecting rod extends to the outside of the clamping plate, and a contact plate is fixedly connected to one end of the connecting rod. A spring is sleeved on the outer wall of the connecting rod, and both ends of the spring are fixedly connected to the clamping plate and the contact plate, respectively. In this patent, the clamping force of the two contact plates may be different, which can easily lead to the inability to properly clamp the automotive parts. During spot welding, the automotive parts are prone to displacement, resulting in low spot welding efficiency. Utility Model Content

[0005] In order to overcome the shortcomings of the above-mentioned patents in that automotive parts are prone to displacement during spot welding, the purpose of this utility model is to provide an auxiliary device for spot welding of automotive parts.

[0006] An auxiliary device for spot welding of automotive parts includes a worktable, a bidirectional lead screw, a first fixed block, a first fixed frame, a servo motor, a transmission assembly, a second fixed frame, and a connecting spring. Two bidirectional lead screws are rotatably connected to the bottom of the worktable. Two first fixed blocks are slidably connected to the front and rear sides of the top of the worktable. A first fixed frame is connected between the front and rear first fixed blocks. The first fixed blocks are threadedly connected to the bidirectional lead screws. A servo motor is mounted on the worktable. The output shaft of the servo motor is connected to a bidirectional lead screw on one side. A transmission assembly is connected between the front and rear bidirectional lead screws. At least one second fixed frame is slidably connected to the side of the left and right first fixed frames that are close to each other. A connecting spring is connected between the second fixed frame and the first fixed frame.

[0007] Optionally, it also includes indicator lights and buttons, with two indicator lights and two buttons installed on the first mounting bracket, and the buttons being electrically connected to the indicator lights.

[0008] Optionally, it also includes a first rubber pad, and the second fixing frame and the first fixing frame on the other side are both connected to the first rubber pad.

[0009] Optionally, it also includes a connecting seat, a second fixing block, a spiral spring, a rubber block, and a connecting rod. At least two connecting seats are connected to the first fixing frame. A second fixing block is rotatably connected to each connecting seat. A spiral spring is connected inside each connecting seat. The other end of each spiral spring is connected to the second fixing block. A rubber block is connected to the end of each second fixing block away from the connecting seat. A connecting rod is connected between the front and rear second fixing blocks.

[0010] Optionally, it also includes a cylinder and a lower pressure plate. A cylinder is connected to each of the first fixed frames, and a lower pressure plate is connected to the piston rod of each cylinder. The lower pressure plate is in contact with the connecting rod.

[0011] Optionally, it also includes a second rubber pad, which is connected to the worktable.

[0012] The present invention has the following advantages: The present invention is provided with a connecting seat, a second fixing block, a spiral spring, a rubber block and a connecting rod. Under the elastic force of the spiral spring, the second fixing block can press the car parts. The rubber block can increase the friction between the car parts and the second fixing block, further improving the stability of the auxiliary device. It is also provided with a cylinder and a lower pressure plate, which can realize the automatic pressing and releasing of the car parts by the second fixing block. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0014] Figure 2 This is a cross-sectional view of the workbench of this utility model.

[0015] Figure 3This is a schematic diagram of the bidirectional lead screw, the first fixing frame, and the transmission assembly of this utility model.

[0016] Figure 4 This is a cross-sectional schematic diagram of the first fixing frame of this utility model.

[0017] Figure 5 This is a cross-sectional schematic diagram of the connector of this utility model.

[0018] In the above attached diagram: 1-Workbench, 2-Double lead screw, 3-First fixing block, 4-First fixing frame, 5-Servo motor, 6-Transmission assembly, 7-Second fixing frame, 8-Connecting spring, 9-Indicator light, 10-Button, 11-First rubber pad, 12-Connecting seat, 13-Second fixing block, 14-Roll spring, 15-Rubber block, 151-Connecting rod, 16-Cylinder, 17-Lower pressure plate, 18-Second rubber pad. Detailed Implementation

[0019] References to embodiments herein mean that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the present invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0020] An auxiliary device for spot welding of automotive parts, such as Figures 1-5 As shown, the assembly includes a worktable 1, a bidirectional lead screw 2, a first fixed block 3, a first fixed frame 4, a servo motor 5, a transmission assembly 6, a second fixed frame 7, a connecting spring 8, an indicator light 9, a button 10, a first rubber pad 11, and a second rubber pad 18. The bidirectional lead screw 2 is rotatably connected to both the front and rear sides of the bottom of the worktable 1. Two first fixed blocks 3 are slidably connected to both the front and rear sides of the top of the worktable 1. A first fixed frame 4 is fixedly connected between the front and rear first fixed blocks 3. All first fixed blocks 3 are threadedly connected to the bidirectional lead screw 2. A servo motor 5 is mounted on the left side of the worktable 1. The output shaft of the servo motor 5... The front bidirectional lead screw 2 is fixedly connected to the front bidirectional lead screw 2. A transmission component 6 is connected between the front and rear bidirectional lead screws 2. Two second fixed frames 7 are slidably connected to the side of the left and right first fixed frames 4 that are close to each other. A connecting spring 8 is fixedly connected between the second fixed frame 7 and the first fixed frame 4. The connecting spring 8 is a helical spring. Two indicator lights 9 and two buttons 10 are installed on the top of the first fixed frame 4. The buttons 10 are electrically connected to the indicator lights 9. A first rubber pad 11 is fixedly connected to the right side of the second fixed frame 7 and the left side of the right first fixed frame 4. A second rubber pad 18 is fixedly connected to the top of the worktable 1.

[0021] When spot welding automotive parts, the automotive parts are placed on the second rubber pad 18. The second rubber pad 18 increases the friction between the automotive parts and the worktable 1, improving the stability of the automotive parts. The servo motor 5 drives the front double-sided lead screw 2 to rotate. Under the action of the transmission component 6, the rear double-sided lead screw 2 rotates simultaneously, causing the front and rear first fixing blocks 3 to slide closer to each other along the worktable 1. The second fixing frame 7 and the right first fixing frame 4 press against the automotive parts, causing the connecting spring 8 to be compressed. The second fixing frame 7 slides away from the right first fixing frame 4. When the button 10 is pressed on the second fixing frame 7, the indicator light 9 changes from off to constantly lit. At this time, the automotive parts are fixed in place, and then spot welding is performed on the automotive parts. When the indicator light 9 is not lit, it indicates that the second fixing frame 7 and the right first fixing frame 4 are not in good contact with the automotive parts. By observing the opening and closing of the indicator light 9, it can be determined whether the second fixing frame 7 and the right first fixing frame 4 are properly clamping the automotive parts.

[0022] like Figures 1-5 As shown, it also includes a connecting seat 12, a second fixing block 13, a spiral spring 14, a rubber block 15, a connecting rod 151, a cylinder 16, and a lower pressure plate 17. The top of the first fixing frame 4 is fixedly connected to two connecting seats 12, and the top of the connecting seat 12 is rotatably connected to the second fixing block 13. The spiral spring 14 is fixedly connected inside the connecting seat 12, and the other end of the spiral spring 14 is fixedly connected to the second fixing block 13. The end of the second fixing block 13 away from the connecting seat 12 is fixedly connected to the rubber block 15. The connecting rod 151 is fixedly connected between the front and rear second fixing blocks 13. The top of the first fixing frame 4 is fixedly connected to the cylinder 16, and the piston rod of the cylinder 16 is fixedly connected to the lower pressure plate 17. The lower pressure plate 17 is in contact with the connecting rod 151.

[0023] Initially, the spiral spring 14 is in a compressed state. The cylinder 16 drives the lower pressure plate 17 to move upward away from the worktable 1, and the spiral spring 14 returns to its original state. This causes the front and rear second fixing blocks 13 to rotate and approach the car parts. The rubber block 15 contacts the car parts. Under the elastic force of the spiral spring 14, the second fixing blocks 13 can press the car parts. The rubber block 15 can increase the friction between the car parts and the second fixing blocks 13, further improving the stability of this auxiliary device. After the spot welding is completed, the cylinder 16 drives the lower pressure plate 17 to move downward and squeeze the connecting rod 151, causing the front and rear second fixing blocks 13 to rotate and reset. The spiral spring 14 is compressed, and then the spot-welded car parts can be taken out. The operation is simple and convenient.

[0024] It should be understood that this embodiment is for illustrative purposes only and is not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the invention, and these equivalent forms also fall within the scope defined by the appended claims.

Claims

1. An auxiliary device for spot welding of automotive parts, comprising a worktable (1), characterized in that, It also includes a bidirectional lead screw (2), a first fixed block (3), a first fixed frame (4), a servo motor (5), a transmission assembly (6), a second fixed frame (7), and a connecting spring (8). The bottom of the worktable (1) is rotatably connected to two bidirectional lead screws (2). The top of the worktable (1) is slidably connected to two first fixed blocks (3) on both the front and rear sides. A first fixed frame (4) is connected between the front and rear first fixed blocks (3). The first fixed blocks (3) are threadedly connected to the bidirectional lead screws (2). A servo motor (5) is installed on the worktable (1). The output shaft of the servo motor (5) is connected to one side of the bidirectional lead screw (2). A transmission assembly (6) is connected between the front and rear bidirectional lead screws (2). At least one second fixed frame (7) is slidably connected to the side of the left and right first fixed frames (4) that are close to each other. A connecting spring (8) is connected between the second fixed frame (7) and the first fixed frame (4).

2. The auxiliary device for spot welding of automotive parts according to claim 1, characterized in that, It also includes indicator lights (9) and buttons (10). Two indicator lights (9) and two buttons (10) are installed on the first mounting bracket (4). The buttons (10) are electrically connected to the indicator lights (9).

3. The auxiliary device for spot welding of automotive parts according to claim 2, characterized in that, It also includes a first rubber pad (11), and the first rubber pad (11) is connected to the second fixing frame (7) and the first fixing frame (4) on the other side.

4. The auxiliary device for spot welding of automotive parts according to claim 3, characterized in that, It also includes a connecting seat (12), a second fixing block (13), a spiral spring (14), a rubber block (15) and a connecting rod (151). At least two connecting seats (12) are connected to the first fixing frame (4). The second fixing block (13) is rotatably connected to the connecting seat (12). The spiral spring (14) is connected inside the connecting seat (12). The other end of the spiral spring (14) is connected to the second fixing block (13). The end of the second fixing block (13) away from the connecting seat (12) is connected to the rubber block (15). The connecting rod (151) is connected between the front and rear second fixing blocks (13).

5. The auxiliary device for spot welding of automotive parts according to claim 4, characterized in that, It also includes a cylinder (16) and a lower pressure plate (17). The first fixed frame (4) is connected to a cylinder (16), and the piston rod of the cylinder (16) is connected to a lower pressure plate (17). The lower pressure plate (17) is in contact with the connecting rod (151).

6. The auxiliary device for spot welding of automotive parts according to claim 5, characterized in that, It also includes a second rubber pad (18), which is connected to the worktable (1).

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