Automatic welding and fixing tool for chassis

Abstract

The utility model discloses a kind of bottom plate automatic welding fixed tool, including rack, fixed frame, moving frame, moving device and side pressure device, fixed frame and side pressure device are fixed on rack, moving device is located on rack, moving frame is located on rack, and is connected with moving device, side pressure device is located in the side of fixed frame, moving frame is located in the other side of fixed frame, moving frame is equipped with down pressure device, down pressure device is correspondingly arranged with fixed frame. By moving device and moving frame connection, therefore, by moving device can drive moving frame to move, to drive down pressure device to move, facilitate down pressure device to be automatically pressed on workpiece, without manual operation, save labor, improve work efficiency beneficially;By the common effect of fixed frame, side pressure device and down pressure device, the corresponding structure of entire bottom plate can be fixed simultaneously, facilitate once welding fixation, greatly improve production efficiency.

Description

Technical Field

[0001] This utility model relates to an important structure for welding, and in particular to an automatic welding fixture for chassis. Background Technology

[0002] The outdoor unit casing of the air conditioner is assembled from various sheet metal parts, including the chassis. To ensure the strength of the chassis, horizontal and vertical reinforcing structures are welded and fixed to the chassis plate. Because the sides of the chassis plate have folded edges, it is prone to deformation during clamping. This makes it difficult to clamp the chassis plate securely during welding. Therefore, the horizontal and vertical structures on the chassis plate need to be placed and welded one by one before proceeding to the next, which consumes considerable time and manpower. Furthermore, each fixing operation requires manual intervention, resulting in low efficiency. Utility Model Content

[0003] The purpose of this utility model is to provide an automatic chassis welding and fixing fixture that can solve at least one of the above problems.

[0004] According to one aspect of the present invention, an automatic chassis welding fixture is provided, including a frame, a fixed frame, a movable frame, a movable device, and a side pressing device. The fixed frame and the side pressing device are both fixed on the frame. The movable device is disposed on the frame. The movable frame is disposed on the frame and connected to the movable device. The side pressing device is located on one side of the fixed frame, and the movable frame is located on the other side of the fixed frame. A pressing device is provided on the movable frame, and the pressing device is correspondingly disposed with the fixed frame.

[0005] The beneficial effects of this utility model are as follows: By connecting the moving device to the moving frame, the moving device can drive the moving frame to move, thereby driving the pressing device to move, which facilitates the pressing device to automatically press against the workpiece without manual operation, saving labor and improving work efficiency; through the combined action of the fixed frame, the side pressing device and the pressing device, the corresponding structure of the entire chassis can be fixed at the same time, which facilitates one-time welding and fixation, greatly improving production efficiency.

[0006] In some embodiments, the moving device includes a cylinder, the cylinder body of which is fixed to the frame, and the piston rod of the cylinder connected to the moving frame. Thus, the moving frame is moved by the extension and retraction of the cylinder piston rod, making operation convenient.

[0007] In some embodiments, the pressing device includes a first pressure plate, a second pressure plate, and pressing cylinders. The first pressure plate is fixed on a movable frame, and the second pressure plate is vertically disposed on the first pressure plate. Multiple pressing cylinders are provided, with two first pressure plates and two second pressure plates. Thus, the first and second pressure plates correspond to the reinforcing structures in the transverse and longitudinal directions on the base plate, and the pressing cylinders press the corresponding structures firmly onto the base plate, preventing movement during welding.

[0008] In some embodiments, the mounting frame is equipped with multiple support rods, each located below the pressing device. This allows for convenient support and fixation of the base plate within the chassis.

[0009] In some embodiments, the side-pressing device includes a side-pressing cylinder and a side-pressing plate. The cylinder body of the side-pressing cylinder is fixed to the frame, and the side-pressing plate is connected to the piston rod of the side-pressing cylinder. The side-pressing plate is located above the support rod and on one side of the pressing device. Thus, the side-pressing cylinder drives the side-pressing plate to move, and the side-pressing plate can limit the corresponding structure on the chassis, enabling rapid alignment and placement of the workpiece.

[0010] In some embodiments, one end of the first pressure plate is provided with a first slotted hole, through which the first pressure plate is connected to the movable frame. Therefore, by providing the first slotted hole, the position of the first pressure plate on the movable frame can be easily adjusted, facilitating accurate alignment with the workpiece.

[0011] In some embodiments, an automatic chassis welding and fixing fixture further includes positioning rods, with two positioning rods corresponding to the first pressure plate. The bottom end of the positioning rod is fixed to the fixing frame, and the positioning rod has a positioning hole that corresponds to the other end of the first pressure plate. Thus, by providing positioning rods, the first pressure plate is made to cooperate with the positioning hole, thereby limiting the position of the first pressure plate.

[0012] In some embodiments, the frame is equipped with a slide rail, and the bottom of the movable frame is equipped with a slider that cooperates with the slide rail. Thus, the slide rail guides the movement of the movable frame, facilitating its smooth movement.

[0013] In some embodiments, an automatic chassis welding fixture further includes limiting rods, which are mounted on a fixing frame and located on opposite sides of the fixing frame. Thus, by providing limiting rods, the sides of corresponding structures on the chassis can be limited, facilitating the positioning of the workpiece in conjunction with the limiting rods.

[0014] In some embodiments, an automatic chassis welding fixture further includes a mounting frame located on one side of a fixing frame. The mounting frame has a mounting plate, and the cylinder body of the side-pressure cylinder is fixed to the mounting plate. The mounting plate has a second slotted hole, through which it is fixed to the mounting frame. Thus, the second slotted hole facilitates the adjustment of the side-pressure cylinder's mounting position, allowing the side-pressure plate to extend accurately to the appropriate position. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the usage state structure of an automatic chassis welding and fixing fixture according to this utility model;

[0016] Figure 2 This is a structural schematic diagram of an automatic chassis welding and fixing fixture according to this utility model;

[0017] Figure 3 This is a schematic diagram of a portion of the structure of an automatic welding and fixing fixture for installing a workpiece according to this utility model.

[0018] Figure 4 This is a schematic diagram of the structure of the workpiece after welding using an automatic chassis welding fixture according to this utility model. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings.

[0020] Reference Figures 1-3 An automatic chassis welding fixture includes a frame 1, a fixed frame 2, a movable frame 3, a movable device 4, and a side pressing device 5. The fixed frame 2 and the side pressing device 5 are both fixed on the frame 1. The movable device 4 is located on the frame 1. The movable frame 3 is located on the frame 1 and connected to the movable device 4. The side pressing device 5 is located on one side of the fixed frame 2, and the movable frame 3 is located on the other side of the fixed frame 2. The movable frame 3 is provided with a pressing device 6, which is correspondingly arranged with the fixed frame 2, that is, the pressing device 6 presses downward on the workpiece placed on the fixed frame 2.

[0021] For ease of explanation, the chassis (such as...) is now described. Figure 4 The chassis (shown) is described below. It includes a base plate 20, transverse rods 30 and longitudinal rods 40. There are two transverse rods 30, which are placed on the base plate 20. There are two longitudinal rods 40, which are placed on the two transverse rods 30. The base plate 20 has downward folded edges formed around its perimeter.

[0022] The moving device 4 includes a cylinder 41, the cylinder body of which is fixed to the frame 1, and the piston rod of the cylinder 41 is connected to the moving frame 3. When the piston rod of the cylinder 41 extends, the cylinder 41 pushes the moving frame 3 away from the fixed frame 2; when the piston rod of the cylinder 41 retracts, the cylinder 41 pulls the moving frame 3 toward the fixed frame 2, so that the pressing device 6 presses against the workpiece on the fixed frame 2.

[0023] The pressing device 6 includes a first pressure plate 61, a second pressure plate 62, and pressing cylinders 63. The first pressure plate 61 is fixed on the movable frame 3, and the second pressure plate 62 is vertically mounted on the first pressure plate 61. Multiple pressing cylinders 63 are provided on both the first and second pressure plates 61 and 62. There are two first pressure plates 61 and two second pressure plates 62. The two first pressure plates 61 correspond to two longitudinal rods 40, and the two second pressure plates 62 correspond to two transverse rods 30. Therefore, when the pressing device 6 moves above the workpiece, the first pressure plate 61 is above the longitudinal rods 40, and the second pressure plate 62 is above the transverse rods 30. Subsequently, the piston rod of the pressing cylinder 63 extends downward and presses down on the transverse and longitudinal rods, pressing them firmly against the base plate to prevent movement during subsequent welding.

[0024] Multiple support rods 21 are fixed to the mounting frame 2 by screws, and each support rod 21 is located below the pressing device 6. The support rods 21 correspond to the folded edges around the base plate 20, and the support rods 21 abut against the inner sidewalls of the folded edges. Therefore, when the base plate 20 is placed on the mounting frame 2, the base plate 20 covers the top of the support rods 21, and the support rods 21 limit the movement of the base plate 20 around its perimeter, thus fixing the base plate 20 to the mounting frame 2.

[0025] The side pressure device 5 includes a side pressure cylinder 51 and a side pressure plate 52. The cylinder body of the side pressure cylinder 51 is fixed on the frame 1. The side pressure plate 52 is connected to the piston rod of the side pressure cylinder 51. The side pressure plate 52 is located above the support rod 21 and on one side of the lower pressure device 6.

[0026] The automatic welding and fixing fixture for chassis of this utility model also includes a limiting rod 9, which is disposed on the fixing frame 2 and located on opposite sides of the fixing frame 2.

[0027] When using the automatic chassis welding and fixing fixture of this utility model, the bottom plate 20 of the chassis is placed on the fixing frame 2. Then, the piston rod of the side pressure cylinder 51 extends, causing the side pressure plate 52 to move to one side of the bottom plate 20 and move above the bottom plate 20. Then, a transverse rod is placed on the bottom plate 20, with one end of the transverse rod pressed against the side pressure plate 52 to complete the placement of the transverse rod. Finally, a longitudinal rod 40 is placed, and the through holes at both ends of the longitudinal rod 40 are inserted into the limiting rods 9 on both sides to position the longitudinal rod, thus completing the placement of the chassis on the fixing frame 2.

[0028] After the chassis is placed on the fixed frame 2, the cylinder 41 pulls the movable frame 3 to one side of the fixed frame 2, causing the pressing device 6 to move above the workpiece. Once the pressing device 6 is in place, the piston rods of the pressing cylinders 63 on the first pressure plate 61 and the second pressure plate 62 move downwards, pressing the transverse and longitudinal rods firmly onto the base plate. The entire chassis is then fixed, facilitating subsequent welding processes. During welding, there is no need for manual workpiece fixing, and the pressing device 6 automatically presses against the workpiece, saving labor and improving processing efficiency.

[0029] One end of the first pressure plate 61 has a first strip-shaped hole 611. The first pressure plate 61 is connected to the movable frame 3 by a screw passing through the first strip-shaped hole 611. By providing the first strip-shaped hole 611, the distance between the two first pressure plates 61 can be adjusted, and the position of the first pressure plate 61 can be finely adjusted along the direction of the first strip-shaped hole 611 to ensure that the pressing cylinder 63 can accurately press against the workpiece.

[0030] The automatic welding and fixing fixture for chassis of this utility model also includes positioning rods 7. There are two positioning rods 7 corresponding to the first pressure plate 61. The bottom end of the positioning rod 7 is fixed to the fixing frame 2. The positioning rod 7 is provided with a positioning hole 71, which corresponds to the other end of the first pressure plate 61. Therefore, when the pressing device 6 moves into place to one side of the fixing frame, the other end of the first pressure plate 61 extends into the positioning hole 71, and the first pressure plate 61 can be limited through the positioning hole 71.

[0031] A slide rail 8 is fixed to the frame 1 by screws, and a slider (not shown in the figure) is fixed to the bottom of the movable frame 3 by screws. The slider cooperates with the slide rail 8. Therefore, through the cooperation of the slider and the slide rail 8, the slide rail 8 can play a good guiding role, which facilitates the smooth movement of the movable frame 3.

[0032] An automatic chassis welding fixture also includes a mounting frame 10, located on one side of a fixing frame 2. The mounting frame 10 has a mounting plate 101, and the cylinder body of a side-pressure cylinder 51 is fixed to the mounting plate 101. The mounting plate 101 has a second slotted hole 102, through which it is fixed to the mounting frame 10. The slotted hole 102 allows the mounting plate 101 to be adjusted along its direction, making the distance between the side-pressure cylinder 51 and the fixing frame adjustable. This allows the side-pressure plate 52 to extend and move as needed, ensuring the accuracy of the positions of various structures on the workpiece.

[0033] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. An automatic chassis welding and fixing fixture, characterized in that, The device includes a frame (1), a fixed frame (2), a movable frame (3), a movable device (4), and a side pressing device (5). The fixed frame (2) and the side pressing device (5) are both fixed on the frame (1). The movable device (4) is located on the frame (1). The movable frame (3) is located on the frame (1) and connected to the movable device (4). The side pressing device (5) is located on one side of the fixed frame (2), and the movable frame (3) is located on the other side of the fixed frame (2). The movable frame (3) is provided with a pressing device (6), which is correspondingly arranged with the fixed frame (2).

2. The automatic chassis welding and fixing fixture according to claim 1, characterized in that, The moving device (4) includes a cylinder (41), the cylinder body of which is fixed on the frame (1), and the piston rod of which is connected to the moving frame (3).

3. The automatic chassis welding and fixing fixture according to claim 2, characterized in that, The pressing device (6) includes a first pressing plate (61), a second pressing plate (62), and a pressing cylinder (63). The first pressing plate (61) is fixed on the movable frame (3), and the second pressing plate (62) is vertically arranged on the first pressing plate (61). There are multiple pressing cylinders (63). The first pressing plate (61) and the second pressing plate (62) are each provided with a pressing cylinder (63). There are two first pressing plates (61) and two second pressing plates (62).

4. The automatic chassis welding and fixing fixture according to claim 3, characterized in that, The fixing frame (2) is provided with multiple support rods (21), and each support rod (21) is located below the pressing device (6).

5. The automatic chassis welding and fixing fixture according to claim 4, characterized in that, The side pressure device (5) includes a side pressure cylinder (51) and a side pressure plate (52). The cylinder body of the side pressure cylinder (51) is fixed on the frame (1). The side pressure plate (52) is connected to the piston rod of the side pressure cylinder (51). The side pressure plate (52) is located above the support rod (21) and on one side of the pressing device (6).

6. The automatic chassis welding and fixing fixture according to any one of claims 3 to 5, characterized in that, One end of the first pressure plate (61) is provided with a first strip hole (611), and the first pressure plate (61) is connected to the movable frame (3) through the first strip hole (611).

7. The automatic chassis welding and fixing fixture according to claim 6, characterized in that, It also includes a positioning rod (7), which corresponds to two of the first pressure plate (61). The bottom end of the positioning rod (7) is fixed on the fixing frame (2). The positioning rod (7) is provided with a positioning hole (71), which corresponds to the other end of the first pressure plate (61).

8. The automatic chassis welding and fixing fixture according to claim 1, characterized in that, The frame (1) is provided with a slide rail (8), and the bottom of the movable frame (3) is provided with a slider, which cooperates with the slide rail (8).

9. The automatic chassis welding and fixing fixture according to any one of claims 1 to 5, characterized in that, It also includes a limiting rod (9), which is mounted on the fixed frame (2) and located on opposite sides of the fixed frame (2).

10. The automatic chassis welding and fixing fixture according to claim 5, characterized in that, It also includes a mounting bracket (10), which is located on one side of the fixed bracket (2). The mounting bracket (10) is provided with a mounting plate (101), and the cylinder body of the side pressure cylinder (51) is fixed on the mounting plate (101). The mounting plate (101) is provided with a second strip hole (102), and the mounting plate (101) is fixed to the mounting bracket (10) through the second strip hole (102).

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