Welding fixing tool for upper cover of compressor

Abstract

The utility model relates to the technical field of welding and fixing, in particular to a welding and fixing tool for an upper cover of a compressor. A welding frame is fixed to one corner above a bottom plate, a first positioning pin is connected to one side of the welding frame, a welding support is connected to the upper portion of the welding frame and rotationally connected with a pressing arm through a rotating shaft, the top end of the pressing arm is connected with a pressing head, and a fixed support is fixed to the other corner above a pressing plate. The fixing support is vertically provided with a connecting fixing block, the fixing block is rotationally connected with a handle through a screw, one side of the handle is connected with one end of a second telescopic motor, the other end of the second telescopic motor penetrates into an overturning plate, a positioning sleeve is further embedded in the overturning plate, and a second positioning pin penetrates through the positioning sleeve and the overturning plate to be connected with the second telescopic motor. And a limiting device surrounds the center of the bottom plate circumferentially. Compared with the prior art, the fixing position of the workpiece in the welding process is accurate, vibration or displacement is reduced, manual intervention is reduced, and production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of welding and fixing technology, specifically a welding and fixing fixture for a compressor cover. Background Technology

[0002] Welding fixation technology mainly includes fixtures, positioning devices, and clamping mechanisms, used to ensure the stability of the workpiece's position and orientation during the welding process, reduce deformation, and guarantee welding accuracy. Different welding methods may require different fixation technologies. For example, laser welding requires high-precision fixtures, which need to be customized for different workpieces, resulting in high changeover costs. While welding fixation tools that integrate robotic grippers and welding achieve integrated clamping and welding, they require offline simulation and online calibration, leading to long debugging cycles. Summary of the Invention

[0003] To overcome the shortcomings of the prior art, this utility model provides a welding and fixing fixture for a compressor cover. It has a high degree of automation and achieves full automation of positioning, clamping, and flipping through multi-motor linkage control, which significantly reduces human operation errors. The limit device and the robot work together to ensure that the workpiece is firmly fixed and accurately positioned, thereby improving welding quality. The modular design can adapt to workpieces of different specifications, reduce equipment adjustment time, and improve production line flexibility.

[0004] To achieve the above objectives, a welding fixture for a compressor cover is designed, comprising a base plate, a welding frame fixed at one corner of the base plate, a positioning pin connected to one side of the welding frame, a welding support connected above the welding frame, the welding support and the pressure arm being rotatably connected via a rotating shaft, a pressure head connected to the top of the pressure arm, and the pressure head connected to the other end of the pressure arm, a fixing support fixed at another corner of the base plate, the fixing support having a vertically mounted connecting fixing block, the fixing block being rotatably connected to a handle via screws, one end of a telescopic motor connected to one side of the handle, the other end of the telescopic motor passing through a flip plate, a positioning sleeve embedded in the flip plate, the positioning pin passing through the positioning sleeve and the flip plate and connecting to the telescopic motor, and a limit device surrounding the center of the base plate.

[0005] The product to be processed is fixed at the center of the base plate.

[0006] There are three limiting devices in total. The three limiting devices are installed around the shape of the product to be processed. The limiting device includes a stop block and a support block. The stop block is fixed to the base plate by screws, and the support block is connected inside the stop block.

[0007] The pressure head includes a fixing groove and a pressing structure. The pressing structure is fixed to both sides of the pressure head through the fixing groove, and the pressing structure has a downwardly bent top foot.

[0008] A robotic arm is mounted above the product to be processed.

[0009] The positioning pin is connected to a telescopic motor on one side, and the telescopic motor is installed inside the welded frame.

[0010] One end of the pressure arm is connected to a motor.

[0011] Compared with the prior art, this utility model adopts three limiting devices surrounding the product, combined with positioning pin one and positioning pin two, to ensure that the workpiece is accurately fixed in position during the welding process, reduce vibration or displacement, and further improve welding accuracy, reduce manual intervention, and improve production efficiency when combined with the robot arm for feeding. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] Figure 2 This is a top view of the present invention.

[0014] Figure 3 This is a schematic diagram of the product fixing according to this utility model.

[0015] See Figures 1 to 3 1 is the base plate, 2 is the limiting device, 3 is the stop block, 4 is the support block, 5 is the welded frame, 6 is the pressure arm, 6.1 is the rotating shaft, 7 is the pressure head, 7.1 is the fixing groove, 7.2 is the clamping structure, 7.3 is the top foot, 8 is the positioning pin one, 9 is the positioning pin two, 10 is the welded support, 11 is the flip plate, 12 is the positioning sleeve, 13 is the fixed support, 14 is the fixing block, 15 is the handle, 16 is the motor, 17 is the telescopic motor one, 18 is the telescopic motor two, 19 is the robot arm, 20 is the screw, and 21 is the product to be processed. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] like Figure 1As shown, a welding frame 5 is fixed at one corner of the base plate 1. The base plate 1 serves as the base of the entire fixed fixture, supporting and fixing all other components to ensure the stability of the structure. A positioning pin 8 is connected to one side of the welding frame 5. A welding support 10 is connected above the welding frame 5. The welding support 10 is rotatably connected to the pressure arm 6 via a rotating shaft 6.1. The top of the pressure arm 6 is connected to the pressure head 7. A fixed support 13 is fixed at another corner of the base plate 1. The fixed support 13 is vertically provided with a connecting fixing block 14. The fixing block 14 is rotatably connected to the handle 15 via screws 20. One side of the handle 15 is connected to one end of the telescopic motor 18. The other end of the telescopic motor 18 passes through the flip plate 11. A positioning sleeve 12 is also embedded in the flip plate 11. The positioning pin 9 passes through the positioning sleeve 12 and the flip plate 11 and is connected to the telescopic motor 18. A limit device 2 is also circumferentially surrounding the center of the base plate 1. The handle 15 is connected to the telescopic motor 18 to transmit power to drive the flip plate 11 to rotate.

[0018] The product 21 to be processed is fixed in the center of the base plate 1.

[0019] There are three limiting devices 2 in total. The three limiting devices 2 are installed around the outer shape of the product 21 to be processed. The limiting device 2 includes a stop block 3 and a support block 4. The stop block 3 is fixedly connected to the base plate 1 by screws. The base plate 1 has screw holes. The support block 4 is connected inside the stop block 3. The limiting device 2 surrounds the outer perimeter of the product 21 to be processed. The specific installation position and angle of the limiting device 2 can be adjusted to restrict the movement of the workpiece and provide multi-directional positioning for the product 21 to be processed. The stop block 3 is fixed to the base plate 1 by screws. The support block 4 is embedded in the stop block 3 to provide vertical support and adapt to the fine adjustment needs of different workpiece heights.

[0020] like Figure 2 , 3 As shown, the pressure head 7 includes a fixing groove 7.1 and a pressing structure 7.2. The pressing structure 7.2 is fixed to both sides of the pressure head 7 through the fixing groove 7.1. The pressing structure 7.2 has downward bent top feet 7.3. The top feet 7.3 on both sides increase the contact area and evenly distribute the pressing force.

[0021] A robotic arm 19 is installed above the product 21 to be processed. The robotic arm 19 is located above the workpiece and is responsible for automated loading and unloading or auxiliary welding operations to reduce manual intervention.

[0022] One side of the positioning pin 18 is connected to the telescopic motor 17, which is installed inside the welding frame 5. The positioning pin 18 is driven by the telescopic motor 2, and the top of the positioning pin 18 can be inserted into the precise positioning of the product 21 to be processed.

[0023] One end of the pressure arm 6 is connected to the motor 16, which drives the pressure head 7 to extend and fix the workpiece to prevent welding vibration.

[0024] The specific implementation process of this utility model is as follows: Technicians install the limiting device 2 on the corresponding screw holes of the base plate 1 according to the product. The robot arm 19 picks up the product 21 to be processed and places it on the base plate 1. Taking a common compressor as an example, the product 21 to be processed is generally a top cover and a second cover. The robot arm 19 feeds the product separately, placing the second cover and top cover above the base plate 1 in sequence. At this time, the stops 3 and supports 4 of the three limiting devices 2 fix the workpiece from all sides to prevent displacement. The telescopic motor 17 extends to drive the positioning pin 8 to insert into the workpiece hole. The handle 15 flips down the flip plate 11, activating the telescopic motor 18. The extension arm is inserted into the workpiece hole to fix the product 21 to be processed from another angle. The motor 16 causes the pressure arm 6 to rotate and press down. The pressure head 7 presses the workpiece from above through the top foot 7.3. The welding machine receives the signal and starts automatic full-circumference welding. After welding is completed, the pressure head 7 that is pressed at the top is released, and the positioning pins 1 and 2 on the side retract. The processed product is in a free state. The robot arm 19 grabs the product and puts it into the turnover box to prepare for the next cycle. This utility model uses multi-motor coordinated control of positioning, pressing and flipping actions to reduce manual operation. The positioning pins 1 and 2 cooperate with the limiting device 2 to ensure the accuracy of welding position and angle.

Claims

1. A welding fixture for fixing a compressor cover, comprising a base plate (1), characterized in that: A welding frame (5) is fixed at one corner of the base plate (1). A positioning pin (8) is connected to one side of the welding frame (5). A welding support (10) is connected above the welding frame (5). The welding support (10) and the pressure arm (6) are rotatably connected through a rotating shaft (6.1). The top of the pressure arm (6) is connected to a pressure head (7). A fixed support (13) is fixed at the other corner of the base plate (1). A connecting fixing block (14) is vertically provided on the fixed support (13). The fixing block (14) is rotatably connected to the handle (15) through a screw (20). One end of the telescopic motor (18) is connected to one side of the handle (15). The other end of the telescopic motor (18) passes through the flip plate (11). A positioning sleeve (12) is also embedded in the flip plate (11). The positioning pin (9) passes through the positioning sleeve (12) and the flip plate (11) and is connected to the telescopic motor (18). A limiting device (2) is also circumferentially surrounding the center of the base plate (1).

2. The welding and fixing fixture for a compressor cover according to claim 1, characterized in that: The product to be processed (21) is fixed at the center of the base plate (1).

3. The welding and fixing fixture for a compressor cover according to claim 1, characterized in that: The limiting device (2) is provided in three parts. The three limiting devices (2) are installed around the outer shape of the product (21) to be processed. The limiting device (2) includes a stop block (3) and a support block (4). The stop block (3) is fixedly connected to the base plate (1) by screws, and the support block (4) is connected inside the stop block (3).

4. The welding and fixing fixture for a compressor cover according to claim 1, characterized in that: The pressure head (7) includes a fixing groove (7.1) and a pressing structure (7.2). The pressing structure (7.2) is fixed to both sides of the pressure head (7) through the fixing groove (7.1). The pressing structure (7.2) has a downwardly bent top foot (7.3).

5. The welding and fixing fixture for a compressor cover according to claim 2, characterized in that: A robotic arm (19) is provided above the product to be processed (21).

6. The welding and fixing fixture for a compressor cover according to claim 1, characterized in that: The positioning pin (8) is connected to a telescopic motor (17) on one side, and the telescopic motor (17) is installed inside the welding frame (5).

7. The welding and fixing fixture for a compressor cover according to claim 1, characterized in that: One end of the pressure arm (6) is connected to the motor (16).

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