Valve body surfacing welding device

Abstract

The utility model relates to a valve body surfacing device, which comprises a rack (1), and is characterized by further comprising a clamping mechanism (3) used for clamping a die (101) and driven by a power mechanism (2) to rotate, and a welding mechanism (4) arranged on the rack (1), the rotary ejector pin (6) directly faces the clamping mechanism (3) and is driven by the ejector pin pushing mechanism (4) to be close to the clamping mechanism (3); the central axis of the induction heating coil (9) coincides with the central connecting line of the clamping mechanism (3) and the rotary ejector pin (6), and the induction heating coil (9) is driven by the sliding block (8) to get close to the clamping mechanism (3); and the welding gun (10) is positioned above a central connecting line of the clamping mechanism (3) and the rotating ejector pin (6). According to the valve body surfacing device, efficient and high-quality surfacing operation can be carried out in an automatic mode.

Description

Technical Field

[0001] This utility model relates to a device for performing welding operations on valve bodies or magnetic shielding rings, and more particularly to a device for performing welding operations on valve bodies and magnetic shielding rings, or other workpieces, in an automated manner. Background Technology

[0002] Currently, various solenoid valves require a welding process during manufacturing. The steps typically follow a method described in Chinese patent CN201610321226.0, "A Welding Process for Valve Components": d) Preheating the rough-machined parts; e) Manually welding welding rods to the orifices and edges of the rough-machined parts, then using an argon arc welding torch and following set process parameters to weld a layer of weld overlay onto the rough-machined parts. It is evident that this welding process requires manual labor, which is not only inefficient but also results in generally poor weld quality. In mass production, inconsistencies arise due to varying operator skill levels. Summary of the Invention

[0003] The purpose of this invention is to overcome the above-mentioned shortcomings and provide a valve body overlay welding device that can perform efficient and high-quality overlay welding using an automated method.

[0004] The purpose of this utility model is achieved as follows:

[0005] A valve body overlay welding device includes components mounted on a frame:

[0006] The clamping mechanism is used to hold the mold and is driven to rotate by a power mechanism;

[0007] Rotate the ejector pin to face the clamping mechanism, and the ejector pin push mechanism will drive it to approach the clamping mechanism.

[0008] The induction heating coil has its central axis coincide with the central connection line between the clamping mechanism and the rotating pin, and is driven by the sliding block to approach the clamping mechanism;

[0009] The welding torch is located above the center connection line between the clamping mechanism and the rotating ejector pin.

[0010] Preferably, a power mechanism, a push pin mechanism, a guide block, and a sliding module are installed on the worktable of the frame. A clamping mechanism is fixedly installed on the rotating head of the power mechanism. A sliding block is slidably arranged on the sliding module. A sliding rod is slidably arranged inside the guide block. The two ends of the sliding rod are respectively connected to the rotating push pin and the push pin mechanism. An induction heating coil is connected to the sliding block, and the rotating push pin passes through the induction heating coil.

[0011] Preferably, the sliding block is powered by a cylinder, hydraulic cylinder, or electric push rod to move it horizontally on the sliding module.

[0012] Preferably, the welding torch is mounted on a multi-axis adjustment structure to achieve multi-axis adjustment.

[0013] Preferably, the multi-axis adjustment structure includes a welding torch adjustment mechanism, a horizontal movement mechanism, and a lifting mechanism. The welding torch is mounted on the welding torch adjustment mechanism to achieve Y-axis sliding. The welding torch adjustment mechanism is mounted on the horizontal movement mechanism to achieve X-axis sliding. The horizontal movement mechanism is mounted on the lifting mechanism to achieve Z-axis lifting. The lifting mechanism is vertically fixed on the frame.

[0014] Preferably, the welding torch adjustment mechanism consists of a slide table, shaft one, and shaft two: the welding torch rotates around the Y-axis via the mounting component around shaft one, and shaft one rotates around shaft two via the mounting component, thereby rotating around the X-axis; shaft two slides axially on the slide table via the mounting component to achieve axial sliding along the Y-axis.

[0015] Preferably, the welding torch adjustment mechanism is a manually adjustable slide table, and both the transverse movement mechanism and the lifting mechanism are electric slide tables.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] This invention uses an automated device to fix and weld the workpiece, thus making the entire welding process not only highly efficient but also more reliable and consistent in quality. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a valve body overlay welding device according to the present invention.

[0019] Figure 2 This is a structural schematic diagram of a valve body overlay welding device according to another perspective.

[0020] Figure 3 This utility model relates to a valve body overlay welding device. Figure 2 A magnified view of a portion of the image.

[0021] in:

[0022] Mold 101;

[0023] Workpiece 201 to be processed;

[0024] 1. Frame; 2. Power mechanism; 3. Clamping mechanism; 4. Ejector pin pushing mechanism; 5. Guide block; 6. Rotating ejector pin; 7. Sliding module; 8. Sliding block; 9. Induction heating coil; 10. Welding torch; 11. Welding torch adjustment mechanism; 12. Horizontal movement mechanism; 13. Lifting mechanism.

[0025] Sliding rod 5.1;

[0026] Slide 11.1, Shaft 11.2, Shaft 21.3. Detailed Implementation

[0027] See Figures 1-3 This utility model relates to a valve body overlay welding device, which includes a frame 1. A power mechanism 2, a pin pushing mechanism 4, a guide block 5 and a sliding module 7 are installed on the worktable of the frame 1. A clamping mechanism 3 is fixedly installed on the rotating head of the power mechanism 2. A sliding block 8 is slidably arranged on the sliding module 7. The sliding block 8 is located next to the guide block 5 and is powered by a cylinder, a hydraulic cylinder or an electric push rod to move it horizontally on the sliding module 7. A sliding rod 5.1 is slidably arranged in the guide block 5. The two ends of the sliding rod 5.1 are respectively connected to a rotating pin 6 and a pin pushing mechanism 4. An induction heating coil 9 is connected to the sliding block 8 and the rotating pin 6 passes through the induction heating coil 9.

[0028] The welding torch 10 is located directly above the guide block 5 in the sliding direction. The welding torch 10 is a dedicated welding torch for a fully automatic gas shielded welding machine, capable of automatically feeding welding wire. The welding torch 10 is mounted on the welding torch adjustment mechanism 11, which is a manually adjustable slide table. It enables sliding on the Y-axis and rotation around the X-axis. The welding torch adjustment mechanism 11 is mounted on the transverse mechanism 12 for X-axis sliding. The transverse mechanism 12 is mounted on the lifting mechanism 13 for Z-axis lifting. Both the transverse mechanism 12 and the lifting mechanism 13 are electric slide tables. Specifically, the welding torch adjustment mechanism 11 consists of a slide table 11.1, shaft one 11.2, and shaft two 11.3. The welding torch 10 rotates around shaft one 11.2 via a mounting component, and shaft one 11.2 rotates around shaft two 11.3 via a mounting component, thus achieving rotation around the X-axis. Shaft two 11.3 slides axially on the slide table 11.1 via a mounting component, achieving axial sliding along the Y-axis.

[0029] Before use, adjust the welding torch adjustment mechanism 11 to a suitable position according to the rules of the workpiece 201 to be processed, and then fix the welding torch adjustment mechanism 11. In subsequent work, only adjust the horizontal movement mechanism 12 and the lifting mechanism 13 to adjust the welding torch 10.

[0030] In use, the mold 101 is first clamped on the clamping mechanism 3, and then the workpiece 201 to be processed is inserted into the mold 101. Different specifications of mold 101 are selected according to different valve body products. Then, the ejector push mechanism 4 pushes the rotating ejector 6 to move to the right, and after pressing the end face of the workpiece 201 to be processed, the workpiece 201 to be processed is firmly pressed together with the mold 101, so that the workpiece 201 to be processed can rotate together with the mold 101.

[0031] Next, the sliding block 8 is driven to slide to the right on the sliding module 7, thereby causing the induction heating coil 9 connected to the sliding block 8 to move to the right and wrap around the workpiece 201 to be processed. The induction heating coil 9 preheats the weld overlay of the workpiece 201 to be processed. After the heating is completed, the sliding block 8 drives the induction heating coil 9 to move to the left and leave the weld overlay.

[0032] Next, the welding torch 10 is driven to move above the required weld overlay on the workpiece 201 by the transverse mechanism 12 and the lifting mechanism 13. After it is in place, the power mechanism 2 is started to drive the clamping mechanism 3 to rotate. The friction force makes the workpiece 201 rotate when the clamping mechanism 3 rotates. At the same time as it rotates, the welding torch 10 performs the weld overlay operation.

[0033] After the welding operation is completed, the welding torch 10 moves upward away from the welding area, and the rotating ejector pin 6 moves to the left away from the workpiece 201 to be processed.

[0034] Additionally, it should be noted that the above-described specific implementation is merely an optimized solution of this patent, and any modifications or improvements made by those skilled in the art based on the above concept are within the scope of protection of this patent.

Claims

1. A valve body overlaying apparatus, characterized by: Includes: The clamping mechanism (3) is used to clamp the mold (101) and is driven to rotate by the power mechanism (2); Rotate the ejector pin (6) to face the clamping mechanism (3), and drive it to approach the clamping mechanism (3) by the ejector pin pushing mechanism (4); The central axis of the induction heating coil (9) coincides with the central connection line between the clamping mechanism (3) and the rotating pin (6), and is driven by the sliding block (8) to approach the clamping mechanism (3). The welding torch (10) is located above the center connection line between the clamping mechanism (3) and the rotating ejector pin (6).

2. The valve body overlaying apparatus of claim 1 wherein: The worktable of the frame (1) is equipped with a power mechanism (2), a pin pushing mechanism (4), a guide block (5) and a sliding module (7). A clamping mechanism (3) is fixedly installed on the rotating head of the power mechanism (2). A sliding block (8) is slidably set on the sliding module (7). A sliding rod (5.1) is slidably set inside the guide block (5). The two ends of the sliding rod (5.1) are respectively connected to the rotating pin (6) and the pin pushing mechanism (4). An induction heating coil (9) is connected to the sliding block (8), and the rotating pin (6) passes through the induction heating coil (9).

3. The valve body overlaying apparatus of claim 2 wherein: The sliding block (8) is powered by a cylinder, hydraulic cylinder or electric push rod to move it on the sliding module (7).

4. The valve body overlay welding device according to claim 1, characterized in that: The welding torch (10) is mounted on a multi-axis adjustment structure to achieve multi-axis adjustment.

5. The valve body overlay welding device according to claim 4, characterized in that: The multi-axis adjustment structure includes a welding torch adjustment mechanism (11), a horizontal movement mechanism (12), and a lifting mechanism (13). The welding torch of the welding torch (10) is mounted on the welding torch adjustment mechanism (11) to achieve Y-axis sliding. The welding torch adjustment mechanism (11) is mounted on the horizontal movement mechanism (12) to achieve X-axis sliding. The horizontal movement mechanism (12) is mounted on the lifting mechanism (13) to achieve Z-axis lifting. The lifting mechanism (13) is vertically fixed on the frame (1).

6. The valve body overlay welding device according to claim 5, characterized in that: The welding torch adjustment mechanism (11) consists of a slide (11.1), shaft one (11.2) and shaft two (11.3): the welding torch (10) rotates around the Y-axis through the mounting part around shaft one (11.2), and shaft one (11.2) rotates around shaft two (11.3) through the mounting part, thereby rotating around the X-axis, and shaft two (11.3) slides on the slide (11.1) through the mounting part to achieve axial sliding of the Y-axis.

7. The valve body overlay welding device according to claim 5, characterized in that: The welding torch adjustment mechanism (11) is a manually adjustable slide table, and the horizontal movement mechanism (12) and the lifting mechanism (13) are both electric slide tables.

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