Welding tool for welding mold core assembly

Abstract

The utility model discloses a welding tool for welding a mold core component, which comprises a fixed base, an air cylinder fixing plate is fixed on the outer side of the fixed base, reinforcing ribs are fixed on the air cylinder fixing plate and the fixed base, an air cylinder base plate is mounted at the upper end of the air cylinder fixing plate, an air cylinder body is mounted on the outer side of the air cylinder base plate, and a welding rod is mounted on the air cylinder body. An air inlet adjusting valve is connected to the air cylinder body, the output end of the air cylinder body is connected with a mounting seat, a gasket and a bearing are mounted on the lower side of the mounting seat, and a positioning rod is connected to the inner side of the gasket and the inner side of the bearing. And the fixed base is mounted on a welding platform. The welding tool for welding the mold core assembly is installed on a welding platform of a precise laser welding machine, an air cylinder with a guiding function is used for conducting up-and-down pressing work, a positioning rod is precisely positioned through double bearings, the pressing and coaxial precise positioning effects are achieved, it is guaranteed that in the welding process, coaxial precise positioning is achieved, deviation is avoided, and the consistency of the welding assembly is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of mold core assembly welding, in particular to a welding tool for welding mold core assemblies. Background Art

[0002] The core assembly is a precision part used for key operations in the center of the mold. The core assembly includes the nozzle assembly. When welding the nozzle assembly, a precision laser welding machine equipped with welding tooling is used for welding operations.

[0003] However, the existing welding fixtures for welding core assemblies still have the following technical problems: (1) The existing rocker-type clamping device has low precision, the press-fitting is not stable enough, and it often deviates and cannot be pressed, resulting in the need for multiple press-fitting operations before normal use; (2) The press-fitting is not coaxial enough. This clamping device only plays a clamping role and has very poor coaxiality.

[0004] Therefore, we proposed a welding tool for welding mold core components to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of the present utility model is to provide a welding tool for welding mold core components to solve the problems raised in the above-mentioned background technology, that is, the rocker-type clamping device on the current market has low precision, the press-fitting is not stable enough, it often deviates and cannot be press-fitted, resulting in multiple press-fitting operations required for normal use, and the press-fitting is not coaxial enough. This clamping device only plays a clamping role and has very poor coaxiality.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a welding fixture for welding a mold core assembly, comprising a fixed base, a cylinder fixing plate fixed to the outer side of the fixed base, reinforcing ribs fixed to the cylinder fixing plate and the fixed base, a cylinder backing plate installed on the upper end of the cylinder fixing plate, a cylinder body installed on the outer side of the cylinder backing plate, an air intake regulating valve connected to the cylinder body, a mounting seat connected to the output end of the cylinder body, a gasket and a bearing installed on the lower side of the mounting seat, and a positioning rod connected to the inner side of the gasket and the bearing;

[0007] The fixed base is installed on the welding platform, a welding head is provided on the welding platform, a motor is installed inside the fixed base, the output end of the motor is connected to the calibration seat, a nozzle assembly is placed inside the calibration seat, and an adjustment assembly for calibrating the position of the nozzle assembly is provided on the calibration seat.

[0008] Preferably, the adjustment assembly includes a spring connected to the lower end of the calibration seat, the upper end of the spring is connected to an outer cover, and a calibration rod passes through the side wall of the calibration seat.

[0009] Preferably, the fixed base and the cylinder fixing plate are installed perpendicular to each other, and the fixed base and the cylinder fixing plate are reinforced and supported by reinforcing ribs.

[0010] Preferably, the positioning rod forms a rotating structure with the mounting seat through a bearing, and two bearings are provided.

[0011] Preferably, the upper section of the outer cover is an inclined structure, and the outer cover can slide on the outside of the calibration seat.

[0012] Preferably, the calibration rods are distributed on the calibration seat at equal angles, the calibration rods are slidably connected to the calibration seat, and the ends of the calibration rods are smooth arc-shaped.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] (1) The welding fixture of the welding mold core assembly is installed on the welding platform of the precision laser welding machine. The guided cylinder is used to perform the up and down pressing work. The positioning rod adopts double bearings for precise positioning, which plays the role of pressing and coaxial precise positioning, ensuring the precise positioning of the coaxiality during the welding process, without deviation, and ensuring the consistency of the welded assembly;

[0015] (2) The welding tooling of the welding mold core assembly does not require manual operation and can be started with one button in conjunction with the host computer, thus realizing intelligence, reducing labor intensity, and improving qualification rate and work efficiency;

[0016] (3) The welding fixture of the welding core assembly utilizes the movement of the outer cover to synchronously drive the movement of the calibration rod, so that the nozzle assembly in the core assembly is calibrated in the center position of the calibration seat, so that the nozzle assembly can be smoothly pressed when the positioning rod moves down, and the positioning rod can be rotated on the mounting seat. By driving the calibration seat to rotate, the rotation of the nozzle assembly pressed between the positioning rod and the calibration seat can be smoothly controlled to be fully welded. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the main structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the three-dimensional structure of the cylinder gasket of the utility model;

[0020] Figure 4 This is a schematic diagram of the main structure of the cylinder gasket of the utility model;

[0021] Figure 5 This is a side view structural diagram of the fixed base of the utility model;

[0022] Figure 6 This is a schematic diagram of the top view of the cylinder gasket of the utility model;

[0023] Figure 7 This is a schematic diagram of the explosion structure of the utility model;

[0024] Figure 8 This is a schematic diagram of the cross-sectional structure of the welding platform of the utility model;

[0025] Figure 9 This is a schematic diagram of the calibration rod structure of the utility model;

[0026] Figure 10 This is a schematic diagram of the cross-sectional structure of the calibration seat of the present utility model.

[0027] In the figure: 1. Fixed base; 2. Reinforcement ribs; 3. Cylinder fixing plate; 4. Cylinder gasket; 5. Cylinder body; 6. Inlet regulating valve; 7. Mounting seat; 8. Gasket; 9. Bearing; 10. Positioning rod; 11. Welding head; 12. Nozzle assembly; 13. Calibration seat; 14. Welding platform; 15. Motor; 16. Spring; 17. Outer cover; 18. Calibration rod. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] See also Figures 1-10 The utility model provides the following technical solution: a welding fixture for welding a core assembly, comprising a fixed base 1, a cylinder fixing plate 3 fixed to the outer side of the fixed base 1, a reinforcing rib 2 fixed to the cylinder fixing plate 3 and the fixed base 1, a cylinder backing plate 4 installed on the upper end of the cylinder fixing plate 3, a cylinder body 5 installed on the outer side of the cylinder backing plate 4, an air intake regulating valve 6 connected to the cylinder body 5, an output end of the cylinder body 5 connected to a mounting seat 7, a gasket 8 and a bearing 9 installed on the lower side of the mounting seat 7, and a positioning rod 10 connected to the inner side of the gasket 8 and the bearing 9;

[0030] Furthermore, the fixed base 1 and the cylinder fixing plate 3 are installed perpendicular to each other, and the fixed base 1 and the cylinder fixing plate 3 are reinforced by the reinforcing ribs 2 to improve the firmness of the welding tooling; the positioning rod 10 forms a rotating structure with the mounting seat 7 through the bearing 9, and two bearings 9 are provided. The positioning rod 10 is precisely positioned by the double bearings 9, which plays the role of compression and coaxial precise positioning;

[0031] Specifically, the nozzle assembly 12 in the core assembly is placed in the calibration seat 13, and then the cylinder body 5 is opened to push the mounting seat 7 downward, thereby controlling the positioning rod 10 to move downward. The positioning rod 10 can press the nozzle assembly 12 tightly, and when welding it with the welding head 11, it can ensure the stability of the welding;

[0032] The fixed base 1 is mounted on a welding platform 14, on which a welding head 11 is mounted. A motor 15 is mounted inside the fixed base 1, and the output end of the motor 15 is connected to a calibration base 13. A nozzle assembly 12 is placed inside the calibration base 13, and an adjustment assembly for calibrating the position of the nozzle assembly 12 is mounted on the calibration base 13.

[0033] Furthermore, the adjustment assembly includes a spring 16 connected to the lower end of the calibration seat 13, the upper end of the spring 16 is connected to an outer cover 17, and a calibration rod 18 passes through the side wall of the calibration seat 13;

[0034] Furthermore, the upper section of the outer cover 17 is an inclined structure, and the outer cover 17 can slide on the outside of the calibration seat 13, and the position of the outer cover 17 can be flexibly adjusted. The outer cover 17 is used to synchronously drive the calibration rods 18 with equal angles to move, so as to calibrate the position of the nozzle assembly 12; the calibration rods 18 are distributed at equal angles on the calibration seat 13, and the calibration rods 18 are slidably connected to the calibration seat 13. The ends of the calibration rods 18 are smooth arc-shaped, which can reduce the moving friction between the calibration rods 18 and the outer cover 17, and the nozzle assembly 12 is calibrated in the center position of the calibration seat 13 using the calibration rods 18 with equal angles.

[0035] Specifically, when placing the nozzle assembly 12, the outer cover 17 can be pressed downward first, so that the outer cover 17 presses and accumulates force on the spring 16, and the outer cover 17 releases the push of the calibration rod 18. At this time, the nozzle assembly 12 can be smoothly inserted into the calibration seat 13, and the pressure on the outer cover 17 is released. The spring 16 can control the outer cover 17 to reset and move, so that the outer cover 17 pushes the calibration rod 18, so that the calibration rod 18 pushes and calibrates the lower end of the nozzle assembly 12, so that the nozzle assembly 12 and the positioning rod 10 are aligned and distributed, ensuring the clamping accuracy of the positioning rod 10 on the nozzle assembly 12. The motor 15 is powered on, and the calibration seat 13 connected to the output end can be controlled to rotate, and the upper end of the positioning rod 10 can be rotated on the mounting seat 7 through the bearing 9, so the clamped nozzle assembly 12 can be smoothly driven to rotate and fully welded. The content not described in detail in this manual belongs to the existing technology known to professional and technical personnel in this field.

[0036] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A welding fixture for welding a core assembly, comprising a fixed base (1), characterized in that: A cylinder fixing plate (3) is fixed to the outer side of the fixed base (1), a reinforcing rib (2) is fixed to the cylinder fixing plate (3) and the fixed base (1), a cylinder pad (4) is installed on the upper end of the cylinder fixing plate (3), a cylinder body (5) is installed on the outer side of the cylinder pad (4), an air intake regulating valve (6) is connected to the cylinder body (5), an output end of the cylinder body (5) is connected to a mounting seat (7), a gasket (8) and a bearing (9) are installed on the lower side of the mounting seat (7), and a positioning rod (10) is connected to the inner side of the gasket (8) and the bearing (9); The fixed base (1) is mounted on a welding platform (14), a welding head (11) is provided on the welding platform (14), a motor (15) is installed inside the fixed base (1), an output end of the motor (15) is connected to a calibration base (13), a nozzle assembly (12) is placed inside the calibration base (13), and an adjustment assembly for calibrating the position of the nozzle assembly (12) is provided on the calibration base (13).

2. The welding tool for welding mold core assembly according to claim 1, characterized in that: The adjustment assembly comprises a spring (16) connected to the lower end of the calibration seat (13), the upper end of the spring (16) is connected to an outer cover (17), and a calibration rod (18) passes through the side wall of the calibration seat (13).

3. The welding tool for welding mold core assembly according to claim 1, characterized in that: The fixed base (1) and the cylinder fixing plate (3) are installed perpendicular to each other, and the fixed base (1) and the cylinder fixing plate (3) are reinforced and supported by reinforcing ribs (2).

4. The welding tool for welding mold core assembly according to claim 1, characterized in that: The positioning rod (10) forms a rotating structure with the mounting seat (7) through a bearing (9), and two bearings (9) are provided.

5. The welding tool for welding mold core assembly according to claim 2, characterized in that: The upper section of the outer cover (17) is an inclined structure, and the outer cover (17) can slide on the outer side of the calibration seat (13).

6. The welding tool for welding the core mold assembly according to claim 2, characterized in that: The calibration rods (18) are distributed on the calibration seat (13) at equal angles. The calibration rods (18) are slidably connected to the calibration seat (13). The ends of the calibration rods (18) are in a smooth arc shape.

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