Double induction brazing water cooling tooling

Abstract

The utility model provides a kind of water-cooled tooling of double induction brazing, including hollow columnar tooling body, its upper portion detachably installs tooling head, lower portion is connected support base through fixed base, is equipped with nitrogen circulation channel, nitrogen gas is circulated to workpiece by gas inlet nitrogen main channel, gas outlet passage to prevent oxidation, chamfer is equipped at junction to reduce resistance, cooling water circulation system is also equipped, circulation cooling is formed by water inlet, annular cooling water space, water outlet, tooling head modularization is replaceable, different workpieces are adapted, water inlet, water outlet passage drilling formation is sealed with plug. The tooling is efficient, well protected, widely used and reliable, and suitable for double induction brazing.

Description

Technical Field

[0001] This utility model relates to the technical field, and more specifically, to a water-cooled fixture for dual induction brazing. Background Technology

[0002] In modern industrial production, induction brazing is an important joining process widely used in aerospace, electronics, and machinery manufacturing. Dual induction brazing technology, through the synergistic action of two induction sources, enables more precise control of welding temperature and heat distribution, thereby improving welding quality and efficiency. However, the dual induction brazing process generates a large amount of heat; if not cooled promptly, this can not only affect welding quality but also potentially damage tooling and shorten its service life.

[0003] Traditional induction brazing fixtures have several shortcomings. Some fixtures lack effective cooling systems, or their cooling systems are poorly designed and unable to quickly and evenly remove the heat generated during welding. Other fixtures, while having cooling systems, do not integrate nitrogen protection systems. Oxidation on the workpiece surface not only affects the weld strength but may also cause defects such as porosity and slag inclusions at the weld, severely reducing weld quality. Utility Model Content

[0004] Based on the above-mentioned technical problems, this utility model proposes a water-cooled fixture for dual induction brazing.

[0005] A water-cooled fixture for dual induction brazing includes: The tooling body is a hollow columnar structure extending vertically, with a detachable tooling head coaxially mounted on its upper part and a connecting part provided at its lower part. The fixed base is fixedly connected to the locking hole at the bottom of the tooling body by locking bolts, and is used to fix the tooling body on the support base; The nitrogen circulation channel includes a main nitrogen channel that runs vertically through the middle of the tooling body, a vertical outlet channel inside the tooling head, and an inlet that is horizontally arranged on the side of the tooling body. The inlet is connected to the outlet channel through the main nitrogen channel and is used to introduce nitrogen into the workpiece to be welded. The cooling water circulation system includes an annular cooling water space surrounding the outer wall of the nitrogen main channel, a water inlet and a water outlet arranged laterally on the side of the tool body, the water inlet being connected to the cooling water space through a vertical water inlet channel, and the water outlet being connected to the cooling water space through a vertical water outlet channel, forming an external cooling water circulation path. The tooling head is connected to the upper end of the tooling body through a horizontal mounting hole. The mounting hole has an internal thread, and the tooling head is locked to the upper end of the tooling body by a fixing bolt.

[0006] Furthermore, the water inlet channel and the water outlet channel are formed by drilling holes in the lower part of the tooling body. After drilling is completed, the residual holes on the lower side of the water inlet and the water outlet are sealed with plugs.

[0007] Furthermore, the plug and the machining residual hole are connected by an interference fit or a threaded connection to ensure reliable sealing.

[0008] Furthermore, the connection between the nitrogen main channel and the outlet channel is provided with a chamfered transition structure to reduce the flow resistance when nitrogen is introduced.

[0009] Furthermore, the tooling head is a replaceable modular component, and its outer contour matches the shape of the mounting interface on the upper end of the tooling body to adapt to the welding workpiece requirements of different specifications.

[0010] Beneficial effects: 1. High-efficiency cooling: The cooling water circulation system, through the design of an annular cooling water space surrounding the main nitrogen channel, can quickly and evenly remove the heat generated during the welding process, effectively control the temperature of the welding area, ensure welding quality, and extend the service life of the tooling. 2. Excellent gas protection: The nitrogen circulation channel can stably supply nitrogen to the welding area, forming an effective protective atmosphere around the workpiece, preventing workpiece oxidation, improving welding quality, and giving the welded workpiece better performance and appearance. 3. High versatility: The tooling head adopts a replaceable modular design, and its outer contour matches the shape of the installation interface on the upper end of the tooling body. It can be replaced according to different specifications of welding workpieces, which enhances the versatility of the tooling, reduces production costs, and improves production efficiency. Attached Figure Description

[0011] Figure 1 A schematic diagram of the structure of this utility model is shown. Figure 1 ; Figure 2 It shows Figure 1 Sectional view along the middle AA direction; Figure 3 A schematic diagram of the structure of this utility model is shown. Figure 2 ; Figure 4 It shows Figure 3 Sectional view along the BB direction; In the attached diagram, 1 is the tooling body, 2 is the tooling head, 3 is the fixed base, 4 is the main nitrogen channel, 5 is the cooling water space, 6 is the air inlet, 7 is the air outlet, 8 is the water inlet, 9 is the water inlet channel, 10 is the water outlet channel, 11 is the water outlet, 12 is the connecting part, 13 is the machining residual hole, 14 is the plug, 15 is the mounting and fixing hole, and 16 is the locking hole. Detailed Implementation

[0012] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0013] like Figures 1-4 The water-cooled fixture for dual induction brazing shown consists of a fixture body 1, a fixed base 3, a nitrogen circulation channel, and a cooling water circulation system.

[0014] The fixture body 1 is a hollow columnar structure extending vertically, which is the main part of the entire fixture. A detachable fixture head 2 is coaxially mounted on its upper part. The fixture head 2 can be replaced according to the welding workpiece requirements of different specifications to achieve the versatility of the fixture. The fixture head 2 is connected to the upper end of the fixture body 1 through a horizontal mounting hole 15. The mounting hole 15 has an internal thread. The fixture head 2 is locked to the upper end of the fixture body 1 by fixing bolts to ensure that the fixture head 2 is firmly installed.

[0015] The lower part of the tooling body 1 is provided with a connecting part 12 for connecting with the fixed seat 3. The fixed seat 3 is fixedly connected to the locking hole 16 at the lower part of the tooling body 1 by locking bolts. Its main function is to firmly fix the tooling body 1 on the support base, so as to ensure that the tooling will not shake during the welding process and provide stable support for the welding work.

[0016] The nitrogen circulation channel includes a main nitrogen channel 4 that runs vertically through the middle of the fixture body 1, a vertical exhaust channel 7 inside the fixture head 2, and an air inlet 6 that is horizontally arranged on the side of the fixture body 1. The air inlet 6 is connected to the exhaust channel 7 through the main nitrogen channel 4. Its function is to introduce nitrogen into the workpiece to be welded. During the welding process, nitrogen enters from the air inlet 6, passes through the main nitrogen channel 4 to the exhaust channel 7 inside the fixture head 2, and then flows out to the welding area, forming a nitrogen protective atmosphere around the workpiece, effectively preventing oxidation of the workpiece surface and improving the welding quality.

[0017] The connection between the main nitrogen channel 4 and the outlet channel 7 is provided with a chamfered transition structure to reduce the flow resistance when nitrogen enters, ensuring that nitrogen can smoothly reach the welding area.

[0018] The cooling water circulation system includes an annular cooling water space 5 surrounding the outer wall of the nitrogen main channel 4, and a water inlet 8 and a water outlet 11 arranged laterally on the side of the tool body 1. The water inlet 8 is connected to the cooling water space 5 through a vertical water inlet channel 9, and the water outlet 11 is connected to the cooling water space 5 through a vertical water outlet channel 10, forming an external cooling water circulation path. During the welding process, cooling water enters from the water inlet 8, flows into the annular cooling water space 5 through the water inlet channel 9, absorbs the heat generated in the welding area, and then flows out from the water outlet 11 through the water outlet channel 10, thereby achieving effective cooling of the welding area.

[0019] Since the inlet 8 and outlet 11 are horizontally arranged, and the inlet channel 9 and outlet channel 10 are vertically arranged, the inlet channel 9 and outlet channel 10 can only be machined by drilling holes from the bottom of the tooling body 1 during further processing. However, after drilling, there will be residual holes 13 on the lower side of the inlet 8 and outlet 11. In order to ensure that the residual holes 13 do not leak, plugs 14 are used to seal them. The plugs 14 and the residual holes 13 are connected by interference fit or thread to ensure reliable sealing, prevent cooling water leakage, and ensure the normal operation of the cooling water circulation system.

[0020] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A water-cooled fixture for dual induction brazing, characterized in that, include: Tooling body (1), the tooling body (1) is a hollow columnar structure extending vertically, with a detachable tooling head (2) coaxially mounted on its upper part and a connecting part (12) provided on its lower part. The fixed seat (3) is fixedly connected to the locking hole (16) at the bottom of the tooling body (1) by locking bolts, and is used to fix the tooling body (1) on the support base; The nitrogen circulation channel includes a nitrogen main channel (4) that runs vertically through the middle of the tooling body (1), a vertical outlet channel (7) inside the tooling head (2), and an inlet (6) that is horizontally arranged on the side of the tooling body (1). The inlet (6) is connected to the outlet channel (7) through the nitrogen main channel (4) and is used to introduce nitrogen into the workpiece to be welded. The cooling water circulation system includes an annular cooling water space (5) surrounding the outer wall of the nitrogen main channel (4), a water inlet (8) and a water outlet (11) arranged laterally on the side of the tool body (1). The water inlet (8) is connected to the cooling water space (5) through a vertical water inlet channel (9), and the water outlet (11) is connected to the cooling water space (5) through a vertical water outlet channel (10), forming an external cooling water circulation path. The tool head (2) is connected to the upper end of the tool body (1) through a horizontal mounting hole (15). The mounting hole (15) has an internal thread, and the tool head (2) is locked to the upper end of the tool body (1) by a fixing bolt.

2. The water-cooled fixture for dual induction brazing according to claim 1, characterized in that, The water inlet channel (9) and water outlet channel (10) are formed by drilling from the lower part of the tool body (1). After drilling is completed, the residual holes (13) on the lower side of the water inlet (8) and water outlet (11) are sealed by plugs (14).

3. The water-cooled fixture for dual induction brazing according to claim 2, characterized in that, The plug (14) and the machined residual hole (13) are connected by interference fit or thread.

4. The water-cooled fixture for dual induction brazing according to claim 1, characterized in that, The connection between the nitrogen main channel (4) and the gas outlet channel (7) is provided with a chamfered transition structure.

5. The water-cooled fixture for dual induction brazing according to claim 1, characterized in that, The tooling head (2) is a replaceable modular component, and its outer contour matches the shape of the mounting interface at the upper end of the tooling body (1).

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