A welding wire hot extrusion forming device

Abstract

The utility model relates to brazing technical field, concretely relates to a kind of welding wire hot extrusion forming device;Including base assembly, screw member, compression mould component and heating component, compression mould component includes pressing block, first compression mould, second compression mould, spring and compression mould core, heating component includes heat dissipation cover plate, ceramic heating rope and base plate, the present application is designed by compression mould component, screw movement and heating component interaction, to realize the welding ring of certain diameter, height, simultaneously, by the design of compression mould component, different diameter, height of welding wire forming is suitable, reduce production investment cost, and then the U type clamping structure under prior art, principle can be optimized, add the mutual combination of pressure and temperature, realize the welding ring size of high-precision outer diameter, inner diameter and height, to adapt to different diameter, height welding structure, especially to diameter limit, height interference welding position, finally reach the effect that welding ring assembly precision is high, brazing quality is more stable.

Description

Technical Field

[0001] This utility model relates to the field of brazing technology, and in particular to a welding wire hot extrusion forming device. Background Technology

[0002] In the field of brazing, brazing filler metals with a melting point below 50°C of the base metal are required. The process involves simultaneously heating the filler metal and the base metal. When the filler metal reaches its melting point, it melts and, through capillary action, covers the weld joint of the base metal, thus achieving welding. Types of brazing filler metals mainly include: welding wire, brazing paste, brazing foil, and welding rings. Among these, welding wire has advantages in cost and performance compared to other materials, and is often used in aerospace and other industries for product manufacturing. With the development of manufacturing, product structures have become more diversified, and welding requirements have gradually increased. Besides the selection of welding wire and process parameters, the forming requirements of the welding wire are relatively high to ensure stable welding quality. In actual production, because welding wire has a certain degree of resilience, the binding process of multiple turns of wire often makes it impossible to achieve consistent fit and diameter for each turn. Using the same welding parameters will not guarantee consistent stability.

[0003] The existing welding wire forming device is a manual U-clamp, which consists of a lead screw, a pressing block, and a U-shaped frame, as detailed in the appendix. Figure 1 Its working principle is as follows: the welding wire is pre-wound to a certain diameter and then placed under the pressure block. By rotating the screw, the pressure block is moved downward, so that the pressure block applies downward pressure to the welding wire, and the fluffy welding wire is squeezed by the pressure block to form a welding ring of flat height.

[0004] However, the existing U-shaped clamp structure and working principle are prone to the following problems in the forming of welding wire: 1. The diameter of the welding ring changes to varying degrees; 2. The height of the welding ring will also rebound to a certain extent due to the elasticity of the welding wire. Therefore, it is impossible to achieve welding rings with high precision in diameter and height. It is usually suitable for welding structures with low requirements for diameter and height. Utility Model Content

[0005] The purpose of this invention is to provide a welding wire hot extrusion forming device that optimizes the existing U-shaped clamp structure and principle by adding the interaction of pressure and temperature to achieve high-precision welding ring dimensions in terms of outer diameter, inner diameter, and height. This adapts to welding structures with different diameters and heights, especially for welding parts with diameter limitations and height interference. Ultimately, it achieves high welding ring assembly accuracy and more stable brazing quality.

[0006] To achieve the above objectives, this utility model provides a welding wire hot extrusion forming device, including a base assembly, on which a lead screw component, a die component and a heating component are provided, the lead screw component is located on one side of the base assembly, and the heating component is located below the die component;

[0007] The molding component includes a pressure block, a first pressure module, a second pressure module, a spring, and a molding core. The pressure block is connected to the first pressure module, the second pressure module is disposed below the first pressure module, and the spring acts on the second pressure module and the molding core.

[0008] The heating component includes a heat dissipation cover plate, a ceramic heating rope, and a base plate. The heat dissipation cover plate and the base plate are connected by screws to fix the ceramic heating rope. The ceramic heating rope extends between the heat dissipation cover plate and the base plate and is connected to a power source.

[0009] The base assembly includes a base, a slide bar, and a support block. The base supports the substrate and the slide bar, and its T-shaped groove can be used to fix the heating component. The slide bar is used to adjust the up-and-down movement and fixation of the support block, so as to facilitate the adjustment of the relative position between the molding component and the heating component. The support block is used to limit and support the lead screw component.

[0010] The lead screw component includes a bearing sleeve, a bearing, a bearing collar, and a mating component. The bearing sleeve is connected to the pressure block. The bearing collar and the bearing sleeve are respectively fitted onto the mating component and cooperate to fix the bearing.

[0011] The mating components include a lead screw nut and a lead screw, with the lead screw nut mounted on the support block; the lead screw and the lead screw nut are engaged by a threaded transmission.

[0012] A handwheel is detachably mounted on the lead screw, and the handwheel is located at the top of the lead screw.

[0013] The handwheel is equipped with a force-applying rod, which is vertically arranged and fixed to the handwheel by bolts or welding.

[0014] The slide bar surface is provided with a wear-resistant coating with a thickness of 0.5mm.

[0015] The spring is a helical spring with a circular cross-section.

[0016] The support block and the slide rod are provided with a jacket cavity, which is used in conjunction with bolts to allow the support block to be disassembled and installed on the slide rod.

[0017] The outer diameter of the mold core corresponds to the inner diameter of the welding ring, the inner diameter of the second pressing module corresponds to the outer diameter of the welding ring, and the height of the welding ring is achieved by setting shims of corresponding height in the first pressing module and the second pressing module.

[0018] This utility model discloses a welding wire hot extrusion forming device. The welding wire to be formed is placed in a second pressing module and a pressing die core. A screw mechanism moves the pressing die core downwards until the lower end face of the second pressing module and the pressing die core contacts the surface of a heat dissipation cover. The ceramic heating rope power supply is activated beforehand. Once the surface temperature of the heat dissipation cover reaches the required temperature, it is monitored with a thermometer. The screw mechanism continues to move, and the second pressing module and the pressing die core, supported by the heat dissipation cover, move upwards. Simultaneously, the welding wire inside is also subjected to the supporting force, the pressure from the first pressing module, and the diameter restriction, forcing the welding wire to bend and deform along a certain diameter and height direction. The molding process continues until the set height is reached, completing the shape of the weld ring. This application achieves a weld ring of a certain diameter and height through the interaction of the mold component design, lead screw movement, and heating components. Simultaneously, the design of the mold component allows for the forming of welding wires of different diameters and heights, reducing production costs. Furthermore, it optimizes the existing U-shaped clamp structure and principle, adding the interaction of pressure and temperature to achieve high-precision weld ring dimensions in terms of outer diameter, inner diameter, and height. This adapts to welding structures of different diameters and heights, especially for welding areas with diameter limitations and height interference, ultimately achieving high weld ring assembly accuracy and more stable brazing quality. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0020] Figure 1 This is a schematic diagram of the structure of a welding wire forming device under existing technology.

[0021] Figure 2 This is a schematic diagram of the overall structure of the welding wire hot extrusion forming device of this utility model.

[0022] Figure 3 This is a schematic diagram of the structure of the ceramic heating rope of this utility model.

[0023] Figure 4 This is a schematic diagram of the welding wire before it is formed according to this utility model.

[0024] Figure 5 This is a schematic diagram of the welding wire after it has been formed according to this utility model.

[0025] In the diagram: 101-U-shaped frame, 102-lead screw, 103-pressing block, 201-pressing block, 202-first pressing module, 203-second pressing module, 204-spring, 205-pressing mold core, 206-heat dissipation cover plate, 207-ceramic heating rope, 208-base plate, 209-base, 210-slide rod, 211-support block, 212-bearing sleeve, 213-bearing, 214-bearing collar, 215-lead screw nut, 216-lead screw, 217-handwheel, A-welding wire, B-shield, L-height, H-outer diameter, h-inner diameter. Detailed Implementation

[0026] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0027] like Figure 2 and Figure 5 As shown, where Figure 2 This is a schematic diagram of the overall structure of the welding wire hot extrusion forming device. Figure 3 This is a structural schematic diagram of the ceramic heating rope 207. Figure 4 This is a schematic diagram of welding wire A before it is formed. Figure 5 This is a schematic diagram of welding wire A after forming. This utility model provides a welding wire hot extrusion forming device: including a base assembly, a lead screw assembly, a die assembly, and a heating assembly. The die assembly includes a pressure block 201, a first pressure module 202, a second pressure module 203, a spring 204, and a die core 205. The heating assembly includes a heat dissipation cover plate 206, a ceramic heating rope 207, and a base plate 208. The base assembly includes a base 209, a slide rod 210, and a support block 211. The lead screw assembly includes a bearing sleeve 212, a bearing 213, a bearing collar 214, and a mating component. The mating component includes a lead screw nut 215 and a lead screw 216. The aforementioned solution optimizes the existing U-clamp structure and principle by adding the interaction of pressure and temperature, thereby achieving high-precision outer diameter, inner diameter, and height of the welding ring. This adapts to welding structures with different diameters and heights, especially for welding parts with diameter limitations and height interference. Ultimately, it achieves high welding ring assembly accuracy and more stable brazing quality. It is understood that the aforementioned solution optimizes the existing U-clamp structure and principle.

[0028] In this embodiment, the base component is used for device support.

[0029] Preferably, the base assembly is provided with a lead screw component, a pressing mold component, and a heating component. The lead screw component is located on one side of the base assembly, and the heating component is located below the pressing mold component. The lead screw component is used to realize the downward movement of the pressing mold component, and the heating component is used for heating.

[0030] The pressure block 201 is connected to the first pressure module 202, and the second pressure module 203 is disposed below the first pressure module 202. The spring 204 acts on the second pressure module 203 and the pressure die core 205. The pressure block 201 is connected to the bearing sleeve 212 and the first pressure module 202 respectively, and is used to transmit force. The first pressure module 202, the second pressure module 203, and the pressure die core 205 are key structures of the pressure die component, which function to form the welding wire. Replacing this structure can achieve forming of different welding wire diameters. The spring 204 acts on the second pressure module 203 and the pressure die core 205 to increase the placement height of welding wire A, facilitating the placement and guidance of welding wire A in the early stage of forming. The pressure die component is a key component and is the main function to realize the extrusion forming of welding wire A. The design concept of the die component is as follows: Based on the required inner and outer diameters of the welding ring, the dimensions of the die core 205 and the second die module 203 are designed accordingly. The outer diameter of the die core 205 corresponds to the inner diameter of the welding ring, and the inner diameter of the second die module 203 corresponds to the outer diameter of the welding ring. The height of the welding ring is achieved by setting shims B of corresponding heights in the first die module 202 and the second die module 203. Therefore, the dimensions of the die component are designed according to the required welding ring dimensions. Considering the change in diameter deformation of the welding wire A during the extrusion process, to prevent the deformed diameter of the welding wire A from exceeding the set value, the spring 204 is added, extending the height of the second die module 203 and the die core 205. The screw 216 and screw nut 215 cooperate to rotate clockwise, causing the screw 216 to move downwards and driving the die component downwards, applying extrusion force to the welding wire A. The welding wire A will be extruded and deformed in the die component according to the set requirements, forming a welding ring of a certain diameter and height. Meanwhile, considering that the extruded welding wire A still has a certain degree of resilience, its height and diameter will change under stress release, the heating component is added under the die to extrude and form the welding wire A through high temperature heat dissipation, thereby eliminating internal stress and reducing its spring force to finally achieve a fixed welding ring size.

[0031] The heat dissipation cover 206 and the substrate 208 are connected by screws to fix the ceramic heating rope 207. The ceramic heating rope 207 extends between the heat dissipation cover 206 and the substrate 208 and is connected to a power source. The ceramic heating rope 207 extends between the heat dissipation cover 206 and the substrate 208 and, after being connected to a power source, achieves resistance heating. Heat is transferred through the heat dissipation cover 206 to the pressed welding wire A, relieving its elastic stress and facilitating the forming of the welding wire A. The heat dissipation cover 206 and the substrate 208 are connected by screws to fix the ceramic heating rope 207, and the heat dissipation cover 206 is made of a metal with good thermal conductivity to transfer heat to the welding wire A.

[0032] Preferably, the base 209 supports the substrate 208 and the slide rod 210, and its T-shaped groove can be used to fix the heating component; the slide rod 210 is used to adjust and fix the support block 211, facilitating the adjustment of the relative position between the molding component and the heating component; the support block 211 is used to limit and support the lead screw component. The T-shaped groove on the base 209 can be used to fix the heating component. The support block 211 is used to limit and support the lead screw component, facilitating the up and down movement of the lead screw 216.

[0033] Preferably, the bearing sleeve 212 is connected to the pressure block 201; the bearing ring 214 and the bearing sleeve 212 are respectively fitted onto the mating component and cooperate to fix the bearing 213.

[0034] Preferably, the lead screw nut 215 is mounted on the support block 211; the lead screw 246 and the lead screw nut 245 are threadedly coupled. The bearing collar 214 and the bearing sleeve 212 are mounted on the lead screw 216, simultaneously fixing the bearing 213. The rotation and vertical movement of the lead screw 216 drive the bearing 213 to move vertically. Due to the ball bearings of the bearing 213, the molding component connected to the bearing 213 is prevented from rotating synchronously with the lead screw 216.

[0035] Preferably, a handwheel 217 is detachably mounted on the lead screw 216, and the handwheel 217 is located on top of the lead screw 216. The handwheel 217 facilitates the rotation of the lead screw 216.

[0036] Preferably, a lever is mounted on the handwheel 217. The lever is vertically oriented and fixed to the handwheel 217 by bolts or welding. The lever is used to facilitate the rotation of the handwheel 217.

[0037] Preferably, the surface of the slide bar 210 is provided with a wear-resistant coating with a thickness of 0.5 mm. This structure helps to improve the service life of the slide bar 210.

[0038] Preferably, the spring 204 is a helical spring, and the cross-section of the spring 204 is circular.

[0039] Preferably, a jacket cavity is provided at the mating point between the support block 211 and the slide rod 210. The jacket cavity, in conjunction with a bolt, allows the support block 211 to be detached and installed on the slide rod 210. During installation, the tension bolt of the jacket cavity is first loosened, causing the jacket cavity to deform and allowing the support block 211 to slide vertically on the slide rod 210. Then, the bolt is tightened to reduce the gap in the jacket cavity, thereby securing the support block 211 tightly onto the slide rod 210. To prevent the support block 211 from rotating, a guide protrusion can be vertically provided on the surface of the slide rod 210, engaging with a guide groove within the jacket cavity.

[0040] Preferably, the outer diameter of the molding core 205 corresponds to the inner diameter of the welding ring, and the inner diameter of the second molding module 203 corresponds to the outer diameter of the welding ring. The height of the welding ring is achieved by setting shims B of corresponding heights in the first molding module 202 and the second molding module 203. This structure facilitates the setting of the corresponding dimensional parameters of the molding core 205, the second molding module 203, and the first molding module 202.

[0041] When using the welding wire hot extrusion forming device of this utility model, according to Figure 4 A schematic diagram of welding wire A before forming: The welding wire A to be formed is placed in the second pressing module 203 and the pressing die core 205. The action of the lead screw component drives the pressing die component to move downwards until the lower end face of the second pressing module 203 and the pressing die core 205 in the pressing die component contacts the surface of the heat dissipation cover plate 206. The ceramic heating rope 207 is powered on in advance. After the surface temperature of the heat dissipation cover plate 206 rises to the required temperature, it is detected by a thermometer. The lead screw component continues to move. The second pressing module 203 and the pressing die core 205 are supported by the heat dissipation cover plate 206 at their lower end faces and move upwards. At the same time, the welding wire A inside is also subjected to the supporting force and the pressure of the first pressing module 202, as well as the diameter restriction, forcing the welding wire A to bend and deform, and form along a certain diameter and height direction, until it is pressed to the set height. The shape of the welding ring is completed. See details. Figure 5A schematic diagram of the formed welding wire A shows that, under heating temperature, the weld ring is heated, eliminating internal stress and reducing its springback force. This application achieves a weld ring of a certain diameter and height through the interaction of the die component design, lead screw movement, and heating component. At the same time, by designing the die component, it is applicable to the forming of welding wires of different diameters and heights, reducing production input costs. Furthermore, it can optimize the existing U-shaped clamp structure and principle, adding the combination of pressure and temperature to achieve high-precision weld ring dimensions in terms of outer diameter, inner diameter, and height. This adapts to welding structures of different diameters and heights, especially for welding parts with diameter limitations and height interference, ultimately achieving high weld ring assembly accuracy and more stable brazing quality.

[0042] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A welding wire hot extrusion forming apparatus, comprising a base component, characterized in that: The base assembly is provided with a lead screw component, a pressing mold component and a heating component. The lead screw component is located on one side of the base assembly, and the heating component is located below the pressing mold component. The molding component includes a pressure block, a first pressure module, a second pressure module, a spring, and a molding core. The pressure block is connected to the first pressure module, the second pressure module is disposed below the first pressure module, and the spring acts on the second pressure module and the molding core. The heating component includes a heat dissipation cover plate, a ceramic heating rope, and a base plate. The heat dissipation cover plate and the base plate are connected by screws to fix the ceramic heating rope. The ceramic heating rope extends between the heat dissipation cover plate and the base plate and is connected to a power source.

2. The welding wire hot extrusion forming apparatus as described in claim 1, characterized in that: The base assembly includes a base, a slide bar, and a support block. The base supports the substrate and the slide bar, and its T-shaped groove can be used to fix the heating component. The slide bar is used to adjust the up-and-down movement and fixation of the support block, so as to facilitate the adjustment of the relative position between the molding component and the heating component. The support block is used to limit and support the lead screw component.

3. The welding wire hot extrusion forming apparatus as described in claim 2, characterized in that: The lead screw component includes a bearing sleeve, a bearing, a bearing collar, and a mating component. The bearing sleeve is connected to the pressure block. The bearing collar and the bearing sleeve are respectively fitted onto the mating component and cooperate to fix the bearing.

4. The welding wire hot extrusion forming apparatus as described in claim 3, characterized in that: The mating components include a lead screw nut and a lead screw, with the lead screw nut mounted on the support block; the lead screw and the lead screw nut are engaged by a threaded transmission.

5. The hot extrusion forming apparatus for welding wire as described in claim 4, characterized in that... : A handwheel is detachably mounted on the lead screw, and the handwheel is located at the top of the lead screw.

6. The welding wire hot extrusion forming apparatus as described in claim 5, characterized in that... A lever is installed on the handwheel. The lever is vertically positioned and fixed to the handwheel by bolts or welding.

7. The welding wire hot extrusion forming apparatus as described in claim 2, characterized in that: The slide bar surface is coated with a 0.5mm thick wear-resistant coating.

8. The welding wire hot extrusion forming apparatus as described in claim 1, characterized in that: The spring is a helical spring, and the cross-section of the spring is circular.

9. The welding wire hot extrusion forming apparatus as described in claim 7, characterized in that: A jacket cavity is provided at the junction of the support block and the slide rod. The jacket cavity is engaged with bolts to allow the support block to be disassembled and installed on the slide rod.

10. The welding wire hot extrusion forming apparatus as described in claim 1, characterized in that: The outer diameter of the pressure mold core corresponds to the inner diameter of the welding ring, the inner diameter of the second pressure module corresponds to the outer diameter of the welding ring, and the height of the welding ring is achieved by setting shims of corresponding height in the first pressure module and the second pressure module.

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