Welding positioning and clamping device for bond strap brazing

Abstract

The utility model provides a welding positioning and clamping device for bond strap brazing, and the device comprises a hook which is used for placing a bond strap and is provided with a plane part; the positioning plate is arranged on the plane part, and the positioning plate is used for positioning the bond strap; the pressing plate is arranged on the positioning plate, the pressing plate is used for pressing the positioning plate on the plane part, and an area for containing the bond strap can be further formed between the pressing plate and the plane part; according to the auxiliary welding device, the welding quality is stable and reliable, compared with traditional free type pure manual welding, through the auxiliary welding device, welding brazing filler metal is well prevented from flowing and permeating freely, one-time welding forming is in place, the polishing and reworking procedures after welding are avoided, use is convenient and fast, the production and machining efficiency is improved, and the welding seam quality stability is remarkably improved.

Description

Technical Field

[0001] The present application belongs to the technical field of manufacturing bonding wires for aircraft, and in particular relates to a welding positioning clamping device for brazing bonding wires. Background Art

[0002] In the research and production of aircraft, a soldering wire product is used. This product features a small component, a braided sleeve, and two HB6-38 connectors crimped onto each end. The sleeve and connectors are then joined by soldering. Soldering is a method of metallurgically joining metals using a filler metal (brass) with a melting point (or liquidus temperature) below 450°C, heated to a temperature below the melting point of the metal being joined (the parent metal). This method offers advantages such as minimal impact on the parent metal, high production efficiency, minimal stress and deformation, and excellent accessibility.

[0003] Its output is very large, and the demand for single-frame machine bonding wires is more than a thousand pieces. Its product size is small, and generally adopts free-state manual welding without the cooperation of auxiliary tooling and fixtures. The welding solder flows and penetrates freely, and precise control of the solder in the molten state cannot be achieved. Multiple grinding and rework are required after welding, and the welding quality stability is poor, which in turn affects the product production and processing efficiency.

[0004] The commonly used fixture structure is compact, inconvenient for operators to use, and it is impossible to set a clamping device, making it difficult to leave enough space for welding, and it is impossible to control the flow of molten tin, affecting product delivery. Utility Model Content

[0005] The purpose of this application is to provide a welding positioning clamping device for bonding wire brazing to assist bonding wire welding and solve the problems of free flow and penetration of brazing material and unstable welding quality in pure free state pure manual welding.

[0006] The present application provides a welding positioning clamping device for soldering a bonding wire, the device comprising:

[0007] A hook, used for placing a grounding wire, wherein the hook has a flat portion;

[0008] A positioning plate is provided on the plane portion, and is used to position the grounding wire;

[0009] A pressing plate is provided on the positioning plate, and is used to press the positioning plate tightly against the plane portion. An area for accommodating the grounding wire can also be formed between the pressing plate and the plane portion.

[0010] Preferably, the hook is wrapped with fire-resistant and heat-insulating rubber.

[0011] Preferably, the hook further has a curled portion which can form a loop for finger hooking; a bolt connection hole is provided on the flat portion.

[0012] Preferably, the positioning plate is a rectangular plate with a "V"-shaped notch at one end, and the "V"-shaped notch is used to position the joint of the grounding wire.

[0013] Preferably, a waist-shaped hole is arranged in the middle part of the positioning plate, and the waist-shaped hole facilitates adjusting the position of the "V"-shaped notch on the flat portion to position grounding wire joints of different specifications.

[0014] Preferably, a first mounting hole is provided on the pressing plate, and a second mounting hole is provided on the flat portion; the device further includes:

[0015] A hexagonal bolt for sequentially passing through the first mounting hole, the waist-shaped hole, and the second mounting hole and being locked by a wing nut;

[0016] A flat washer sleeved on the hexagonal bolt;

[0017] A spring washer sleeved on the hexagonal bolt.

[0018] Advantageous technical effects of the present application:

[0019] The structure of the present application is simple, easy to use, and has high production efficiency. With the left hand, the feeding, discharging, positioning, and clamping of the grounding wire are achieved by hooking the retractable hook 1 with the finger, and the right hand can perform soldering operations with an electric soldering iron.

[0020] The present application has high versatility and low cost. The positioning plates 2 with "V"-shaped notches of different thicknesses can accommodate the soldering operations of joints of different sizes in the HB6-38 series.

[0021] The soldering quality of the present application is stable and reliable. Compared with the previous free-style manual soldering, with this auxiliary soldering device, the free flow and penetration of the soldering filler metal are well prevented, and the soldering is formed in one step, avoiding the post-soldering grinding and rework processes. It is convenient to use, improves the production and processing efficiency, and significantly improves the stability of the weld quality. Description of the Drawings

[0022] Figure 1 is an exploded view of a welding positioning and clamping device for grounding wire brazing provided by an embodiment of the present application;

[0023] Figure 2 is a usage state diagram of a welding positioning and clamping device for grounding wire brazing provided by an embodiment of the present application;

[0024] Wherein, 1. Hook; 2. Positioning plate; 3. Pressing plate; 4. Hexagonal bolt; 5. Flat washer; 6. Spring washer; 7. Wing nut; 8. Grounding wire. Specific embodiments

[0025] Please refer to Figure 1 , a welding positioning and clamping device for ground wire brazing provided by the present application, which is shaped like a large-sized ring as a whole, very light in weight and convenient to wear.

[0026] It mainly consists of a hook 1, a positioning plate 2, a pressing plate 3, a hexagonal bolt 4, a flat washer 5, a spring washer 6, and a wing nut 7. In particular, in order to avoid welding adhesion, the clamping device is made of a metal material that does not fuse with the molten state of the filler brazing material, such as titanium alloy.

[0027] Among them, the hook 1 is shaped like a ring with a relatively large platform. The hook part is convenient for finger hanging, and the hanging part is wrapped with refractory and heat-insulating rubber; the hook extends out a relatively large flat part as the overall support platform, and bolt connection holes are opened on the platform, and the whole is located at the lower part of the clamping device.

[0028] Among them, the positioning plate 2 is a rectangular plate with a "V"-shaped notch. The "V" is used for the positioning of the ground wire joint; waist-shaped holes are arranged in the middle part of the rectangular plate to facilitate the adjustment of the position of the "V" to use joints of different specifications of HB6-38 for positioning; and the thickness of the positioning plate 2 has several specifications to match the assembly gaps of joints of different specifications of HB6-38. A reasonable assembly gap is conducive to the free entry and exit of the ground wire joint, and at the same time can block the entry of the molten brazing material. It is located on the hook 1 as a whole.

[0029] Among them, the pressing plate 3 is a rectangular pressing plate, whose size is the same as the relatively large platform of the hook 1, and bolt connection holes are arranged on it. It is fixedly clamped with the hook and the positioning plate through the hexagonal bolt 4, the flat washer 5, the spring washer 6, and the wing nut 7, and it is located on the positioning plate as a whole.

[0030] The present application has high versatility and can weld workpieces of different sizes of HB6-38. It can not only meet the requirements of batch part welding positioning and clamping, but also exert a flow-blocking effect on the molten brazing material of the joint. The simple design of the clamping device ensures the convenience and quickness of clamping and positioning during part welding.

[0031] In a feasible implementation manner, please refer to Figure 2 , select a positioning plate with an appropriate thickness according to the specifications of the ground wire to be welded, adjust the assembly position of the waist-shaped hole, and assemble the whole to make it suitable for the positioning and clamping of the ground wire to be welded. Put on the large-sized "ring", that is, this auxiliary positioning device, with the left hand, pick up the ground wire to be welded, hook the hook through the stretching of the finger to push the ground wire to be welded into the "V"-shaped notch of the positioning plate for fixed clamping, and complete the feeding work. Hold an electric soldering iron with the right hand for welding operation. After welding one piece, withdraw the welded ground wire through the stretching of the finger to complete the unloading work. In this way, a welding work cycle is completed, and the next welding operation is carried out.

Claims

1. A welding positioning and clamping device for ground wire brazing, characterized in that, The device includes: A hook for placing the grounding wire, the hook having a flat portion; A positioning plate provided on the flat portion, the positioning plate being used for positioning the grounding wire; A pressing plate provided on the positioning plate, the pressing plate being used for pressing the positioning plate against the flat portion, and a region for accommodating the grounding wire can also be formed between the pressing plate and the flat portion.

2. The device according to claim 1, wherein The hook is wrapped with fireproof and heat-insulating rubber.

3. The device according to claim 2, characterized in that The hook also has a curled portion, the curled portion can form a loop, and the loop is used for finger hanging; bolt connection holes are provided on the flat portion.

4. The device according to claim 3, characterized in that, The positioning plate is a rectangular plate with a "V"-shaped notch at one end, and the "V"-shaped notch is used for positioning the joint of the grounding wire.

5. The device according to claim 4, wherein An oblong hole is arranged in the middle part of the positioning plate, and the oblong hole facilitates adjusting the position of the "V"-shaped notch on the flat portion to position grounding wire joints of different specifications.

6. The device according to claim 5, characterized in that, First mounting holes are provided on the pressing plate, and second mounting holes are provided on the flat portion; the device further includes: A hexagonal bolt for sequentially passing through the first mounting hole, the oblong hole, and the second mounting hole and being locked by a wing nut; A flat washer sleeved on the hexagonal bolt; A spring washer sleeved on the hexagonal bolt.

Images