A hot riveting forming tool for a metal microstrip line

Abstract

The utility model relates to the technical field of hot riveting and discloses a hot riveting forming tool for metal microstrip line, which comprises a processing frame, a buffering hot riveting mechanism fixedly installed in the inner cavity of the processing frame, an extrusion assembly comprising a cylinder, the top end of the cylinder being fixedly connected with the top of the inner cavity of the processing frame, a gas rod fixedly installed on the output end of the cylinder through a piston, a connecting plate fixedly installed at the bottom end of the gas rod, and a spring further included in the extrusion assembly. The hot riveting forming tool for metal microstrip line is characterized in that the cylinder drives the connecting plate to move downward through the gas rod, the connecting plate drives the upper die to move downward through the connecting sleeve rod, the upper die is heated and extruded on the extrusion fixing bolt, the metal microstrip line is fixed, and the speed of the upper die moving downward is changed from fast to slow under the influence of the spring during the movement of the upper die, so that the pressure of the upper die extruding the metal microstrip line is controlled to be appropriate.

Description

Technical Field

[0001] This utility model relates to the technical field of hot riveting, and in particular to a hot riveting forming tool for metal microstrip wires. Background Technology

[0002] Metal microstrip lines are planar transmission lines made using microfabrication technology. Their basic structure consists of a layer of metal conductor (usually gold-plated copper or alloy) attached to a dielectric substrate (such as ceramic, polytetrafluoroethylene, etc.), with a continuous metal grounding layer on the back of the substrate. They are widely used in microwave and millimeter-wave circuits (such as amplifiers, filters, and antennas) to achieve low-loss, controllable impedance transmission of high-frequency signals.

[0003] When processing existing metal microstrip lines, components are usually connected together by soldering. However, the high temperature during soldering can cause thermal damage to the fragile dielectric substrate, leading to solder splatter and potentially high-frequency short circuits. Additionally, flux residues that affect radio frequency performance may remain. Utility Model Content

[0004] In view of the problems mentioned above, such as the use of welding process in the processing of existing metal microstrip line ends, the thermal damage to the fragile dielectric substrate caused by high temperature, the high-frequency short circuit that may be caused by solder splash, and the residual flux that affects radio frequency performance, this utility model is proposed.

[0005] Therefore, the purpose of this utility model is to provide a hot riveting forming fixture for metal microstrip lines. The purpose is to fix the metal microstrip lines using a hot riveting process, thereby avoiding thermal damage to the fragile dielectric substrate caused by high temperature, preventing high-frequency short circuits that may be caused by solder splashing, and eliminating flux residues that affect radio frequency performance.

[0006] To solve the above technical problems, this utility model provides the following technical solution: a hot riveting forming fixture for metal microstrip wires, including a processing frame, wherein a buffer hot riveting mechanism is fixedly installed in the inner cavity of the processing frame;

[0007] The buffer hot riveting mechanism includes an extrusion assembly, which includes a cylinder. The top end of the cylinder is fixedly connected to the top of the inner cavity of the processing frame. A piston rod is fixedly installed on the output end of the cylinder, and a connecting plate is fixedly installed on the bottom end of the piston rod.

[0008] The extrusion assembly also includes a spring, the top of which is fixedly connected to the bottom of the connecting plate, and the bottom of which is fixedly connected to the bottom of the inner cavity of the processing frame.

[0009] The extrusion assembly also includes a limiting rod, the top end of which is fixedly connected to the top of the inner cavity of the processing frame, and a connecting sleeve rod is slidably installed on the outer surface of the limiting rod, the outer surface of which is fixedly connected to the front of the connecting plate.

[0010] The extrusion assembly also includes an upper die and a lower die. The inner surface of the upper die is engaged with the outer surface of the connecting sleeve rod, and the bottom of the lower die is fixedly connected to the bottom of the inner cavity of the processing frame.

[0011] The buffer hot riveting mechanism also includes a heating and cooling assembly, which includes a cooling box. The left side of the cooling box is fixedly connected to the right side of the processing frame. A cooling water tank is fixedly installed on the inner surface of the cooling box, and a water pump is fixedly installed on the right side of the cooling water tank through a connecting pipe.

[0012] The heating and cooling assembly also includes a circulating cooling pipe. The front end of the circulating cooling pipe passes through the cooling box, the processing rack and the upper mold in sequence and extends into the interior of the cooling box. The circulating cooling pipe is wound and connected inside the upper mold. The front end of the circulating cooling pipe is connected to the top of the cooling water tank.

[0013] The heating and cooling assembly also includes a heating copper wire. The outer surface of the heating copper wire is spirally wound and connected to the inner surface of the upper mold. Both ends of the heating copper wire are fixedly installed with wires. The left ends of the wires pass through the upper mold and the processing frame in sequence and extend to the outside of the processing frame.

[0014] As a preferred embodiment of the hot riveting forming tooling for the metal microstrip wire described in this utility model, wherein:

[0015] Compared with the prior art, the present invention has at least the following beneficial effects:

[0016] 1. This utility model incorporates a buffer design during the hot riveting process of the metal microstrip line, where the pressure is cushioned at the bottom. Through the combined use of a cylinder and air rod with a connecting plate and spring, and the combined use of a connecting plate and a limiting rod with a connecting sleeve rod and an upper mold, the upper mold moves linearly. This ensures that when the upper mold presses the fixing bolt to the bottom, the applied pressure is controlled and is not as strong as it was at the beginning. This guarantees that the applied pressure can rivet the metal microstrip line well without damaging it.

[0017] 2. This utility model improves the rapid cooling of the riveting connection during the hot riveting of metal microstrip lines by adding a design that enables rapid cooling of the riveting connection during the hot riveting of metal microstrip lines. This is achieved by using a cooling water tank and connecting pipe in conjunction with a water pump and circulating cooling pipe, and by using the circulating cooling pipe and upper mold in conjunction with heating copper wire and wire. This avoids the continuous impact of high temperature on the hot riveting position of the metal microstrip lines. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the hot riveting forming tooling for the metal microstrip wire of this utility model;

[0019] Figure 2 This utility model provides a hot riveting forming tool for metal microstrip wires. Figure 1 A schematic diagram of the enlarged structure of A in the middle;

[0020] Figure 3 This is a partial cross-sectional view of the connecting sleeve of the hot riveting forming tooling for the metal microstrip wire of this utility model.

[0021] Figure 4 This is a cross-sectional three-dimensional structural diagram of the cooling box of the hot riveting forming tooling for the metal microstrip wire of this utility model.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Processing frame; 2. Buffer hot riveting mechanism; 21. Extrusion assembly; 211. Cylinder; 212. Air rod; 213. Connecting plate; 214. Spring; 215. Limiting rod; 216. Connecting sleeve rod; 217. Upper mold; 218. Lower mold; 22. Heating and cooling assembly; 221. Cooling box; 222. Cooling water tank; 223. Connecting pipe; 224. Water pump; 225. Circulating cooling pipe; 226. Heating copper wire; 227. Electrical wire. Detailed Implementation

[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0025] Example 1

[0026] Reference Figures 1-2 This is the first embodiment of the present invention, which provides a hot riveting forming fixture for metal microstrip wires. The hot riveting forming fixture for metal microstrip wires includes a processing frame 1, characterized in that: a buffer hot riveting mechanism 2 is fixedly installed in the inner cavity of the processing frame 1.

[0027] The buffer hot riveting mechanism 2 includes an extrusion assembly 21, which includes a cylinder 211. The top end of the cylinder 211 is fixedly connected to the top of the inner cavity of the processing frame 1. The output end of the cylinder 211 is fixedly mounted with a piston rod 212, and the bottom end of the piston rod 212 is fixedly mounted with a connecting plate 213.

[0028] The extrusion assembly 21 also includes a spring 214, the top of which is fixedly connected to the bottom of the connecting plate 213, and the bottom of which is fixedly connected to the bottom of the inner cavity of the processing frame 1.

[0029] The extrusion assembly 21 also includes a limiting rod 215, the top end of which is fixedly connected to the top of the inner cavity of the processing frame 1, and a connecting sleeve rod 216 is slidably installed on the outer surface of the limiting rod 215, and the outer surface of the connecting sleeve rod 216 is fixedly connected to the front of the connecting plate 213.

[0030] The extrusion assembly 21 also includes an upper die 217 and a lower die 218. The inner surface of the upper die 217 is engaged with the outer surface of the connecting sleeve 216, and the bottom of the lower die 218 is fixedly connected to the bottom of the inner cavity of the processing frame 1.

[0031] During use, cylinder 211 drives connecting plate 213 to move downward via air rod 212. Connecting plate 213 drives upper mold 217 to move downward via connecting sleeve rod 216. The upper mold 217 is pressed and fixed onto the fixing bolt for heating and pressing, thus fixing the metal microstrip line. During the movement of the upper mold 217, it is affected by spring 214, which slows down the downward speed of the upper mold 217, so that the pressure is controlled appropriately when the upper mold 217 presses the metal microstrip line.

[0032] Example 2

[0033] Reference Figures 1-4 This is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that the buffer hot riveting mechanism 2 further includes a heating and cooling assembly 22. The heating and cooling assembly 22 includes a cooling box 221. The left side of the cooling box 221 is fixedly connected to the right side of the processing frame 1. A cooling water tank 222 is fixedly installed on the inner surface of the cooling box 221. A water pump 224 is fixedly installed on the right side of the cooling water tank 222 through a connecting pipe 223.

[0034] The heating and cooling assembly 22 also includes a circulating cooling pipe 225. The front end of the circulating cooling pipe 225 passes through the cooling box 221, the processing rack 1 and the upper mold 217 in sequence and extends into the interior of the cooling box 221. The circulating cooling pipe 225 is wound and connected inside the upper mold 217. The front end of the circulating cooling pipe 225 is connected to the top of the cooling water tank 222.

[0035] The heating and cooling assembly 22 also includes a heating copper wire 226. The outer surface of the heating copper wire 226 is spirally wound and connected to the inner surface of the upper mold 217. Both ends of the heating copper wire 226 are fixedly installed with wires 227. The left end of the wires 227 passes through the upper mold 217 and the processing frame 1 in sequence and extends to the outside of the processing frame 1.

[0036] During use, the metal microstrip line and junction box are placed between the upper mold 217 and the lower mold 218, and the fixing bolt is passed through the metal microstrip line and junction box. Then, the wire 227 is energized between the heating copper wires 226, causing the heating copper wires 226 to heat up and generate high temperature inside the upper mold 217. When the upper mold 217 descends to the bottom, the heating copper wires 226 stop heating, and the cooling water is drawn out of the cooling water tank 222 by the water pump 224 and injected into the circulating cooling pipe 225 to quickly transfer the heat from the bottom of the upper mold 217 and quickly solidify and shape the riveting point.

[0037] The remaining structure is the same as that in Example 1.

[0038] Based on embodiments 1-2, the working principle of this utility model is as follows: The user first places the metal microstrip line and the junction box between the upper mold 217 and the lower mold 218, and passes the fixing bolt through the metal microstrip line and the junction box. Then, the wire 227 supplies electricity to the heating copper wire 226, causing the heating copper wire 226 to heat up, generating high temperature inside the upper mold 217. Simultaneously, the cylinder 211 drives the connecting plate 213 downwards via the air rod 212. The connecting plate 213, through the connecting sleeve rod 216, drives the upper mold 217 downwards, thus lowering the upper mold 217. 7. The metal microstrip line is fixed by heating and pressing on the pressing bolt. During the movement of the upper mold 217, the downward speed of the upper mold 217 is slowed down by the influence of the spring 214, so that the pressure of the upper mold 217 when pressing the metal microstrip line is controlled appropriately. When the upper mold 217 descends to the bottom, the heating copper wire 226 stops heating, and the cooling water is drawn out of the cooling water tank 222 by the water pump 224 and injected into the circulating cooling pipe 225 to quickly transfer the heat from the bottom of the upper mold 217 and quickly solidify and shape the riveting point.

[0039] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A hot riveting forming fixture for metal microstrip wires, comprising a processing frame (1), characterized in that: The inner cavity of the processing frame (1) is fixedly installed with a buffer hot riveting mechanism (2); The buffer hot riveting mechanism (2) includes an extrusion assembly (21), which includes a cylinder (211). The top end of the cylinder (211) is fixedly connected to the top of the inner cavity of the processing frame (1). The output end of the cylinder (211) is fixedly mounted with a piston rod (212), and the bottom end of the piston rod (212) is fixedly mounted with a connecting plate (213).

2. The hot riveting forming fixture for metal microstrip wires according to claim 1, characterized in that: The extrusion assembly (21) also includes a spring (214), the top of which is fixedly connected to the bottom of the connecting plate (213), and the bottom of which is fixedly connected to the bottom of the inner cavity of the processing frame (1).

3. The hot riveting forming fixture for metal microstrip wires according to claim 1, characterized in that: The extrusion assembly (21) also includes a limiting rod (215), the top end of which is fixedly connected to the top of the inner cavity of the processing frame (1), and a connecting sleeve rod (216) is slidably installed on the outer surface of the limiting rod (215), and the outer surface of the connecting sleeve rod (216) is fixedly connected to the front of the connecting plate (213).

4. The hot riveting forming fixture for metal microstrip wires according to claim 1, characterized in that: The extrusion assembly (21) further includes an upper mold (217) and a lower mold (218). The inner surface of the upper mold (217) is engaged with the outer surface of the connecting sleeve (216), and the bottom of the lower mold (218) is fixedly connected to the bottom of the inner cavity of the processing frame (1).

5. The hot riveting forming fixture for metal microstrip wires according to claim 1, characterized in that: The buffer hot riveting mechanism (2) further includes a heating and cooling assembly (22), which includes a cooling box (221). The left side of the cooling box (221) is fixedly connected to the right side of the processing frame (1). A cooling water tank (222) is fixedly installed on the inner surface of the cooling box (221), and a water pump (224) is fixedly installed on the right side of the cooling water tank (222) through a connecting pipe (223).

6. The hot riveting forming fixture for metal microstrip wires according to claim 5, characterized in that: The heating and cooling assembly (22) also includes a circulating cooling pipe (225). The front end of the circulating cooling pipe (225) passes through the cooling box (221), the processing rack (1) and the upper mold (217) in sequence and extends into the interior of the cooling box (221). The circulating cooling pipe (225) is wound and connected inside the upper mold (217). The front end of the circulating cooling pipe (225) is connected to the top of the cooling water tank (222).

7. The hot riveting forming fixture for metal microstrip lines according to claim 5, characterized in that: The heating and cooling assembly (22) also includes a heating copper wire (226). The outer surface of the heating copper wire (226) is spirally wound and connected to the inner surface of the upper mold (217). Both ends of the heating copper wire (226) are fixedly installed with wires (227). The left end of the wires (227) passes through the upper mold (217) and the processing frame (1) in sequence and extends to the outside of the processing frame (1).

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