Combiner cable high-frequency welding tool

Abstract

The utility model relates to a high-frequency welding tool for a combiner cable. The high-frequency welding tool comprises a positioning support table, a positioning support plate, a high-frequency welding coil and a movable reference block, the positioning supporting table comprises a supporting table surface, a surrounding part surrounding three surfaces of the supporting table surface and five equidistantly distributed avoiding grooves formed in the same side of the surrounding part, a moving area of the positioning supporting plate is defined by the surrounding part, and the avoiding grooves comprise a first avoiding groove, a second avoiding groove, a third avoiding groove, a fourth avoiding groove and a fifth avoiding groove which are formed in sequence; the bottom of the first receding groove is flush with the supporting table top, and the high-frequency welding coil is arranged in the third receding groove. The movable reference block is arranged in the first receding groove and can be switched between entering and leaving the moving area. High-frequency welding is adopted, and the problems of cold welding and insufficient welding are avoided. The three positions of the positioning supporting plate can be adjusted through the fence part and the movable reference block, so that high-frequency welding of three cables can be completed in the high-frequency welding coil, and the high-frequency welding coil is convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of high-frequency current heating welding technology, and in particular to a high-frequency welding fixture for combiner cables. Background Technology

[0002] A combiner is a radio frequency (RF) device primarily used to combine multiple RF signals into a single signal to prevent interference. It is widely used in mobile communication systems, especially at the base station transmitter. The main function of a combiner is to merge RF signals from different transmitters and transmit them through a single antenna, thereby improving system efficiency and reliability.

[0003] The combiner includes a resonator, and several cables need to be soldered to the side of the resonator. Previously, each solder joint was soldered using a soldering iron, but this was prone to defects such as cold solder joints and incomplete soldering due to uneven heating of the solder paste. Furthermore, some combiners required soldering three cables, which could only be manually aligned. Even with a single tooling, only one or two positions could typically be located, making it inconvenient to use.

[0004] Chinese patent CN210937637U discloses an ultra-high frequency induction welding fixture for antenna combiners. It utilizes a second rotating block to fix the combiner, and then the entire flipping assembly rotates on a support frame, bringing the welding position close to the ultra-high frequency welding station for welding, thus welding the grounding post to the combiner. However, the ultra-high frequency welding station and the fixture are independent structures; the ultra-high frequency welding station must be actively aligned with the welding position, and multiple welding positions cannot be aligned simultaneously.

[0005] Therefore, a dedicated tooling solution is needed to address these issues. Utility Model Content

[0006] The main purpose of this utility model is to provide a high-frequency welding fixture for combiner cables, which uses high-frequency welding and can adapt to three welding positions, resulting in high work efficiency.

[0007] This utility model achieves the above-mentioned objective through the following technical solution: a high-frequency welding fixture for combiner cables, comprising a positioning support, a positioning plate, a high-frequency welding coil, and a movable reference block; the positioning support includes a support surface, a surrounding portion enclosing three sides of the support surface, and five equidistant clearance slots disposed on the same side of the surrounding portion, the surrounding portion forming a movable area of ​​the positioning plate, the clearance slots including a first clearance slot, a second clearance slot, a third clearance slot, a fourth clearance slot, and a fifth clearance slot arranged sequentially, the bottom of the first clearance slot being flush with the support surface, the high-frequency welding coil being disposed in the third clearance slot; the movable reference block being disposed in the first clearance slot and capable of switching between entering and leaving the movable area.

[0008] Specifically, the movable reference block is positioned on the positioning support by two bolts, and the movable reference block is provided with a stepped elongated hole through which the two bolts pass.

[0009] Furthermore, one of the bolts passes through a spring, which is pressed against the stepped elongated hole.

[0010] Specifically, the positioning plate includes a positioning concave surface, sidewalls surrounding the positioning concave surface from three sides, and at least two positioning pins located on the sidewalls, the sidewalls being broken on the side facing the third recess.

[0011] Furthermore, the positioning concave surface has three clearance notches on the side near the third clearance groove, and the center distance between adjacent clearance notches is equal to the center distance between adjacent clearance grooves.

[0012] The beneficial effects of this utility model's technical solution are:

[0013] 1. The high-frequency welding coil heats up the welding position between the cable and the combiner by electromagnetic induction under the action of high-frequency current, causing the metal to melt and weld, thus avoiding the problems of cold welding and incomplete welding.

[0014] 2. The enclosure and movable reference block allow the positioning tray to be adjusted to three positions, so that all three cables can be welded at high frequency in the high frequency welding coil, making it convenient to use. Attached Figure Description

[0015] Figure 1 This is a perspective view of the high-frequency welding fixture in the embodiment;

[0016] Figure 2 A partial structural diagram showing the mating position of the movable reference block and the positioning support;

[0017] Figure 3 This diagram shows the positional relationship between the first welding combiner and the high-frequency welding fixture.

[0018] Figure 4 This is a diagram showing the positional relationship between the second welding combiner and the high-frequency welding fixture;

[0019] Figure 5 This is a diagram showing the positional relationship between the third welding combiner and the high-frequency welding fixture.

[0020] The numbers in the diagram represent:

[0021] 100-High Frequency Welding Fixture

[0022] 1-Positioning support, 11-Barrier section, 12a-First clearance groove, 12b-Second clearance groove, 12c-Third clearance groove, 12d-Fourth clearance groove, 12e-Fifth clearance groove

[0023] 2-Positioning plate, 21-Positioning concave surface, 211-Allowing notch, 22-Positioning pin.

[0024] 3-High-frequency welding coil,

[0025] 4-Modular reference block, 41-Stepped elongated hole,

[0026] 5- Bolts

[0027] 6-Spring;

[0028] 200 - Combiner, 201 - Positioning hole, 202 - Cable. Detailed Implementation

[0029] The present invention will be further described in detail below with reference to specific embodiments.

[0030] Example:

[0031] like Figure 1 and Figure 2 As shown, the present invention provides a high-frequency welding fixture 100 for combiner cables, comprising a positioning support 1, a positioning plate 2, a high-frequency welding coil 3, a movable reference block 4, two bolts 5, and a spring 6.

[0032] The high-frequency welding coil 3 generates heat at the welding position between the cable 202 and the combiner 200 under the action of high-frequency current, causing the metal to melt and weld, thus avoiding the problems of cold welding and incomplete welding.

[0033] like Figures 1 to 5 As shown, the positioning platform 1 includes a platform surface, a surrounding section 11 enclosing three sides of the platform surface, and five equidistant clearance grooves located on the same side of the surrounding section 11. The surrounding section 11 encloses the moving area of ​​the positioning plate 2. The clearance grooves include a first clearance groove 12a, a second clearance groove 12b, a third clearance groove 12c, a fourth clearance groove 12d, and a fifth clearance groove 12e arranged sequentially. The bottom of the first clearance groove 12a is flush with the platform surface. The positioning plate 2 includes a positioning concave surface 21, side walls surrounding the positioning concave surface 21 from three sides, and at least two positioning pins 22 located on the side walls. The side walls are broken on the side facing the third clearance groove 12c. The positioning concave surface 21 has three clearance notches 211 on the side near the third clearance groove 12c. The center distance between adjacent clearance notches 211 is equal to the center distance between adjacent clearance grooves. The third clearance groove 12c is located in the middle of all clearance grooves, and the high-frequency welding coil 3 is located in the third clearance groove 12c.

[0034] The combiner 200 has multiple positioning holes 201, two of which are diagonally opposite and engage with two positioning pins 22, allowing the combiner 200 to be embedded in the positioning recess 21. The side wall and the enclosure 11 always together surround the combiner 200. Three cables 202 are welded equidistantly along one side of the combiner 200, with each cable 202 protruding from the long side of the combiner 200. The three clearance notches 211 always correspond one-to-one with the positions of the three cables 202. The center-to-center distance between adjacent cables 202 is equal to the center-to-center distance between adjacent clearance notches 211, and also equal to the center-to-center distance between adjacent clearance slots. However, each cable 202 must be welded within the high-frequency welding coil 3 in the middle position, so the positioning support plate 2 needs to switch positions three times for three welding operations, thus requiring five clearance slots. The first welding of three cables 202 places them in the first recessed groove 12a, the second recessed groove 12b, and the third recessed groove 12c, respectively. The second welding of three cables 202 places them in the second recessed groove 12b, the third recessed groove 12c, and the fourth recessed groove 12d, respectively. The third welding of three cables 202 places them in the third recessed groove 12c, the fourth recessed groove 12d, and the fifth recessed groove 12e, respectively. The depths of the different recessed grooves can vary, but because a movable reference block 4 is to be installed at the first recessed groove 12a, the bottom surface of the movable reference block 4 should be flush with the support surface, so the support surface is flush with the bottom surface of the first recessed groove 12a.

[0035] like Figure 2 As shown, the movable reference block 4 is located in the first clearance groove 12a and can switch between entering and leaving the moving area of ​​the positioning tray 2. The movable reference block 4 is limited to the positioning tray 1 by two bolts 5. The movable reference block 4 is provided with a stepped elongated hole 41 for the two bolts 5 to pass through. The spring 6 is passed through one of the bolts 5 and pressed on the stepped elongated hole 41.

[0036] During the first and third welding operations, the positioning plate 2 has two vertical edges attached to one corner of the enclosure 11, at which point the movable reference block 4 is away from the moving area of ​​the positioning plate 2. However, during the second welding operation, only the long edge of the positioning plate 2 is against the middle of the enclosure 11. Therefore, the reference for the short edge needs to be determined by the movable reference block 4. This is done by extending the movable reference block 4 into the moving area of ​​the positioning plate 2 and placing the short edge of the positioning plate 2 against the movable reference block 4, so that the centered clearance notch 211 faces the high-frequency welding coil 3. In this way, the cable 202 can be connected to the side of the combiner 200, thus completing the welding. The enclosure 11 and the movable reference block 4 allow the positioning plate 2 to be adjusted to three positions, enabling all three cables 202 to be welded at high frequency in the high-frequency welding coil 3, which is convenient to use. To prevent the movable reference block 4 from moving, the locking bolt 5 needs to be tightened, allowing the spring 6 to press against the stepped surface of the stepped elongated hole 41, achieving quick tightening and loosening.

[0037] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and all such modifications and improvements fall within the protection scope of this utility model.

Claims

1. A high-frequency welding fixture for combiner cables, characterized in that: The device includes a positioning platform, a positioning plate, a high-frequency welding coil, and a movable reference block. The positioning platform includes a platform surface, a surrounding section enclosing three sides of the platform surface, and five equidistant clearance slots located on the same side of the surrounding section. The surrounding section encloses the moving area of ​​the positioning plate. The clearance slots include a first clearance slot, a second clearance slot, a third clearance slot, a fourth clearance slot, and a fifth clearance slot arranged sequentially. The bottom of the first clearance slot is flush with the platform surface, and the high-frequency welding coil is located in the third clearance slot. The movable reference block is located in the first clearance slot and can switch between entering and leaving the moving area.

2. The high-frequency welding fixture for combiner cables according to claim 1, characterized in that: The movable reference block is fixed on the positioning support by two bolts, and the movable reference block is provided with a stepped elongated hole for the two bolts to pass through.

3. The high-frequency welding fixture for combiner cables according to claim 2, characterized in that: One of the bolts passes through a spring, which is pressed against the stepped elongated hole.

4. The high-frequency welding fixture for combiner cables according to claim 1, characterized in that: The positioning plate includes a positioning concave surface, sidewalls surrounding the positioning concave surface from three sides, and at least two positioning pins located on the sidewalls, the sidewalls being broken on the side facing the third recess.

5. The high-frequency welding fixture for combiner cables according to claim 4, characterized in that: The positioning concave surface has three clearance notches on the side near the third clearance groove, and the center distance between adjacent clearance notches is equal to the center distance between adjacent clearance grooves.

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