Wave-soldering PCB supporting mechanism

Abstract

The utility model relates to a wave-soldering PCB supporting mechanism which comprises a steel wire and two sets of tensioning assemblies used for being connected with the two ends of the steel wire respectively, the two sets of tensioning assemblies are connected to the two ends of a wave-soldering machine table respectively, and the steel wire penetrates through the middle of a conveying line of the wave-soldering machine table to play a role in supporting a PCB. And poor welding caused by deformation of the PCB in the furnace passing process is effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of PCB board production, in particular to a wave soldering PCB board supporting mechanism. Background Art

[0002] Currently, PCB boards are large in size and easily deformed when passing through the furnace, resulting in poor soldering. It is necessary to add a soldering fixture to carry them through the furnace, which increases the cost of the fixture investment. Summary of the Invention

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a wave soldering PCB board support mechanism for supporting the PCB board when passing through a furnace, thereby preventing the PCB board from deforming during the furnace process and causing poor soldering.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The wave soldering PCB board support mechanism includes a steel wire and two sets of tensioning components for connecting the two ends of the steel wire. The two sets of tensioning components are connected to the two ends of the wave soldering machine. The steel wire runs through the middle of the conveyor line of the wave soldering machine.

[0006] The tensioning assembly includes a support seat, a transmission screw, a guide rod, a slide and a driver. The support seat is fixed to the end of the wave soldering machine, the transmission screw and the guide rod are respectively arranged along the width direction of the transmission line, and both ends of the transmission screw are rotatably connected to the support seat, one end of the transmission screw is transmission-connected to the driver, and the driver drives the transmission screw to rotate; both ends of the guide rod are fixed to the support seat, the slide is slidably connected to the guide rod, and the slide is transmission-connected to the transmission screw;

[0007] The slide is provided with a front baffle and a rear baffle set at intervals, and a pull rod is slidably connected to the front baffle and the rear baffle, and a threaded portion is provided on the outer wall of the pull rod. The front end of the pull rod is fixedly connected to the end of the wire rope, and the pull rod is provided with a baffle located between the front baffle and the rear baffle. A compression spring is limitedly positioned between the front baffle and the baffle on the pull rod, and an adjusting nut is also threadedly connected to the pull rod, and the adjusting nut rests against the back of the rear baffle.

[0008] Furthermore, the driver is a handwheel, which is connected to one end of the transmission screw through a bevel gear pair.

[0009] Furthermore, a through hole is provided at the front end of the pull rod, and the end of the wire rope passes through the through hole and is locked by a locking screw.

[0010] Furthermore, a height-adjustable support frame is provided on the top of the support seat, and a guide wheel is rotatably connected to the top of the support frame. The end of the wire rope passes around the guide wheel and is fixedly connected to the front end of the pull rod.

[0011] Furthermore, the support frame is provided with a vertically arranged long strip mounting hole.

[0012] This utility model adopts the above technical solution, inserting a steel wire through the interior of the wave soldering machine to support the PCB board, effectively preventing the PCB board from deforming during the furnace and causing poor soldering. In addition, the utility model can adjust the position of the steel wire to meet the support requirements of different PCB boards during the furnace. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0014] Figure 1 It is a structural diagram of the utility model;

[0015] Figure 2 It is a structural diagram of the tensioning component. DETAILED DESCRIPTION

[0016] like Figure 1-2 As shown, the utility model wave soldering PCB board support mechanism includes a steel wire 1 and two sets of tensioning components 2 respectively used to connect the two ends of the steel wire 1. The two sets of tensioning components 2 are respectively connected to the two ends of the wave soldering machine 3. The steel wire 1 passes through the middle of the transmission line of the wave soldering machine 3 ( Figure 1 The wave soldering machine 3 in the figure is a simple schematic diagram).

[0017] The tensioning assembly 2 includes a support seat 21, a transmission screw 22, a guide rod 23, a slide 24 and a driver 25. The support seat 21 is fixed to the end of the wave soldering machine 3. The transmission screw 22 and the guide rod 23 are respectively arranged along the width direction of the transmission line, and the two ends of the transmission screw 22 are rotatably connected to the support seat 21. One end of the transmission screw 22 is transmission connected to the driver 25, and the driver 25 drives the transmission screw 22 to rotate; the two ends of the guide rod 23 are fixed on the support seat 21, the slide 24 is slidingly connected to the guide rod 23, and the slide 24 is transmission connected to the transmission screw 22.

[0018] The slide 24 is provided with a front baffle and a rear baffle set at intervals, and a pull rod 26 is slidably connected to the front baffle and the rear baffle. A threaded portion is provided on the outer wall of the pull rod 26, and the front end of the pull rod 26 is fixedly connected to the end of the wire rope. The pull rod 26 is provided with a stopper 29 located between the front baffle and the rear baffle (the stopper 29 can be a stopping nut threadedly connected to the pull rod 26), and the pull rod 26 is provided with a compression spring 27 limited between the front baffle and the stopper. The pull rod 26 is also threadedly connected with an adjusting nut 28, which rests against the back of the rear baffle. The pull rod 26 is driven to move by rotating the adjusting nut 28, thereby adjusting the tightness of the wire rope 1.

[0019] Driver 25 is a hand wheel, which is connected to one end of the transmission screw rod 22 by a bevel gear pair. By rotating the hand wheel, the slide 24 is driven to move left and right, thereby adjusting the position of the steel wire rope.

[0020] Among them, the front end of the pull rod 26 is provided with a through hole, and the end of the wire rope passes through the through hole and is locked by a locking screw to achieve the fixation of the steel wire 1 and the front end of the pull rod 26.

[0021] The top of the support base 21 is provided with a height-adjustable support frame 210. The top of the support frame 210 is rotatably connected to a guide wheel 211. The end of the wire rope passes over the guide wheel 211 and is fixedly connected to the front end of the pull rod 26. The height of the guide wheel 211 and the height of the wire rope 1 can be adjusted by adjusting the height of the support frame 210 through the height position of the long strip mounting hole on it.

[0022] The utility model pulls the steel wire 1 through the tensioning components 2 at both ends of the wave soldering machine 3, thereby passing the steel wire 1 through the interior of the wave soldering machine 3, playing a supporting role for the PCB board, and effectively avoiding deformation of the PCB board during the furnace process and causing poor welding.

[0023] The above describes the specific implementation of the present invention, but those skilled in the art should understand that this is only an example. Those skilled in the art can make various changes or modifications to this implementation without departing from the principle and essence of the present invention, but these changes and modifications will fall within the scope of protection of the present invention.

Claims

1. Wave soldering PCB board support mechanism, characterized by: It includes a steel wire and two sets of tensioning components for connecting the two ends of the steel wire. The two sets of tensioning components are connected to the two ends of the wave soldering machine respectively. The steel wire runs through the middle of the transmission line of the wave soldering machine. The tensioning assembly includes a support seat, a transmission screw, a guide rod, a slide and a driver. The support seat is fixed to the end of the wave soldering machine, the transmission screw and the guide rod are respectively arranged along the width direction of the transmission line, and both ends of the transmission screw are rotatably connected to the support seat, one end of the transmission screw is transmission-connected to the driver, and the driver drives the transmission screw to rotate; both ends of the guide rod are fixed to the support seat, the slide is slidably connected to the guide rod, and the slide is transmission-connected to the transmission screw; The slide is provided with a front baffle and a rear baffle set at intervals, and a pull rod is slidably connected to the front baffle and the rear baffle, and a threaded portion is provided on the outer wall of the pull rod. The front end of the pull rod is fixedly connected to the end of the wire rope, and the pull rod is provided with a baffle located between the front baffle and the rear baffle. A compression spring is limitedly positioned between the front baffle and the baffle on the pull rod, and an adjusting nut is also threadedly connected to the pull rod, and the adjusting nut rests against the back of the rear baffle.

2. The wave soldering PCB board support mechanism according to claim 1, characterized in that: The driver is a hand wheel, which is connected to one end of a transmission screw through a bevel gear pair.

3. The wave soldering PCB board support mechanism according to claim 1, characterized in that: The front end of the pull rod is provided with a through hole, and the end of the steel wire rope passes through the through hole and is locked by a locking screw.

4. The wave soldering PCB board support mechanism according to claim 1, characterized in that: A support frame with adjustable height is provided on the top of the support seat, and a guide wheel is rotatably connected to the top of the support frame. The end of the steel wire rope passes around the guide wheel and is fixedly connected to the front end of the pull rod.

5. The wave soldering PCB board support mechanism according to claim 4, characterized in that: The support frame is provided with a long strip mounting hole arranged vertically.

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