Width adjusting mechanism for PCB (Printed Circuit Board) material rack

Abstract

The utility model provides a width adjusting mechanism for a PCB (Printed Circuit Board) material rack, and belongs to the technical field of PCB processing equipment. The material frame comprises a bottom plate, a plurality of guide rods fixed to the bottom plate, two width limiting plates connected to the guide rods in a sliding mode and a width adjusting screw rod, inserting grooves are formed in the inner side faces of the width limiting plates, the width adjusting screw rod is rotationally connected to the bottom plate, the two width limiting plates are each provided with a threaded sleeve, the width adjusting screw rod is provided with two threaded sections opposite in spiral direction, and the two threaded sections are connected with the inserting grooves in a sliding mode. The material frame width adjusting mechanism comprises a magnetic coupling clutch matched with the material frame, the magnetic coupling clutch comprises a rotating shaft, a coupling disc fixed to the end of the rotating shaft and a power source connected with the rotating shaft, a plurality of electromagnetic attraction pieces distributed in a scattered mode are arranged on the end face of the coupling disc, and a clutch disc matched with the coupling disc is arranged at the end of the width adjusting screw. Iron adsorption pieces distributed in a scattered mode are arranged on the clutch disc. The utility model has the advantage that the width of the plugboard can be adjusted.

Description

Technical Field

[0001] The utility model belongs to the technical field of PCB board processing equipment and relates to a PCB board rack width adjustment mechanism. Background Art

[0002] There are several special processes in the PCB production process. Products cannot be directly stacked or touched, but must be inserted into special racks separately. Due to the different sizes of PCB boards, the automated board insertion operation requires the size of the rack to be adapted, that is, the board insertion width of the rack can be adjusted as needed. Utility Model Content

[0003] The purpose of the utility model is to provide a PCB board rack width adjustment mechanism in view of the above-mentioned problems existing in the prior art. The technical problem to be solved by the utility model is how to adjust the rack width to adapt to PCB boards of different sizes.

[0004] The purpose of the utility model can be achieved through the following technical solutions: a PCB board rack width adjustment mechanism, characterized in that the rack includes a bottom plate, a plurality of guide rods fixed on the bottom plate, two width limiting plates slidably connected to the guide rods and a width adjustment screw, the inner side of the width limiting plate has a slot, the width adjustment screw is rotatably connected to the bottom plate, the two width limiting plates are respectively provided with a threaded sleeve, and the width adjustment screw has two threaded sections with opposite spiral directions;

[0005] The material rack width adjustment mechanism includes a magnetic coupling clutch adapted to the material rack, the magnetic coupling clutch includes a rotating shaft, a coupling disk fixed to the end of the rotating shaft and a power source connected to the rotating shaft, the end surface of the coupling disk is provided with a plurality of electromagnetic adsorption parts with scattered points, the end of the width adjustment screw is provided with a clutch disk adapted to the coupling disk, and the clutch disk is provided with iron adsorption parts with scattered points.

[0006] The material rack is a moving part, and the rotating shaft and the power source can be set on the moving platform of the material rack to realize contactless width adjustment. The contactless width adjustment is realized by a magnetic coupling mechanism. The contactless width adjustment method is: when the material rack completely enters the transverse conveyor line, the clutch disk on the width adjustment leakage inductor is just opposite to the coupling disk on the positioning seat, and the electromagnetic adsorption part on the coupling disk is energized to complete the contactless connection between the coupling disk and the clutch disk. The coupling disk is driven to rotate by the power source, driving the width adjustment screw to rotate, thereby realizing the adjustment of the spacing between the two width limiting plates, that is, the adjustment of the width of the plug plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 It is a structural diagram of the transverse conveyor line and the material rack in coordination.

[0008] Figure 2 It is a structural diagram of the material rack.

[0009] Figure 3 It is a schematic diagram of the principle of the magnetic coupling clutch.

[0010] In the figure, 11, guide platform; 12, positioning seat; 13, connecting conveyor belt; 14, rotating shaft; 15, coupling plate; 16, electromagnetic adsorption component; 17, clutch plate; 18, iron adsorption component; 21, bottom plate; 22, guide rod; 23, width limiting plate; 24, width adjustment screw. DETAILED DESCRIPTION

[0011] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0012] like Figure 1-Figure 3 As shown, the material rack includes a base plate 21, a plurality of guide rods 22 fixed on the base plate 21, two width limiting plates 23 slidably connected to the guide rods 22, and a width adjusting screw 24, the inner side of the width limiting plate 23 has a slot, the width adjusting screw 24 is rotatably connected to the base plate 21, the two width limiting plates 23 are respectively provided with a threaded sleeve, and the width adjusting screw 24 has two threaded sections with opposite spiral directions.

[0013] The transverse conveyor line includes a guide platform 11 , a positioning seat 12 slidably connected to the guide platform 11 , and a connecting conveyor belt 13 arranged on the positioning seat 12 .

[0014] A magnetic coupling clutch is arranged on the positioning seat 12, and the magnetic coupling clutch is connected to a power source that can drive the magnetic coupling clutch to rotate. The magnetic coupling clutch includes a rotating shaft 14 rotatably connected to the positioning seat 12, and the end of the rotating shaft 14 has a coupling disk 15, and the end surface of the coupling disk 15 has a plurality of electromagnetic adsorption parts 16 with scattered point distribution, and the end of the width adjustment screw 24 has a clutch disk 17 adapted to the coupling disk 15, and the clutch disk 17 has iron adsorption parts 18 with scattered point distribution.

[0015] The contactless width adjustment method is as follows: when the rack 4 completely enters the transverse conveyor line 2, the clutch disc 27 on the width adjustment leakage inductor is just opposite to the coupling disc 25 on the positioning seat 22, and the electromagnetic adsorption member 26 on the coupling disc 25 is energized to complete the contactless connection between the coupling disc 25 and the clutch disc 27. The coupling disc 25 is driven to rotate by the power source, driving the width adjustment screw 24 to rotate, thereby adjusting the spacing between the two width limiting plates 23, that is, adjusting the width of the plug-in board. The size of the PCB board can be detected, and the detection data is sent to the power source. When the rack moves to the corresponding position, the power source starts to control the width adjustment screw 24 to adjust the width of the plug-in board rack to adapt to the corresponding size of the PCB board.

[0016] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A PCB board rack width adjustment mechanism, characterized in that: The material rack comprises a bottom plate (21), a plurality of guide rods (22) fixed on the bottom plate (21), two width limiting plates (23) slidably connected to the guide rods (22), and a width adjusting screw rod (24), wherein the inner side surface of the width limiting plate (23) is provided with a slot, the width adjusting screw rod (24) is rotatably connected to the bottom plate (21), the two width limiting plates (23) are respectively provided with a threaded sleeve, and the width adjusting screw rod (24) is provided with two threaded sections with opposite spiral directions; The material rack width adjustment mechanism comprises a magnetic coupling clutch adapted to the material rack, the magnetic coupling clutch comprises a rotating shaft (14), a coupling disc (15) fixed to the end of the rotating shaft (14) and a power source connected to the rotating shaft (14), the end surface of the coupling disc (15) is provided with a plurality of electromagnetic adsorption members (16) distributed at scattered points, the end of the width adjustment screw rod (24) is provided with a clutch disc (17) adapted to the coupling disc (15), and the clutch disc (17) is provided with iron adsorption members (18) distributed at scattered points.

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