CN210037501U

CN210037501U - Printed circuit board wearing and tearing testing arrangement

Info

Publication number: CN210037501U
Application number: CN201920368675.XU
Authority: CN
Inventors: 谢勋伟; 刘宇春; 蔡铭
Original assignee: SHANTOU CHAOSHENG PRINTED PLATE Co; Shantou Ultrasound Printed Board (second Factory) Co Ltd
Current assignee: SHANTOU CHAOSHENG PRINTED PLATE Co; Shantou Ultrasound Printed Board (second Factory) Co Ltd
Priority date: 2019-03-22
Filing date: 2019-03-22
Publication date: 2020-02-07
Anticipated expiration: 2029-03-22

Abstract

The utility model relates to the field of circuit board production, in particular to a printed circuit board abrasion testing device, which comprises a frame, a control panel, a power switch, a buzzer and a start-stop button; the power switch, the buzzer and the start-stop button are arranged on the control panel; a horizontal bench clamp is arranged on the lower side of the rack, and an object to be detected is clamped by the bench clamp; a grinding knife which reciprocates left and right in the horizontal direction is arranged above the bench clamp, and abrasive paper facing the bench clamp is detachably arranged on the grinding knife; the top of whetting a knife is provided with the weight holder that can highly adjust in vertical direction, and the pot head of weight holder is equipped with and can dismantle and be provided with the weight. The reciprocating motion is used for driving the knife sharpening to grind, and the weights are used for applying constant pressure to the knife sharpening, so that the abrasion stability is ensured. The grinding condition is convenient for adjust, and the accessible is changed abrasive medium by abrasive paper, and the accessible adjustment weight changes grinding pressure, and the accessible adjusts motor controller and changes the grinding speed.

Description

Printed circuit board wearing and tearing testing arrangement

Technical Field

The utility model relates to a circuit board production field specifically is a printed circuit board wearing and tearing testing arrangement.

Background

Printed circuit boards are used more and more widely, and some of the printed circuit boards are directly used as structural boards and contact boards in signal transmission connectors, and in the process of plugging and unplugging the connectors, the printed circuit boards rub against pressing pieces, fastening pieces, contacts and the like, so that loss (hereinafter referred to as abrasion) is caused.

The abrasion resistance of the printed circuit board becomes a new detection index, and the abrasion test work of the printed circuit board is difficult to manually finish due to the fact that the size and the direction of continuous force application of a hand are unstable and difficult to quantify. Therefore, it is necessary to design an automatic abrasion testing device for a printed circuit board to solve the problem of stable and controllable abrasion testing in the printed circuit board industry.

Disclosure of Invention

An object of the utility model is to provide a printed circuit board wearing and tearing testing arrangement to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a printed circuit board abrasion testing device comprises a rack, a control panel, a power switch, a buzzer and a start-stop button; the power switch, the buzzer and the start-stop button are arranged on the control panel; a horizontal bench clamp is arranged on the lower side of the rack, and an object to be detected is clamped by the bench clamp; a grinding knife which reciprocates left and right in the horizontal direction is arranged above the bench clamp, abrasive paper facing the bench clamp is detachably mounted on the grinding knife, and the grinding knife moves left and right to grind a circuit board on the bench clamp by the abrasive paper, so that the circuit board is abraded; the top of whetting a knife is provided with the weight holder that can highly adjust in vertical direction, and the pot head of weight holder is equipped with and can dismantle and be provided with the weight.

Further: the left end of the knife sharpener is fixedly connected with a horizontal connecting rod, the horizontal connecting rod penetrates through a horizontal connecting rod retainer fixed on the rack, and the horizontal connecting rod is kept to move in the horizontal direction through the horizontal connecting rod retainer, so that the left and right movement of the knife sharpener is realized.

Further: the tail end of the horizontal connecting rod is fixedly connected with a driving structure with the horizontal connecting rod capable of moving left and right in a reciprocating mode, and driving force is provided for the reciprocating movement of the knife grinder.

Further: the driving structure comprises a motor, a cam and a universal connecting rod, the motor is horizontally fixed on the rack, the cam is fixedly installed on an output shaft of the motor and drives the cam to rotate through the motor, the cam is connected with the horizontal connecting rod through the universal connecting rod, the universal connecting rod pulls the horizontal connecting rod to do horizontal reciprocating motion, the motor is electrically connected with a motor controller arranged on the control panel, the motor is controlled to rotate through the motor controller, different rotating speeds of the motor are adjusted, and the frequency of the sharpening reciprocating motion is changed.

Further: the lower end of the weight holder is provided with a roller which is in contact with the upper surface of the knife grinder, so that the weight holder and the knife grinder can move relatively, and the horizontal resistance to the knife grinder is reduced.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses simple structure, reliable and stable use reciprocating motion drive to whet a knife and grind, and reciprocating motion's speed depends on the rotational speed of motor, uses the weight to apply constant pressure to whetting a knife, guarantees the stability of wearing and tearing. The grinding condition is convenient for adjust, and the accessible is changed abrasive medium by abrasive paper, and the accessible adjustment weight changes grinding pressure, and the accessible adjusts motor controller and changes the grinding speed. Compare with traditional manual grinding, can promote the uniformity of grinding by a wide margin, reduce operator's skill requirement, different operators also can produce the test piece of same grinding quality, have reduced operator's intensity of labour simultaneously, have promoted labor efficiency.

Drawings

FIG. 1 is a schematic structural diagram of a PCB abrasion testing device;

FIG. 2 is a schematic view of a connection structure of a knife blade in the PCB abrasion testing device;

in the figure: 1-a frame; 2-a control panel; 3-a power switch; 4-a buzzer; 5-start-stop button; 6-a motor; 7-a motor controller; 8-bench clamp; 9-a cam; 10-a universal connecting rod; 11-a horizontal link; 12-a horizontal link holder; 13-sharpening the knife; 14-sand paper; 15-weight; 16-weight holder; 17-the analyte.

Detailed Description

Example 1

Referring to the drawings, in an embodiment of the present invention, a printed circuit board abrasion testing apparatus includes a rack 1, a control panel 2, a power switch 3, a buzzer 4, and a start-stop button 5; the power switch 3, the buzzer 4 and the start-stop button 5 are arranged on the control panel 2; a horizontal bench clamp 8 is arranged at the lower side of the frame 1, and an object to be measured 17 is clamped by the bench clamp 8; a grinding knife 13 which reciprocates left and right in the horizontal direction is arranged above the bench clamp 8, abrasive paper 14 facing the bench clamp 8 is detachably mounted on the grinding knife 13, the type of the abrasive paper 14 is 12-10000 meshes, and the grinding knife 13 is moved left and right to grind the circuit board on the bench clamp 8 by the abrasive paper 14, so that the abrasion of the circuit board is realized; a horizontal connecting rod 11 is fixedly connected to the left end of the knife 13, the horizontal connecting rod 11 penetrates through a horizontal connecting rod retainer 12 fixed on the rack 1, and the horizontal connecting rod 11 is kept to move in the horizontal direction through the horizontal connecting rod retainer 12, so that the left and right movement of the knife 13 is realized; the tail end of the horizontal connecting rod 11 is fixedly connected with a driving structure with the horizontal connecting rod 11 moving in a left-right reciprocating mode, and driving force is provided for the reciprocating movement of the knife grinder 13.

The top of whetting a knife 13 is provided with can be in vertical direction height adjustment's weight holder 16, the gyro wheel with 13 upper surface contact whetting a knife is installed to the lower extreme of weight holder 16, make weight holder 16 and whet a knife 13 between relative movement, reduce the horizontal resistance to whetting a knife 13, the pot head of weight holder 16 is equipped with detachable and is provided with weight 15, weight 15 is provided with the model of equidimension not, apply different weight on the weight holder 16, thereby change weight holder 16 to the pressure of whetting a knife 13, provide the different pressure of circuit board on the vice 8, test different data.

Example 2

In the scheme of embodiment 1, the driving structure preferably includes a motor 6, a cam 9 and a universal connecting rod 10, the motor 6 is horizontally fixed on the frame 1, the cam 9 is fixedly installed on an output shaft of the motor 6, the cam 9 is driven to rotate by the motor 6, the cam 9 is connected with a horizontal connecting rod 11 by the universal connecting rod 10, and the universal connecting rod 10 pulls the horizontal connecting rod 11 to horizontally reciprocate. The motor 6 is electrically connected with a motor controller 7 arranged on the control panel 2, the motor controller 7 controls the motor 6 to rotate, different rotating speeds of the motor 6 are adjusted, and the reciprocating frequency of the knife grinder 13 is changed.

Before the device works, the object to be measured 17 is fixed on the bench clamp 8. Then, the power switch 3 is turned on the control panel 2, the motor controller 7 is set, the start-stop button 5 is pressed, the motor 6 starts to rotate, and the device starts to operate. The motor 6 drives the cam 9, the cam 9 pulls the universal connecting rod 10 to move, the horizontal connecting rod 11 pulls the sharpener 13 to horizontally reciprocate, and due to the acting force of the weight 15, the sharpener 13 enables abrasive paper 14 on the sharpener 13 to reciprocate on the surface of the object to be measured 17 under a certain pressure when horizontally reciprocating, and the action realizes abrasion on the surface of the object to be measured 17.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A printed circuit board abrasion testing device comprises a rack (1), a control panel (2), a power switch (3), a buzzer (4) and a start-stop button (5); the power switch (3), the buzzer (4) and the start-stop button (5) are arranged on the control panel (2); the device is characterized in that a horizontal bench clamp (8) is arranged on the lower side of a rack (1), and an object to be measured (17) is clamped by the bench clamp (8); a sharpening (13) which reciprocates left and right in the horizontal direction is arranged above the bench clamp (8), and sand paper (14) facing the bench clamp (8) is detachably arranged on the sharpening (13); the weight holder (16) capable of being adjusted in height in the vertical direction is arranged above the knife sharpener (13), and weights (15) are detachably arranged on the upper end sleeve of the weight holder (16).

2. A printed circuit board wear test device according to claim 1, wherein: the left end of the knife sharpener (13) is fixedly connected with a horizontal connecting rod (11), and the horizontal connecting rod (11) penetrates through a horizontal connecting rod retainer (12) fixed on the rack (1).

3. A printed circuit board wear test device according to claim 2, wherein: the tail end of the horizontal connecting rod (11) is fixedly connected with a driving structure with the horizontal connecting rod (11) moving in a left-right reciprocating mode.

4. A printed circuit board wear test device according to claim 3, wherein: the driving structure comprises a motor (6), a cam (9) and a universal connecting rod (10), wherein the motor (6) is horizontally fixed on the rack (1), the cam (9) is fixedly installed on an output shaft of the motor (6), the cam (9) is connected with the horizontal connecting rod (11) through the universal connecting rod (10), the universal connecting rod (10) pulls the horizontal connecting rod (11) to do horizontal reciprocating motion, and the motor (6) is electrically connected with a motor controller (7) arranged on the control panel (2).

5. A printed circuit board wear test device of claim 4, wherein: and the lower end of the weight holder (16) is provided with a roller which is in contact with the upper surface of the knife grinder (13).