WO2022120812A1

WO2022120812A1 - Terminal material strip conductive coating crack detection device

Info

Publication number: WO2022120812A1
Application number: PCT/CN2020/135811
Authority: WO
Inventors: 查韶辉
Original assignee: 华擎智能科技(苏州)有限公司
Priority date: 2020-12-07
Filing date: 2020-12-11
Publication date: 2022-06-16
Also published as: CN112611802A

Abstract

A terminal material strip conductive coating crack detection device, comprising a base (1), a clamping mechanism, probes (8), and a detection device (9). The base (1) is provided with the clamping mechanism for driving the two probes (8) to be close to and distant from each other. The two probes (8) used for performing crack detection on a conductive coating are respectively an ultrasonic generating probe and an ultrasonic receiving probe. The two probes (8) are both electrically connected to the detection device (9) disposed on the base (1). According to the terminal material strip conductive coating crack detection device, by means of the cooperation of the probes (8), the detection device (9), and the clamping mechanism, the conductive coating on a terminal can be conveniently detected, and the detection result is accurate. A limiting mechanism is arranged to limit the reverse rotation of a rotating shaft (15), thereby preventing the terminal from falling off from the two probes (8).

Description

A terminal strip conductive coating crack detection equipment

technical field

The invention relates to a crack detection device, in particular to a terminal material strip conductive plating crack detection device.

Background technique

In electrical engineering, the terminal is multi-fingered terminal, also known as the terminal, the type is divided into single hole, double hole, socket, hook, etc., from the material points, copper silver plated, copper galvanized, copper, aluminum, iron, etc., their role Mainly used to transmit electrical signals or conduct electricity. In order to improve the conduction efficiency, the terminal is often provided with a conductive plating layer. When the conductive plating layer breaks, a short circuit is often generated, which affects the conduction efficiency. Therefore, it is often necessary to perform crack detection on the conductive plating layer on the terminal.

Nowadays, most of the visual display equipment is used to detect cracks on its surface. In this way, when the external light intensity is weak and the cracks are small, the detection results often have large errors, and for the cracks inside the conductive coating, only use Visual display devices cannot be detected.

technical solutions

The purpose of the present invention is to provide a terminal material strip conductive plating crack detection device to solve the above-mentioned problems in the background art.

To achieve the above object, the present invention provides the following technical solutions:

A terminal material strip conductive coating crack detection device, comprising a base, a clamping mechanism, a probe and a detection device; the base is provided with a clamping mechanism that drives two probes to approach and move away from each other; it is used for crack detection on a conductive coating The two probes are respectively an ultrasonic generating probe and an ultrasonic receiving probe; the two probes are electrically connected with the detection device arranged on the base.

As a further solution of the present invention: the clamping mechanism includes a rotating shaft, an incomplete gear, a movable plate, a connecting rod, an inner plate, an outer plate and a telescopic rod structure; the base is symmetrically provided with two rotating shafts, and the two rotating shafts Incomplete gears are fixed on both; the initial rotation angles of the two incomplete gears differ by half a circle; the two incomplete gears are respectively rotated and arranged in the openings of the two movable plates; the front and rear sides of the openings of the movable plates All are provided with toothed rods matched with the incomplete gears, and when the teeth at one end of the incomplete gears are in contact with the toothed rods on one side of the opening of the movable plate, the teeth at the other end of the incomplete gears are in contact with the teeth on the other side of the opening of the movable plate. The rods are just separated; connecting rods are fixed on the inner upper ends of the two movable plates, and the two connecting rods slide through the bar-shaped openings opened on the upper ends of the base, and are respectively fixed at the bottom of the outer plate; the outer plate passes through A plurality of symmetrically arranged telescopic rod structures are connected with the inner plate; the probe is arranged on the inner side of the inner plate; the driving mechanism for driving the two rotating shafts to rotate is arranged in the base.

As a further solution of the present invention: the shape of the probe is set as an inward semi-arc plate.

As a further solution of the present invention: the telescopic rod structure includes an outer plate, an inner plate, a first connecting rod, a second connecting rod, a third connecting rod, a fourth connecting rod, a slider, a spring, a sliding plate and a telescopic inner rod The inner side of the inner plate is fixed with a sliding plate through a plurality of telescopic inner rods, and the sliding plate is slidably arranged in the outer plate; the inner side of the outer plate is respectively hinged with one end of the first connecting rod and the second connecting rod; the The other ends of the first link and the second link are respectively hinged with one end of the fourth link and the third link, and the other ends of the first link and the second link are connected by a spring; the fourth link and the third connecting rod are hinged to each other, and the other ends of the fourth connecting rod and the third connecting rod are hinged on two sliding blocks respectively; The block and the outer side of the chute are connected by a spring.

As a further solution of the present invention: a plurality of inner positioning rods are symmetrically fixed on the outer side of the movable plate; a plurality of the inner positioning rods are respectively slidably arranged in the plurality of outer positioning rods, and the plurality of outer positioning rods are fixed on the base Inside.

As a further solution of the present invention: the drive mechanism includes a rotating shaft, a worm and a handle; turbines are fixed on one side of the bottom of the two rotating shafts; the two turbines are respectively matched with the two worms; The worms are all fixed on the rotating shaft; the rotating shaft is rotatably arranged in the base, and one end of the rotating shaft rotates through the side wall of the base and is connected with the handle.

As a further solution of the present invention: one side of the handle is further provided with a limit mechanism for restricting the rotation of the rotating shaft; the limit mechanism includes a ratchet, a limit rod, an L-shaped fixed rod and a return spring; the rotation A ratchet wheel is fixed on the shaft; a limit rod matched with the ratchet wheel is rotatably arranged on the outer side of the base; an L-shaped fixing rod that restricts the counterclockwise rotation of the limit rod is also fixed on the outer side of the base, and the L-shaped fixing rod is connected to the The limit rods are connected by a plurality of return springs.

beneficial effect

Compared with the prior art, the beneficial effects of the present invention are: through the cooperation of the probe, the detection device and the clamping mechanism, the conductive coating on the terminal can be easily detected, and the detection result is more accurate; Reverse rotation of the axis of rotation is restricted, preventing the terminal from falling out of both probes.

Description of drawings

Figure 1 is a schematic structural diagram of a terminal strip conductive coating crack detection device.

FIG. 2 is a schematic structural diagram of a clamping mechanism in a terminal strip conductive coating crack detection device.

FIG. 3 is a schematic structural diagram of a telescopic rod structure in a terminal strip conductive coating crack detection device.

FIG. 4 is a schematic structural diagram of a limiting mechanism in a terminal strip conductive coating crack detection device.

In the figure: 1, base; 2, shaft; 3, incomplete gear; 4, movable plate; 5, connecting rod; 6, outer plate; 7, inner plate; 8, probe; 9, detection device; 101, first connecting rod; 102, second connecting rod; 103, third connecting rod; 104, fourth connecting rod; 121, sliding block; 122, spring; 123, sliding plate; 11, telescopic inner rod; 13, inner positioning rod; 14 15, rotating shaft; 16, worm; 17, handle; 18, ratchet; 19, limit rod; 20, L-shaped fixed rod; 21, return spring.

Embodiments of the present invention

The technical solutions of the present invention will be described in further detail below in conjunction with specific embodiments.

Example 1

Referring to FIGS. 1-3 , this embodiment provides a terminal material strip conductive coating crack detection device, including a base 1, a clamping mechanism, a probe 8 and a detection device 9; the base 1 is provided with two probes 8 to drive Clamping mechanisms that are close to and away from each other; the two probes 8 used for crack detection on the conductive coating are respectively an ultrasonic generating probe and an ultrasonic receiving probe; the two probes 8 are connected with the detection device arranged on the base 1 9. Electrical connection; in this way, when it is necessary to perform crack detection on the conductive coating of the terminal, the clamping mechanism drives the two probes 8 to approach each other, so that the two probes 8 clamp the terminal. At this time, the ultrasonic generation probe emits ultrasonic waves, When there are defects such as pores, cracks and delaminations in the conductive coating, when the ultrasonic wave propagates to the interface between the metal and the defect, it will be reflected in whole or in part, and the reflected ultrasonic wave will be received by the ultrasonic receiving probe and pass through the circuit inside the detection device After processing, waveforms with different heights and a certain interval will be displayed on the fluorescent screen of the detection device 9, so that the depth, position and shape of the defect in the conductive coating can be judged according to the changing characteristics of the waveform.

Further, the clamping mechanism includes a rotating shaft 2, an incomplete gear 3, a movable plate 4, a connecting rod 5, an outer plate 6, an inner plate 7 and a telescopic rod structure; the base 1 is symmetrically provided with two rotating shafts 2, And the incomplete gears 3 are fixed on the two rotating shafts 2; the initial rotation angles of the two incomplete gears 3 differ by half a circle; the two incomplete gears 3 are respectively rotated and arranged in the openings of the two movable plates 4. ; The front and rear sides of the opening of the movable plate 4 are provided with a toothed rod that matches the incomplete gear 3, and when the teeth at one end of the incomplete gear 3 are in contact with the toothed rod on the opening side of the movable plate 4, the incomplete gear 3 The teeth at the other end are just separated from the toothed rods on the other side of the opening of the movable plate 4; connecting rods 5 are fixed on the inner upper ends of the two movable plates 4, and the two connecting rods 5 slide through the opening on the base 1. The strip-shaped opening at the upper end is respectively fixed on the bottom of the outer plate 6; the outer plate 6 is connected with the inner plate 7 through a plurality of symmetrically arranged telescopic rod structures; the probe 8 is arranged on the inner side of the inner plate 7; The drive mechanism for the rotation of the rotating shaft 2 is arranged in the base 1 . In this way, when the driving mechanism drives the two rotating shafts 2 to rotate, since the initial rotation angles of the two incomplete gears 3 differ by half a circle, the two movable plates 4 will move inward, thereby driving the outer plate 6 and the inner plate 7 to move toward the opposite direction. Inward movement, thereby driving the two probes 8 to move inward and clamp the terminals.

Further, in order to clamp the terminal, the shape of the probe 8 is set as an inward semi-arc plate.

Further, in order to prevent the two probes 8 from exerting excessive pressure on the terminal, resulting in damage to the terminal structure, the telescopic rod structure includes an outer plate 6, an inner plate 7, a first link 101, a second link 102, a first link The third link 103 , the fourth link 104 , the slider 121 , the spring 122 , the sliding plate 123 and the telescopic inner rod 11 ; the inner side of the inner plate 7 is fixed with a sliding plate 123 through a plurality of telescopic inner rods 11 , and the sliding plate 123 is slidably arranged Inside the outer plate 6; one end of the first link 101 and the second link 102 are hinged on the inner side of the outer plate 6; the other ends of the first link 101 and the second link 102 are respectively connected with the first link 101 and the second link 102. One end of the fourth link 104 and the third link 103 are hinged, and the other ends of the first link 101 and the second link 102 are connected by a spring 122; the fourth link 104 and the third link 103 are hinged to each other, And the other ends of the fourth connecting rod 104 and the third connecting rod 103 are hinged on the two sliding blocks 121 respectively; The outer sides of the chute are connected by springs 122 .

Further, in order to make the two movable plates 4 more stable during the movement process, a plurality of inner positioning rods 13 are symmetrically fixed on the outer side of the movable plates 4; inside the rod 14, and a plurality of outer positioning rods 14 are fixed in the base 1; in this way, through the cooperation of the inner positioning rod 13 and the outer positioning rod 14, the movable plate 4 can be positioned, so that it is more stable during the movement. .

The driving mechanism includes a rotating shaft 15, a worm 16 and a handle 17; the bottom side of the two rotating shafts 2 are fixed with turbines; the two turbines are respectively matched with the two worms 16; the two worms 16 are fixed on the rotating shaft 15; the rotating shaft 15 is rotatably arranged in the base 1, and one end of the rotating shaft 15 rotates through the side wall of the base 1 and is connected with the handle 17; At this time, the two worms 16 are driven to rotate by the rotating shaft 15, so that the two rotating shafts 2 are driven to rotate by the turbine.

The working principle of this embodiment is: when it is necessary to perform crack detection on the conductive coating of the terminal, the clamping mechanism drives the two probes 8 to approach each other, so that the two probes 8 clamp the terminal. At this time, the ultrasonic generating probe emits ultrasonic waves, When there are defects such as pores, cracks and delaminations in the conductive coating, when the ultrasonic wave propagates to the interface between the metal and the defect, it will be reflected in whole or in part, and the reflected ultrasonic wave will be received by the ultrasonic receiving probe and pass through the circuit inside the detection device After processing, waveforms with different heights and a certain interval will be displayed on the fluorescent screen of the detection device 9, so that the depth, position and shape of the defect in the conductive coating can be judged according to the changing characteristics of the waveform.

Among them, the working principle of the clamping mechanism is that when the worker turns the handle 17, the two worms 16 are driven to rotate through the rotating shaft 15, thereby driving the two rotating shafts 2 to rotate through the turbine. Due to the initial rotation of the two incomplete gears 3 The angle differs by half a circle, so that the two movable plates 4 will move inward, thereby driving the inner plate 6 and the outer plate 7 to move inward, thereby driving the two probes 8 to move inward, and clamp the terminals.

Example 2

Referring to FIG. 4 , this embodiment is further improved on the basis of Embodiment 1. The improvement is: in order to prevent the rotating shaft 15 from reversing and causing the terminal to fall, one side of the handle 17 is also provided with a limiting rotating shaft 15 Reversed limit mechanism; the limit mechanism includes a ratchet wheel 18, a limit rod 19, an L-shaped fixed rod 20 and a return spring 21; a ratchet wheel 18 is fixed on the rotating shaft 15; The limit rod 19 is rotatably arranged on the outer side of the base 1; the outer side of the base 1 is also fixed with an L-shaped fixing rod 20 that restricts the counterclockwise rotation of the limit rod 19, and the L-shaped fixing rod 20 and the limit rod 19 They are connected by a plurality of return springs 21 .

The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the above-mentioned embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art, various aspects can also be made without departing from the purpose of the present invention. kind of change.

Claims

A terminal material strip conductive coating crack detection device, characterized in that it comprises a base (1), a clamping mechanism, a probe (8) and a detection device (9); the base (1) is provided with two probes ( 8) Clamping mechanisms that are close to and away from each other; the two probes (8) used for crack detection on the conductive coating are respectively an ultrasonic generating probe and an ultrasonic receiving probe; The detection device (9) on the base (1) is electrically connected.
The device for detecting cracks in the conductive plating layer of the terminal material strip according to claim 1, wherein the clamping mechanism comprises a rotating shaft (2), an incomplete gear (3), a movable plate (4), a connecting rod (5), The outer plate (6), the inner plate (7) and the telescopic rod structure; the base (1) is symmetrically provided with two rotating shafts (2), and the two rotating shafts (2) are both fixed with incomplete gears (3) ; The initial rotation angle of the two incomplete gears (3) differs by half a circle; the two incomplete gears (3) are respectively rotated and arranged in the openings of the two movable plates (4); the movable plates (4) ) are provided with tooth rods matching with the incomplete gear (3) on the front and rear sides of the opening, and when the teeth at one end of the incomplete gear (3) are in contact with the tooth rod on the opening side of the movable plate (4), the incomplete gear (3) The teeth at the other end are just separated from the toothed rods on the other side of the opening of the movable plate (4); connecting rods (5) are fixed on the inner upper ends of the two movable plates (4), and the two connecting rods (5) Both slide through the bar-shaped opening opened at the upper end of the base (1), and are respectively fixed at the bottom of the outer plate (6); the outer plate (6) is connected to the inner plate ( 7) Connected; the probe (8) is arranged on the inner side of the inner plate (7); the driving mechanism for driving the rotation of the two rotating shafts (2) is arranged in the base (1).
The device for detecting cracks in conductive plating of terminal material strips according to claim 1, characterized in that, the shape of the probe (8) is set as an inward semi-arc plate.
The device for detecting cracks in the conductive coating of the terminal material strip according to claim 2, wherein the telescopic rod structure comprises a first connecting rod (101), a second connecting rod (102), a third connecting rod (103), The fourth connecting rod (104), the slider (121), the spring (122), the sliding plate (123) and the telescopic inner rod (11); the inner side of the inner plate (7) is fixed by a plurality of telescopic inner rods (11) There is a sliding plate (123), and the sliding plate (123) is slidably arranged in the outer plate (6); the inner side of the outer plate (6) is hinged with the first connecting rod (101) and the second connecting rod (102) respectively. one end; the other ends of the first connecting rod (101) and the second connecting rod (102) are respectively hinged with one end of the fourth connecting rod (104) and the third connecting rod (103), and the first connecting rod (101 ) and the other end of the second link (102) are connected by a spring (122); the fourth link (104) and the third link (103) are hinged to each other, and the fourth link (104) and the third link The other ends of the connecting rods (103) are hinged on the two sliding blocks (121) respectively; It is connected with the outer side of the chute through a spring (122).
The device for detecting cracks in the conductive plating layer of the terminal material strip according to claim 2, characterized in that, a plurality of inner positioning rods (13) are symmetrically fixed on the outer side of the movable plate (4); a plurality of the inner positioning rods (13) ) are respectively slidably arranged in the plurality of outer positioning rods (14), and the plurality of outer positioning rods (14) are fixed in the base (1).
The device for detecting cracks in the conductive plating layer of a terminal material strip according to claim 2, wherein the driving mechanism comprises a rotating shaft (15), a worm (16) and a handle (17); Turbines are fixed on one side of the bottom; the two worms are matched with two worms (16) respectively; the two worms (16) are both fixed on the rotating shaft (15); the rotating shaft (15) rotates It is arranged in the base (1), and one end of the rotating shaft (15) rotates through the side wall of the base (1) and is connected with the handle (17).
The device for detecting cracks in the conductive plating layer of the terminal material strip according to claim 6, characterized in that, a limit mechanism for limiting the rotation of the rotating shaft (15) is further provided on one side of the handle (17); the limit mechanism Including a ratchet (18), a limit rod (19), an L-shaped fixing rod (20) and a return spring (21); a ratchet (18) is fixed on the rotating shaft (15); The cooperating limit rod (19) is rotatably arranged on the outer side of the base (1); an L-shaped fixing rod (20) that restricts the counterclockwise rotation of the limit rod (19) is also fixed on the outside of the base (1), and the L-shaped fixing rod (20) is also fixed on the outer side of the base (1). The fixed rod (20) and the limit rod (19) are connected by a plurality of return springs (21).