CN216816503U - Circuit board through hole re-judging and maintaining equipment - Google Patents

Abstract

The utility model provides a through hole re-judging and maintaining device of a circuit board, which comprises: a machine table; the light table is arranged on the machine table and is provided with a table top capable of generating brightness; the fixing unit is arranged on the light table and comprises a fixing edge, at least two supporting pieces, a movable edge and a plurality of guide rails, the guide rails are arranged on the table top in the direction perpendicular to the fixing edge, the supporting pieces and the movable edge are partially arranged on the guide rails and can move along the guide rails, and the supporting pieces are positioned between the fixing edge and the movable edge and can bear a circuit board, so that the circuit board is elevated above the table top; a projection pointing unit capable of projecting at least one indication pattern onto the circuit board; and the host is arranged in the machine table and controls the projection pointing unit to operate, so that the through hole in the circuit board arranged above the light table can be quickly checked or maintained.

Description

Circuit board through hole re-judging and maintaining equipment

Technical Field

The utility model relates to the technical field of circuit board inspection equipment, in particular to a design for inspecting or maintaining a through hole on a circuit board.

Background

The circuit board is an indispensable component in products such as electronics, computers, communication and the like, and the high-order circuit board uses a large number of through holes and is matched with subsequent processing, so that the circuit is complex and dense, and finally the products meet the requirements of lightness, thinness, shortness and smallness in the market.

When a plurality of through holes of a large number of circuit boards are processed, mechanical Automatic Optical Inspection (AOI) is generally used for preliminary Inspection, although the AOI mode has high efficiency, AOI Inspection depends on a defective product determination algorithm, AOI cannot be completely applicable to each structure Inspection due to the limitation of the algorithm, if defective products are generated, some of the defective products are still subjected to re-judgment or maintenance for manual visual Inspection, so that the error is reduced, material waste is avoided, and profit can be increased.

Manual visual inspection is generally performed on a light table, which is a visual inspection table equipped with a light source. Because the size of the circuit board is smaller and smaller, the number and the size of the through holes are finer and finer, an operator usually needs to watch the display screen connected with the database, the display screen knows the position of the suspected defect through hole, then the operator transfers the sight to the circuit board to find the position of the suspected defect through hole, and the operator is matched with the brightness generated by the light table to judge whether the fault exists, if the maintenance is needed, the circuit board needs to be moved out of the light table, so that the surface of the light table is prevented from being damaged carelessly when a tool directly penetrates through the through hole, the operation mode is time-consuming and labor-consuming, the rechecking operation efficiency is poor, or the tool with the wrong aperture is taken, and the repair can be directly changed into damage.

SUMMERY OF THE UTILITY MODEL

The main objective of the present invention is to provide a device for re-judging and repairing through holes of a circuit board, which can arrange the circuit board above a light table in an elevated manner, and project a mark pattern on the circuit board in cooperation with the operation of a projection indication unit, so that an operator can quickly confirm the position of a suspected defect through hole and then perform re-judgment or repair, thereby shortening the operation time and improving the re-inspection efficiency and quality.

The utility model relates to a through hole re-judging and maintaining device of a circuit board, which comprises: a machine table; the light table is arranged on the machine table and is provided with a table top capable of generating brightness; the elevating unit is arranged on the light table and comprises a fixed edge, at least two supporting pieces, a movable edge and a plurality of guide rails, the guide rails are arranged on the table top in a direction perpendicular to the fixed edge, the supporting pieces and the movable edge are partially arranged on the guide rails and can slide along the guide rails, and the supporting pieces are positioned between the fixed edge and the movable edge and can bear a circuit board, so that the circuit board is elevated above the table top; a projection pointing unit located above the light table and capable of projecting at least one indication pattern onto the circuit board; and the host is arranged in the machine table and controls the operation of the projection pointing unit.

As a preferred embodiment, the display device further comprises a display screen and an input interface unit, the display screen and the input interface unit are connected to the host, the input interface unit is at least one of a keyboard, a mouse, a touch control panel and a bar code scanner, the input interface unit inputs circuit board data into the host, and the host controls the display screen or the projection pointing unit to generate a corresponding response.

In a preferred embodiment, the guide rail is disposed adjacent to the edge of the tabletop, the guide rail is a circular shaft with two ends connected to the fixing seats, the fixing seats are disposed on the tabletop, the supporting member has two ends provided with axle seats, the movable edge has two ends provided with sliding seats, and the guide rail penetrates through the axle seats and the sliding seats, so that the supporting member and the movable edge can be adjusted to the position on the tabletop.

In a preferred embodiment, the fixed edge is provided with a first holding member in an L shape, which can be used as a reference positioning point when a corner of the circuit board abuts against the first holding member, and the movable edge is provided with a second holding piece in an L shape, which can clamp the circuit board between the first holding member and the second holding member.

In a preferred embodiment, the projection pointing unit is capable of projecting a display pattern for displaying information on a tool to be serviced.

As a preferred embodiment, the optical desk further comprises a tool indicator board, the tool indicator board is disposed on the optical desk, and the projection pointing unit projects a display pattern on the tool indicator board.

As a preferred embodiment, the light table is pivoted to the top of the machine table, and a height adjusting structure is disposed on the other side of the top of the machine table away from the pivoting position, so that the tilt angle of the light table can be adjusted.

As a preferred embodiment, the height adjusting structure includes a plurality of positioning slots and at least one adjusting rod, the positioning slots are located at the top of the machine, the adjusting rod is pivoted to the bottom of the light table, and when the adjusting rod is locked in one of the positioning slots, the tilt angle of the light table can be maintained.

In a preferred embodiment, the machine further has an extension platform for placing the input interface unit or the maintenance tool.

As a preferred embodiment, the machine platform is provided with a support extending upward, and the projection directing unit is disposed on the support and located above the light table.

Compared with the prior art, the through hole re-judging and maintaining equipment for the circuit board has the following specific effects:

1. the indication pattern projected by the projection indication unit can be used for an operator to quickly confirm the position of the suspected defect through hole on the circuit board, so that the searching time is shortened, and the inspection operation is convenient to carry out.

2. The elevating unit bears the circuit board above the desktop, and if the through hole is required to be maintained, the circuit board can be maintained by directly using a tool, so that the desktop is not damaged, and the operation is fast and convenient.

3. The display pattern projected by the projection indicating unit can enable an operator to know the size or the type of a tool to be used, and avoid the occurrence of an error which cannot be recovered due to the use of a wrong large-size tool; moreover, the head can be not raised in the process, only the display pattern displayed by the tool indicating plate is observed, the operation flow can be simplified, and the operation is more correct, smooth and rapid.

4. The through hole re-judgment maintenance equipment for the circuit board can shorten the time for searching the suspected defect through hole, improve the accuracy, shorten the re-judgment operation time, quickly and correctly obtain tool information during maintenance, simplify the operation process, improve the overall operation quality and efficiency and increase the overall profit.

Drawings

Fig. 1 is a perspective view of the through hole re-judging and maintaining device for a circuit board of the present invention.

Fig. 2 is a side view of the through hole re-judgment and maintenance device for the circuit board of the present invention.

FIG. 3 is a schematic diagram of the circuit board through hole re-judgment and maintenance device according to the present invention.

Fig. 4 is an operation side view of the through hole re-judgment and repair apparatus for a circuit board according to the present invention.

Description of reference numerals:

1-a machine platform;

11-a caster;

12-adjusting feet;

14-a height adjustment structure;

141-a positioning groove;

142-an adjusting rod;

15-a scaffold;

16-an extension platform;

2-a light table;

21-a desktop;

211 — work frame area;

22-a switch;

3-an elevating unit;

31-a fixed edge;

312 — a first holder;

32-a support member;

321-shaft seat;

33-a movable edge;

332-a second holder;

333-sliding seat;

34-a guide rail;

341-fixed seat;

4-a projection pointing unit;

41-indication pattern;

42-display of a design;

5-a host;

6-tool indicator board;

7-a display screen;

8-an input interface unit;

9-a circuit board;

91-through hole.

Detailed Description

The technical solution of the present invention will be clearly and completely described below with reference to the specific embodiments and the accompanying drawings. It will be understood that when an element is referred to as being "mounted on" or "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. In the illustrated embodiment, the directions indicate that up, down, left, right, front, rear, and the like are relative, and are used to explain that the structures and movements of the various components are relative in this case. These representations are appropriate when the components are in the positions shown in the figures. However, if the specification of the component location changes, it is assumed that these representations will change accordingly.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Fig. 1 and 2 show a perspective view and a side view of the through hole re-judging and repairing apparatus for a circuit board according to the present invention. The utility model relates to a circuit board through hole re-judgment and maintenance device, which comprises a machine table 1, an optical table 2, an elevating unit 3, a projection pointing unit 4 and a host 5. The light table 2 is carried by the machine table 1, and the light table 2 has a table top 21 capable of generating brightness. The elevating unit 3 is disposed on the light table 2, and includes a fixed edge 31, at least two supporting members 32, a movable edge 33, and a plurality of guide rails 34, the guide rails 34 are disposed on the table top 21 in a direction perpendicular to the fixed edge 31, the supporting members 32 and the movable edge 34 are partially disposed on the guide rails 34 and can move along the guide rails 34, the supporting members 32 are disposed between the fixed edge 31 and the movable edge 33 and can carry a circuit board, so that the circuit board is elevated above the table top 21. The projection pointing unit 4 is disposed above the light table 2 and can project at least one indication pattern on the circuit board. The host 5 is arranged in the machine table 1 and is responsible for controlling the operation of the projection pointing unit 4; therefore, when the circuit board is placed on the supporting members 32, the two sides of the circuit board are clamped and positioned at the correct positions by the fixed edges 31 and the movable edges 33, the projection directing unit 4 projects an indication pattern at the through hole position on the circuit board, and the operator can clearly observe the through hole state such as through, local through or non-through by matching with the brightness generated by the table top 21.

The structure of each component will be described in detail as follows:

the machine table 1 is a hollow three-dimensional frame for supporting the light table 2. The bottom of the machine table 1 is provided with a plurality of casters 11 and a plurality of adjusting feet 12. The caster 11 can facilitate moving the machine 1. After the movement, the adjusting leg 12 is rotated to extend to avoid the machine 1 from moving freely. The light table 2 may be fixed or adjustable on the top of the machine table 1. For example, the light table 2 can be tilted at an angle, which is convenient for the operator to check the circuit board. In the embodiment, the adjustable type light table 2 is pivotally connected to the top of the machine table 1 at one side of the bottom thereof, and a height adjusting structure 14 is disposed at the other side away from the pivotal connection. The height adjustment structure 14 can be in various forms, in this embodiment, the height adjustment structure 14 includes a plurality of positioning slots 141 and at least one adjustment rod 142, the positioning slots 141 are sequentially disposed on the top of the machine 1, and in this embodiment, two sets of positioning slots 141 are disposed on the top of the machine 1 and are parallel to each other. The adjusting rod 142 is U-shaped and pivotally connected to the bottom of the light table 2, and when the U-shaped cross rod of the adjusting rod 142 is locked in one of the positioning slots 141, the tilt angle of the light table 2 can be maintained.

The light table 2 is provided with a table top 21 with a light-emitting surface facing upwards and with a switch 22 for activation or deactivation. The structure of the light table 2 is provided with a light source inside and is matched with a light-permeable table top board. In the embodiment, the table top 21 is a rectangle, and the main light-emitting area is the work frame area 211 with a smaller range, which is suitable for various circuit boards with different sizes.

The elevating unit 3 is responsible for positioning the circuit board above the table top 21 in an elevating manner during operation, so as to facilitate subsequent inspection or maintenance of the through hole. The elevating unit 3 comprises a fixed edge 31, at least two supporting members 32, a movable edge 33 and a plurality of guide rails 34. The fixed edge 31 is a strip that is positioned and secured to one side of the table top 21, such as the right side in fig. 1. The fixing edge 31 is further provided with an L-shaped first holding member 312 at one end, and the first holding member 312 is located close to the operator, and also has a function as a positioning reference point when the circuit board abuts against the first holding member 312. The rails 34 are disposed adjacent to the edges of the table top 21, in practice two in number and disposed on two opposite sides of the table top 21, specifically between the edges of the table top 21 and the work frame area 211. In the embodiment, the guide rail 34 is a circular shaft, and two ends of the circular shaft are respectively connected with the fixing seats 341 and are disposed on the tabletop 21. The guide rail 34 is disposed in a direction perpendicular to the fixed edge 31. The supporting member 32 is a round rod, two ends of the supporting member are provided with axle seats 321, and the guide rail 34 penetrates through the axle seats 321, so that the supporting member 32 can move left and right to adjust the position. The movable edge 33 is also a strip, oriented parallel to the fixed edge 31. The movable edge 33 is also provided with a second L-shaped retaining member 332 at one end, and the first retaining member 312 and the second retaining member 332 are symmetrical to each other. The two ends of the movable edge 33 are provided with sliding seats 333, and the guide rail 34 penetrates through the sliding seats 333, so that the position of the movable edge 33 on the tabletop 21 can be adjusted. The circuit board is placed on the two supporting members 32, and the two sides of the circuit board are clamped by the fixed edge 31 and the movable edge 33, and the first retaining member 312 and the second retaining member 332 can also clamp the circuit board to prevent the circuit board from sliding and adjust to the correct reference point position.

The projection pointing unit 4 is a projection device, and is controlled by the host 5 to project at least one indication pattern at a through hole position on the circuit board. The indication pattern may be a light spot, an arrow, a circle, or other pattern. The projection directing unit 4 is located above the light table 2, and in this embodiment is disposed at the support 15 extending upward from the machine table 1, but when the tilt angle of the light table 2 is adjusted, the host 5 will also correct the relative data to project the projection directing unit 4 at the correct position. Of course, the projection directing unit 4 can be disposed on a bracket extending from the light table 2 instead, which can improve the problem that the parameters need to be changed when the angle of the light table 2 is changed.

The utility model relates to a circuit board rechecking operation device, which is used for distinguishing good products or defective products from a large batch of circuit boards through early-stage inspection operation and then rechecking or repairing through holes of the circuit boards in the defective products, so that the loss is reduced and the profit is increased. The position data of the related defect via can be transmitted to the host 5 through the remote database, and the host 5 drives the projection pointing unit 4 to operate.

In addition, the present invention further includes a knife indicator plate 6, the knife indicator plate 6 is located on the light table 2, and the knife indicator plate 6 is disposed on the first holder 312 in this embodiment. The projection directing unit 4 can project a display pattern, in this embodiment, the display pattern is projected on the tool indicator board 6, the display pattern can display the model or size of a tool to be maintained, the tool can be a tool, a drill or a poking needle, for example, the display pattern can be matched with the preset size of a through hole to directly display the aperture, so that an operator can directly maintain the tool with the relative size after confirming the position and the defect state of the through hole, and the maintenance time and the error opportunity are shortened. Of course, the display pattern can also be projected to other positions of the light table 2, but this position must be easily visible to the operator.

The operation and the input of relevant information of the circuit board are convenient. The utility model also comprises a display screen 7 and an input interface unit 8, wherein the display screen 7 and the input interface unit 8 are connected with and controlled by the host 5. The display screen 7 is arranged on the support 15 and above the light table 2, so that the user can conveniently look up. The input interface unit 8 is at least one of a keyboard, a mouse, a touch control panel and a bar code scanner, the input interface unit 8 inputs circuit board data into the host 5, and the host 5 controls the display screen 7 or the projection pointing unit 4 to generate corresponding response. In addition, an extension platform 16 is further disposed on the machine platform 1 toward the operator, and the extension platform 16 can carry the input interface unit 8 or other tools for repairing the circuit board.

Fig. 3 and 4 are schematic views showing practical use of the present invention. The circuit board 9 is placed on the two supporting members 32, and the positions of the supporting members 32 are adjusted to avoid the positions of the through holes 91, so that one corner of the circuit board 9 abuts against the first retaining member 312, and the two sides of the circuit board 9 are clamped by the fixed side 31 and the movable side 33, and the circuit board 9 is located at the correct position. The basic data of the circuit board 9 is input by using the input interface unit 8, the host 5 further obtains the position information of the through hole 91 of the circuit board 9 to be rechecked through a remote database, and then controls the projection indication unit 4 to project an indication pattern 41, wherein the indication pattern 41 is an arrow in the embodiment, the optical table 2 is started to light the table top 21, so that an operator can clearly see the situation in the through hole 91, and if the operator needs to repair, the display pattern 42 displayed on the cutter indication board 6 can be watched, the display pattern 42 is phi-10 in the embodiment, and then a tool with a correct size is used for repairing, so that the inspection operation is simpler and faster, the error rate is reduced, and the efficiency and the quality of the rechecking operation are greatly improved.

While the preferred embodiments of the present invention have been described, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the utility model as defined in the following claims.

Claims (10)

1. The utility model provides a maintenance of equipment is reevaluated to circuit board through-hole which characterized in that includes:

a machine table;

a light table arranged on the machine table and provided with a table top capable of generating brightness;

the elevating unit is arranged on the light table and comprises a fixed edge, at least two supporting pieces, a movable edge and a plurality of guide rails, the guide rails are arranged on the table top in a direction perpendicular to the fixed edge, the supporting pieces and the movable edge are partially arranged on the guide rails and can slide along the guide rails, and the supporting pieces are positioned between the fixed edge and the movable edge and can bear a circuit board, so that the circuit board is elevated above the table top;

a projection pointing unit located above the light table and capable of projecting at least one indication pattern onto the circuit board;

and the host is arranged in the machine table and controls the operation of the projection pointing unit.

2. The apparatus of claim 1, further comprising a display screen and an input interface unit, wherein the display screen and the input interface unit are connected to the host, the input interface unit is at least one of a keyboard, a mouse, a touch panel, and a bar code scanner, the input interface unit inputs the circuit board data into the host, and the host controls the display screen or the projection pointing unit to generate a corresponding response.

3. The apparatus for repairing and repairing a through hole of a circuit board of claim 1, wherein the guiding rail is disposed adjacent to the edge of the table top, the guiding rail is formed by connecting two ends of a circular shaft to fixing bases, the fixing bases are disposed on the table top, two ends of the supporting member are provided with shaft bases, two ends of the movable edge are provided with sliding bases, and the guiding rail penetrates through the shaft bases and the sliding bases, so that the supporting member and the movable edge can be adjusted to positions on the table top.

4. The apparatus for repairing and repairing a through hole of a circuit board according to claim 1, wherein the fixed edge is provided with a first L-shaped retaining member, which is used as a reference positioning point when a corner of the circuit board abuts against the first retaining member, and the movable edge is further provided with a second L-shaped retaining piece, which is capable of clamping the circuit board between the first retaining member and the second retaining member.

5. The apparatus of claim 1, wherein the projection pointing unit is capable of projecting a display pattern, the display pattern being information of a tool to be maintained.

6. The apparatus for repairing a through hole of a circuit board of claim 5, further comprising a tool indicator board disposed on the light table, wherein the projection pointing unit projects the display pattern on the tool indicator board.

7. The apparatus for rechecking and repairing the through holes of a printed circuit board as claimed in claim 1, wherein the light table is pivotally connected to the top of the machine, and a height adjustment structure is disposed on the other side of the top of the machine away from the pivotally connected portion to enable the light table to adjust the tilt angle.

8. The apparatus of claim 7, wherein the height adjustment structure comprises a plurality of positioning slots and at least one adjustment rod, the positioning slots are located at the top of the platform, the adjustment rod is pivotally connected to the bottom of the light table, and when the adjustment rod is locked in one of the positioning slots, the tilt angle of the light table can be maintained.

9. The apparatus for through hole re-judgment and maintenance of circuit board as claimed in claim 1, wherein the machine further comprises an extending platform.

10. The apparatus for repairing a through hole of a circuit board of claim 1, wherein the platform has a support extending upward, and the projection pointing unit is disposed on the support such that the projection pointing unit is located above the light table.

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