CN215598258U

CN215598258U - Printed circuit board pin height test equipment

Info

Publication number: CN215598258U
Application number: CN202121461669.2U
Authority: CN
Inventors: 王万仓; 苏丽飞; 张朝阳
Original assignee: Lanto Electronic Ltd
Current assignee: Lanto Electronic Ltd
Priority date: 2021-06-29
Filing date: 2021-06-29
Publication date: 2022-01-21
Anticipated expiration: 2031-06-29

Abstract

The utility model relates to the field of printed circuit board manufacturing, in particular to a device for testing the height of pins of a printed circuit board. According to the printed circuit board pin height testing equipment provided by the embodiment of the utility model, the support and the mounting frame are arranged, and the mounting baffle is arranged in the gap between the first support and the second support, so that the printed circuit board can be tested when being conveyed forwards from the lower part of the baffle, and if the pin height on the printed circuit board does not meet the requirement, the printed circuit board can be blocked by the baffle, so that automatic testing is realized, manual testing is replaced, manpower is saved, and the problem that the testing accuracy is influenced by subjective factors is solved.

Description

Printed circuit board pin height test equipment

Technical Field

The utility model relates to the field of printed circuit board manufacturing, in particular to a device for testing the height of pins of a printed circuit board.

Background

Along with the development of science and technology and the progress of society, the application of electronic products is more and more extensive, and in most electronic products, a printed circuit board is required to be used, the printed circuit board can replace complex wiring, and the electrical connection among elements in the circuit is realized, so that the assembly and welding work of the electronic products is simplified, the wiring workload in the traditional mode is reduced, and the labor intensity of workers is greatly reduced; and the volume of the whole machine is reduced, the product cost is reduced, and the quality and the reliability of the electronic equipment are improved. In the production process of the printed circuit board, the pin heights of various parts mounted on the printed circuit board need to be tested to meet the requirements, and the conventional testing method is to manually operate a tool with a metal slide bar to enable the metal slide bar to be scratched from the printed circuit board at a set height and manually judge whether the pins contact the metal slide bar to determine whether the pin heights meet the requirements or not. However, the method is not only labor-consuming, but also affects the accuracy of the test due to the need of human subjective judgment, and causes unqualified products to flow into the subsequent production process.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention provides a printed circuit board pin height testing apparatus without manual operation, which reduces the waste of manpower and improves the testing accuracy.

The embodiment of the utility model provides a printed circuit board pin height testing device, which comprises: the bracket is vertically arranged and comprises a first bracket and a second bracket, and the first bracket and the second bracket are arranged at intervals; the mounting rack is mounted at the top of the support and is fixedly connected with the first support and the second support respectively; a baffle mounted on the mounting bracket and located in the space between the first and second brackets.

Further, the mounting bracket includes: and the mounting column is arranged in a gap between the first support and the second support, and the baffle is mounted on the mounting column.

Further, the apparatus further comprises: the baffle passes through moving mechanism installs on the erection column, moving mechanism includes guide rail and slider, the guide rail fixed mounting be in on the erection column, and set up along vertical direction, slider slidable mounting be in on the guide rail, the baffle with slider fixed connection.

Further, the apparatus further comprises: the adjusting screw rod penetrates through the mounting rack along the vertical direction and is in threaded connection with the mounting rack; the connecting piece is rotatably installed at the bottom end of the adjusting screw rod and is fixedly connected with the baffle plate, and the connecting piece is configured to move along with the adjusting screw rod so as to drive the baffle plate to move.

Further, the apparatus further comprises: and the handheld part is fixedly arranged at the top end of the adjusting screw rod.

Furthermore, scale marks are marked on the adjusting screw rod.

Further, the apparatus further comprises: and the locking structure is sleeved on the adjusting screw rod and fixedly installed at the top of the mounting frame and used for locking the adjusting screw rod so that the relative position of the adjusting screw rod and the mounting frame is kept fixed.

Further, the baffle includes: the mounting plate is mounted on the mounting frame, and a plurality of mounting holes are formed in the mounting plate; and the number of the separation blades is more than or equal to 1, the separation blades are detachably arranged on the mounting plate through the mounting holes respectively, and the bottom edges of the separation blades are lower than that of the mounting plate.

Furthermore, a lifting groove is formed in the blocking piece, extends in the vertical direction and is used for being matched with the mounting hole to adjust the mounting height of the blocking piece.

Furthermore, a guide groove is formed in the top of the second support, the extending direction of the guide groove is parallel to the connecting line direction of the first support and the second support, and the mounting frame is detachably and fixedly connected with the second support through the guide groove.

According to the printed circuit board pin height testing equipment provided by the embodiment of the utility model, the support and the mounting frame are arranged, and the mounting baffle is arranged in the gap between the first support and the second support, so that the printed circuit board can be tested when being conveyed forwards from the lower part of the baffle, and if the pin height on the printed circuit board does not meet the requirement, the printed circuit board can be blocked by the baffle, so that automatic testing is realized, manual testing is replaced, manpower is saved, and the problem that the testing accuracy is influenced by subjective factors is solved.

Drawings

The above and other objects, features and advantages of the present invention will become more apparent from the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:

FIG. 1 is a schematic diagram of an overall structure of a printed circuit board pin height testing apparatus according to an embodiment of the present invention;

FIG. 2 is an exploded view of the overall structure of the pin height testing apparatus of the PCB according to the embodiment of the present invention;

fig. 3 is an exploded view of the whole structure of the pin height testing apparatus of the printed circuit board according to the embodiment of the utility model.

Legend: 1. a support; 11. a first bracket; 12. a second bracket; 121. a guide groove; 2. a mounting frame; 21. mounting a column; 3. a baffle plate; 31. mounting a plate; 311. mounting holes; 32. a baffle plate; 321. a lifting groove; 4. a moving mechanism; 41. a guide rail; 42. a slider; 5. adjusting the lead screw; 51. a connecting portion; 6. a connecting member; 7. a hand-held portion; 8. and a locking structure.

Detailed Description

The present invention will be described below based on examples, but the present invention is not limited to only these examples. In the following detailed description of the present invention, certain specific details are set forth. It will be apparent to one skilled in the art that the present invention may be practiced without these specific details. Well-known methods, procedures, components and circuits have not been described in detail so as not to obscure the present invention.

Further, those of ordinary skill in the art will appreciate that the drawings provided herein are for illustrative purposes and are not necessarily drawn to scale.

Unless the context clearly requires otherwise, throughout the description, the words "comprise", "comprising", and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is, what is meant is "including, but not limited to".

In the description of the present invention, it is to be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

As shown in fig. 1 to 3, the printed circuit board pin height testing apparatus according to the embodiment of the present invention includes a support 1, a mounting frame 2, and a barrier 3. Wherein, support 1 is vertical setting, and includes first support 11 and second support 12, and first support 11 and second support 12 interval set up. The mounting frame 2 is arranged on the top of the bracket 1 and is fixedly connected with the first bracket 11 and the second bracket 12 respectively. The baffle 3 is mounted on the mounting frame 2 in the space between the first bracket 11 and the second bracket 12. During the test, pass printed circuit board from baffle 3 below level, if the pin height on the printed circuit board satisfies the requirement, then can pass through smoothly, if the pin height on the printed circuit board is too high, then can be blocked by baffle 3, can not pass through the test. Specifically, the printed circuit board to be tested is placed on a forward-conveying assembly line conveyor, such as a belt conveyor or a roller conveyor, the first support 11 and the second support 12 are respectively arranged on two sides of the conveying direction of the conveyor, the baffle 3 is located at a preset height position above the conveyor, pins of the printed circuit board are placed upwards, and the printed circuit board passes through the position below the baffle along with the conveying process of the conveyor to be tested. The embodiment can realize automatic testing by the mode, replaces manual testing, saves manpower and avoids the problem that the testing accuracy is influenced by subjective factors.

In a particular embodiment, the mounting frame 2 includes mounting posts 21. A mounting post 21 is provided in the gap between the first bracket 11 and the second bracket 12, and the baffle 3 is mounted on the mounting post 21. Through setting up erection column 21 fixed stop 3, can increase baffle 3 and fix firm degree, reduce the probability of equipment damage.

In some alternative embodiments, the printed circuit board pin height testing apparatus further comprises a moving mechanism 4. The shutter 3 is mounted on the mounting post 21 by the moving mechanism 4. The moving mechanism 4 comprises a guide rail 41 and a sliding block 42, the guide rail 41 is fixedly installed on the installation column 21 and is arranged along the vertical direction, the sliding block 42 is slidably installed on the guide rail 41, and the baffle 3 is fixedly connected with the sliding block 42. Specifically, certain friction force is provided between the sliding block 42 and the guide rail 41, self-locking can be achieved under the condition of no external force action, when external force is applied to the baffle 3, the baffle 3 can move along the guide rail 41 together with the sliding block 42, therefore, the height of the baffle 3 can be flexibly adjusted according to different test requirements by arranging the moving mechanism 4, the printed circuit board pin height testing equipment can test printed circuit boards with different pin height requirements, and the universality of the printed circuit board pin height testing equipment is improved.

In some optional embodiments, the printed circuit board pin height testing apparatus further comprises an adjusting screw 5 and a connector 6. The adjusting screw rod 5 penetrates through the mounting frame 2 along the vertical direction and is in threaded connection with the mounting frame 2. The connecting piece 6 is rotatably installed at the bottom end of the adjusting screw 5 and is fixedly connected with the baffle 3, and the connecting piece 6 is configured to move along with the adjusting screw 5 to drive the baffle 3 to move. Specifically, the joint of the adjusting screw 5 and the connecting member 6 may be provided with a connecting portion 51 having a disk-shaped structure, and two side surfaces of the disk-shaped structure are respectively abutted to the connecting member 6. When adjusting lead screw 5 and rotating, because form threaded connection between it and the mounting bracket 2 for adjust lead screw 5 and can reciprocate for mounting bracket 2 at the rotation in-process, and rotate the connecting piece 6 of being connected with adjusting lead screw 5 this moment, also reciprocate thereupon under the drive of connecting portion 51, thereby drive baffle 3 and reciprocate, with the height that realizes adjusting baffle 3, increase the commonality of device. Baffle 3 uses according to above-mentioned mode and 4 cooperations of moving mechanism, and when adjusting lead screw 5 and connecting piece 6 and drive baffle 3 motion, moving mechanism 4 can play the guide effect to confirm the direction that baffle 3 removed, make equipment more stable when adjusting.

In some alternative embodiments, the printed circuit board pin height testing apparatus further comprises a hand-held portion 7. The hand-held part 7 is fixedly arranged at the top end of the adjusting screw rod 5. The handheld portion 7 can be a disc-shaped or other-shaped handle, and before testing, a worker rotates the adjusting screw 5 through the handheld portion 7 to adjust the height of the baffle 3, and the testing is started after the adjustment is appropriate. The embodiment can lead the adjustment of the staff to be more labor-saving and accurate by arranging the handheld part 7.

In some alternative embodiments, the adjustment screw 5 is marked with graduation marks. The adjusting amount can be accurately determined by the staff during adjustment, so that the height of the baffle 3 can be adjusted more conveniently and accurately.

In some alternative embodiments, the printed circuit board pin height testing apparatus further comprises a locking structure 8. The locking structure 8 is sleeved on the adjusting screw 5 and is fixedly mounted at the top of the mounting frame 2 for locking the adjusting screw 5, so that the relative position of the adjusting screw 5 and the mounting frame 2 is kept fixed. The locking structure 8 is a structure capable of clamping the periphery of the adjusting screw 5, and when the height of the baffle 3 is properly adjusted, the adjusting screw 5 and the mounting frame 2 are kept fixed through the locking structure 8. The problem of adjust 5 transmission rotations of lead screw because of the mistake is touched to lead to the high change that leads to baffle 3, further lead to inaccurate to the test result of printed circuit board pin height is avoided.

In some alternative embodiments, the baffle 3 includes a mounting plate 31 and a flap 32. The mounting plate 31 is mounted on the mounting bracket 2, and a plurality of mounting holes 311 are provided on the mounting plate 31. The number of the blocking pieces 32 is more than or equal to 1, the blocking pieces are respectively detachably arranged on the mounting plate 31 through the mounting holes 311, and the bottom edge of each blocking piece 32 is lower than that of the mounting plate 31. Because the bottom edge of the blocking plate 32 is lower than the bottom edge of the mounting plate 31, the height of the printed circuit board pins is determined by the height of the bottom edge of the blocking plate 32 when testing, and the pins are not qualified when contacting the blocking plate 32. The separation blade 32 can be based on the width difference of the printed circuit board that awaits measuring 1 or a plurality of side by side installation, along with the width increase of the printed circuit board that awaits measuring, can increase the installation quantity of separation blade 32, makes whole printed circuit board homoenergetic tested, can not have the place of omitting. In the embodiment, 1 or more blocking pieces 32 are detachably arranged on the mounting plate 31, so that the device can be suitable for measuring printed circuit boards with different widths, and the universality of the device is further increased.

In some alternative embodiments, the blocking plate 32 is provided with a lifting slot 321, and the lifting slot 321 extends in a vertical direction and is used for matching with the mounting hole 311 to adjust the mounting height of the blocking plate 32. In some special cases, the height requirements of the pins in different areas on the printed circuit board to be tested are different, and the height of the blocking sheet 32 on the mounting plate 31 can be adjusted by adjusting the matching position of the lifting slot 321 and the mounting hole 311, so that the mounting heights of different blocking sheets 32 are different, and the bottom edge positions of the blocking sheets 32 are also different. For example, if the pin height of the first area on the printed circuit board is required to be less than 1mm, and the pin height of the second area is required to be less than 2mm, the bottom edge of the blocking piece 32 above the first area is 1mm from the printed circuit board, and the bottom edge of the blocking piece 32 above the second area is 2mm from the printed circuit board. This embodiment makes equipment satisfy more diversified test demand through setting up lift groove 321.

In some alternative embodiments, a guide groove 121 is provided at the top of the second bracket 12, the guide groove 121 extends in a direction parallel to the direction of the connection line between the first bracket 11 and the second bracket 12, and the mounting bracket 2 is detachably and fixedly connected to the second bracket 12 through the guide groove 121. The fixing position of the mounting bracket 2 on the guide groove 121 can be adjusted, and since the mounting bracket 2 is fixedly connected with the first support 11, the fixing positions of the mounting bracket 2 and the second support 12 on the guide groove 121, that is, the distance between the first support 11 and the second support 12, can be adjusted. When the width of the printed circuit board to be tested is increased, the distance between the first bracket 11 and the second bracket 12 is increased by adjusting the mounting position of the mounting bracket 2 on the guide groove 121, so that the printed circuit board to be tested can smoothly pass through the guide groove, thereby completing the test. In this embodiment, the guide groove 121 is provided, so that the apparatus can test printed circuit boards of more specifications, and the universality of the apparatus is further increased.

In summary, the printed circuit board pin height testing device of the embodiment of the utility model realizes automatic testing of the pin height of the printed circuit board, replaces manual testing, saves manpower, and avoids the problem that the testing accuracy is affected by subjective factors.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A printed circuit board pin height test apparatus, the apparatus comprising:

the support (1) is vertically arranged and comprises a first support (11) and a second support (12), and the first support (11) and the second support (12) are arranged at intervals;

the mounting rack (2) is mounted at the top of the support (1) and is fixedly connected with the first support (11) and the second support (12) respectively;

a baffle (3) mounted on the mounting frame (2) and located in the space between the first bracket (11) and the second bracket (12).

2. The apparatus according to claim 1, characterized in that the mounting frame (2) comprises:

a mounting post (21) disposed in a gap between the first bracket (11) and the second bracket (12), the baffle (3) being mounted on the mounting post (21).

3. The apparatus of claim 2, further comprising:

moving mechanism (4), baffle (3) pass through moving mechanism (4) are installed on erection column (21), moving mechanism (4) include guide rail (41) and slider (42), guide rail (41) fixed mounting be in on erection column (21), and set up along vertical direction, slider (42) slidable mounting be in on guide rail (41), baffle (3) with slider (42) fixed connection.

4. The apparatus of claim 3, further comprising:

the adjusting screw rod (5) penetrates through the mounting rack (2) along the vertical direction and is in threaded connection with the mounting rack (2);

the connecting piece (6) is rotatably installed at the bottom end of the adjusting screw rod (5) and is fixedly connected with the baffle plate (3), and the connecting piece (6) is configured to move along with the adjusting screw rod (5) so as to drive the baffle plate (3) to move.

5. The apparatus of claim 4, further comprising:

and the handheld part (7) is fixedly arranged at the top end of the adjusting screw rod (5).

6. The device according to claim 4, characterized in that the adjusting screw (5) is marked with graduation marks.

7. The apparatus of claim 4, further comprising:

and the locking structure (8) is sleeved on the adjusting screw rod (5), is fixedly installed at the top of the mounting frame (2) and is used for locking the adjusting screw rod (5) so as to keep the relative position of the adjusting screw rod (5) and the mounting frame (2) fixed.

8. The apparatus according to claim 1, characterized in that said baffle (3) comprises:

the mounting plate (31) is mounted on the mounting frame (2), and a plurality of mounting holes (311) are formed in the mounting plate (31); and

the number of the baffle plates (32) is more than or equal to 1, the baffle plates (32) are detachably mounted on the mounting plate (31) through the mounting holes (311), and the bottom edge of the baffle plate (32) is lower than that of the mounting plate (31).

9. The apparatus according to claim 8, wherein the baffle plate (32) is provided with a lifting slot (321), and the lifting slot (321) extends in a vertical direction and is used for matching with the mounting hole (311) to adjust the mounting height of the baffle plate (32).

10. The device according to claim 1, characterized in that a guide groove (121) is formed in the top of the second bracket (12), the guide groove (121) extends in a direction parallel to the line connecting the first bracket (11) and the second bracket (12), and the mounting frame (2) is detachably and fixedly connected with the second bracket (12) through the guide groove (121).