Adjustable top PIN mechanism

Abstract

The utility model relates to the technical field of printed circuit board processing, in particular to an adjustable top PIN mechanism, which comprises a base and a carrier plate, a first through hole is arranged at the top of the base along the vertical direction, an accommodating space is arranged in the middle of the base and communicated with the first through hole, a plurality of top PINs are arranged at the top of the carrier plate, and the top PINs are communicated with the first through hole. A stud is arranged at the bottom of the carrying plate, an adjusting piece is in threaded connection with the periphery of the stud and located in the containing space, and the top of the adjusting piece abuts against the inner walls of the upper end and the lower end of the containing space. The adjusting piece can move up and down relative to the stud when rotating, the top of the adjusting piece abuts against the inner walls of the upper end and the lower end of the containing space, so that the stud can move up and down relative to the base, and then lifting and descending are achieved; the height of the carrier plate can be adjusted according to actual optical detection requirements, the structure is reasonable, and the flexibility is high.

Description

Technical Field

[0001] The utility model relates to the technical field of printed circuit board processing, in particular to an adjustable top PIN mechanism. Background Art

[0002] Printed circuit boards (PCBs) are critical components in electronic devices, and their manufacturing process must be precise and reliable to ensure the quality and performance of the final product. During the PCB production process, to ensure that the components on the board are correctly installed and free of defects, the PCBs are typically subjected to a series of quality control tests, including optical inspection.

[0003] Optical inspection is a crucial quality control step that uses high-precision cameras and other imaging devices to check solder joints, component placement, and other possible manufacturing defects on PCBs. To perform this inspection, the PCB needs to be mounted on a suitable carrier that can precisely position the board within the inspection equipment's field of view.

[0004] Existing carriers used to support PCBs for optical inspection typically include a platform with top pins that secure the PCB in place to prevent movement during inspection. However, a significant drawback of current carriers is their lack of height adjustment. This means that once the board is placed on the carrier, subtle height adjustments cannot be made to meet inspection requirements. This can result in minor defects going undetected, especially when inspecting high-density, multi-layer PCBs, where subtle positional differences can lead to inaccurate inspection results. Utility Model Content

[0005] The present invention aims to at least solve the technical problems existing in the prior art. To this end, the present invention proposes an adjustable top PIN mechanism that can adjust the height of the carrier plate according to actual optical detection needs, with a reasonable structure and high flexibility.

[0006] According to some embodiments of the present invention, an adjustable top PIN mechanism includes a base and a carrier plate, wherein a first through hole is provided on the top of the base in the vertical direction, a receiving space is provided on the middle part of the base, the receiving space is communicated with the first through hole, an opening is provided on the outer wall of the base, the opening is communicated with the receiving space, a plurality of top PINs are provided on the top of the carrier plate, a stud is provided on the bottom of the carrier plate, an adjusting member is screwed on the outer periphery of the stud, the adjusting member is located in the receiving space, the top of the adjusting member abuts against the upper and lower inner walls of the receiving space, and one end of the adjusting member extends out of the opening.

[0007] An adjustable top PIN mechanism according to some embodiments of the present invention has at least the following beneficial effects:

[0008] The utility model is provided with a first through hole in the vertical direction through the top of the base, and an accommodating space is provided on the middle part of the base, the accommodating space is communicated with the first through hole, and an opening is provided on the outer wall of the base, the opening is communicated with the accommodating space, a plurality of top PINs are provided on the top of the carrier plate, and a stud is provided on the bottom of the carrier plate, and an adjusting member is screwed on the outer periphery of the stud, and the adjusting member is located in the accommodating space, and the adjusting member can move up and down relative to the stud when rotated. Since the top of the adjusting member abuts against the upper and lower inner walls of the accommodating space, the stud will move up and down relative to the base, thereby realizing lifting and lowering. At the same time, by providing the opening, the adjusting member can be rotated. The utility model can adjust the height of the carrier plate according to actual optical detection needs, and has a reasonable structure and high flexibility.

[0009] According to an adjustable top PIN mechanism in some embodiments of the present invention, the outer wall ring of the adjusting member is provided with scale lines, and the outer wall of the base is provided with an indicator arrow, and the indicator arrow is located on the top of the scale lines.

[0010] According to an adjustable top PIN mechanism in some embodiments of the present invention, the scale line is arranged on the top periphery of the adjusting member, the middle part of the base is recessed inward to form a groove, the bottom of the groove is connected to the opening, and the indicator arrow is arranged on the groove.

[0011] According to an adjustable top PIN mechanism in some embodiments of the present invention, a screw hole is provided at the bottom of the accommodating space, a ball screw is threaded into the screw hole, a plurality of positioning holes are provided around the bottom of the adjusting member, and the ball screws are arranged corresponding to the positioning holes.

[0012] According to an adjustable top PIN mechanism in some embodiments of the present invention, two of the ball-end screws and the positioning holes are provided, the ball-end screws are screwed one by one with the positioning holes, and the ball-end screws are correspondingly provided at both ends of the adjusting member.

[0013] According to an adjustable top PIN mechanism in some embodiments of the present invention, a plurality of guide holes are opened at the top edge of the base, linear bearings are arranged in the guide holes, a plurality of guide columns are provided at the bottom edge of the carrier plate, and the linear bearings are sleeved on the outer circumference of the guide columns.

[0014] According to an adjustable top PIN mechanism in some embodiments of the present invention, four guide holes and four guide posts are provided, linear bearings are provided in the guide holes, and the guide posts are passed through the linear bearings one by one.

[0015] According to an adjustable top PIN mechanism in some embodiments of the present invention, a plurality of limiting holes are provided at the bottom of the guide hole, the aperture of the limiting holes is smaller than the aperture of the guide hole, and a stop block is provided at the bottom of the guide column, and the stop block is located in the limiting hole.

[0016] According to an adjustable top PIN mechanism in some embodiments of the present invention, a plurality of connection holes are provided on the bottom of the base.

[0017] According to an adjustable top PIN mechanism in some embodiments of the present invention, the top PIN is made of silicone.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0020] Figure 1 It is a structural schematic diagram of an embodiment of the present utility model.

[0021] Figure 2 This is an exploded view of the structure of an embodiment of the present utility model.

[0022] Figure 3 This is a schematic structural diagram of a base according to an embodiment of the present utility model.

[0023] Figure 4 This is a schematic structural diagram of an adjusting member according to an embodiment of the present utility model.

[0024] Reference numerals: 1, base, 2, carrier plate, 3, adjustment member;

[0025] 101. First through hole, 102. Accommodation space, 103. Opening, 104. Screw hole, 105. Ball screw, 106. Guide hole, 107. Linear bearing, 108. Guide column, 109. Limiting hole, 110. Magnet, 111. Groove;

[0026] 201, top PIN, 202, stud;

[0027] 301. Anti-slip grooves, 302. Scale lines, 303. Indicator arrows, 304. Positioning holes. DETAILED DESCRIPTION

[0028] The following describes in detail embodiments of the present invention. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0029] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, left, right, front, and back, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the modules or components referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0030] In the description of this utility model, if there is a description of first and second, it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0031] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0032] like Figures 1-4 As shown, an embodiment of the present utility model provides an adjustable top PIN mechanism.

[0033] An adjustable top PIN mechanism includes a base 1 and a carrier plate 2. A first through hole 101 is opened in the top of the base 1 in the vertical direction. A accommodating space 102 is opened in the middle of the base 1, and the accommodating space 102 is connected to the first through hole 101. An opening 103 is opened on the outer wall of the base 1, and the opening 103 is connected to the accommodating space 102. A plurality of top PINs 201 are provided on the top of the carrier plate 2, and a stud 202 is provided at the bottom of the carrier plate 2. An adjusting member 3 is screwed to the outer periphery of the stud 202. The adjusting member 3 is located in the accommodating space 102. The top of the adjusting member 3 abuts against the upper and lower inner walls of the accommodating space 102, and one end of the adjusting member 3 extends out of the opening 103.

[0034] The utility model is provided with a first through hole 101 in the vertical direction through the top of the base 1, and an accommodating space 102 is provided on the middle part of the base 1, and the accommodating space 102 is communicated with the first through hole 101, and an opening 103 is provided on the outer wall of the base 1, and the opening 103 is communicated with the accommodating space 102. A plurality of top PINs 201 are provided on the top of the carrier plate 2, and a stud 202 is provided at the bottom of the carrier plate 2. The outer periphery of the stud 202 is screwed with an adjusting member 3, and the adjusting member 3 is located in the accommodating space 102. When the adjusting member 3 is rotated, it can move up and down relative to the stud 202. Since the top of the adjusting member 3 abuts against the inner walls of the upper and lower ends of the accommodating space 102, the stud 202 will move up and down relative to the base 1, thereby realizing lifting and lowering. At the same time, by providing the opening 103, the adjusting member 3 can be rotated. The utility model can adjust the height of the carrier plate 2 according to actual optical detection needs, and has a reasonable structure and high flexibility.

[0035] It is understandable that the outer periphery of the adjusting member 3 is provided with anti-slip grooves 301 .

[0036] In this embodiment of the adjustable PIN mechanism, the outer wall of the adjusting member 3 is provided with a scale line 302, and the outer wall of the base 1 is provided with an indicator arrow 303, which is located at the top of the scale line 302. Specifically, the scale line 302 allows the current height of the carrier plate 2 to be checked, facilitating adjustment.

[0037] Furthermore, two openings 103 are provided, and the openings 103 are respectively provided at the front and rear ends of the accommodating space 102 .

[0038] In this embodiment, an adjustable top PIN mechanism is described. The bottom of the accommodating space 102 is provided with a screw hole 104, into which a ball-end screw 105 is threaded. The bottom of the adjusting member 3 is provided with a plurality of positioning holes 304, with the ball-end screws 105 corresponding to the positioning holes 304. Specifically, the tops of the ball-end screws 105 can slightly engage the positioning holes 304, providing a certain position limit for the adjusting member 3, preventing it from rotating arbitrarily and causing height instability of the carrier plate 2. It is understood that the number of positioning holes 304 can correspond to the scale lines 302.

[0039] In the adjustable top PIN mechanism described in this embodiment, two ball screws 105 and two positioning holes 304 are provided, and the ball screws 105 are screwed one by one with the positioning holes 304. The ball screws 105 are correspondingly provided at both ends of the adjusting member 3. Specifically, the above arrangement further improves the structural stability.

[0040] In this embodiment of the adjustable top PIN mechanism, the base 1 has a plurality of guide holes 106 formed on the top edge thereof. Linear bearings 107 are disposed within these guide holes 106. The carrier plate 2 has a plurality of guide posts 203 disposed on the bottom edge thereof. The linear bearings 107 are sleeved around the outer circumferences of the guide posts 108. Specifically, the guide posts 203 and the linear bearings 107 function as guides.

[0041] In the adjustable top PIN mechanism of this embodiment, there are four guide holes 106 and four guide posts 203, each of which is provided with a linear bearing 107, and each of the guide posts 203 is passed through the linear bearing 107. Specifically, the above structure has good stability.

[0042] In the adjustable top PIN mechanism described in this embodiment, the bottom of the guide hole 106 is provided with a plurality of limiting holes 109, the aperture of each limiting hole 109 being smaller than that of the guide hole 106. A stopper 204 is provided at the bottom of the guide post 203, and the stopper 204 is located within the limiting hole 109. Specifically, when the carrier plate 2 moves upward, the stopper 204 abuts against the bottom of the linear bearing 107 when it reaches the top of the limiting hole 109, thus acting as a limiter and preventing the guide post 108 from completely dislodging.

[0043] In the adjustable top PIN mechanism described in this embodiment, the base 1 is provided with a plurality of connection holes (not shown). Specifically, the connection holes can be connected to an external structure. It is understood that magnets 110 are provided on the periphery of the connection holes.

[0044] In the adjustable top PIN mechanism described in this embodiment, the scale line 302 is provided on the top periphery of the adjusting member 3. The middle portion of the base 1 is recessed inward to form a groove 111. The bottom of the groove 111 is connected to the opening 103. The indicator arrow 303 is provided on the groove 111. Specifically, the scale line 302 is located at the bottom of the groove 111.

[0045] In the adjustable top PIN mechanism described in this embodiment, the top PIN 201 is made of silicone. Specifically, the top PIN 201 is arranged in an array, and the silicone can effectively protect the printed circuit board from being easily scratched.

[0046] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An adjustable top PIN mechanism, characterized by: It includes a base and a carrier plate, a first through hole is opened in the vertical direction on the top of the base, an accommodating space is opened in the middle of the base, the accommodating space is communicated with the first through hole, an opening is opened on the outer wall of the base, the opening is communicated with the accommodating space, a plurality of top PINs are provided on the top of the carrier plate, a stud is provided on the bottom of the carrier plate, an adjusting member is screwed on the outer periphery of the stud, the adjusting member is located in the accommodating space, the top of the adjusting member abuts against the upper and lower inner walls of the accommodating space, and one end of the adjusting member extends out of the opening.

2. The adjustable top PIN mechanism according to claim 1, characterized in that: The outer wall of the adjusting member is provided with scale lines, and the outer wall of the base is provided with an indicating arrow, and the indicating arrow is located at the top of the scale lines.

3. The adjustable top PIN mechanism according to claim 2, characterized in that: The scale lines are arranged on the top periphery of the adjusting member, the middle portion of the base is recessed inward to form a groove, the bottom of the groove is connected to the opening, and the indicating arrow is arranged on the groove.

4. The adjustable top PIN mechanism according to claim 2, characterized in that: A screw hole is provided at the bottom of the accommodating space, a ball screw is screwed into the screw hole, and a plurality of positioning holes are provided around the bottom of the adjusting member, and the ball screws are arranged corresponding to the positioning holes.

5. The adjustable top PIN mechanism according to claim 4, characterized in that: There are two of each of the ball-end screws and the positioning holes. The ball-end screws are screwed one by one with the positioning holes, and the ball-end screws are correspondingly arranged at both ends of the adjusting member.

6. The adjustable top PIN mechanism according to claim 1, characterized in that: A plurality of guide holes are provided at the top edge of the base, and linear bearings are provided in the guide holes. A plurality of guide columns are provided at the bottom edge of the carrier plate, and the linear bearings are sleeved on the outer periphery of the guide columns.

7. The adjustable top PIN mechanism according to claim 6, characterized in that: There are four guide holes and four guide posts, each of which is provided with a linear bearing, and each of the guide posts is passed through the linear bearings.

8. The adjustable top PIN mechanism according to claim 6, characterized in that: A plurality of limiting holes are provided at the bottom of the guide hole, and the aperture of the limiting holes is smaller than the aperture of the guide hole. A stopper is provided at the bottom of the guide column, and the stopper is located in the limiting hole.

9. The adjustable top PIN mechanism according to claim 1, characterized in that: The bottom of the base is provided with a plurality of connection holes.

10. The adjustable top PIN mechanism according to claim 1, characterized in that: The material of the top PIN is silicone.

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