CN219347701U - Be used for PCB board bow detection device and detecting system - Google Patents
Be used for PCB board bow detection device and detecting system Download PDFInfo
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- CN219347701U CN219347701U CN202223536169.8U CN202223536169U CN219347701U CN 219347701 U CN219347701 U CN 219347701U CN 202223536169 U CN202223536169 U CN 202223536169U CN 219347701 U CN219347701 U CN 219347701U
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Abstract
The utility model discloses a bow detection device and a bow detection system for a PCB, wherein the bow detection device and the bow detection system for the PCB comprise a bearing platform, the bearing platform is square, and a movable cavity is arranged in the center of the top surface of the bearing platform; two supporting seats; two sets of limiting parts; and a camber detecting unit. According to the utility model, the bearing platform is provided with the two supporting seats and the two groups of limiting parts on the top surface of the bearing platform, and the arch detection part is arranged at the center of the top surface, the two supporting seats limit and fix four corners of the PCB on the same plane by using the two groups of limiting parts, and at the moment, the center of the PCB coincides with the central axis of the movable cavity, so that the arch measurement part can conveniently measure the central arch height (namely the maximum arch height) of the PCB. The central arch height of the PCB is measured without manually using a measuring ruler, so that the accuracy and convenience in measuring the maximum arch height of the PCB are ensured. The defect that the maximum arch height of the PCB cannot be accurately and conveniently measured in the prior art is effectively overcome.
Description
Technical Field
The utility model relates to the technical field of PCB detection, in particular to a bow detection device and a bow detection system for a PCB.
Background
The PCB board, called a printed circuit board, is an important electronic component, is a support for electronic components, and is a carrier for electrical connection of the electronic components. It is called a "printed" circuit board because it is made using electronic printing.
In actual production of a PCB, bowing phenomenon is generally generated, the stress applied to the PCB is larger than the stress born by the material of the PCB, and when the stress born by the PCB is uneven or the capability of resisting the stress at each place on the PCB is uneven, bowing of the PCB can occur, and serious warpage is somewhat like an arch bridge. The bow detection of the PCB is generally performed by dividing the maximum camber height value of the PCB by 2 times of the diagonal length value of the PCB, and the obtained decimal value is used as a criterion for judging whether the bow degree of the PCB meets the actual construction requirement.
At present, the maximum arch height value of the PCB is measured or fixed at four corners of the PCB manually, and then the measuring rule is adopted for measurement, but the maximum arch height of the PCB is generally positioned at the central position of the PCB, and the measuring rule cannot enter, so that the maximum arch height of the PCB cannot be accurately and conveniently measured, and the bow parameters of the PCB are easily affected.
Disclosure of Invention
The utility model aims to solve the defect that the maximum arch height of a PCB cannot be accurately and conveniently measured in the prior art, and provides a bow detection device for the PCB.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the first aspect of the present utility model provides a bow detection device for a PCB board, comprising:
the bearing platform is square, and a movable cavity is arranged in the center of the top surface of the bearing platform;
the two supporting seats are C-shaped, the two supporting seats are oppositely arranged on the bearing platform, openings of the two supporting seats are close to each other, and the supporting seats are used for bearing and supporting the PCB;
the two groups of limiting parts are oppositely arranged on the two supporting seats and are used for limiting and fixing the PCB in the openings of the supporting seats;
the arch detection part is arranged in the movable cavity, the arch detection part is arranged between the two supporting seats, and the arch detection part is used for detecting the arch height of the PCB.
In some possible embodiments, the camber detecting portion includes:
the second pump body is arranged in the movable cavity, and the output end of the second pump body is connected with one end of a second telescopic push rod;
the movable bulge is in an arc bulge shape, the bottom end of the movable bulge is connected to the other end of the second telescopic push rod, the movable bulge is arranged in the movable cavity in a sliding manner, and the center of the movable bulge is coaxial with the center of the movable cavity;
the proximity sensor is arranged at the top of the movable protrusion and is used for detecting a gap between the movable protrusion and the PCB;
the plurality of groups prevent excessive pressure portion, the multiunit prevent excessive pressure portion is followed the central line annular array distribution of second pump body, prevent excessive pressure portion is used for preventing the excessive jack-up PCB board of activity arch.
In some possible embodiments, the anti-overpressure portion comprises:
two connecting pieces, one connecting piece is connected to the bottom end of the movable protrusion, the other connecting piece is arranged on the bottom surface of the movable cavity, and the two connecting pieces are oppositely arranged;
and one end of the second spring is connected with the movable protrusion through one connecting piece, and the other end of the second spring is connected with the bottom surface of the movable cavity through the other connecting piece.
In some possible embodiments, the second pump body is an electric push rod, and the second pump body is electrically connected to the proximity sensor.
In some possible embodiments, the limiting portion includes:
the first pump body is arranged on the supporting seat, the output end of the first pump body is connected with one end of a first telescopic push rod, and the other end of the first telescopic push rod penetrates through and extends to the inside of an opening of the supporting seat;
the limiting plate is connected with one end of the first telescopic push rod and is arranged in the opening of the supporting seat in a vertical moving mode;
the first springs are arranged in the limiting plate and the opening of the supporting seat, the top ends of the first springs are connected to the top of the inner wall of the opening of the supporting seat, and the bottom ends of the first springs are connected to the top ends of the limiting plate;
the first springs are arranged in a linear distribution mode.
In some possible embodiments, the first pump body may be an air pump or a hydraulic pump.
In some possible embodiments, the bearing platform is further provided with a plurality of sliding grooves, and the sliding grooves are distributed in a rectangular array along the central axis of the movable cavity;
the sliding blocks are arranged in the sliding grooves, and the supporting seat slides in the sliding grooves through the sliding blocks.
A second aspect of the present utility model provides a bow detection system for a PCB board, employing a bow detection device for a PCB board according to any one of the first aspect.
The beneficial effects of the utility model are as follows:
in the embodiment of the utility model, the bearing platform is provided with the two supporting seats and the two groups of limiting parts on the top surface of the bearing platform, and the arch detection parts are arranged at the center of the top surface, the two supporting seats limit and fix four corners of the PCB on one plane by utilizing the two groups of limiting parts, and at the moment, the center of the PCB coincides with the central axis of the movable cavity, so that the arch measurement part can conveniently measure the central arch height (namely the maximum arch height) of the PCB. The central arch height of the PCB is measured without manually using a measuring ruler, so that the accuracy and convenience in measuring the maximum arch height of the PCB are ensured. The defect that the maximum arch height of the PCB cannot be accurately and conveniently measured in the prior art is effectively overcome.
Drawings
Fig. 1 is a schematic overall structure diagram of a bow detecting device for a PCB board according to an embodiment of the present utility model;
fig. 2 is a plan sectional view (side view) of an overall structure of a bow detecting device for a PCB board according to an embodiment of the present utility model;
fig. 3 is an enlarged view of a portion a in fig. 2.
The labels in the figures are as follows:
1. a load-bearing platform; 11. a chute; 12. a movable cavity;
2. a support base; 21. a slide block;
3. a limit part; 31. a limiting plate; 32. a first pump body; 321. a connecting pipe; 322. a first telescopic push rod; 33. a first spring;
4. a movable protrusion; 411. a sensor; 42. a connecting piece; 43. a second spring; 44. a second pump body; 441. and the second telescopic push rod.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.
In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; "coupled" may be mechanical or electrical; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout includes three parallel schemes, for example "A and/or B", including the A scheme, or the B scheme, or the scheme where A and B are satisfied simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.
Example 1
Referring to fig. 1-3, a bow detection device for a PCB board, the detection device comprising: the device comprises a bearing platform 1, two supporting seats 2, two groups of limiting parts 3 and an arch detection part. The bearing platform 1 is square, and a movable cavity 12 is arranged in the center of the top surface of the bearing platform 1. The supporting seats 2 are C-shaped, two supporting seats 2 are oppositely arranged on the bearing platform 1, openings of the two supporting seats 2 are close to each other, and the supporting seats 2 are used for bearing and supporting the PCB. The two groups of limiting parts 3 are oppositely arranged on the two supporting seats 2, and the limiting parts 3 are used for limiting and fixing the PCB in the opening of the supporting seats 2. The arch detection part is arranged in the movable cavity 12, the arch detection part is arranged between the two supporting seats 2, and the arch detection part is used for detecting the arch height of the PCB. In this embodiment, the carrying platform 1 is provided with two supporting seats 2 and two sets of limiting parts 3 on its own top surface, and at the same time, an arch detecting part is provided at the center of the top surface, the two supporting seats 2 utilize the two sets of limiting parts 3 to fix four corners of the PCB board to a plane in a limiting manner, and at this time, the center of the PCB board coincides with the central axis of the movable cavity 12, so that the arch measuring part measures the central arch height (i.e. the maximum arch height) of the PCB board. The central arch height of the PCB is measured without manually using a measuring ruler, so that the accuracy and convenience in measuring the maximum arch height of the PCB are ensured. The defect that the maximum arch height of the PCB cannot be accurately and conveniently measured in the prior art is effectively overcome.
Referring to fig. 2 and 3, in the present embodiment, the camber detecting portion includes: the second pump body 44, the second telescopic push rod 441, the movable protrusion 4, a plurality of sets of overpressure prevention parts and the proximity sensor 411. The second pump body 44 is disposed in the movable cavity 12, and an output end of the second pump body 44 is connected to one end of the second telescopic push rod 441. The movable protrusion 4 is in an arc-shaped protrusion shape, the bottom end of the movable protrusion 4 is connected to the other end of the second telescopic push rod 441, the movable protrusion 4 is slidably disposed in the movable cavity 12, and the center of the movable protrusion 4 is coaxial with the center of the movable cavity 12. The proximity sensor 411 is disposed at the top of the movable protrusion 4, and the proximity sensor 411 is electrically connected with the second pump body 44, and the proximity sensor 411 is used for detecting a gap between the movable protrusion 4 and the PCB board, so as to prevent the movable protrusion 4 from damaging the PCB board. The plurality of groups of overpressure preventing parts are distributed along the central line annular array of the second pump body 44, and the overpressure preventing parts are used for preventing the movable protrusion 4 from excessively jacking up the PCB. In this embodiment, the second pump body 44 pushes the second telescopic push rod 441 through the output end, at this time, the vertex of the movable protrusion 4 moves upwards along the movable cavity 12 at the horizontal plane fixed to the four corners of the PCB board, so that the movable protrusion 4 approaches the PCB board, and meanwhile, the proximity sensor 411 feeds back and judges whether the movable protrusion 4 coincides with the central arch point of the PCB board, after the coincidence, an operator observes the feeding amount of the second pump body 44, obtains the lifting height of the movable protrusion 4 according to the feeding amount, and obtains the central arch height of the PCB board. In this embodiment, the second pump body 44 may be an electric push rod, a hydraulic pump, or an air pump. Preferably, the second pump body 44 is an electric push rod, the second pump body 44 is electrically connected with the proximity sensor 411, the second pump body 44 drives the movable protrusion 4 to move upwards at the fixed horizontal plane of four corners of the PCB board, when the movable protrusion 4 is overlapped with the central arch of the PCB board, the proximity sensor 411 feeds back a signal to the second pump body 44, the second pump body 44 is powered off, the movable protrusion 4 stops rising, the linkage of the device is effectively ensured, and the PCB board is also protected.
In this embodiment, a plurality of sets of the overpressure preventing portions are distributed along the central line of the second pump body 44 in an annular array, and the structure of the overpressure preventing portions is described herein for convenience. Described in terms of a set of anti-over-pressurization portions, in particular, the anti-over-pressurization portions include: a second spring 43 and two connectors 42. One connecting piece 42 is connected to the bottom end of the movable protrusion 4, the other connecting piece 42 is disposed on the bottom surface of the movable cavity 12, and the two connecting pieces 42 are disposed opposite to each other. One end of the second spring 43 is connected to the movable protrusion 4 through one connecting piece 42, and the other end of the second spring 43 is connected to the bottom surface of the movable cavity 12 through another connecting piece 42. By providing the second spring 43, the movable protrusion 4 is prevented from excessively contacting the PCB during the upward measurement.
In this embodiment, the limiting portion 3 includes: the first pump body 32, the first telescopic push rod 322, the connecting pipe 321, the plurality of first springs 33 and the limiting plate 31. The first pump body 32 is disposed on the support base 2, an output end of the first pump body 32 is connected with one end of the first telescopic push rod 322, and the other end of the first telescopic push rod 322 extends into the opening of the support base 2. The limiting plate 31 is connected to one end of the first telescopic push rod 322, and the limiting plate 31 is disposed in the opening of the support seat 2 in a vertically moving manner. The plurality of first springs 33 are disposed in the limiting plate 31 and the opening of the supporting seat 2, the top ends of the first springs 33 are connected to the top of the inner wall of the opening of the supporting seat 2, the bottom ends of the first springs 33 are connected to the top ends of the limiting plate 31, and the plurality of first springs 33 are linearly distributed. The connecting pipe 321 is connected to the first pump body 32, and the connecting pipe 321 is used for providing power for the first pump body 32. In this embodiment, the output end of the first pump body 32 provides power through the connecting pipe 321, and pushes the first telescopic push rod 322 to drive the limiting plate 31 to move downwards in the opening of the supporting seat 2, so as to limit and fix four corners of the PCB, and meanwhile, the first spring 33 stretches, so that the limiting plate 31 is prevented from excessively pressing down the PCB.
In a possible preferred embodiment, in order to ensure that two sets of the limiting parts 3 can fix four corners of the PCB board to the same horizontal plane at the same time, two first pump bodies 32 may share one power source. The first pump body 32 may be an air pump or a hydraulic pump.
In this embodiment, in order for the detection device to detect the bow degree of the PCB boards with other dimensions, the carrying platform 1 is further provided with a plurality of sliding grooves 11, and the plurality of sliding grooves 11 are distributed in rectangular arrays along the central axis of the movable cavity 12. A plurality of sliding grooves 11 are internally provided with sliding blocks 21, and the supporting seats 2 slide in the sliding grooves 11 through the sliding blocks 21 so as to adjust the interval between the two supporting seats 2. In this embodiment, the plurality of sliding grooves 11 are distributed along the rectangular array of the central axis of the movable cavity 12, so that the two supporting seats 2 slide simultaneously, the gap between the two supporting seats 2 is adjusted, and the center between the two supporting seats 2 always coincides with the central axis of the movable cavity 12, so that the arch detection part can detect the height of the maximum arch area of the PCB board.
Example two
The utility model also provides a bow detection system for a PCB board in the present embodiment, the detection system adopts the bow detection device for a PCB board in the first embodiment, and the detection system further includes: two sets of power sources (not shown in the drawings), two sets of power sources are respectively connected with the first pump body 32 and the second pump body 44, the power sources are used for providing power for the first pump body 32 and the second pump body 44, the power sources can be selected according to the types of the first pump body 32 and the second pump body 44, and the power sources can be: one or more of a hydraulic oil tank, an air source or a power supply. Namely, when the second pump body 44 is a hydraulic pump, the lifting height of the movable protrusion 4 is obtained through the oil inlet amount of the second pump body, so that the central arch height value of the PCB is obtained; namely, when the second pump body 44 is an air pump, the rising height of the movable protrusion 4 is obtained through the air inflow of the second pump body, so that the central arch height value of the PCB is obtained; namely, when the second pump body 44 is an electric push rod, the ascending height of the movable protrusion 4 is obtained through the working signal frequency, so that the central arch height value of the PCB is obtained.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (8)
1. Be used for PCB board bow detection device, characterized in that includes:
the bearing platform is square, and a movable cavity is arranged in the center of the top surface of the bearing platform;
the two supporting seats are C-shaped, the two supporting seats are oppositely arranged on the bearing platform, openings of the two supporting seats are close to each other, and the supporting seats are used for bearing and supporting the PCB;
the two groups of limiting parts are oppositely arranged on the two supporting seats and are used for limiting and fixing the PCB in the openings of the supporting seats;
the arch detection part is arranged in the movable cavity, the arch detection part is arranged between the two supporting seats, and the arch detection part is used for detecting the arch height of the PCB.
2. The bow detection device for a PCB board according to claim 1, wherein the bow detection portion comprises:
the second pump body is arranged in the movable cavity, and the output end of the second pump body is connected with one end of a second telescopic push rod;
the movable bulge is in an arc bulge shape, the bottom end of the movable bulge is connected to the other end of the second telescopic push rod, the movable bulge is arranged in the movable cavity in a sliding manner, and the center of the movable bulge is coaxial with the center of the movable cavity;
the proximity sensor is arranged at the top of the movable protrusion and is used for detecting a gap between the movable protrusion and the PCB;
the plurality of groups prevent excessive pressure portion, the multiunit prevent excessive pressure portion is followed the central line annular array distribution of second pump body, prevent excessive pressure portion is used for preventing the excessive jack-up PCB board of activity arch.
3. The bow detection device for a PCB of claim 2, wherein the overpressure preventing portion comprises:
two connecting pieces, one connecting piece is connected to the bottom end of the movable protrusion, the other connecting piece is arranged on the bottom surface of the movable cavity, and the two connecting pieces are oppositely arranged;
and one end of the second spring is connected with the movable protrusion through one connecting piece, and the other end of the second spring is connected with the bottom surface of the movable cavity through the other connecting piece.
4. The bow detection device for a PCB of claim 3, wherein the second pump body is an electric push rod, and the second pump body is electrically connected to the proximity sensor.
5. The bow detection device for a PCB according to any one of claims 1-4, wherein the limit portion comprises:
the first pump body is arranged on the supporting seat, the output end of the first pump body is connected with one end of a first telescopic push rod, and the other end of the first telescopic push rod penetrates through and extends to the inside of an opening of the supporting seat;
the limiting plate is connected with one end of the first telescopic push rod and is arranged in the opening of the supporting seat in a vertical moving mode;
the first springs are arranged in the limiting plate and the opening of the supporting seat, the top ends of the first springs are connected to the top of the inner wall of the opening of the supporting seat, and the bottom ends of the first springs are connected to the top ends of the limiting plate;
the first springs are arranged in a linear distribution mode.
6. The bow detection device for PCB of claim 5, wherein the first pump body is an air pump or a hydraulic pump.
7. The bow detection device for the PCB of claim 1, wherein the bearing platform is further provided with a plurality of sliding grooves, and the sliding grooves are distributed in a rectangular array along the central axis of the movable cavity;
the sliding blocks are arranged in the sliding grooves, and the supporting seat slides in the sliding grooves through the sliding blocks.
8. A bow detection system for a PCB board, characterized in that a bow detection device for a PCB board according to any of the claims 1-7 is used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223536169.8U CN219347701U (en) | 2022-12-27 | 2022-12-27 | Be used for PCB board bow detection device and detecting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223536169.8U CN219347701U (en) | 2022-12-27 | 2022-12-27 | Be used for PCB board bow detection device and detecting system |
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| Publication Number | Publication Date |
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| CN219347701U true CN219347701U (en) | 2023-07-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202223536169.8U Active CN219347701U (en) | 2022-12-27 | 2022-12-27 | Be used for PCB board bow detection device and detecting system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117469568A (en) * | 2023-12-27 | 2024-01-30 | 常州技天电子有限公司 | PCB online detection device and method |
-
2022
- 2022-12-27 CN CN202223536169.8U patent/CN219347701U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117469568A (en) * | 2023-12-27 | 2024-01-30 | 常州技天电子有限公司 | PCB online detection device and method |
| CN117469568B (en) * | 2023-12-27 | 2024-04-19 | 常州技天电子有限公司 | PCB online detection device and method |
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