CN215179781U - Device for detecting welding height - Google Patents
Device for detecting welding height Download PDFInfo
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- CN215179781U CN215179781U CN202121541791.0U CN202121541791U CN215179781U CN 215179781 U CN215179781 U CN 215179781U CN 202121541791 U CN202121541791 U CN 202121541791U CN 215179781 U CN215179781 U CN 215179781U
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- 238000003466 welding Methods 0.000 title claims abstract description 26
- 238000001514 detection method Methods 0.000 claims abstract description 18
- 239000000523 sample Substances 0.000 claims description 17
- 238000012360 testing method Methods 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000012797 qualification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000013522 software testing Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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Abstract
The application provides a device for detecting welding height, wherein, the device for detecting welding height includes: the receiving unit is used for receiving an object to be detected, wherein the object is welded with a power component module; the detection unit is arranged on the receiving unit, and detects the height of the power component module when the object welded with the power component module is positioned on the receiving unit; and a control unit configured to cause the object having the power component module soldered thereto to leave the receiving unit in response to the detected height being within a preset height range.
Description
Technical Field
The utility model relates to a detect technical field, especially relate to a device for detecting weld height.
Background
Power components on the circuit board, such as IPM, IGBT, power diode, etc., have particularly high requirements for heat dissipation, and therefore, a large heat sink needs to be mounted for heat dissipation. When in production, the power device is welded on the PCB, and then the PCB is arranged in the electric box. Because the large-scale radiator is fixed on the electrical box in advance, the welding height of the power device needs to be controlled quite accurately when the power device is completely attached to the surface of the radiator during installation. At present, a production line adopts a vernier caliper drawing measurement mode, and 100% controllability cannot be guaranteed.
In order to overcome the defects of the prior art, a device for detecting the welding height needs to be provided.
SUMMERY OF THE UTILITY MODEL
To the problem among the above-mentioned prior art, the utility model provides a device for detecting weld height, the device for detecting weld height of this application has realized the online automatic test of power device module weld height, has guaranteed the test coverage.
In a first aspect, the present application provides an apparatus for detecting a welding height, wherein the apparatus for detecting a welding height comprises:
the receiving unit is used for receiving an object to be detected, wherein the object is welded with a power component module;
the detection unit is arranged on the receiving unit, and detects the height of the power component module when the object welded with the power component module is positioned on the receiving unit; and
a control unit configured to cause the object having the power component module soldered thereto to exit the receiving unit in response to the detected height being within a preset height range.
In a possible implementation manner of the first aspect, the system further includes a display unit, which is connected to the detection unit and the control unit, for displaying the detected height and the comparison result between the detected height and the preset height range.
In one possible implementation manner of the first aspect, the receiving unit includes: the two conveying belts are oppositely arranged, and the object welded with the power component module is lapped on the conveying belts.
In one possible embodiment of the first aspect, the control unit includes a stopper provided at an end of the receiving unit to stop the object having the power component module soldered thereon, wherein the stopper moves downward to make the object having the power component module soldered thereon leave the receiving unit in response to the detected height being within a preset height range.
In one possible embodiment of the first aspect, the stopper includes a baffle plate and a cylinder, and a piston rod of the cylinder is in contact with the baffle plate to move the baffle plate upward or downward.
In a possible implementation manner of the first aspect, the first proximity switch and the second proximity switch are further included, where the first proximity switch and the second proximity switch are respectively located on two sides of the baffle and located between the two transport belts, the first proximity switch is used for sensing that the object welded with the power component module is conveyed to the receiving unit, and the second proximity switch is used for determining that the object welded with the power component module leaves the receiving unit.
In one possible embodiment of the first aspect, the control unit comprises a controller interfacing with the cylinder and the detection unit.
In one possible implementation of the first aspect, the detection unit comprises: and the laser ranging probes are arranged at intervals and are used for detecting the height of the power component module.
In one possible implementation manner of the first aspect, the laser ranging probes are uniformly arranged along the circumferential direction of the power component module.
The above-mentioned technical characteristics can be combined in various suitable ways or replaced by equivalent technical characteristics as long as the purpose of the invention can be achieved.
Drawings
The invention will be described in more detail hereinafter on the basis of embodiments and with reference to the accompanying drawings, in which:
fig. 1 shows a schematic view of an apparatus for detecting weld height according to the present invention; and
fig. 2 shows a schematic view of the device for detecting the welding height according to the present invention.
In the drawings, like parts are provided with like reference numerals. The figures are not drawn to scale.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1, the present application provides a device for detecting welding height, wherein the utility model discloses a device for detecting welding height includes: receiving unit 1, detecting element 2 and the control unit, wherein, receiving unit 1 is used for receiving the object 4 (for example PCB board) of welding power components and parts module 3 (for example IPM, IGBT, power diode etc.) that waits to detect, detecting element 2 sets up on receiving unit 1, wherein, when the object of welding power components and parts module is located receiving unit 1, detecting element 2 can detect the height of power components and parts module, and the height that responds to the detection is located and predetermines the height scope, the control unit constructs to make the object of welding power components and parts module can leave receiving unit 1.
Further, the utility model discloses a device for detecting weld height still includes display element 51, and it meets with detecting element 2 and the control unit to height and the predetermined high range contrast result of height that the height that shows to detect and detection, thereby the operating personnel direct observation of being convenient for is to power device module weld height and contrast result.
In one embodiment, the receiving unit 1 includes: two oppositely arranged conveying belts 11 (such as conveying belts) are overlapped on the conveying belts 11 by the object 4 welded with the power component module 3.
In a specific embodiment, the control unit comprises a stop 5, the stop 5 being arranged at an end of the receiving unit 1 such that the object 4 with the power component module 3 soldered thereto rests on the receiving unit 1, wherein, in response to the detected height being within a preset height range, the stop 5 moves downwards such that the object 4 with the power component module 3 soldered thereto leaves the receiving unit 1. In a specific embodiment, the stop 5 comprises a baffle and a cylinder, the piston rod of which is in contact with the baffle to move it up or down. When the object 4 moves onto the receiving unit 1, the piston rod of the cylinder moves outwards (i.e., moves upwards), the piston rod drives the baffle to move, the baffle moves to a position where the height of the baffle is not lower than the bottom surface of the object 4 so as to block the object 4 from continuing to move, and when the detected height of the power component module 3 is within a preset range (i.e., the detected height of the power component module 3 is qualified), the piston rod of the cylinder moves downwards at the moment, and the piston rod drives the baffle to move downwards, so that the object 4 continues to move to leave the receiving unit 1.
Further, the utility model discloses a device for detecting weld height still includes first proximity switch 6 and second proximity switch 7, and wherein, first proximity switch 6 and second proximity switch 7 are located the both sides of baffle respectively and all are located two transportation and take 11 between, and wherein, first proximity switch 6 is used for the object of induction welding power components and parts module to carry to receiving element 1, and second proximity switch is used for judging that object 3 that has power components and parts module 2 leaves receiving element 1. Specifically, the first proximity switch 6 and the second proximity switch 7 are both photoelectric switches, and are both provided between the two belts. When the distance between the detection value of the first proximity switch 6 and the object 3 is the preset distance L, the first proximity switch 6 senses that the main board is conveyed to the receiving unit 1, and when the distance between the detection value of the second proximity switch 7 and the object 3 is suddenly increased from the preset distance L', the main board falls off from the transportation unit.
In a specific embodiment, the control unit includes a controller 8 (e.g., PLC control), the controller is connected to the cylinder and the detection unit 2, specifically, the detection unit 2 transmits the detected height of the power component module 3 to the controller, when the height of the power component module 3 is determined to be within a preset range, the controller gives an instruction to the cylinder to move downward, and the cylinder moves downward to drive the baffle to move downward, so that the object 4 continues to move to leave the receiving unit 1; when the height of the power component module 3 is judged to be out of the preset range, the controller gives an instruction that the cylinder does not move, the baffle still prevents the object from moving at the moment, and the sound-light alarm reminds staff to pick out the main board for reexamination.
Specifically, the detection unit 2 includes a plurality of laser ranging probes 21 arranged at intervals, and the laser ranging probes 21 are used for detecting the height of the power component module 3. For example, the laser ranging probes 21 are arranged at regular intervals in the circumferential direction of the power component module 3. The utility model discloses an in a specific embodiment, detecting element 2 includes the laser range finding probe 21 that four intervals set up, and four laser range finding probes 21 are located four bights of power components and parts module 3 respectively (the upside in every bight of power components and parts module 3 all is equipped with a laser range finding probe 21 promptly), and for example the laser range finding probe is infrared distance measuring sensor for four corner height of measuring power device, in order to prevent that power device is local too high and influence the installation of its top radiator, perhaps by the radiator crush.
A specific embodiment of the device for detecting weld height of the present invention will now be described in detail with reference to fig. 1 and 2, so as to make the present invention clear, which is not intended to be limiting.
The utility model discloses a one set of cylinder and dog, two proximity switches, four laser rangefinder probes, demonstration and signal processing unit, through the PLC control of assembly line, realize automated inspection and judge that the strange warning is reminded. The height of the module after positioning welding is automatically detected through the four laser ranging probes, and signals are converted into numerical values to be visually displayed. The device improves the detection efficiency and the coverage rate, avoids artificial misjudgment and ensures the product quality.
Specifically, the receiving unit 1 includes: two oppositely arranged conveying belts 11 (two oppositely arranged conveying belts at the upper part and the lower part in fig. 1), and two ends of the main board welded with the power component module 3 are lapped on the conveying belts 11. The first proximity switch and the second proximity switch are photoelectric switches and are arranged between the two belts. When the distance between the detection value of the first proximity switch and the mainboard is equal to a preset distance L, the mainboard is sensed, the baffle is in a lifting state initially, the upper surface of the baffle is higher than the lower surface of the mainboard (or the controller controls the control cylinder to move upwards when the mainboard is sensed, the cylinder moves upwards to drive the baffle to move upwards until the upper surface of the baffle is higher than the lower surface of the mainboard), when the mainboard moves along with the conveying belt 11 to be in contact with the baffle, the baffle blocks the mainboard to continue moving, the laser ranging probes are infrared ranging sensors and are used for measuring the heights of four corners of a power device so as to prevent the power device from being locally overhigh and influencing the installation of a radiator above the power device or being crushed by the radiator, when the detected height of the power device module 3 is within a qualified range, the display screen displays the qualification range and outputs a signal to a PLC of a production line, and the controller gives a command for the cylinder to move downwards, the cylinder moves downwards to drive the baffle to move downwards, so that the object 4 continues to move to leave the receiving unit 1, and when the distance between the detection value of the second proximity switch 2 and the object 3 is suddenly increased from the preset distance L', the mainboard is indicated to fall off from the transportation unit; when the height of the power component module 3 is judged to be out of the preset range, the controller gives an instruction that the cylinder does not move, the baffle still prevents the object from moving at the moment, and the sound-light alarm reminds staff to pick out the main board for reexamination.
The method for detecting the welding height by the device for detecting the welding height comprises the following steps:
1. after the PCB mainboard is completed with the welding of the power component module at the welding post, the PCB mainboard is transported to the inspection post through a production line track.
2. The baffle cylinder is in a rising state initially, and the main board is blocked by the baffle and stops advancing after entering.
3. At the moment, the first proximity switch senses a main board signal, and the four laser ranging probes start to detect the height of the surface of the module from the probes.
4. And the display and signal processing unit converts the electric signal into a digital signal and displays the digital signal after receiving the probe signal.
5. And automatically comparing the upper limit value and the lower limit value with the set upper limit value and lower limit value to realize automatic judgment and display qualification or disqualification.
6. And when the detected height of the main board module is within the qualified range, the display screen displays the PLC which is qualified and outputs a signal to the assembly line.
7. After the PLC receives the qualified signal, the stop block falls down to flow out of the main board, and when the main board completely passes through the second proximity switch (also called as an inductive switch), the stop block rises.
8. When the detected height of the main board module exceeds the qualified range, the display screen displays unqualified display and gives an audible and visual alarm to remind staff to pick out the main board for reexamination.
The utility model discloses a following technical problem that is arranged in detecting welding height's device through having multinomial or whole in the above-mentioned characteristic, can solve:
1. the existing testing mode is manual testing, the method is complicated and has human misjudgment, and the device realizes automatic testing of equipment and is error-proof and foolproof;
2. the device realizes on-line test, does not influence production efficiency, and realizes 100% full coverage test.
The utility model discloses a device for detecting weld height is through having multinomial or whole in the above-mentioned characteristic, and the beneficial effect that can realize is: the utility model discloses a realized the high 100% full coverage test of circuit board power device welding, improved efficiency of software testing and test validity.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "bottom", "top", "front", "rear", "inner", "outer", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Although the invention herein has been described with reference to particular embodiments, it is to be understood that these embodiments are merely illustrative of the principles and applications of the present invention. It is therefore to be understood that numerous modifications may be made to the illustrative embodiments and that other arrangements may be devised without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that features described in different dependent claims and herein may be combined in ways different from those described in the original claims. It is also to be understood that features described in connection with individual embodiments may be used in other described embodiments.
Claims (9)
1. An apparatus for detecting a weld height, the apparatus comprising:
the receiving unit is used for receiving an object to be detected, wherein the object is welded with a power component module;
the detection unit is arranged on the receiving unit, and detects the height of the power component module when the object welded with the power component module is positioned on the receiving unit; and
a control unit configured to cause the object having the power component module soldered thereto to exit the receiving unit in response to the detected height being within a preset height range.
2. The apparatus for detecting a welding height according to claim 1, further comprising a display unit connected to the detection unit and the control unit to display the detected height and a result of comparing the detected height with the preset height range.
3. The apparatus for detecting weld height of claim 1, wherein the receiving unit comprises: the two conveying belts are oppositely arranged, and the object welded with the power component module is lapped on the conveying belts.
4. The apparatus of claim 3, wherein the control unit comprises a stop member disposed at an end of the receiving unit to stop the object having the power component module soldered thereon on the receiving unit, wherein the stop member moves downward to move the object having the power component module soldered thereon away from the receiving unit in response to the detected height being within a preset height range.
5. The apparatus for detecting the welding height as set forth in claim 4, wherein the stopper comprises a baffle plate and a cylinder, a piston rod of the cylinder being in contact with the baffle plate to move the baffle plate upward or downward.
6. The apparatus of claim 5, further comprising a first proximity switch and a second proximity switch, wherein the first proximity switch and the second proximity switch are respectively located on both sides of the baffle and between the two conveyor belts, wherein the first proximity switch is configured to sense that the object with the power component module soldered thereon is conveyed to the receiving unit, and the second proximity switch is configured to determine that the object with the power component module soldered thereon leaves the receiving unit.
7. The apparatus for detecting weld height of claim 5, wherein the control unit includes a controller interfacing with the cylinder and the detection unit.
8. The apparatus for detecting a welding height according to claim 1, wherein the detecting unit comprises: and the laser ranging probes are arranged at intervals and are used for detecting the height of the power component module.
9. The device for detecting the welding height as claimed in claim 8, wherein the laser ranging probes are uniformly arranged along the circumferential direction of the power component module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121541791.0U CN215179781U (en) | 2021-07-07 | 2021-07-07 | Device for detecting welding height |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121541791.0U CN215179781U (en) | 2021-07-07 | 2021-07-07 | Device for detecting welding height |
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| CN215179781U true CN215179781U (en) | 2021-12-14 |
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| CN202121541791.0U Active CN215179781U (en) | 2021-07-07 | 2021-07-07 | Device for detecting welding height |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113406106A (en) * | 2021-07-07 | 2021-09-17 | 格力电器（武汉）有限公司 | Device and method for detecting welding height |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113406106A (en) * | 2021-07-07 | 2021-09-17 | 格力电器（武汉）有限公司 | Device and method for detecting welding height |
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