CN110608670A - Light curtain detection device and electrochemical treatment equipment - Google Patents
Light curtain detection device and electrochemical treatment equipment Download PDFInfo
- Publication number
- CN110608670A CN110608670A CN201910842955.4A CN201910842955A CN110608670A CN 110608670 A CN110608670 A CN 110608670A CN 201910842955 A CN201910842955 A CN 201910842955A CN 110608670 A CN110608670 A CN 110608670A
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- light curtain
- protective shell
- detection
- unit
- detection device
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- 238000001514 detection method Methods 0.000 title claims abstract description 92
- 230000001681 protective effect Effects 0.000 claims abstract description 59
- 238000009713 electroplating Methods 0.000 claims description 15
- 238000005868 electrolysis reaction Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims description 2
- 230000003247 decreasing effect Effects 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 description 24
- 239000000047 product Substances 0.000 description 20
- 239000011265 semifinished product Substances 0.000 description 17
- 238000000034 method Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000007689 inspection Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000005693 optoelectronics Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D17/00—Constructional parts, or assemblies thereof, of cells for electrolytic coating
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D7/00—Electroplating characterised by the article coated
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
Abstract
A light curtain detection device comprises a light curtain emission unit and a light curtain receiving unit, wherein the light curtain receiving unit is arranged opposite to the light curtain emission unit and receives light beams emitted by the light curtain emission unit; the light curtain transmitting unit and the light curtain receiving unit are respectively arranged outside the first protective shell and the second protective shell; a detection channel for a product to pass through is formed between the opposite surfaces of the first protective shell and the second protective shell. Compared with a conventional photoelectric switch, the light curtain has a wider detection range; the transparent protective shell can reduce the inaccurate probability of the light curtain sensor structure under the condition that the light curtain sensor structure is influenced by the outside, such as water drops spatter.
Description
Technical Field
The invention relates to the technical field of assembly line detection, in particular to a light curtain detection device and electrochemical treatment equipment.
Background
In the production process of the production line, when the semi-finished products are transferred to the next process, the passing semi-finished products are generally counted or detected to find out whether there are any unfixed semi-finished products. The inspection process is mostly as follows: a sensor is arranged beside the production line and detects each passing semi-finished product, for example, the semi-finished product has a certain shape, then the sensor detects whether the semi-finished product passes or whether a position deviation exists for the semi-finished product, and when the position deviation exceeding a preset range is detected by the sensor, the sensor sends out a detection signal. Especially in the operating mode that needs carry out accurate location processing to semi-manufactured goods, just in case make mistakes in the locating position of semi-manufactured goods, just influence the effect of follow-up manufacturing procedure easily.
A sensor of a common detection device is a photoelectric switch, which is used as one of the sensors and is mainly used for identifying whether a semi-finished product to be processed passes through, but the photoelectric switch is easily influenced by the outside, for example, when liquid exists on the surface of the photoelectric switch, the liquid is easily refracted; however, once the housing is disposed on the surface of the optoelectronic switch, the accuracy of detecting the semi-finished product of the optoelectronic switch is affected.
To solve this problem, chinese patent No. CN106468901A discloses a dynamic light curtain shielding system and method, which uses a light curtain to detect whether a semi-finished product passes through, and when a product enters a protection area of the light curtain during a shielding mode, the system recognizes a highest interrupted light beam, which indicates the height of the product. The system then sets the mask height of the light curtain based on this highest interrupted beam. The beams above the set mask height are not masked and the beams up to the set mask height are still masked.
The device is mainly used for detecting the passing height of the semi-finished products and judging whether the semi-finished products with correct positions pass or not according to the height. This device is more suitable for the inspection of products transported on a conveyor belt, in the case of suspended semi-finished products, in which the devices for suspending the semi-finished products are generally kept at a constant height, and the system is able to recognize the highest interrupted light beam when passing through the light curtain, but is unable to recognize whether the suspended semi-finished product is suspended correctly.
Disclosure of Invention
Therefore, the technical problem to be solved by the present invention is to overcome the defect in the prior art that it is difficult to accurately detect the position of the semi-finished product, thereby providing a light curtain detection apparatus.
A light curtain detection device, comprising:
the light curtain emission unit emits a unidirectional light beam;
the light curtain receiving unit is arranged opposite to the light curtain transmitting unit and receives the light beams emitted by the light curtain transmitting unit; the light curtain transmitting unit and the light curtain receiving unit are respectively arranged outside the first protective shell and the second protective shell;
a detection channel for a product to pass through is formed between the opposite surfaces of the first protective shell and the second protective shell.
Further, a guiding unit for guiding the product to enter the detection channel is arranged at the inlet end of the detection channel on the first protection shell and/or the second protection shell.
Further, the guide unit includes an opening provided at the inlet end, the opening being gradually reduced in the product moving direction.
Further, the first protective shell and the second protective shell respectively comprise a first detection plane and a second detection plane, the first detection plane and the second detection plane are arranged oppositely and in parallel, and the detection channel is formed between the first detection plane and the second detection plane.
Furthermore, the first protective shell and/or the second protective shell are/is located the entry end is equipped with the guide inclined plane, the guide inclined plane with first detection plane and/or second detection plane are the connection of contained angle.
Further, the first protective shell and the second protective shell are arranged in a central symmetry mode by taking the detection channel as a center.
An electrochemical processing apparatus, comprising:
the working tank is filled with a conductive solution;
the detection device is arranged at the upstream of the product transportation direction of the working groove, and the detection device is the light curtain detection device;
and the electrochemical processing device is arranged in the working tank and is positioned at the downstream of the detection device.
Further, the electrochemical treatment device is an electrolysis device, and the product is a PCB (printed Circuit Board); or, the electrochemical treatment device is an electroplating device, and the product is a PCB.
Further, the product detection device comprises a transmission unit and a fixing unit, wherein the fixing unit is used for fixing the product, the transmission unit is used for driving the fixing unit to transmit the product along a transmission path, and the detection channel is positioned on the transmission path.
Further, the light curtain detection device at least detects the outline of any side of the product which is not connected with the fixing unit.
The technical scheme of the invention has the following advantages:
1. compared with a conventional photoelectric switch, the light curtain transmitting unit and the light curtain receiving unit provided by the invention have the advantages that the range which can be detected by the light curtain is wider, products at farther distances can be detected, and products within the range of 1m can be accurately detected; the height measurement precision can be accurate to 2.5 mm.
2. The transparent protective shell provided by the invention can reduce the inaccuracy probability of the light curtain sensor structure under the condition that the light curtain sensor structure is influenced by the outside, such as water drops spatter.
3. The guide inclined plane of the protective shell provided by the invention can facilitate a PCB to enter the front end of the detection channel through a larger opening size when a plate-shaped semi-finished product, such as the PCB, enters the detection channel, and then gradually introduce the PCB into the detection channel with a narrower size through the guide inclined plane.
4. The electrochemical treatment equipment provided by the invention is provided with the light curtain detection device, so that whether the placement position of the PCB is correct or not can be accurately detected before the PCB enters the treatment process.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a front view of a light curtain detection device;
FIG. 2 is a top view of the light curtain detection device;
fig. 3 is a schematic structural diagram of the light curtain detection device used in cooperation with the transmission unit.
Description of reference numerals:
1. a light curtain emission unit; 2. a light curtain receiving unit; 3. a protective shell; 31. a first protective case; 311. a first detection plane; 312. a second detection plane; 32. a second protective shell; 33. a guide ramp; 4. a detection channel; 5. a guide unit; 6. a transmission unit; 7. and a fixing unit.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., 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 thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Examples
An electrochemical treatment device comprises a working tank, wherein a conductive solution is contained in the working tank, an electrochemical treatment device which is soaked in an electrolyte is arranged in the working tank, and the electrochemical treatment device comprises a cathode plate and an anode plate, wherein the electrochemical treatment device in the embodiment can be an electrolysis device or an electroplating device; when the electroplating device is used as electroplating equipment, the electrochemical treatment device is an electroplating device, the working tank is an electroplating tank, electroplating solution is contained in the electroplating tank, and the cathode plate and the anode plate are electrified to realize electroplating reaction. And the detection device and the working groove are sequentially arranged along the conveying direction of the semi-finished PCB.
As shown in fig. 3, the electrochemical processing apparatus includes a transmission unit 6 and a fixing unit 7, the transmission of the PCB is performed by the transmission unit 6 and the fixing unit 7, the fixing unit 7 fixes the PCB, and the transmission unit 6 drives the fixing unit 7 to transmit the PCB along a transmission path, wherein the detection channel 4 is located on the transmission path. The fixing unit 7 in this embodiment is an electroplating clip; the transmission unit 6 drives the electroplating clamp to transmit the PCB along the transmission path, and drives the PCB to pass through the detection channel 4. The transmission unit 6 comprises a belt transmission or chain transmission structure, a motor fixed on an external frame drives a transmission belt or a transmission chain, the electroplating clamp is fixed on the transmission belt or the transmission chain, and the transmission belt or the transmission chain drives the PCB to move.
The detection device of this embodiment is light curtain detection device, and the work groove is located light curtain detection device's low reaches, and light curtain detection device is at least to the product is not pressed from both sides arbitrary one side profile of being connected with electroplating and is detected. The PCB detected by the light curtain detection device enters the working tank to react.
As shown in fig. 1, the light curtain detection device of the present embodiment includes: a light curtain emitting unit 1 and a light curtain receiving unit 2 for receiving the unidirectional light beam emitted by the light curtain emitting unit 1. The light curtain emitting unit 1 and the light curtain receiving unit 2 are both arranged in two vertical rod-shaped structures and are arranged oppositely. The surface of the unidirectional light beam is vertical to the surface of the PCB. It should be noted that the positions of the light curtain transmission unit 1 and the light curtain reception unit 2 in fig. 1 may be intermodulation.
As shown in fig. 1 and 2, protective cases 3 are respectively disposed outside the light curtain emission unit 1 and the light curtain receiving unit 2, the protective cases 3 are made of transparent materials, and the protective cases 3 seal and protect the light curtain emission unit 1 and the light curtain receiving unit 2. The sealing means that can be used are: the edge of the protective shell 3 is stuck on the outer boundary wall by gluing, or screwed down by screws, and a sealing strip is embedded in a gap between the protective shell 3 and the outer boundary wall.
As shown in fig. 1 and 2, the protective case 3 is divided into a first protective case 31 and a second protective case 32 which are respectively covered outside the light curtain emission unit 1 and the light curtain reception unit 2, and the first protective case 31 and the second protective case 32 have the same cross-sectional shape (cross-section means a section perpendicular to a plane of the PCB board). A detection channel 4 for a product to pass through is formed between the opposite surfaces of the first protective shell 31 and the second protective shell 32, and the first protective shell 31 and the second protective shell 32 are symmetrically arranged by taking the detection channel 4 as a center. Specifically, the detection channel 4 is a channel formed between a first detection plane 311 and a second detection plane 312 of the first protection shell 31 and the second protection shell 32, wherein the first detection plane 311 is opposite to and parallel to the second detection plane 312, and the light curtain emission unit 1 and the light curtain receiving unit 2 are respectively arranged close to the inner walls of the first detection plane 311 and the second detection plane 312 of the detection channel 4.
Wherein the inlet ends of the first protective shell 31 and the second protective shell 32 form a wedge-shaped guide unit 5 guiding the product into the detection channel 4, the guide unit 5 comprising an opening provided at the inlet end, wherein the opening is gradually reduced in the product moving direction. Referring to fig. 2, a guiding inclined plane 33 is disposed at an inlet end of the first protective shell 31 and/or the second protective shell 32, and the guiding inclined plane 33 is connected to the first detecting plane 311 or the second detecting plane 312 at an included angle. That is, the guide slope 33 may be provided at the entrance of the first protective case 31, or at the entrance of the second protective case 32, or at both of the first protective case 31 and the second protective case 32. In the present embodiment, the first protective case 31 and the second protective case 32 are both provided with the guide slopes 33. The guiding unit 5 is formed between the two guiding inclined planes 33, that is, the guiding inclined plane 33 on the first protecting shell 31 is in transition connection with the first detecting plane 311 at an angle, and the guiding inclined plane 33 on the second protecting shell 32 is in transition connection with the second detecting plane 312 at an angle. The end with the smaller opening of the guide unit 5 is connected with the detection channel 4, the end with the larger opening is the entrance end of the PCB, the end with the larger opening is the opening at the entrance end of the guide unit 5, and the opening is gradually reduced along the moving direction of the product; the PCB can enter the guide unit 5 and then enter the detection channel 4.
The working process of the embodiment of the invention is as follows:
the PCB is clamped on the electroplating clamp, enters the detection channel 4 through the guide unit 5 and passes through the light curtain detection device, and the light curtain detection device checks whether the clamped position is correct or not; the light curtain receiving unit 2 judges the position of the PCB corresponding to the shielded light beam by receiving the one-way light beam emitted by the light curtain emitting unit 1 and detecting the position of the one-way light beam, for example, the situation of the PCB such as the inclination caused by the length and width inversion or the loosening of the clamping part. Once these circumstances appear, light curtain detection device sends the signal and transmits to control center department such as computer to remind operating personnel to carry out the adjustment to centre gripping PCB board.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (10)
1. A light curtain detection device, comprising:
a light curtain emission unit (1) emitting a unidirectional light beam;
the light curtain receiving unit (2) is arranged opposite to the light curtain transmitting unit (1) and receives the light beams emitted by the light curtain transmitting unit (1); the transparent protective shell (3) comprises a first protective shell (31) and a second protective shell (32) which are arranged in a sealing mode respectively, and the light curtain transmitting unit (1) and the light curtain receiving unit (2) are arranged in the first protective shell (31) and the second protective shell (32) respectively;
a detection channel (4) for products to pass through is formed between the opposite surfaces of the first protective shell (31) and the second protective shell (32).
2. The light curtain detection device according to claim 1, characterized in that a guiding unit (5) guiding the product into the detection channel (4) is arranged on the first protective shell (31) and/or the second protective shell (32) at the inlet end of the detection channel (4).
3. The light curtain detection device according to claim 2, characterized in that the guiding unit (5) comprises an opening provided at the entrance end, which opening is gradually decreasing in the product moving direction.
4. The light curtain detection device according to claim 3, wherein the first protective shell (31) and the second protective shell (32) respectively comprise a first detection plane (311) and a second detection plane (312), the first detection plane (311) and the second detection plane (312) are arranged opposite and parallel, and the detection channel (4) is formed between the first detection plane (311) and the second detection plane (312).
5. The light curtain detection device according to claim 4, characterized in that a guiding inclined plane (33) is arranged on the first protective shell (31) and/or the second protective shell (32) at the entrance end, and the guiding inclined plane (33) is connected with the first detection plane (311) and/or the second detection plane (312) in an included angle.
6. The light curtain detection device according to any one of claims 1 to 5, wherein the first protective shell (31) and the second protective shell (32) are arranged symmetrically around the detection channel (4).
7. An electrochemical processing apparatus characterized by comprising:
the working tank is filled with a conductive solution;
a detection device arranged at the upstream of the product conveying direction of the working groove, wherein the detection device is the light curtain detection device as claimed in any one of claims 1 to 6;
and the electrochemical processing device is arranged in the working tank and is positioned at the downstream of the detection device.
8. The electrochemical processing apparatus of claim 7, wherein the electrochemical processing device is an electrolysis device, and the product is a PCB board; or, the electrochemical treatment device is an electroplating device, and the product is a PCB.
9. The electrochemical processing apparatus according to claim 7, further comprising a transport unit (6) and a fixing unit (7), the fixing unit (7) fixing the product, the transport unit (6) driving the fixing unit (7) to transport the product along a transport path on which the detection channel (4) is located.
10. The electrochemical processing apparatus according to claim 9, wherein: the light curtain detection device at least detects the outline of any side of the product which is not connected with the fixing unit (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910842955.4A CN110608670A (en) | 2019-09-06 | 2019-09-06 | Light curtain detection device and electrochemical treatment equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910842955.4A CN110608670A (en) | 2019-09-06 | 2019-09-06 | Light curtain detection device and electrochemical treatment equipment |
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| Publication Number | Publication Date |
|---|---|
| CN110608670A true CN110608670A (en) | 2019-12-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910842955.4A Pending CN110608670A (en) | 2019-09-06 | 2019-09-06 | Light curtain detection device and electrochemical treatment equipment |
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| Country | Link |
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| CN (1) | CN110608670A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116183181A (en) * | 2023-04-13 | 2023-05-30 | 伟龙意程智能科技(江苏)有限公司 | Elevator light curtain beam testing method and device |
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| JP2011034141A (en) * | 2009-07-29 | 2011-02-17 | Toshiba Tec Corp | Coin recycling device |
| CN102681025A (en) * | 2012-06-11 | 2012-09-19 | 易程(苏州)电子科技股份有限公司 | Monitoring system for railway passenger ticket checking channel |
| EP2657727A1 (en) * | 2012-04-26 | 2013-10-30 | Leuze electronic GmbH + Co KG | Light curtain |
| CN108070898A (en) * | 2016-11-18 | 2018-05-25 | 无锡深南电路有限公司 | A kind of plating golden finger line automatic control system and method |
| CN210802363U (en) * | 2019-09-06 | 2020-06-19 | 昆山东威科技股份有限公司 | Light curtain detection device and electrochemical treatment equipment |
-
2019
- 2019-09-06 CN CN201910842955.4A patent/CN110608670A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011034141A (en) * | 2009-07-29 | 2011-02-17 | Toshiba Tec Corp | Coin recycling device |
| EP2657727A1 (en) * | 2012-04-26 | 2013-10-30 | Leuze electronic GmbH + Co KG | Light curtain |
| CN102681025A (en) * | 2012-06-11 | 2012-09-19 | 易程(苏州)电子科技股份有限公司 | Monitoring system for railway passenger ticket checking channel |
| CN108070898A (en) * | 2016-11-18 | 2018-05-25 | 无锡深南电路有限公司 | A kind of plating golden finger line automatic control system and method |
| CN210802363U (en) * | 2019-09-06 | 2020-06-19 | 昆山东威科技股份有限公司 | Light curtain detection device and electrochemical treatment equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116183181A (en) * | 2023-04-13 | 2023-05-30 | 伟龙意程智能科技(江苏)有限公司 | Elevator light curtain beam testing method and device |
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