CN108260283B - Constant temperature carrying platform of FPC welding machine - Google Patents
Constant temperature carrying platform of FPC welding machine Download PDFInfo
- Publication number
- CN108260283B CN108260283B CN201810044142.6A CN201810044142A CN108260283B CN 108260283 B CN108260283 B CN 108260283B CN 201810044142 A CN201810044142 A CN 201810044142A CN 108260283 B CN108260283 B CN 108260283B
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- heating
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- power supply
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
- B23K3/08—Auxiliary devices therefor
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
- H05K3/32—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits
- H05K3/34—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by soldering
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Mechanical Engineering (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Combinations Of Printed Boards (AREA)
Abstract
The invention belongs to the technical field of FPC welding, and provides a constant-temperature carrying platform of an FPC welding machine, which is characterized in that a welding carrying platform comprising an air passage, a suction hole for adsorbing an FPC and a pipe groove is arranged to adsorb and fix the FPC, a heating pipe is arranged in the pipe groove and is used for heating the welding carrying platform when the heating pipe is communicated with a heating power supply or stopping heating the welding carrying platform when the heating pipe is disconnected with the heating power supply, the heating temperature of the heating pipe is obtained by detection through being connected with a heating pipe lead, and a heating monitoring device for controlling the connection or disconnection of the heating power supply and the heating pipe is controlled according to the heating temperature, so that the fixation of the FPC is realized, the temperature constancy of the welding carrying platform is realized, and the purposes of improving the adaptability and the stability of the welding machine under different environmental temperatures and ensuring the welding quality of.
Description
Technical Field
The invention belongs to the technical field of FPC welding, and particularly relates to a constant-temperature carrying platform of an FPC welding machine.
Background
In the process of soldering an LCD (Liquid Crystal Display) to an FPC, the FPC needs to be fixed to a soldering stage to receive soldering of a soldering head.
However. Most of welding carrying platforms of the existing FPC welding machines fix the FPC by physically contacting the FPC through limiting blocks or fixing grooves, and the FPC is easily damaged by physical contact type fixing. In addition, the welding carrier of the existing FPC welding machine cannot keep a stable temperature state, the temperature change of the carrier under different environmental temperatures is large, the welding stability of the welding machine is easy to reduce, and the welding quality of the FPC welding machine cannot be guaranteed.
In conclusion, the welding carrier of the existing FPC welding machine has the technical problems that the FPC is easy to damage due to contact fixation and the welding quality is difficult to guarantee due to inconsistent temperature.
Disclosure of Invention
The invention aims to provide a constant-temperature carrying platform of an FPC (flexible printed circuit) welding machine, aiming at solving the technical problems that the FPC is easy to damage by contact type fixation and the welding quality is difficult to ensure due to inconstant temperature of the FPC during the welding of the traditional FPC welding machine.
In order to achieve the above object, in a first implementation scheme, the present invention provides a constant temperature stage of an FPC bonding machine, for fixing an FPC bonded to an LCD, comprising:
a welding stage comprising: the gas path channel, the suction hole and the pipe groove;
the gas path channel is arranged inside the welding carrier and penetrates through the side surface of the welding carrier to form a vacuumizing port; the suction hole penetrates through the surface of the welding carrier platform and is communicated with the air channel, and the suction hole is used for adsorbing the FPC; the pipe groove is arranged inside the welding carrier and penetrates through the side surface of the welding carrier;
the air nozzle is arranged at the vacuumizing port and is connected with the vacuumizing device;
the heating tube is arranged in the tube groove; the heating tube is used for heating the welding carrier when being communicated with the heating power supply or stopping heating the welding carrier when being disconnected with the heating power supply so as to keep the welding carrier at a constant temperature;
the heating power supply is connected with the heating monitoring device through a lead;
the heating monitoring device is connected with the heating tube through a lead; the heating monitoring device detects and obtains the heating temperature of the heating tube and controls the heating power supply to be connected with or disconnected from the heating tube according to the heating temperature.
With reference to the first implementable approach, in a second implementable approach, the heating monitoring device compares the heating temperature with a preset constant temperature value;
and when the heating temperature is higher than the preset constant temperature value, the heating monitoring device controls the heating pipe to stop heating.
With reference to the first implementable aspect, in a third implementable aspect, the heating monitoring device compares the heating temperature with a preset constant temperature value;
when the heating temperature is lower than the preset constant temperature value, the heating monitoring device controls the heating pipe to heat.
With reference to the first implementable aspect, in a fourth implementable aspect, the heat generation monitoring device includes:
a temperature sensor installed near the heating tube; the temperature sensor is used for detecting the heating temperature of the heating tube to obtain a heating temperature signal representing the heating temperature and outputting the heating temperature signal;
the temperature control meter is connected with a heating temperature signal output end of the temperature sensor to obtain the heating temperature signal; the temperature control meter outputs a switch control signal according to the heating temperature;
the switching device is connected with a switching control signal output end of the temperature control meter to obtain the switching control signal;
the switch device responds to the switch control signal to enable the heating power supply to be connected with or disconnected from the heating tube.
With reference to the fourth implementable scenario, in a fifth implementable scenario, the temperature control meter compares the heating temperature with the preset constant temperature value;
when the heating temperature is lower than the preset constant temperature value, the temperature control meter outputs the switch control signal for controlling the heating power supply to be communicated with the heating tube.
With reference to the fourth implementable scenario, in a sixth implementable scenario, the temperature control meter compares the heating temperature with the preset constant temperature value;
when the heating temperature is higher than the preset constant temperature value, the temperature control meter outputs the switch control signal for controlling the heating power supply and the heating tube to be disconnected.
With reference to the fifth implementable aspect, in a seventh implementable aspect, the switching device includes:
an intermediate relay, comprising: a normally open contact and a normally closed contact; the normally open contact is connected with the switch control signal output end of the temperature control meter;
a solid state relay, comprising: the control power end, the heating power connection contact and the heating tube connection contact are connected;
the control power supply end is connected with the normally closed contact; the heating power supply connecting contact is connected with the heating power supply; the heating tube connecting contact is connected with the heating tube;
when the heating temperature is lower than the preset constant temperature value, the normally open contact is communicated with the normally closed contact, and the heating power supply connecting contact is communicated with the heating tube connecting contact.
With reference to the sixth implementable aspect, in an eighth implementable aspect, the switching device includes:
an intermediate relay, comprising: a normally open contact and a normally closed contact; the normally open contact is connected with the switch control signal output end of the temperature control meter;
a solid state relay, comprising: the control power end, the heating power connection contact and the heating tube connection contact are connected;
the control power supply end is connected with the normally closed contact; the heating power supply connecting contact is connected with the heating power supply; the heating tube connecting contact is connected with the heating tube;
when the heating temperature is higher than the preset constant temperature value, the normally open contact and the normally closed contact are disconnected, and the heating power supply connecting contact and the heating tube connecting contact are disconnected.
With reference to the fourth implementable aspect, in a ninth implementable aspect, the temperature sensor is a thermocouple.
The constant temperature carrying platform of the FPC welding machine obtained by the scheme is provided with the welding carrying platform which comprises an air passage, a suction hole for adsorbing FPC and a pipe groove, wherein the air passage is arranged inside the welding carrying platform and penetrates through the side surface of the welding carrying platform to form a vacuumizing opening, the suction hole penetrates through the surface of the welding carrying platform and is communicated with the air passage, the pipe groove is arranged inside the welding carrying platform and penetrates through the side surface of the welding carrying platform, an air nozzle connected with a vacuumizing device is arranged at the vacuumizing opening, a heating pipe used for heating the welding carrying platform when being communicated with a heating power supply or stopping heating the welding carrying platform when being disconnected with the heating power supply is arranged in the pipe groove, a heating temperature of the heating pipe is obtained by detecting and being connected with a heating pipe lead, and a heating monitoring device used for controlling the connection or disconnection of the heating power supply and the heating pipe is controlled according to the heating temperature, therefore, the fixing of the FPC is realized, the constant temperature of the welding carrier is realized, and the purpose of improving the stability of the welding machine at different environmental temperatures to ensure the welding quality of the FPC is achieved.
Drawings
FIG. 1 is a schematic structural diagram of a constant temperature stage of an FPC bonding machine provided by an embodiment of the invention;
FIG. 2 is a schematic view of a thermostatic stage of the FPC bonder of FIG. 1;
FIG. 3 is a schematic view of a thermostatic stage of the FPC bonder of FIG. 1;
fig. 4 is a schematic circuit diagram of the heat generation monitoring device in fig. 1.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In order to solve the technical problems that the FPC is easy to damage by contact type fixing and the welding quality is difficult to guarantee due to the fact that the temperature is not constant in the welding carrier of the existing FPC welding machine, the invention provides a constant temperature carrier of an FPC welding machine for fixing the FPC welded on an LCD (S9) (S8) with reference to FIGS. 1-4.
Referring to fig. 1 and 4, the thermostatic stage of the FPC bonder includes: welding stage S6, air cock S7, heating tube S0, heating power supply S4 and heating monitoring device.
In one aspect, referring to fig. 1-3, welding stage S6 includes: air passage S60, suction hole S62 and tube slot S61.
The air passage S60 is disposed inside the welding stage S6, and penetrates the side surface of the welding stage S6 to form a vacuum-pumping port S63.
The suction hole S62 penetrates the surface of the soldering stage S6 to communicate with the air passage S60, and the suction hole S62 is used for sucking the FPC (S8).
The tube slot S61 is disposed inside the welding stage S6 and penetrates a side surface of the welding stage S6.
On the other hand, an air nozzle S7 is installed at the vacuum port S63 for connection with a vacuum device (not shown).
It should be noted that, a vacuum extractor (not shown) may extract the gas inside the welding stage S6 through the gas nozzle S7 on the side of the welding stage S6, so that the air passage S60 inside the welding stage S6 is in a vacuum state, and further the suction holes S62 communicating with the air passage S60 generate a suction force to suck and fix the FPC (S8).
On the other hand, a heat generation pipe S0 is installed in the pipe bath S61.
Wherein the heat-generating pipe S0 is used for heating the welding stage S6 when communicating with the heating power source S4 or for stopping heating the welding stage S6 when disconnecting from the heating power source S4, so that the welding stage S6 is kept at a constant temperature.
It should be noted that the heat generating tube S0 may be made of a material that generates heat when current flows through it.
On the other hand, the heating power supply S4 is connected to the heat generation monitoring device by a wire.
It should be noted that the heating monitoring device can control the heating power source S4 to be connected to or disconnected from the heating tube S0, so that the heating tube S0 generates heat due to conduction or stops generating heat due to power failure.
On the other hand, the heat generation monitoring device is connected to the heat generation tube S0 by a wire.
The heating monitoring device detects and obtains the heating temperature of the heating tube S0, and controls the heating power supply S4 to be connected with or disconnected from the heating tube S0 according to the heating temperature.
For example, the heat generation monitoring device may compare the detected heat generation temperature with a preset constant temperature value, and perform corresponding heat generation control according to the following comparison result:
first, when the heating temperature is higher than the preset constant temperature value, the heating monitoring device controls the heating pipe S0 to stop heating.
In addition, when the heating temperature is lower than the preset constant temperature value, the heating monitoring device controls the heating pipe S0 to heat.
Specifically, referring to fig. 4, the heat generation monitoring device includes: a temperature sensor S2, a temperature control meter S3 and a switch device (K, S1).
First, the temperature sensor S2 is installed near the heat generating tube S0.
It should be noted that the temperature sensor S2 is configured to detect the heating temperature of the heating tube S0 to obtain a heating temperature signal representing the heating temperature, and then output the heating temperature signal through the heating temperature signal output terminals (K1+, K1-).
The temperature sensor S2 may be a thermocouple.
In addition, the temperature control meter S3 is connected with the heating temperature signal output end (K1+, K1-) of the temperature sensor S2 to obtain the heating temperature signal, and the temperature control meter S3 outputs a switch control signal according to the heating temperature.
For example, the temperature control table S3 compares the heat generation temperature with the preset constant temperature value,
when the heating temperature is lower than the preset constant temperature value, the temperature control meter S3 outputs the switch control signal for controlling the communication between the heating power supply S4 and the heating tube S0.
For another example, the temperature control table S3 compares the heating temperature with the preset constant temperature value,
when the heating temperature is higher than the preset constant temperature value, the temperature control meter S3 outputs the switch control signal for controlling the heating power supply S4 to be disconnected from the heating tube S0.
After the temperature control table S3 obtains the heating temperature signal, the temperature control table S3 obtains the heating temperature of the heating tube S0 because the heating temperature signal can represent the heating temperature of the heating tube S0.
In addition, the temperature control table S3 has a comparison circuit integrated therein, and the reference value of the comparison circuit can be set as a preset constant temperature value to be compared with the heat generation temperature.
In addition, the temperature control meter S3 may be connected to a temperature control meter power supply S5 to obtain an operating voltage.
In addition, a switching device (K, S1) is connected to the switching control signal output terminal (TC1+, TC1-) of the thermometer S3 to obtain the switching control signal, and then responds to the switching control signal to connect or disconnect the heating power source S4 and the heat generating tube S0.
Specifically, the switching device (K, S1) includes: an intermediate relay K and a solid state relay S1.
First, the intermediate relay K includes: a normally open contact b and a normally closed contact d. The normally open contact b is connected with the positive output end TC1+ of the switch control signal output end (TC1+, TC1-) of the temperature control meter S3.
The normally open contact b is used for acquiring the switch control signal output by the switch control signal output terminal (TC1+, TC1-) of the temperature control meter S3.
In addition, when the normally open contact b is communicated with the normally closed contact d, the intermediate relay K is conducted to output a switch control signal acquired by the normally open contact b through the normally closed contact d.
In addition, the solid-state relay S1 includes: a control power supply end (V +, V-), a heating power supply connecting contact A and a heating tube connecting contact C.
The positive electrode V + of the control power supply end (V +, V-) is connected with the normally closed contact d, the negative electrode V-of the control power supply end (V +, V-) is connected with the negative output end TC 1-of the switch control signal output end (TC1+, TC1-), the heating power supply connection contact A is connected with the heating power supply S4, and the heating tube connection contact C is connected with the heating tube S0.
It should be noted that, when the heating temperature is lower than the preset constant temperature value, the normally open contact b is communicated with the normally closed contact d, and the heating power supply connection contact a is communicated with the heating tube connection contact C, so that the heating tube S0 is communicated with the heating power supply S4 to heat the welding carrier S6, and further the welding carrier S6 is kept at a constant temperature to adapt to different environmental temperatures, thereby ensuring the welding quality of the welding machine.
In addition, when the heating temperature is higher than the preset constant temperature value, the normally open contact b and the normally closed contact d are disconnected, the heating power supply connecting contact A is disconnected with the heating tube connecting contact C, so that the heating tube S0 is disconnected with the heating power supply S4 to stop heating the welding carrying platform S6, and further the welding carrying platform S6 is kept at a constant temperature to adapt to different environmental temperatures, so that the welding quality of the welding machine is ensured.
The constant temperature stage of the FPC bonding machine obtained by the above-mentioned implementable scheme is provided with a welding stage S6 including an air passage S60, a suction hole S62 for sucking an FPC (S8), and a tube slot S61, wherein the air passage S60 is provided inside the welding stage S6 and penetrates through a side surface of the welding stage S6 to form a vacuum port S63, the suction hole S62 penetrates through a surface of the welding stage S6 to be connected to the air passage S60, the tube slot S61 is provided inside the welding stage S6 and penetrates through a side surface of the welding stage S6, and a heat generating tube S0 for heating the welding stage S6 when communicating with a vacuum pumping device (not shown) is further installed in the vacuum port S63 and a heat generating tube S0 for heating the welding stage S6 when communicating with a heating power source S4 or for detecting a temperature of the heating tube S0 connected to the heating power source S4 by a wire is further installed in the tube slot S61, and the heating monitoring device which is connected or disconnected with the heating power supply S4 and the heating tube S0 is controlled according to the heating temperature, so that the FPC (S8) is fixed, the temperature of the welding carrying platform S6 is constant, and the purpose of improving the stability of the welding machine at different environmental temperatures to ensure the welding quality of the FPC (S8) is achieved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (4)
1. The utility model provides a constant temperature microscope carrier of FPC welding machine for fixed last welded FPC of LCD, its characterized in that includes:
a welding stage comprising: the gas path channel, the suction hole and the pipe groove;
the gas path channel is arranged inside the welding carrier and penetrates through the side surface of the welding carrier to form a vacuumizing port; the suction hole penetrates through the surface of the welding carrier platform and is communicated with the air channel, and the suction hole is used for adsorbing the FPC; the pipe groove is arranged inside the welding carrier and penetrates through the side surface of the welding carrier;
the air nozzle is arranged at the vacuumizing port and is connected with the vacuumizing device;
the heating tube is arranged in the tube groove; the heating tube is used for heating the welding carrier when being communicated with the heating power supply or stopping heating the welding carrier when being disconnected with the heating power supply so as to keep the welding carrier at a constant temperature;
the heating power supply is connected with the heating monitoring device through a lead;
the heating monitoring device is connected with the heating tube through a lead; the heating monitoring device detects and obtains the heating temperature of the heating tube and controls the connection or disconnection of the heating power supply and the heating tube according to the heating temperature; the heat generation monitoring device includes: a temperature sensor installed near the heating tube; the temperature sensor is used for detecting the heating temperature of the heating tube to obtain a heating temperature signal representing the heating temperature and outputting the heating temperature signal; the temperature control meter is connected with a heating temperature signal output end of the temperature sensor to obtain the heating temperature signal, and a comparison circuit is integrated in the temperature control meter; the temperature control meter outputs a switch control signal according to the heating temperature; the switching device is connected with a switching control signal output end of the temperature control meter to obtain the switching control signal; the switch device responds to the switch control signal to connect or disconnect the heating power supply with the heating tube;
the heating monitoring device compares the heating temperature with a preset constant temperature value: when the heating temperature is higher than the preset constant temperature value, the heating monitoring device controls the heating pipe to stop heating; when the heating temperature is lower than the preset constant temperature value, the heating monitoring device controls the heating pipe to heat; when the heating temperature is lower than the preset constant temperature value, the temperature control meter outputs the switch control signal for controlling the heating power supply to be communicated with the heating tube; when the heating temperature is higher than the preset constant temperature value, the temperature control meter outputs the switch control signal for controlling the heating power supply and the heating tube to be disconnected.
2. The thermostatic stage of an FPC bonder of claim 1, wherein said switching device includes:
an intermediate relay, comprising: a normally open contact and a normally closed contact; the normally open contact is connected with the switch control signal output end of the temperature control meter;
a solid state relay, comprising: the control power end, the heating power connection contact and the heating tube connection contact are connected;
the control power supply end is connected with the normally closed contact; the heating power supply connecting contact is connected with the heating power supply; the heating tube connecting contact is connected with the heating tube;
when the heating temperature is lower than the preset constant temperature value, the normally open contact is communicated with the normally closed contact, and the heating power supply connecting contact is communicated with the heating tube connecting contact.
3. The thermostatic stage of an FPC bonder of claim 1, wherein said switching device includes:
an intermediate relay, comprising: a normally open contact and a normally closed contact; the normally open contact is connected with the switch control signal output end of the temperature control meter;
a solid state relay, comprising: the control power end, the heating power connection contact and the heating tube connection contact are connected;
the control power supply end is connected with the normally closed contact; the heating power supply connecting contact is connected with the heating power supply; the heating tube connecting contact is connected with the heating tube;
when the heating temperature is higher than the preset constant temperature value, the normally open contact and the normally closed contact are disconnected, and the heating power supply connecting contact and the heating tube connecting contact are disconnected.
4. The thermostatic stage of an FPC bonder of claim 1, wherein said temperature sensor is a thermocouple.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810044142.6A CN108260283B (en) | 2018-01-17 | 2018-01-17 | Constant temperature carrying platform of FPC welding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810044142.6A CN108260283B (en) | 2018-01-17 | 2018-01-17 | Constant temperature carrying platform of FPC welding machine |
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| CN108260283A CN108260283A (en) | 2018-07-06 |
| CN108260283B true CN108260283B (en) | 2020-12-22 |
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| CN201810044142.6A Expired - Fee Related CN108260283B (en) | 2018-01-17 | 2018-01-17 | Constant temperature carrying platform of FPC welding machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110231521B (en) * | 2019-01-23 | 2023-12-22 | 重庆大学 | Component temperature characteristic testing device |
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| CN202196339U (en) * | 2011-08-12 | 2012-04-18 | 江苏省特种设备安全监督检验研究院常州分院 | Low temperature gas cylinder interlayer vacuum-pumping heating device |
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| CN108260283A (en) | 2018-07-06 |
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