Vehicle body electrophoresis mixed line production continuous power-off control system and method

Abstract

The invention provides a continuous power-off control system and method for vehicle body electrophoresis mixed line production, and belongs to the technical field of vehicle body electrophoretic painting, the continuous power-off control system comprises a label module, a position identification module, a control module and an execution module, the label module is arranged on a target vehicle body, and the position identification module outputs a radio frequency signal to the label module; the label module inputs a response signal to the position identification module, the position identification module inputs target vehicle body position information to the control module, and the control module outputs a control instruction to the execution module. During working, after a target vehicle body enters the electrophoresis tank, the position identification module sends a radio frequency signal to the tag module to obtain a response signal, and the position identification module obtains the position information of the target vehicle body. The position identification module sends target vehicle body position information to the control module. The control module sends out a control instruction to control the corresponding anode tube to be powered off when the tail of the target vehicle body enters the coating buffer area from the coating waiting area. According to the invention, the influence of the tail electric field of the front vehicle on the front cover of the rear vehicle during electrophoretic coating of the vehicle body is eliminated.

Description

Technical Field

[0001] The present invention belongs to the technical field of electrophoretic coating of vehicle bodies, and in particular, the present invention relates to a control system and method for continuous power-off of mixed-line production of electrophoretic coating of vehicle bodies. Background Art

[0002] Automotive electrophoretic coating is a surface treatment technology widely used in the automobile manufacturing process, mainly used to provide anti-corrosion, decorative and protective coatings for automobile bodies. Electrophoretic coating is a process that uses the action of an electric field to deposit charged paint particles on the surface of the workpiece under the action of the electric field force to form a coating. Automotive electrophoretic coating is an indispensable step in automobile manufacturing. It not only improves the appearance quality of the car, but more importantly, provides long-term anti-corrosion protection and extends the service life of the car.

[0003] Chinese patent 217266080U provides a continuous electrophoretic coating device for automobile bodies, including a chain conveyor line, an electrophoretic tank, a gantry frame and a group of body electrophoretic support frames. The chain conveyor line can drive a group of body electrophoretic support frames to enter the electrophoretic tank in sequence; the body electrophoretic support frame includes two symmetrically arranged connecting components, a supporting beam, two symmetrically arranged U-shaped connecting rods, a body support plate and a group of body clamping components. The group of body clamping components can press the automobile body on the body support plate, and the body support plate can be immersed in the electrophoretic tank.

[0004] The existing technology does not solve the problem of electric field patterns caused by the electric field at the rear end of the front vehicle interfering with the front hood of the rear vehicle during electrophoretic coating of the vehicle body, which requires a large amount of manpower to grind and repair the electric field patterns on the vehicle body. Summary of the invention

[0005] The present invention aims to provide a continuous power-off control system and method for mixed-line production of electrophoretic coating of vehicle bodies, so as to solve the problem that the electric field of the rear end of a front vehicle interferes with the front cover of a rear vehicle during electrophoretic coating of the vehicle body.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is:

[0007] The present invention provides a continuous power-off control system for vehicle body electrophoresis mixed line production, comprising a label module, a position identification module, a control module and an execution module, wherein the label module is arranged on a target vehicle body, the output end of the position identification module is connected to the input end of the label module, the output end of the label module is connected to the input end of the position identification module, the output end of the position identification module is connected to the input end of the control module, and the output end of the control module is connected to the input end of the execution module.

[0008] The position identification module outputs a radio frequency signal to the tag module, the tag module inputs a response signal to the position identification module, the position identification module inputs the target vehicle body position information to the control module, and the control module outputs a control instruction to the execution module.

[0009] The label module adopts a tag carrier.

[0010] The location identification module adopts an RFID reader.

[0011] The control module adopts a central console.

[0012] The execution module adopts an anode tube.

[0013] The present invention provides a method for controlling continuous power failure in mixed-line production of electrophoresis vehicle bodies:

[0014] Step 1: After the target vehicle body enters the electrophoresis tank, the location recognition module sends a radio frequency signal to the tag module, receives a response signal, and the location recognition module obtains the location information of the target vehicle body;

[0015] Step 2: The position recognition module sends the target vehicle position information to the control module;

[0016] Step 3: When the tail of the target vehicle body enters the painting buffer zone from the painting waiting zone, the control module sends a control instruction to control the corresponding anode tube to cut off the power.

[0017] In step three, the control module controls the anode tubes corresponding to the tail of the target vehicle body to be powered off when the tail of the target vehicle body enters the painting buffer zone from the painting waiting area; as the target vehicle body moves, the control module controls the anode tubes corresponding to the tail of the target vehicle body to be powered off in the form of flowing lights; when the front cover of the rear vehicle of the target vehicle body reaches the painting buffer zone, the control module controls the number of power-off anode tube groups corresponding to the tail of the target vehicle body to gradually decrease as the target vehicle body moves until it is reduced to zero.

[0018] When the control instruction controls the corresponding anode tube to start to be powered off, the number of anode tube groups to be powered off is the set value.

[0019] The technical effects of the present invention are:

[0020] (1) The present invention solves the problem of electric field lines generated during electrophoretic coating of vehicle bodies, eliminates the cost of manual polishing, and improves the corrosion resistance and durability of automobile coatings.

[0021] (2) The present invention solves the problem of flexible production of large and small car models on the electrophoresis production line. Different car models can be produced on one production line, thereby improving production capacity.

[0022] (3) The present invention determines the position of the target vehicle body by using the tag carrier and the RFID reader in combination, without the need for manual judgment, thereby improving work efficiency.

[0023] (4) The present invention does not need to increase the distance between the target vehicle body and the following vehicle, thereby increasing the utilization rate of the production line. The production line can paint more vehicle bodies in the same time.

[0024] (5) The present invention adopts a strategy of cutting off the power to the anode tube corresponding to the tail of the target vehicle body when the tail of the target vehicle body enters the painting buffer zone from the painting waiting zone, thereby reducing the influence of the electric field of the tail of the target vehicle body on the rear hood of the target vehicle body. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] This specification includes the following drawings, which show the following contents:

[0026] Figure 1 It is a logical structure block diagram of a continuous power-off control system and method for vehicle body electrophoresis mixed line production of the present invention;

[0027] Figure 2 The present invention is a program control system and method for continuous power-off control of the vehicle body electrophoresis mixed line production Figure 1 ;

[0028] Figure 3 The present invention is a program control system and method for continuous power-off control of the vehicle body electrophoresis mixed line production Figure 2 ;

[0029] Figure 4 The present invention is a program control system and method for continuous power-off control of the vehicle body electrophoresis mixed line production Figure 3 ;

[0030] Figure 5 The present invention is a program control system and method for continuous power-off control of the vehicle body electrophoresis mixed line production Figure 4 ;

[0031] Figure 6 The present invention is a program control system and method for continuous power-off control of the vehicle body electrophoresis mixed line production Figure 5 ;

[0032] Figure 7 The present invention is a program control system and method for continuous power-off control of the vehicle body electrophoresis mixed line production Figure 6 ;

[0033] Figure 8 This is a defect diagram of a vehicle type A with a body length of 4110 mm in a vehicle body electrophoresis mixed line production continuous power-off control system and method of the present invention;

[0034] Fig. 9 This is a defect diagram of a B model with a body length of 4460mm in a body electrophoresis mixed line production continuous power-off control system and method of the present invention;

[0035] Fig.10 This is a defect diagram of a C model with a body length of 4645mm in a body electrophoresis mixed line production continuous power-off control system and method of the present invention;

[0036] Fig.11 This is a rendering of a continuous power-off control system and method for electrophoretic mixed-line production of vehicle bodies according to the present invention;

[0037] Figure 1 Marked as: 1. label module; 2. location identification module; 3. control module; 4. execution module. DETAILED DESCRIPTION

[0038] The specific implementation methods of the present invention are further explained in detail below by describing the embodiments with reference to the accompanying drawings, with the aim of helping those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the present invention and facilitating their implementation.

[0039] The present invention provides a continuous power-off control system for electrophoresis mixed-line production of vehicle bodies, comprising a tag module 1, a position identification module 2, a control module 3 and an execution module 4. The tag module 1 is arranged on a target vehicle body, the output end of the position identification module 2 is connected to the input end of the tag module 1, the output end of the tag module 1 is connected to the input end of the position identification module 2, the output end of the position identification module 2 is connected to the input end of the control module 3, and the output end of the control module 3 is connected to the input end of the execution module 4. The position identification module 2 outputs a radio frequency signal to the tag module 1, the tag module 1 inputs a response signal to the position identification module 2, the position identification module 2 inputs the target vehicle body position information to the control module 3, and the control module 3 outputs a control instruction to the execution module 4.

[0040] The tag module 1 adopts a code carrier. The location identification module 2 adopts an RFID reader. The control module 3 adopts a central console. The execution module 4 adopts an anode tube.

[0041] The present invention provides a method for controlling continuous power failure in mixed-line production of electrophoresis vehicle bodies:

[0042] Step 1: After the target vehicle body enters the electrophoresis tank, the position identification module 2 sends a radio frequency signal to the tag module 1, and receives a response signal, and the position identification module 2 obtains the position information of the target vehicle body;

[0043] Step 2: The position identification module 2 sends the target vehicle position information to the control module 3;

[0044] Step 3: When the tail of the target vehicle body enters the painting buffer zone from the painting waiting zone, the control module 3 sends a control instruction to control the corresponding anode tube to cut off the power.

[0045] In step 3, the control module 3 controls the anode tube corresponding to the tail of the target body to be powered off when the tail of the target body enters the painting buffer zone from the painting waiting zone; as the target body moves, the control module 3 controls the anode tube corresponding to the tail of the target body to be powered off in the form of a running light; when the front cover of the rear vehicle of the target body reaches the painting buffer zone, the control module 3 controls the number of powered-off anode tube groups corresponding to the tail of the target body to gradually decrease as the target body moves until it is reduced to zero. When the control instruction controls the corresponding anode tube to be powered off, the number of powered-off anode tube groups is the set value.

[0046] The following is a detailed description of a continuous power-off control system and method for vehicle body electrophoresis mixed-line production according to the present invention.

[0047] The present invention discloses a continuous power-off control system for electrophoretic mixed-line production of a vehicle body, comprising a tag module 1, a position identification module 2, a control module 3 and an execution module 4, wherein the tag module 1 adopts a code carrier, which is used in the present invention to mark the position information of the target vehicle body, and to feed back a response signal when the RFID reader sends out a radio frequency signal. The position identification module 2 adopts an RFID reader, which is used to send out a radio frequency signal to the code carrier and receive a response signal sent out by the code carrier to read the position information of the target vehicle body. The control module 3 adopts a central control console, which is used to receive the position information of the target vehicle body collected by the position identification module 2, and to send out a control instruction to the execution module 4. The execution module 4 adopts an anode tube, which forms an electric field with the vehicle body, so that the charged paint particles are deposited on the vehicle body to form a coating. The present invention determines the position of the target vehicle body by the coordinated use of the code carrier and the RFID reader, without the need for manual judgment, thereby improving work efficiency.

[0048] The tag carrier is set on the target vehicle body, the RFID reader sends a radio frequency signal to the tag carrier, the tag carrier feeds back a response signal to the RFID reader, the output end of the RFID reader is connected to the input end of the center console, and the output end of the center console is connected to the input end of the anode tube.

[0049] The following is a detailed description of a method for controlling continuous power failure in the electrophoretic mixed line production of a vehicle body according to the present invention.

[0050] The electrophoretic tank in the present invention is composed of three parts, which are divided into a painting waiting area, a painting area and a painting buffer area. The painting waiting area is the area where the car body waits for painting. In the embodiment of the present invention, the anode tube voltage of the painting waiting area is set to 35V and the current is set to 5A. The painting area is the area where the car body is painted. In the embodiment of the present invention, the anode tube voltage of the painting area is set to 295V and the current is set to 50A. The painting buffer area is the middle area between the painting waiting area and the painting area. The anode tube voltage and current of the painting buffer area gradually increase from the painting waiting area to the painting area.

[0051] After the target vehicle body enters the electrophoresis tank, the position identification module 2 sends a radio frequency signal to the tag module 1 on the target vehicle body, obtains a response signal from the tag module 1, and the position identification module 2 obtains the position information of the target vehicle body.

[0052] The position identification module 2 sends the target vehicle body position information to the control module 3 .

[0053] After obtaining the target vehicle body position information, the control module 3 controls the anode tube corresponding to the tail of the target vehicle body to be powered off when the tail of the target vehicle body enters the painting buffer zone from the painting waiting zone. The number of anode tube groups is a set value, and in the embodiment of the present invention, there are three groups of anode tubes that are powered off. The present invention adopts a strategy of powering off the anode tube corresponding to the tail of the target vehicle body when the tail of the target vehicle body enters the painting buffer zone from the painting waiting zone, thereby reducing the influence of the electric field of the tail of the target vehicle body on the rear hood of the target vehicle body.

[0054] As the target vehicle body moves, the control module 3 controls the anode tube group corresponding to the rear of the target vehicle body to be powered off in the form of running lights. When the front cover of the vehicle behind the target vehicle body reaches the painting buffer zone, the control module 3 controls the number of powered-off anode tube groups corresponding to the rear of the target vehicle body to gradually decrease until it is reduced to zero. The present invention eliminates the influence of the electric field at the rear of the target vehicle body on the front cover of the rear vehicle by controlling the anode tube corresponding to the rear of the target vehicle body. There is no need to increase the distance between the target vehicle body and the rear vehicle, which increases the utilization rate of the production line. More vehicle bodies can be painted on the production line in the same time.

[0055] When the rear end of the vehicle behind the target vehicle body enters the painting buffer zone from the painting waiting area, the above method is repeated.

[0056] The present invention is described below in conjunction with the embodiments in the accompanying drawings.

[0057] In an embodiment, the painting waiting area is an area where the vehicle body is waiting for painting. In an embodiment of the present invention, the painting waiting area includes 14 groups of anode tubes, and the voltage of the anode tubes is set to 35V, and the current is set to 5A. The painting area is an area where the vehicle body is painted. In an embodiment of the present invention, the voltage of the painting area is set to 295V, and the current is set to 50A. The painting buffer area is an intermediate buffer area between the painting waiting area and the painting area. In an embodiment of the present invention, the painting buffer area includes 12 groups of anode tubes, and the voltage of the 15th group of anode tubes is set to 60V, and the current is set to 12A; the voltage of the 16th group of anode tubes is set to 75V, and the current is set to 15A; the voltage of the 17th group of anode tubes is set to 90V, and the current is set to 18A; the voltage of the 18th group of anode tubes is set to 105V, and the current is set to 21A; the voltage of the 19th group of anode tubes is set to 125V, and the current is set to The voltage of the 20th group of anode tubes is set to 145V, and the current is set to 28A; the voltage of the 21st group of anode tubes is set to 165V, and the current is set to 32A; the voltage of the 22nd group of anode tubes is set to 185V, and the current is set to 36A; the voltage of the 23rd group of anode tubes is set to 205V, and the current is set to 40A; the voltage of the 24th group of anode tubes is set to 225V, and the current is set to 42A; the voltage of the 25th and 26th groups of anode tubes are set to 265V, and the current is set to 46A.

[0058] like Figure 2 As shown, when the tail of the target vehicle body enters the painting buffer zone from the painting waiting area, that is, when it enters the 15th anode tube group from the 14th anode tube group, the control module 3 controls the 14th, 15th and 16th anode tube groups to be powered off.

[0059] As the target vehicle body moves, Figure 3 As shown, the control module 3 controls the 15th, 16th and 17th groups of anode tubes to be powered off.

[0060] As the target vehicle body moves, Figure 4 As shown, the control module 3 controls the 16th, 17th and 18th groups of anode tubes to be powered off. After the rear vehicle of the target vehicle body enters the painting buffer zone, the control module 3 controls the number of the power-off anode tube groups corresponding to the tail of the target vehicle body to gradually decrease, such as Figure 5 As shown, the control module 3 controls the 17th and 18th anode tube groups to be powered off. Figure 6 As shown, the control module 3 controls the 18th anode tube group to be powered off. Until the number of powered-off anode tube groups corresponding to the tail of the target vehicle body is reduced to zero, as shown in FIG. Figure 7 At this time, the rear hood of the target vehicle body has smoothly entered the painting buffer zone, and the electric field of the target vehicle body cannot affect the rear hood.

[0061] like Figure 8 , Fig. 9 and Fig.10As shown in the figure, before the three different lengths of the car were improved by the system and method of the present invention, there were stripes on the front cover of the car body, which required a lot of manual polishing of the electrophoretic paint surface, increasing the cost. After the improvement by the system and method of the present invention, the front cover of the car body had no stripes and anti-rust phenomenon, as shown in the figure. Fig.11 shown.

[0062] The present invention solves the problem of electric field lines generated during electrophoretic coating of vehicle bodies, eliminates the cost of manual polishing, and improves the corrosion resistance and durability of automobile coatings. The present invention solves the problem of flexible production of large and small models of vehicles on the electrophoretic production line, and different models can be produced on one production line, thereby improving production capacity.

[0063] The present invention is described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-mentioned methods. As long as various non-substantial improvements are made using the method concept and technical solution of the present invention; or the above-mentioned concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A continuous power-off control system for electrophoresis mixed production of vehicle bodies, characterized in that: It includes a label module, a position identification module, a control module and an execution module. The label module is arranged on the target vehicle body, the output end of the position identification module is connected to the input end of the label module, the output end of the label module is connected to the input end of the position identification module, the output end of the position identification module is connected to the input end of the control module, and the output end of the control module is connected to the input end of the execution module.

2. A continuous power-off control system for electrophoresis mixed-line production of vehicle bodies as claimed in claim 1, characterized in that: The position identification module outputs a radio frequency signal to the tag module, the tag module inputs a response signal to the position identification module, the position identification module inputs the target vehicle body position information to the control module, and the control module outputs a control instruction to the execution module.

3. A continuous power-off control system for electrophoresis mixed-line production of vehicle bodies as claimed in claim 1, characterized in that: The label module adopts a tag carrier.

4. A continuous power-off control system for electrophoresis mixed-line production of vehicle bodies as claimed in claim 1, characterized in that: The location identification module adopts an RFID reader.

5. A continuous power-off control system for electrophoresis mixed-line production of vehicle bodies as claimed in claim 1, characterized in that: The control module adopts a central console.

6. A continuous power-off control system for electrophoresis mixed-line production of vehicle bodies as claimed in claim 1, characterized in that: The execution module adopts an anode tube.

7. A method for controlling continuous power failure in the electrophoresis mixed production of a vehicle body as claimed in any one of claims 1 to 6, characterized in that: Step 1: After the target vehicle body enters the electrophoresis tank, the location recognition module sends a radio frequency signal to the tag module, receives a response signal, and the location recognition module obtains the location information of the target vehicle body; Step 2: The position recognition module sends the target vehicle position information to the control module; Step 3: When the tail of the target vehicle body enters the painting buffer zone from the painting waiting zone, the control module sends a control instruction to control the corresponding anode tube to cut off the power.

8. A method for controlling continuous power failure in electrophoresis mixed production of vehicle bodies as claimed in claim 7, characterized in that: In step three, the control module controls the anode tubes corresponding to the tail of the target vehicle body to be powered off when the tail of the target vehicle body enters the painting buffer zone from the painting waiting area; as the target vehicle body moves, the control module controls the anode tubes corresponding to the tail of the target vehicle body to be powered off in the form of flowing lights; when the front cover of the rear vehicle of the target vehicle body reaches the painting buffer zone, the control module controls the number of power-off anode tube groups corresponding to the tail of the target vehicle body to gradually decrease as the target vehicle body moves until it is reduced to zero.

9. A method for controlling continuous power failure in electrophoresis mixed production of vehicle bodies as claimed in claim 7, characterized in that: When the control instruction controls the corresponding anode tube to start to be powered off, the number of anode tube groups to be powered off is the set value.

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