Egr pipe soldering device and method

Abstract

The present application relates to a kind of EGR pipe coating solder device and method, including box;The slide rail is fixedly arranged in the box;The feeding seat is slidably arranged in the slide rail;The feeding device is slidably arranged in the feeding seat;The feeding device includes first feeding table and second feeding table, and two feeding tables are separately used for placing EGR pipe;Lifting device is arranged below the slide rail;The coating device is arranged above the lifting device, for coating solder;The lifting device and the coating device are fixedly arranged in the box;The box is also provided with driving device, for pushing the feeding table with EGR pipe to the lifting device above, the lifting device is used to push the feeding table with EGR pipe to the coating device below, and the coating device is used to coat solder on the EGR pipe.The present application has the advantages of automatic coating of solder, saves manpower, improves production efficiency, and the coating position, coating amount are relatively fixed and balanced, improves product quality and the like.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of EGR (Exhaust Gas Re-circulation) and the technology of EGR exhaust gas recirculation, and particularly relates to an EGR pipe soldering device and method. BACKGROUND

[0002] EGR is the abbreviation of Exhaust Gas Re-circulation, which is the abbreviation of exhaust gas recirculation. Exhaust gas recirculation refers to the recirculation of part of the exhaust gas discharged by the engine to the intake manifold, and the fresh mixture enters the cylinder again. Since the exhaust gas contains a large amount of CO2 and other multi-atom gases, CO2 and other gases cannot burn but absorb a large amount of heat due to their high specific heat capacity, thereby reducing the maximum combustion temperature of the mixture in the cylinder, thereby reducing the generation of NOx.

[0003] The EGR pipe is an important component of the EGR exhaust gas recirculation device, as shown in Figure 1 The EGR pipe includes a pipe shell 1', a plurality of flat pipes 3' are embedded in the pipe shell 1', and a pipe plate 2' is installed at both ends of the pipe shell 1'. During EGR production, after the flat pipes 3' and the pipe plates 2' at both ends are assembled on the pipe shell 1', soldering needs to be performed between the pipe plate 2' and the flat pipe 3', as shown in Figure 2 4' is the soldering point.

[0004] At present, the soldering point 4' is manually smeared, and the operator uses a soldering gun to smear the soldering between the pipe plate 2' and the flat pipe 3'. This smearing method is low in efficiency and consumes manpower. Moreover, manual smearing often leads to inconsistent smearing point positions and inconsistent soldering amounts of the soldering point 4', which affects product quality. SUMMARY

[0005] Therefore, the present application provides an EGR pipe soldering device and method, which mainly solves the technical problems of low smearing efficiency, consumption of manpower, inconsistent smearing point positions, and inconsistent soldering amounts of the soldering point caused by manual smearing of the soldering between the pipe plate and the flat pipe in the prior art.

[0006] In order to achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0007] The application discloses a soldering material coating device for EGR pipes, which comprises a box body, a sliding rail fixedly arranged in the box body, a feeding seat slidingly arranged on the sliding rail, a feeding device slidingly arranged on the feeding seat, a first feeding table and a second feeding table of the feeding device, wherein the two feeding tables are respectively used for placing EGR pipes, a lifting device arranged below the sliding rail, a coating device arranged above the lifting device and used for coating soldering material, and the lifting device and the coating device are fixedly arranged in the box body; and a driving device arranged in the box body is used for pushing the feeding table with the EGR pipe to the position above the lifting device, the lifting device is used for pushing the feeding table with the EGR pipe to the position below the coating device, and the coating device is used for coating the EGR pipe with soldering material.

[0008] Optionally, the driving device comprises a motor arranged on the box body, a lead screw connected to an output shaft of the motor, and a threaded connection between the lead screw and the feeding seat, so that the motor drives the lead screw to rotate, and the feeding seat slides on the sliding rail under the action of the threads.

[0009] Optionally, the first feeding table and the second feeding table each comprise a feeding base, the feeding base is provided with an EGR pipe placing seat on a top surface thereof and a sliding column on a bottom surface thereof, the feeding seat is provided with a sliding hole, the sliding column is slidingly arranged in the sliding hole and extends out of the sliding hole at a bottom portion thereof, the EGR pipe placing seat is provided with an EGR pipe placing hole, the bottom of the EGR pipe placing hole is provided with a supporting plate, and the top surface of the EGR pipe placing seat is provided with a U-shaped EGR pipe clamping seat.

[0010] Optionally, the lifting device comprises a lifting seat arranged on the box body, a lifting cylinder arranged on the lifting seat, a lifting plate arranged on an extension arm of the lifting cylinder, and a top surface of the lifting plate and a bottom surface of the sliding column being combined together to push the sliding column to ascend or descend.

[0011] Preferably, the feeding base is provided with lifting limiting seats on front and rear sides thereof.

[0012] Preferably, the EGR pipe clamping seat is provided with clamping portions on extending ends of left and right sides thereof, so as to clamp the EGR pipe arranged therebetween.

[0013] Preferably, the EGR pipe clamping seat is provided with a first sensor.

[0014] Preferably, the supporting plate is provided with a second sensor.

[0015] Optionally, the coating device comprises a coating support arranged on the box body; a filler cap is rotatably arranged on the coating support; a filler box is arranged at the bottom of the filler cap for containing filler; a gas tank is arranged at the top of the filler cap; a plurality of gas holes are arranged on the gas tank and communicated with the filler box; a filler plate is arranged at the bottom of the filler box; a plurality of filler pins are arranged at the bottom of the filler plate and communicated with the filler box; a high-pressure gas input pipe for inputting high-pressure gas is communicated with the gas tank; a filler input pipe for injecting filler is communicated with the filler box; and the high-pressure gas input pipe is provided with an electromagnetic valve.

[0016] Preferably, the bottom of the filler plate is provided with an EGR pipe plate positioning column.

[0017] Further, the application also provides an EGR pipe coating filler method, which basically comprises the following steps:

[0018] S1: placing the EGR pipe on the first feeding table or the second feeding table;

[0019] S2: after the first sensor senses the EGR pipe, the PLC controller starts the motor to move the first feeding table or the second feeding table on which the EGR pipe is placed to the position below the coating device;

[0020] S3: the PLC controller starts the lifting cylinder to lift the first feeding table or the second feeding table to the position below the coating device;

[0021] S4: the PLC controller opens the electromagnetic valve, high-pressure gas enters the gas tank, and the filler in the filler box is pushed out of the filler pin through the gas hole, so as to complete the filler coating;

[0022] S5: after the filler coating is completed, the PLC controller closes the electromagnetic valve to reset the lifting cylinder.

[0023] The application has at least the following beneficial effects:

[0024] The first feeding table and the second feeding table for placing the EGR pipe and the coating device are arranged, and the lifting device for lifting the first feeding table or the second feeding table to the position below the coating device and the driving device for driving the first feeding table or the second feeding table to the position above the lifting device are arranged.

[0025] Therefore, the EGR pipe soldering material coating device and method has the advantages of automatic soldering material coating, saving manpower, improving production efficiency, fixed and balanced coating position and coating amount, and improved product quality. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the prior art and the present application, the drawings required to be used in the description of the prior art and the embodiments of the present application will be briefly introduced below. Obviously, the drawings in the following description are only exemplary, and other drawings can be derived from the provided drawings without creative labor for those skilled in the art.

[0027] The structures, proportions, sizes, etc. shown in the specification are only used to cooperate with the content disclosed in the specification for understanding and reading by those skilled in the art, and are not used to limit the limiting conditions that the present application can be implemented. Any modification of structure, change of proportion relationship or adjustment of size, which does not affect the effects and purposes that the present application can produce, should still fall within the scope of the technical content disclosed by the present application.

[0028] Figure 1 is a structural schematic view of an EGR pipe;

[0029] Figure 2 is a left view of an EGR pipe;

[0030] Figure 3 is an assembly schematic view of an EGR pipe soldering material coating device of the present application;

[0031] Figure 4 is a structural schematic view of an EGR pipe soldering material coating device of the present application;

[0032] Figure 5 is a structural schematic view of a feeding device of an EGR pipe soldering material coating device of the present application;

[0033] Figure 6 is a structural schematic view of an auxiliary device of an EGR pipe soldering material coating device of the present application; Figure 5 is a partial enlarged view of A part of the auxiliary device of the EGR pipe soldering material coating device of the present application;

[0034] Figure 7 is a top view of the auxiliary device of the EGR pipe soldering material coating device of the present application; Figure 5

[0035] Figure 8 is a structural schematic view of a lifting device of an EGR pipe soldering material coating device of the present application;

[0036] Figure 9 is a structural schematic view of a coating device of an EGR pipe soldering material coating device of the present application;

[0037] ​Figure 10 Figure 9 is a perspective view of the EGR pipe soldering device of the present application; Figure 9 Figure 10 is a bottom view of the EGR pipe soldering device of the present application;

[0038] Figure 11 Figure 11 is a partial enlarged view of B of the EGR pipe soldering device of the present application; Figure 10 Figure 12 is a partial enlarged view of C of the EGR pipe soldering device of the present application;

[0039] Reference signs:

[0040] 1, box; 2, motor; 3, screw rod; 4, first feeding table; 5, second feeding table; 6, coating device; 601, solder box; 602, solder plate; 603, solder cover plate; 604, gas tank; 605, electromagnetic valve; 606, high-pressure gas input pipe; 607, solder input pipe; 608, EGR pipe plate positioning column; 609, solder needle; 7, lifting device; 701, lifting seat; 702, lifting cylinder; 703, lifting plate; 8, sliding rail; 9, feeding seat; 10, receiving box; 11, lifting limiting seat; 12, feeding base; 13, sliding column; 14, EGR pipe placing seat; 15, EGR pipe clamping seat; 16, EGR pipe placing hole; 17, first sensor; 18, support plate; 19, second sensor; 20, guide limiting stud; 21, clamping part; 2101, clamping sliding cylinder; 2102, clamping telescopic rod; 22, coating support. DETAILED DESCRIPTION

[0041] The present application will be further described in detail below with reference to the accompanying drawings.

[0042] In the description of the present application: unless otherwise specified, the meaning of "a plurality of" is two or more. The terms "first", "second", "third" and the like in the present application are intended to distinguish the objects referred to, and do not have a special meaning in the technical connotation aspect (for example, it should not be understood as emphasizing importance or order, etc.). The expressions "include", "contain", "have" and the like also mean "not limited to" (certain units, components, materials, steps, etc.).

[0043] The terms such as "upper", "lower", "left", "right", "intermediate" and the like referred to in the present application are generally for the purpose of intuitive understanding by referring to the drawings, and are not an absolute limitation on the positional relationship in the actual product. Changes in these relative positional relationships, without departing from the technical concept disclosed in the present application, are also considered within the scope of the present application.

[0044] The EGR pipe soldering device of the present application, as shown in Figure 3 , Figure 4As shown, including the box 1, the box 1 is fixedly provided with a slide rail 8, the slide rail 8 is slidably provided with a feeding seat 9, the sliding structure is well known, and will not be described here, the feeding seat 9 is slidably provided with a feeding device, the feeding device includes a first feeding table 4 and a second feeding table 5, for placing EGR pipe, setting two feeding tables, improving the efficiency of coating, improving the productivity, the box 1 below the slide rail 8 is provided with a lifting device 7, the box 1 above the lifting device 7 is provided with a coating device 6, for coating the filler, the box 1 is also provided with a driving device, for pushing the first feeding table 4 or the second feeding table 5 to the lifting device 7, the lifting device 7 pushes the first feeding table 4 or the second feeding table 5 to the coating device 6 below, and the coating device 6 coats the filler on the EGR pipe placed on the first feeding table 4 or the second feeding table 5.

[0045] Optionally, the driving device includes a motor 2 arranged on the box 1, a lead screw 3 is connected to the output shaft of the motor 2, the lead screw 3 is threadedly connected with the feeding seat 9, and the motor 2 drives the lead screw 3 to rotate, so that the feeding seat 9 slides on the slide rail (8) under the action of threads. The driving device can also adopt other structures, such as air cylinder, gear, rack, etc.

[0046] Optionally, the application embodiment gives the preferred structure of the first feeding table 4 and the second feeding table 5, as shown in Figure 5 , Figure 7 As shown, the first feeding table 4 and the second feeding table 5 each include a feeding base 12, the feeding base 12 is provided with an EGR pipe placing seat 14 on the top surface, and is provided with a sliding column 13 on the bottom surface, the feeding seat 9 is provided with a sliding hole, the sliding column 13 is slidably arranged in the sliding hole, and the bottom of the sliding column 13 extends out of the sliding hole, the EGR pipe placing seat 14 is provided with an EGR pipe placing hole 16, the hole bottom of the EGR pipe placing hole 16 is provided with a supporting plate 18, the top surface of the EGR pipe placing seat 14 is provided with a U-shaped EGR pipe clamping seat 15, the bottom of the EGR pipe is inserted into the EGR pipe placing hole 16, and the upper part of the EGR pipe is clamped in the EGR pipe clamping seat 15.

[0047] Optionally, for the above-mentioned structure of the first feeding table 4 and the second feeding table 5, the application embodiment gives an optimal structure of the lifting device 7, as shown in Figure 8 As shown, the lifting device 7 includes a lifting seat 701 arranged on the box 1, the lifting seat 701 is provided with a lifting cylinder 702, the lifting cylinder 702 is provided with a lifting plate 703 on the telescopic arm, the top surface of the lifting plate 703 and the bottom surface of the sliding column 13 are combined together, the sliding column 13 is pushed to rise or fall, and then the feeding base 12 is lifted or lowered.

[0048] Preferably, in order to make the feeding base 12 rise or fall smoothly, the lifting limiting seat 11 is arranged on the front and rear sides of the feeding base 12, and the lifting limiting seat 11 guides and limits the rising or falling of the feeding base 12; in order to further limit, the lifting limiting seat 11 is further provided with a guide limiting stud 20.

[0049] Preferably, the upper part of the EGR pipe is clamped in the EGR pipe clamp seat 15. In order to clamp the EGR pipe, clamping parts 21 are arranged on the extending ends of the left and right sides of the EGR pipe clamp seat 15, for clamping the EGR pipe placed therebetween. The clamping part 21 can adopt the structure as shown in the figure, that is, it includes a clamping sliding cylinder 2101 arranged on the extending end of the left or right side of the EGR pipe clamp seat 15. The clamping sliding cylinder 2101 is provided with a clamping telescopic rod 2102 and a clamping spring. The clamping spring makes the clamping telescopic rod 2102 extend to the outside of the extending end of the left or right side of the EGR pipe clamp seat 15 at the end away from the clamping spring, and the clamping telescopic rod 2102 clamps the EGR pipe. Figure 6

[0050] Preferably, a first sensor 17 is arranged on the EGR pipe clamp seat 15, for sensing whether the EGR pipe is placed on the first feeding table 4 and the second feeding table 5.

[0051] Preferably, a second sensor 19 is arranged on the support plate 18, for sensing different types of EGR pipes. The principle is that the flat tube positions of different types of EGR pipes are inconsistent, and different types of EGR pipes are distinguished by whether the flat tube wall is on the second sensor 19.

[0052] Optionally, a preferred structure of the coating device 6 is given, as shown in the figure. The coating device 6 includes a coating support 22 arranged on the box body 1. A solder cover plate 603 is rotatably arranged on the coating support 22. The solder cover plate 603 is provided with a solder box 601 at the bottom, for containing solder, and is provided with a gas tank 604 at the top. The gas tank 604 is provided with a plurality of gas holes communicating with the solder box 601. The solder box 601 is provided with a solder plate 602 at the bottom. The solder plate 602 is provided with a plurality of solder pins 609 communicating with the solder box 601 at the bottom. The gas tank 604 is communicated with a high-pressure gas input pipe 606 for inputting high-pressure gas. The solder box 601 is communicated with a solder input pipe 607 for injecting solder. The high-pressure gas input pipe 606 is provided with an electromagnetic valve 605. When the solder is applied, the solder is injected into the solder box 601 through the solder input pipe 607. High-pressure gas is connected to the high-pressure gas input pipe 606. The electromagnetic valve 605 is opened. The high-pressure gas enters the gas tank 604. The solder in the solder box 601 is pushed through the gas holes, so that it flows out of the solder pins 609. Figures 9 to 11 Preferably, the solder plate 602 is provided with an EGR pipe plate positioning column 608 at the bottom. During application, the EGR pipe plate positioning column 608 is pressed on the pipe plate, so as to position the pipe plate, and facilitate accurate application position.

[0053] Preferably, the solder plate 602 is provided with an EGR pipe plate positioning column 608 at the bottom. During application, the EGR pipe plate positioning column 608 is pressed on the pipe plate, so as to position the pipe plate, and facilitate accurate application position.​

[0054] Optionally, a receiving box 10 is arranged on the feeding seat 9, and the receiving box 10 is moved to below the coating device during debugging, and the filler flowed out of the coating device during debugging is received in the receiving box 10.

[0055] In actual application, a PLC controller is further included, and the PLC controller is electrically connected with the first sensor, the second sensor, the motor, the lifting cylinder and the electromagnetic valve, and controls the opening and closing of the first sensor, the second sensor, the motor, the lifting cylinder and the electromagnetic valve.

[0056] The working principle of the present application is as follows:

[0057] The EGR pipe to be coated with filler is placed on the first feeding table or the second feeding table; after the first sensor senses the EGR pipe, the PLC controller starts the motor to move the first feeding table or the second feeding table to below the coating device; the PLC controller starts the lifting cylinder, and the telescopic arm of the lifting cylinder drives the lifting plate to push the sliding column to ascend, thereby lifting the EGR pipe to below the coating device; the EGR pipe plate positioning column is pressed on the pipe plate to position the pipe plate, the PLC controller opens the electromagnetic valve, high-pressure gas enters the gas tank, and the filler in the filler box is pushed and pressed through the air hole to flow out of the filler needle, thereby completing the filler coating; then the PLC controller closes the electromagnetic valve to reset the lifting cylinder, and waits for the first sensor to sense the signal after the first feeding table or the second feeding table places the EGR pipe, thereby repeating the above steps to automatically coat the filler.

[0058] Meanwhile, the present application also provides an EGR pipe filler coating method, which specifically includes the following steps:

[0059] S1: placing the EGR pipe on the first feeding table 4 or the second feeding table 5;

[0060] S2: after the first sensor 17 senses the EGR pipe, the PLC controller starts the motor 2 to move the first feeding table 4 or the second feeding table 5 on which the EGR pipe is placed to below the coating device 6;

[0061] S3: the PLC controller starts the lifting cylinder 702 to lift the first feeding table 4 or the second feeding table 5 to below the coating device 6;

[0062] S4: the PLC controller opens the electromagnetic valve 605, high-pressure gas enters the gas tank 604, and the filler in the filler box 601 is pushed and pressed through the air hole to flow out of the filler needle 609, thereby completing the filler coating;

[0063] S5: after the filler coating is completed, the PLC controller closes the electromagnetic valve 605 to reset the lifting cylinder 702.

[0064] The application is described in detail above by general description and specific embodiments. It should be understood that based on the technical concept of the application, some conventional adjustments or further innovations can be made to the specific embodiments; as long as the technical concept of the application is not deviated, the technical solutions obtained by the conventional adjustments or further innovations also fall within the protection scope of the claims of the application.

Claims

1. An EGR pipe soldering device characterized by comprising: The utility model provides a box (1), the box (1) inside fixedly arranged with slide rail (8), the slide rail (8) slidingly arranged with feeding seat (9), the feeding seat (9) slidingly arranged with feeding device, the feeding device includes first feeding table (4) and second feeding table (5), and two feeding tables are separately used for placing EGR pipe respectively, the slide rail (8) below is provided with lifting device (7), the lifting device (7) above is provided with coating device (6), is used for smearing solder, the lifting device (7), coating device (6) are all fixedly arranged in the box (1), the box (1) inside still is equipped with drive arrangement, is used for pushing the feeding table that places EGR pipe to the lifting device (7) top, the lifting device (7) is used for the second feeding table (5) of pushing the EGR pipe that places to promote to the coating device (6) below, the coating device (6) is used for the solder smearing of EGR pipe, The coating device (6) includes a coating support (22) arranged on the box (1), a solder cover plate (603) is rotatably arranged on the coating support (22), the solder cover plate (603) is provided with a solder box (601) at the bottom and a gas tank (604) at the top, the solder box (601) is used for containing solder, the gas tank (604) is provided with a plurality of gas holes communicated with the solder box (601), the solder box (601) is provided with a solder plate (602) at the bottom, the solder plate (602) is provided with a plurality of solder needles (609) communicated with the solder box (601), when stopping the smearing operation, the solder needles (609) are turned upside down, the solder in the solder needles (609) flows back to prevent the solder from solidifying and blocking the solder needles (609), the gas tank (604) is communicated with a high-pressure gas input pipe (606) for inputting high-pressure gas, the solder box (601) is communicated with a solder input pipe (607) for injecting solder, and the high-pressure gas input pipe (606) is provided with a solenoid valve (605).

2. The EGR tube soldering device of claim 1, wherein, The drive device includes a motor (2) arranged on the box (1), a lead screw (3) connected to the output shaft of the motor (2), the lead screw (3) is threadedly connected with the feeding seat (9), and the motor (2) drives the lead screw (3) to rotate, so that the feeding seat (9) slides on the slide rail (8) under the action of threads.

3. An EGR pipe soldering device according to claim 2, wherein The first feeding table (4) and the second feeding table (5) each include a feeding base (12), the feeding base (12) is provided with an EGR pipe placing seat (14) on the top surface and a sliding column (13) on the bottom surface, the feeding seat (9) is provided with a sliding hole, the sliding column (13) is slidably arranged in the sliding hole and extends out of the sliding hole at the bottom, the EGR pipe placing seat (14) is provided with an EGR pipe placing hole (16), the bottom of the EGR pipe placing hole (16) is provided with a supporting plate (18), and the top surface of the EGR pipe placing seat (14) is provided with a U-shaped EGR pipe clamping seat (15).

4. An EGR pipe soldering device according to claim 3, wherein The lifting device (7) comprises a lifting seat (701) arranged on the box (1), the lifting seat (701) is provided with a lifting cylinder (702), the lifting cylinder (702) is provided with a lifting plate (703) on the telescopic arm, and the top surface of the lifting plate (703) and the bottom surface of the sliding column (13) are attached together, and the sliding column (13) is pushed to rise or fall.

5. An EGR tube soldering apparatus according to claim 4, wherein The feeding base (12) is provided with lifting limiting seats (11) on the front and rear sides.

6. An EGR tube soldering apparatus according to claim 5, wherein The left and right sides of the EGR pipe clamping seat (15) are provided with clamping parts (21) on the extending ends, for clamping the EGR pipe placed therebetween.

7. An EGR pipe soldering device according to claim 6, wherein The EGR pipe clamping seat (15) is provided with a first sensor (17).

8. An EGR pipe soldering device according to claim 7, wherein The brazing filler metal plate (602) is provided with an EGR pipe plate positioning column (608) at the bottom.

9. A soldering method for EGR pipes, characterized by, The EGR pipe brazing filler metal coating device of claim 8 comprises the following steps: S1: placing the EGR pipe on the first feeding table (4) or the second feeding table (5); S2: after the first sensor (17) senses the EGR pipe, the PLC controller starts the motor (2), and moves the first feeding table (4) or the second feeding table (5) on which the EGR pipe is placed to below the coating device (6); S3: the PLC controller starts the lifting cylinder (702), and the lifting cylinder (702) lifts the first feeding table (4) or the second feeding table (5) to lift the EGR pipe to below the coating device (6); S4: the PLC controller opens the electromagnetic valve (605), high-pressure gas enters the gas tank (604), and the brazing filler metal in the brazing filler metal box (601) is pushed and pressed through the air hole to flow out from the brazing filler metal needle (609), and the brazing filler metal coating is completed; S5: after the brazing filler metal coating is completed, the PLC controller closes the electromagnetic valve (605), and the lifting cylinder (702) is reset.

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