An automatic brazing process and equipment for aluminum heat exchanger for new energy vehicles

Abstract

The invention discloses an automatic brazing process and equipment for an aluminum heat exchanger for a new energy vehicle, and relates to the technical field of automatic brazing, and specifically to an automatic brazing process and equipment for an aluminum heat exchanger for a new energy vehicle, comprising an operating table, the upper surface of the operating table is fixedly connected with a placing table, the upper surface of the placing table is provided with an operating panel, the upper surface of the operating panel is provided with positioning holes, the surface of the operating panel is slidably connected with a heat exchanger, the upper surface of the placing table is fixedly connected with two guide pillars, the operating panel is slidably connected to the two guide pillars, one side of the two vertical blocks is slidably connected with a cross plate, both ends of the cross plate are provided with a plurality of teeth, the upper surface of the operating panel close to one of the cross plates is provided with two synchronous motors, the upper surfaces of the two synchronous motors are slidably connected with two electric push rods, and the upper surfaces of the two electric push rods are fixedly connected with two sliding sleeves.

Description

Technical Field

[0001] The present invention relates to the technical field of automated brazing, and in particular to an automated brazing process and equipment for an aluminum heat exchanger for new energy vehicles. Background Art

[0002] The tube sheet at one end of the floating head heat exchanger tube bundle of the motor cooling device of new energy vehicles can float freely, completely eliminating thermal stress; and the entire tube bundle can be pulled out of the shell, which is convenient for mechanical cleaning and maintenance. The heat exchanger of new energy vehicles adopts brazing technology to make the connection stronger. The workpieces with cleaned surfaces are assembled together in an overlapping manner, and the brazing material is placed near the joint gap or between the joint gaps. When the workpiece and the brazing material are heated to a temperature slightly higher than the melting point of the brazing material, the brazing material melts (the workpiece is not melted), and is sucked into and filled between the solid workpiece gaps by capillary action. The liquid brazing material and the workpiece metal diffuse and dissolve each other, and a brazed joint is formed after cooling.

[0003] In the existing invention, the aluminum heat exchanger of the new energy vehicle is used to heat the interior of the vehicle and provide the best operating temperature for the power battery, thereby reducing the power loss of the vehicle power battery at low temperatures. Brazing technology is used to strengthen the interface of the heat exchanger. During this process, the operator needs to pay attention to the solid-liquid switching state of the brazing rod at all times, and keep the eyes and hands still for a long time, which causes eye diseases to the operator for a long time and also consumes the operator's physical strength, while reducing production efficiency and increasing labor costs. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] The purpose of the present invention is to provide an automated brazing process and equipment for aluminum heat exchangers for new energy vehicles. Through the automated brazing process, the problem that operators need to always pay attention to the solid-liquid switching state of the brazing rod and keep their eyes and hands still for a long time is solved, which causes eye diseases to operators for a long time, affects the personal health of operators, and reduces production efficiency and increases labor costs.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: an automated brazing process and equipment for aluminum heat exchangers for new energy vehicles, comprising an operating table, the upper surface of the operating table is fixedly connected to a placement table, the upper surface of the placement table is provided with an operating panel, the upper surface of the operating panel is provided with positioning holes, the surface of the operating panel is slidably connected to a heat exchanger, the upper surface of the placement table is fixedly connected to two guide pillars, the operating panel is slidably connected to the two guide pillars, one side of the two vertical blocks is slidably connected to a cross plate, a plurality of teeth are provided at both ends of the cross plate, two synchronous motors are provided on the upper surface of the operating panel close to one of the cross plates, the upper surfaces of the two synchronous motors are slidably connected to two electric push rods, the upper surfaces of the two electric push rods are fixedly connected to two sliding sleeves, the inner surfaces of the two sliding sleeves A cross plate is slidably connected to the part, two groups of reverse motors are fixedly connected to the upper surface of the operating plate, four electric rotating rods are rotatably connected to the upper surfaces of the two groups of reverse motors, gears are fixedly connected to the arc surfaces of the two groups of electric rotating rods, the other two ends of the cross plate are fixedly connected to positioning rings, the upper surface of the positioning ring is fixedly connected to a fixing cylinder, the upper surface of the fixing cylinder is slidably connected to a fuel barrel, the upper surface sliding rod of the positioning ring is connected to a plurality of positioning rods, a plurality of limiting rods are inserted on the arc surfaces of the positioning rods, a plurality of connecting cylinders are fixedly connected to one end of the positioning rods away from the handle, a plurality of fixers are rotatably connected to one side of the connecting cylinders, a plurality of flame guns are slidably connected to the inside of the plurality of fixers, and a plurality of oil pipelines are fixedly connected to the upper surfaces of the plurality of flame guns.

[0008] Furthermore, a placement groove is provided on the upper surface of the placement table, and the four corners of the placement groove are in a quarter arc shape.

[0009] Furthermore, two pressing blocks are fixedly connected to diagonal positions of the upper surface of the placement table, and the cross-sections of the two pressing blocks are rectangular.

[0010] Furthermore, a handle is fixedly connected to the upper surface of a plurality of the positioning rods, and the cross section of the handle is circular.

[0011] Furthermore, two partitions are provided on the upper surface of the operating panel, and the two partitions are plastic partitions.

[0012] Furthermore, two fixing blocks are provided on the upper surface of the operating panel, and the cross-sections of the two fixing blocks are rectangular.

[0013] Furthermore, two vertical blocks are provided on the upper surfaces of the two fixed blocks, and the transverse surfaces of the two vertical blocks are rectangular.

[0014] Furthermore, a sliding opening is provided on one side of the two upright blocks, and the cross section of the sliding opening is rectangular.

[0015] An automated brazing process for an aluminum heat exchanger includes the following methods:

[0016] 1) Fix the heat exchanger: Slide the operating panel upwards, place the brazed side of the heat exchanger away from the inside of the placement slot, and then lower the operating panel to fix it.

[0017] 2) Start the flame gun: place the positioning rod evenly at the sliding position of the positioning ring, install the connecting cylinder and the fixture to the lower end of the positioning rod, then insert and hang the flame front gun into the inside of the fixture, and then insert the oil pipe into the upper surface of the flame gun.

[0018] 3) Start the motor: When the brazing of the heat exchanger at one end is completed, the operator starts the synchronous motor first, the cross plate rises, and then turns on the two sets of reverse motors. The reverse motor rotates the gear to transport the cross plate. When it reaches the top, the reverse motor is turned off, and then the synchronous motor is turned off.

[0019] (III) Beneficial effects

[0020] The present invention provides an automated brazing process and equipment for an aluminum heat exchanger for new energy vehicles, which has the following beneficial effects:

[0021] For this automated brazing process, before use, the operator only needs to lift the operating panel, lay the heat exchanger flat in the placement slot, fix the pressure block in position, and put down the operating panel. At this time, the operator only needs to start the flame gun and wait for a period of time, then start the synchronous motor to drive the electric push rod to raise the flame guns on both sides, and start the reverse motors at both ends again. The reverse motor drives the gear, and the gear engages the tooth mouth of the cross plate and slides to one side. When the brazing position at the other end is reached, the asynchronous belt is first turned off, and then the synchronous motor is turned off, and the flame gun is lowered and waits for a period of time to complete the brazing. In the above operation, the operator only needs to control the switch and the waiting time to complete the brazing process of the heat exchanger, which reduces the physical strength of the personnel and greatly improves the brazing efficiency, with a high degree of automation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the drawings required for the implementation methods or the prior art descriptions are briefly introduced below. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0023] Figure 1 This is a schematic diagram of an automated brazing process for aluminum heat exchangers for new energy vehicles and a new structure of the equipment proposed by the present invention;

[0024] Figure 2The invention provides a schematic diagram of the upper surface structure of an automated brazing process for aluminum heat exchangers for new energy vehicles and a device placement table;

[0025] Figure 3 An automatic brazing process and equipment for aluminum heat exchangers for new energy vehicles proposed for invention Figure 1 A magnified image of point A;

[0026] Figure 4 An automatic brazing process and equipment for aluminum heat exchangers for new energy vehicles proposed for invention Figure 1 A magnified view of point B;

[0027] Figure 5 The invention provides a schematic diagram of the upper surface structure of an automated brazing process for aluminum heat exchangers for new energy vehicles and an equipment operation panel;

[0028] Figure 6 An automatic brazing process and equipment for aluminum heat exchangers for new energy vehicles proposed for invention Figure 4 Enlarged view of point C.

[0029] Indicated in the figure:

[0030] 1. Operation table; 2. Placement table; 3. Placement slot; 4. Press block; 5. Operation panel; 6. Positioning hole; 7. Guide column; 8. Heat exchanger; 9. Fixing block; 10. Vertical block; 11. Slide; 12. Cross plate; 13. Tooth mouth; 14. Synchronous motor; 15. Electric push rod; 16. Sliding sleeve; 17. Reverse motor; 18. Electric rotating rod; 19. Gear; 20. Positioning ring; 21. Fixing cylinder; 22. Fuel tank; 23. Positioning rod; 24. Handle; 25. Limiting rod; 26. Connecting cylinder; 27. Fixer; 28. Flame gun; 29. ​​Oil pipeline; 30. Fence; DETAILED DESCRIPTION

[0031] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices consistent with some aspects of the present disclosure as detailed in the appended claims.

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] See also Figures 1 to 4 , an automatic brazing process and equipment for aluminum heat exchanger 8 for new energy vehicles, including an operating table 1, a placing table 2 is fixedly connected to the upper surface of the operating table 1, an operating panel 5 is arranged on the upper surface of the placing table 2, a positioning hole 6 is arranged on the upper surface of the operating panel 5, a heat exchanger 8 is slidably connected to the surface of the operating panel 5, two guide pillars 7 are fixedly connected to the upper surface of the placing table 2, the operating panel 5 is slidably connected to the two guide pillars 7, a cross plate 12 is slidably connected to one side of two vertical blocks 10, a plurality of tooth openings 13 are opened at both ends of the cross plate 12, and two synchronous motors are arranged on the upper surface of the operating panel 5 close to one of the cross plates 12 14, two electric push rods 15 are slidably connected to the upper surfaces of the two synchronous motors 14, two sliding sleeves 16 are fixedly connected to the upper surfaces of the two electric push rods 15, and a cross plate 12 is slidably connected inside the two sliding sleeves 16. Two sets of reverse motors 17 are fixedly connected to the upper surface of the operating plate 5, and four electric rotating rods 18 are rotatably connected to the upper surfaces of the two sets of reverse motors 17. Gears 19 are fixedly connected to the arc surfaces of the two sets of electric rotating rods 18. The other two ends of the cross plate 12 are fixedly connected to positioning rings 20, and the upper surface of the positioning ring 20 is fixedly connected to a fixed cylinder 21. The upper surface of the fixed cylinder 21 slides A fuel barrel 22 is connected, a plurality of positioning rods 23 are connected to the sliding rod on the upper surface of the positioning ring 20, a plurality of limiting rods 25 are inserted on the arc surface of the plurality of positioning rods 23, a plurality of connecting cylinders 26 are fixedly connected to one end of the plurality of positioning rods 23 away from the handle 24, a plurality of fixing devices 27 are rotatably connected to one side of the plurality of connecting cylinders 26, a plurality of flame guns 28 are slidably connected to the inside of the plurality of fixing devices 27, a plurality of oil delivery pipes 29 are fixedly connected to the upper surface of the plurality of flame guns 28, a placement groove 3 is provided on the upper surface of the placement table 2, and the four corners of the placement groove 3 are quarter arcs shape, two pressing blocks 4 are fixedly connected to the diagonal positions of the upper surface of the placing table 2, and the cross-section of the two pressing blocks 4 is rectangular, and the upper surfaces of several positioning rods 23 are fixedly connected with handles 24, and the cross-section of the handles 24 is circular. Two fences 30 are provided on the upper surface of the operating panel 5, and the two fences 30 are plastic fences 30. Two fixed blocks 9 are provided on the upper surface of the operating panel 5, and the cross-section of the two fixed blocks 9 is rectangular. Two vertical blocks 10 are provided on the upper surfaces of the two fixed blocks 9, and the cross-street surfaces of the two vertical blocks 10 are rectangular. A sliding opening 11 is opened on one side of the two vertical blocks 10, and the cross-section of the sliding opening 11 is rectangular.

[0034] An automated brazing process for an aluminum heat exchanger 8, comprising the following methods:

[0035] 1) Fixing the heat exchanger 8: Slide the operating plate 5 upwards, place the brazed side of the heat exchanger 8 away from the inside of the placement groove 3, and then lower and fix the operating plate 5.

[0036] 2) Start the flame gun 28: evenly place the positioning rod 23 at the sliding position of the positioning ring 20, install the connecting cylinder 26 and the fixture 27 to the lower end of the positioning rod 23, then insert and hang the flame gun into the inside of the fixture 27, and then insert the oil pipe 29 into the upper surface of the flame gun 28.

[0037] 3) Start the motor: When the brazing of the heat exchanger 8 at one end is completed, the operator first starts the synchronous motor 14, the cross plate 12 rises, and then turns on the two sets of reverse motors 17. The reverse motor 17 rotates the gear 19 to transport the cross plate 12. When it reaches the top, the reverse motor 17 is turned off, and then the synchronous motor 14 is turned off.

[0038] In summary, see the following description:

[0039] Specifically, the automatic brazing process and equipment of the aluminum heat exchanger 8 for new energy vehicles are at work / in use: through the automatic brazing process, before use, the operator only needs to lift the operating panel 5, lay the heat exchanger 8 flat in the placement slot 3, fix the pressing block 4 in position, and put down the operating panel 5. At this time, the operator only needs to start the flame gun 28 and wait for a period of time, then start the synchronous motor 14 to drive the electric push rod 15 to raise the flame guns 28 on both sides, and start the reverse motors 17 at both ends again. The reverse motor 17 drives the gear 19, and the gear 19 engages the tooth mouth 13 of the cross plate 12 and slides to one side. When the brazing position at the other end is reached, the asynchronous belt is first turned off, and then the synchronous motor 14 is turned off, and the flame gun 28 is dropped and waits for a period of time to complete the brazing. In the above operation, the operator only needs to control the switch and the waiting time to complete the brazing process of the heat exchanger 8, which reduces the physical strength of the personnel and greatly improves the brazing efficiency, and the degree of automation is high. The electrical components appearing in this article are all connected to an external main controller and 220V AC power, and the main controller can be a conventional known device that controls a computer, etc. The specific implementation method of the present disclosure omits the detailed description of known functions and known components. To ensure the compatibility of the equipment, the operating methods used are consistent with the parameters of marketed equipment.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic brazing device for aluminum heat exchangers for new energy vehicles, comprising an operating table (1), characterized in that: The upper surface of the operating table (1) is fixedly connected to a placing table (2), the upper surface of the placing table (2) is provided with an operating panel (5), the upper surface of the operating panel (5) is provided with a positioning hole (6), the surface of the operating panel (5) is slidably connected to a heat exchanger (8), the upper surface of the placing table (2) is fixedly connected to two guide pillars (7), the operating panel (5) is slidably connected to the two guide pillars (7), the upper surface of the operating panel (5) is provided with two fixed blocks (9), the upper surfaces of the two fixed blocks (9) are provided with two vertical blocks (10), and the two fixed blocks (9) are provided with two vertical blocks (10). A cross plate (12) is slidably connected to one side of the vertical block (10), and a plurality of tooth openings (13) are provided at both ends of the cross plate (12). Two synchronous motors (14) are provided on the upper surface of one of the cross plates (12) near the operating plate (5), and two electric push rods (15) are slidably connected to the upper surfaces of the two synchronous motors (14). Two sliding sleeves (16) are fixedly connected to the upper surfaces of the two electric push rods (15), and the interiors of the two sliding sleeves (16) are slidably connected to the cross plate (12). The upper surface of the operating plate (5) Two sets of reverse motors (17) are fixedly connected, and the upper surfaces of the two sets of reverse motors (17) are rotatably connected to four electric rotating rods (18). Gears (19) are fixedly connected to the arc surfaces of the two sets of electric rotating rods (18), and the gears (19) mesh with the teeth (13) of the cross plate (12). The other two ends of the cross plate (12) are fixedly connected to positioning rings (20), and the upper surface of the positioning ring (20) is fixedly connected to a fixed cylinder (21), and the upper surface of the fixed cylinder (21) is slidably connected to a fuel tank (22), and the positioning ring (20) ) is connected to a plurality of positioning rods (23) by sliding rods on the upper surface thereof, a plurality of limiting rods (25) are inserted on the arc surfaces of the plurality of positioning rods (23), a plurality of connecting cylinders (26) are fixedly connected to one end of the plurality of positioning rods (23) away from the handle (24), a plurality of fixing devices (27) are rotatably connected to one side of the plurality of connecting cylinders (26), a plurality of flame guns (28) are slidably connected inside the plurality of fixing devices (27), and a plurality of oil delivery pipes (29) are fixedly connected to the upper surfaces of the plurality of flame guns (28).

2. The automatic brazing equipment for aluminum heat exchangers for new energy vehicles according to claim 1 is characterized in that: A placement groove (3) is provided on the upper surface of the placement platform (2), and the four corners of the placement groove (3) are in a quarter arc shape.

3. The automatic brazing equipment for aluminum heat exchangers for new energy vehicles according to claim 1 is characterized in that: Two pressing blocks (4) are fixedly connected at diagonal positions on the upper surface of the placement platform (2), and the cross-sections of the two pressing blocks (4) are rectangular.

4. The automatic brazing equipment for aluminum heat exchangers for new energy vehicles according to claim 1 is characterized in that: A handle (24) is fixedly connected to the upper surface of a plurality of the positioning rods (23), and the cross section of the handle (24) is circular.

5. The automatic brazing equipment for aluminum heat exchangers for new energy vehicles according to claim 1 is characterized in that: The upper surface of the operating panel (5) is provided with two partitions (30), and the two partitions (30) are plastic partitions.

6. The automatic brazing equipment for aluminum heat exchangers for new energy vehicles according to claim 1 is characterized in that: The cross sections of the two fixing blocks (9) are rectangular.

7. The automatic brazing equipment for aluminum heat exchangers for new energy vehicles according to claim 1 is characterized in that: The transverse surfaces of the two vertical blocks (10) are rectangular.

8. The automatic brazing equipment for aluminum heat exchangers for new energy vehicles according to claim 1 is characterized in that: A sliding opening (11) is provided on one side of the two upright blocks (10), and the cross section of the sliding opening (11) is rectangular.

9. An automatic brazing process for aluminum heat exchangers for new energy vehicles applied to the automatic brazing equipment for aluminum heat exchangers for new energy vehicles as described in claim 1, characterized in that: The following methods are included: 1) Fixing the heat exchanger (8): Slide the operating plate (5) upwards, place the brazed side of the heat exchanger (8) away from the inside of the placement groove (3), and then lower the operating plate (5) to fix it; 2) Start the flame gun (28): evenly place the positioning rod (23) at the sliding position of the positioning ring (20), install the connecting cylinder (26) and the fixture (27) to the lower end of the positioning rod (23), then insert and hang the flame gun (28) into the inside of the fixture (27), and then insert the oil delivery pipe (29) into the upper surface of the flame gun (28); 3) Start the motor: When the brazing of the heat exchanger (8) at one end is completed, the operator first starts the synchronous motor (14), the cross plate (12) rises, and then turns on the two sets of reverse motors (17). The reverse motor (17) rotates the gear (19) to transport the cross plate (12). When the cross plate (12) reaches the top, the reverse motor (17) is turned off, and then the synchronous motor (14) is turned off.

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