Air conditioner copper pipe detection device

Abstract

The invention belongs to the field of copper pipe detection, and particularly relates to an air conditioner copper pipe detection device which comprises a water tank, two U-shaped mounting frames are symmetrically arranged on the water tank, a first sliding mechanism used for driving the two mounting frames to relatively move in the length direction of the water tank is further arranged on the water tank, and first electric push rods are arranged on the mounting frames. The telescopic end of the first electric push rod is connected with a connecting mechanism used for locking and sealing one end of the copper pipe, and a bending mechanism capable of bending the copper pipe is arranged on the water pool. According to the invention, different states of the copper pipe in actual use can be simulated for detection, the detection area of the copper pipe can be continuously adjusted as required, the pressure application points of the copper pipe when the copper pipe is bent in different areas are continuously changed, the conditions of the copper pipe in more bending states are detected, and the detection efficiency is improved. And a more real and reliable reference basis is provided for the use of the copper pipe.

Description

Technical Field

[0001] The invention belongs to the field of copper tube detection, and in particular relates to an air-conditioning copper tube detection device. Background Art

[0002] Copper tubes play a vital role in each structure of the air-conditioning system. For example, copper tubes need to be installed between the compressor and the condenser to transport high-temperature and high-pressure gas. Copper tubes are also used between the evaporator and the compressor to transport low-temperature and low-pressure gas.

[0003] Copper tubes are key components for stable operation of air conditioners, and their quality directly affects the performance and life of air conditioners. Testing can ensure that each batch of copper tubes meets quality standards. At present, the commonly used copper tube testing method is to seal one end of the copper tube, connect the other end to the inflation device, put the copper tube in water, fill it with gas, and observe whether bubbles are generated in the water to test the air tightness of the copper tube.

[0004] At present, in split-type air conditioners, the indoor unit and the outdoor unit are connected by copper tubes. When installing the copper tubes, due to the limited installation position, they may be bent once or in multiple sections. The bending of the copper tubes may increase the risk of leakage. There will be a certain error in the data detected by the above-mentioned conventional air tightness detection method compared with the real data of the copper tube in actual use, resulting in insufficient copper tube detection data, which may mislead users and cause adverse consequences. Moreover, when the copper tube sealing head is used to seal the copper tube, it is usually necessary to use a connector that matches the copper tube to connect the copper tube end to the tube head of the inflation device. During the detection process, when performing air tightness detection on different copper tubes, it is necessary to replace different connectors according to the model of the copper tube, which is more cumbersome. Summary of the invention

[0005] In view of the above problems, an air-conditioning copper tube detection device provided in an embodiment of the present application can simulate different states of the copper tube during actual use for detection, and can continuously adjust the copper tube detection area according to needs, while continuously changing the pressure application point when the copper tube is bent in different areas, thereby detecting air leakage of the copper tube under more states, and providing more real and reliable reference data for the copper tube to be put into use.

[0006] In order to achieve the above-mentioned purpose, the embodiment of the present application provides the following technical solutions: The present invention provides an air-conditioning copper tube detection device, including a water pool, two U-shaped mounting frames are symmetrically arranged on the water pool, and a first sliding mechanism for driving the two mounting frames to move relative to each other along the length direction of the water pool is also arranged on the water pool, a first electric push rod is arranged on the mounting frame, and a connecting mechanism for locking and sealing one end of the copper tube is connected to the telescopic end of the first electric push rod, a bending mechanism capable of bending the copper tube is arranged on the water pool, and a second sliding mechanism for driving the bending mechanism to move along the expansion direction of the copper tube is also arranged on the water pool. The bending mechanism includes an outer sleeve fixedly connected to the second sliding mechanism and having a notch at the bottom, an inner sleeve with a notch is rotatably arranged in the outer sleeve, and three top pressure components capable of applying pressure to the copper tube are arranged on the inner wall of the inner sleeve along the length direction, and the three top pressure components are distributed in the inner sleeve at different pressure angles, and a pressure-bearing component for supporting the bending of the copper tube is arranged on the inner wall of the inner sleeve at a relative position of each top pressure component. The outer wall of the inner sleeve is provided with three guide grooves distributed along its length direction, the inner wall of the outer sleeve is fixedly provided with three guide bars, the guide bars are movably embedded in the corresponding guide grooves, the front and rear ends of the outer wall of the inner sleeve are provided with an arc-shaped rack composed of a plurality of tooth blocks, and the outer wall of the outer sleeve is provided with a driving unit that cooperates with the arc-shaped rack to drive the inner sleeve to rotate.

[0007] According to a favorable embodiment, the pressure assembly includes a first bracket fixedly arranged on the inner wall of the inner sleeve, a second electric push rod is arranged on the first bracket, and a pressure strip is fixedly connected to the telescopic end of the second electric push rod. The pressure-bearing assembly includes a second bracket fixedly arranged on the inner wall of the inner sleeve, a third electric push rod is arranged on the second bracket, and a semi-arc-shaped support frame is connected to the telescopic end of the third electric push rod, and two pressure rollers are rotatably arranged on the two pins of the support frame, and the two pressure rollers in the same pressure-bearing assembly are staggered with the pressure strip in the pressure assembly on the opposite side of the copper tube.

[0008] According to a preferred embodiment, arc-shaped through holes are opened on the outer wall of the outer sleeve at positions corresponding to the two arc-shaped racks, and the driving unit includes six gears, each three gears form a group and are rotatably arranged in the corresponding arc-shaped through holes, and the gears are meshingly connected with the corresponding arc-shaped racks, and the three gears in the same group are connected together by a sprocket transmission, and any two opposite gears in the two groups of gears are fixedly connected to a connecting shaft, and a driving motor is fixedly arranged on the surface of the outer sleeve, and the output shaft of the driving motor is fixedly connected to one end of the connecting shaft.

[0009] According to a favorable embodiment, the first sliding mechanism includes four first mounting seats respectively fixedly arranged on the outer walls of the left and right sides of the pool, a first screw is rotatably arranged between the two first mounting seats on the same side, the first screw is arranged as a bidirectional screw, two first sliders are threadedly arranged on the first screw, and the threaded connection directions of the two first sliders are opposite, one end of the mounting frame is fixedly arranged on the upper part of the first slider, one end of the two first screws is connected together through a sprocket transmission, and the other end of any first screw is connected to the first motor, and the first motor is fixedly arranged on the first mounting seat. Slide grooves are provided on the outer walls of the left and right sides of the pool, and the ends of the two first sliders close to each other are slidably arranged in the corresponding slide grooves.

[0010] According to a favorable embodiment, the connection mechanism includes a sliding sleeve fixedly connected to the telescopic end of the first electric push rod, a rectangular sliding hole is provided in the sliding sleeve, a guide seat with a rectangular hollow structure inside is movably provided in the sliding hole, a gas delivery pipe connected to the inside of the guide seat is fixedly connected to the top of the guide seat, and a gas injection pipe connected to the inside of the guide seat and having one end set in a conical shape is fixedly connected to the guide seat, a disc is threadedly connected to the outside of the gas injection pipe, a chuck is rotatably provided on the side of the disc away from the guide seat, and a plurality of L-shaped claws are movably provided on the side of the chuck close to the copper tube, and the claws are movably abutted against the nuts at the ends of the copper tubes. A sealing sleeve for sealing the copper tube port is sleeved on the front conical area of ​​the gas injection pipe.

[0011] According to a favorable embodiment, a surface of the side of the chuck away from the guide seat is provided with a plurality of movable grooves distributed along the circumference of the chuck, two first guide rods are fixedly arranged in the movable grooves, one end of the claw is movably plugged into the two first guide rods, and the surfaces of the two first guide rods are both sleeved with first springs movably arranged in the movable grooves, and the side of the claw close to the first spring is fixedly connected to the end close to the first spring.

[0012] According to a favorable embodiment, a limit bolt is threadedly provided at one end of the sliding sleeve away from the copper tube, and the lower end of the limit bolt is movably plugged into the upper surface of the guide seat, and second guide rods are provided on the left and right sides of the guide seat close to one end of the copper tube, and the two second guide rods are both slidably plugged into the surface of the sliding sleeve, and a second spring is provided on the surface of the second guide rod.

[0013] According to a favorable embodiment, the second sliding mechanism includes four second mounting seats fixedly arranged on the upper parts of the left and right sides of the pool, respectively; a second screw is rotatably arranged between the two second mounting seats on the same side; a second sliding block is threadedly arranged on the second screw; a connecting plate is fixedly connected between the upper part of the second sliding block and the outer sleeve; one ends of the two second screws are connected together through a sprocket transmission, and the other end of any second screw is connected to a second motor, and the second motor is fixedly arranged on the second mounting seat.

[0014] Compared with the prior art, the air conditioner copper tube detection device provided by the embodiment of the present invention has the following beneficial effects:

[0015] 1. In the present invention, not only can the conventional sealing test be performed after the copper tube is sealed and inflated, but the bending mechanism can also be used to perform multiple-section bending on a certain area of ​​the copper tube and then perform airtightness test. It can detect whether the copper tube leaks after being bent at multiple points in a single area. It is convenient for the staff to make technical adjustments to the copper tube according to the test results to ensure that the copper tube can be sealed when similar bending occurs during actual use.

[0016] 2. In the present invention, the bending mechanism provided can cooperate with the second sliding mechanism to move the bending mechanism to any area after the copper tube is unfolded for detection, so as to facilitate a more comprehensive air leakage detection of the copper tube, ensure the comprehensiveness of the single copper tube detection, and ensure the accuracy of the detection result.

[0017] 3. In the present invention, the connection mechanism is provided in which the gas injection tube with a conical front end is pressed against the copper tube to be tested by plugging, and the nut on the outer wall of the copper tube is driven to move by adjusting the claw, so that the claw limits the nut, thereby further achieving the purpose of locking the end of the copper tube and the gas injection tube. It is suitable for connecting copper tubes of different diameters for testing.

[0018] 4. In the present invention, the first sliding mechanism cooperates with the two connecting mechanisms to facilitate the unfolding and straightening of the copper tube to be tested that was originally coiled together, thereby reducing the difficulty of operation and facilitating subsequent testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is the overall three-dimensional structure diagram of the present invention.

[0020] Figure 2 It is a partial three-dimensional structural diagram of the present invention.

[0021] Figure 3 It is a schematic diagram of the connection mechanism, bending mechanism and copper tube in the present invention after being connected.

[0022] Figure 4 This is an external structural diagram after the connecting mechanism and the copper tube are connected in the present invention.

[0023] Figure 5 It is a planar cross-sectional structural diagram of the connection mechanism and the copper tube in the present invention after being connected.

[0024] Figure 6 for Figure 5 A magnified structural diagram of part A.

[0025] Figure 7 It is the external overall structure diagram of the bending mechanism in the present invention.

[0026] Figure 8 It is a schematic diagram of the split structure of the inner sleeve and the outer sleeve in the present invention.

[0027] Reference numerals in the figure: 1, water tank; 2, mounting frame; 3, first sliding mechanism; 301, first mounting seat; 302, first screw; 303, first slider; 4, first electric push rod; 5, connecting mechanism; 501, sliding sleeve; 502, guide seat; 503, air pipe; 504, air injection pipe; 505, disc; 506, chuck; 5061, first guide rod; 5062, first spring; 507, claw; 6, bending mechanism; 601, outer sleeve; 6011, guide bar; 6012, arc-shaped through hole; 602, inner sleeve; 6021, guide groove; 6022, arc-shaped rack ;603, top pressure assembly;6031, first bracket;6032, second electric push rod;6033, top pressure strip;604, pressure assembly;6041, second bracket;6042, third electric push rod;6043, support frame;6044, pressure roller;605, drive unit;6051, gear;6052, connecting shaft;6053, drive motor;7, second sliding mechanism;701, second mounting seat;702, second screw rod;703, second slider;704, connecting plate;8, limit bolt;9, second guide rod;10, second spring;11, copper tube;12, nut. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1-8 This application is further described in detail.

[0029] Please refer to Figure 1A copper tube detection device for an air conditioner comprises a water pool 1, on which two U-shaped mounting frames 2 are symmetrically arranged, and the water pool 1 is also provided with a first sliding mechanism 3 for driving the two mounting frames 2 to move relative to each other along the length direction of the water pool 1, a first electric push rod 4 is arranged on the mounting frame 2, and a connecting mechanism 5 for locking and sealing one end of a copper tube 11 is connected to the telescopic end of the first electric push rod 4, a bending mechanism 6 capable of bending the copper tube 11 is arranged on the water pool 1, and the water pool 1 is also provided with a second sliding mechanism 7 for driving the bending mechanism 6 to move along the length direction of the copper tube 11. One end of the copper tube 11 is sealed and locked through the connecting mechanism 5, and then the copper tube 11 that was originally coiled together is unfolded and straightened through the first sliding mechanism 3 and the cooperation of personnel to ensure that the copper tube 11 will not be tangled after being unfolded, and then the copper tube 11 is sent into the water pool 1 for inflation detection through the first electric push rod 4. After the test is qualified, the copper tube 11 is lifted to a certain height, and then the copper tube 11 is bent by the bending mechanism 6. After bending, it is put into the water pool 1 again for inflation and detection to observe whether bubbles appear.

[0030] See also Figure 2 , Figure 4 , Figure 5 and Figure 6 The connecting mechanism 5 includes a sliding sleeve 501 fixedly connected to the telescopic end of the first electric push rod 4, a rectangular sliding hole is opened in the sliding sleeve 501, and a guide seat 502 with a hollow interior and a rectangular shape is movably arranged in the sliding hole, and a gas pipe 503 communicating with the interior of the guide seat 502 is fixedly connected to the top of the guide seat 502, and a gas injection pipe 504 communicating with the interior of the guide seat 502 and having one end set in a conical shape is fixedly connected to the guide seat 502, and a disc 505 is connected to the outer thread of the gas injection pipe 504, and a chuck 506 is rotatably arranged on the side of the disc 505 away from the guide seat 502, and a plurality of L-shaped claws 507 that move radially along the chuck 506 and are close to the copper tube 11 are slidably arranged, and the claws 507 are movably abutted against the nut 12 at the end of the copper tube 11, and a sealing sleeve for sealing the port of the copper tube 11 is sleeved on the front conical area of ​​the gas injection pipe 504. Among them, a side surface of the chuck 506 away from the guide seat 502 is provided with a plurality of movable grooves distributed along the circumference of the chuck 506, and two first guide rods 5061 are fixedly arranged in the movable grooves. One end of the claw 507 is movably plugged into the two first guide rods 5061, and the surfaces of the two first guide rods 5061 are both sleeved with first springs 5062 movably arranged in the movable grooves, and the side of the claw 507 close to the first spring 5062 is fixedly connected to the end close to the first spring 5062.

[0031] In order to facilitate the sealing and locking of the ends of different copper tubes 11, the staff manually pushes aside the claw 507 so that the port of the copper tube 11 can be inserted into the front end conical surface of the gas injection tube 504 for abutment. A sealing sleeve is arranged on the front end conical surface of the gas injection tube 504 to ensure the sealing after the gas injection tube 504 is inserted into the port of the copper tube 11 and abuts against it. The claw 507 is released so that the claw 507 can move toward the surface of the copper tube 11 under the action of the first spring 5062. The staff fixes the chuck 506 with one hand to limit the rotation of the chuck 506, and rotates the disc 505 with the other hand so that the disc 505 rotates and moves along the gas injection tube 504. At the same time, the movement of the disc 505 drives the claw 507 to move toward the nut 12 on the port surface of the copper tube 11 until the claw 507 abuts against the nut 12 on the port surface of the copper tube 11 and no longer moves. During gas injection, gas is injected only through the gas injection tube 504 at one end, and the gas injection tube 504 at the other end remains sealed, so that the other end of the copper tube 11 is in a sealed state. It should be noted that the port of the copper tube 11 is trumpet-shaped, and the port at one end of the nut 12 is large and can be sleeved on the surface of the port of the copper tube 11, and the port at the other end is small, so that the nut 12 cannot slide out of the port of the copper tube 11. The nut 12 is a matching part of the copper tube 11 and can slide at the port of the copper tube 11 for threaded connection with external pipe fittings during installation. The nut 12 is abutted and limited by a plurality of claws 507, and at the same time, the smaller end of the nut 12 port is pressed against the trumpet-shaped outer wall of the port of the copper tube 11, pushing the copper tube 11 and the gas injection tube 504 to fit tightly.

[0032] See also Figure 1 and Figure 2 The first sliding mechanism 3 includes four first mounting seats 301 respectively fixedly arranged on the outer walls of the left and right sides of the pool 1. A first screw rod 302 is rotatably arranged between the two first mounting seats 301 on the same side. The first screw rod 302 is set as a bidirectional screw rod. Two first sliders 303 are threadedly arranged on the first screw rod 302. The threaded connection directions of the two first sliders 303 are opposite. One end of the mounting frame 2 is fixedly arranged on the upper part of the first slider 303. One end of the two first screw rods 302 is connected together through a sprocket transmission, and the other end of any first screw rod 302 is connected to the first motor, which is fixedly arranged on the first mounting seat 301. Slide grooves are provided on the outer walls of the left and right sides of the pool 1. The ends of the two first sliders 303 that are close to each other are slidably arranged in the corresponding slide grooves. The first motor drives the first screw rod 302 to rotate, so that the two first sliders 303 can move toward each other, so that the two connecting mechanisms 5 can drive the two ends of the copper tube 11 to unfold.

[0033] See also Figure 4 and Figure 5, a limit bolt 8 is threadedly provided at one end of the sleeve 501 away from the copper tube 11, and the lower end of the limit bolt 8 is movably plugged with the upper surface of the guide seat 502. The left and right sides of the guide seat 502 near the copper tube 11 are provided with second guide rods 9, and the two second guide rods 9 are slidably plugged with the surface of the sleeve 501, and the surface of the second guide rods 9 is sleeved with a second spring 10. The guide seat 502 is locked in the sleeve 501 by the limit bolt 8. When the end of the copper tube 11 is fixed by the connecting mechanism 5, the connecting mechanism 5 pulls the copper tube 11 to move under the traction of the first sliding mechanism 3, and the guide seat 502 will not slide relative to the sleeve 501. After the copper tube 11 is fully unfolded, the limit bolt 8 is rotated to release the limit of the guide seat 502. When the copper tube 11 is bent later, the bending of the copper tube 11 will pull the two ends of the copper tube 11 to move inward. At this time, the guide seat 502 will move with it to compensate for the displacement change caused by the bending of the copper tube 11.

[0034] See also Figure 2 , Figure 7 and Figure 8 The bending mechanism 6 includes an outer sleeve 601 fixedly connected to the second sliding mechanism 7 and having a notch at the bottom, an inner sleeve 602 with a notch is rotatably arranged in the outer sleeve 601, and three top pressure components 603 capable of applying pressure to the copper tube 11 are arranged on the inner wall of the inner sleeve 602 along the length direction, and the three top pressure components 603 are distributed in the inner sleeve 602 at different pressure angles, and a pressure-bearing component 604 for supporting the bending of the copper tube 11 is arranged on the inner wall of the inner sleeve 602 at a relative position of each top pressure component 603; wherein, the top pressure component 603 includes a first bracket 6031 fixedly arranged on the inner wall of the inner sleeve 602, a second electric push rod 6032 is arranged on the first bracket 6031, and a top pressure strip 6033 is fixedly connected to the telescopic end of the second electric push rod 6032. The pressure-bearing component 604 includes a second bracket 6041 fixedly arranged on the inner wall of the inner sleeve 602, and a third electric push rod 6042 is arranged on the second bracket 6041. The telescopic end of the third electric push rod 6042 is connected to a semi-arc-shaped support frame 6043, and two pressure rollers 6044 are rotatably arranged on the two pins of the support frame 6043. The two pressure rollers 6044 in the same pressure-bearing component 604 are alternately distributed with the top pressure strip 6033 in the top pressure component 603 on the opposite side of the copper tube 11.

[0035] In order to simulate the bending caused by the extrusion force from different directions when the copper tube 11 is actually used, the second electric push rod 6032 on the middle top pressure assembly 603 pushes the top pressure bar 6033 to move toward the copper tube 11, and at the same time, the third electric push rod 6042 opposite to the second electric push rod 6032 pushes the support frame 6043 to move toward the copper tube 11, so that the top pressure bar 6033 fits the surface of the copper tube 11 while the two pressure rollers 6044 can support the other side of the copper tube 11 and partially bend the copper tube 11. After bending at a single position, the copper tube 11 can be sent into the pool 1 for air tightness testing by the first electric push rod 4. If it is qualified, the copper tube 11 can be lifted into the inner sleeve 602 again, and then the other two top pressure assemblies 603 cooperate with the corresponding pressure assemblies 604 to bend the corresponding positions, so as to perform multi-point bending in the same area of ​​the copper tube 11. The copper tube 11 is put into water for testing again, so that a certain area on the copper tube 11 can be fully bent at multiple angles for air tightness testing. Observe whether the copper tube has air leakage under different conditions.

[0036] See also Figure 1 and Figure 2 The second sliding mechanism 7 includes four second mounting seats 701 respectively fixedly arranged on the upper part of the left and right sides of the pool 1, a second screw 702 is rotatably arranged between the two second mounting seats 701 on the same side, a second slider 703 is threadedly arranged on the second screw 702, a connecting plate 704 is fixedly connected between the upper part of the second slider 703 and the outer sleeve 601, one end of the two second screws 702 is connected together through a sprocket transmission, and the other end of any second screw 702 is connected to a second motor, and the second motor is fixedly arranged on the second mounting seat 701. The second motor drives the second screw 702 to rotate, so that the second slider 703 can move horizontally, thereby driving the bending mechanism 6 to move along the length direction of the copper tube 11 for position adjustment.

[0037] See also Figure 7 and Figure 8The outer wall of the inner sleeve 602 is provided with three guide grooves 6021 distributed along its length direction, the inner wall of the outer sleeve 601 is fixedly provided with three guide bars 6011, and the guide bars 6011 are movably embedded in the corresponding guide grooves 6021. The front and rear ends of the outer wall of the inner sleeve 602 are provided with an arc-shaped rack 6022 composed of a plurality of tooth blocks, and the outer wall of the outer sleeve 601 is provided with a driving unit 605 that cooperates with the arc-shaped rack 6022 to drive the inner sleeve 602 to rotate. Arc-shaped through holes 6012 are provided at positions corresponding to the two arc-shaped racks 6022 on the outer wall of the outer sleeve 601. The driving unit 605 includes six gears 6051. Each group of three gears 6051 is rotatably arranged in the corresponding arc-shaped through holes 6012, and the gears 6051 are meshingly connected with the corresponding arc-shaped racks 6022. The three gears 6051 in the same group are connected through a sprocket transmission, and any two opposite gears 6051 in the two groups of gears 6051 are fixedly connected to a connecting shaft 6052. A driving motor 6053 is fixedly arranged on the surface of the outer sleeve 601, and the output shaft of the driving motor 6053 is fixedly connected to one end of the connecting shaft 6052.

[0038] In order to further expand the comprehensiveness of the copper tube 11 bending detection, the bending mechanism 6 slides to different positions along the length direction of the copper tube 11 through the second sliding mechanism 7, and at the same time, the six gears 6051 rotate synchronously through the driving motor 6053 in conjunction with the connecting shaft 6052 and the sprocket transmission, and the gear 6051 drives the arc rack 6022 to rotate, so that the inner sleeve 602 can rotate around the internal copper tube 11, so that the top pressure component 603 can press and bend the outer wall of the copper tube 11 at different angles. After bending, the inner sleeve 602 is reset to the initial state to ensure that the notch of the inner sleeve 602 is aligned with the notch of the outer sleeve 601, so that the copper tube 11 can be smoothly moved down to the pool 1 for detection. This is repeated, and the copper tube 11 detection area can be continuously adjusted as needed. At the same time, the pressure angle of the copper tube 11 when bending in different areas is continuously changed to observe whether there is air leakage when the copper tube is bent in different areas.

[0039] During specific operation, after one end of the copper tube 11 is plugged into the gas injection tube 504 at one end of the connecting mechanism 5, the clamping claw 507 is adjusted to seal and lock one end of the copper tube 11, and then the copper tube 11 that was originally coiled together is unfolded and straightened through the cooperation of the first sliding mechanism 3 and personnel to ensure that the copper tube 11 will not get tangled after being unfolded. The straightened copper tube 11 is sent into the water pool 1 through the first telescopic rod for inflation detection, and is connected to the gas pipe 503 through an external gas supply device, and the gas is transported to the gas injection pipe 504 through the guide seat 502 to observe whether bubbles are generated in the water. After passing the test, the copper tube 11 is lifted to a certain height to ensure that the copper tube 11 is in the axial area of ​​the inner sleeve 602, and then the copper tube 11 is bent by the bending mechanism 6. Before bending, the staff manually rotates the limit bolt 8 on the sliding sleeve 501 to release the limit on the guide seat 502 to ensure that when the copper tube 11 is bent subsequently, the bending of the copper tube 11 will pull the two ends of the copper tube 11 inward, and the guide seat 502 will follow the movement to compensate for the displacement change caused by the bending of the copper tube 11.

[0040] When bending, the second electric push rod 6032 on the middle top pressure assembly 603 pushes the top pressure strip 6033 to move toward the copper tube 11, and at the same time, the third electric push rod 6042 opposite to the second electric push rod 6032 pushes the support frame 6043 to move toward the copper tube 11, so that the top pressure strip 6033 is in contact with the surface of the copper tube 11, and the two pressure rollers 6044 can support the other side of the copper tube 11, and partially bend the copper tube 11. After bending at a single position, the copper tube 11 can be sent into the pool 1 through the first electric push rod 4 for air tightness testing again to observe whether bubbles are generated. If qualified, the copper tube 11 can be lifted into the inner sleeve 602 again, and then the other two top pressure assemblies 603 cooperate with the corresponding pressure assemblies 604 to bend the copper tube 11, so as to perform multi-point bending in the same area of ​​the copper tube 11, and the copper tube 11 is sent into the water for testing again.

[0041] After the position detection of a single area on the surface of the copper tube 11 is completed, the staff releases the gas in the copper tube 11, re-fixes the copper tube 11, and can also drive the bending mechanism 6 to move to the downward detection area of ​​the copper tube 11 through the second sliding mechanism 7. At the same time, the six gears 6051 can be driven by the driving motor 6053 to cooperate with the connecting shaft 6052 and the sprocket transmission, so that the gear 6051 drives the arc rack 6022 to rotate, so that the inner sleeve 602 can rotate around the inner copper tube 11, so that the top pressure component 603 can press the outer wall of the copper tube 11 at different angles. Pressure bending is performed. After bending, the inner sleeve 602 is reset to the initial state to ensure that the notch of the inner sleeve 602 is aligned with the notch of the outer sleeve 601, so as to ensure that the copper tube 11 can be smoothly moved down to the pool 1 for detection. This process is repeated, and the detection area of ​​the copper tube 11 can be continuously adjusted as needed. At the same time, the pressure angle of the copper tube 11 when bending in different areas is continuously changed, so that the copper tube 11 is bent in different states, and the air leakage in this bending state is observed. If air leakage occurs, it indicates that the copper tube 11 cannot withstand the corresponding number of bendings. If there is no air leakage, it indicates that the bending performance of the copper tube 11 is qualified.

[0042] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An air conditioner copper tube detection device, comprising a water pool (1), characterized in that: The water pool (1) is symmetrically provided with two U-shaped mounting frames (2), and the water pool (1) is also provided with a first sliding mechanism (3) for driving the two mounting frames (2) to move relative to each other along the length direction of the water pool (1); the mounting frame (2) is provided with a first electric push rod (4), and the telescopic end of the first electric push rod (4) is connected to a connecting mechanism (5) for locking and sealing one end of the copper tube (11); the water pool (1) is provided with a bending mechanism (6) capable of bending the copper tube (11), and the water pool (1) is also provided with a second sliding mechanism (7) for driving the bending mechanism (6) to move along the length direction of the copper tube (11); The bending mechanism (6) comprises an outer sleeve (601) fixedly connected to the second sliding mechanism (7) and having a notch at the bottom; an inner sleeve (602) having a notch is rotatably arranged inside the outer sleeve (601); three pressing assemblies (603) capable of applying pressure to the copper tube (11) are arranged on the inner wall of the inner sleeve (602) along the length direction; the three pressing assemblies (603) are distributed in the inner sleeve (602) at different pressure applying angles; and a pressure bearing assembly (604) for supporting the bending of the copper tube (11) is arranged on the inner wall of the inner sleeve (602) at a relative position to each pressing assembly (603); The outer wall of the inner sleeve (602) is provided with three guide grooves (6021) distributed along its length direction; the inner wall of the outer sleeve (601) is fixedly provided with three guide bars (6011), and the guide bars (6011) are movably embedded in the corresponding guide grooves (6021); an arc-shaped rack (6022) composed of a plurality of tooth blocks is provided at both the front and rear ends of the outer wall of the inner sleeve (602); and a driving unit (605) is provided on the outer wall of the outer sleeve (601) for cooperating with the arc-shaped rack (6022) to drive the inner sleeve (602) to rotate.

2. The air conditioner copper tube detection device according to claim 1, characterized in that: The pressing assembly (603) comprises a first bracket (6031) fixedly arranged on the inner wall of the inner sleeve (602), a second electric push rod (6032) being arranged on the first bracket (6031), and a pressing strip (6033) being fixedly connected to the telescopic end of the second electric push rod (6032); The pressure-bearing component (604) includes a second bracket (6041) fixedly arranged on the inner wall of the inner sleeve (602), a third electric push rod (6042) is arranged on the second bracket (6041), the telescopic end of the third electric push rod (6042) is connected to a semi-arc-shaped support frame (6043), two pins of the support frame (6043) are rotatably provided with two pressure rollers (6044), and the two pressure rollers (6044) in the same pressure-bearing component (604) are staggeredly distributed with the top pressure strip (6033) in the top pressure component (603) on the opposite side of the copper tube (11).

3. The air conditioner copper tube detection device according to claim 1, characterized in that: The outer wall of the outer sleeve (601) is provided with arc-shaped through holes (6012) at positions corresponding to the two arc-shaped racks (6022). The driving unit (605) comprises six gears (6051), and each group of three gears (6051) is rotatably arranged in the corresponding arc-shaped through holes (6012). The gears (6051) are meshed and connected with the corresponding arc-shaped racks (6022). The three gears (6051) in the same group are connected through a sprocket transmission, and any two opposite gears (6051) in the two groups of gears (6051) are fixedly connected to a connecting shaft (6052). A driving motor (6053) is fixedly arranged on the surface of the outer sleeve (601), and the output shaft of the driving motor (6053) is fixedly connected to one end of the connecting shaft (6052).

4. The air conditioner copper tube detection device according to claim 2, characterized in that: The first sliding mechanism (3) comprises four first mounting seats (301) respectively fixedly arranged on the outer walls of the left and right sides of the pool (1); a first screw rod (302) is rotatably arranged between the two first mounting seats (301) on the same side; the first screw rod (302) is arranged as a bidirectional screw rod; two first sliding blocks (303) are threadedly arranged on the first screw rod (302); the two first sliding blocks (303) are threadedly connected in opposite directions; one end of the mounting frame (2) is fixedly arranged on the upper part of the first sliding block (303); one end of the two first screw rods (302) are connected together through a sprocket transmission; and the other end of any one of the first screw rods (302) is connected to a first motor; the first motor is fixedly arranged on the first mounting seat (301); Slide grooves are provided on the left and right outer walls of the water pool (1), and the ends of the two first sliding blocks (303) close to each other are slidably arranged in the corresponding slide grooves.

5. The air conditioner copper tube detection device according to claim 1, characterized in that: The connecting mechanism (5) comprises a sliding sleeve (501) fixedly connected to the telescopic end of the first electric push rod (4), a rectangular sliding hole is provided in the sliding sleeve (501), a guide seat (502) with a hollow structure and a rectangular shape is movably arranged in the sliding hole, the top of the guide seat (502) is fixedly connected to an air delivery pipe (503) communicating with the inside of the guide seat (502), and the guide seat (502) is fixedly connected to a conical end thereof. A gas injection tube (504) is provided, wherein the gas injection tube (504) is externally threadedly connected to a disc (505), a chuck (506) is rotatably provided on a side of the disc (505) away from the guide seat (502), a plurality of L-shaped claws 507 (507) are slidably provided on a side of the chuck (506) close to the copper tube (11) and move radially along the chuck (506), and the claws (507) are movably abutted against a nut (12) at the end of the copper tube (11); The front conical area of ​​the gas injection pipe (504) is sleeved with a sealing sleeve for sealing the port of the copper pipe (11).

6. The air conditioner copper tube detection device according to claim 5, characterized in that: A plurality of movable grooves distributed along the circumference of the chuck (506) are provided on a surface of one side of the chuck (506) away from the guide seat (502), and two first guide rods (5061) are fixedly arranged in the movable grooves. One end of the clamping claw (507) is movably plugged into the two first guide rods (5061), and the surfaces of the two first guide rods (5061) are both sleeved with first springs (5062) movably arranged in the movable grooves, and a side of the clamping claw (507) close to the first spring (5062) is fixedly connected to an end of the first spring (5062) that is close to the first spring (5062).

7. The air conditioner copper tube detection device according to claim 5, characterized in that: A limiting bolt (8) is threadedly provided at one end of the sliding sleeve (501) away from the copper tube (11), and the lower end of the limiting bolt (8) is movably plugged into the upper surface of the guide seat (502). Second guide rods (9) are provided on both sides of the left and right sides of the guide seat (502) close to one end of the copper tube (11), and the two second guide rods (9) are slidably plugged into the surface of the sliding sleeve (501), and the surface of the second guide rods (9) is sleeved with a second spring (10).

8. The air conditioner copper tube detection device according to claim 1, characterized in that: The second sliding mechanism (7) comprises four second mounting seats (701) respectively fixedly arranged at the upper parts of the left and right sides of the pool (1); a second screw rod (702) is rotatably arranged between the two second mounting seats (701) on the same side; a second sliding block (703) is threadedly arranged on the second screw rod (702); a connecting plate (704) is fixedly connected between the upper part of the second sliding block (703) and the outer sleeve (601); one end of the two second screw rods (702) are connected together through a sprocket transmission, and the other end of any second screw rod (702) is connected to a second motor, and the second motor is fixedly arranged on the second mounting seat (701).

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