Air conditioner refrigerant pipe sealing detection equipment and detection line

Abstract

The invention relates to the technical field of air conditioner detection equipment, and particularly discloses air conditioner refrigerant pipe sealing detection equipment and a detection line, and the air conditioner refrigerant pipe sealing detection equipment comprises a conveying plane, a plurality of sliding carrier plates, a plurality of groups of detection assemblies and a material pushing device for blanking; the sliding carrying plates are all arranged on the conveying plane, the detection assemblies are arranged on the sliding carrying plates one by one, the pushing device is arranged on one side of the conveying plane, a material supporting flat plate and a pulling head mechanism are arranged over each sliding carrying plate, and a vacuum pump body and a high-pressure air pump are arranged on each material supporting flat plate. The air pumping end of the vacuum pump body is connected with the air pressure connector through the vacuumizing pipeline, and the uncoupling air opening is formed in the outer portion of the air pressure connector, so that when the high-pressure air pump supplies air to the uncoupling air opening, the air pressure connector can be automatically separated from the end of the refrigerant pipe, and the air pressure connector is completely pulled out in cooperation with the head pulling mechanism; and the refrigerant pipe qualified in sealing detection can be effectively and automatically blanked, so that the working efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioner detection equipment, and particularly to an air conditioner refrigerant pipe sealing detection equipment and a detection line. Background Art

[0002] The refrigeration system includes a heat exchanger and a compressor. The heat exchanger is a device that transfers part of the heat of the hot fluid to the cold fluid, also known as a heat exchanger. The compressor is mainly a driven fluid machine that raises low-pressure gas to high-pressure gas. During the working process, it sucks in low-temperature and low-pressure refrigerant gas from the suction pipe, compresses it by driving a piston through the operation of the motor, and then discharges high-temperature and high-pressure refrigerant gas to the exhaust pipe, providing power for the refrigeration cycle.

[0003] In the refrigeration system, refrigerant pipes are mainly used as the conveying medium pipes between the heat exchanger and the compressor. Therefore, during the production process of the refrigeration system, it is necessary to ensure the tightness of the refrigerant pipes. During the assembly process of the refrigeration system, the refrigerant pipes need to be subjected to a sealing test to ensure the production quality. In the existing detection process of refrigerant pipes, the main method is vacuum detection. The existing vacuum detection method is to seal either end of the inlet / outlet of the refrigerant pipe, and perform a vacuum pumping operation on the other end of the inlet / outlet, so that the refrigerant pipe is in a negative pressure state, and the refrigerant pipe is placed in a pressure detection box. The pressure value of the refrigerant pipe in the negative pressure state is obtained through the pressure detection box to determine whether the pressure value of the refrigerant pipe meets the standard, and then to determine whether the tightness of the refrigerant pipe meets the standard. After the existing refrigerant pipes are detected, it is necessary to manually remove the connection interface between the refrigerant pipe and the vacuum pump body, and in continuous production, it is necessary to classify the qualified products and unqualified products in sequence. Although using a vacuum detection device to detect the refrigerant pipes can improve work efficiency, most of the existing vacuum detection devices adopt a single-station working mode, that is, a single detection station is used to perform vacuum detection on a single refrigerant pipe, and it is not applicable to continuous production. Therefore, it is also necessary to manually unload the material to make the detection station vacant before placing and detecting the subsequent refrigerant pipes. The overall work efficiency is not high and it is not applicable to continuous production.

[0004] With reference to the Chinese invention patent application with publication number "CN110987300A" and titled "An air-conditioning refrigerant pipe sealing detection device", the technical scheme discloses "An air-conditioning refrigerant pipe sealing detection device, comprising a box body, a base is provided in the box body, used to detect whether the refrigerant pipe is leaking; a positioning component, the positioning component is slidably arranged on the upper surface of the base, used to position the refrigerant pipe; an inflation component, the inflation component is fixedly arranged on the end of the base away from the positioning component, and the inflation component inflates the refrigerant pipe. It solves the problem of first inflating the refrigerant pipe and then putting it into the vacuum box for detection, which wastes time and cannot guarantee that there will be no gas leakage during the inflation process. The problem of waste is caused by the cooperation between the first pulley and the second pulley. Although the technical solution can drive the rotating plate to rotate by the cooperation between the first pulley and the second pulley, while rotating, the upper clamping plate and the lower clamping plate clamp the inflation pipe mouth and rotate synchronously, and the inflation pipe mouth is screwed on the refrigerant pipe, and then the refrigerant pipe is inflated to complete the pipe mouth docking action, thereby improving the detection efficiency. However, the technical solution still needs to fix the refrigerant pipe on the positioning assembly, and the interface is likely to fall off during the inflation process of the refrigerant pipe, affecting the detection accuracy. In addition, after the sealing detection is completed, the pipe mouth needs to be manually pulled out and the blanks need to be transported, and the automation efficiency is not high.

[0005] Therefore, how to automatically blank refrigerant pipes with qualified sealing during continuous production is a technical problem that technicians need to solve. Summary of the invention

[0006] The object of the present invention is to provide an air-conditioning refrigerant pipe sealing detection device and a detection line to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above object, the present invention provides the following technical solutions: An air conditioning refrigerant pipe sealing detection device, comprising: a conveying plane, a plurality of sliding carrier plates, a plurality of detection components and a material pushing device; A plurality of the sliding carriers are located directly above the conveying plane, a plurality of the detection components are arranged one by one on the plurality of the sliding carriers, and the pushing device is arranged on one side of the conveying plane, the pushing device comprises a bearing plate and a movable plate, an ejection mechanism is arranged on the movable plate, a pushing plate is arranged on the power output end of the ejection mechanism, one side of the pushing plate faces the conveying plane, the movable plate is slidingly arranged on the bearing carrier, a moving mechanism is arranged on the bearing carrier, the power output end of the moving mechanism is transmission-connected with the movable plate, the moving mechanism is used to control the sliding distance of the movable plate, the conveying plane is used to sequentially convey a plurality of the sliding carriers to face the pushing device one by one, and the detection component is used to detect the vacuum value of the refrigerant pipe; Above each of the sliding carrier plates, a material supporting flat plate and a plug pulling mechanism are provided. A vacuum pump body and a high-pressure air pump are provided on the material supporting flat plate. The air extraction end of the vacuum pump body is connected with a pneumatic joint through a vacuum extraction pipeline. The pneumatic joint is detachably connected to the end of the refrigerant pipe, and a disconnection air port is provided outside the pneumatic joint. The plug pulling mechanism is located directly above the material supporting flat plate. The plug pulling mechanism includes at least one pneumatic balancer. The power output end of the pneumatic balancer is connected to the outside of the pneumatic joint. The air outlet end of the high-pressure air pump is communicated with the disconnection air port.

[0008] Preferably, the detection assembly includes a vacuum gauge and a display screen. The detection end of the vacuum gauge is connected to the vacuum extraction pipeline. The vacuum gauge is used to obtain the vacuum degree value of the refrigerant pipe. The display screen is used to display the vacuum degree value of the refrigerant pipe.

[0009] Preferably, a guiding rack is provided on the surface of the moving plate facing the bearing support plate, and the guiding rack is horizontally distributed along the surface of the moving plate. The power output end of the moving mechanism is provided with a driving gear, and the driving gear meshes with the guiding rack.

[0010] Preferably, guiding cylinders are provided on the pushing flat plate, and guiding sleeves are further provided on one surface of the moving plate. The guiding cylinders are slidably inserted into the guiding sleeves.

[0011] Preferably, a conveying guide rail is provided directly below the conveying plane. A plurality of sliding carrier plates are slidably arranged on the conveying guide rail. Guiding rollers and limiting grooved wheels are respectively rotatably arranged on the surfaces of the sliding carrier plates facing the conveying plane. The outside of the guiding roller is tangent to the top of the conveying guide rail, and the groove of the limiting grooved wheel abuts against the outside of the conveying guide rail.

[0012] Preferably, when there are two pneumatic joints, one of the pneumatic joints is detachably connected to one end of the refrigerant pipe, and the other pneumatic joint is detachably connected to the other end of the refrigerant pipe. Two pneumatic balancers are provided, and the two pneumatic balancers are respectively connected to the two pneumatic joints one by one.

[0013] Preferably, connecting hook members are provided on the power output ends of the two pneumatic balancers, and limiting clamping grooves are provided outside the two pneumatic joints. The connecting hook members are buckled outside the limiting clamping grooves.

[0014] Preferably, the end of the material supporting flat plate away from the pushing flat plate is inclined downward and provided with a rotating roller.

[0015] Preferably, a control mechanism is further included outside the conveying plane. The detection assembly is connected to the control mechanism, and the control mechanism is respectively connected to the pushing device, the vacuum pump body, the high-pressure air pump and the plug pulling mechanism one by one.

[0016] On the other hand, the present invention also provides an air-conditioning refrigerant pipe sealing detection line, which includes the automatic blanking device as described in any one of the above, and the air-conditioning refrigerant pipe sealing detection line further includes a clamping and feeding device and a blanking transportation plane; A feeding bin is arranged outside the transportation plane. The clamping and feeding device includes a clamping mechanism and a displacement mechanism. The clamping and feeding device is located between the feeding bin and the transportation plane, and the clamping mechanism is arranged at the power output end of the displacement mechanism. The feeding bin is used to supply refrigerant pipes to be subjected to sealing detection, the clamping mechanism is used to clamp the refrigerant pipes to be subjected to sealing detection, and the displacement mechanism is used to control the moving range of the clamping mechanism; The blanking transportation plane is arranged on the other side of the transportation plane, and one end of the blanking transportation plane corresponds to the pushing device. The blanking transportation plane is used to transport refrigerant pipes with qualified vacuum degree values.

[0017] Compared with the prior art, the present invention provides an air-conditioning refrigerant pipe sealing detection device and a detection line, and the beneficial effects are as follows: by providing a transportation plane, a plurality of sliding carrier plates, a plurality of groups of detection components and a pushing device; a plurality of groups of detection components are respectively arranged on a plurality of sliding carrier plates, and the detection components are used to detect the vacuum degree of the refrigerant pipes on the sliding carrier plates. Whether the refrigerant pipe is qualified in terms of sealing performance is judged by the vacuum degree value. The pushing device is arranged on one side of the transportation plane, and a plurality of sliding carrier plates are all located on the transportation plane. The transportation plane is used to sequentially transport a plurality of sliding carrier plates to face the pushing device one by one. When the refrigerant pipe is qualified in terms of sealing performance, the pushing device can be used to push and discharge the material. The pushing device includes a bearing support plate and a moving plate member. By providing an ejecting mechanism on the moving plate member, and by providing a pushing flat plate at the power output end of the ejecting mechanism, one side of the pushing flat plate faces the transportation plane, and the ejecting mechanism can be used to drive the pushing flat plate to complete an automatic pushing action, realizing the automatic blanking action of the refrigerant pipes with qualified sealing detection. The moving plate member is slidably arranged on the bearing support plate, and by providing a moving mechanism on the bearing support plate, the power output end of the moving mechanism is in transmission connection with the moving plate member. Therefore, the moving mechanism can be used to control the sliding distance of the moving plate member to ensure that the pushing flat plate is aligned with the refrigerant pipes with qualified sealing detection; By arranging a material supporting flat plate and a plug pulling mechanism directly above each sliding carrier plate, a vacuum pump body and a high-pressure air pump are arranged on the material supporting flat plate. The air extraction end of the vacuum pump body is connected with a pneumatic joint through a vacuum extraction pipeline, and the pneumatic joint is detachably connected with the end of the refrigerant pipe. Therefore, the vacuum pump body can be used to perform a vacuum pumping action on the refrigerant pipe, and the airtightness of the refrigerant pipe can be detected by means of vacuum degree detection, improving the detection accuracy. An unplugging air port is also opened outside the pneumatic joint, and the plug pulling mechanism is located directly above the material supporting flat plate. The plug pulling mechanism includes at least one pneumatic balancer, the power output end of the pneumatic balancer is connected with the outside of the pneumatic joint, and the air outlet end of the high-pressure air pump is also communicated with the unplugging air port. The high-pressure air pump can supply gas to the unplugging air port to make the pneumatic joint in a positive pressure state, achieving automatic separation from the end of the refrigerant pipe. The pneumatic balancer can assist in separating the pneumatic joint to ensure that the pneumatic joint will not fall off, effectively realizing the automatic blanking action for the refrigerant pipes that pass the seal detection. An automatic plug pulling action is also realized during the blanking process, improving the automation efficiency and being applicable to continuous detection actions. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1 It is a schematic diagram of the overall structure in the present invention.

[0020] Figure 2 It is a schematic diagram of the overall structure from another perspective in the present invention.

[0021] Figure 3 It is a schematic diagram of the pusher device structure in the present invention.

[0022] Figure 4 It is a schematic diagram of the pneumatic joint structure in the present invention.

[0023] As shown in the markings in the figure: 1, conveying plane; 2, sliding carrier plate; 3, detection component; 4, pusher device; 21, material supporting flat plate; 22, plug pulling mechanism; 41, bearing support plate; 42, moving plate member; 99, guiding column body; 100, guiding sleeve; 211, vacuum pump body; 212, high-pressure air pump; 213, pneumatic joint; 214, unplugging air port; 221, pneumatic balancer; 222, connecting hook member; 411, moving mechanism; 412, driving gear; 421, ejecting mechanism; 422, pusher flat plate; 423, guiding rack. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] Preferred embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the preferred embodiments of the present application are shown in the drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0025] The terms used in the present application are for the purpose of describing specific embodiments only and are not intended to limit the present application. The singular forms "a", "the", and "said" used in the present application and the appended claims are also intended to include the plural forms unless the context clearly dictates otherwise. It should also be understood that the term "and / or" used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0026] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0027] In the description of the present application, it should be understood that the orientation or positional relationships indicated by the terms "thickness", "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the limitations with "first" and "second" are only for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly including one or more of such features.

[0028] In the description of the present application, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0029] The technical solutions of the embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0030] Reference Figures 1 to 4 , an air-conditioning refrigerant pipe sealing detection device, comprising: A conveying plane 1, several sliding carrier plates 2, several groups of detection components 3 and a material pushing device 4; Several sliding carrier plates 2 are all located directly above the conveying plane 1. Several groups of detection components 3 are respectively arranged on several sliding carrier plates 2, and the material pushing device 4 is arranged on one side of the conveying plane 1. The material pushing device 4 includes a bearing support plate 41 and a moving plate member 42. A jacking mechanism 421 is arranged on the moving plate member 42. A material pushing flat plate 422 is arranged on the power output end of the jacking mechanism 421. One side of the material pushing flat plate 422 faces the conveying plane 1. The moving plate member 42 is slidably arranged on the bearing support plate 41. A moving mechanism 411 is arranged on the bearing support plate 41. The power output end of the moving mechanism 411 is in transmission connection with the moving plate member 42. The moving mechanism 411 is used to control the sliding distance of the moving plate member 42. The conveying plane 1 is used to sequentially convey several sliding carrier plates 2 to face the material pushing device 4 one by one. The detection component 3 is used to detect the vacuum degree value of the refrigerant pipe; Above each sliding carrier plate 2, a material supporting flat plate 21 and a plug pulling mechanism 22 are arranged. A vacuum pump body 211 and a high-pressure air pump 212 are arranged on the material supporting flat plate 21. The air extraction end of the vacuum pump body 211 is connected with a pressure joint 213 through a vacuum extraction pipeline. The pressure joint 213 is detachably connected with the end of the refrigerant pipe. A disconnection air port 214 is arranged outside the pressure joint 213. The plug pulling mechanism 22 is located directly above the material supporting flat plate 21. The plug pulling mechanism 22 includes at least one pneumatic balancer 221. The power output end of the pneumatic balancer 221 is connected with the outside of the pressure joint 213. The air outlet end of the high-pressure air pump 212 is communicated with the disconnection air port 214.

[0031] Specifically, the detection component 3 includes a vacuum gauge and a display screen. The detection end of the vacuum gauge is connected with the vacuum extraction pipeline. The vacuum gauge is used to obtain the vacuum degree value of the refrigerant pipe. The display screen is used to display the vacuum degree value of the refrigerant pipe.

[0032] Specifically, a guiding rack 423 is arranged on the surface of the moving plate member 42 facing the bearing support plate 41. The guiding rack 423 is horizontally distributed along the surface of the moving plate member 42. The power output end of the moving mechanism 411 is provided with a driving gear 412. The driving gear 412 meshes with the guiding rack 423.

[0033] Specifically, a guiding cylinder 99 is further arranged on the material pushing flat plate 422. A guiding sleeve 100 is also arranged on the surface of the moving plate member 42. The guiding cylinder 99 is slidably inserted into the inside of the guiding sleeve 100.

[0034] Specifically, a conveying guide rail is provided directly below the conveying plane 1. A plurality of sliding carrier plates 2 are all slidably arranged on the conveying guide rail. A guiding roller and a limiting grooved wheel are respectively rotatably arranged on one side of the sliding carrier plate 2 facing the conveying plane 1. The outside of the guiding roller is tangent to the top of the conveying guide rail, and the groove of the limiting grooved wheel abuts against the outside of the conveying guide rail.

[0035] Specifically, when there are two pneumatic connectors 213, one of the pneumatic connectors 213 is detachably connected to one end of the refrigerant pipe, and the other pneumatic connector 213 is detachably connected to the other end of the refrigerant pipe. There are two pneumatic balancers 221, and the two pneumatic balancers 221 are respectively connected to the two pneumatic connectors 213 one by one.

[0036] Specifically, connecting hooks 222 are arranged on the power output ends of the two pneumatic balancers 221, and limiting card slots are arranged on the outside of the two pneumatic connectors 213. The connecting hooks 222 are buckled on the outside of the limiting card slots.

[0037] Specifically, one end of the material supporting flat plate 21 away from the material pushing flat plate 422 is arranged to be downwardly inclined and is provided with a roller.

[0038] Specifically, the outside of the conveying plane 1 further includes a control mechanism. The detection assembly 3 is connected to the control mechanism, and the control mechanism is respectively connected to the material pushing device 4, the vacuum pump body 211, the high-pressure air pump 212 and the plug-pulling mechanism 22.

[0039] Embodiment 1. To achieve the automatic evacuation of the refrigerant pipe, detect the sealing performance through the degree of vacuum during the evacuation process, and achieve the automatic discharging of qualified refrigerant pipes to improve the automation efficiency. In this embodiment: a conveying plane 1, several sliding carrier plates 2, several groups of detection components 3 for detecting the vacuum degree value of the refrigerant pipe, and a pushing device 4; several sliding carrier plates 2 are all located directly above the conveying plane 1, several groups of detection components 3 are respectively arranged on several sliding carrier plates 2, the pushing device 4 is arranged on one side of the conveying plane 1, and the conveying plane 1 can be used to sequentially convey several sliding carrier plates 2 to face the pushing device 4 one by one. The pushing device 4 includes a carrying support plate 41 and a moving plate member 42. A jacking mechanism 421 is arranged on the moving plate member 42, and a pushing flat plate 422 is arranged on the power output end of the jacking mechanism 421. One side of the pushing flat plate 422 faces the conveying plane 1. The moving plate member 42 is slidably arranged on the carrying support plate 41, and a moving mechanism 411 is arranged on the carrying support plate 41. The power output end of the moving mechanism 411 is in transmission connection with the moving plate member 42, so that the moving mechanism 411 can be used to control the sliding distance of the moving plate member 42. A supporting flat plate 21 and a pipe pulling head mechanism 22 are arranged directly above each sliding carrier plate 2. A vacuum pump body 211 and a high-pressure air pump 212 are arranged on the supporting flat plate 21. The air extraction end of the vacuum pump body 211 is connected with a pneumatic joint 213 through a vacuum extraction pipeline, and the pneumatic joint 213 is detachably connected to the end of the refrigerant pipe. The pipe pulling head mechanism 22 is located directly above the supporting flat plate 21. The vacuum pump body 211 can be used to evacuate the refrigerant pipe on the supporting flat plate 21. During this process, the vacuum degree detection can be realized. When the vacuum degree value of the refrigerant pipe reaches the standard, that is, the product sealing performance is qualified, the evacuation action is stopped; When blanking is required, the moving mechanism 411 drives the moving plate member 42 to move, so that the moving plate member 42 can be aligned with the supporting flat plate 21 on the sliding carrier plate 2. The pushing device 4 can effectively push and drop the refrigerant pipe that has passed the detection on the supporting flat plate 21 automatically. The pipe pulling head mechanism 22 separates the pneumatic joint 213 and the end of the refrigerant pipe. The moving mechanism 411 of the pushing device 4 is started, so that the moving plate member 42 is aligned with the supporting flat plate 21, and the jacking mechanism 421 drives the pushing flat plate 422 to move towards the refrigerant pipe on the supporting flat plate 21. The pushing flat plate 422 pushes the refrigerant pipe with qualified sealing detection out of the supporting flat plate 21, making the supporting flat plate 21 in an empty state, so as to facilitate the subsequent placement of the refrigerant pipe to be sealed and detected on the empty supporting flat plate 21. Thus, the automatic blanking action after the vacuum sealing detection of the refrigerant pipe is completed, the working efficiency is improved, and it is applicable to the continuous production and detection process.

[0040] It should be noted that a guiding rack 423 is provided on the side of the moving plate member 42 facing the bearing pallet 41, and the guiding rack 423 is horizontally distributed along one side of the moving plate member 42. A driving gear 412 is provided at the power output end of the moving mechanism 411, and the driving gear 412 is engaged with the guiding rack 423. When the moving mechanism 411 on the bearing pallet 41 is started, the driving gear 412 can drive the guiding rack 423, thereby realizing the movement of the moving plate member 42 on the bearing pallet 41 until the power output end of the ejecting mechanism 421 can be aligned with the refrigerant pipe on the material supporting flat plate 21.

[0041] Regarding the above description, it should be particularly supplemented that in order to realize the reciprocating movement of the moving plate member 42, the moving mechanism 411 can adopt a servo motor. A servo motor is a rotary actuator or a linear actuator that allows precise control of the angular velocity or the linear position, speed, and acceleration. It includes a suitable motor connected to a sensor, thereby improving the position accuracy and ensuring that the power output end of the ejecting mechanism 421 can be aligned with the refrigerant pipe on the material supporting flat plate 21.

[0042] It should be noted that the detection component 3 includes a vacuum gauge and a display screen. The detection end of the vacuum gauge is connected to the vacuum pumping pipeline, and the vacuum gauge is used to obtain the vacuum degree value of the refrigerant pipe. The display screen can also be used to display the vacuum degree value of the refrigerant pipe, thereby facilitating the judgment of whether the vacuum degree value reaches a certain threshold to determine whether the airtightness of the refrigerant pipe is qualified.

[0043] It should also be noted that in order to ensure that the position of the material pushing flat plate 422 does not tilt or shift, so that the force is evenly distributed when the material pushing flat plate 422 pushes the refrigerant pipe, a guiding column body 99 is provided on the material pushing flat plate 422, and a guiding sleeve 100 is provided on one side of the moving plate member 42. The guiding column body 99 is slidably inserted into the inside of the guiding sleeve 100, and the guiding column body 99 and the guiding sleeve 100 can be used to limit the position of the material pushing flat plate 422 to prevent the position of the material pushing flat plate 422 from tilting or shifting.

[0044] In the above description, it should also be supplemented that an elastic member can be sleeved outside the guiding column body 99, and the elastic member can adopt a spring, and the elastic member can achieve a buffering effect.

[0045] Specifically, a conveying guide rail is provided directly below the conveying plane 1, and a plurality of sliding carrier plates 2 are slidably arranged on the conveying guide rail. A guiding roller and a limiting groove wheel are respectively rotatably arranged on one side of the sliding carrier plate 2 facing the conveying plane 1. The outer part of the guiding roller is tangent to the top of the conveying guide rail, and the groove of the limiting groove wheel is abutted against the outer part of the conveying guide rail. Thus, the sliding carrier plate 2 can slide along the top of the conveying guide rail through the guiding roller, and the limiting groove wheel plays a limiting role to prevent the sliding carrier plate 2 from jamming due to the deviation of the guiding roller from the track.

[0046] It should be further noted that one end of the material supporting flat plate 21 away from the material pushing flat plate 422 is arranged to be downwardly inclined and is provided with a rotating roller. When the ejecting mechanism 421 of the material pushing device 4 works, the ejecting mechanism 421 can drive the material pushing flat plate 422 to move towards the material supporting flat plate 21, so that the refrigerant pipe on the material supporting flat plate 21 moves and slides onto the rotating roller outside the material supporting flat plate 21, facilitating the material falling and conveying.

[0047] Embodiment 2. After the tightness detection of the refrigerant pipe is completed, since both ends of the refrigerant pipe are in a connected state with the pneumatic joint 213, before the blanking action is pushed, an automated removal action needs to be performed on the pneumatic joint 213. The pneumatic joint 213 of the existing vacuum detection equipment needs to be manually removed before blanking, which easily causes the removed pneumatic joints 213 to be in a scattered state. Once the pneumatic joint 213 falls, it is likely to cause the conveying components to jam and have a certain impact on the subsequent insertion efficiency. Therefore, to prevent the pneumatic joints 213 from scattering for subsequent insertion, in this embodiment, it should be noted that: a material supporting flat plate 21 and a head removal mechanism 22 are provided directly above each sliding carrier plate 2. A vacuum pump body 211 and a high-pressure air pump 212 are arranged on the material supporting flat plate 21. The air extraction end of the vacuum pump body 211 is connected with the pneumatic joint 213 through a vacuum pipeline. The pneumatic joint 213 is detachably connected to the end of the refrigerant pipe. A disconnection air port 214 is opened on the outside of the pneumatic joint 213. The head removal mechanism 22 is located directly above the material supporting flat plate 21. The head removal mechanism 22 includes a pneumatic balancer 221. The power output end of the pneumatic balancer 221 is connected to the outside of the pneumatic joint 213. The air outlet end of the high-pressure air pump 212 is communicated with the disconnection air port 214. During the vacuum detection process, the vacuum pump body 211 performs a vacuum pumping action on the refrigerant pipe through the pneumatic joint 213. At this time, the vacuum pumping action can make the refrigerant pipe in a negative pressure state, which means that the internal pressure of the refrigerant pipe is lower than the atmospheric pressure. After the detection is completed, the vacuum pump body 211 stops working, and the high-pressure air pump 212 inputs gas into the disconnection air port 214 to make the inside of the refrigerant pipe in a positive pressure state, that is, the inside of the refrigerant pipe is in a state higher than the atmospheric pressure. During this process, the pneumatic joint 213 will fall off and separate from the end of the refrigerant pipe due to the positive pressure, completing the automatic head removal action. The high-pressure air pump 212 can supply high-pressure gas to disconnect the connection between the pneumatic joint 213 and the refrigerant pipe, and cooperate with the pneumatic balancer 221 to pull the pneumatic joint 213 until the pneumatic joint 213 is completely separated from the end of the refrigerant pipe.

[0048] It should be noted that the pneumatic balancer 221 can support the pneumatic joint 213 to prevent the pneumatic joint 213 from falling directly, and can assist in the head removal action when the pneumatic balancer 221 works, improving the head removal work efficiency.

[0049] Combined with the descriptions in the first and second embodiments, it should be particularly supplemented that in order to control the start and stop of each working component after determining whether the refrigerant pipe is sealed qualified according to the vacuum degree value, a control mechanism may be included outside the conveying plane 1. The detection component 3 is connected to the control mechanism, and the control mechanism is respectively connected to the pushing device 4, the vacuum pump body 211, the high-pressure air pump 212, and the unplugging mechanism 22. The vacuum degree value of the refrigerant pipe can be obtained through the detection component 3 to determine whether the product is sealed qualified according to the vacuum degree value. If the product is sealed qualified, the control mechanism stops the operation of the vacuum pump body 211 and starts the operation of the pushing device 4 and the high-pressure air pump 212 to realize the automatic unplugging and blanking actions. When the high-pressure air pump 212 is operating, the high-pressure air pump 212 can supply gas to the disconnection air port 214.

[0050] Embodiment 3: To perform a vacuum pumping operation on the refrigerant pipe and detect the vacuum degree of the refrigerant pipe during the vacuum pumping process to determine whether the refrigerant pipe is sealed qualified according to the vacuum degree. In the existing vacuum sealing detection process of the refrigerant pipe, one end of the refrigerant pipe needs to be sealed with a seal, and a vacuum pumping operation is performed on the other end of the refrigerant pipe. During this process, it is difficult to ensure the firm connection between the seal and the end of the refrigerant pipe, which will affect the detection accuracy due to insufficient sealing, and the work efficiency is low when only performing a vacuum pumping operation on one end of the refrigerant pipe. To improve the vacuum pumping work efficiency and ensure the detection accuracy, in this embodiment: The air extraction end of the vacuum pump body 211 is connected with two air pressure connectors 213 through a vacuum pumping pipeline (not shown in the figure), and both air pressure connectors 213 are detachably connected to the end of the refrigerant pipe. Disconnection air ports 214 are respectively provided outside the two air pressure connectors 213. The unplugging mechanism 22 is located directly above the material supporting flat plate 21. The unplugging mechanism 22 includes two pneumatic balancers 221. The power output ends of the two pneumatic balancers 221 are respectively connected to the outside of the two air pressure connectors 213 one by one. The air outlet end of the high-pressure air pump 212 is communicated with the disconnection air port 214. During the vacuum sealing detection, one air pressure connector 213 is detachably connected to one end of the refrigerant pipe, and the other air pressure connector 213 is also detachably connected to the other end of the refrigerant pipe. Two pneumatic balancers 221 are provided, and the two pneumatic balancers 221 are respectively connected to the two air pressure connectors 213 one by one. Therefore, the two ends of the refrigerant pipe can be respectively connected through the two air pressure connectors 213 to perform a synchronous vacuum pumping operation on the two ends of the refrigerant pipe, thereby improving the work efficiency and further improving the sealing detection accuracy.

[0051] It should be noted that connecting hooks 222 are provided on the power output ends of the two pneumatic balancers 221, and limiting card slots are provided on the outsides of the two pneumatic connectors 213. The connecting hooks 222 are buckled outside the limiting card slots. When separating from the pneumatic connector 213, the pneumatic balancer 221 can play an auxiliary separation role for the pneumatic connector 213, ensuring that the pneumatic connector 213 can be completely separated from the end of the refrigerant pipe, preventing the pneumatic connector 213 from falling directly after separation, preventing damage to components caused by the collision of the pneumatic connector 213, and preventing the pneumatic connector 213 from scattering, facilitating the subsequent insertion of the end of the refrigerant pipe to be hermetically tested again.

[0052] Embodiment 4. Combining the descriptions in the above embodiments, in order to achieve automatic loading and unloading and blanking during continuous production to be applicable to continuous production and convey the products with qualified hermeticity detection to the next assembly station, an air-conditioning refrigerant pipe hermeticity detection line is provided in this embodiment, including the automatic blanking device in any of the above embodiments. The air-conditioning refrigerant pipe hermeticity detection line further includes a clamping and placing device and a blanking and transporting plane. A feeding bin is further provided outside the conveying plane 1. The clamping and placing device includes a clamping mechanism and a displacement mechanism. The clamping and placing device is located between the feeding bin and the conveying plane 1. The clamping mechanism is provided at the power output end of the displacement mechanism. The feeding bin can be used to supply the refrigerant pipes to be hermetically tested, and the clamping mechanism can be used to clamp the refrigerant pipes to be hermetically tested. The displacement mechanism is used to control the moving range of the clamping mechanism. During the clamping and loading process, the displacement mechanism drives the clamping mechanism to be above the feeding bin, and the clamping mechanism clamps the refrigerant pipes to be hermetically tested in the feeding bin. After being firmly clamped, the displacement mechanism drives the clamping mechanism clamping the refrigerant pipes to be hermetically tested to move and align with the empty supporting flat plate 21 again, so that the clamping mechanism places the clamped refrigerant pipes to be hermetically tested on the empty supporting flat plate 21. Therefore, the action of automatically placing the refrigerant pipes to be hermetically tested on the empty supporting flat plate 21 can be realized, facilitating the subsequent connection of the two ends of the refrigerant pipe to the two pneumatic connectors 213 respectively by the subsequent staff without manual handling and placement, improving work efficiency. The blanking and transporting plane is arranged on the other side of the conveying plane 1, and one end of the blanking and transporting plane corresponds to the pushing device 4. The blanking and transporting plane can be used to transport the refrigerant pipes with qualified hermeticity detection. Then, when the pushing device 4 pushes the refrigerant pipes with qualified hermeticity detection onto the blanking and transporting plane, the refrigerant pipes with qualified vacuum degree values are conveyed to the next process through the blanking and transporting plane. The above-mentioned qualified vacuum degree value means qualified hermeticity detection.

[0053] For the above description, further improvements are made. To be applicable to continuous production, the conveying plane 1 can be set as a ring structure. Therefore, after the refrigerant pipe passes the seal detection, the pusher device 4 can be used to push the material to the blanking transportation plane, so that the supporting flat plate 21 is in an unloaded state, and the unloaded supporting flat plate 21 is conveyed by the conveying plane 1 close to the feeding bin, so as to facilitate placing the refrigerant pipe to be seal-detected on the unloaded supporting flat plate 21 again for seal detection. Since the conveying plane 1 is arranged in a ring structure, the refrigerant pipe that has passed the seal detection can be aligned with the pusher device 4 again, and the above actions are repeated to complete the continuous production action.

[0054] Regarding the above description, it should be further supplemented that a recycling device can be added outside the above-mentioned conveying plane 1, and a recycling bin is provided at the corresponding position of the recycling device. The recycling device is set to have the same structure as the pusher device 4. In actual installation, the recycling device can be adjacent to the pusher device 4. When the pusher device 4 pushes the refrigerant pipe that has passed the seal detection to the blanking transportation plane, the supporting flat plate 21 loaded with the refrigerant pipe that has failed the seal detection is conveyed by the conveying plane 1 to align with the recycling device. After the unplugging mechanism 22 separates the pneumatic joint 213 and the end of the refrigerant pipe that has failed the seal detection, the recycling device pushes the refrigerant pipe that has failed the seal detection into the recycling bin, which is convenient for centralized recycling and processing of unqualified products. After recycling, the supporting flat plate 21 loaded with the refrigerant pipe that has failed the seal detection can be in an unloaded state, so as to facilitate placing the refrigerant pipe to be seal-detected on the unloaded supporting flat plate 21, which is applicable to continuous production.

[0055] Combined with the records in the above embodiments, it is particularly supplemented that the vacuum pump body 211 can adopt a rotary vane pump. Among them, the rotary vane pump is a two-stage structure, which is composed of a high-pressure stage and a low-pressure stage. Its suction port is connected to a vacuum container or vacuum equipment, and a large amount of gas in the container will be inhaled and discharged during operation. When the equipment obtains a vacuum, the exhaust valve plate of the high-pressure stage will be closed, and the gas inhaled by the high-pressure stage will be transferred to the second stage and inhaled and discharged through the second stage, so that the vacuum equipment can obtain a certain vacuum; according to the user's usage, a vacuum booster pump can be equipped and used as a fore pump. Since the pumping power of the booster pump is enhanced and the fore pump continuously pumps, the equipment can obtain a higher vacuum.

[0056] Combined with the records in the above embodiments, it should also be supplemented that during the assembly and production process of the refrigeration system, refrigerant pipes are mainly used as the conveying medium pipes between the air-conditioning heat exchanger and the air-conditioning compressor, as Figure 1 and Figure 2 shown, the refrigerant pipes placed on the supporting flat plate 21 are not individual refrigerant pipes, but air-conditioning heat exchangers assembled with refrigerant pipes.

[0057] The solution of the present application has been described in detail above with reference to the accompanying drawings. In the above embodiments, the descriptions of the respective embodiments have their own emphases. For parts not described in detail in a certain embodiment, reference may be made to the relevant descriptions of other embodiments. Those skilled in the art should also be aware that the actions and modules involved in the specification are not necessarily essential to the present application. In addition, it can be understood that the steps in the method embodiments of the present application can be adjusted, combined, and deleted according to actual needs, and the modules in the device embodiments of the present application can be combined, divided, and deleted according to actual needs.

[0058] The various embodiments of the present application have been described above. The above description is exemplary and not exhaustive, and is also not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art in the technical field without departing from the scope and spirit of the described embodiments. The choice of terms used herein is intended to best explain the principles of the embodiments, the practical application, or the improvement of the technology in the market, or to enable other ordinary skill in the art in the technical field to understand the embodiments disclosed herein.

Claims

1. An air conditioner refrigerant pipe sealing detection device, characterized in that Including: A conveying plane, several sliding carrier plates, several groups of detection components, and a material pushing device; Several of the sliding carrier plates are all located directly above the conveying plane. Several groups of the detection components are respectively arranged on several of the sliding carrier plates. And the material pushing device is arranged on one side of the conveying plane. The material pushing device includes a carrying support plate and a moving plate member. A jacking mechanism is arranged on the moving plate member. A material pushing flat plate is arranged on the power output end of the jacking mechanism. One side of the material pushing flat plate faces the conveying plane. The moving plate member is slidably arranged on the carrying support plate. A moving mechanism is arranged on the carrying support plate. The power output end of the moving mechanism is in transmission connection with the moving plate member. The moving mechanism is used to control the sliding distance of the moving plate member. The conveying plane is used to sequentially convey several of the sliding carrier plates to face the material pushing device one by one. The detection component is used to detect the vacuum degree value of the refrigerant pipe; Above each of the sliding carrier plates, a material supporting flat plate and a plug pulling mechanism are arranged. A vacuum pump body and a high-pressure air pump are arranged on the material supporting flat plate. And the air extraction end of the vacuum pump body is connected with a pneumatic joint through a vacuum extraction pipeline. The pneumatic joint is detachably connected to the end of the refrigerant pipe. And a disconnection air port is opened outside the pneumatic joint. The plug pulling mechanism is located directly above the material supporting flat plate. The plug pulling mechanism includes at least one pneumatic balancer. The power output end of the pneumatic balancer is connected to the outside of the pneumatic joint. The air outlet end of the high-pressure air pump is communicated with the disconnection air port.

2. The air-conditioning refrigerant pipe sealing detection device according to claim 1, wherein The detection component includes a vacuum gauge and a display screen. The detection end of the vacuum gauge is connected with the vacuum extraction pipeline. The vacuum gauge is used to obtain the vacuum degree value of the refrigerant pipe. The display screen is used to display the vacuum degree value of the refrigerant pipe.

3. The air-conditioning refrigerant pipe sealing detection device according to claim 1, characterized in that, On the side of the moving plate member facing the carrying support plate, a guiding rack is arranged. And the guiding rack is horizontally distributed along one side of the moving plate member. The power output end of the moving mechanism is provided with a driving gear. The driving gear meshes with the guiding rack.

4. The air-conditioning refrigerant pipe sealing detection device according to claim 1, characterized in that, A guiding cylinder is arranged on the material pushing flat plate. A guiding sleeve is also arranged on one side of the moving plate member. The guiding cylinder slidably penetrates inside the guiding sleeve.

5. The air conditioner refrigerant pipe sealing detection device according to claim 1, characterized in that, A conveying guide rail is arranged directly below the conveying plane. Several of the sliding carrier plates are all slidably arranged on the conveying guide rail. And on the side of each of the sliding carrier plates facing the conveying plane, a guiding roller and a limiting groove wheel are respectively rotatably arranged. The outside of the guiding roller is tangent to the top of the conveying guide rail. The groove of the limiting groove wheel abuts against the outside of the conveying guide rail.

6. The air conditioner refrigerant pipe sealing detection device according to claim 1, characterized in that, When there are two pneumatic joints, one of the pneumatic joints is detachably connected to one end of the refrigerant pipe, and the other pneumatic joint is detachably connected to the other end of the refrigerant pipe. And there are two pneumatic balancers. The two pneumatic balancers are respectively connected to the two pneumatic joints one by one.

7. An air conditioner refrigerant pipe sealing detection device according to claim 6, characterized in that, Connection hook members are arranged on the power output ends of the two pneumatic balancers. Limiting card slots are arranged on the outsides of the two pneumatic joints. The connection hook members are buckled outside the limiting card slots.

8. An air conditioner refrigerant pipe sealing detection device according to claim 1, characterized in that, One end of the material supporting flat plate away from the material pushing flat plate is arranged to be inclined downward and is provided with a rotating roller.

9. The air conditioner refrigerant pipe sealing detection device according to claim 1, characterized in that, The outside of the conveying plane further includes a control mechanism. The detection component is connected to the control mechanism, and the control mechanism is respectively connected to the material pushing device, the vacuum pump body, the high-pressure air pump and the plug pulling mechanism one by one.

10. An air conditioner refrigerant pipe detection line, including a sealing detection device as described in any one of claims 1 to 9, characterized in that, It further includes a clamping and placing device and a blanking and transporting plane; A feeding bin is further arranged outside the conveying plane. The clamping and placing device includes a clamping mechanism and a displacement mechanism. The clamping and placing device is located between the feeding bin and the conveying plane, and the clamping mechanism is arranged at the power output end of the displacement mechanism. The feeding bin is used for supplying refrigerant pipes to be sealed and detected, the clamping mechanism is used for clamping the refrigerant pipes to be sealed and detected, and the displacement mechanism is used for controlling the moving range of the clamping mechanism; The blanking and transporting plane is arranged on the other side of the conveying plane, and one end of the blanking and transporting plane corresponds to the material pushing device. The blanking and transporting plane is used for transporting refrigerant pipes with qualified vacuum degree values.

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