Air conditioner valve core assembling device

Abstract

The utility model relates to air conditioner valve core assembly technical field discloses an air conditioner valve core assembly device, including operation platform, be equipped with valve core conveying module and air conditioning valve conveying module on the operation platform for conveying valve core and air conditioning valve respectively, mounting frame is set up above the operation platform, be equipped with sliding module and extraction valve core module on the mounting frame for automatic extraction and assembly valve core, and hydraulic cylinder module is fixed on the operation platform through mounting seat, the hydraulic cylinder module includes feeding block and arc block, and the device realizes the full automation continuous operation of valve core feeding, valve body conveying, grabbing, alignment, press -fitting and fixing procedure, is controlled by PLC concentration, each module signal synchronization, single assembly cycle time can be controlled within 10 seconds, compares the traditional manual mode efficiency to improve more than 60%, simultaneously, one -key start -stop, cyclic operation and automatic discharge function significantly reduce the manpower dependence and operation interval, guarantee the high efficiency and stability of large -scale production.

Description

Technical Field

[0001] This utility model belongs to the field of air conditioner valve core assembly technology, specifically, it relates to an air conditioner valve core assembly device. Background Technology

[0002] Air conditioning heat pumps require valve cores to be installed inside the direct valve to prevent air leakage. Existing automated valve core assembly equipment cannot automatically complete all the processes of tightening and loosening the valve core, reducing the valve tip, and assembling the valve core. Manual intervention is still required for the assembly process, which results in long assembly times and low automation and production efficiency.

[0003] A prior art patent (CN204381814U) discloses a fully automatic assembly machine for automotive air conditioning valve cores, including a machine tool support, a machine tool panel at the top of the support, and a fixed beam in the middle. A motor is fixedly mounted on the lower right side of the support, and the motor is driven by a belt to a reducer and a distribution shaft fixed to the machine tool panel. The distribution shaft is fixedly mounted on a distribution shaft support, which is located on the lower part of the machine tool panel and connected to the reducer. A cam is fixedly mounted on the distribution shaft. A sprocket is fixedly mounted on the left end of the distribution shaft, and the sprocket is connected to a Geneva wheel mechanism via a chain. The Geneva wheel mechanism is fixedly mounted on the machine tool panel via support plates. The support plates are located at the left and right ends of the machine tool panel. Each support plate has a large sprocket, and a large chain covers the outer side between two large sprockets. A traveling clamp is fixedly mounted on the large chain. This practical design is reasonable, achieving automatic feeding, accurate positioning, good stability, improved production efficiency, and reduced waste generation. However, this solution still cannot automatically complete all the processes of tightening and loosening the valve core, reducing the valve opening, and assembling the valve core during the assembly process. It still requires manual intervention in the assembly steps, resulting in a long assembly time and low automation and production efficiency.

[0004] In view of this, this utility model is proposed. Utility Model Content

[0005] To solve the technical problems in the processing of air conditioning valves, the basic concept of the technical solution adopted by this utility model is as follows: An air conditioning valve core assembly device includes an operating table with a valve core conveying module and an air conditioning valve conveying module for conveying the valve core and air conditioning valve respectively; a mounting frame disposed above the operating table, with a sliding module and a valve core extraction module for automatically extracting and assembling the valve core; and a hydraulic cylinder module fixed to the operating table by a mounting base, the hydraulic cylinder module including a feeding block and an arc block for realizing the valve core narrowing and fastening operations.

[0006] In a preferred embodiment of this utility model, the valve core conveying module includes a first conveying module for orderly conveying the valve core to the assembly station; the air conditioning valve conveying module includes a second conveying module for positioning the air conditioning valve and conveying it to the assembly position.

[0007] In a preferred embodiment of this utility model, the mounting frame is also provided with a cylinder and a slide rail module. The cylinder drives the valve core extraction module to move along the slide rail module to achieve precise grasping and placement of the valve core.

[0008] In a preferred embodiment of this utility model, the operating table is provided with a discharge end and a discharge hole for automatically discharging assembled products and waste materials, thereby improving production efficiency.

[0009] In a preferred embodiment of this utility model, a telescopic motor is also included. The telescopic motor is connected to a guide frame and a limiting block and is used to control the tightening and loosening of the valve core. The limiting block is provided with a limiting end to ensure the stability of the valve core during assembly.

[0010] In a preferred embodiment of this utility model, the feeding block in the hydraulic cylinder module is elastically connected to the arc block by a spring, thereby achieving flexible narrowing of the valve core and avoiding damage to the parts.

[0011] In a preferred embodiment of this utility model, the sliding module is a linear guide rail structure, which works in conjunction with the extraction valve core module to achieve multi-degree-of-freedom movement, so as to adapt to the assembly of valve cores of different sizes.

[0012] Compared with the prior art, the present invention has the following advantages: 1. This air conditioning valve core assembly device realizes fully automated continuous operation of valve core feeding, valve body conveying, gripping, alignment, pressing and fixing processes; it is centrally controlled by PLC, and the signals of each module are synchronized. The single assembly cycle time can be controlled within 10 seconds, which improves efficiency by more than 60% compared with the traditional manual method; at the same time, the one-button start / stop, cycle operation and automatic material discharge functions significantly reduce the dependence on manpower and operation intervals, ensuring the high efficiency and stability of large-scale production.

[0013] 2. This air conditioning valve core assembly device achieves precise alignment and press-fitting of the valve core and the air conditioning valve through multiple measures such as servo motor (repeat positioning error <0.1mm), encoder synchronization, photoelectric sensing, and limiting end angle fine adjustment; the hydraulic system pressure is adjustable, and with the spring buffer and contour matching arc block, it effectively prevents damage to parts or overpressure during assembly; in addition, the anti-damage design of the pneumatic gripper, the shock-absorbing pad, and the automatic cleaning and unloading structure together ensure the consistency of the assembly process and the product yield, and reduce the risk of human error.

[0014] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0015] In the attached diagram: Figure 1 This is a three-dimensional schematic diagram of the present invention; Figure 2 This is a schematic diagram of the structure on the operating table of this utility model; Figure 3 This is a schematic diagram of the mounting frame structure of this utility model; Figure 4 This is a schematic diagram of the hydraulic cylinder module of this utility model; Figure 5 This is a schematic diagram of the telescopic motor structure of this utility model.

[0016] In the diagram: 1. Control panel; 11. Discharge end; 12. Discharge hole; 2. Valve core conveying module; 21. First conveying module; 3. Air conditioning valve conveying module; 31. Second conveying module; 4. Mounting frame; 41. Sliding module; 42. Cylinder; 43. Slide rail module; 44. Valve core extraction module; 5. Telescopic motor; 51. Guide frame; 52. Limiting block; 53. Limiting end; 6. Hydraulic cylinder; 61. Mounting base; 62. Feeding block; 63. Arc block; 64. Spring. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model.

[0018] Please see Figure 1-5 An air conditioning valve core assembly device includes an operating table 1, a valve core conveying module 2, an air conditioning valve conveying module 3, a mounting bracket 4, a telescopic motor 5, and a hydraulic cylinder 6. The following detailed description of each part, in conjunction with the accompanying drawings, includes its specific structure, working mechanism, and role in the assembly process. The description follows the device's working logic, from basic support to core action modules.

[0019] The control panel 1, serving as the base of the device, is constructed from high-strength steel plates with a rust-proof surface treatment to ensure long-term stability. Control panel 1 is equipped with a discharge end 11 and discharge holes 12. The discharge end 11, located at the edge of the control panel, is connected to an external material collection device via a pipe to collect waste generated during assembly. The discharge holes 12 are distributed across the working surface of the control panel, with a diameter matching the valve core residue, allowing for automatic discharge of excess material after pressing, keeping the work area clean. Vibration damping pads are installed at the bottom of the control panel to reduce vibration interference during equipment operation.

[0020] The valve core conveying module 2 is responsible for the automatic feeding of valve cores and includes a first conveying module 21. The first conveying module 21 adopts a combination structure of a vibratory feeder and a guide rail. The vibratory feeder, driven by electromagnetic force, arranges the disordered valve cores in an orderly manner and conveys them to the assembly station via the guide rail. A photoelectric sensor is installed at the end of the guide rail to detect the valve core position in real time, ensuring synchronous feeding. The entire module is made of aluminum alloy, which is lightweight and wear-resistant, suitable for high-speed continuous operation.

[0021] The air conditioning valve delivery module 3 is used for the precise delivery of air conditioning valves and includes a second delivery module 31. The second delivery module 31 is a belt conveyor with customized clamps on the belt surface to hold air conditioning valves of different sizes. The delivery speed is synchronized with the valve core delivery module 2 and controlled by an encoder to ensure precise alignment of the air conditioning valve and valve core at the assembly point. The module is bolted to the control panel 1 for easy position adjustment to accommodate various valve body sizes.

[0022] The mounting bracket, vertically fixed to the center of the operating platform 1, is welded from square steel pipes, ensuring a stable structure. It integrates a sliding module 41, a cylinder 42, a slide rail module 43, and an extraction valve core module 44. The sliding module 41 uses a linear guide rail, driven by the cylinder 42, to achieve Z-axis lifting. The slide rail module 43 is a cross-shaped slide structure, controlling XY-plane movement, enabling precise positioning of the extraction valve core module 44 in three-dimensional space. The extraction valve core module 44 uses pneumatic grippers with a rubber-coated surface to prevent damage to the valve core surface. The cylinder 42 is a double-acting type with adjustable stroke, ensuring moderate gripping force.

[0023] The telescopic motor is mounted on the side of the mounting bracket 4, and its movement trajectory is constrained by the guide frame 51 and the limiting block 52. The guide frame 51 has a rectangular structure and internal ball bearings to reduce friction; the limiting block 52 is linked to the limiting end 53, which has a tapered design and can finely adjust the valve core angle to prevent assembly tilting. The telescopic motor 5 itself is a servo motor with a built-in high-precision encoder, supporting programmable control of stroke and speed, and a repeatability error of less than 0.1mm, making it suitable for high-precision press-fitting requirements.

[0024] The hydraulic cylinder module 6 is fixed to the operating table 1 via a mounting base 61 and includes a feeding block 62, an arc block 63, and a spring 64. The mounting base 61 is an adjustable bracket, allowing the hydraulic cylinder to be installed at multiple angles. The feeding block 62 is directly connected to the hydraulic rod, and its surface is heat-treated to enhance wear resistance. The arc block 63 has a semi-circular structure that matches the valve core contour, ensuring uniform force during pressing. The spring 64 is placed inside the feeding block 62 to provide buffering force and prevent overpressure damage to the valve core. The hydraulic cylinder 6 is driven by an electric pump with adjustable pressure ranging from 0-10 MPa to adapt to different necking force requirements.

[0025] The control system and integration are as follows: The entire device is centrally controlled by a PLC (Programmable Logic Controller), a control method that offers high reliability and flexibility. During operation, the PLC connects to sensors and actuators in each module via I / O modules, enabling monitoring and control of the operational status of each part of the device. Specifically, the synchronization signals generated by the valve core delivery module 2 and the air conditioning valve delivery module 3 are received and processed by the PLC to ensure coordinated operation between these two modules, preventing workflow errors or conflicts. The movement sequence of the mounting frame 4 is achieved through a pre-programmed sequence in the PLC. This carefully designed sequence precisely plans the mounting frame 4's movement trajectory, speed, and stopping position. For the telescopic motor 5 and the hydraulic cylinder 6, their timing is precisely controlled by a timer, which can be accurately set. The system sets the start time, duration, and end time for each action to ensure that both components operate according to predetermined requirements. Furthermore, the control system is equipped with a Human-Machine Interface (HMI), providing operators with a convenient way to operate the device. Through the HMI, operators can easily set various parameters, such as adjusting the working speed and force of each module. It also has a fault diagnosis function, which can promptly display the type and location of the fault when it occurs, allowing operators to quickly repair and handle it. In addition, the system features a convenient one-button start / stop function; operators can easily control the operation or shutdown of the entire device by simply pressing the start or stop button. Moreover, it supports cyclic operation, enabling the device to repeatedly execute work tasks according to a predetermined program without human intervention, greatly improving work efficiency and reducing labor costs.

[0026] Working Principle: The initial stage of the assembly process is the initialization operation: the on-site operator starts the entire device through the human-machine interface (HMI), and then the first conveying module 21 in the valve core conveying module 2 starts to operate, smoothly conveying the valve core stored in the hopper to the assembly station on the operating table 1; at the same time, the second conveying module 31 in the air conditioning valve conveying module 3 also operates synchronously, accurately delivering the air conditioning valve to the preset docking point position to ensure the smooth progress of subsequent assembly work; next, the valve core extraction module 44 on the mounting frame 4 slowly descends under the push of the cylinder 42, and is positioned directly above the valve core by the precise movement of the slide rail module 43; at this time, the pneumatic gripper quickly grabs the valve core, and then rises and resets under the drive of the cylinder 42, completing this step; immediately afterward, the telescopic motor 5 is started, and the guide frame 51 driven by it begins to guide the valve core to the target position; during this process, the limiting end 53 plays a key role, correcting the angle of the valve core, thereby ensuring that the valve core can be aligned with the hole position of the air conditioning valve. Precise alignment is achieved to avoid assembly failure due to angular deviation. Once alignment is complete, the hydraulic cylinder 6 actuates, and the feeding block 62 inside slowly and steadily pushes the valve core under the buffering effect of the spring 64, pressing it into the designated position of the air conditioning valve. Subsequently, the arc block 63 performs a narrowing process to further fix the valve core, ensuring the firmness and reliability of the assembly. After pressing, excess residual material is automatically discharged through the discharge hole 12 on the operating table 1, ensuring the cleanliness of the work area and the normal operation of the equipment. At the same time, each module resets sequentially according to the predetermined program, ready to enter the next cycle. The entire process is monitored by a programmable logic controller (PLC), which records the number of executions for each cycle for subsequent data analysis and equipment maintenance. It is worth mentioning that this fully automated assembly process requires no manual intervention, and the time of a single cycle can be strictly controlled within 10 seconds. Compared with the traditional manual assembly method, the efficiency is increased by more than 60%, significantly improving production efficiency and reducing the error risk that may be caused by human operation.

[0027] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. An air conditioning valve core assembly device, characterized in that, include: The operating table (1) is provided with a valve core conveying module (2) and an air conditioning valve conveying module (3) for conveying valve cores and air conditioning valves respectively; the mounting frame (4) is set above the operating table (1), and the mounting frame (4) is provided with a sliding module (41) and a valve core extraction module (44) for automatically extracting and assembling valve cores; and the hydraulic cylinder module (6) is fixed on the operating table (1) by a mounting base (61), and the hydraulic cylinder module (6) includes a feeding block (62) and an arc block (63) for realizing the valve core narrowing and fastening operation.

2. The air conditioner valve trim assembly of claim 1, wherein, The valve core conveying module (2) includes a first conveying module (21) for conveying the valve core to the assembly station in an orderly manner; the air conditioning valve conveying module (3) includes a second conveying module (31) for positioning the air conditioning valve and conveying it to the assembly position.

3. The air conditioner valve trim assembly of claim 1, wherein, The mounting bracket (4) is also equipped with a cylinder (42) and a slide rail module (43). The cylinder (42) drives the valve core extraction module (44) to move along the slide rail module (43) to achieve precise grasping and placement of the valve core.

4. The air conditioner valve trim assembly of claim 1, wherein, The operating table (1) is equipped with a discharge end (11) and a discharge hole (12) for automatically discharging assembled products and waste materials, thereby improving production efficiency.

5. The air conditioning valve core assembly device according to claim 1, characterized in that, It also includes a telescopic motor (5), which is connected to a guide frame (51) and a limiting block (52) to control the tightening and loosening of the valve core; the limiting block (52) is provided with a limiting end (53) to ensure the stability of the valve core during assembly.

6. The air conditioning valve core assembly device according to claim 1, characterized in that, The feeding block (62) in the hydraulic cylinder module (6) is elastically connected to the arc block (63) through the spring (64) to achieve flexible narrowing of the valve core and avoid damage to the parts.

7. The air conditioner valve trim assembly of claim 1, wherein, The sliding module (41) is a linear guide rail structure, which works in conjunction with the extraction valve core module (44) to achieve multi-degree-of-freedom motion, so as to adapt to the assembly of valve cores of different sizes.

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