Automatic assembling production line for electromagnets

Abstract

The invention relates to the technical field of automatic assembly, in particular to an electromagnet automatic assembly production line which comprises a conveying line, a conveying device, a conveying device and a control device. The conveying line is used for conveying semi-finished products or finished products of electromagnets in assembly; the automatic feeding device is arranged at the starting end of the conveying line and used for loading the electromagnet shell on the conveying line; the automatic discharging device is arranged at the tail end of the conveying line and used for recycling assembled electromagnet finished products from the conveying line; a marking device is further arranged at the starting end of the conveying line and used for recognizing the type of an electromagnet to be assembled and marking an electromagnet shell. And the various electromagnet assembling devices are sequentially arranged between the starting end of the conveying line and the tail end of the conveying line along the conveying line and used for sequentially executing assembling procedures matched with the models of the electromagnets according to the models of the electromagnets. According to the scheme, stable and efficient electromagnet automatic assembly is achieved, the product quality is improved, and the labor intensity and the assembly cost are reduced.

Description

Technical Field

[0001] The invention relates to the technical field of automatic assembly, and in particular to an automatic assembly production line for electromagnets. Background Art

[0002] In the process of industrial automation, electromagnets are used as key actuators in various control devices. Taking the solenoid pilot valve as an example, it relies on the electromagnetic coil to generate a magnetic field, attracts or releases the iron core, and accurately controls the valve on and off, which plays a key role in the fluid control system.

[0003] The assembly of electromagnets involves many delicate processes. From the assembly of the guide cylinder assembly to provide installation guidance, to the assembly of the gasket and the ejector rod to ensure the tight connection of the components, to the assembly of the coil and the yoke assembly to affect the magnetic field performance, as well as the glue injection to enhance stability, the adjustment of the ejector rod length, the assembly of the end cover protection, the pressing plate fixation, etc., each link is crucial.

[0004] However, in the coal mining machinery industry, the current electromagnet manufacturing mainly relies on manual labor combined with special equipment. The existing assembly process is mostly completed manually with the help of semi-automatic equipment or tooling, which has obvious disadvantages. Manual operation leads to unstable assembly quality, high labor intensity for workers, and labor and rework costs push up assembly costs. In addition, the degree of informatization is low, making it difficult to achieve efficient production management and quality traceability. Summary of the invention

[0005] The present invention provides an electromagnet automatic assembly production line, which is used to solve the defects of unstable electromagnet assembly quality and high labor intensity in the prior art, realize stable and efficient electromagnet automatic assembly, improve product quality, and reduce labor intensity and assembly cost.

[0006] The invention provides an electromagnet automatic assembly production line, comprising: a conveyor line, used for conveying semi-finished products or finished products of electromagnets being assembled; an automatic loading device, arranged at the starting end of the conveyor line, used for loading electromagnet shells onto the conveyor line; an automatic unloading device, arranged at the tail end of the conveyor line, used for recovering the assembled electromagnet finished products from the conveyor line; a marking device is also arranged at the starting end of the conveyor line, used for identifying the model of the electromagnet to be assembled and marking the electromagnet shell; a plurality of electromagnet assembly devices are arranged in sequence along the conveyor line between the starting end of the conveyor line and the tail end of the conveyor line, used for sequentially executing assembly procedures corresponding to the model of the electromagnet according to the model of the electromagnet.

[0007] According to one embodiment of the present invention, the conveyor line extends linearly; or, the starting end of the conveyor line and the tail end of the conveyor line are connected to form a quadrilateral or other polygonal closed conveyor line, wherein the automatic loading device and the automatic unloading device are arranged side by side.

[0008] According to one embodiment of the present invention, a first performance testing device is included; the first performance testing device is arranged at the tail end of the conveyor line, and is used to perform a withstand voltage and performance test process on the assembled electromagnet.

[0009] According to one embodiment of the present invention, at least one second performance testing device is included; the second performance testing device is arranged between any adjacent electromagnet assembly devices to perform a semi-finished product testing process on the semi-finished electromagnet.

[0010] According to one embodiment of the present invention, the multiple electromagnet assembly devices specifically include: a guide cylinder assembly device, used to assemble the guide cylinder assembly to the electromagnet housing; an armature and push rod assembly device, used to complete the assembly of the armature and the push rod; a yoke assembly device, used to assemble the yoke assembly into the electromagnet housing; an automatic glue injection device, used to perform glue injection and sealing treatment on the electromagnet; a leather cap assembly assembly device, used to install the leather cap; a pressing plate assembly device, used to assemble the pressing plate to the corresponding position of the electromagnet; a push rod adjustment device, used to online adjust the extension length of the push rod of the electromagnet.

[0011] According to one embodiment of the present invention, the guide cylinder assembly device is equipped with an oil-containing bearing feeding mechanism; the oil-containing bearing feeding mechanism adopts a single-chamfered screening vibration plate system to realize the sorting and separation of the oil-containing bearings, and conveys the sorted oil-containing bearings to the pressing station; the guide cylinder assembly device also includes a first pressing mechanism for pressing the oil-containing guide bearing into the guide cylinder, a second pressing mechanism for pressing the positioning pin into the side hole of the guide cylinder, and a third pressing mechanism for simultaneously pressing the two sets of guide cylinder assemblies into the main hole of the electromagnet housing through a floating positioning mechanism; the guide cylinder assembly device is provided with a pin pressing detection mechanism based on the principle of a go / no-go gauge, which is used to online check whether the guide cylinder pin is pressed and qualified.

[0012] According to one embodiment of the present invention, the armature and push rod assembly device is equipped with a gasket feeding mechanism and a push rod feeding mechanism; the gasket feeding mechanism uses the principle of flexible vibration to separate the gaskets, and transports the gaskets to the assembly position by vacuum suction; the push rod feeding mechanism uses a standard tray machine in conjunction with a multi-axis robot to grab the push rod and screw it into the corresponding position; the armature and push rod assembly device also includes an assembly actuator for assembling the gaskets and push rods, and tightening the armature parts into place.

[0013] According to one embodiment of the present invention, the yoke assembly device is equipped with a small hole gasket and a small spring feeding mechanism; the small hole gasket and small spring feeding mechanism adopts the principle of flexible vibration to separate the small hole gasket and the small spring respectively, and transports the small hole gasket by vacuum adsorption and transports the small spring by grasping; the yoke assembly device also includes an assembly mechanism for assembling the yoke into components, a placement mechanism for placing the small hole gasket and the small spring into the electromagnet housing, and a pressing mechanism for pressing the yoke into the hole of the electromagnet housing.

[0014] According to one embodiment of the present invention, the automatic glue injection device includes a two-component epoxy glue automatic glue injection machine, and a multi-axis robot for grabbing the shell and positioning it at the glue injection point; after completing the glue injection, the multi-axis robot can repeatedly tilt the electromagnet shell at a certain angle and stop to ensure the uniformity of the glue injection space and make the glue flow level.

[0015] According to one embodiment of the present invention, the leather cap assembly device is equipped with a leather cap feeding mechanism, which assembles the leather cap, inner cover and seal into an assembly; the leather cap assembly device also includes a positioning assembly mechanism that uses dual visual recognition to identify the direction of the positioning groove to orient the inner cover and the push rod, and a pressing auxiliary mechanism that performs high-pressure blowing while the end of the multi-axis robot moves up and down multiple times when pressing the leather cap assembly into the end cover groove of the electromagnet to prevent the leather cap from being brought out by the suction nozzle, thereby ensuring reliable assembly of the leather cap.

[0016] According to one embodiment of the present invention, the push rod adjustment device includes a power supply mechanism for energizing the coil of the electromagnet, a servo system for rotating the push rod, and a sensor for measuring the relative distance between the push rod and the end face of the shell; the push rod adjustment device realizes feedback and real-time adjustment of the extension length of the push rod through PID control.

[0017] The electromagnet automatic assembly production line provided by the present invention effectively solves the problems of unstable electromagnet assembly quality and high labor intensity in the prior art by setting a conveyor line, an automatic feeding device, an automatic unloading device, a marking device and a variety of electromagnet assembly devices. Among them, the conveyor line can continuously and stably convey the electromagnet semi-finished products or finished products in assembly, ensuring that the entire assembly process is carried out in an orderly manner. The automatic feeding device automatically loads the electromagnet shell at the starting end of the conveyor line, and the automatic unloading device recovers the assembled finished products at the tail end, reducing the manual handling link and greatly reducing the labor intensity of the workers. The marking device can identify the model of the electromagnet to be assembled and mark it, so that the subsequent assembly process can be accurately adapted according to the model. A variety of electromagnet assembly devices are arranged in sequence along the conveyor line, and the corresponding assembly processes are performed in sequence according to the marked models, avoiding assembly errors caused by human factors in manual operation, and ensuring the stability of assembly quality. Through the automated assembly method, the dependence on manual labor is reduced, the assembly efficiency is improved, and the assembly cost is reduced, and stable and efficient electromagnet automatic assembly is achieved, which improves product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the top structure of the electromagnet automatic assembly production line provided by the present invention.

[0020] Figure 2 It is a structural schematic diagram of a first performance testing device of an electromagnet automatic assembly production line provided by the present invention.

[0021] Figure 3 It is a structural schematic diagram of the configuration of the guide cylinder assembly device of the electromagnet automatic assembly production line provided by the present invention.

[0022] Figure 4 The present invention is a schematic structural diagram of an armature and ejector assembly device for an automatic electromagnet assembly production line.

[0023] Figure 5 It is a structural schematic diagram of a yoke assembly device of an electromagnet automatic assembly production line provided by the present invention.

[0024] Figure 6 It is a structural schematic diagram of an automatic glue injection device of an automatic electromagnet assembly production line provided by the present invention.

[0025] Figure 7It is a structural schematic diagram of a leather cap component assembly device of an electromagnet automatic assembly production line provided by the present invention.

[0026] Figure 8 The present invention is a schematic structural diagram of a push rod adjusting device for an automatic electromagnet assembly production line.

[0027] Fig. 9 The present invention provides an electromagnet automatic assembly production line for an electromagnet assembly process flow diagram.

[0028] Reference numerals: 100. Conveyor line; 101. Automatic loading device; 102. Automatic unloading device; 103. Marking device; 104. First performance testing device; 105. Second performance testing device; 110. Guide cylinder assembly device; 120. Armature and ejector rod assembly device; 130. Yoke assembly device; 140. Automatic glue injection device; 150. Leather cap assembly device; 160. Ejector rod adjustment device. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limitations on the embodiments of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. It should also be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "set", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0031] The electromagnet automatic assembly production line provided by the present invention achieves online assembly of electromagnets of different forms in the whole process, covering online assembly, online debugging and inspection, etc. At the same time, the production line includes a series of processes such as automatic feeding of electromagnet-related parts, automatic assembly of parts, assembly of finished products, automatic adjustment of ejector length, and online inspection, and can realize a one-key production change function.

[0032] Combine the following Figures 1 to 9 The specific implementation of the electromagnet automatic assembly production line of the present invention is described.

[0033] like Figure 1 As shown, the present invention provides an automatic assembly production line for electromagnets, comprising: a conveyor line 100, for conveying semi-finished or finished electromagnets being assembled; an automatic loading device 101, arranged at the starting end of the conveyor line 100, for loading electromagnet shells onto the conveyor line 100; an automatic unloading device 102, arranged at the tail end of the conveyor line 100, for recovering assembled electromagnet products from the conveyor line 100; a marking device 103 is also arranged at the starting end of the conveyor line 100, for identifying the model of the electromagnet to be assembled and marking the electromagnet shell; a plurality of electromagnet assembly devices are arranged along the conveyor line 100, in sequence between the starting end of the conveyor line 100 and the tail end of the conveyor line 100, for sequentially executing assembly processes corresponding to the model of the electromagnet according to the model of the electromagnet.

[0034] Specifically, the conveyor line 100, as the basic support of the entire production line, can be a chain conveyor line 100, a belt conveyor line 100, etc., which operates continuously and stably, providing transportation guarantee for the entire process from the initial assembly of the electromagnet to the final product. The automatic loading device 101 is usually equipped with equipment such as a mechanical gripper or a conveyor belt, which can accurately and efficiently place the electromagnet shell on the conveyor line 100. The automatic unloading device 102 can identify the assembled electromagnet product through a sensor, and then use a tool such as a mechanical arm to remove it from the conveyor line 100 and recycle it. The marking device 103 can use a barcode scanner, a visual recognition system, etc., first identify the model of the electromagnet to be assembled, and then mark the electromagnet shell by laser marking or inkjet marking. A variety of electromagnet assembly devices have different structures and functions according to different assembly process requirements. For example, a guide cylinder assembly device, a coil assembly device, etc., will perform corresponding assembly actions in a targeted manner according to the model determined by the marking device 103.

[0035] In use, when the production line is started, the automatic loading device 101 starts working and places the electromagnet shell on the conveyor line 100. The conveyor line 100 drives the shell to move forward and arrives at the marking device 103. The marking device 103 quickly identifies the electromagnet model corresponding to the shell and completes the marking. Subsequently, the conveyor line 100 continues to transport the shell to each electromagnet assembly device. Each assembly device completes a series of processes corresponding to the model, such as guide cylinder assembly, gasket connection, push rod assembly, coil assembly, etc., in accordance with the preset program and according to the model marked on the shell, and finally forms a complete electromagnet finished product. When the finished product is transported to the tail end of the conveyor line 100, the automatic unloading device 102 recycles it to complete the entire assembly process. This method realizes automated and standardized production from raw materials to finished products, reduces manual intervention, and improves production efficiency and product quality.

[0036] Furthermore, the conveyor line 100 of the above-mentioned electromagnet automatic assembly production line can adopt a modular design, which is convenient for flexible splicing and adjustment according to different production sites and production capacity requirements. For example, when it is necessary to increase production capacity, the length of the conveyor line 100 can be extended by adding conveyor line 100 modules to add more assembly stations. The automatic feeding device 101 can be provided with multiple feeding channels, corresponding to electromagnet shells of different specifications, to meet diversified production needs. The automatic unloading device 102 can be equipped with an intelligent classification system to classify and store the finished products according to the model, performance and other parameters of the electromagnet. The visual recognition system of the marking device 103 can use a high-definition camera and advanced image processing algorithms to ensure the accuracy of electromagnet model recognition.

[0037] According to an electromagnet automatic assembly production line of the present invention, the conveyor line 100 extends linearly. When the conveyor line 100 extends linearly, a one-way and orderly conveying path is provided for the assembly process of the electromagnet. Alternatively, the starting end of the conveyor line 100 is connected to the tail end of the conveyor line 100 to enclose a quadrilateral or other polygonal closed conveyor line 100, wherein the automatic loading device 101 and the automatic unloading device 102 are arranged side by side. When the starting end and the tail end of the conveyor line 100 are connected to enclose a quadrilateral or other polygonal closed conveyor line 100, the utilization rate of the space is improved. The automatic loading device 101 and the automatic unloading device 102 are arranged side by side at a certain place of this closed circuit, so that the loading and unloading operations are more compact and efficient. In the closed conveyor line 100, the semi-finished or finished product of the electromagnet circulates on the conveyor line 100, and a plurality of electromagnets can be operated at different assembly stages at the same time. At the same time, the 100-line closed conveyor line also facilitates the monitoring and management of the entire production process, reducing the floor space and energy loss during material transportation.

[0038] According to an automatic assembly production line of an electromagnet of the present invention, the first performance inspection device 104 is provided at the tail end of the conveyor line 100, and is used to perform a withstand voltage and performance test process on the assembled electromagnet. Specifically, the first performance inspection device 104 has professional detection capabilities for the withstand voltage and performance test process. In terms of withstand voltage test, various high-voltage environments that the electromagnet may encounter during actual use are simulated, and its insulation performance and ability to withstand high voltage are detected by applying a voltage of a specific intensity and duration to the electromagnet. In terms of performance testing, the first performance inspection device 104 detects various key performance indicators of the electromagnet. It may include detecting the electromagnetic suction of the electromagnet, measuring the suction force generated by the electromagnet in the power-on state through an accurate sensor, and comparing it with the standard suction force value of the electromagnet of this model. At the same time, the response time of the electromagnet can also be tested, that is, the time required from power-on to reaching the rated suction force, and the time when the suction force disappears after power-off, to ensure that it can respond to the control signal quickly and accurately. In addition, the heating condition of the electromagnet can also be monitored. The temperature change of the electromagnet during operation can be recorded in real time through the temperature sensor to determine whether its heat dissipation performance is good, so as to avoid performance degradation or damage due to overheating.

[0039] like Figure 2 As shown, the automatic assembly production line of the electromagnet of the present invention can realize the online detection of insulation withstand voltage and product performance. Preferably, the energized plug will automatically dock during detection, and the electromagnet will be tested after power is turned on. The data obtained from the detection will be uploaded to the information system of the production line, and the test results will be bound to the specific products to achieve the traceability of the assembly data. Among them, the first performance inspection device 104 can be equipped with a data processing and storage system, which can automatically record the test data and generate a detailed test report after completing the withstand voltage and performance test of each electromagnet. These data can be used for subsequent quality tracing and analysis, which helps manufacturers to promptly discover possible problems in the production process, thereby optimizing the production process and improving product quality and production efficiency.

[0040] Furthermore, an electromagnet automatic assembly production line according to the present invention includes at least one second performance inspection device 105; the second performance inspection device 105 is arranged between any adjacent electromagnet assembly devices, and is used to perform a semi-finished product testing process on the semi-finished electromagnet. The second performance inspection device 105 plays a key role in the electromagnet automatic assembly production line. Since it is arranged between any adjacent electromagnet assembly devices, the semi-finished product can be inspected in time at multiple key nodes in the electromagnet assembly process, ensuring that the quality of each step of the assembly process meets the standards, and avoiding the accumulation of problems in a certain link to the subsequent processes, resulting in greater quality risks and cost waste.

[0041] Specifically, the second performance test device 105 at different positions will perform targeted testing procedures on the semi-finished electromagnet according to the characteristics of the assembly stage in which it is located. For example, the second performance test device 105 set after the guide cylinder assembly is completed will mainly detect whether the installation position of the guide cylinder is accurate, whether the matching clearance with other components meets the requirements, etc. Through high-precision sensors and measuring equipment, the geometric parameters such as the concentricity and verticality of the guide cylinder are measured to determine whether it meets the design standards. If it is found that the guide cylinder installation deviation is too large, the device will immediately send out an alarm signal to prompt the operator to adjust or correct it to avoid the subsequent assembly process from being unable to proceed normally. The second performance test device 105 set after the coil assembly is completed focuses on testing the performance of the coil. The resistance value of the detection coil is within the specified range to determine whether the winding of the coil is correct, whether there are problems such as short circuit or open circuit. At the same time, the magnetic field strength and distribution generated by the coil in the energized state can also be tested to ensure that it meets the performance requirements of the electromagnet. If it is detected that the coil performance does not meet the standards, the device will mark the semi-finished product as defective and upload the relevant data to the production line's information system for subsequent traceability and analysis.

[0042] According to an automatic assembly production line of electromagnets of the present invention, a plurality of electromagnet assembly devices specifically include: a guide cylinder assembly device 110, used to assemble the guide cylinder assembly to the electromagnet housing; an armature and push rod assembly device 120, used to complete the assembly of the armature and the push rod; a yoke assembly device 130, used to assemble the yoke assembly into the electromagnet housing; an automatic glue injection device 140, used to perform glue injection and sealing treatment on the electromagnet; a leather cap assembly device 150, used to install the leather cap; a pressing sheet assembly device, used to assemble the pressing sheet to the corresponding position of the electromagnet; and a push rod adjustment device 160, used to adjust the extension length of the push rod of the electromagnet online. Each electromagnet assembly device performs its own duties in the production line and jointly completes the efficient assembly of the electromagnet.

[0043] like Figure 3 As shown, according to an electromagnet automatic assembly production line of the present invention, the guide cylinder assembly device 110 is equipped with an oil-containing bearing feeding mechanism; the oil-containing bearing feeding mechanism adopts a single chamfer screening vibration plate system to realize the sorting and separation of the oil-containing bearings, and conveys the sorted oil-containing bearings to the pressing station; the guide cylinder assembly device 110 also includes a first pressing mechanism for pressing the oil-containing guide bearing into the guide cylinder, a second pressing mechanism for pressing the positioning pin into the side hole of the guide cylinder, and a third pressing mechanism for simultaneously pressing the two sets of guide cylinder assemblies into the main hole of the electromagnet housing through a floating positioning mechanism; the guide cylinder assembly device 110 is provided with a pin pressing detection mechanism based on the principle of a go / no-go gauge, which is used to online check whether the guide cylinder pin is pressed and qualified.

[0044] Specifically, in the entire electromagnet automatic assembly production line, the guide cylinder assembly device 110 undertakes the assembly task of the guide cylinder assembly. The single chamfer screening vibration plate system used by the oil-containing bearing feeding mechanism is the starting point of the entire process. Through a unique vibration and screening design, the system utilizes the single chamfer characteristics of the oil-containing bearing to arrange and separate the oil-containing bearings in an orderly manner in the vibration plate. With the continuous vibration of the vibration plate, the oil-containing bearings are transported to the press-fitting station in a specific order in order to prepare for the subsequent press-fitting process, ensuring the efficiency and accuracy of the oil-containing bearing feeding. After receiving the oil-containing bearing, the first press-fitting mechanism will quickly and accurately press the oil-containing guide bearing into the guide cylinder. The second press-fitting mechanism focuses on pressing the positioning pin into the side hole of the guide cylinder. The role of the positioning pin is to ensure the position accuracy and stability of the guide cylinder during subsequent assembly and use. After completing the press-fitting of the oil-containing guide bearing and the positioning pin, the guide cylinder assembly is initially formed. At this time, the third press-fitting mechanism can simultaneously press the two sets of guide cylinder assemblies into the main hole of the electromagnet housing with the help of the floating positioning mechanism. The floating positioning mechanism is preferably a floating structure that can automatically adapt to possible slight position deviations between the main hole of the electromagnet housing and the guide cylinder assembly.

[0045] like Figure 4 As shown, according to an automatic assembly production line of electromagnets of the present invention, the armature and ejector assembly device 120 is equipped with a gasket feeding mechanism and an ejector feeding mechanism; the gasket feeding mechanism uses the principle of flexible vibration to separate the gaskets and transports the gaskets to the assembly position by vacuum suction; the ejector feeding mechanism uses a standard tray machine to cooperate with a multi-axis robot to grab the ejector and screw it into the corresponding position; the armature and ejector assembly device 120 also includes an assembly actuator for assembling the gasket and the ejector and tightening the armature parts into place. Specifically, the gasket feeding mechanism may include a vibration plate, which uses the principle of flexible vibration and the special design and vibration frequency of the vibration plate to gradually separate the gaskets in a disordered state in the plate. Once the gasket separation is completed, the vacuum suction device is started to accurately absorb the gasket and transport it to the assembly position smoothly. The ejector feeding mechanism relies on the coordination of the standard tray machine and the multi-axis robot. The standard tray machine arranges the ejector neatly to facilitate the multi-axis robot to grab it. The multi-axis robot can quickly and accurately grab the ejector and screw it into the corresponding position according to the preset program.

[0046] After the assembly actuator receives the parts from the gasket feeding mechanism and the ejector feeding mechanism, it starts to perform the assembly action. First, the gasket is accurately placed in the appropriate position to pave the way for the installation of the ejector. Then, the ejector is precisely docked with the gasket and other parts of the electromagnet, and the armature part is tightened into place through the tightening device. During the tightening process, the assembly actuator can control the tightening force and torque to ensure that the armature part is firmly installed, while avoiding damage to the part due to over-tightening.

[0047] Preferably, for different types of electromagnets, the armature and ejector assembly device 120 can be configured to adapt to different parts feeding methods and assembly methods through the same mechanism. For gaskets and ejector pins of various shapes, sizes and specifications, the gasket feeding mechanism and the ejector pin feeding mechanism can effectively process and assemble them, so that the production line does not need to be equipped with special assembly equipment for different types of electromagnets, reducing production costs and improving production efficiency.

[0048] like Figure 5 As shown, according to an automatic assembly production line of an electromagnet of the present invention, the yoke assembly device 130 is equipped with a small hole gasket and a small spring feeding mechanism; the small hole gasket and the small spring feeding mechanism use the principle of flexible vibration to separate the small hole gasket and the small spring respectively, carry the small hole gasket by vacuum adsorption, and carry the small spring by grabbing; the yoke assembly device 130 also includes an assembly mechanism for assembling the yoke into a component, a placement mechanism for placing the small hole gasket and the small spring into the electromagnet housing, and a pressing mechanism for pressing the yoke into the hole of the electromagnet housing. Specifically, the use of the principle of flexible vibration can effectively separate the small hole gasket and the small spring during the vibration process. Since the small hole gasket is light and thin, it can be carried by vacuum adsorption. When the small hole gasket is separated under the action of vibration, the vacuum adsorption device accurately adsorbs the gasket and stably carries it to the specified position. The small spring is easy to be entangled and can be carried by grabbing. The assembly mechanism is used to assemble the yoke into a component and position and connect the various parts of the yoke. The placement mechanism is responsible for accurately placing the small hole gasket and small spring delivered by the feeding mechanism into the electromagnet housing. During the placement process, the operation is strictly carried out according to the preset position and sequence to ensure that the small hole gasket and small spring are placed accurately, creating favorable conditions for the subsequent press-fitting of the yoke. After the small hole gasket and small spring are placed in the electromagnet housing, the press-fitting mechanism presses the assembled yoke assembly into the hole of the electromagnet housing. During the press-fitting process, the press-fitting mechanism preferably accurately controls the pressure and the pressing depth to ensure that the fit between the yoke and the housing is tight and meets the design requirements.

[0049] like Figure 6As shown, according to an automatic assembly production line of an electromagnet of the present invention, the automatic glue injection device 140 includes a two-component epoxy glue automatic glue injection machine, and a multi-axis robot for grabbing the shell and positioning it to the glue injection point; after the glue injection is completed, the multi-axis robot can repeatedly tilt the electromagnet shell at a certain angle and stop to ensure the uniformity of the glue injection space and make the glue level. Specifically, the two-component epoxy glue automatic glue injection machine can control the ratio and flow of the two-component epoxy glue to ensure that the glue is evenly mixed and accurately output according to the set dosage. During the glue injection process, the two-component epoxy glue automatic glue injection machine can adjust the output of the glue in real time according to the preset program to meet the glue injection requirements of different models of electromagnets. Before the glue injection starts, the multi-axis robot grabs the electromagnet shell and positions it to the glue injection point. After the glue injection is completed, in order to ensure the uniformity of the glue injection space and allow the glue to fully level, the multi-axis robot repeatedly tilts the electromagnet shell at a certain angle according to the pre-set program. After each tilt, the multi-axis robot will stop briefly to allow the glue to flow naturally under the action of gravity and fill every corner of the injection space. Through repeated tilting and stopping, the glue can be evenly distributed in the injection space, avoiding bubbles, voids or uneven glue accumulation.

[0050] like Figure 7 As shown, according to an automatic assembly production line of an electromagnet of the present invention, the leather cap assembly device 150 is equipped with a leather cap feeding mechanism, which assembles the leather cap, inner cover and seal into an assembly; the leather cap assembly device 150 also includes a positioning assembly mechanism that uses dual visual recognition to identify the direction of the positioning groove to directional assemble the inner cover and the push rod, and a pressing auxiliary mechanism that performs high-pressure blowing while the end of the multi-axis robot moves up and down multiple times when pressing the leather cap assembly into the end cover groove of the electromagnet to prevent the leather cap from being brought out by the suction nozzle, thereby ensuring reliable assembly of the leather cap.

[0051] Specifically, as the starting link, the leather cap feeding mechanism accurately assembles the leather cap, inner cover and seal into components according to the preset process requirements, laying the foundation for subsequent assembly. The positioning assembly mechanism uses a dual-vision recognition system to accurately identify the direction of the inner cover and the ejector pin positioning slot. It can obtain position and angle information through advanced image processing and analysis technology, and accurately assemble the inner cover to the ejector pin with the assistance of a multi-axis robot to ensure assembly accuracy and make the component structure more stable. The press-fitting auxiliary mechanism plays a key role when the leather cap assembly is pressed into the electromagnet end cap slot. Because there may be adsorption between the suction nozzle and the leather cap, which may easily lead to problems with being carried out, it controls the end of the multi-axis robot to move up and down multiple times and perform high-pressure air blowing at the same time, destroying the adsorption force to allow the leather cap to smoothly detach from the suction nozzle and accurately press into the end cap slot, ensuring that the leather cap is reliably assembled to avoid quality problems.

[0052] It can be understood that the multi-axis robots in different electromagnet assembly devices of the present invention can adopt different types according to needs. Different assembly processes have different requirements on the robot's motion accuracy, load capacity, working range, etc. Selecting the appropriate type of robot according to needs can improve the assembly efficiency and quality of the production line and meet the production requirements of different types of electromagnets.

[0053] like Figure 8 As shown, according to an electromagnet automatic assembly production line of the present invention, the push rod adjustment device 160 includes a power supply mechanism for energizing the coil of the electromagnet, a servo system for rotating the push rod, and a sensor for measuring the relative distance between the push rod and the end face of the shell; the push rod adjustment device 160 realizes the feedback and real-time adjustment of the push rod extension length through PID control. Specifically, when the push rod extension length needs to be adjusted, the power supply mechanism first energizes the coil of the electromagnet. Then, the servo system starts to operate, and according to the preset program and instructions, the rotation angle and speed of the push rod are accurately controlled to provide power support for adjusting the extension length of the push rod. During the rotation of the push rod, the sensor measures the relative distance between the push rod and the end face of the shell in real time, and feeds back the measured data to the PID control system. During the push rod adjustment process, the current relative distance data between the push rod and the end face of the shell fed back by the sensor is compared and analyzed with the preset standard value of the push rod extension length. If there is a deviation between the measured value and the standard value, the PID control system will quickly calculate the amount to be adjusted and issue a control instruction to the servo system in time. The servo system further adjusts the rotation of the ejector rod according to these instructions, so that the extended length of the ejector rod approaches the standard value.

[0054] Fig. 9 FIG. 1 is a flow chart of an electromagnet assembly process of an electromagnet automatic assembly production line according to a preferred embodiment of the present invention. Fig. 9 As shown in the figure, the electromagnet assembly process specifically includes the following: The process of the electromagnet automatic assembly line starts with labeling and marking to give the product identification information. Then the guide cylinder assembly is assembled to provide basic guidance for subsequent parts assembly. Then the armature assembly, coil assembly, yoke assembly and circuit board assembly are assembled in sequence.

[0055] After the assembly of some components is completed, semi-finished product testing is carried out to detect the performance status of the assembled components. After that, automatic glue injection is carried out. The two-component epoxy glue is injected by an automatic glue injection machine. The multi-axis robot grabs the shell and positions it. After the glue is injected, the shell is tilted to make the glue level.

[0056] Then, the end cap assembly, the leather cap assembly and the pressing sheet assembly are assembled in sequence. When assembling the leather cap assembly, the leather cap, the inner cap and the seal are first assembled into an assembly by the leather cap feeding mechanism, and then the inner cap and the ejector pin are assembled in a directional manner by the positioning assembly mechanism, and finally the pressing auxiliary mechanism ensures that the leather cap is reliably pressed into the end cap groove. When assembling the ejector pin, the ejector pin adjustment device 160 cooperates with the power supply mechanism, the servo system and the sensor, and uses PID control to realize online automatic adjustment of the ejector pin extension length.

[0057] When the assembly is nearing the end, pressure resistance and performance tests are carried out to check the performance of the finished electromagnet under different conditions to ensure that the product meets the quality standards.

[0058] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "mode", "specific mode", or "some modes" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or mode are included in at least one embodiment or mode of the embodiment of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or mode. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or modes in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or modes described in this specification and the features of the different embodiments or modes, without contradiction.

[0059] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An automatic assembly production line for electromagnets, characterized in that: include: Conveyor line, used to convey semi-finished or finished electromagnets during assembly; An automatic loading device, arranged at the starting end of the conveyor line, for loading the electromagnet housing onto the conveyor line; An automatic unloading device, arranged at the tail end of the conveyor line, for recovering the assembled electromagnet finished product from the conveyor line; The starting end of the conveyor line is also provided with a marking device for identifying the model of the electromagnet to be assembled and marking the electromagnet housing; A plurality of electromagnet assembly devices are sequentially arranged along the conveyor line between the starting end and the tail end of the conveyor line, and are used to sequentially perform assembly procedures corresponding to the model of the electromagnet according to the model of the electromagnet.

2. The electromagnet automatic assembly production line according to claim 1, characterized in that: The conveying line extends linearly; Alternatively, the starting end of the conveyor line and the tail end of the conveyor line are connected to form a quadrilateral or other polygonal closed conveyor line, wherein the automatic loading device and the automatic unloading device are arranged side by side.

3. The electromagnet automatic assembly production line according to claim 1, characterized in that: It includes a first performance testing device, which is arranged at the tail end of the conveyor line and is used to perform a withstand voltage and performance test process on the assembled electromagnet; And / or, it includes at least one second performance testing device, which is arranged between any adjacent electromagnet assembly devices to perform a semi-finished product testing process on the semi-finished electromagnet.

4. The automatic electromagnet assembly production line according to any one of claims 1 to 3, characterized in that: The various electromagnet assembly devices specifically include: A guide cylinder assembly device, used for assembling the guide cylinder assembly onto the electromagnet housing; An armature and ejector assembly device, used to complete the assembly of the armature and ejector; A yoke assembly device, used for assembling the yoke assembly into the electromagnet housing; An automatic glue injection device, used for performing glue injection and sealing treatment on the electromagnet; A leather cap assembly assembly device, used for installing the leather cap; A pressing piece assembly device, used for assembling the pressing piece to a corresponding position of the electromagnet; The push rod adjusting device is used for online adjusting the extension length of the push rod of the electromagnet.

5. The electromagnet automatic assembly production line according to claim 4, characterized in that: The guide cylinder assembly device is equipped with an oil-containing bearing feeding mechanism; The oil-containing bearing feeding mechanism adopts a single chamfered screening vibration plate system to achieve sorting and separation of the oil-containing bearings, and transports the sorted oil-containing bearings to the press-fitting station; The guide cylinder assembly device also includes a first press-fitting mechanism for press-fitting the oil-containing guide bearing into the guide cylinder, a second press-fitting mechanism for press-fitting the positioning pin into the side hole of the guide cylinder, and a third press-fitting mechanism for simultaneously press-fitting the two sets of guide cylinder assemblies into the main hole of the electromagnet housing through a floating positioning mechanism; The guide cylinder assembly device is provided with a pin press-fit detection mechanism based on the go / no-go gauge principle, which is used for online inspection of whether the guide cylinder pin is press-fitted properly.

6. The electromagnet automatic assembly production line according to claim 4, characterized in that: The armature and ejector assembly device is equipped with a gasket feeding mechanism and an ejector feeding mechanism; The gasket feeding mechanism separates the gaskets by using the flexible vibration principle and carries the gaskets to the assembly position by vacuum suction; The ejector rod feeding mechanism adopts a standard tray machine in conjunction with a multi-axis robot to grab the ejector rod and screw it into the corresponding position; The armature and push rod assembly device also includes an assembly actuator for assembling the gasket and the push rod and tightening the armature parts into place.

7. The electromagnet automatic assembly production line according to claim 4, characterized in that: The yoke assembly device is equipped with a small hole gasket and a small spring feeding mechanism; The small hole gasket and small spring feeding mechanism adopts the flexible vibration principle to separate the small hole gasket and the small spring respectively, and transports the small hole gasket by vacuum adsorption and transports the small spring by grabbing; The yoke assembly device also includes an assembly mechanism for assembling the yoke into components, a placement mechanism for placing a small hole gasket and a small spring into the electromagnet housing, and a pressing mechanism for pressing the yoke into the hole of the electromagnet housing.

8. The electromagnet automatic assembly production line according to claim 4, characterized in that: The automatic glue injection device includes a two-component epoxy glue automatic glue injection machine and a multi-axis robot for grabbing the shell and positioning it at the glue injection point; After the glue injection is completed, the multi-axis robot can repeatedly tilt the electromagnet housing at a certain angle and stop to ensure the uniformity of the glue injection space and make the glue level.

9. The electromagnet automatic assembly production line according to claim 4, characterized in that: The leather cap assembly assembly device is equipped with a leather cap feeding mechanism, and the leather cap feeding mechanism assembles the leather cap, the inner cover and the sealing member into an assembly; The leather cap assembly assembly device also includes a positioning assembly mechanism that uses dual visual recognition to identify the direction of the positioning groove to directional assemble the inner cover and the push rod, and a pressing auxiliary mechanism that performs high-pressure blowing while the end of the multi-axis robot moves up and down multiple times when pressing the leather cap assembly into the end cover groove of the electromagnet to prevent the leather cap from being brought out by the suction nozzle, thereby ensuring reliable assembly of the leather cap.

10. The electromagnet automatic assembly production line according to claim 4, characterized in that: The push rod adjustment device includes a power supply mechanism for energizing the coil of the electromagnet, a servo system for rotating the push rod, and a sensor for measuring the relative distance between the push rod and the end surface of the shell; The push rod adjustment device realizes feedback and real-time adjustment of the push rod extension length through PID control.

Images