Control method, system and assembly device for realizing dual pressure riveting pliers based on single hydraulic station in automobile factory

Abstract

The present invention relates to the field of automobile manufacturing technology, and in particular to a control method, system, and assembly device for implementing dual pressure riveting pliers based on a single hydraulic station in an automobile factory, including defining the working conditions M of a first pressure riveting plier and the working conditions N of a second pressure riveting plier in a PLC controller within a scenario; verifying whether the scenario of implementing dual pressure riveting pliers based on a single hydraulic station in an automobile factory is in operation, collecting the working conditions of each pressure riveting plier based on the PLC controller, and driving the corresponding pressure riveting pliers to perform corresponding actions, so as to achieve different riveting plier pressures for different rivets. According to an embodiment of the present invention, the control method for implementing dual pressure riveting pliers based on a single hydraulic station in an automobile factory can use the two existing pressure relays of the hydraulic station to respectively control the different riveting forces of the two riveting pliers, thereby achieving the effect of installing two riveting pliers based on the same hydraulic station to achieve different riveting forces.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile manufacturing, and in particular to a control method, system and assembly device for realizing dual-pressure riveting pliers based on a single hydraulic station in an automobile factory. Background Art

[0002] The existing frame plant's NA and NB lines have a total of 56 hydraulic riveting machines, all of which are essentially equipped with dual rivet clamps. The process layout dictates that the same rivets are riveted at the same workstation, so the pressure from both rivet clamps is the same. However, as the process layout changes, the rivet sizes at the same workstation vary, requiring different riveting forces from the two rivet clamps to meet the process quality requirements of each rivet.

[0003] The existing riveting machine has two pressure relays, of which the low-pressure relay controls the boost and the high-pressure relay controls the return. From the PLC program control, the two pressure relays also enter the PLC input points respectively, one controls the action of the boost cylinder and the other controls the return (i.e., the riveting force). To achieve different pressure control of the two riveting clamps, it is necessary to add another pressure relay, which requires the hydraulic circuit to be modified, and the modification project is large; or add a riveting machine, which will increase the cost accordingly and increase the equipment footprint, which is insufficient. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a control method, system and assembly device for realizing dual pressure riveting pliers based on a single hydraulic station in an automobile factory.

[0005] According to the first embodiment of the present invention, a control method for implementing dual pressure riveting pliers based on a single hydraulic station in an automobile factory includes:

[0006] Step S100: Building a scenario of implementing dual pressure riveting pliers based on a single hydraulic station in an automobile factory;

[0007] Step S200: defining a working condition M of the first pressure riveting pliers and a working condition N of the second pressure riveting pliers in the PLC controller in the scene;

[0008] Step S300: Determine whether the scenario of implementing dual pressure riveting pliers based on a single hydraulic station in an automobile factory is operating normally. If the scenario of implementing dual pressure riveting pliers based on a single hydraulic station in an automobile factory is operating normally, jump to step S500; if not, jump to step S400;

[0009] Step S400: The PLC controller in the scene sends a fault signal instruction to the control module of the hydraulic station console. The control module of the hydraulic station console recognizes the fault signal instruction and issues a fault warning. The process of implementing the dual pressure riveting clamps in the single hydraulic station is interrupted until the fault is eliminated, and then the process jumps to step S300.

[0010] Step S500: The PLC controller collects the working conditions of each pressure riveting clamp in step S200 and drives the corresponding pressure riveting clamp to perform corresponding actions, so as to achieve different riveting clamp pressures for different rivets;

[0011] Step S600: The control process of the dual pressure riveting tongs based on the single hydraulic station of the automobile factory is completed.

[0012] According to the control method for realizing dual-pressure riveting pliers based on a single hydraulic station in an automobile factory according to an embodiment of the present invention, the two existing pressure relays of the hydraulic station can be used to control the different riveting forces of the two riveting pliers respectively, thereby achieving the effect of installing two riveting pliers with different riveting forces based on the same hydraulic station.

[0013] According to some embodiments of the present invention, defining the working condition M of the first pressure riveting pliers in step S200 specifically includes:

[0014] The boost start condition A of the first pressure riveting pliers and the return condition B of the first pressure riveting pliers are defined, wherein the boost start condition A is associated with the start button of the first pressure riveting pliers, and the start is started after the start button on the riveting pliers sends an approach signal.

[0015] According to some embodiments of the present invention, the return condition B of the first pressure riveting pliers is associated with the timer of the PLC controller, the first pressure relay and the boost starting condition A. When the boost starting condition A is triggered, the timer of the PLC controller starts timing, and the boost signal is simulated through the time relay of the PLC controller to start boosting. When the boost reaches the riveting force threshold corresponding to the preset time, the first pressure relay sends a signal to the PLC controller, triggering the return condition B of the first pressure riveting pliers, and the working cylinder of the first pressure riveting pliers returns, completing the boosting and return process of the first pressure riveting pliers.

[0016] According to some embodiments of the present invention, defining the working condition N of the second pressure riveting pliers in step S200 specifically includes:

[0017] The boost start condition C of the second pressure riveting pliers and the return condition D of the second pressure riveting pliers are defined, wherein the boost start condition C is associated with the start button of the second pressure riveting pliers, and the start is started after the start button on the riveting pliers sends an approach signal.

[0018] According to some embodiments of the present invention, the return condition D of the second pressure riveting pliers is associated with the timer of the PLC controller, the second pressure relay and the boost start condition C. When the boost start condition C is triggered, the timer of the PLC controller starts timing, and the boost signal is simulated through the time relay of the PLC controller to start boosting. When the boost reaches the riveting force threshold corresponding to the preset time, the second pressure relay sends a signal to the PLC controller, triggering the return condition D of the second pressure riveting pliers, and the working cylinder of the second pressure riveting pliers returns, completing the boost and return process of the second pressure riveting pliers.

[0019] According to some embodiments of the present invention, the scenario of building a dual pressure riveting pliers based on a single hydraulic station in an automobile factory in step S100 specifically includes:

[0020] Build a single hydraulic station processing line with dual riveting pliers. The single hydraulic station processing line is equipped with a PLC controller. The output end of the PLC controller is connected to the electromagnetic control valve of the booster cylinder and the electromagnetic control valve of the return cylinder of the riveting pliers.

[0021] Each riveting tongs is provided with a start button and a pressure relay, the start button is electrically connected to the input end of the PLC controller, and the pressure relay is electrically connected to the input end of the PLC controller.

[0022] According to a second embodiment of the present invention, a control system for implementing dual pressure riveting pliers based on a single hydraulic station in an automobile factory includes:

[0023] A single hydraulic station processing line with dual riveting pliers is used to provide two sets of riveting pliers, which facilitates the output of different riveting forces through the control system, achieving the effect of installing two riveting pliers with different riveting forces on the same hydraulic station;

[0024] An input module, the input module is connected to the PLC controller of the single hydraulic station processing line, and is used to input and define the working conditions M of the first pressure riveting pliers and the working conditions N of the second pressure riveting pliers;

[0025] A judgment module is used to determine whether the scenario of implementing dual pressure riveting pliers based on a single hydraulic station in an automobile factory is operating normally;

[0026] An acquisition module is used to acquire trigger signals in the working conditions defined by the input module;

[0027] The control output module receives the trigger signal collected by the collection module and drives the riveting clamp to perform corresponding actions.

[0028] According to some embodiments of the present invention, the single hydraulic station processing line containing double riveting pliers is configured with a PLC controller, the output end of the PLC controller is connected to the boost cylinder electromagnetic control valve and return cylinder electromagnetic control valve of the riveting pliers, and the working process of the riveting pliers is realized through the PLC controller.

[0029] According to some embodiments of the present invention, each riveting pliers is provided with a start button and a pressure relay, the start button is electrically connected to the input end of the PLC controller, and the pressure relay is electrically connected to the input end of the PLC controller, for providing a trigger signal for the PLC controller to implement the working process of the riveting pliers.

[0030] According to an embodiment of the third aspect of the present invention, an assembly device comprises utilizing the above-mentioned control system for realizing dual pressure riveting pliers based on a single hydraulic station in an automobile factory to control dual pressure riveting pliers on a single hydraulic station.

[0031] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0033] Figure 1 This is a flow chart of a control method for implementing dual pressure riveting pliers based on a single hydraulic station in an automobile factory according to an embodiment of the present invention. DETAILED DESCRIPTION

[0034] The embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0035] It should be noted that when an element is referred to as being “fixed to” another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or there may be an intermediate element.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used in this specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0037] In the specification, claims, and accompanying drawings of this application, the terms "first," "second," "third," and the like are used to distinguish different objects and are not used to describe a particular order. Furthermore, the terms "including," "comprising," "having," and any variations thereof are intended to cover non-exclusive inclusions. For example, a list of steps or elements may be included, or alternatively, steps or elements not listed may be included, or other steps or elements may be included that are inherent to the process, method, product, or apparatus.

[0038] Only portions relevant to the present application are shown in the accompanying drawings, not all of them. Before discussing the exemplary embodiments in more detail, it should be noted that some exemplary embodiments are described as processes or methods depicted as flow charts. Although the flow charts describe the various operations (or steps) as sequential processes, many of the operations can be performed in parallel, concurrently, or simultaneously. In addition, the order of the various operations can be rearranged. The process can be terminated when its operations are completed, but can also have additional steps not included in the accompanying drawings. The process can correspond to a method, function, procedure, subroutine, subprogram, etc.

[0039] As used in this specification, the terms "component," "module," "system," "unit," and the like are used to refer to computer-related entities, hardware, firmware, a combination of hardware and software, software, or software in execution. For example, a unit can be, but is not limited to, a process running on a processor, a processor, an object, an executable file, an execution thread, a program, and / or distributed between two or more computers. In addition, these units can be executed from various computer-readable media having various data structures stored thereon. Units can communicate, for example, via local and / or remote processes based on signals having one or more data packets (e.g., data from a second unit interacting with another unit in a local system, a distributed system, and / or a network, such as the Internet, which interacts with other systems via signals).

[0040] Example 1

[0041] See Figure 1 As shown, this embodiment provides a control method for implementing dual pressure riveting pliers based on a single hydraulic station in an automobile factory, which includes:

[0042] Step S100: Building a scenario of implementing dual pressure riveting pliers based on a single hydraulic station in an automobile factory;

[0043] Step S200: defining a working condition M of the first pressure riveting pliers and a working condition N of the second pressure riveting pliers in the PLC controller in the scene;

[0044] Step S300: Determine whether the scenario of implementing dual pressure riveting pliers based on a single hydraulic station in an automobile factory is operating normally. If the scenario of implementing dual pressure riveting pliers based on a single hydraulic station in an automobile factory is operating normally, jump to step S500; if not, jump to step S400;

[0045] Step S400: The PLC controller in the scene sends a fault signal instruction to the control module of the hydraulic station console. The control module of the hydraulic station console recognizes the fault signal instruction and issues a fault warning. The process of implementing the dual pressure riveting clamps in the single hydraulic station is interrupted until the fault is eliminated, and then the process jumps to step S300.

[0046] Step S500: The PLC controller collects the working conditions of each pressure riveting pliers in step S200 and drives the corresponding pressure riveting pliers to perform corresponding actions.

[0047] Step S600: The control process of the dual pressure riveting tongs based on the single hydraulic station of the automobile factory is completed.

[0048] According to the control method for realizing dual-pressure riveting pliers based on a single hydraulic station in an automobile factory according to an embodiment of the present invention, the two existing pressure relays of the hydraulic station can be used to control the different riveting forces of the two riveting pliers respectively, thereby achieving the effect of installing two riveting pliers with different riveting forces based on the same hydraulic station.

[0049] Specifically, the working condition M of the first pressure riveting pliers defined in step S200 specifically includes:

[0050] The boost start condition A of the first pressure riveting pliers and the return condition B of the first pressure riveting pliers are defined, wherein the boost start condition A is associated with the start button of the first pressure riveting pliers, and the start is started after the start button on the riveting pliers sends an approach signal.

[0051] Specifically, the return condition B of the first pressure riveting pliers is associated with the timer of the PLC controller, the first pressure relay and the boost start condition A. When the boost start condition A is triggered, the timer of the PLC controller starts timing, and the boost signal is simulated through the time relay of the PLC controller to start boosting. When the boost reaches the riveting force threshold corresponding to the preset time, the first pressure relay sends a signal to the PLC controller, triggering the return condition B of the first pressure riveting pliers, and the working cylinder of the first pressure riveting pliers returns, completing the boost and return process of the first pressure riveting pliers.

[0052] Specifically, the working condition N of the second pressure riveting pliers defined in step S200 specifically includes:

[0053] The boost start condition C of the second pressure riveting pliers and the return condition D of the second pressure riveting pliers are defined, wherein the boost start condition C is associated with the start button of the second pressure riveting pliers, and the start is started after the start button on the riveting pliers sends an approach signal.

[0054] Specifically, the return condition D of the second pressure riveting pliers is associated with the timer of the PLC controller, the second pressure relay and the boost start condition C. When the boost start condition C is triggered, the timer of the PLC controller starts timing, and the boost signal is simulated through the time relay of the PLC controller to start boosting. When the boost reaches the riveting force threshold corresponding to the preset time, the second pressure relay sends a signal to the PLC controller, triggering the return condition D of the second pressure riveting pliers, and the working cylinder of the second pressure riveting pliers returns, completing the boost and return process of the second pressure riveting pliers.

[0055] Specifically, the scenario of building a dual pressure riveting pliers based on a single hydraulic station in an automobile factory in step S100 specifically includes:

[0056] Build a single hydraulic station processing line with dual riveting pliers. The single hydraulic station processing line is equipped with a PLC controller. The output end of the PLC controller is connected to the electromagnetic control valve of the booster cylinder and the electromagnetic control valve of the return cylinder of the riveting pliers.

[0057] Each riveting tongs is provided with a start button and a pressure relay, the start button is electrically connected to the input end of the PLC controller, and the pressure relay is electrically connected to the input end of the PLC controller.

[0058] Example 2

[0059] This embodiment provides a control system for implementing dual pressure riveting pliers based on a single hydraulic station in an automobile factory, including:

[0060] A single hydraulic station processing line with dual riveting pliers is used to provide two sets of riveting pliers, which facilitates the output of different riveting forces through the control system, achieving the effect of installing two riveting pliers with different riveting forces on the same hydraulic station;

[0061] An input module, the input module is connected to the PLC controller of the single hydraulic station processing line, and is used to input and define the working conditions M of the first pressure riveting pliers and the working conditions N of the second pressure riveting pliers;

[0062] A judgment module is used to determine whether the scenario of implementing dual pressure riveting pliers based on a single hydraulic station in an automobile factory is operating normally;

[0063] An acquisition module is used to acquire trigger signals in the working conditions defined by the input module;

[0064] The control output module receives the trigger signal collected by the collection module and drives the riveting clamp to perform corresponding actions.

[0065] Specifically, the single hydraulic station processing line with double riveting pliers is equipped with a PLC controller, the output end of which is connected to the boost cylinder electromagnetic control valve and the return cylinder electromagnetic control valve of the riveting pliers, and the working process of the riveting pliers is realized through the PLC controller.

[0066] Specifically, each riveting pliers is provided with a start button and a pressure relay. The start button is electrically connected to the input end of the PLC controller, and the pressure relay is electrically connected to the input end of the PLC controller to provide a trigger signal for the PLC controller to implement the working process of the riveting pliers.

[0067] Example 3

[0068] This embodiment provides an assembly device, which includes utilizing the above-mentioned control system for realizing dual pressure riveting pliers based on a single hydraulic station in an automobile factory to control the dual pressure riveting pliers on a single hydraulic station.

[0069] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as a limitation to the invention.

[0070] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "example," "specific example," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0071] Obviously, the described embodiments are only some of the embodiments of the present application, rather than all of the embodiments. Mentioning "embodiment" in this article means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present embodiment application. The appearance of this phrase in various positions in the specification does not necessarily mean that they are all the same embodiments, nor are they independent or alternative embodiments that are mutually exclusive with other embodiments. It can be understood explicitly and implicitly by those skilled in the art that the embodiments described herein can be combined with other embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without making creative work are within the scope of protection of this application.

[0072] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the claims and their equivalents.

Claims

1. A control method for realizing dual pressure riveting pliers based on a single hydraulic station in an automobile factory, characterized in that: include: Step S100: Building a scenario of implementing dual-pressure riveting pliers based on a single hydraulic station in an automobile factory, including building a single hydraulic station processing line containing dual riveting pliers, wherein the single hydraulic station processing line is configured with a PLC controller, wherein the output end of the PLC controller is connected to the solenoid control valve of the boost cylinder and the solenoid control valve of the return cylinder of the riveting pliers; each riveting plier is provided with a start button and a pressure relay, wherein the start button is electrically connected to the input end of the PLC controller, and the pressure relay is electrically connected to the input end of the PLC controller; Step S200: defining the working condition M of the first pressure riveting pliers and the working condition N of the second pressure riveting pliers in the PLC controller in the scene, wherein: The working conditions of the first pressure riveting pliers include: Define the boost start condition A of the first pressure riveting pliers and the return condition B of the first pressure riveting pliers, wherein the boost start condition A is associated with the start button of the first pressure riveting pliers, and the start is started after the start button on the riveting pliers sends an approach signal. The return condition B of the first pressure riveting pliers is associated with the timer of the PLC controller, the first pressure relay and the boost start condition A. When the boost start condition A is triggered, the timer of the PLC controller starts timing, and the boost signal is simulated by the time relay of the PLC controller to start boosting. When the boost reaches the riveting force threshold corresponding to the preset time, the first pressure relay sends a signal to the PLC controller, triggering the return condition B of the first pressure riveting pliers, and the working cylinder of the first pressure riveting pliers returns, completing the boost and return process of the first pressure riveting pliers; The working conditions N of the second pressure riveting pliers include: Define the boost start condition C of the second pressure riveting pliers and the return condition D of the second pressure riveting pliers, wherein the boost start condition C is associated with the start button of the second pressure riveting pliers, and the start is started after the start button on the riveting pliers sends an approach signal. The return condition D of the second pressure riveting pliers is associated with the timer of the PLC controller, the second pressure relay and the boost start condition C. When the boost start condition C is triggered, the timer of the PLC controller starts timing, and the boost signal is simulated by the time relay of the PLC controller to start boosting. When the boost reaches the riveting force threshold corresponding to the preset time, the second pressure relay sends a signal to the PLC controller, triggering the return condition D of the second pressure riveting pliers, and the working cylinder of the second pressure riveting pliers returns, completing the boost and return process of the second pressure riveting pliers; Step S300: Determine whether the scenario of implementing dual pressure riveting pliers based on a single hydraulic station in an automobile factory is operating normally. If the scenario of implementing dual pressure riveting pliers based on a single hydraulic station in an automobile factory is operating normally, jump to step S500; if not, jump to step S400; Step S400: The PLC controller in the scene sends a fault signal instruction to the control module of the hydraulic station console. The control module of the hydraulic station console recognizes the fault signal instruction and issues a fault warning. The process of implementing the dual pressure riveting clamps in the single hydraulic station is interrupted until the fault is eliminated, and then the process jumps to step S300. Step S500: The PLC controller collects the working conditions of each pressure riveting pliers in step S200 and drives the corresponding pressure riveting pliers to perform corresponding actions; Step S600: The control process of the dual pressure riveting tongs based on the single hydraulic station of the automobile factory is completed.

2. A control system for realizing dual pressure riveting pliers based on a single hydraulic station in an automobile factory, characterized in that: For implementing the control method according to claim 1, comprising: A single hydraulic station processing line with dual riveting pliers is used to provide two sets of riveting pliers, which facilitates the output of different riveting forces through the control system, achieving the effect of installing two riveting pliers with different riveting forces on the same hydraulic station; An input module, connected to a PLC controller of a single hydraulic station processing line, for inputting and defining a working condition M of the first pressure riveting pliers and a working condition N of the second pressure riveting pliers; A judgment module is used to determine whether the scenario of implementing dual pressure riveting pliers based on a single hydraulic station in an automobile factory is operating normally; An acquisition module is used to acquire trigger signals in the working conditions defined by the input module; The control output module receives the trigger signal collected by the collection module and drives the riveting clamp to perform corresponding actions.

3. An assembly device, characterized in that: The method comprises utilizing the control system for realizing dual pressure riveting pliers based on a single hydraulic station in an automobile factory as described in claim 2 to control the dual pressure riveting pliers on a single hydraulic station.

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