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CN-122007842-A - Hinge oil pipe assembly assembling device and assembling method

CN122007842ACN 122007842 ACN122007842 ACN 122007842ACN-122007842-A

Abstract

The invention discloses a hinge oil pipe assembly assembling device and a hinge oil pipe assembly assembling method, and aims to solve the technical problems that when an existing intermittent rotary workbench assembles the hinge oil pipe assembly, under the vibration, inertia and centrifugal force effects generated by rotation of the workbench and station transfer, through holes of an oil pipe telescopic rod are misplaced with riveting holes of a triangular piece, through-pin collision and part scratch deformation are caused, and the existing solution cannot achieve both precision and efficiency. The device comprises an intermittent rotary workbench, a multi-station mechanism, a matched control module, a sensing module and the like, wherein the method monitors the vibration state in real time, accurately identifies the hole position deviation and completes compensation through the cooperative flow of vibration monitoring, deviation judging, active compensation and rivet penetration riveting, and ensures that the two holes are coaxial and then rivet penetration riveting is carried out. The invention realizes high-precision and high-efficiency assembly in a vibration environment, effectively improves the production yield, reduces the cost, is suitable for large-scale production, and has reasonable structure, convenient operation and high degree of automation.

Inventors

  • LIU GUIXUAN

Assignees

  • 揭阳市炬之密科技有限公司

Dates

Publication Date
20260512
Application Date
20260409

Claims (8)

  1. 1. A method of assembling a hinged oil tube assembly comprising the steps of: S1, vibration monitoring, namely feeding a triangular piece and an oil pipe into a clamp by a feeding mechanism at a feeding station, clamping and fixing the triangular piece and the oil pipe, aligning a through hole in a telescopic rod of the oil pipe with a riveting hole in the triangular piece at the moment, rotating the clamp to a nailing station along with a workbench, finishing positioning, and then detecting the overall average value of vibration intensity in the transmission process from the feeding station to a riveting station by a sensing module, and feeding back vibration data to a control module; S2, a deviation judging step, namely judging the received vibration data by the control module, triggering the identification module if the vibration data is larger than a threshold value M1, identifying and imaging the through hole and the riveting hole by the identification module, identifying the included angle between the axes of the through hole and the riveting hole and feeding back the included angle to the control module, and entering the step S3 if the included angle A of the axes is larger than the threshold value M2, otherwise entering the step S4; if the vibration data is smaller than the threshold M1, entering a step S4; S3, an active compensation step, wherein the control module controls the active compensation executing mechanism to drive the piston rod to move according to the axis included angle data fed back by the visual positioning module until the through hole is coaxial with the axis of the riveting hole, and then the step S4 is performed; S4, a rivet penetrating and riveting step, namely controlling the rivet penetrating mechanism to penetrate the rivet penetrating hole of the hinge triangular piece and the through hole of the hydraulic oil pipe through the control module, and then rotating the workbench to enable the pin to enter the riveting station for riveting.
  2. 2. The assembly method of a hinged oil pipe assembly according to claim 1, wherein in step S2, the identification module synchronously identifies the distance h between the axes of the through hole and the rivet hole, and when the distance h is greater than a threshold value M3 and/or the angle a is greater than a threshold value M2, the process proceeds to step S3, and otherwise proceeds to step S4.
  3. 3. The assembly method of a hinged oil pipe assembly according to claim 2, wherein a distance reference threshold value M30 and an included angle reference threshold value M20 corresponding to a standard aperture R0 of the through hole are preset in the control module, the control module calculates an actual threshold value M2 and a threshold value M3 according to R0, M30, M20 and an actual aperture R1 of the through hole, m2=a×m20×r1/R0, m3=b×m30×r1/R0, and a and b are both adjustment coefficients.
  4. 4. The method of assembling a hinged oil pipe assembly of claim 3, wherein in step S2, the control module calculates a comprehensive influence parameter q=k1×a+k2×h according to the included angle a and the distance h, and the control module proceeds to step S3 when the comprehensive influence parameter Q is greater than a predetermined value M4, and otherwise proceeds to step S4, wherein k1+k2=1 and k2/k1=m2/M3.
  5. 5. The method for assembling a hinged oil pipe assembly according to claim 3, wherein a standard threshold value M10 of a vibration intensity mean value corresponding to a standard aperture R0 of the through hole is preset in the control module, the control module corrects an actual threshold value M1 corresponding to the vibration intensity mean value to B1 times according to R0 and the standard threshold value M10, and b1=cxr1/R0, wherein c is an adjustment coefficient.
  6. 6. The method according to claim 5, wherein the control module generates a curve P (Z) of the vibration intensity Z over time after receiving the data of the vibration intensity, calculates an integrated value J of the curve P (Z) in real time, and corrects the actual threshold value M1 corresponding to the vibration intensity mean value downward when detecting that the integrated value J is greater than the set value.
  7. 7. A hinged oil pipe assembly assembling device for implementing the hinged oil pipe assembly assembling method of any one of claims 1-6, which is characterized by comprising an intermittent rotating workbench, a feeding station, a nailing station, a riveting station, a control module, a sensing module, an identification module, an active compensation executing mechanism, a nailing mechanism and a clamp which are arranged around the workbench in sequence; The clamp is uniformly arranged on the workbench and is used for clamping and fixing the triangular piece and the oil pipe; the sensing module is arranged at the nailing station and used for detecting the integral average value of the vibration intensity in the process of rotating the clamp from the feeding station to the nailing station and transmitting vibration data to the control module; The identification module is arranged corresponding to the nailing station and is used for identifying the axis included angle and the axis distance between the through hole of the telescopic rod of the oil pipe and the riveting hole of the triangular piece; the active compensation executing mechanism is electrically connected with the control module and is used for driving the oil pipe piston rod to move under the control of the control module so as to realize deviation compensation; the pin penetrating mechanism is arranged corresponding to the pin penetrating station and used for penetrating the pin through the through hole and the riveting hole; all the modules and the mechanisms are coordinated and linked by a control module.
  8. 8. The hinged tubing assembly apparatus of claim 7, further comprising a control panel.

Description

Hinge oil pipe assembly assembling device and assembling method Technical Field The invention relates to the technical field of hardware hinge assembly, in particular to an assembly device and an assembly method for a hinge oil pipe assembly. Background The oil pipe assembly in the hydraulic hinge is a core component part of the hydraulic hinge, the assembly is usually formed by riveting a triangular piece and an oil pipe through pins, and the assembly precision directly influences the overall performance and the service life of the hydraulic hinge, so that the automatic assembly quality of the oil pipe assembly is highly required. For promoting the packaging efficiency of oil pipe subassembly, satisfy the scale production demand, current automatic assembly line adopts the swivel work head generally to carry out part transportation and assembly, and this equipment mode is supporting to be provided with a series of mechanisms such as lamination group material loading, triangle material loading, through nail, riveting, finished product unloading along the direction of rotation of swivel work head around, can realize the synchronous operation of multistation, effectively promoted packaging efficiency. However, the existing rotary workbench inevitably generates vibration in the rotation process, and the inertia and centrifugal force caused by the transfer and rotation of a plurality of stations are superposed, so that the through hole for riveting with the triangular piece on the telescopic rod of the oil pipe can be misplaced in the assembly process (the telescopic rod is smaller than the cylinder part of the oil pipe, so that the clamp only clamps the cylinder part of the oil pipe), namely, in the nailing station, the riveting hole and the through hole of the triangular piece are misplaced, so that the pin collides with the through hole when penetrating the riveting hole and the through hole, the part is scratched and deformed, and the production yield is influenced. Disclosure of Invention In order to solve the problems in the prior art, the invention provides an assembly device and an assembly method for a hinged oil pipe assembly. The aim of the invention can be achieved by the following technical scheme: the assembly device and the assembly method of the hinged oil pipe assembly comprise the following steps: S1, vibration monitoring, namely feeding a triangular piece and an oil pipe into a clamp by a feeding mechanism at a feeding station, clamping and fixing the triangular piece and the oil pipe, aligning a through hole in a telescopic rod of the oil pipe with a riveting hole in the triangular piece at the moment, rotating the clamp to a nailing station along with a workbench, finishing positioning, and then detecting the overall average value of vibration intensity in the transmission process from the feeding station to a riveting station by a sensing module, and feeding back vibration data to a control module; S2, a deviation judging step, namely judging the received vibration data by the control module, triggering the identification module if the vibration data is larger than a threshold value M1, identifying and imaging the through hole and the riveting hole by the identification module, identifying the included angle between the axes of the through hole and the riveting hole and feeding back the included angle to the control module, and entering the step S3 if the included angle A of the axes is larger than the threshold value M2, otherwise entering the step S4; if the vibration data is smaller than the threshold M1, entering a step S4; S3, an active compensation step, wherein the control module controls the active compensation executing mechanism to drive the piston rod to move according to the axis included angle data fed back by the visual positioning module until the through hole is coaxial with the axis of the riveting hole, and then the step S4 is performed; S4, a rivet penetrating and riveting step, namely controlling the rivet penetrating mechanism to penetrate the rivet penetrating hole of the hinge triangular piece and the through hole of the hydraulic oil pipe through the control module, and then rotating the workbench to enable the pin to enter the riveting station for riveting. Further, in step S2, the identification module synchronously identifies the distance h between the axes of the through hole and the rivet hole, and when the distance h is greater than the threshold value M3 and/or the included angle a is greater than the threshold value M2, the step S3 is entered, and otherwise, the step S4 is entered. Further, a distance reference threshold value M30 and an included angle reference threshold value M20 corresponding to a standard aperture R0 of the through hole are preset in the control module, the control module calculates an actual threshold value M2 and a threshold value M3 according to R0, M30 and M20 and an actual aperture R1 of the through hole, M2=aM20×R1/R0 and M3=bM30×R1