CN-121989015-A - Press mounting device for plugging plugs at tail ends of automobile lubrication oil way holes

Abstract

The invention discloses a press-fitting device for plugging plugs at tail ends of holes of automobile lubricating oil ways, which relates to the technical field of press-fitting devices and is characterized by comprising a workbench, two groups of press-fitting mechanisms, a movable glue outlet mechanism, a precise glue dispensing valve, a glue dispensing rotating mechanism, an electric turntable, a force sensor and a displacement sensor, wherein the workbench is provided with a linear slide rail and a clamp base, the press-fitting mechanisms comprise servo electric cylinders, guide shaft sleeve assemblies and pressure head modules which are symmetrically arranged and are used for pressing plugs, the movable glue outlet mechanism is arranged on the linear slide rail, the tail ends of the movable glue outlet mechanism are provided with precise glue dispensing valves and are used for gluing, the glue dispensing rotating mechanism comprises an electric turntable embedded in the clamp base, the movable part at the top of the electric turntable is fixedly connected with a rotating clamp and is used for clamping a workpiece and driving the workpiece to rotate at a uniform speed around an axis, and the force sensor and the displacement sensor are used for collecting press-fitting force and monitoring strokes in real time during press-fitting and controlling the press-fitting and can be used for implementing press fitting in a small space.

Inventors

• QIU JIRONG
• WANG CHANGWEN

Assignees

• 南京云海轻金属精密制造有限公司

Dates

Publication Date

20260508

Application Date

20260130

Claims (6)

1. 1. The press-fitting device for the end plugging plug of the automobile lubrication oil way hole is characterized by comprising a workbench (1), a press-fitting mechanism, a movable glue discharging mechanism, a glue dispensing rotating mechanism, a force sensor (201) and a displacement sensor (202), wherein the components are cooperatively controlled by an industrial personal computer (203); a linear slide rail (301) and a clamp base are arranged on the workbench (1); The pressing mechanism is provided with two groups which are symmetrically arranged at two sides of the workbench (1), and each group of pressing mechanism comprises a servo electric cylinder (401), a guide shaft sleeve assembly (402) and a pressing head module (403) and is used for executing plug pressing action; The movable glue discharging mechanism is arranged on the linear slide rail (301), and the tail end of the movable glue discharging mechanism is provided with a precise glue dispensing valve (5) for gluing the periphery of the plug; The dispensing rotating mechanism comprises an electric turntable (601) embedded in a clamp base, wherein a rotating clamp (602) is fixedly connected to the top movable part of the electric turntable (601), and the rotating clamp (602) is used for clamping a workpiece; in the press fitting process, the force sensor (201) collects press fitting force in real time, the displacement sensor (202) monitors the stroke synchronously, and the force sensor (201) and the displacement sensor (202) perform feedback control through the industrial personal computer (203).
2. 2. The press-fitting device of the end plug of the automobile lubrication oil passage hole according to claim 1, wherein a positioning stop block is further arranged on the workbench (1), and the positioning stop block is arranged on one side of the clamp base and is used for positioning the initial position of a workpiece placed on the rotary clamp (602).
3. 3. The press-fitting device of the end plug of the automobile lubrication oil passage hole according to claim 1, wherein a buffer spring is arranged between a servo electric cylinder (401) and a guide shaft sleeve assembly (402) of each group of press-fitting mechanisms, the buffer spring is sleeved outside the guide shaft sleeve assembly (402), one end of the buffer spring is connected with the end part of a piston rod of the servo electric cylinder (401), and the other end of the buffer spring is connected with the fixed end of the guide shaft sleeve assembly (402).
4. 4. The press-fitting device of the end plugging plug of the automobile lubrication oil way hole according to claim 1, wherein the movable glue outlet mechanism is provided with a height adjusting device, the height adjusting device comprises an adjusting screw and an adjusting nut, the adjusting screw is vertically arranged on the main body of the movable glue outlet mechanism, the adjusting nut is in threaded fit with the adjusting screw, and the precise glue dispensing valve (5) is connected with the adjusting nut through a connecting piece.
5. 5. The press-fitting device of the plugging plug at the tail end of the automobile lubrication oil hole according to claim 1, wherein an elastic clamping piece is arranged on the rotary clamp (602), the elastic clamping piece is arc-shaped, a plurality of elastic clamping pieces are uniformly distributed on a clamping surface of the rotary clamp (602), one end of each elastic clamping piece is fixedly connected with the rotary clamp (602), and the other end of each elastic clamping piece is a free end.
6. 6. The press-fitting device of the plugging plug for the tail end of the automobile lubrication oil hole according to claim 1, wherein the force sensor (201) and the displacement sensor (202) are respectively fixed on the workbench (1) through sensor mounting brackets.

Description

Press mounting device for plugging plugs at tail ends of automobile lubrication oil way holes Technical Field The invention relates to the technical field of press-fitting devices, in particular to a press-fitting device for plugging plugs at tail ends of holes of lubricating oil passages of automobiles. Background In the field of automobile manufacturing, the manufacturing process of die castings such as automobile engine housings, transmission housings and the like is of great importance. The sealing treatment of the tail end of the cooling water path or the lubricating oil path is a key link, and the purpose of the sealing treatment is to prevent liquid leakage and ensure the normal operation of the engine, the gearbox and other parts. In the traditional process, a 'pull-expansion' plug mounting mode is often adopted to realize sealing, namely, a special pull-expansion tool is used for pulling the metal plug into the hole and expanding the outer diameter of the metal plug, so that the metal plug is tightly attached to the hole wall, and the sealing effect is achieved. However, the "pull-up" plug installation process exposes a number of significant limitations in practical applications. In the aspect of space adaptability, a certain space is required for the operation of the pulling and expanding gun, and an operation space with the minimum clearance diameter larger than phi 24mm is required to be reserved around the plug. However, in the case of the actual product design, the partial hole edge is only 2.2mm from the adjacent plane, which makes the tensioning tool completely impossible to carry out. In the aspect of precision control, deformation or damage is easily caused to a product in the pulling and expanding process, the requirement of high-precision assembly is difficult to meet, and the quality and performance of the product are affected. In addition, the process has low automation degree, depends on manual operation, has low efficiency and poor quality consistency, can not realize the whole process data tracing, and does not meet the strict requirements of automobile quality management systems such as IATF, 16949 and the like. Meanwhile, the process lacks an automatic gluing system, pressure closed-loop control, two-dimensional code identification and data tracing functions and an abnormality alarm mechanism, and cannot meet the high standard requirements of modern automobile manufacturing. At present, although some automatic press-fitting devices exist in the market, and the function of assembling the plug is partially realized, a series of problems generally exist in the devices. For example, a direct push type press mounting mode is adopted, an intelligent detection function is lacked, problems in the assembly process cannot be found in time, an online gluing system is lacked, sealing reliability is difficult to ensure, a data tracing function is not integrated, quality management and problem tracing are not facilitated, pressure control is open-loop control, accuracy is difficult to ensure, and the assembly requirement of a compact-structure product cannot be met due to poor performance in the aspect of tiny space adaptability. Up to the present, no complete solution capable of simultaneously solving the requirements of small space press fitting, automatic gluing, error proofing and leakage proofing, data tracing and the like exists in the market, and the complete solution becomes a technical problem to be overcome in the automobile manufacturing industry. Disclosure of Invention In order to solve at least one of the above technical problems, the present invention aims to provide a press-fitting device for plugging a plug at the end of an automobile lubrication oil passage hole, which can be press-fitted in a small space. In order to achieve the above purpose, the present invention provides the following technical solutions: A press-fitting device for plugging plugs at tail ends of holes of automobile lubrication oil ways comprises a workbench, a press-fitting mechanism, a movable glue discharging mechanism, a glue dispensing rotating mechanism, a force sensor and a displacement sensor, wherein the components are cooperatively controlled by an industrial personal computer; the workbench is provided with a linear slide rail and a clamp base; The pressing mechanism is provided with two groups which are symmetrically arranged at two sides of the workbench, and each group of pressing mechanism comprises a servo electric cylinder, a guide shaft sleeve assembly and a pressure head module and is used for executing plug pressing action; The movable glue discharging mechanism is arranged on the linear slide rail, and the tail end of the movable glue discharging mechanism is provided with a precise glue dispensing valve for gluing the periphery of the plug; the dispensing rotating mechanism comprises an electric turntable embedded in the clamp base, wherein a rotating clamp is fixedly connected to the