A press-fitting device for a gas-liquid booster cylinder with pressure monitoring

By adding pressure sensors and constructing a pressure closed-loop control system in the press-fitting equipment, and combining the power switching of pneumatic and hydraulic components, real-time monitoring and control of the press-fitting process are realized, solving the problems of press-fitting force fluctuation and poor consistency in traditional equipment, and improving production efficiency and product quality.

CN224575080UActive Publication Date: 2026-07-31DONGGUAN DIES HARDWARE PRODUCTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN DIES HARDWARE PRODUCTS CO LTD
Filing Date
2025-08-29
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

Traditional press-fitting equipment lacks pressure sensors, making it impossible to monitor the actual stress state of the workpiece in real time during the press-fitting process. This leads to abnormal fluctuations in press-fitting force, resulting in defective products. Furthermore, the lack of process monitoring results in poor product consistency, requiring manual sampling inspection, which increases production cycle and costs.

Method used

A high-precision pressure sensor is added to the pressing station to build a pressure closed-loop control system. The quality is intelligently determined by analyzing the characteristics of the pressure curve. Power switching is realized by combining pneumatic and hydraulic components to build a three-dimensional movement system, which monitors and feeds back the pressing force in real time and provides audible, optical and electronic early warning.

Benefits of technology

It achieves precision and controllability in pressing operations, reduces defect rates, ensures product consistency, reduces the need for manual sampling inspection, and improves production efficiency and quality control capabilities.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to a pneumatic-hydraulic booster cylinder press-fitting device with pressure monitoring, belonging to the field of press-fitting operations. The device includes: a press head system comprising a pneumatic component for long-distance drive and a hydraulic component for press-fitting operations, the bottom end of which applies downward pressure; a worktable providing a horizontal support surface, with a press-fitting station corresponding to the end of the press head system, and a pressure sensor at the press-fitting station; and a moving system including a vertical moving frame and a horizontal moving frame to achieve three-dimensional movement of the end of the press head system. A monitoring system is also provided on the outside of the moving system, collecting pressure sensor data to generate a pressure curve analysis diagram for each press-fitting process. This utility model, by installing a pressure sensor at the press-fitting station, can monitor pressure changes in real time during the press-fitting process, providing direct evidence for judging press-fitting quality and effectively identifying press-fitting abnormalities.
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Description

Technical Field

[0001] This utility model relates to the field of press-fitting operations, specifically to a press-fitting device with a gas-liquid booster cylinder and pressure monitoring. Background Technology

[0002] In the field of industrial automation, press-fitting operations place stringent requirements on the positioning accuracy and process controllability of equipment. Traditional press-fitting equipment often relies on a single power source, making it difficult to balance long-distance rapid movement with high-precision pressure output. While composite power press-fitting technology optimizes the process through "pneumatic rapid advance + hydraulic precision pressing," it suffers from significant technical defects due to the lack of pressure sensors. It can only rely on preset stroke or time to trigger power switching: it cannot sense the actual stress state of the workpiece during press-fitting. When there are assembly deviations or uneven material hardness in the workpiece, the press-fitting force is prone to abnormal fluctuations. The equipment still executes according to a fixed program, which can easily lead to over- or under-press-fitting, resulting in a large number of defective products. For example, excessive pressure during the press-fitting of cylinder head bolts in automobile engines can cause thread stripping. At the same time, the lack of process monitoring makes it difficult to detect minor jamming or determine whether the press-fitting force is up to standard, resulting in poor product consistency and the need for manual sampling inspection, which increases the production cycle and cost. In electronic component packaging, even minor pressure fluctuations can damage chips. Utility Model Content

[0003] To address the shortcomings of existing technologies, this invention provides a pneumatic-hydraulic booster cylinder press-fitting device with pressure monitoring. A high-precision pressure sensor is added to the press-fitting station to construct a closed-loop pressure control system, enabling real-time pressure feedback control. By analyzing pressure curve characteristics, the device intelligently determines quality, promptly alarms when abnormalities are detected, significantly reducing the defect rate, ensuring consistency between different batches of workpieces, and storing data to meet traceability requirements. This invention solves the problem of traditional equipment being unable to monitor and control press-fitting force in real time, demonstrating significant innovation and application value in the field of precision manufacturing.

[0004] The technical solution of this utility model is as follows: A press-fitting device for a gas-liquid booster cylinder with pressure monitoring, the device comprising: The pressure head system includes a pneumatic component for achieving long-distance drive and a hydraulic component for achieving press-fitting operations, wherein the bottom end of the pressure head system is used to apply downward pressure; Workbench: Used to provide a horizontal support surface, with a pressing station corresponding to the end of the pressing head system, and a pressure sensor is installed at the pressing station; The moving system includes a vertical moving frame and a horizontal moving frame. The bottom of the vertical moving frames on both sides is slidably connected to the worktable, and the two sides of the horizontal moving frame are slidably connected to the vertical moving frame. The pressing head system is slidably connected to the horizontal moving frame to realize three-dimensional movement of the end of the pressing head system. A monitoring system is also provided on the outside of the moving system. The monitoring system collects pressure sensor data to form a pressure curve analysis chart for each pressing process.

[0005] According to the above-described scheme, the gas-liquid booster cylinder press-fitting equipment with pressure monitoring achieves precision and controllability in press-fitting operations through the combination of a three-dimensional movement system and a pressure sensor. The pressure sensor can capture changes in force during the press-fitting process in real time. When abnormal fluctuations occur, it can promptly reflect whether the press-fitting is in place or if there is an abnormality, facilitating the rapid identification of unsuitable products. At the same time, the pressure data recorded by the sensor can be used to trace the press-fitting status of each batch of products. By summarizing and analyzing the data, the quality status of different batches can be clearly understood, effectively distinguishing between qualified and unqualified batches and reducing the outflow of defective products. The three-dimensional movement system allows the press head to move flexibly in three dimensions, easily adapting to the press-fitting requirements of different positions, improving the equipment's adaptability to diverse workpieces. Overall, it not only strengthens the control of press-fitting quality but also provides a reliable basis for production process traceability and batch management.

[0006] Specifically, the press-fitting station is equipped with mounting holes, and the pressure sensor is equipped with screw holes, which are locked and fixed by locking bolts.

[0007] Preferably, a vertical plate is provided on one side of the pressing station, and the height of the vertical plate covers the pressing station.

[0008] Preferably, the bottom of the vertical plate has fixed edges on both sides, and the fixed edges have through holes.

[0009] Preferably, the vertical moving frame includes guide columns, and the horizontal moving frame includes crossbeams.

[0010] Preferably, the monitoring system is equipped with a pressure monitoring panel. In this invention, the pressure monitoring panel and monitoring system monitor the pressure according to the set upper and lower limit standards, and can also be connected to other alarm elements to provide audible, visual, and electrical warnings when the pressure exceeds the range.

[0011] Preferably, a first positioning ring and a second positioning ring are provided above the vertical plate, and the first positioning ring and the second positioning ring are suspended above the pressing station and arranged around it.

[0012] Furthermore, the first positioning ring is equipped with a first displacement sensor that stands vertically above one side of the pressing station, the second positioning ring is equipped with a second displacement sensor, and a pressure sensor is installed on the pressing station. The press head system is driven by a pneumatic component to move above the pressing station and downward until it reaches the sensing height of the first displacement sensor and acquires the first sensing signal; based on the first sensing signal, the press head system is decelerated downward. The pressure head system reaches the upper side of the pressing station and triggers the second displacement sensor, switching to the hydraulic assembly; The installation is performed by pressing downwards using a hydraulic assembly, and the operation data is collected by a pressure sensor.

[0013] The present invention, implemented according to the above scheme, solves the problems of inaccurate power switching timing, difficulty in balancing pressing efficiency and accuracy, and insufficient adaptability to complex working conditions in the prior art by providing a pressing device that integrates precise positioning monitoring, intelligent power switching, and multi-parameter feedback. Through a "pneumatic deceleration fine-tuning + hydraulic switching control" mechanism, a precision control system integrating real-world three-dimensional monitoring, dynamic threshold triggering, and multi-sensor data fusion is constructed. The device deploys displacement sensors around the pressing station using a double-layer positioning ring, combined with visual guidance from a camera at the bottom of the pressing head, to achieve high-precision position monitoring of the entire pressing process. In the first stage, the system begins to decelerate below the first positioning ring. During the downward deceleration process, the camera is used to fine-tune the movement trajectory of the pressing head system. This collaborative control mechanism shortens the range of displacement error during power switching and fluctuations in pressing force, significantly reducing the single-cycle operation time and lowering the equipment failure rate. On the other hand, it can also achieve the following: through data fusion of the camera and sensors, the system can automatically identify the workpiece type and match preset parameters to achieve multi-product switching positioning. After passing the second positioning ring, the pressing head system smoothly switches to the hydraulic assembly to perform precision pressing operations, while the pressure sensor provides real-time feedback of pressing force data at a set sampling frequency.

[0014] Preferably, the positioning ring has a U-shaped structure.

[0015] Preferably, the pressing station includes an upper protrusion that extends upward to the inner side of the second positioning ring.

[0016] Preferably, the pneumatic component includes a stroke cylinder, and the hydraulic component includes a stroke cylinder. The stroke cylinder and the stroke cylinder are movably connected to the pressure head system on one side and to the horizontal moving frame on the other side.

[0017] The advantages of this utility model based on the above solution are as follows: By installing pressure sensors at the pressing station, pressure changes during the pressing process can be monitored in real time, providing direct evidence for judging pressing quality and effectively identifying pressing abnormalities. Pneumatic components enable long-distance, rapid drive of the pressing head system, combined with hydraulic components to complete high-precision pressing operations, balancing work efficiency and pressing accuracy. The moving system, through the sliding cooperation of the vertical and horizontal moving frames, achieves three-dimensional movement of the pressing head system's end, significantly improving the equipment's adaptability to workpieces of different specifications and positions. The overall structure is compact and flexible in operation, meeting the needs of diverse pressing scenarios. Attached Figure Description

[0018] Figure 1 This is a front view structural diagram of the present invention.

[0019] Figure 2 This is a front view structural diagram of the pressing station and vertical plate of this utility model.

[0020] Figure 3 This is a three-dimensional structural diagram of the pressing station and vertical plate of this utility model.

[0021] In the diagram, 100 is the pressure head system; 110 is the pneumatic assembly; 120 is the hydraulic assembly; 200 is the worktable; 210 is the pressing station; 220 is the first positioning ring; 230 is the second positioning ring; 240 is the vertical plate; 250 is the fixed edge; 260 is the reinforcing rib; 300 is the moving system; 310 is the horizontal moving frame; 320 is the vertical moving frame; and 400 is the monitoring system. Detailed Implementation

[0022] To better understand the purpose, technical solution, and technical effects of this utility model, the following description, in conjunction with the accompanying drawings and embodiments, will provide further explanation. It should be noted that similar reference numerals and letters in the following drawings indicate similar items; therefore, once an item is defined in one drawing, it does not need further definition and explanation in subsequent drawings. It is also stated that the embodiments described below are only for explaining this utility model and are not intended to limit it.

[0023] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is referred to as "connected to" another component, it can be directly connected to the other component or there may be an intermediate component.

[0024] The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product is usually placed when in use, or the orientation or positional relationship in which a person skilled in the art would normally understand it, or the orientation or positional relationship in which the product is usually placed when in use. It is only for the purpose of facilitating the description of this application and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Example 1

[0025] like Figure 1-3 As shown, a gas-liquid booster cylinder press-fitting device with pressure monitoring is provided, the device comprising: The pressure head system 100 includes a pneumatic assembly 110 for long-distance drive and a hydraulic assembly 120 for press-fitting operations. The bottom end of the pressure head system 100 is used to apply downward pressure. Workbench 200: Used to provide a horizontal support surface, and has a pressing station 210 corresponding to the end of the pressing head system 100. The pressing station 210 is equipped with a pressure sensor. The pressing station 210 is equipped with a mounting hole, and the pressure sensor is equipped with a screw hole and is locked and fixed by a locking bolt. The moving system 300 includes a vertical moving frame 320 and a horizontal moving frame 310. The bottom of the vertical moving frame 320 on both sides is slidably connected to the worktable 200. The two sides of the horizontal moving frame 310 are slidably connected to the vertical moving frame 320. The pressure head system 100 is slidably connected to the horizontal moving frame 310 to realize the three-dimensional movement of the end of the pressure head system 100. The mobile system 300 is also equipped with a monitoring system 400 on its outer side. The monitoring system 400 collects pressure sensor data to generate a pressure curve analysis chart for each pressing process.

[0026] According to the above-described scheme, the gas-liquid booster cylinder pressing equipment with pressure monitoring achieves precision and controllability in pressing operations through the combination of a three-dimensional movement system 300 and a pressure sensor. The pressure sensor can capture the force changes during the pressing process in real time. When abnormal fluctuations occur, it can promptly reflect whether the pressing is in place or if there is an abnormality, facilitating the rapid identification of unsuitable products. At the same time, the pressure data recorded by the sensor can be used to trace the pressing status of each batch of products. By summarizing and analyzing the data, the quality status of different batches can be clearly understood, effectively distinguishing between qualified and unqualified batches and reducing the outflow of defective products. The three-dimensional movement system 300 allows the pressing head to move flexibly in three dimensions, easily adapting to the pressing needs of different positions, improving the equipment's adaptability to diverse workpieces. Overall, it not only strengthens the control of pressing quality but also provides a reliable basis for production process traceability and batch management.

[0027] Preferably, a vertical plate 240 is provided on one side of the pressing station 210, the vertical plate 240 covers the pressing station 210 in height, and a reinforcing rib 260 is provided on the other side of the vertical plate 240 away from the pressing station 210 to improve the positioning strength of the vertical plate 240.

[0028] Preferably, the bottom sides of the vertical plate 240 are provided with fixed edges 250, and the fixed edges 250 are provided with through holes.

[0029] Preferably, the vertical moving frame 320 includes guide columns, and the horizontal moving frame 310 includes crossbeams.

[0030] Preferably, the monitoring system 400 is equipped with a pressure monitoring panel. In this invention, the pressure monitoring panel and the monitoring system 400 monitor the pressure according to the set upper and lower limit standards, and can also be connected to other alarm elements to provide audible, visual, and electrical warnings when the pressure exceeds the range.

[0031] Preferably, a first positioning ring 220 and a second positioning ring 230 are provided above the vertical plate 240, and the first positioning ring 220 and the second positioning ring 230 are suspended above the pressing station 210 and arranged around it.

[0032] Preferably, a camera is provided on one side of the end of the pressure head system 100.

[0033] Furthermore, the first positioning ring 220 is provided with a first displacement sensor that stands upright above one side of the pressing station 210, the second positioning ring 230 is provided with a second displacement sensor, and a pressure sensor is installed on the pressing station 210. The pneumatic component 110 drives the pressure head system 100 above the pressing station 210 and moves it downward until it reaches the sensing height of the first displacement sensor and acquires the first sensing signal; based on the first sensing signal, the pressure head system 100 decelerates downward. The pressure head system 100 reaches the upper side of the pressing station 210 and triggers the second displacement sensor to switch to the hydraulic assembly 120; The hydraulic assembly 120 performs downward pressing operations, and the pressure sensor collects operation data.

[0034] According to the above-described scheme, this utility model solves the problems of inaccurate power switching timing, difficulty in balancing pressing efficiency and accuracy, and insufficient adaptability to complex working conditions in existing technologies by providing a pressing device that integrates precise positioning monitoring, intelligent power switching, and multi-parameter feedback. Through a "pneumatic deceleration fine-tuning + hydraulic switching control" mechanism, a precision control system integrating real-world three-dimensional monitoring, dynamic threshold triggering, and multi-sensor data fusion is constructed. The device deploys displacement sensors around the pressing station 210 via a double-layer positioning ring, combined with visual guidance from a camera at the bottom of the pressing head, to achieve high-precision position monitoring of the entire pressing process. In the first stage, the... The system begins to decelerate below the first positioning ring 220. During the downward deceleration process, the camera is used to fine-tune the movement trajectory of the pressing head system 100. This collaborative control mechanism shortens the range of power switching displacement error and pressing force fluctuation, significantly reducing the single-cycle operation time and lowering the equipment failure rate. On the other hand, it can also achieve the following: through data fusion of the camera and sensor, the system can automatically identify the workpiece type and match preset parameters to achieve multi-product switching positioning. After passing the second positioning ring 230, the pressing head system 100 smoothly switches to the hydraulic assembly 120 to perform fine pressing operations. At the same time, the pressure sensor provides real-time feedback of pressing force data at the set sampling frequency.

[0035] Preferably, the positioning ring has a U-shaped structure.

[0036] like Figure 2 , 3 As shown, preferably, the pressing station 210 includes an upper protrusion that extends upward to the inner side of the second positioning ring 230.

[0037] Preferably, the pneumatic assembly 110 includes a stroke cylinder, and the hydraulic assembly 120 includes a stroke cylinder. The stroke cylinder and the stroke cylinder are movably connected to the pressure head system 100 on one side and to the horizontal moving frame on the other side.

[0038] The advantages of this utility model based on the above solution are as follows: By installing a pressure sensor at the pressing station 210, pressure changes during the pressing process can be monitored in real time, providing a direct basis for judging the pressing quality and effectively identifying pressing abnormalities. The pneumatic component 110 enables long-distance rapid drive of the pressing head system 100, and the hydraulic component 120 completes high-precision pressing operations, balancing work efficiency and pressing accuracy. The moving system 300 achieves three-dimensional movement of the end of the pressing head system 100 through the sliding cooperation of the vertical moving frame 320 and the horizontal moving frame 310, greatly improving the adaptability of the equipment to workpieces of different specifications and positions. The overall structure is compact and the operation is flexible, meeting the needs of diverse pressing scenarios.

[0039] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0040] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A gas-liquid intensifier cylinder press-fitting apparatus with pressure monitoring, characterized by, The device includes: The pressure head system includes a pneumatic component for achieving long-distance drive and a hydraulic component for achieving press-fitting operations, wherein the bottom end of the pressure head system is used to apply downward pressure; Workbench: Used to provide a horizontal support surface, with a pressing station corresponding to the end of the pressing head system, and a pressure sensor is installed at the pressing station; The moving system includes a vertical moving frame and a horizontal moving frame to realize three-dimensional movement of the end of the pressing head system. A monitoring system is also provided on the outside of the moving system. The monitoring system collects pressure sensor data to generate a pressure curve analysis chart for each pressing process.

2. The gas-hydraulic intensifier pressurization equipment with pressure monitoring according to claim 1, characterized in that, A vertical plate is installed on one side of the pressing station, and the height of the vertical plate covers the pressing station.

3. The gas-hydraulic intensifier pressurization equipment with pressure monitoring according to claim 2, characterized in that, The bottom of the vertical plate has fixed edges on both sides, and the fixed edges have through holes.

4. The gas-hydraulic intensifier pressurization equipment with pressure monitoring according to claim 2, characterized in that, The vertical moving frame includes guide columns, and the horizontal moving frame includes crossbeams.

5. The gas-hydraulic intensifier pressurization equipment with pressure monitoring according to claim 4, characterized in that, The monitoring system is equipped with a pressure monitoring panel.

6. The gas-hydraulic intensifier pressurization equipment with pressure monitoring according to claim 2, characterized in that, A first positioning ring and a second positioning ring are provided above the vertical plate. The first positioning ring and the second positioning ring are suspended above the pressing station and arranged around it.

7. The gas-hydraulic intensifier pressurization equipment with pressure monitoring according to claim 6, characterized in that, The first positioning ring is equipped with a first displacement sensor that stands vertically above one side of the pressing station, the second positioning ring is equipped with a second displacement sensor, and a pressure sensor is installed on the pressing station. The press head system is driven by a pneumatic component to move above the pressing station and downward until it reaches the sensing height of the first displacement sensor and acquires the first sensing signal; based on the first sensing signal, the press head system is decelerated downward. The pressure head system reaches the upper side of the pressing station and triggers the second displacement sensor, switching to the hydraulic assembly; The installation is performed by pressing downwards using a hydraulic assembly, and the operation data is collected by a pressure sensor.

8. The gas-hydraulic intensifier pressurization equipment with pressure monitoring according to claim 7, characterized in that, The positioning ring has a U-shaped structure.

9. The pressurized gas-hydraulic cylinder press mounting apparatus with pressure monitoring according to any one of claims 6-8, characterized in that, The press-fitting station includes an upper protrusion that extends upward to the inner side of the second positioning ring.