A sealed assembly detection device

Abstract

This utility model discloses a sealing assembly testing device, which is mounted on the frame of a piston rod tightening machine and located above the piston rod clamping device of the piston rod tightening machine. It is used to test whether the sealing assembly pre-installed on the piston rod is accurate and in place. The sealing assembly testing device includes at least two testing components. Each testing component includes a third assembly column a and a third detector a mounted on the third assembly column a. The third detector a includes a third detection head a and a third detection seat a for mounting and supporting the third detection head a. The third detection seat a is fitted onto the third assembly column a and its height and angle can be adjusted along the third assembly column a. The beneficial effects of this utility model are: through the adjustable modular testing component design, this utility model achieves flexibility, accuracy, and versatility in sealing assembly testing, effectively solving the problems of poor adaptability and numerous blind spots in existing testing devices.

Description

Technical Field

[0001] This utility model relates to the field of automated production equipment technology, and in particular to a sealing assembly testing device. Background Technology

[0002] In the assembly process of hydraulic or pneumatic equipment, ensuring the proper assembly of the piston rod and sealing assembly is crucial for guaranteeing the equipment's sealing performance. To ensure sealing performance, the accuracy and proper placement of the pre-installed sealing assembly must be checked during the piston rod tightening machine assembly process to avoid problems such as leakage and equipment failure caused by seal misalignment, displacement, or incomplete insertion into the mounting groove.

[0003] Currently, existing technologies for inspecting piston rod sealing assemblies suffer from the following shortcomings: First, traditional inspection methods rely heavily on manual visual inspection, which is affected by operator experience and fatigue, resulting in low inspection efficiency and a high error rate, making it difficult to meet the high precision and efficiency requirements of automated production lines. Second, some automated inspection devices use fixed-position sensor structures, which can only be adapted to specific specifications of piston rods or sealing assemblies. When changing product models, the sensors need to be disassembled and reassembled or the equipment adjusted, resulting in poor versatility and high replacement costs. Third, some devices only have single-sided inspection components, making it impossible to simultaneously inspect multiple circumferential positions of the sealing assembly. This can easily lead to missed detections due to local misalignment of the sealing component, resulting in insufficient comprehensiveness of the inspection. Fourth, the sensor installation structure of some inspection devices is complex, and the adjustment operation is cumbersome, making it difficult to quickly match the target inspection positions (such as height and angle) of different sealing components, affecting the continuous operation efficiency of the production line.

[0004] Therefore, it is necessary to develop a sealing assembly testing device. After searching, no technical solution identical to this utility model was found. Utility Model Content

[0005] The main technical problem solved by this utility model is to provide a sealing assembly detection device, thereby solving one or more of the above-mentioned prior art problems.

[0006] To solve the above-mentioned technical problems, the present invention adopts a technical solution as follows: a sealing assembly detection device, which is installed on the frame of a piston rod tightening machine and located above the piston rod clamping device of the piston rod tightening machine, for detecting whether the sealing assembly pre-installed on the piston rod is accurate and in place. Its innovation lies in that: the sealing assembly detection device includes at least two detection components, each including a third assembly column a and a third detector a mounted on the third assembly column a; the third detector a includes a third detection head a and a third detection seat a for mounting and supporting the third detection head a, the third detection seat a being fitted onto the third assembly column a and adjustable in height and angle along the third assembly column a.

[0007] In some implementations, the number of detection components is 2-4.

[0008] In some embodiments, the third detection seat a is fitted onto the third assembly column a by fastening bolts, the fastening bolts being adjustable to lock the height and angle of the third detection seat a.

[0009] In some embodiments, the third detection seat a is provided with a third assembly hole a for mounting the third assembly post a. The third assembly hole a is a through hole that is clearance-fitted with the third assembly post a, and the hole diameter is larger than the outer diameter of the third assembly post a.

[0010] In some embodiments, the front edge of the third detection seat a is provided with a third support plate a for supporting the third detection head a. The third support plate a is an L-shaped plate, one end of which is fixedly connected to the third detection seat a, and the other end forms a horizontal support surface for mounting the third detection head a.

[0011] In some implementations, the third detection head a is a photoelectric sensor or a contact displacement sensor.

[0012] The beneficial effects of this utility model are: through the design of adjustable modular detection components, this utility model realizes the flexibility, accuracy and versatility of sealing assembly detection, and effectively solves the problems of poor adaptability and many blind spots in existing detection devices. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0014] Figure 1 This is a schematic diagram of the structure of a sealing assembly testing device according to the present invention.

[0015] Figure 2 This is a front view of a sealing assembly testing device according to this utility model. Detailed Implementation

[0016] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0017] like Figure 1 and Figure 2 As shown, the present invention includes: a sealing assembly detection device installed on the frame of a piston rod tightening machine, and located directly above the piston rod clamping device of the piston rod tightening machine; after the piston rod is fixed by the piston rod clamping device, the detection device can detect whether the installation position, height and circumferential distribution of the sealing assemblies (such as O-rings, sealing rings, etc.) pre-installed on the piston rod are accurately in place.

[0018] In this embodiment, the detection device includes two detection components (which can be expanded to three or four according to actual needs), symmetrically distributed on both sides of the piston rod; each detection component consists of a third assembly column a310 and a third detector a:

[0019] The third assembly column a310 is a cylindrical rod that is vertically fixed on the frame. Its height is determined according to the overall structural design of the piston rod tightening machine. The upper end is fixedly connected to the frame, and the lower end extends suspended above the piston rod clamping device.

[0020] The third detector a consists of a third detection head a330 and a third detection seat a320, wherein the third detection seat a320 is connected to the third assembly column a310 by a fitting.

[0021] The third detection seat a320 is a block structure made of metal, with a third assembly hole a321 in its center (the hole diameter is slightly larger than the outer diameter of the third assembly column a310, forming a clearance fit). It is slidably connected by being fitted onto the third assembly column a310. A fastening bolt is installed through the side of the third detection seat a320. When it is necessary to adjust the height or angle, the fastening bolt is loosened, and the third detection seat a320 can slide up and down along the third assembly column a310 (adjusting the height) or rotate around the third assembly column a310 (adjusting the angle). After adjustment, tightening the fastening bolt will lock the position.

[0022] The advantage of this structure is that, through flexible adjustment of height and angle, it can be adapted to sealing assemblies of different specifications and installation positions, significantly improving the versatility of the testing device.

[0023] The front edge of the third detection seat a320 (i.e., the side facing the piston rod) is provided with a third support plate a322. The support plate is an L-shaped plate: its vertical end is locked and fixed to the side screw of the third detection seat a320, and its horizontal end extends upward to form a horizontal support surface for mounting the third detection head a330. The third detection head a330 can be a photoelectric sensor (such as a laser through-beam sensor) or a contact displacement sensor (such as a spring stylus sensor), depending on the detection requirements of the sealing assembly (such as non-contact ranging or contact position verification).

[0024] The design of the L-shaped third support plate a322 extends the detection end of the third detection head a330 towards the piston rod, avoiding a detection blind zone caused by an excessively large gap between the third assembly column a310 and the piston rod. At the same time, the horizontal support surface provides a stable mounting base for the detection head, ensuring that the detection head does not easily shake during the detection process and improving detection accuracy.

[0025] The workflow of this technical solution is as follows: After the piston rod is fixed by the piston rod clamping device, the height and angle of the third detection seat a320 in each detection component are first adjusted according to the specifications of the sealing assembly (such as diameter and installation height) so that the detection end of the third detection head a330 is aligned with the target detection position of the sealing assembly (such as the upper edge or circumferential edge of the seal); then the detection device is started, and each detection head synchronously collects the position signal of the sealing assembly (such as photoelectric sensors feeding back distance through light signals, and contact sensors feeding back position deviation through displacement), and transmits the signal to the control system of the piston rod tightening machine; the control system analyzes multiple sets of detection signals to determine whether the sealing assembly is installed accurately (such as whether the position deviation of each detection point is within the allowable range), and if it is not qualified, an alarm or shutdown prompt is triggered.

[0026] The advantages of this technical solution are:

[0027] High adaptability: The height and angle adjustment function of the third detection seat A320 can accommodate the detection needs of different models of piston rods and sealing assemblies, reducing equipment replacement costs;

[0028] High comprehensiveness of detection: The symmetrical arrangement of at least two detection components allows for simultaneous detection of multiple circumferential positions of the sealing assembly, avoiding the risk of missed detection caused by single-sided detection;

[0029] Simple and reliable structure: The adjustment method with bolt fastening is convenient to operate and has high stability after locking; the L-shaped support plate provides reliable support for the detection head and ensures detection accuracy during long-term use;

[0030] Good compatibility: The detection head can be equipped with photoelectric or contact sensors as needed to adapt to the detection scenarios of different types of sealing assemblies (e.g., transparent seals require photoelectric detection, while hard seals can be detected by contact).

[0031] In summary, this utility model, through its adjustable modular detection component design, achieves flexibility, accuracy, and versatility in the detection of sealed assemblies, effectively solving the problems of poor adaptability and numerous blind spots in existing detection devices.

[0032] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made using the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A sealing assembly testing device, mounted on the frame of a piston rod tightening machine and located above the piston rod clamping device of the piston rod tightening machine, for detecting whether the sealing assembly pre-installed on the piston rod is accurate and in place, characterized in that: The sealing assembly detection device includes at least two detection components. The detection components include a third assembly column a (310) and a third detector a mounted on the third assembly column a (310). The third detector a includes a third detection head a (330) and a third detection seat a (320) for mounting and supporting the third detection head a (330). The third detection seat a (320) is fitted onto the third assembly column a (310) and its height and angle can be adjusted along the third assembly column a (310).

2. The sealing assembly testing device according to claim 1, characterized in that: The number of detection components is 2-4.

3. The sealing assembly testing device according to claim 1, characterized in that: The third detection seat a (320) is fitted onto the third assembly column a (310) by fastening bolts. The fastening bolts can be adjusted to lock the height and angle of the third detection seat a (320).

4. The sealing assembly testing device according to claim 1, characterized in that: The third detection seat a (320) is provided with a third assembly hole a (321) for fitting the third assembly column a (310). The third assembly hole a (321) is a through hole that is clearance-fitted with the third assembly column a (310), and the hole diameter is larger than the outer diameter of the third assembly column a (310).

5. The sealing assembly testing device according to claim 1, characterized in that: The front edge of the third detection seat a (320) is provided with a third support plate a (322) for supporting the third detection head a (330). The third support plate a (322) is an L-shaped plate, one end of which is fixedly connected to the third detection seat a (320), and the other end forms a horizontal support surface for mounting the third detection head a (330).

6. The sealing assembly testing device according to claim 1, characterized in that: The third detection head a (330) is a photoelectric sensor or a contact displacement sensor.

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