Measuring device for shock absorber inner tube production

By designing a measuring device with a geared motor drive, the problem of low measurement efficiency in the mass production of shock absorber inner tubes was solved, enabling fast and accurate acquisition of outer diameter data. It is suitable for flexible measurement of inner tubes of different specifications, reducing equipment replacement frequency and cost.

CN224416064UActive Publication Date: 2026-06-26WORKERSBEE ELECTRONICS TECH HLDG SUZHOU CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WORKERSBEE ELECTRONICS TECH HLDG SUZHOU CO LTD
Filing Date
2025-06-19
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Existing technologies are inefficient in mass production of shock absorber inner tubes, failing to quickly obtain accurate outer diameter data and thus unable to meet the rapid testing requirements of large-scale production.

Method used

A measuring device comprising a base, mounting bracket, lifting assembly, and measuring assembly is designed. It utilizes a geared motor to drive a lead screw and a moving platform, combined with a displacement sensor and spring structure, to achieve rapid contact of the measuring plate with the surface of the inner tube to obtain outer diameter data. The height of the measuring plate can be adjusted by the motor to adapt to inner tubes of different specifications.

Benefits of technology

It significantly improves measurement efficiency, simplifies operation procedures, is suitable for rapid testing in mass production scenarios, and reduces equipment replacement frequency and costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of damper inner tube, and disclose a kind of measuring device for damper inner tube production, including base, the top of base is fixedly connected with mounting bracket, and the outer wall of mounting bracket is provided with control display.The measuring device for damper inner tube production is provided with through-hole, pull rod, measuring plate, displacement sensor, mounting cylinder, sliding slot, spring, sliding block and long rod, and the operator makes measuring plate move up by single hand pulling pull rod, and the other hand places damper inner tube on base, then loosens pull rod, and measuring plate can be quickly moved down and adhere to inner tube surface under the spring reset effect, and the outer diameter data is accurately obtained by displacement sensor, the device greatly simplifies measurement process, significantly improves measurement efficiency, is especially suitable for the rapid detection in damper inner tube batch production scene, effectively solves the problem of long time consumption and low efficiency of prior art, so that operator can quickly obtain accurate outer diameter data.
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Description

Technical Field

[0001] This utility model relates to the field of shock absorber inner tube production technology, specifically a measuring device for shock absorber inner tube production. Background Technology

[0002] In the production process of shock absorbers, the dimensional accuracy of the inner tube of the shock absorber plays a key role in the performance of the shock absorber. The outer diameter and other parameters of the inner tube of the shock absorber must be strictly controlled within the specified tolerance range, otherwise it will affect the shock absorption effect, service life and assembly accuracy with other components.

[0003] The prior art patent document CN220153432U provides a PCCP pipe diameter measuring device, which uses a rotating shaft to drive a moving block for clamping and measurement, eliminating the need for manual measurement with a ruler, avoiding errors caused by the ruler deviating from the center, and making the obtained data more accurate.

[0004] While the aforementioned existing technology can measure tubular workpieces, in the scenario of mass production of shock absorber inner tubes, due to the large number of shock absorber inner tubes on the production line, the device requires multiple complex operating steps to complete a measurement in actual operation, which is time-consuming and inefficient. This makes it difficult for operators to quickly obtain the outer diameter data of the shock absorber inner tubes, and cannot meet the needs of rapid testing in large-scale production. Therefore, we need a measuring device for the production of shock absorber inner tubes. Utility Model Content

[0005] The purpose of this invention is to provide a measuring device for the production of shock absorber inner tubes, so as to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a measuring device for the production of shock absorber inner tubes, including a base, a mounting frame fixedly connected to the top of the base, a control display provided on the outer wall of the mounting frame, an installation groove provided on the inner wall of the mounting frame, and a lifting component provided on the outer wall of the mounting frame.

[0007] The lifting assembly includes a geared motor, and the output shaft of the geared motor is fixedly connected to a lead screw via a coupling. A moving platform is threadedly connected to the outer wall of the lead screw, and a guide block is fixedly connected to the outer wall of the moving platform. A guide groove is provided on the inner wall of the mounting groove, and a measuring component is provided on the outer wall of the moving platform.

[0008] The measuring component includes a through hole, and a pull rod is slidably connected to the inner wall of the through hole. One end of the pull rod is fixedly connected to a measuring plate by bolts, and a displacement sensor is provided on the inner wall of the measuring plate. An installation cylinder is fixedly connected to the inner wall of the moving platform, and a sliding groove is opened on the inner wall of the installation cylinder. A spring is provided on the inner wall of the sliding groove, and a slider is slidably connected to the inner wall of the sliding groove. A long rod is fixedly connected to the outer wall of the slider.

[0009] Preferably, the geared motor forms a moving structure with the moving platform via a lead screw, and one end of the lead screw is threaded through the moving platform.

[0010] Preferably, one end of the guide block extends into the guide groove, and the outer wall of the guide block is in contact with the inner wall of the guide groove.

[0011] Preferably, one end of the pull rod is connected to the measuring plate through a through hole.

[0012] Preferably, there are two mounting cylinders, and the two mounting cylinders are symmetrically arranged on the mobile platform.

[0013] Preferably, the mounting cylinder forms a sliding structure with the slider via a groove, and the inner wall of the groove is in contact with the outer wall of the slider.

[0014] Preferably, one end of the long rod passes through the mounting cylinder and is connected to the measuring plate.

[0015] Compared with the prior art, the beneficial effects achieved by this utility model are:

[0016] First, this utility model includes a through hole, a pull rod, a measuring plate, a displacement sensor, a mounting cylinder, a slide groove, a spring, a slider, and a long rod. The operator pulls the pull rod with one hand to raise the measuring plate, while placing the inner tube of the shock absorber on the base with the other hand. Then, the operator releases the pull rod, and the measuring plate quickly moves down to fit the surface of the inner tube under the spring's reset action. The outer diameter data is accurately obtained through the displacement sensor. This device greatly simplifies the measurement process and significantly improves measurement efficiency. It is particularly suitable for rapid testing in mass production scenarios of shock absorber inner tubes, effectively solving the problems of long time consumption and low efficiency in existing technologies, enabling operators to quickly obtain accurate outer diameter data.

[0017] Secondly, this utility model is equipped with a geared motor, a lead screw, a moving platform, a guide block, and a guide groove. The geared motor drives the lead screw to rotate, causing the moving platform to move up or down, thereby flexibly adjusting the height of the measuring plate. This makes it easy to adapt to the inner tubes of shock absorbers with different outer diameters, expanding the applicability of the device and avoiding the need for companies to frequently replace measuring equipment due to different product specifications, thus reducing equipment procurement and usage costs. Attached Figure Description

[0018] Figure 1This is a schematic diagram of the main structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the base and mounting frame structure of this utility model;

[0020] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0021] Figure 4 This is a schematic diagram of the mobile platform and tie rod structure of this utility model.

[0022] The components include: 1. Base; 2. Mounting bracket; 3. Control display; 4. Mounting slot; 5. Lifting assembly; 501. Gear motor; 502. Lead screw; 503. Moving platform; 504. Guide block; 505. Guide groove; 6. Measuring assembly; 601. Through hole; 602. Tie rod; 603. Measuring plate; 604. Displacement sensor; 605. Mounting cylinder; 606. Slide groove; 607. Spring; 608. Slider; 609. Long rod. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] like Figure 1-4 As shown, a measuring device for producing inner tubes of shock absorbers includes a base 1, a mounting bracket 2 fixedly connected to the top of the base 1, a control display 3 on the outer wall of the mounting bracket 2, a mounting groove 4 on the inner wall of the mounting bracket 2, and a lifting assembly 5 on the outer wall of the mounting bracket 2. The lifting assembly 5 includes a reduction motor 501, and a lead screw 502 fixedly connected to the output shaft of the reduction motor 501 via a coupling. A moving platform 503 is threadedly connected to the outer wall of the lead screw 502, and a guide block 504 is fixedly connected to the outer wall of the moving platform 503. A guide groove 505 is provided on the inner wall of the mounting groove 4. The outer wall of the mobile platform 503 is provided with a measuring component 6; the measuring component 6 includes a through hole 601, and a pull rod 602 is slidably connected to the inner wall of the through hole 601. One end of the pull rod 602 is fixedly connected to a measuring plate 603 by bolts, and a displacement sensor 604 is provided on the inner wall of the measuring plate 603. An installation cylinder 605 is fixedly connected to the inner wall of the mobile platform 503, and a sliding groove 606 is opened on the inner wall of the installation cylinder 605. A spring 607 is provided on the inner wall of the sliding groove 606, and a slider 608 is slidably connected to the inner wall of the sliding groove 606. A long rod 609 is fixedly connected to the outer wall of the slider 608.

[0025] With the above technical solution, the operator can raise the measuring plate 603 by pulling the lever 602 with one hand, while placing the inner tube of the shock absorber on the base 1 with the other hand. Then, by releasing the lever 602, the measuring plate 603 can quickly move down to fit the surface of the inner tube under the reset action of the spring 607. The outer diameter data is accurately obtained through the displacement sensor 604. This device greatly simplifies the measurement process and significantly improves measurement efficiency. It is particularly suitable for rapid testing in the mass production of shock absorber inner tubes, effectively solving the problems of long time consumption and low efficiency in existing technologies, enabling operators to quickly obtain accurate outer diameter data. The operation of the geared motor 501 drives the lead screw 502 to rotate, causing the moving platform 503 to move up or down, thereby flexibly adjusting the height of the measuring plate 603. This facilitates the adaptation to shock absorber inner tubes with different outer diameter specifications, expands the applicability of the device, and avoids the need for enterprises to frequently change measuring equipment due to different product specifications, reducing equipment procurement and usage costs.

[0026] Specifically, the geared motor 501 forms a moving structure with the moving platform 503 through the lead screw 502, and one end of the lead screw 502 is threaded through the moving platform 503.

[0027] Through the above technical solution, a bearing is provided at one end of the lead screw 502. When the geared motor 501 starts, its output shaft drives the lead screw 502 to rotate. The lead screw 502 rotates more stably within the bearing. Utilizing the principle of threaded transmission, the moving platform 503 moves up and down along the axial direction of the lead screw 502. Compared with the traditional manual adjustment method, the geared motor 501 can drive the platform to quickly adjust the height, allowing the position of the moving platform 503 to be precisely adjusted to the required height. This ensures that the measuring plate 603 is only one centimeter lower than the outer diameter of the inner tube to be measured, thus enabling the measuring plate 603 to accurately adapt to shock absorber inner tubes of different outer diameters, providing a reliable foundation for subsequent accurate measurements.

[0028] Specifically, one end of the guide block 504 extends into the guide groove 505, and the outer wall of the guide block 504 fits against the inner wall of the guide groove 505.

[0029] With the above technical solution, when the mobile platform 503 moves, the mobile platform 503 drives the guide block 504 to move within the guide groove 505, ensuring that the mobile platform 503 can only move in a straight line along the direction of the guide groove 505, which can effectively limit the displacement and sway of the mobile platform 503 in the horizontal direction and enhance stability.

[0030] Specifically, one end of the pull rod 602 is connected to the measuring plate 603 through the through hole 601.

[0031] Through the above technical solution, by pulling the lever 602, the operator can easily and quickly control the position of the measuring plate 603, making it more convenient to place the inner tube of the shock absorber and to perform measurement operations.

[0032] Specifically, there are two mounting cylinders 605, and the two mounting cylinders 605 are symmetrically arranged on the mobile platform 503.

[0033] Through the above technical solution, the symmetrically arranged mounting cylinders 605 enable the two long rods 609 to support the measuring plate 603 well, so that the measuring plate 603 is subjected to more uniform and stable force when it contacts the inner tube of the shock absorber for measurement. This effectively avoids the tilting or shaking problem caused by uneven force on the measuring plate 603, and ensures that the displacement sensor 604 can accurately obtain the outer diameter data of the inner tube of the shock absorber.

[0034] Specifically, the mounting cylinder 605 forms a sliding structure with the slider 608 through the groove 606, and the inner wall of the groove 606 is in contact with the outer wall of the slider 608.

[0035] With the above technical solution, when the slider 608 moves, the slider 608 moves more stably within the groove 606, preventing deviation during movement and enhancing stability.

[0036] Specifically, one end of the long rod 609 passes through the mounting cylinder 605 and is connected to the measuring plate 603.

[0037] With the above technical solution, when the measuring plate 603 moves, the measuring plate 603 drives the two long rods 609 to move, and the long rods 609 drive the slider 608 to move more stably in the groove 606 of the mounting cylinder 605.

[0038] In use, first connect the device to an external power supply. When measuring the inner diameter of shock absorber tubes of different specifications, the operator starts the reduction motor 501 via the control display 3, driving the lead screw 502 to rotate, causing the moving platform 503 to move. The moving platform 503 moves the guide block 504 within the guide groove 505, which in turn moves the mounting cylinder 605, and consequently the measuring plate 603. The measuring plate 603 is positioned approximately one centimeter lower than the outer diameter of the inner tube to be measured, preparing for measurement. During measurement, the operator pulls the lever 602 with one hand. The lever 602 moves the measuring plate 603 upwards, which in turn moves the two long rods 609 upwards. The movable slider 608 moves within the groove 606 of the mounting cylinder 605, compressing the spring 607. At this time, the other hand steadily places the inner tube of the shock absorber on the base 1, holding the inner tube. By releasing the pull rod 602, the measuring plate 603 quickly moves downward under the reset action of the spring 607 within the mounting cylinder 605, causing the measuring plate 603 to fit against the surface of the inner tube. The displacement sensor 604 can accurately acquire the outer diameter data of the inner tube of the shock absorber, and transmit the data to the control display 3 for display. The operator can intuitively view the measurement results. This method is suitable for rapid testing in mass production scenarios of shock absorber inner tubes. This completes all the work. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A measuring device for producing inner tubes of shock absorbers, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected to the mounting bracket (2), and the outer wall of the mounting bracket (2) is provided with a control display (3). The inner wall of the mounting bracket (2) is provided with a mounting groove (4), and the outer wall of the mounting bracket (2) is provided with a lifting component (5). The lifting assembly (5) includes a geared motor (501), and the output shaft of the geared motor (501) is fixedly connected to a lead screw (502) via a coupling. The outer wall of the lead screw (502) is threadedly connected to a moving platform (503), and the outer wall of the moving platform (503) is fixedly connected to a guide block (504). The inner wall of the mounting groove (4) is provided with a guide groove (505), and the outer wall of the moving platform (503) is provided with a measuring assembly (6). The measuring component (6) includes a through hole (601), and a pull rod (602) is slidably connected to the inner wall of the through hole (601). One end of the pull rod (602) is fixedly connected to a measuring plate (603) by bolts. A displacement sensor (604) is provided on the inner wall of the measuring plate (603). An installation cylinder (605) is fixedly connected to the inner wall of the moving platform (503). A sliding groove (606) is provided on the inner wall of the installation cylinder (605). A spring (607) is provided on the inner wall of the sliding groove (606). A slider (608) is slidably connected to the inner wall of the sliding groove (606). A long rod (609) is fixedly connected to the outer wall of the slider (608).

2. The measuring device for producing inner tubes of shock absorbers according to claim 1, characterized in that: The geared motor (501) forms a moving structure with the moving platform (503) through the lead screw (502), and one end of the lead screw (502) is threaded through the moving platform (503).

3. The measuring device for producing inner tubes of shock absorbers according to claim 1, characterized in that: One end of the guide block (504) extends into the guide groove (505), and the outer wall of the guide block (504) is in contact with the inner wall of the guide groove (505).

4. The measuring device for producing inner tubes of shock absorbers according to claim 1, characterized in that: One end of the pull rod (602) is connected to the measuring plate (603) through the through hole (601).

5. A measuring device for producing inner tubes of shock absorbers according to claim 1, characterized in that: The number of mounting cylinders (605) is two, and the two mounting cylinders (605) are symmetrically arranged on the mobile platform (503).

6. The measuring device for producing inner tubes of shock absorbers according to claim 1, characterized in that: The mounting cylinder (605) forms a sliding structure with the slider (608) through the groove (606), and the inner wall of the groove (606) is in contact with the outer wall of the slider (608).

7. A measuring device for producing inner tubes of shock absorbers according to claim 1, characterized in that: One end of the long rod (609) passes through the mounting cylinder (605) and is connected to the measuring plate (603).