Gasket thickness measuring machine convenient to use

By designing an automated gasket thickness measuring machine, and utilizing the combination of photoelectric switches and solenoid valves, the automatic detection and classification of gasket thickness is achieved, solving the problem of low efficiency in manual judgment in existing technologies and improving detection efficiency and accuracy.

CN224121907UActive Publication Date: 2026-04-14NANJING COLIN MINDRAY AUTOMATION EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANJING COLIN MINDRAY AUTOMATION EQUIP CO LTD
Filing Date
2025-05-12
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Existing gasket thickness measurement devices rely on manual judgment, which is inefficient and prone to misjudgment, and cannot effectively identify and separate unqualified products.

Method used

A gasket thickness measuring machine including a base, support components, and detection components was designed. By using photoelectric switches and solenoid valves, the gasket thickness can be automatically detected and classified. Through the blowing of air nozzles and the operation of vacuum suction cups, qualified and unqualified gaskets are automatically separated into different collection areas.

Benefits of technology

It has achieved automated and efficient classification of gasket thickness detection, reduced human error, improved detection efficiency and accuracy, and reduced gas supply requirements.

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Abstract

The utility model relates to the technical field of thickness measuring machines, in particular to a gasket thickness measuring machine convenient to use, which comprises a base, a support component and a detection component, and is characterized in that the base is provided with a first collection area, a second collection area and a third collection area; the supporting part is arranged between the first collecting area and the second collecting area and provided with a first air nozzle and a second air nozzle which are controlled by a first electromagnetic valve to be opened and closed. The detection part is movably arranged between the supporting part and the third collection area; the detection part comprises a detection seat, a detection needle, a vacuum chuck and a photoelectric switch, and the detection needle is movably arranged on the detection seat in the vertical direction; the vacuum chuck is arranged on the detection seat and is controlled by the second electromagnetic valve to open and close; and the photoelectric switch is used for monitoring the position of the detection needle in the vertical direction and is connected with the first electromagnetic valve and the second electromagnetic valve through the plc controller. According to the utility model, the automatic classification function after the gaskets are detected can be realized, so that the gaskets with the thicknesses meeting the standard and the gaskets with the thicknesses not meeting the standard are automatically separated and collected.
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Description

Technical Field

[0004]

[0001] The utility model relates to the technical field of thickness measuring machines, and particularly to a gasket thickness measuring machine which is convenient to use. Background Technique

[0002] In mechanical seal applications, gaskets are widely used between two parts, and their main function is to prevent leakage caused by factors such as pressure, corrosion, and natural thermal expansion and contraction of pipelines. In order to ensure that the gasket can effectively perform its sealing duty, it is particularly important to control the parameter of gasket thickness. An inappropriate thickness may weaken its sealing effect, thereby affecting the performance and safety of the entire system.

[0003] Traditionally, after the production of gaskets, a thickness detection process is required. However, after the existing measuring device finishes measuring the thickness of the gasket, it usually relies on manual judgment of whether it is qualified and manually selects the products that do not meet the specifications. This method is not only inefficient, but also prone to misjudgment due to human factors, so it is impossible to ensure that all unqualified gaskets can be accurately identified and separated. In view of the above problems, the utility model proposes a gasket thickness measuring machine which is convenient to use. Content of the Utility Model

[0004] The purpose of the utility model is to provide a gasket thickness measuring machine which is convenient to use, so as to solve the problems put forward in the above background technique.

[0005] The utility model is realized through the following technical solutions:

[0006] A gasket thickness measuring machine which is convenient to use includes a base, a support component, and a detection component. The base has a first collection area, a second collection area, and a third collection area; the support component is arranged between the first collection area and the second collection area, and a first air nozzle and a second air nozzle controlled by a first solenoid valve to open and close are arranged on the support component; the detection component is movably arranged between the support component and the third collection area; the detection component includes a detection seat, a detection needle, a vacuum chuck, and a photoelectric switch. The detection needle is vertically movably arranged on the detection seat; the vacuum chuck is arranged on the detection seat and controlled by a second solenoid valve to open and close; the photoelectric switch is used to monitor the position of the detection needle in the vertical direction and is connected to the first solenoid valve and the second solenoid valve through a plc controller.

[0007] Optionally, a detection groove for accommodating the gasket is arranged at the top of the support component, and the first air nozzle and the second air nozzle are arranged at the bottom of the detection groove.

[0008] Optionally, the first air nozzle and the second air nozzle are arranged at the edge of the bottom of the detection groove. The first air nozzle is arranged close to the second collection area, and the second air nozzle is arranged close to the first collection area.

[0009] Optionally, the detection component is driven to move by a driving device, which includes a rotary cylinder, a linear cylinder, and a rotating frame. The rotary cylinder is fixedly mounted on the base, the cylinder body of the linear cylinder is fixed to the output end of the rotary cylinder, and the rotating frame connects the output end of the linear cylinder and the detection seat.

[0010] Optionally, the detection needle includes a needle base and a needle body. The detection base has a movable hole adapted to the shape of the needle base and a needle hole adapted to the needle body. The needle body is threadedly connected to the needle base.

[0011] Optionally, the needle body has a hollow structure, the vacuum suction cup is disposed at the lower end of the needle body and communicates with the needle body, the upper end of the needle body is provided with a connecting nozzle for connecting to a vacuum device, and the bottom edge of the vacuum suction cup is provided with suction holes distributed in a ring.

[0012] Optionally, a shield is fixedly provided on the side of the needle holder, a monitoring hole is provided on the shield, and a glass block is provided on the shield located above the monitoring hole. The photoelectric switch includes a transmitter and a receiver fixedly provided on both sides of the shield and arranged opposite to each other.

[0013] Compared with the prior art, this utility model provides an easy-to-use gasket thickness measuring machine, which has the following beneficial effects:

[0014] 1. This utility model, through the coordinated use of a base, support components, and detection components, can achieve automatic classification of gaskets after detection, thereby automatically separating and collecting gaskets with thicknesses that meet the standards and those that do not.

[0015] 2. By setting the first and second air nozzles at the bottom edge of the detection groove, when the first and second air nozzles blow the gasket, the force point acting on the gasket can be far away from the center of gravity of the gasket. In this way, the first and second air nozzles can operate at low air pressure, reducing the demand for air source.

[0016] 3. The detection needle of this utility model includes a needle base and a needle body. The needle body is threadedly connected to the needle base. By rotating the needle body, the distance between the needle body and the support component can be adjusted, thereby enabling the detection of gaskets of different thicknesses and improving the applicability of the gasket thickness measuring machine. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 For the present utility model Figure 1 A magnified structural diagram at point A;

[0019] Figure 3 This is a schematic diagram of the detection needle structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the supporting component structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the detection seat structure of this utility model.

[0022] In the diagram: 1. Base; 2. First collection area; 3. Second collection area; 4. Third collection area; 5. Support component; 6. First air nozzle; 7. Second air nozzle; 8. Detection seat; 80. Movable hole; 81. Pinhole; 9. Detection needle; 90. Needle seat; 900. Shielding plate; 901. Monitoring hole; 902. Glass block; 91. Needle body; 910. Connecting nozzle; 10. Vacuum suction cup; 100. Adsorption hole; 11. Photoelectric switch; 110. Transmitter; 111. Receiver; 12. Detection slot; 13. Rotary cylinder; 14. Linear cylinder; 15. Rotating frame. 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] Example: Please refer to Figures 1 to 5 According to an embodiment of the present invention, a user-friendly gasket thickness measuring machine is provided, comprising a base 1, a support component 5, and a detection component. The base 1 has a first collection area 2, a second collection area 3, and a third collection area 4, all of which are box-type structures with open tops. The support component 5 is located between the first collection area 2 and the second collection area 3. The support component 5 is equipped with a first air nozzle 6 and a second air nozzle 7, which are controlled by a first solenoid valve (not shown). Specifically, the first air nozzle 6 and the second air nozzle 7 are both connected to an air pump via air pipes and are individually controlled by two first solenoid valves. The detection component is movably located between the support component 5 and the third collection area 4. The detection component includes a detection seat 8, a detection needle 9, a vacuum suction cup 10, and a photoelectric switch 11. The detection needle 9 is vertically movably located on the detection seat 8. The vacuum suction cup 10 is located on the detection seat 8 and is controlled by a second solenoid valve. The photoelectric switch 11 is used to monitor the vertical position of the detection needle 9 and is connected to the first and second solenoid valves via a PLC controller.

[0025] The easy-to-use gasket thickness measuring machine with the above structure places the gasket to be tested on the support component 5, and then moves the detection component to the support component 5 to detect the thickness of the gasket. If the gasket meets the thickness requirements, the detection needle 9 will move upward a distance h relative to the detection seat 8 in the vertical direction. If the gasket thickness is too small, the detection needle 9 will move upward a distance h1 relative to the detection seat 8 in the vertical direction. If the gasket thickness is too large, the detection needle 9 will move upward a distance h2 relative to the detection seat 8 in the vertical direction, where h1 < h < h2. When photoelectric switch 11 detects that the detection needle 9 has moved a distance h1 relative to the detection seat 8, the first solenoid valve controlling the opening and closing of the first air nozzle 6 will be opened by the PLC controller, and the first air nozzle 6 will blow the gasket into the first collection area 2 for collection. When photoelectric switch 11 detects that the detection needle 9 has moved a distance h relative to the detection seat 8, the first solenoid valve controlling the opening and closing of the second air nozzle 7 will be opened by the PLC controller, and the second air nozzle 7 will blow the gasket into the second collection area 3 for collection. When photoelectric switch 11 detects that the detection needle 9 has moved a distance h2 relative to the detection seat 8, the second solenoid valve controlling the opening and closing of the vacuum suction cup 10 will be opened by the PLC controller, and the vacuum suction cup 10 will pick up the gasket and send it to the third collection area 4 for collection. In this way, the automatic classification function after gasket detection can be realized.

[0026] In this exemplary embodiment, the top of the support member 5 is provided with a detection groove 12 for accommodating a gasket. The shape of the detection groove 12 is specifically set according to the shape of the gasket to be detected. Since the gasket is generally annular, the detection groove 12 in this example is circular. The first air nozzle 6 and the second air nozzle 7 are disposed at the bottom of the detection groove 12. The detection groove 12 can restrict the position of the gasket and minimize the possibility of displacement of the gasket during the detection process, which could lead to inaccurate detection results.

[0027] In this exemplary embodiment, the first air nozzle 6 and the second air nozzle 7 are disposed at the bottom edge of the detection groove 12, with the first air nozzle 6 positioned near the second collection area 3 and the second air nozzle 7 positioned near the first collection area 2. This arrangement allows the point of force applied to the gasket when the first air nozzle 6 and the second air nozzle 7 blow air onto the gasket to be far from the gasket's center of gravity. This enables the first air nozzle 6 and the second air nozzle 7 to operate at low air pressure, reducing the demand for air. Specifically, when the first air nozzle 6 is open, the gasket is blown up by the first air nozzle 6 and falls into the first collection area 2 in a flipping manner. When the second air nozzle 7 is open, the gasket is blown up by the second air nozzle 7 and falls into the second collection area 3 in a flipping manner.

[0028] In this exemplary embodiment, the detection component is driven to move by a driving device, which includes a rotary cylinder 13, a linear cylinder 14, and a rotating frame 15. The rotary cylinder 13 is fixedly mounted on the base 1, the cylinder body of the linear cylinder 14 is fixed to the output end of the rotary cylinder 13, and the rotating frame 15 connects the output end of the linear cylinder 14 and the detection seat 8. With this configuration, the linear cylinder 14 can push the detection component to move vertically, thereby causing the detection needle 9 to move vertically, and the rotary cylinder 13 can drive the detection component to rotate horizontally, thus enabling the detection component to reciprocate between the upper space of the support component 5 and the upper space of the third collection area 4.

[0029] In this exemplary embodiment, the detection needle 9 includes a needle base 90 and a needle body 91. The needle base 90 is square, and the detection seat 8 has a movable hole 80 adapted to the shape of the needle base 90 and a needle hole 81 adapted to the needle body 91. The needle body 91 is threadedly connected to the needle base 90. With this configuration, the distance between the needle body 91 and the support member 5 can be adjusted by rotating the needle body 91, thereby enabling the detection of gaskets of different thicknesses and improving the applicability of the gasket thickness measuring machine.

[0030] In existing gaskets, most are annular gaskets with an inner hole at the center. The presence of this inner hole can affect the suction force of the vacuum suction cup 10 on the gasket, and may even lead to detachment due to insufficient suction force. Therefore, in this exemplary embodiment, the needle body 91 has a hollow structure, the vacuum suction cup 10 is located at the lower end of the needle body 91 and communicates with the needle body 91, and the upper end of the needle body 91 is provided with a connecting nozzle 910 for connecting to vacuum equipment (such as a vacuum pump). The bottom edge of the vacuum suction cup 10 is provided with suction holes 100 arranged in a ring. Through the several suction holes 100 arranged in a ring, the suction force of the vacuum suction cup 10 on the annular gasket can be increased, reducing the phenomenon of detachment due to insufficient suction force.

[0031] In this exemplary embodiment, a baffle plate 900 is fixedly disposed on the side of the needle holder 90. A monitoring hole 901 is provided on the baffle plate 900. A glass block 902 is disposed on the baffle plate 900 located above the monitoring hole 901. The photoelectric switch 11 includes a transmitter 110 and a receiver 111 fixedly disposed on both sides of the baffle plate 900 and arranged opposite to each other. When the detection needle 9 moves upward relative to the detection holder 8 by a distance within a preset standard range (denoted as h), the light emitted by the transmitter 110 will pass smoothly through the monitoring hole 901 and be received by the receiver 111. At this time, the photoelectric switch 11 generates a signal indicating that the pad thickness is qualified. If the detection needle 9 moves upward by a distance less than the standard range and reaches position h1, the light emitted by the transmitter 110 will shine on the baffle plate 900 below the monitoring hole 901, causing the receiver 111 to be unable to receive the light. This situation triggers a switch signal indicating that the pad is too thin. If the upward movement of the detection pin 9 exceeds the standard range, when it reaches position h2, the light emitted by the transmitter 110 will pass through the glass block 902 above the monitoring hole 901 and reach the receiver 111. The light intensity will be weakened, which will also trigger a switch signal indicating that the pad is too thick.

[0032] 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 user-friendly gasket thickness measuring machine, characterized in that, include: The base (1) has a first collection area (2), a second collection area (3) and a third collection area (4); A support component (5) is provided between the first collection area (2) and the second collection area (3). The support component (5) is provided with a first air nozzle (6) and a second air nozzle (7) controlled by a first solenoid valve. And a detection component, which is movably disposed between the support component (5) and the third collection area (4); The detection component includes: Detection seat (8); The detection needle (9) is vertically movable and disposed on the detection seat (8); A vacuum suction cup (10) is set on the detection seat (8) and is controlled to open and close by a second solenoid valve; A photoelectric switch (11) is used to monitor the vertical position of the detection needle (9) and is connected to the first solenoid valve and the second solenoid valve through a PLC controller.

2. The easy-to-use gasket thickness measuring machine according to claim 1, characterized in that: The top of the support component (5) is provided with a detection groove (12) that can accommodate a gasket, and the first air nozzle (6) and the second air nozzle (7) are provided at the bottom of the detection groove (12).

3. The easy-to-use gasket thickness measuring machine according to claim 2, characterized in that: The first air nozzle (6) and the second air nozzle (7) are disposed at the bottom edge of the detection groove (12), with the first air nozzle (6) disposed near the second collection area (3) and the second air nozzle (7) disposed near the first collection area (2).

4. The easy-to-use gasket thickness measuring machine according to claim 1, characterized in that: The detection component is driven to move by a drive device, which includes a rotary cylinder (13), a linear cylinder (14), and a rotating frame (15). The rotary cylinder (13) is fixedly installed on the base (1), the cylinder body of the linear cylinder (14) is fixed to the output end of the rotary cylinder (13), and the rotating frame (15) connects the output end of the linear cylinder (14) and the detection seat (8).

5. The easy-to-use gasket thickness measuring machine according to claim 1, characterized in that: The detection needle (9) includes a needle seat (90) and a needle body (91). The detection seat (8) has an active hole (80) that matches the shape of the needle seat (90) and a needle hole (81) that matches the needle body (91). The needle body (91) is threadedly connected to the needle seat (90).

6. The easy-to-use gasket thickness measuring machine according to claim 5, characterized in that: The needle body (91) has a hollow structure. The vacuum suction cup (10) is located at the lower end of the needle body (91) and communicates with the needle body (91). The upper end of the needle body (91) is provided with a connecting nozzle (910) for connecting to a vacuum device. The bottom edge of the vacuum suction cup (10) is provided with suction holes (100) distributed in a ring.

7. The easy-to-use gasket thickness measuring machine according to claim 5 or 6, characterized in that: A shield plate (900) is fixedly provided on the side of the needle holder (90). A monitoring hole (901) is provided on the shield plate (900). A glass block (902) is provided on the shield plate (900) located above the monitoring hole (901). The photoelectric switch (11) includes a transmitter (110) and a receiver (111) fixedly provided on both sides of the shield plate (900) and arranged opposite to each other.