A tube mouth detection device for quartz tube production

By using rollers and a laser rangefinder in the tube end inspection device for quartz tube production, the problem of insufficient detail in the inspection results in the prior art is solved. This enables accurate measurement of the inner and outer diameters of the quartz tube end, providing specific numerical data for easy adjustment.

CN224302997UActive Publication Date: 2026-05-29DONGHAI COUNTY KANGTIE QUARTZ PROD CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGHAI COUNTY KANGTIE QUARTZ PROD CO LTD
Filing Date
2025-08-18
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing tube end testing devices used in quartz tube production cannot provide specific information on non-compliance, such as how much the inner diameter of the tube end is too small or how much the tube wall thickness is too thick. This results in a lack of detailed test results, making it difficult for operators to make targeted adjustments or repairs.

Method used

A tube end inspection device for quartz tube production was designed. It uses two rollers to fit against the inner and outer walls of the quartz tube respectively. Combined with a laser rangefinder, it monitors the distance change of the rollers as they revolve around the central axis of the quartz tube in real time, accurately measures the inner and outer diameters, and provides specific numerical data.

Benefits of technology

It enables precise measurement of the inner and outer diameters of quartz tubes, providing a clear understanding of the specific reasons for non-compliance and detailed test results, facilitating targeted adjustments by operators.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224302997U_ABST
    Figure CN224302997U_ABST
Patent Text Reader

Abstract

The utility model provides a kind of pipe orifice detection device for quartz tube production, it is related to quartz tube production technical field, including handle, the handle one side rotation is connected with the rotation seat of coaxial distribution, the rotation seat is fixedly installed with two installation rails about the center of symmetry of handle one side, the installation rail is set along the radius direction of rotation seat and rotation is connected with screw rod in installation rail, setting two gyro wheels respectively adhere quartz tube inner wall rolling, and utilize laser range finder real-time monitoring the distance of gyro wheel around quartz tube center axis revolution process distance connected slider, the inner diameter and outer diameter size of quartz tube pipe orifice can be accurately measured, this kind of measurement mode can directly provide specific value, for example, how many millimeters quartz tube inner diameter is less than standard value, whether pipe wall thickness is overproof and how many millimeters overproof etc., operating personnel can intuitively understand the specific situation of unqualified.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of quartz tube production technology, and in particular to a tube end detection device for quartz tube production. Background Technology

[0002] In the production process of quartz tubes, the tube ends need to be inspected after leveling. Therefore, an existing quartz tube end inspection device (publication number CN210802311U) involves first clamping the quartz tube body onto the tops of two arc-shaped support plates. The arc-shaped pressure plates then move downwards to firmly press and fix the quartz tube body onto the tops of the two support plates. After fixing, the inspection mold moves towards the quartz tube body. If both inspection molds can engage with the tube end of the quartz tube body, it indicates that the tube end of the quartz tube body meets the qualification standard. If the inner diameter of the tube end is smaller than the standard value, it will be obstructed by the cylindrical seat when engaging with the inspection mold, and thus cannot be inserted into the annular groove. If the inner diameter of the tube end is equal to the standard value, but the tube wall thickness exceeds the standard, it also cannot be inserted into the annular groove, and the product can be judged as unqualified.

[0003] However, the testing mold can only determine whether the pipe opening meets the standard, but it cannot provide specific information about non-compliance, such as how much the inner diameter of the pipe opening is too small or how much the pipe wall is too thick. This makes the test results lack detail, and operators cannot intuitively understand the specific situation of non-compliance, making it difficult to make targeted adjustments or repairs. Utility Model Content

[0004] The purpose of this invention is to solve the problems existing in the prior art by proposing a tube end testing device for quartz tube production.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a tube end inspection device for quartz tube production, comprising a handle, a rotating seat coaxially distributed on one side of the handle, two mounting rails symmetrically fixed about the center of the rotating seat on the side facing away from the handle, the mounting rails being arranged along the radial direction of the rotating seat and a lead screw being rotatably connected inside the mounting rails, the length direction of the lead screw being parallel to the radial direction of the rotating seat and a slider threaded onto the lead screw and inserted into the inner wall of the mounting rail, a spring rod being fixedly installed on one side of the slider, the spring rod being parallel to the lead screw and a roller being fixedly installed at the telescopic end of the spring rod, the two telescopic ends of the spring rod being arranged in the same direction and the rollers at the two telescopic ends of the spring rod being respectively used to fit against the inner and outer walls of the quartz tube end, and a laser rangefinder being fixedly installed on the roller bracket.

[0006] Preferably, a spur gear ring is fixedly mounted on one side of the rotating seat and is coaxially distributed and rotatably connected to the grip surface, and a spur gear that meshes with the spur gear ring is provided near the center of the grip surface.

[0007] Preferably, a motor is fixedly mounted on the other side of the grip, and the motor spindle passes through the grip and is fixedly connected to the center of the spur gear end face.

[0008] Preferably, the end of the lead screw facing the center of the rotating seat passes through the mounting rail and is fixedly mounted with a bevel gear ring, and the rotating seat is rotatably connected to a bevel gear that meshes with the bevel gear ring.

[0009] Preferably, a motor is also fixedly installed on one side of the rotating base at the position of each bevel gear, and the motor on the rotating base is used to drive the bevel gears at the same height to rotate.

[0010] Preferably, a wire rotary connector is embedded in the center of the rotating seat surface, and the connecting wire at the slip ring of the wire rotary connector is connected in parallel to two switches, which are electrically connected to the two motors on the rotating seat respectively.

[0011] Preferably, one end of the rotating shaft of the rotating connector is fixedly connected to the center of the rotating seat, and the brush part of the rotating connector is fixedly connected to the handle, with the connecting wire of the brush part of the rotating connector passing through the center of the handle.

[0012] Preferably, the grip side is fixedly installed with a plurality of extended claws arranged in a ring array around the central axis of the rotating seat, and an electric push rod is fixedly installed through the outer side of the extended claws. The telescopic end of the electric push rod passes through the extended claws and is fixedly installed with an anti-slip clamp rod arranged parallel to the central axis of the rotating seat.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] 1. In this utility model, two rollers are set to roll against the inner and outer walls of the quartz tube respectively, and a laser rangefinder is used to monitor the distance between the rollers and the connected sliders during the revolution of the rollers around the central axis of the quartz tube. This allows for the accurate measurement of the inner and outer diameters of the quartz tube opening. This measurement method can directly provide specific values, such as how many millimeters the inner diameter of the tube opening is smaller than the standard value, whether the tube wall thickness exceeds the standard, and by how many millimeters. Operators can intuitively understand the specific situation of non-compliance.

[0015] 2. In this utility model, the electric push rods on several extended claws are extended to make the anti-slip clamping rods approach the quartz tube. Because the several anti-slip clamping rods move synchronously, when the several anti-slip clamping rods clamp the surface of the quartz tube, the opening of the quartz tube and the rotating seat are coaxial and concentric. Attached Figure Description

[0016] Figure 1 This utility model provides a three-dimensional structural schematic diagram of a tube end detection device for quartz tube production;

[0017] Figure 2This utility model proposes a tube end testing device for quartz tube production. Figure 1 A schematic diagram of the left-side view structure;

[0018] Figure 3 This utility model proposes a tube end testing device for quartz tube production. Figure 2 A schematic diagram of the cross-sectional structure;

[0019] Figure 4 This is a schematic diagram of the slider's structure.

[0020] Legend: 1. Rotating seat; 2. Extending claw; 3. Electric push rod; 4. Anti-slip clamp; 5. Mounting rail; 6. Slider; 7. Spring rod; 8. Roller; 9. Bevel gear ring; 10. Bevel gear; 11. Handle; 12. Motor; 13. Spur gear; 14. Spur gear ring; 15. Lead screw; 16. Laser rangefinder; 17. Wire rotary connector; 18. Switch. Detailed Implementation

[0021] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0023] like Figures 1-4 As shown, a tube end inspection device for quartz tube production includes a handle 11. One side of the handle 11 is rotatably connected to a coaxially distributed rotating seat 1. Several extension claws 2 are fixedly installed on the side of the handle 11, arranged in a ring array around the central axis of the rotating seat 1. An electric push rod 3 is fixedly installed through the outer side of the extension claw 2. The telescopic end of the electric push rod 3 passes through the extension claw 2 and is fixedly installed with an anti-slip clamping rod 4 arranged parallel to the central axis of the rotating seat 1. In use, the handle 11 is held and the rotating seat 1 faces the tube end of the quartz tube. The electric push rod 3 on the several extension claws 2 extends to bring the anti-slip clamping rod 4 close to the quartz tube. Because the several anti-slip clamping rods 4 move synchronously, when the several anti-slip clamping rods 4 clamp the surface of the quartz tube, the tube end of the quartz tube is coaxial and concentric with the rotating seat 1.

[0024] Two mounting rails 5 are symmetrically fixed about the center of the rotating base 1 on the side facing away from the handle 11. The mounting rails 5 are arranged along the radius of the rotating base 1, and a lead screw 15 is rotatably connected inside the mounting rails 5. The length direction of the lead screw 15 is parallel to the radius direction of the rotating base 1, and a slider 6, which inserts into the inner wall of the mounting rail 5, is threaded onto the lead screw 15. A spring rod 7 is fixedly installed on one side of the slider 6. The spring rod 7 is parallel to the lead screw 15, and a roller 8 is fixedly installed at the telescopic end of the spring rod 7. The telescopic ends of the two spring rods 7 are in the same direction, and the rollers 8 at the telescopic ends of the two spring rods 7 are used to fit against the inner and outer walls of the quartz tube opening, respectively. A laser rangefinder 16 is fixedly installed on the bracket of the roller 8. When the anti-slip clamp 4 fits against the outer wall of the quartz tube, the screw 15 inside the mounting rail 5 is rotated, which causes the threaded slider 6 to move the corresponding roller 8. Figure 2 As shown, the upper slider 6 descends until the roller 8 on its surface fits against the outer wall of the quartz tube, and the corresponding spring rod 7 between them is elastically compressed. The upper slider 6 descends until the roller 8 on its surface fits against the inner wall of the quartz tube, and the corresponding spring rod 7 between them is elastically compressed. The laser rangefinder 16 on the surface of the roller 8 detects the distance between the roller 8 and the corresponding slider 6 in the initial state. The rotating seat 1 rotates, causing the two rollers 8 to roll along the outer and inner walls of the quartz tube respectively. During the rolling process, when a part of the inner wall of the quartz tube opening bulges inward, the roller 8 in contact with the inner wall will overcome the thrust of the spring rod 7 and move closer to the center of the rotating seat 1. At this time, the distance between the roller 8 and the slider 6 measured by the laser rangefinder 16 will shorten. Conversely, when a part of the inner wall of the quartz tube opening is concave inward, the roller 8 in contact with the inner wall will move away from the center of the rotating seat 1 due to the thrust of the spring rod 7. At this time, the distance between the roller 8 and the slider 6 measured by the laser rangefinder 16 will increase. Similarly, when a section of the outer wall of the quartz tube protrudes outward, the roller 8, which is in contact with the outer wall, will overcome the thrust of the spring rod 7 and move away from the center of the rotating seat 1 as it passes by. At this time, the distance between the roller 8 and the slider 6 measured by the laser rangefinder 16 will be shortened. Conversely, when a section of the outer wall of the quartz tube protrudes inward, the roller 8, which is in contact with the inner wall, will move closer to the center of the rotating seat 1 as it passes by due to the thrust of the spring rod 7. At this time, the distance between the roller 8 and the slider 6 measured by the laser rangefinder 16 will increase.

[0025] A spur gear ring 14 is coaxially distributed and rotatably connected to the surface of the handle 11 on one side of the rotating base 1. A spur gear 13 is provided near the center of the surface of the handle 11 and meshes with the spur gear ring 14. A motor 12 is fixedly installed on the other side of the handle 11. The main shaft of the motor 12 passes through the handle 11 and is fixedly connected to the center of the end face of the spur gear 13. The spur gear ring 14 can be driven to rotate by the motor 12 on the handle 11 to drive the spur gear 13 to rotate.

[0026] The lead screw 15 passes through the mounting rail 5 at one end facing the center of the rotating seat 1 and is fixedly mounted with a bevel gear ring 9. A bevel gear 10 that meshes with the bevel gear ring 9 is rotatably connected to the rotating seat 1. A motor 12 is also fixedly mounted on one side of the rotating seat 1 at the position of each bevel gear 10. The motor 12 on the rotating seat 1 is used to drive the bevel gear 10 at the same height to rotate. By driving the two bevel gears 10 to rotate individually, the meshing bevel gear ring 9 can drive the corresponding lead screw 15 to rotate.

[0027] A rotary connector 17 is embedded in the center of the surface of the rotating base 1. The connecting wires at the slip ring of the rotary connector 17 are connected in parallel to two switches 18. The two switches 18 are electrically connected to the two motors 12 on the rotating base 1 respectively. One end of the rotating shaft of the rotary connector 17 is fixedly connected to the center of the rotating base 1, and the brush part of the rotary connector 17 is fixedly connected to the handle 11. The connecting wire of the brush part of the rotary connector 17 passes through the center of the handle 11. When the rotating base 1 rotates, it will drive the rotating shaft and slip ring of the rotary connector 17 to rotate simultaneously. The switch 18 used in this solution is a commercially available switch 18 product with wireless control switch. Power is supplied and control signal input is received through the connecting wire of the brush part of the rotary connector 17. Personnel can control the corresponding motor 12 on the rotating base 1 by controlling the opening and closing of the switch 18. By controlling the operation of the motor 12 on the rotating base 1, the corresponding bevel gear 10 is rotated.

[0028] The method of using this utility model is as follows: Hold the handle 11 and rotate the seat 1 toward the quartz tube opening. The electric push rods 3 on several extension claws 2 extend to bring the anti-slip clamping rods 4 close to the quartz tube. Because several anti-slip clamping rods 4 move synchronously, they clamp the surface around the quartz tube opening. Then, by rotating the lead screw 15 in the drive mounting rail 5, the threaded slider 6 drives the corresponding roller 8 to move. The slider 6 in the upper position descends until the roller 8 on its surface is in contact with the outer wall of the quartz tube, and the spring rod 7 between the two is elastically compressed. The slider 6 in the upper position descends until the roller 8 on its surface is in contact with the inner wall of the quartz tube, and the spring rod 7 between the two is elastically compressed. Then, the rotating seat 1 rotates to drive the two rollers 8 to roll along the outer and inner walls of the quartz tube respectively. By using the laser rangefinder 16 to detect the change in distance between the roller 8 and the slider 6 during the revolution of the roller 8 around the central axis of the quartz tube opening, the actual size of the quartz tube opening and the specific data of the defect points can be clearly obtained.

[0029] The wiring diagrams for the electric push rod 3, motor 12, laser rangefinder 16, wire rotary connector 17, and switch 18 in this utility model are common knowledge in the field. Their working principles are known technologies. The appropriate model is selected according to actual use. Therefore, the control methods and wiring layouts of the electric push rod 3, motor 12, laser rangefinder 16, wire rotary connector 17, and switch 18 will not be explained in detail.

[0030] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A tube end inspection device for quartz tube production, characterized in that: The device includes a handle (11), one side of which is rotatably connected to a coaxially distributed rotating seat (1). The rotating seat (1) has two mounting rails (5) symmetrically fixed about the center on the side facing away from the handle (11). The mounting rails (5) are arranged along the radial direction of the rotating seat (1) and a lead screw (15) is rotatably connected inside the mounting rails (5). The length direction of the lead screw (15) is parallel to the radial direction of the rotating seat (1), and a slider (6) that is threaded onto the lead screw (15) and inserted into the inner wall of the mounting rail (5) is inserted into the slider (6). A spring rod (7) is fixedly installed on one side of the slider (6). The spring rod (7) is parallel to the lead screw (15), and a roller (8) is fixedly installed at the telescopic end of the spring rod (7). The telescopic ends of the two spring rods (7) are arranged in the same direction, and the rollers (8) at the telescopic ends of the two spring rods (7) are respectively used to fit the inner and outer walls of the quartz tube opening. A laser rangefinder (16) is fixedly installed on the support of the roller (8).

2. The tube end inspection device for quartz tube production according to claim 1, characterized in that: The rotating seat (1) has a coaxially distributed spur gear (14) that is rotatably connected to the grip (11) surface. The grip (11) surface is provided with a spur gear (13) that meshes with the spur gear (14) near the center.

3. The tube end inspection device for quartz tube production according to claim 2, characterized in that: A motor (12) is fixedly installed on the other side of the grip (11). The main shaft of the motor (12) passes through the grip (11) and is fixedly connected to the center of the end face of the spur gear (13).

4. The tube end inspection device for quartz tube production according to claim 1, characterized in that: The lead screw (15) passes through the mounting rail (5) at one end facing the center of the rotating seat (1) and is fixedly mounted with a bevel gear (9). A bevel gear (10) that meshes with the bevel gear (9) is rotatably connected to the rotating seat (1).

5. The tube end inspection device for quartz tube production according to claim 4, characterized in that: The rotating seat (1) is also fixedly equipped with a motor (12) at the position of each bevel gear (10), and the motor (12) on the rotating seat (1) is used to drive the bevel gear (10) at the same height to rotate.

6. The tube end inspection device for quartz tube production according to claim 5, characterized in that: A wire rotary connector (17) is embedded in the center of the surface of the rotating seat (1). The connecting wire at the slip ring of the wire rotary connector (17) is connected to two circuit breakers (18) in parallel. The two circuit breakers (18) are electrically connected to the two motors (12) on the rotating seat (1).

7. The tube end inspection device for quartz tube production according to claim 6, characterized in that: One end of the rotating shaft of the rotatable connector (17) is fixedly connected to the center of the rotating seat (1), and the brush part of the rotatable connector (17) is fixedly connected to the handle (11). The connecting wire of the brush part of the rotatable connector (17) passes through the center of the handle (11).

8. The tube end inspection device for quartz tube production according to claim 1, characterized in that: The grip (11) is fixedly installed with several extended claws (2) arranged in a ring around the central axis of the rotating seat (1). An electric push rod (3) is fixedly installed through the outer side of the extended claws (2). The telescopic end of the electric push rod (3) passes through the extended claws (2) and is fixedly installed with an anti-slip clamp rod (4) arranged parallel to the central axis of the rotating seat (1).