Probe structure for increasing sensing distance of sensor
By designing a probe structure with an extended housing and extension rod, the problem of insufficient sensor sensing distance was solved, enabling effective detection of special parts and areas and reducing costs.
Patent Information
- Application Number
- CN202520394420.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-07
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-03-07
AI Technical Summary
Existing sensors have insufficient sensing distance when inspecting for missing welds on special parts or in special areas, making it difficult to detect effectively.
Design a probe structure including an extension housing and an extension rod. By combining the extension housing and the extension rod, the sensing distance of the sensor is increased, and the cooperation of the spring and the top ring ensures that the extension rod moves stably and triggers the sensor.
It enables effective detection of special parts and areas, improves the flexibility and accuracy of detection, and reduces the cost of customized sensors.
Smart Images
Figure CN223910912U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to welding inspection technical field, concretely relates to a kind of probe structure for increasing inductor response distance. BACKGROUND
[0002] In industrial production process, welding is widely used in various fields as a commonly used processing method, such as automobile, equipment manufacturing, etc., a plurality of workpieces are welded together to form a complete component by welding, in order to avoid some workpieces inside the component miswelding, missing welding and other situations, artificial inspection or inductor inspection is generally used, artificial inspection can only be checked by eyes, and some parts are not easy to observe. Missing welding can be detected by inductor feedback. The commonly used inductor is a contact inductor, which detects the contact between the contact probe of the inductor and the detected part. If the detected part does not appear missing welding, the inductor will abut against the workpiece, thereby feeding back. If the detected part does not appear missing welding, the inductor will not abut against the workpiece, which can prompt the staff to appear missing welding.
[0003] The length of the probe of the conventional contact inductor and its own length are limited, and for some special parts or special parts, the inductor needs to be inserted into a long position, and the conventional inductor is difficult to complete the detection work. If some customized inductors are used, the cost will increase. Based on the above reasons, the existing inductor is improved, the response distance of the inductor is increased, and the missing welding detection of some special parts and special parts is adapted. UTILITY MODEL CONTENT
[0004] The utility model aims at providing a kind of probe structure for increasing inductor response distance, solve the problem that inductor is not enough in length when checking missing welding of some special parts or special parts in prior art.
[0005] To solve the above technical problems, the utility model adopts the following technical solutions:
[0006] A kind of probe structure for increasing inductor response distance, including the extension shell of column shape, sliding cavity is provided in the extension shell along its length direction, the rear end of extension shell is provided with the installation hole being communicated with sliding cavity, inductor is installed in installation hole;The front end of extension shell is provided with the sliding hole being communicated with sliding cavity, sliding hole is slidably provided with extension rod, the front end of extension rod is placed in front of extension shell, rear end is placed in sliding cavity, and inductor is aligned.
[0007] Further, the outer wall of the extension rod is sleeved with a top ring in the sliding cavity, the outer wall of the extension rod is sleeved with a spring between the top ring and the rear cavity wall of the sliding cavity, one end of the spring is connected with the rear side of the top ring, the other end of the spring is connected with the rear cavity wall of the sliding cavity, and a gap is left between the rear end of the extension rod and the front end of the inductor when the spring is in a natural elongation state.
[0008] Further, the bottom of the mounting hole is connected with the rear cavity wall of the sliding cavity through the communication hole.
[0009] Further, the extension shell comprises a front shell and a rear shell, the front end of the rear shell is provided with a connecting groove, the rear end of the front shell is mounted in the connecting groove, the sliding cavity is arranged in the front shell, and the rear end of the sliding cavity is communicated with the connecting groove.
[0010] Further, the groove wall of the connecting groove is provided with a first screw thread, the outer wall of the rear end of the front shell is provided with a second screw thread, and the first screw thread is connected with the second screw thread in a screw thread matching mode.
[0011] Further, the outer wall of the inductor is sleeved with a mounting ring, the mounting ring is provided with a through hole penetrating through the front and the rear, the rear end of the extension shell is provided with a threaded hole at the edge of the mounting hole, and the through hole and the threaded hole are aligned and fixed through a fixing bolt.
[0012] Further, the mounting ring is sleeved on the outer wall of the inductor in a welding or bonding fixed mode.
[0013] Further, the inductor is a contact type inductor.
[0014] Compared with the prior art, the probe structure has the advantages that: 1. the extension shell is arranged, the sensor can be extended, the extension shell and the extension rod are matched, the sensor can be deeply arranged in a special part or a special position for detection, the extension rod slides in the sliding cavity towards the inductor when the extension rod reaches the test position, and finally the extension rod reaches the inductor, so that the inductive signal is generated, and whether the welding is missed or wrong is determined; 2. the sliding hole is arranged, the displacement direction and the displacement stability of the extension rod are well controlled; and 3. the mounting hole is arranged, the inductor is well fixed, and the detection work can be well completed by simply improving the existing inductor. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is a side cross-sectional view of the probe structure for increasing the inductive distance of the inductor. Figure One .
[0016] Figure 2 It is a side cross-sectional view of the probe structure for increasing the inductive distance of the inductor. Figure Two .
[0017] Icon: 1 - extension shell, 2 - sliding cavity, 3 - mounting hole, 4 - inductor, 5 - sliding hole, 6 - top ring, 7 - spring, 8 - communication hole, 9 - front shell, 10 - rear shell, 11 - connecting groove, 12 - mounting ring, 13 - through hole, 14 - threaded hole, 15 - fixing bolt, 20 - extension rod. DETAILED DESCRIPTION
[0018] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following will be further described in detail in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model, and are not used to limit the utility model.
[0019] Figures 1-2 The utility model embodiment is shown.
[0020] Embodiment:
[0021] A kind of probe structure for increasing inductor induction distance, including the extension shell 1 of column, sliding cavity 2 is provided in the extension shell 1 along its length direction, the rear end of extension shell 1 is provided with and the mounting hole 3 of sliding cavity 2 intercommunication, inductor 4 is installed in mounting hole 3;The front end of extension shell 1 is provided with and the sliding hole 5 of sliding cavity 2 intercommunication, sliding hole 5 is slidably provided with extension rod 20, the front end of extension rod 20 is placed in the front of extension shell 1, rear end is placed in sliding cavity 2, and it is aligned inductor 4. By setting extension shell 1, sensor can be extended, by extension shell 1 and extension rod 20 cooperation, in-depth to special parts or special parts are detected, when extension rod 20 top to test position it will slide in sliding cavity 2 towards inductor 4, finally top inductor 4, to start sensing signal, it is convenient to judge whether appear miss weld, wrong weld. By sliding hole 5, the displacement direction and displacement stability of extension rod 20 can be well controlled. By setting mounting hole 3, inductor 4 can be well fixed, can be well completed detection work on the basis of existing inductor 4 simple improvement.
[0022] The outer wall of the extension rod 20 is sleeved with a top ring 6 in the sliding cavity 2, and the outer wall of the extension rod 20 is sleeved with a spring 7 between the top ring 6 and the rear cavity wall of the sliding cavity 2. One end of the spring 7 is connected to the rear side of the top ring 6, and the other end is connected to the rear cavity wall of the sliding cavity 2. When the spring 7 is in a natural elongation state, the rear end of the extension rod 20 leaves a gap with the front end of the inductor 4. By setting the top ring 6 and the spring 7, the extension rod 20 and the inductor 4 can be separated in the natural elongation state of the spring 7, avoiding the false touch of the extension rod 20 and the inductor 4 due to the sliding of the extension rod 20 towards the inductor 4 during movement. When the extension rod 20 contacts the detection position, the spring 7 is compressed by the top touch of the extension rod 20 and the detection position, so that the extension rod 20 moves towards the inductor 4 until it contacts the inductor 4 and triggers the inductor 4.
[0023] The hole bottom of the mounting hole 3 is connected to the rear cavity wall of the sliding cavity 2 through a communication hole 8. Through the communication hole 8, the extension rod 20 can be easily inserted into the mounting hole 3 to contact the inductor 4.
[0024] The extension shell 1 includes a front shell 9 and a rear shell 10. The front end of the rear shell 10 is provided with a connecting groove 11, and the rear end of the front shell 9 is mounted in the connecting groove 11. The sliding cavity 2 is arranged in the front shell 9, and the rear end of the sliding cavity 2 is communicated with the connecting groove 11. By connecting the front shell 9 and the rear shell 10, the front shell 9 and the rear shell 10 can be separated when the extension rod 20 and the spring 7 need to be adjusted.
[0025] The groove wall of the connecting groove 11 is provided with a first thread, and the outer wall of the rear end of the front shell 9 is provided with a second thread. The first thread and the second thread are screw matched and connected. By setting the first thread and the second thread, the convenience and stability of the connection between the front shell 9 and the rear shell 10 can be improved.
[0026] The outer wall of the inductor 4 is sleeved with a mounting ring 12, and the mounting ring 12 is provided with a through hole 13 penetrating front and back. The rear end of the extension shell 1 is provided with a threaded hole 14 at the edge of the mounting hole 3. When the through hole 13 and the threaded hole 14 are aligned, they are fixed by a fixing bolt 15. By setting the mounting ring 12, the inductor 4 can be fixed in the mounting hole 3.
[0027] The mounting ring 12 is sleeved on the outer wall of the inductor 4 by welding or bonding. By welding or bonding, the mounting ring 12 can be firmly fixed on the outer wall of the inductor 4.
[0028] The inductor 4 is a contact inductor.
[0029] While the present application has been described with reference to the numerous explanatory embodiments thereof, it is to be understood that various other modifications can be effected within the scope of the application, as described in the claims. More specifically, many variations and modifications will be apparent to those skilled in the art from the description and drawings herein, given the benefit of the description, drawings and claims as a whole. Other uses will be apparent to those skilled in the art.
Claims
1. A probe structure for increasing the inductive distance of an inductor, characterized by, The application relates to a cylinder-shaped extension shell (1) provided with a sliding cavity (2) along the length direction of the extension shell (1), a mounting hole (3) communicating with the sliding cavity (2) is arranged at the rear end of the extension shell (1), and an inductor (4) is arranged in the mounting hole (3); a sliding hole (5) communicating with the sliding cavity (2) is arranged at the front end of the extension shell (1), and an extension rod (20) is arranged in the sliding hole (5) and slides in the sliding hole (5); the front end of the extension rod (20) is arranged in front of the extension shell (1), the rear end of the extension rod (20) is arranged in the sliding cavity (2) and is aligned with the inductor (4).
2. The probe structure for increasing the inductive distance of an inductor according to claim 1, wherein: A top ring (6) is arranged on the outer wall of the extension rod (20) in the sliding cavity (2), a spring (7) is arranged on the outer wall of the extension rod (20) between the top ring (6) and the rear cavity wall of the sliding cavity (2), one end of the spring (7) is connected with the rear side of the top ring (6), the other end of the spring (7) is connected with the rear cavity wall of the sliding cavity (2), and a gap is left between the rear end of the extension rod (20) and the front end of the inductor (4) when the spring (7) is in a natural elongation state.
3. The probe structure for increasing the inductive distance of an inductor of claim 1, wherein: The bottom of the mounting hole (3) is connected with the rear cavity wall of the sliding cavity (2) through a communication hole (8).
4. The probe structure for increasing the inductive distance of an inductor of claim 1, wherein: The extension shell (1) comprises a front shell (9) and a rear shell (10), a connecting groove (11) is arranged at the front end of the rear shell (10), the rear end of the front shell (9) is arranged in the connecting groove (11), the sliding cavity (2) is arranged in the front shell (9), and the rear end of the sliding cavity (2) communicates with the connecting groove (11).
5. A probe structure for increasing the inductive distance of an inductor according to claim 4, characterized in that: The groove wall of the connecting groove (11) is provided with a first thread, the outer wall of the rear end of the front shell (9) is provided with a second thread, and the first thread and the second thread are threadedly matched and connected.
6. The probe structure for increasing the inductive distance of an inductor of claim 1, wherein: An installation ring (12) is arranged on the outer wall of the inductor (4), through holes (13) penetrating the front and the rear are arranged on the installation ring (12), threaded holes (14) are arranged at the edges of the mounting hole (3) at the rear end of the extension shell (1), and the through holes (13) and the threaded holes (14) are aligned and fixed through fixing bolts (15).
7. A probe structure for increasing the inductive distance of an inductor according to claim 6, characterized in that: The installation ring (12) is arranged on the outer wall of the inductor (4) through welding or adhesive fixing.
8. The probe structure for increasing the inductive distance of an inductor of claim 1, wherein: The inductor (4) is a contact inductor.