Weld joint detection device
By designing a weld inspection device with a support rod, universal connector, and sliding connector, the problem of unstable inspection of arc-shaped welded parts was solved, and the accuracy of weld hardness detection was improved.
Patent Information
- Application Number
- CN202423142240.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-19
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2034-12-19
AI Technical Summary
During the weld hardness test of welded parts, the bottom of the arc surface cannot be stably supported, which leads to deviation in the test results and affects the accuracy of the test.
A weld inspection device was designed, comprising a support rod, a universal connector, and a sliding connector. The support plate provides stable support for the bottom of the arc surface, and an electric pressing inspection head is used for inspection. The support position is adjusted by a buffer airbag and an electric drive rod to ensure the stability of the welded part during the inspection process.
It achieves stable support for arc-shaped welded parts, avoids shaking of the welded parts during inspection, and improves the accuracy of weld hardness testing.
Smart Images

Figure CN223870631U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of welding inspection technology, and specifically relates to a weld inspection device. Background Technology
[0002] Due to different welding processes and materials, the hardness of the weld and heat-affected zone should be within a reasonable range. Abnormally high or low hardness may indicate improper welding techniques or defects. For example, when welding certain alloy steels, excessive hardness can lead to weld embrittlement. Hardness testing can detect this in time, allowing for adjustments to the welding process. Therefore, weld hardness testing is necessary. When testing weld hardness, the welded part is placed on the support surface of the detector, and the hardness of the weld joint is measured by pressing down on the detection head. However, because the bottom of the weld joint surface of some welded parts is curved, the bottom of the curved surface cannot be stably tested on the support surface, leading to deviations in the final weld hardness test results. Utility Model Content
[0003] This utility model provides a weld seam inspection device, which ensures that the entire welded part is in a stable state during weld seam hardness testing, and avoids the decrease in accuracy of weld seam hardness testing due to shaking during the weld seam hardness testing.
[0004] This utility model provides the following technical solution: a weld inspection device, including a mounting control base, a connecting base fixedly connected to the top of the mounting control base, a support column fixedly connected to the top of the connecting base, a reinforcing base fixedly connected to the top of the support column, a supporting base fixedly connected to the top of the reinforcing base, connecting frames on both sides of the supporting base, the bottom of the connecting frames being embedded inside the reinforcing base, a support rod sleeved inside the connecting frames, a universal connecting seat rotatably connected to the bottom of the support rod, a sliding connecting seat at the bottom of the universal connecting seat, the universal connecting seat being embedded in the top of the sliding connecting seat, the sliding connecting seat being slidably connected inside the connecting frames, a support plate fixedly connected to the top of the support rod, and an electric downward pressure detection head fixedly connected to the bottom of the top plate of the mounting control base.
[0005] The top of the support plate is fixedly connected with an anti-slip rubber pad.
[0006] The support rod is fitted with a buffer airbag.
[0007] The upper part of the outer side of the buffer airbag has several connecting holes.
[0008] The reinforcing base has an embedded electric drive rod, and the output end of the electric drive rod is fixedly connected to the sliding connecting base.
[0009] The reinforcement base has an internal mounting groove, and the electric drive rod is fixedly connected to the inside of the mounting groove.
[0010] The control panel is fixedly connected to the top of one side of the mounting control base, and the electric pressure detection head and the electric drive rod are connected to the control panel on the outside of the mounting control base through connecting lines.
[0011] The beneficial effects of this utility model are as follows: With the cooperation of the support rod and the support plate, a support member is formed to provide support for the side of the test piece. When performing weld hardness testing on a welded part with an arc bottom surface, the support plate supports the bottom of the welded part, ensuring that the entire welded part is in a stable state during weld hardness testing. This avoids the welded part shaking during weld hardness testing, which could lead to a decrease in the accuracy of the weld hardness test. In addition, with the cooperation of the universal connector and the sliding connector, the support plate can be in a good fit with the bottom surface of different arc surfaces or slopes.
[0012] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description
[0013] Figure 1 This is a side view of the structure of this utility model;
[0014] Figure 2 This is a side view of the structure of the welded parts of the support rod and support plate in this utility model for bottom support;
[0015] Figure 3 This utility model Figure 1 Enlarged detail diagram of section A in the middle;
[0016] Figure 4 This utility model Figure 2 Enlarged detail diagram of section B.
[0017] In the diagram: 1. Mounting control seat; 11. Connecting base; 12. Support column; 13. Reinforcing seat; 131. Mounting slot; 14. Support seat; 2. Connecting frame; 21. Support rod; 22. Universal connector; 23. Sliding connector; 24. Buffer airbag; 241. Connecting hole; 25. Support plate; 251. Anti-slip rubber pad; 26. Electric drive rod; 3. Electric downward pressure detection head. Detailed Implementation
[0018] Please see Figures 1-4 The present invention provides the following technical solution: a weld inspection device, comprising a mounting control base 1, a connecting base 11 fixedly connected to the top of the mounting control base 1, a support column 12 fixedly connected to the top of the connecting base 11, a reinforcing base 13 fixedly connected to the top of the support column 12, a support base 14 fixedly connected to the top of the reinforcing base 13, connecting frames 2 on both sides of the support base 14, the bottom of the connecting frames 2 being embedded inside the reinforcing base 13, a support rod 21 sleeved inside the connecting frames 2, a universal connecting seat 22 rotatably connected to the bottom of the support rod 21, a sliding connecting seat 23 at the bottom of the universal connecting seat 22, the universal connecting seat 22 being embedded in the top of the sliding connecting seat 23, the sliding connecting seat 23 being slidably connected inside the connecting frames 2, a support plate 25 fixedly connected to the top of the support rod 21, and an electric pressing inspection head 3 fixedly connected to the bottom of the top plate of the mounting control base 1.
[0019] In this implementation scheme: the mounting control base 1 serves as the external support for the entire testing device, providing a connection carrier for the various internal components. The connecting base 11, in cooperation with the support column 12, reinforcing base 13, and support base 14, forms a support assembly that supports the test piece within the entire testing device. The support base 14 is the support surface of the entire support assembly. The connecting frames 2 on both sides of the support base 14 provide a connection carrier for the support rod 21. The support rod 21 provides a connection carrier for the support plate 25. With the cooperation of the support rod 21, the support plate 25 forms a support component that provides support to the side of the test piece. Under the support of this component, when performing weld hardness testing on a welded part with an arc-shaped bottom surface, the support plate 25 can support the bottom of the welded part, allowing the entire welded part to withstand the weld hardness test. During hardness testing, the device maintains a stable state, preventing the weld from shaking and reducing the accuracy of hardness testing at the weld seam. The universal connector 22 at the bottom of the support rod 21 is used to adjust the tilt of the support rod 21, allowing it to meet the testing support requirements of different curved or inclined bases. The sliding connector 23 on one side of the universal connector 22 is used to adjust the position of the support rod 21, ensuring that one side of the support plate 25 fits well with the bottom of the weld. The electric pressing detection head 3 at the bottom of the top plate of the mounting control base 1 is the detection component of the entire device. When testing the weld hardness, the electric pressing detection head 3 can be driven to move downwards and press down on the weld on the support base 14.
[0020] An anti-slip rubber pad 251 is fixedly connected to the top of the support plate 25; the anti-slip rubber pad 251 is used to increase the friction between the contact surface with the welded part.
[0021] The support rod 21 is fitted with a buffer airbag 24; the buffer airbag 24 is used to buffer the gap between the support rod 21 and the connecting frame 2.
[0022] The upper part of the outer side of the buffer airbag 24 is provided with several connecting holes 241; the connecting holes 241 are used to balance the internal gas when the buffer airbag 24 buffers the gap between the connecting frame 2 and the support rod 21.
[0023] An electric drive rod 26 is embedded inside the reinforcing seat 13, and the output end of the electric drive rod 26 is fixedly connected to the sliding connecting seat 23; wherein the electric drive rod 26 is used to adjust the position of the sliding connecting seat 23 in the inner cavity of the connecting frame 2.
[0024] The reinforcement base 13 has an internal mounting groove 131, and the electric drive rod 26 is fixedly connected to the inside of the mounting groove 131; wherein the mounting groove 131 is used to provide space for the electric drive rod 26 to be installed.
[0025] A control panel is fixedly connected to the top of one side of the mounting control base 1, and the electric pressure detection head 3 and the electric drive rod 26 are connected to the control panel on the outside of the mounting control base 1 through connecting lines. When it is necessary to test the hardness of the weld of the welded part, the electric drive rod 26, the electric pressure detection head 3 and the various control elements inside the mounting control base 1 can be turned on through the control panel to test the hardness of the weld of the welded part on the top of the support base 14.
[0026] The working principle and usage process of this utility model are as follows: When it is necessary to test the weld hardness of the welded part, the welded part is first placed on the top of the support base 14. Then, the electric drive rod 26 is turned on through the control panel on one side of the control base 1. The position of the end of the support rod 21 is adjusted by the electric drive rod 26 so that the support plate 25 can be in good contact with the outer side of the welded surface. At the same time, the electric pressing detection head 3 is pressed down to complete the test of the weld hardness of the welded part on the top of the support base 14.
Claims
1. A weld inspection device, comprising a mounting control base (1), characterized in that: The top of the installation control base (1) is fixedly connected to a connecting base (11), the top of the connecting base (11) is fixedly connected to a support column (12), the top of the support column (12) is fixedly connected to a reinforcing base (13), the top of the reinforcing base (13) is fixedly connected to a support base (14), both sides of the support base (14) are provided with connecting frames (2), and the bottom of the connecting frame (2) is embedded in the interior of the reinforcing base (13). A support rod (2) is sleeved inside the connecting frame (2). 1), and the bottom of the support rod (21) is rotatably connected to a universal connector (22), and the bottom of the universal connector (22) is provided with a sliding connector (23), and the universal connector (22) is embedded in the top of the sliding connector (23). The sliding connector (23) is slidably connected to the inside of the connecting frame (2). The top of the support rod (21) is fixedly connected to a support plate (25), and the bottom of the top plate of the mounting control seat (1) is fixedly connected to an electric pressure detection head (3).
2. The weld inspection device according to claim 1, characterized in that: The top of the support plate (25) is fixedly connected to an anti-slip rubber pad (251).
3. The weld inspection device according to claim 1, characterized in that: The support rod (21) is fitted with a buffer airbag (24).
4. The weld inspection device according to claim 3, characterized in that: The upper part of the outer side of the buffer airbag (24) is provided with several connecting holes (241).
5. The weld inspection device according to claim 1, characterized in that: The reinforcing base (13) is internally fitted with an electric drive rod (26), and the output end of the electric drive rod (26) is fixedly connected to the sliding connecting base (23).
6. The weld inspection device according to claim 5, characterized in that: The reinforcement base (13) has an installation groove (131) inside, and the electric drive rod (26) is fixedly connected to the inside of the installation groove (131).
7. A weld inspection device according to claim 6, characterized in that: A control panel is fixedly connected to the top of one side of the mounting control base (1), and the electric pressure detection head (3) and the electric drive rod (26) are connected to the control panel on the outside of the mounting control base (1) via connecting lines.