Inspection device equipped with convenient clamping fixture

By designing a convenient clamping fixture, the steel pipe is stably clamped and rotated using a clamping base and an inflatable bladder. This solves the problem of low inspection efficiency caused by frequent clamping in existing technologies, and achieves comprehensive weld inspection and high-efficiency inspection results.

CN223500996UActive Publication Date: 2025-10-31QINGDAO QINGSHUO MASCH EQUIP CO LTD
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Patent Information

Application Number
CN202422856318.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-22
Publication Date
2025-10-31
Estimated Expiration
2034-11-22

AI Technical Summary

Technical Problem

Existing fixtures require frequent clamping when inspecting steel pipe welds, resulting in low inspection efficiency and time consumption, and cannot achieve comprehensive weld inspection.

Method used

A convenient clamping fixture was designed, including a clamping base, a clamping component, and an inflatable bladder. By rotating the clamping component and fixing the inflatable bladder, the steel pipe can be stably clamped and rotated axially, avoiding frequent clamping adjustments.

Benefits of technology

It improves the stability and efficiency of detection, reduces the probability of missed detection, and enhances the convenience and flexibility of detection.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223500996U_ABST
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Abstract

The inspection device comprises a device body, clamping bases and a clamping piece, a workbench is arranged at the top of the front face of the device body, a clamp bottom plate is installed at the top of the workbench, the clamping bases are arranged at the left position and the right position of the top of the clamp bottom plate respectively, and the specifications of the two sets of clamping bases are completely the same. A butt joint cavity is formed in the upper portions of the left side face and the right side face of the clamping base in a penetrating mode, the butt joint cavity is of a circular structure, a plurality of sets of positioning grooves are annularly distributed in the inner side of the butt joint cavity, and a clamping piece is movably installed in the butt joint cavity in an embedded mode. The inflation bag expands to stably clamp the steel pipe, the stability during detection is guaranteed, the positioning strip, the spring and the positioning groove are arranged, the positioning strip is inserted into the positioning groove under the elastic force effect of the spring, the steel pipe is positioned after being axially rotated, the position of a welding seam can be flexibly changed, and use is convenient and flexible.
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Description

Technical Field

[0001] This utility model belongs to the field of inspection device technology, and specifically relates to an inspection device equipped with a convenient clamping fixture. Background Technology

[0002] Inspection devices are tools and equipment used to measure, evaluate, or verify the size, shape, quality, or performance of objects. They are widely used in various industries, such as manufacturing, construction, and the automotive industry. In steel pipe welding operations, inspection devices are needed in conjunction with clamps to inspect the weld seams of steel pipes to detect cracks that are difficult to detect with the naked eye. The clamps hold the steel pipe to facilitate inspection of the weld seams. However, existing clamps for tubular welded components like steel pipes have limited inspection range because the pipe is fixed in place. To perform a comprehensive inspection of the weld seam, the pipe needs to be clamped multiple times. While this method is effective, frequent clamping reduces inspection efficiency. Furthermore, frequent clamping requires more time for clamp adjustments. Therefore, a new structure is proposed to address these issues. Summary of the Invention

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an inspection device equipped with a convenient clamping fixture.

[0004] This utility model is achieved through the following technical solution: an inspection device equipped with a convenient clamping fixture, comprising: a device body, a clamping base and a clamping component, wherein a workbench is provided on the top front of the device body, a clamping base plate is installed on the top of the workbench, and clamping bases are respectively provided on the left and right sides of the top of the clamping base plate.

[0005] The two sets of clamping bases are identical in specifications. The clamping bases are provided with a docking cavity through the upper left and right sides. The docking cavity is a circular structure. Several sets of positioning grooves are distributed in a ring on the inner side of the docking cavity. A clamping component is embedded and movably installed inside the docking cavity.

[0006] An air inlet is provided through the lower right side of the clamping member. The clamping member has a hollow structure and contains an air bladder. A positioning strip is provided at the top of the clamping member, and the positioning strip is aligned with the positioning groove. A cavity is opened inside the curved side of the clamping member, and several sets of springs are provided inside the cavity. Clamping grooves are provided through the left and right sides of the clamping member.

[0007] In a preferred embodiment, the fixture base plate is provided with mounting plates on the lower front and rear sides, the workbench has mounting holes pre-set on the top, the mounting plates are connected and fixed to the mounting holes by bolts, and a detection head is provided on the top of the workbench.

[0008] In a preferred embodiment, the clamp base plate and the two sets of clamping bases are an integral structure. The centers of the two sets of docking cavities are on the same horizontal line. The radius length and width of the docking cavity match the radius length and width of the clamping component, ensuring that the steel pipe is in a horizontal state after being clamped, and at the same time ensuring that the weld of the steel pipe can be fully exposed directly below the weld joint, which is convenient for inspection.

[0009] In a preferred embodiment, the radius of the openings on the left and right sides of the docking cavity is smaller than the radius of the clamping member, and the radius of the interior of the docking cavity matches the radius of the clamping member.

[0010] In a preferred embodiment, the positioning strip is embedded in the inner side of the curved side of the clamping member. The side of the positioning strip away from the center of the clamping member is a semi-cylindrical structure, while the side of the positioning strip near the center of the clamping member is inside a cavity. The spring inside the cavity uses its elasticity to retract and pop out the positioning strip, thereby allowing the positioning strip to be intermittently inserted into the positioning groove during movement. This achieves a fixed-length axial rotation of the steel pipe, resulting in the weld seam ring being presented 360 degrees directly below the weld head, facilitating clamping and making inspection more accurate.

[0011] In a preferred embodiment, the airbag is located inside the clamping member, and the clamping member has an extension groove on its inner side. The width of the airbag is greater than the width of the extension groove. The airbag is made of polyvinyl chloride. By inflating the airbag, the outer surface of the steel pipe is compressed, thereby fixing the steel pipe. The effect is that the clamping is convenient and the use is flexible.

[0012] In a preferred embodiment, the lower right side of the inflatable bladder is connected to the left side of the inflation port.

[0013] The beneficial effects of this utility model after adopting the above technical solution are as follows: By setting clamping bases, clamping components, and inflatable bladders, the steel pipe is inserted into the inner side of two sets of clamping bases, so that the outer side of the steel pipe is clamped by two sets of clamping components. Then, the inflatable bladder is inflated through the inflation port, causing the inflatable bladder to expand and fit tightly against the outer surface of the steel pipe, thereby stably clamping the steel pipe and ensuring the stability of the steel pipe during testing. By setting positioning bars, springs, and positioning grooves, after the steel pipe is stably clamped, both ends of the steel pipe can be held and rotated. The friction between the inflatable bladder and the outer surface of the steel pipe causes the two sets of clamping parts to rotate inside the docking cavity. This, in turn, causes the positioning strip to rotate along the inner side of the docking cavity. Whenever the positioning strip aligns with a set of positioning grooves, the positioning strip is inserted into the positioning groove under the elastic force of the spring, thereby axially rotating and positioning the steel pipe. This eliminates the need to re-clamp the steel pipe, allowing for axial rotation and changing the position of the weld seam below the inspection head. Ultimately, this eliminates the need for frequent clamp adjustments, enabling flexible changes to the weld seam position and making the system convenient and flexible to use. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of an inspection device equipped with a convenient clamping fixture according to the present invention.

[0016] Figure 2 This is an assembly diagram of the clamping base and clamping components in an inspection device equipped with a convenient clamping fixture according to the present invention.

[0017] Figure 3 This is a schematic diagram of the positioning groove and docking cavity in an inspection device equipped with a convenient clamping fixture according to the present invention.

[0018] Figure 4 This is a schematic diagram of the structure of the docking parts in an inspection device equipped with a convenient clamping fixture according to this utility model.

[0019] Figure 5 This is a schematic diagram of the spring in an inspection device equipped with a convenient clamping fixture according to the present invention.

[0020] In the diagram, 100 represents the main body of the device, and 110 represents the workbench.

[0021] 200-Clamp base plate, 201-Mounting plate, 210-Clamping base, 211-Mating cavity, 212-Positioning groove;

[0022] 300-Clamping component, 301-Clamping groove, 302-Positioning strip, 303-Spring, 310-Inflatable bladder, 311-Inflatable port. 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 one aspect of the present utility model, and not all aspects. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0024] Please see Figures 1 to 5 An inspection device equipped with a convenient clamping fixture includes: a device body 100, a clamping base 210 and a clamping component 300. A workbench 110 is provided on the top front of the device body 100, a clamping base plate 200 is installed on the top of the workbench 110, and clamping bases 210 are respectively provided on the left and right sides of the top of the clamping base plate 200.

[0025] The two sets of clamping bases 210 have the same specifications. The clamping bases 210 have a through-hole 211 on the upper left and right sides. The 211 is a circular structure. Several sets of positioning grooves 212 are distributed in a ring on the inner side of the 211. The clamping component 300 is embedded and movably installed inside the 211.

[0026] An air inlet 311 is provided through the lower right side of the clamping member 300. The clamping member 300 has a hollow structure inside and an air bladder 310 is provided inside. A positioning strip 302 is provided on the top of the clamping member 300. The positioning strip 302 is aligned with the positioning groove 212. A cavity is opened inside the curved side of the clamping member 300. Several sets of springs 303 are provided inside the cavity. A clamping groove 301 is provided through the left and right sides of the clamping member 300.

[0027] The fixture base plate 200 has mounting plates 201 on the lower front and rear sides. The worktable 110 has mounting holes pre-set on the top. The mounting plates 201 are connected and fixed to the mounting holes by bolts. The worktable 110 has a detection head on top.

[0028] The fixture base plate 200 and the two sets of clamping bases 210 are integrated into one structure. The centers of the two sets of docking cavities 211 are on the same horizontal line. The radius length and width of the docking cavity 211 match the radius length and width of the clamping component 300, ensuring that the steel pipe is in a horizontal state after being clamped, and at the same time ensuring that the weld of the steel pipe can be fully exposed directly below the weld joint, which is convenient for inspection.

[0029] The radius of the openings on the left and right sides of the docking cavity 211 is smaller than the radius of the clamping member 300, and the radius of the interior of the docking cavity 211 matches the radius of the clamping member 300.

[0030] The positioning strip 302 is embedded in the curved side of the clamping member 300. The side of the positioning strip 302 away from the center of the clamping member 300 is a semi-cylindrical structure, and the side of the positioning strip 302 close to the center of the clamping member 300 is inside the cavity. The spring 303 inside the cavity can retract and pop out the positioning strip 302 by using elastic force. Then, the positioning strip 302 can be intermittently inserted into the positioning groove 212 in the moving state, thereby realizing the fixed-length axial rotation of the steel pipe. This makes the weld gap ring 306 degrees appear directly below the weld head, which facilitates clamping and makes the inspection more accurate.

[0031] The airbag 310 is located inside the clamping member 300. The clamping member 300 has an extension groove on its inner side. The width of the airbag 310 is greater than the width of the extension groove. The airbag 310 is made of polyvinyl chloride. The airbag 310 is inflated to compress the outer surface of the steel pipe, thereby fixing the steel pipe. The effect is that it is convenient to clamp and easy to use.

[0032] The lower right side of the inflatable bladder 310 is connected to the left side of the inflation port 311, which facilitates the inflation of the inflatable bladder 310 through the inflation port 311, causing it to expand and compress the outer side of the steel tube.

[0033] Example 1: Please refer to Figure 1 , Figure 2 , Figure 4 and Figure 5 In actual use, firstly, the two sets of mounting plates 201 are installed and fixed to the upper surface of the workbench 110 using four sets of bolts, so that the fixture base plate 200 is directly below the detection head. Then, the welded steel pipe is picked up and inserted into the left and right clamping slots 301 respectively, so that the steel pipe is temporarily clamped by the two sets of clamping bases 210. At this time, the steel pipe is not completely fixed. The position of the steel pipe is slightly adjusted left and right so that the welded part of the steel pipe is directly below the detection head. Then, an air cylinder is inserted into the two sets of air inlets 311 to inflate the air bladders 310 inside the two sets of clamping parts 300, so that... The air bladder 310 inflates and extends into the clamping groove 301 through the extension slot on the side closest to the center of the clamping groove 301. It gradually presses against the outside of the steel pipe. As the air bladder 310 continues to inflate, the steel pipe is completely compressed by the two sets of air bladders 310. Inflation stops, and the clamping of the steel pipe is completed. The final effect is that the steel pipe is clamped by the two sets of clamping parts 300, and the position of the steel pipe is fixed by the compression of the outside of the steel pipe by the two sets of air bladders 310, so that it cannot move left or right, which increases the stability of the detection. The final effect is to greatly improve the convenience and stability of steel pipe clamping.

[0034] Example 2: Please refer to Figure 3 , Figure 4 and Figure 5 After clamping, hold the left and right sides of the steel pipe and gently rotate it clockwise. Due to the pressure between the outer side of the steel pipe and the two sets of inflatable bladders 310, the steel pipe rotates under the action of friction, causing the clamping part 300 to rotate inside the docking cavity 211. During the rotation, the positioning strip 302 rotates clockwise around the side of the docking cavity 211. It is known that the interval length between two adjacent sets of positioning grooves 212 is 0.5cm. When the positioning strip 302 moves to the position opposite to the positioning groove 212, the positioning strip 302 is inserted into the positioning groove 212 under the action of the spring 303. Continue to rotate the steel pipe. Because the protruding part of the positioning strip 302 is a semi-cylindrical structure, it will squeeze the positioning strip 302 to retract and squeeze the spring 303. When the positioning strip 302 is aligned with the positioning groove 212 again, the spring 303 will rebound again to insert the positioning strip 302 into the positioning groove 212, thereby realizing the fixed-length axial rotation of the steel pipe. This ensures that every part of the weld is directly below the inspection head. The final effect is that the weld of the steel pipe can be inspected 360 degrees without frequent adjustment of the fixture, which greatly improves the inspection efficiency and reduces the probability of missed inspections. It is also convenient to use.

[0035] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An inspection device equipped with a convenient clamping fixture, comprising: The device body (100), clamping base (210) and clamping component (300) are characterized in that: a workbench (110) is provided on the top front of the device body (100), a clamping base plate (200) is installed on the top of the workbench (110), and clamping bases (210) are respectively provided on the left and right sides of the top of the clamping base plate (200). The two sets of clamping bases (210) have the same specifications. The clamping base (210) has a through-hole (211) on the upper left and right sides. The through-hole (211) is circular. The inside of the through-hole (211) has a number of positioning grooves (212) arranged in a ring. The clamping member (300) is embedded and movably installed inside the through-hole (211). An air inlet (311) is provided through the lower right side of the clamping member (300). The clamping member (300) has a hollow structure inside and an air bladder (310) is provided inside. A positioning strip (302) is provided on the top of the clamping member (300). The positioning strip (302) is aligned with the positioning groove (212). A cavity is provided inside the curved side of the clamping member (300). Several sets of springs (303) are provided inside the cavity. A clamping groove (301) is provided through the left and right sides of the clamping member (300).

2. The inspection device equipped with a convenient clamping fixture as described in claim 1, characterized in that: The fixture base plate (200) has an installation plate (201) on its front and rear sides. The workbench (110) has a pre-set installation hole on its top. The installation plate (201) is connected and fixed to the installation hole by bolts. The workbench (110) has a detection head on its top.

3. The inspection device equipped with a convenient clamping fixture as described in claim 1, characterized in that: The clamp base plate (200) and the two sets of clamping bases (210) are an integral structure. The centers of the two sets of docking cavities (211) are on the same horizontal line. The radius length and width of the docking cavity (211) match the radius length and width of the clamping member (300).

4. The inspection device equipped with a convenient clamping fixture as described in claim 3, characterized in that: The radius length of the openings on the left and right sides of the docking cavity (211) is less than the radius length of the clamping member (300), and the radius length inside the docking cavity (211) matches the radius length of the clamping member (300).

5. The inspection device equipped with a convenient clamping fixture as described in claim 1, characterized in that: The positioning strip (302) is embedded in the inner side of the curved side of the clamping member (300). The side of the positioning strip (302) away from the center of the clamping member (300) is a semi-cylindrical structure, and the side of the positioning strip (302) close to the center of the clamping member (300) is inside the cavity.

6. The inspection device equipped with a convenient clamping fixture as described in claim 1, characterized in that: The inflatable bladder (310) is located inside the clamping member (300), and the clamping member (300) has an extension groove on its inner side. The width of the inflatable bladder (310) is greater than the width of the extension groove. The material of the inflatable bladder (310) is polyvinyl chloride.

7. The inspection device equipped with a convenient clamping fixture as described in claim 6, characterized in that: The right side of the inflatable bladder (310) is connected to the left side of the inflation port (311).