Workpiece clamping device for CT (Computed Tomography) detection system

Abstract

The utility model discloses a workpiece clamping device for a CT (Computed Tomography) detection system, which comprises a rotary connecting seat, a positioning seat and at least two fixing components arranged on the positioning seat, the positioning seat is mounted on the rotary connecting seat and can rotate along the central axis of the rotary connecting seat, each fixing assembly comprises an elastic rod detachably connected with the positioning seat and a fixing seat connected with the elastic rod, and a plurality of limiting grooves for mounting the elastic rod are formed in the positioning seat. According to the workpiece clamping device for the CT detection system, modular design is achieved, the fixing bases can be rapidly assembled and adjusted at any time according to the specific forms of different workpieces to be detected, the requirements of the workpieces to be detected of different sizes and weights can be met, the fixing bases of different specifications are adopted to make contact with the workpieces to be detected, and the working efficiency is improved. Therefore, the purpose of safety monitoring is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of nuclear power plant detection, in particular to a workpiece clamping device for a CT detection system. Background Art

[0002] In a nuclear power plant, for some workpieces, the method of rotating and scanning the workpieces with X-rays is adopted to detect indexes such as the quality and integrity of the workpieces. In CT detection, due to the unique shapes and weights of various workpieces to be measured, higher requirements are put forward for the support device. Traditional fixed fixtures are difficult to adapt to workpieces with complex geometric shapes, resulting in difficulty in fixing and thus realizing detection. Now, a tool is needed to overcome the deficiencies in the prior art that it is difficult to accurately and stably clamp special-shaped workpieces. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a workpiece clamping device for a CT detection system.

[0004] The technical solution adopted by the utility model to solve its technical problems is: to construct a workpiece clamping device for a CT detection system, which includes a rotary connection seat, a positioning seat, and at least two fixing components installed on the positioning seat, and at least two of the fixing components jointly clamp the workpiece to be measured;

[0005] The positioning seat is installed on the rotary connection seat and can rotate along the central axis of the rotary connection seat;

[0006] Each of the fixing components includes an elastic rod detachably connected to the positioning seat and a fixing seat connected to the elastic rod, and a plurality of limiting grooves for installing the elastic rod are formed on the positioning seat.

[0007] In some embodiments, a plurality of the limiting grooves are arranged along both the length direction and the width direction of the positioning seat.

[0008] In some embodiments, the fixing seat includes a main body portion connected to the elastic rod and a clamping portion integrally formed with the main body portion and used for clamping the workpiece to be measured.

[0009] In some embodiments, the main body portion is detachably connected to the elastic rod, or the main body portion is integrally formed with the elastic rod.

[0010] In some embodiments, the clamping portion is a rectangular plate-like structure.

[0011] In some embodiments, the clamping portion includes a pair of limiting bodies arranged on the side end surface of the main body portion, and the pair of limiting bodies are symmetrically arranged with respect to the central plane of the main body portion, and a clamping space for accommodating the workpiece to be measured is formed between the pair of limiting bodies.

[0012] In some embodiments, the clamping portion includes a pair of retaining bodies and a connecting body. The pair of retaining bodies and the connecting body are both disposed on the side end surface of the main body portion. The pair of retaining bodies are symmetrically arranged with respect to the central plane of the main body portion, and the pair of retaining bodies are commonly connected to the connecting body.

[0013] In some embodiments, the upper end surface of the clamping portion is flush with the upper end surface of the main body portion, and a receiving groove for receiving a workpiece to be measured is provided on the clamping portion.

[0014] In some embodiments, both the elastic rod and the fixed seat are made of elastic plastic material.

[0015] In some embodiments, the rotary connecting seat is made of stainless steel.

[0016] Implementing the present utility model has the following beneficial effects: The workpiece clamping device for a CT detection system can switch the orientation according to the detection requirements of different workpieces to be measured by setting a rotary connecting seat. Moreover, the elastic rod and the positioning seat are detachably connected, realizing modular design. The fixed seat can be quickly assembled and adjusted at any time according to the specific shape of different workpieces to be measured, and can meet the requirements of workpieces to be measured with different sizes and weights. A variety of fixed seats with different specifications are used to contact the workpiece to be measured to achieve the purpose of safety monitoring. The workpiece clamping device for a CT detection system can improve the stability of fixing the workpiece to be measured, reduce the probability of damage to the workpiece to be measured during detection, and improve the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the present utility model, the present utility model will be further described below in conjunction with the drawings and embodiments. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts. In the drawings:

[0018] Figure 1 is the overall structural schematic diagram of the first structural form of the workpiece clamping device for a CT detection system of the present utility model;

[0019] Figure 2 is the structural schematic diagram of the second structural form of the workpiece clamping device for a CT detection system of the present utility model clamping the workpiece to be measured;

[0020] Figure 3 is the overall structural schematic diagram of the second structural form of the workpiece clamping device for a CT detection system of the present utility model;

[0021] Figure 4It is a schematic structural view of the third structural form of the workpiece clamping device for a CT detection system of the present utility model for clamping a workpiece to be measured;

[0022] Figure 5 It is a schematic overall structural view of the third structural form of the workpiece clamping device for a CT detection system of the present utility model;

[0023] Figure 6 It is a schematic overall structural view of the fourth structural form of the workpiece clamping device for a CT detection system of the present utility model. Detailed implementation manners

[0024] For a clearer understanding of the technical features, objectives, and effects of the present utility model, the detailed implementation manners of the present utility model will now be described with reference to the accompanying drawings. In the following description, it should be understood that the orientation or positional relationships indicated by "front", "rear", "upper", "lower", "left", "right", "longitudinal", "transverse", "vertical", "horizontal", "top", "bottom", "inner", "outer", "head", "tail", etc. are based on the orientation or positional relationships shown in the drawings and are constructed and operated in a specific orientation, only for the convenience of describing the present technical solution, rather than indicating that the device or element referred to must have a specific orientation, so it should not be construed as a limitation to the present utility model.

[0025] It should also be noted that unless otherwise clearly specified and defined, terms such as "installation", "connection", "connection", "fixation", "setting", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between two elements. When an element is referred to as being "above" or "below" another element, the element can be "directly" or "indirectly" located above the other element, or there may also be one or more intermediate elements. Terms such as "first", "second", "third", etc. are only for the convenience of describing the present technical solution and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first", "second", "third", etc. may explicitly or implicitly include one or more of such features. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0026] Refer to Figures 1 to 6, which is a workpiece clamping device for a CT detection system in some embodiments of the present utility model. It includes a rotary connecting seat 1, a positioning seat 2, and at least two fixing components 3 installed on the positioning seat 2. The at least two fixing components 3 jointly clamp the workpiece 4 to be measured. In practical applications, two or more fixing components 3 can be used to jointly clamp the workpiece 4 to be measured, which can be adjusted according to actual situations. In addition, the positioning seat 2 is installed on the rotary connecting seat 1 and can rotate along the central axis of the rotary connecting seat 1. Each fixing component 3 includes an elastic rod 31 detachably connected to the positioning seat 2 and a fixing seat 32 connected to the elastic rod 31. The positioning seat 2 is provided with a plurality of limiting grooves 21 for installing the elastic rod 31.

[0027] Specifically, an electric drive or manual drive can be used to rotate the positioning seat 2 along the central axis of the rotary connecting seat 1. The elastic rod 31 is detachably connected to the positioning seat 2 and can be installed at the limiting grooves 21 in different positions according to different specifications of the workpiece 4 to be measured. The fixing seat 32 can be switched according to different specifications of the workpiece 4 to be measured to ensure stable clamping of the workpiece 4 to be measured. It can be understood that the workpiece clamping device for the CT detection system can switch the orientation according to the detection requirements of different workpieces 4 to be measured by setting the rotary connecting seat 1. Moreover, the elastic rod 31 is detachably connected to the positioning seat 2, realizing modular design. The fixing seat 32 can be quickly assembled and adjusted according to the specific shape of different workpieces 4 to be measured at any time, meeting the requirements of workpieces 4 to be measured with different sizes and weights. A variety of fixing seats 32 with different specifications are used to contact the workpiece 4 to be measured to achieve the purpose of safety monitoring. The workpiece clamping device for the CT detection system can improve the stability of fixing the workpiece 4 to be measured, reduce the probability of damage to the workpiece 4 during detection, and improve the detection efficiency.

[0028] Among them, both the elastic rod 31 and the fixing seat 32 are made of elastic plastic material. The elastic plastic material is preferably PLA plastic material. The elastic rod 31 and the fixing seat 32 can be made by 3D printing, which is suitable for mass production and convenient for quickly matching the workpiece 4 to be measured, and has the characteristics of fast production speed, customization, and fast realization. The elastic rod 31 and the fixing seat 32 utilize the characteristics of the elastic plastic material with both elasticity and stiffness to automatically adjust the clamping force on the workpiece 4 to be measured. And because it is made of plastic material, it can ensure that the workpiece 4 to be measured is not damaged, achieving the best clamping effect. At the same time, it can ensure the service life, reduce costs, and be friction-resistant under the condition of ensuring functions, and is suitable for long-term use in normal detection environments.

[0029] In addition, the rotary connecting seat 1 is made of stainless steel material, which can ensure the rigidity and strength of the rotary connecting seat 1.

[0030] Furthermore, a plurality of the limiting grooves 21 are provided along both the length direction and the width direction of the positioning seat 2. In this embodiment, the limiting grooves 21 are located at the middle position of the positioning seat 2, and the overall arrangement of the limiting grooves 21 is in a cross shape.

[0031] Among them, the fixing seat 32 includes a main body portion 321 connected to the elastic rod 31 and a clamping portion 322 integrally formed with the main body portion 321 and used for clamping the workpiece 4 to be measured. The main body portion 321 is detachably connected to the elastic rod 31, or the main body portion 321 is integrally formed with the elastic rod 31. More specifically, the main body portion 321 is generally in an L-shaped structure, and the main body portion 321 can be detachably connected to the elastic rod 31 by bolts. The fixed height of the main body portion 321 can be determined according to the specifications of the workpiece 4 to be measured or the requirements of the detection. Alternatively, the main body portion 321 can also be integrally formed with the elastic rod 31 by 3D printing.

[0032] In this embodiment, in order to adapt to workpieces 4 to be measured with different specifications, shapes and sizes, the clamping portion 322 can be in a variety of different structural forms. For example Figure 1 As shown, the first structural form of the clamping portion 322 is: the clamping portion 322 is in a rectangular plate-like structure, and the clamping portion 322 is specifically located at the lower part of the side end face of the main body portion 321 to lift the workpiece 4 to be measured. The first structural form of the clamping portion 322 is a general form.

[0033] For example Figure 2 and Figure 3 As shown, the second structural form of the clamping portion 322 is: the clamping portion 322 includes a pair of limiting bodies 3221 provided on the side end face of the main body portion 321. The pair of limiting bodies 3221 are symmetrically arranged with respect to the central plane of the main body portion 321. A clamping space for accommodating the workpiece 4 to be measured is formed between the pair of limiting bodies 3221, and the workpiece 4 to be measured can be placed in the clamping space to be fixed. The cross-section of the limiting body 3221 in its height direction is a right trapezoid.

[0034] For example Figure 4 and Figure 5 As shown, the third structural form of the clamping portion 322 is: the clamping portion 322 includes a pair of retaining bodies 3222 and a connecting body 3223. The pair of retaining bodies 3222 and the connecting body 3223 are all provided on the side end face of the main body portion 321. The pair of retaining bodies 3222 are symmetrically arranged with respect to the central plane of the main body portion 321 and the pair of retaining bodies 3222 are commonly connected to the connecting body 3223. The connecting body 3223 is specifically located at the lower part of the side end face of the main body portion 321. While the connecting body 3223 plays a role in lifting, the retaining body 3222 plays a role in positioning and limiting.

[0035] For example Figure 6As shown in the figure, the fourth structural form of the clamping portion 322 is as follows: the upper end surface of the clamping portion 322 is flush with the upper end surface of the main body portion 321. A receiving groove 3224 for receiving the workpiece 4 to be measured is provided on the clamping portion 322. The receiving groove 3224 can be set to various different depths to cope with workpieces 4 to be measured of different sizes.

[0036] In other embodiments, the clamping portion 322 is not limited to the above four structural forms and can be adjusted and modified according to the actual requirements of the workpiece 4 to be measured.

[0037] The usage process of the workpiece clamping device for the CT detection system is as follows:

[0038] First, lay the positioning seat 2 flat and check its contour and integrity. Especially focus on checking whether the position connected to the rotary connection seat 1 is intact, and whether there are any damages or openings in the limiting groove 21. Then slowly rotate and fix the positioning seat 2 on the top of the rotary connection seat 1 until it completely enters the installation groove of the rotary connection seat 1, ensuring a tight connection and the positioning seat 2 being in a horizontal state. Select a suitable fixing component 3 according to the workpiece 4 to be measured, and observe whether there are any damages, bends, or elasticity in the elastic rod 31 and the fixing seat 32. After ensuring no problems, install the elastic rod 31 in the corresponding limiting groove 21 according to the detection requirements, ensuring that the elastic rod 31 is inserted firmly without shaking. Then adjust the relative height of the positioning seat 2 to ensure that the multiple positioning seats 2 are horizontal and meet the detection requirements of the workpiece 4 to be measured. If not, the position where the elastic rod 31 is inserted into the limiting groove 21 can be readjusted to adjust the relative height of the positioning seat 2. After the overall installation of the fixing component 3 is completed and inspected for stability, the workpiece 4 to be measured can be placed in it. Then ensure again that the workpiece 4 to be measured is properly supported, clamped, and lifted in the fixing component 3, and then the detection can start.

[0039] It can be understood that the above embodiments only represent the preferred implementation modes of the present invention. The description is relatively specific and detailed, but it cannot be construed as a limitation on the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, the above technical features can be freely combined, and several deformations and improvements can also be made, which all belong to the protection scope of the present invention. Therefore, all equivalent transformations and modifications made to the scope of the claims of the present invention shall fall within the scope covered by the claims of the present invention.

Claims

1. A workpiece clamping device for a CT detection system, characterized in that: It comprises a rotating connection seat (1), a positioning seat (2), and at least two fixing components (3) mounted on the positioning seat (2), wherein the at least two fixing components (3) jointly clamp a workpiece (4) to be measured; The positioning seat (2) is mounted on the rotating connection seat (1) and can perform rotational motion along the central axis of the rotating connection seat (1); Each of the fixing components (3) comprises an elastic rod (31) detachably connected to the positioning seat (2) and a fixing seat (32) connected to the elastic rod (31); the positioning seat (2) is provided with a plurality of limiting grooves (21) for mounting the elastic rods (31).

2. The workpiece clamping device for a CT detection system according to claim 1, characterized in that: A plurality of the limiting grooves (21) are provided along the length direction and the width direction of the positioning seat (2).

3. The workpiece clamping device for a CT detection system according to claim 1, characterized in that: The fixing seat (32) comprises a main body (321) connected to the elastic rod (31), and a clamping portion (322) formed integrally with the main body (321) and used for clamping the workpiece (4) to be measured.

4. The workpiece clamping device for a CT detection system according to claim 3, characterized in that: The main body (321) and the elastic rod (31) are detachably connected, or the main body (321) and the elastic rod (31) are integrally formed.

5. The workpiece clamping device for a CT detection system according to claim 3, characterized in that: The clamping portion (322) is a rectangular plate-shaped structure.

6. The workpiece clamping device for a CT detection system according to claim 3, characterized in that: The clamping portion (322) comprises a pair of limiting bodies (3221) arranged on the side end surface of the main body (321), the pair of limiting bodies (3221) are symmetrically arranged with respect to the central plane of the main body (321), and a clamping space for accommodating the workpiece (4) to be measured is formed between the pair of limiting bodies (3221).

7. The workpiece clamping device for a CT detection system according to claim 3, characterized in that: The clamping portion (322) comprises a pair of retaining bodies (3222) and a connecting body (3223), the pair of retaining bodies (3222) and the connecting body (3223) are both arranged on the side end surface of the main body (321), the pair of retaining bodies (3222) are symmetrically arranged with respect to the central plane of the main body (321), and the pair of retaining bodies (3222) are commonly connected to the connecting body (3223).

8. The workpiece clamping device for a CT detection system according to claim 3, characterized in that: The upper end surface of the clamping portion (322) is arranged flush with the upper end surface of the main body portion (321), and the clamping portion (322) is provided with a receiving groove (3224) for receiving a workpiece (4) to be measured.

9. The workpiece clamping device for a CT detection system according to claim 1, characterized in that: The elastic rod (31) and the fixing seat (32) are both made of elastic plastic material.

10. The workpiece clamping device for a CT detection system according to claim 1, characterized in that: The rotating connection seat (1) is made of stainless steel.

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