CT detection clamp and detection device

Abstract

The disclosure provides a CT detection clamp and a detection device, the detection clamp comprising: a bottom plate; a clamping plate arranged on the bottom plate, comprising first and second clamping plates arranged opposite to each other; a supporting plate arranged between the first and second clamping plates and rotatably connected with at least one of the first and second clamping plates; and a fastening part penetrating at least one of the first and second clamping plates and configured to be extended to the side of the supporting plate to fasten a to-be-detected piece placed on the supporting plate. The technical scheme is advantageous in realizing detection of a corner of a battery in different directions and angles, making the detection of the corner of the battery in CT detection more convenient and easy, facilitating comprehensive detection of the battery, and being convenient to use and low in operation difficulty.

Description

Technical Field

[0001] The embodiments of this disclosure generally relate to the field of battery testing, and more specifically, to a CT testing fixture and testing equipment. Background Technology

[0002] The integrity and flatness of the lithium battery structure have a significant impact on battery performance. Since the internal structure is not visible after manufacturing and casing, CT (Computed Tomography) inspection is necessary. CT inspection uses X-rays to penetrate the battery and obtain its three-dimensional structural information. During CT inspection, one corner of the battery needs to be inspected from different directions and angles to ensure a comprehensive inspection.

[0003] However, the current testing equipment's clamping devices either cannot meet the requirements for adjusting the battery's angle in different directions, or the battery angle adjustment equipment requires multiple electronic components such as rotary drive motors, transmission parts, and cylinders to cooperate in achieving angle adjustment, resulting in complex structures, cumbersome maintenance, and high costs.

[0004] Therefore, there is an urgent need for a CT inspection fixture that is easy to use, can accommodate adjustments to the battery at different angles, and is low in cost. Utility Model Content

[0005] To address or at least partially address the aforementioned deficiencies, according to embodiments of this disclosure, a CT inspection fixture and inspection device are provided, which can conveniently and effectively clamp and place batteries, and meet the requirements for inspection of batteries at different orientations and angles, and has a simple structure and low cost.

[0006] In a first aspect of this disclosure, a CT examination fixture is provided. The examination fixture includes:

[0007] Base plate;

[0008] A clamping plate, which is disposed on the base plate, includes a first clamping plate and a second clamping plate disposed opposite each other;

[0009] A tray, disposed between the first clamping plate and the second clamping plate, and rotatably connected to at least one of the first clamping plate and the second clamping plate; and

[0010] A fastening part, which passes through at least one of the first clamping plate and the second clamping plate, is configured to extend toward the tray side to fasten the test piece placed on the tray.

[0011] In addition to the aspects described above and any possible implementations, a further implementation is provided in which the pallet is rotatable about a horizontal axis.

[0012] In addition to the aspects and any possible implementations described above, a further implementation is provided in which the pallet is rotatably connected to the first clamping plate via a first connector; and the pallet is rotatably connected to the second clamping plate via a second connector.

[0013] In addition to the aspects and any possible implementations described above, a further implementation is provided in which one of the tray and the first clamp is fixedly connected to one end of the first connector, and the other is rotatably connected to the other end of the first connector.

[0014] One of the tray and the second clamp is fixedly connected to one end of the second connector, and the other is rotatably connected to the other end of the second connector.

[0015] In addition to the aspects described above and any possible implementation, a further implementation is provided in which the tray has a first part and a second part, the first part and the second part extending in different directions, and forming a test piece placement position with a preset angle between them.

[0016] In addition to the aspects and any possible implementations described above, a further implementation is provided in which at least one of the first clamping plate and the second clamping plate is provided with an angle adjustment groove, and the support plate is provided with a fixing position that cooperates with the angle adjustment groove;

[0017] When the tray is rotated to the desired angle, it is fixed in the fixed position by a fastener passing through the angle adjustment groove to secure the tray.

[0018] In addition to the aspects and any possible implementations described above, a further implementation is provided in which the fixing position is an angle adjustment hole, and the angle adjustment hole is provided on the side of the support plate near the first clamping plate and the second clamping plate; the first clamping plate is provided with an angle adjustment groove corresponding to the angle adjustment hole thereon; and the second clamping plate is provided with an angle adjustment groove corresponding to the angle adjustment hole thereon; or,

[0019] The fixing position is an angle adjustment hole, and the angle adjustment hole is provided on one of the sides of the support plate near the first clamping plate and the second clamping plate, and the angle adjustment groove is provided on the clamping plate near the angle adjustment hole.

[0020] In accordance with the aspects and any possible implementations described above, a further implementation is provided, wherein the fastening portion includes:

[0021] A rod that passes through the clamping plate;

[0022] A top plate is disposed at one end of the rod near the support plate; and

[0023] A support portion is provided on the outer surface of the clamp plate to support the rod on the clamp plate.

[0024] In addition to the aspects and any possible implementations described above, a further implementation is provided in which the clamping plate forms a mounting window corresponding to the fastening portion, and a stepped portion is formed on the inner circumferential surface of the mounting window.

[0025] From the inner surface of the clamping plate to the inner periphery of the step portion, the window size of the mounting window decreases, and the window size of the inner periphery of the step portion is smaller than the size of the top plate, so that the top plate can be moved away from the support plate until it abuts against the step portion, thereby restricting the top plate inside the clamping plate.

[0026] In a second aspect of this disclosure, a CT examination apparatus is provided. The apparatus includes a CT examination fixture as described in the first aspect.

[0027] As described above, this disclosure provides a CT inspection fixture and inspection device. A tray mounted on a first and second clamping plate carries the battery to be inspected. The tray is rotatably connected to the first and second clamping plates, allowing it to rotate and thus adjust the inspection angle of the battery placed on the tray. Furthermore, by using angle adjustment holes formed in the tray and angle adjustment grooves formed in the first and second clamping plates, and by employing fasteners, the tray is fixedly positioned at the desired inspection angle, thereby achieving battery angle adjustment. This facilitates the inspection of one corner of the battery from different directions and angles.

[0028] Furthermore, the inspection fixture disclosed herein is easy to use and has low operational difficulty, making it more convenient and easier to inspect the edges and corners of the battery during CT inspection, and making it easier to conduct comprehensive inspection of the battery. Moreover, it does not require the setting and operation of additional electronic components, has a simple structure, and low cost.

[0029] It should be understood that the content described in this disclosure section is not intended to limit the key or essential features of the embodiments of this disclosure, nor is it intended to limit the scope of this disclosure. Other features of this disclosure will become readily apparent from the following description. Attached Figure Description

[0030] The above and other features, advantages, and aspects of the various embodiments of this disclosure will become more apparent from the accompanying drawings and the following detailed description. In the drawings, the same or similar reference numerals denote the same or similar elements, wherein:

[0031] Figure 1 A schematic diagram of the structure of the CT detection fixture provided in the embodiments of this disclosure is shown;

[0032] Figure 2A side view partial structural schematic diagram of a CT detection fixture provided in an embodiment of the present disclosure is shown;

[0033] Figure 3 A schematic diagram of the fastening part of the CT detection fixture provided in the embodiments of this disclosure is shown.

[0034] in, Figures 1 to 3 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0035] 10 base plates, 11 fixing holes;

[0036] 20 Clamping plate, 21 First clamping plate, 22 Second clamping plate, 23 Angle adjustment groove, 24 Step section;

[0037] 30 Support plate, 31 First plane, 32 Second plane, 33 Angle adjustment hole;

[0038] 40 Fastener, 41 Rod, 42 Top plate, 43 Top plate connection, 44 Handle, 45 Support;

[0039] 50 connecting pins. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this disclosure, and not all of them. Based on the embodiments in this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure.

[0041] Furthermore, the term "and / or" in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0042] This disclosure provides a CT inspection fixture and inspection device that can clamp and hold a battery, and the angle of the battery can be adjusted for comprehensive inspection. Furthermore, it has a simple structure and is easy to use.

[0043] The following reference Figures 1 to 3This disclosure describes the CT inspection fixture provided by the embodiments of the present disclosure. In this embodiment, the battery to be inspected is a prismatic battery. The working principle of the inspection fixture is explained using a prismatic battery as an example. Of course, the CT inspection fixture can also be adapted to other types of batteries such as cylindrical batteries, pouch batteries, and blade batteries. Moreover, the CT inspection fixture is not limited to batteries, but is also applicable to other types of devices that require CT inspection. This disclosure does not limit the devices to be inspected for which the CT inspection fixture is applicable; it is applicable to any scenario where the device to be inspected needs to be fixed and the angle changed.

[0044] like Figure 1 As shown, the CT detection fixture provided according to an embodiment of the first aspect of this disclosure includes a base plate 10, a clamping plate 20, a support plate 30, and a fastening part 40.

[0045] The base plate 10 supports the clamping plate 20 and the support plate 30, and is fixed to the CT detection equipment. A fixing hole 11 is formed on the side of the base plate 10 for connecting and fixing the base plate 10 to the CT detection equipment. In this embodiment, the fixing hole 11 is formed as an elongated slotted hole. In other embodiments, the fixing hole 11 can be formed in other shapes, as long as the base plate 10 can be connected and fixed to the actual CT detection equipment through the fixing hole 11. Of course, in other embodiments, the connection and fixation of the base plate 10 to the CT detection equipment can also be achieved without the fixing hole 11; other detachable methods such as adhesive bonding are also suitable for connecting and fixing the base plate 10 to the CT detection equipment.

[0046] A clamping plate 20 is fixedly installed on the base plate 10. The clamping plate 20 includes a first clamping plate 21 and a second clamping plate 22 that are opposite each other. The first clamping plate 21 and the second clamping plate 22 are arranged perpendicular to the base plate 10.

[0047] A tray 30 is used to support the battery to be tested. It is disposed between the first clamping plate 21 and the second clamping plate 22. Both sides of the tray 30 abut against the first clamping plate 21 and the second clamping plate 22 respectively. Furthermore, the tray 30 is rotatably connected to at least one of the first clamping plate 21 and the second clamping plate 22, allowing the tray 30 to rotate around a horizontal axis. In this embodiment, the tray 30 is rotatably connected to both the first clamping plate 21 and the second clamping plate 22. In other embodiments, the tray 30 may be rotatably connected to the first clamping plate 21 on one side, and only surface-abutting the second clamping plate 22 on the other side; or, the tray 30 may only surface-abutting the first clamping plate 21 on one side, and rotatably connected to the second clamping plate 22 on the other side. Thus, the tray 30, carrying the battery to be tested, can swing to adjust the direction and angle of detection on one side of the battery, thereby enabling detection of one side of the battery from different directions and angles.

[0048] The tray 30 has a first part and a second part, which extend in different directions and form a test piece placement position with a preset angle between them. In this embodiment, both the first part and the second part are planes. The first part is a first plane 31, and the second part is a second plane 32. The first plane 31 and the second plane 32 extend in two directions and form a preset angle between them to form a battery placement position. In this embodiment, the tray 30 is formed into an L-shaped structure, with the first plane 31 and the second plane 32 perpendicular to each other, and the bottom of the tray 30 forming a right angle, so that the tray 30 carries the battery under the battery for testing. Preferably, the L-shaped tray 30 of this embodiment is suitable for mounting square-shell batteries. In other embodiments, other types of batteries such as cylindrical batteries or other test pieces can be mounted according to specific testing needs, or the tray 30 can also be configured with an arc-shaped or other structured bottom to be suitable for testing other types of batteries or other test pieces.

[0049] The pallet 30 is rotatably connected to the first clamping plate 21 via a first connecting member; the pallet 30 is rotatably connected to the second clamping plate 22 via a second connecting member. In this embodiment, both the first and second connecting members are configured as connecting pins 50. The two sides of the pallet 30 are rotatably connected to the first clamping plate 21 and the second clamping plate 22 respectively via connecting pins 50. One end of the connecting pin 50 is disposed in a hole on the side of the pallet 30, and the other end is disposed in a hole in either the first clamping plate 21 or the second clamping plate 22. In this embodiment, the connecting pin 50 is disposed at the bottom of the pallet 30, at the junction between the first plane 31 and the second plane 32.

[0050] One of the pallet 30 and the first clamping plate 21 is fixedly connected to one end of the first connecting member, and the other is rotatably connected to the other end of the first connecting member; one of the pallet 30 and the second clamping plate 22 is fixedly connected to one end of the second connecting member, and the other is rotatably connected to the other end of the second connecting member. For example, the first and second connecting members (i.e., connecting pins 50) on both sides of the tray 30 are fixedly connected to the tray 30 at one end, and rotatably connected to the first clamping plate 21 and the second clamping plate 22 at the other end; or, they can be configured such that the first and second connecting members (i.e., connecting pins 50) on both sides of the tray 30 are rotatably connected to the tray 30 at one end, and fixedly connected to the first clamping plate 21 and the second clamping plate 22 at the other end; or, they can be configured such that the tray 30 is fixedly connected to the connecting pin 50 of the first connecting member, the first clamping plate 21 is rotatably connected to the connecting pin 50 of the first connecting member, the tray 30 is rotatably connected to the connecting pin 50 of the second connecting member, and the second clamping plate 22 is fixedly connected to the connecting pin 50 of the second connecting member, and so on, and similar configurations that allow the tray 30 to be rotatably connected to the first clamping plate 21 and the second clamping plate 22, will not be described in detail here. During assembly, the tray 30 can be connected to one side of the clamping plate 20 first, and then the clamping plate 20 on the other side can be assembled to the other side of the tray 30. Thus, the pallet 30 is connected to the first clamping plate 21 and the second clamping plate 22, and the pallet 30 can rotate relative to the first clamping plate 21 and the second clamping plate 22.

[0051] An angle adjustment groove 23 is provided on at least one of the first clamping plate 21 and the second clamping plate 22, and a fixing position is provided on the support plate 30 to cooperate with the angle adjustment groove 23. When the support plate 30 is rotated to the required angle, it is fixed in the fixing position by a fastener passing through the angle adjustment groove 23 to fix the support plate 30. The fixing position is an angle adjustment hole 33, and angle adjustment holes 33 are provided on the sides of the support plate 30 near the first clamping plate 21 and the second clamping plate 22. An angle adjustment groove 23 corresponding to the angle adjustment hole 33 is provided on the first clamping plate 21, and an angle adjustment groove 23 corresponding to the angle adjustment hole 33 is provided on the second clamping plate 22; or, the fixing position is an angle adjustment hole 33, and an angle adjustment hole 33 is provided on one of the sides of the support plate 30 near the first clamping plate 21 and the second clamping plate 22, and an angle adjustment groove 23 is provided on the clamping plate 20 near the angle adjustment hole 33.

[0052] In this embodiment, both the first clamping plate 21 and the second clamping plate 22 are provided with angle adjustment grooves 23 for adjusting and positioning the angle of the support plate 30. The angle adjustment grooves 23 are located on the upper part of the first clamping plate 21 and the second clamping plate 22, corresponding to the first plane 31 of the support plate 30, and are formed as elongated slots extending horizontally. In this embodiment, the angle adjustment grooves 23 extend from the end of the clamping plate 20 opposite to the first plane 31 to the middle of the clamping plate 20. Therefore, by means of the angle adjustment grooves 23, when the support plate 30 is rotated to the desired angle, the support plate 30 can be fixed by means of the angle adjustment grooves 23 and fasteners, such as by using screws to tighten the support plate 30 through the angle adjustment grooves 23.

[0053] In this embodiment, the first plane 31 of the tray 30 is longer than the second plane 32. When carrying the battery, the first plane 31 is positioned higher relative to the second plane 32, corresponding to the angle adjustment groove 23. The first plane 31 of the tray 30 forms an angle adjustment hole 33 extending along the extension direction of the first plane 31. The angle adjustment hole 33 is formed as a waist hole and penetrates the first plane 31 laterally, thereby forming fixed positions on both sides of the first plane 31 of the tray 30.

[0054] Angle adjustment groove 23 and angle adjustment hole 33 are correspondingly provided. When the support plate 30 rotates to change the angle so that the first plane 31 is within the range of the angle adjustment groove 23, the projection portions of the angle adjustment groove 23 and the angle adjustment hole 33 on the vertical plane overlap. After the support plate 30 is swung to the required angle, it is tightened using a long screw and a horn nut as fixing parts. The long screw passes through the angle adjustment groove 23 of the first clamping plate 21, the angle adjustment hole 33 of the first plane 31, and the angle adjustment groove 23 of the second clamping plate 22 from one side of the detection fixture, and is tightened with a horn nut on the other side of the detection fixture in cooperation with the long screw, thereby fixing the support plate 30 at the required angle.

[0055] Therefore, the angle of the positioning support plate 30 can be adjusted by the angle adjustment groove 23 of the first clamping plate 21 and the second clamping plate 22 and the angle adjustment hole 33 of the support plate 30.

[0056] The fastening part 40 is used to clamp the battery placed on the tray 30. It is set to correspond to the battery placement position formed by the tray 30, and is inserted through at least one of the first clamping plate 21 and the second clamping plate 22. It is configured to extend toward the tray 30 side and abut against the surface of the battery placed on the tray 30 to clamp the battery and fasten the test piece placed on the tray 30.

[0057] In this embodiment, a fastening part 40 is provided on the first clamping plate 21, and the battery is clamped together with the second clamping plate 22 by the fastening part 40.

[0058] In other embodiments, the fastening part 40 may be provided on the second clamping plate 22, and the battery may be clamped by the fastening part 40 and the first clamping plate 21. Thus, the fastening part 40 is provided on one of the first clamping plate 21 and the second clamping plate 22, so that the fastening part 40 and the other of the first clamping plate 21 and the second clamping plate 22 clamp the battery. Alternatively, fastening parts 40 may be provided on both the first clamping plate 21 and the second clamping plate 22, and the battery may be clamped by the fastening parts 40 on both sides.

[0059] The fastening part 40 includes: a rod 41 that passes through the clamping plate 20; a top plate 42 disposed at one end of the rod 41 near the support plate 30; a top plate connecting part 43 disposed on the outer side of the top plate 42; a handle 44 disposed at the other end of the rod 41 opposite to the top plate 42; and a support part 45 disposed on the outer surface of the clamping plate 20 to support the rod 41 on the clamping plate 20.

[0060] In this embodiment, the first clamping plate 21 forms a fastening part mounting window corresponding to the fastening part 40. The mounting window is used to assemble the fastening part 40 onto the clamping plate 20. The mounting window is formed to penetrate the first clamping plate 21 in a direction perpendicular to the extending plane of the first clamping plate 21. The rod 41 passes through the mounting window. A top plate 42 is provided at one end of the rod 41 near the side (inner side) of the support plate 30, and a handle 44 is provided at the other end of the rod 41 away from the side (outer side) of the support plate 30. In this embodiment, the fastening part 40 is configured to be manually rotatable. The rod 41 is connected to the main body in the form of a screw, and the top plate connecting part 43 is configured to cooperate with the screw. Thus, rotating the screw can move the top plate 42 in a straight line inward or outward, and when the screw is stopped, the top plate 42 stops at the corresponding position.

[0061] The plane of the top plate 42 is parallel to the first clamping plate 21 and the second clamping plate 22, and can move inward to abut against the battery surface, thereby clamping the battery. The top plate 42 is square-round, with a large contact area with the battery, resulting in good clamping stability. A top plate connecting part 43 is fixedly provided on the outer side of the top plate 42. The top plate connecting part 43 is formed into a rectangular column, through which the rod 41 passes and is connected to the rod 41. The rod 41 extends a certain length in the axial direction. Through the top plate connecting part 43, the top plate 42 can move inward to a certain distance beyond the inner end of the rod 41, contacting the battery surface to perform a clamping action.

[0062] At the mounting window of the fastening part of the first clamping plate 21, a step portion 24 extends from the inner periphery of the mounting window to the center of the mounting window, through which the fastening part 40 is assembled at the mounting window. From the inner surface of the clamping plate 20 to the inner periphery of the step portion 24, the window size of the mounting window decreases, and the window size of the inner periphery of the step portion 24 is smaller than the size of the top plate 42, so that the top plate 42 can only move to the side away from the support plate 30 (outer side) until it abuts against the step portion 24, thus restricting the top plate 42 to the inner side of the clamping plate 20 and preventing it from detaching from the clamping plate 20. The window size at the outer periphery of the step portion 24 is not smaller than the circumferential size of the top plate 42, so that when the top plate 42 moves to the side away from the support plate 30, it can be embedded in the clamping plate 20 and abut against the inner side of the step portion 24. Moreover, the distance from the inner surface of the first clamping plate 21 to the step portion 24 is not less than the thickness of the top plate 42, so that the top plate 42 can be hidden inside the clamping plate 20 to avoid affecting the installation of the battery cell.

[0063] The top plate connection 43 is circumferentially aligned with the window size of the step 24.

[0064] The handle 44 is used to facilitate the operation of the lever 41.

[0065] The support portion 45 of the support member 41 has two first fixing plates disposed on both sides of the member 41 and fixedly connected to the outer surface of the first clamping plate 21; and a second fixing plate connected between the two first fixing plates. The member 41 passes through the second fixing plate and is movably disposed between the member 41 and the second fixing plate, thereby enabling the support portion 45 to support the member 41.

[0066] Using the CT inspection fixture described above, during operation, the entire fixture is placed on and fixed to the CT inspection equipment. First, the angle of the support plate 30 is adjusted to the desired position. The battery is then placed on the support plate 30, positioning it at the required inspection angle. The fastening part 40 is then adjusted to clamp the battery. When the battery inspection angle needs adjustment, the fastening part 40 is moved away from the battery to loosen it. The angle of the support plate 30 is then adjusted to the desired position, and the fastening part 40 is adjusted again to clamp the battery. Furthermore, by flipping the battery to change its orientation and following the above steps, comprehensive multi-directional and multi-angle inspection of all sides and corners of the battery can be achieved.

[0067] A second aspect of this disclosure provides a CT inspection device having a CT inspection fixture as described above.

[0068] According to the embodiments of this disclosure, the following technical effects are achieved:

[0069] This disclosure discloses a CT inspection fixture and inspection device. A support plate 30, disposed on a first clamping plate 21 and a second clamping plate 22, carries the battery to be inspected. The support plate 30 is rotatably connected to the first clamping plate 21 and the second clamping plate 22, allowing the support plate 30 to rotate and thus adjust the inspection angle of the battery placed on the support plate 30. Furthermore, by using angle adjustment holes 33 formed in the support plate 30 and angle adjustment grooves 23 formed in the first clamping plate 21 and the second clamping plate 22, and by using fasteners, the support plate 30 is fixedly positioned at the desired inspection angle, thereby achieving battery angle adjustment. This facilitates the inspection of one corner of the battery from different directions and angles.

[0070] Furthermore, the inspection fixture disclosed herein is easy to use and has low operational difficulty, making it more convenient and easier to inspect the edges and corners of the battery during CT inspection, and making it easier to conduct comprehensive inspection of the battery. In addition, it has a simple structure and low cost.

[0071] In the description of this specification, the terms "connection," "installation," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0072] In this specification, the terms "one embodiment," "some embodiments," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0073] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A CT examination fixture, characterized in that, include: Base plate (10); The clamping plate (20) is disposed on the base plate (10) and includes a first clamping plate (21) and a second clamping plate (22) disposed opposite each other; A tray (30) is disposed between the first clamping plate (21) and the second clamping plate (22) and is rotatably connected to at least one of the first clamping plate (21) and the second clamping plate (22); and The fastening part (40), which passes through at least one of the first clamping plate (21) and the second clamping plate (22), is configured to extend toward the tray (30) to fasten the test piece placed on the tray (30).

2. The CT detection fixture according to claim 1, characterized in that, The pallet (30) is rotatable about the horizontal axis.

3. The CT detection fixture according to claim 1, characterized in that, The pallet (30) and the first clamp (21) are rotatably connected by a first connector; The pallet (30) and the second clamp (22) are rotatably connected by a second connector.

4. The CT detection fixture according to claim 3, characterized in that, One of the tray (30) and the first clamp (21) is fixedly connected to one end of the first connector, and the other is rotatably connected to the other end of the first connector; One of the pallet (30) and the second clamp (22) is fixedly connected to one end of the second connector, and the other is rotatably connected to the other end of the second connector.

5. The CT detection fixture according to claim 1, characterized in that, The tray (30) has a first part and a second part, which extend in different directions and form a test piece placement position with a preset angle between them.

6. The CT detection fixture according to claim 1, characterized in that, An angle adjustment groove (23) is provided on at least one of the first clamping plate (21) and the second clamping plate (22), and a fixing position is provided on the support plate (30) to cooperate with the angle adjustment groove (23); When the tray (30) is rotated to the desired angle, it is fixed in the fixed position by a fastener passing through the angle adjustment groove (23) to fix the tray (30).

7. The CT detection fixture according to claim 6, characterized in that, The fixed position is an angle adjustment hole (33), and the angle adjustment hole (33) is provided on the side of the support plate (30) near the first clamping plate (21) and the second clamping plate (22). The first clamping plate (21) is provided with an angle adjustment groove (23) corresponding to the angle adjustment hole (33), and the second clamping plate (22) is provided with an angle adjustment groove (23) corresponding to the angle adjustment hole (33); or, The fixed position is an angle adjustment hole (33), and the angle adjustment hole (33) is provided on one of the sides of the support plate (30) near the first clamping plate (21) and the second clamping plate (22), and the angle adjustment groove (23) is provided on the clamping plate (20) near the angle adjustment hole (33).

8. The CT detection fixture according to claim 1, characterized in that, The fastening part (40) includes: A rod (41) passing through the clamp (20); A top plate (42) is provided at one end of the rod (41) near the support plate (30); and A support portion (45) is provided on the outer surface of the clamping plate (20) to support the rod on the clamping plate.

9. The CT detection fixture according to claim 8, characterized in that, The clamping plate forms an installation window corresponding to the fastening part, and a stepped part (24) is formed on the inner peripheral surface of the installation window. From the inner surface of the clamp (20) to the inner periphery of the step (24), the window size of the mounting window decreases, and the window size of the inner periphery of the step (24) is smaller than the size of the top plate (42), so that the top plate (42) can be moved away from the support plate (30) until it abuts against the step (24), so that the top plate (42) is restricted inside the clamp (20).

10. A CT detection device, characterized in that, It includes the CT detection fixture as described in any one of claims 1 to 9.

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