CN218137581U

CN218137581U - Plate-shaped fossil clamp for industrial CT

Info

Publication number: CN218137581U
Application number: CN202222581303.XU
Authority: CN
Inventors: 王洋; 陈寿铭
Original assignee: INSTITUTE OF GEOLOGY CHINESE ACADEMY OF GEOLOGICAL SCIENCES
Current assignee: INSTITUTE OF GEOLOGY CHINESE ACADEMY OF GEOLOGICAL SCIENCES
Priority date: 2022-09-28
Filing date: 2022-09-28
Publication date: 2022-12-27
Anticipated expiration: 2032-09-28

Abstract

The utility model relates to a plate-like fossil anchor clamps are used to industry CT belongs to the anchor clamps field. A plate-shaped fossil clamp for industrial CT comprises a T-shaped bracket, a mounting column inserted into an industrial CT objective table is arranged at the lower part of the T-shaped bracket, and a clamping base fixedly connected with the mounting column is arranged at the upper part of the T-shaped bracket; the side base plate is a plate structure vertical to the clamping base and is fixedly arranged on the side edge part of the T-shaped bracket through a bottom mounting hole; the clamping plate is in a strip structure, and two ends of the clamping plate are provided with one through hole; the clamping plate is fixedly arranged on the side base plate by virtue of the first through hole; so as to clamp the plate-like fossil between the side base plate and the splint. The T-shaped bracket isolates the industrial CT object stages of the platy fossil and the metal to a certain distance, avoids the interference of the gray scale of the platy fossil by the gray scale of the object stage made of the metal, improves the imaging definition and reduces the three-dimensional reconstruction difficulty.

Description

Plate-shaped fossil clamp for industrial CT

Technical Field

The utility model relates to a anchor clamps field, specifically speaking relates to a plate-like fossil anchor clamps are used to industry CT.

Background

The working principle of the industrial CT is as follows: when the X-ray is incident on the object, a part of the X-ray is absorbed, a part of the X-ray is scattered, and a part of the X-ray is transmitted through the object. If the detected object is uniform and has no difference in structure, the transmitted X-ray intensity is uniform; if the detected object is not uniform or has structural difference, it will change the uniformity of X-ray projection. The structural difference, size and property of the detected object can be displayed by detecting the intensity of the transmitted X-ray by using a detector. In general, the higher the density of the object to be detected, the higher the detected tone value, and the lower the density, the lower the detected tone value.

An X-ray tube of a Nikon XTH225ST industrial CT is a fixing device, and an object to be detected needs to be fixed on a clamp to rotate 360 degrees when an instrument carries out three-dimensional scanning, so that a series of X-ray images are obtained, and the three-dimensional structure of the object to be detected is restored. Due to the large size and weight of the plate-shaped fossil, how to stably fix the fossil on the clamp on the premise of not damaging the fossil becomes a key for obtaining high-quality measurement data. In the prior art, a metal clamp carried by Nikon XTH225ST is generally used for fixing and then scanning a plate-shaped fossil on a machine, and the prior clamp has the following defects:

1. the clamp is made of steel materials and has high density; the tabular fossil is usually tuff or limestone, and has low overall density. On the display of an X-ray image, the X-ray image and the stone have larger gray value difference, the gray value displayed by the metal clamp is far higher than that of the fossil, the image display of the platy fossil is interfered, and the structure of the joint of the clamp and the fossil cannot be effectively distinguished; meanwhile, the clamp and the fossil are greatly different in gray value, so that trouble is brought to three-dimensional reconstruction of the fossil.

2. In order to stably clamp and fix the plate-shaped fossil and prevent the plate-shaped fossil from shaking in the scanning process, the conventional clamp needs to clamp the plate-shaped fossil with great force, but the plate-shaped fossil is not a straight plate, has certain warping and is subjected to certain moment when being clamped, so that the conventional clamp has the risk of damaging the fossil in the process of fixing the plate-shaped fossil.

SUMMERY OF THE UTILITY MODEL

1. Problems to be solved

Aiming at the problems that the gray scale of the clamp interferes with the gray scale of the platy fossil in the clamping process of the prior clamp for the platy fossil, the clamp made of carbon fiber is adopted by the utility model, the platy fossil is directly fixed in the middle of the carbon fiber plate, and the damage of the fossil is avoided; the carbon fiber plate is fixed by utilizing bolt assemblies such as bolts and nuts with low gray scale values, and the gray scale values of the fossil and the clamp can be easily distinguished in 3D nondestructive scanning due to low carbon fiber density.

2. Technical scheme

In order to solve the above problem, the utility model adopts the following technical scheme:

a plate-shaped fossil clamp for industrial CT comprises a T-shaped bracket, a mounting column inserted into an industrial CT object stage is arranged at the lower part of the T-shaped bracket, and a clamping base fixedly connected with the mounting column is arranged at the upper part of the T-shaped bracket. The side base plate is a plate structure vertical to the clamping base and is fixedly arranged on the side edge part of the T-shaped bracket through a bottom mounting hole; the clamping plate is in a strip structure, and two ends of the clamping plate are provided with one through hole; the clamping plate is fixedly arranged on the side base plate by means of the first through hole; so as to clamp the plate-shaped fossil between the side base plate and the clamping plate.

Preferably, a positioning groove which is formed along a bus and penetrates through the mounting column is formed in the side face of the mounting column of the T-shaped bracket, friction force between the mounting column and the industrial CT objective table is increased by the positioning groove, and the problem that the mounting column rotates uncontrollably to influence the continuity of industrial CT scanning is effectively avoided.

Preferably, the clamping base is in a polygonal column shape, and a threaded hole is formed in one side surface of the clamping base. The bolt penetrates through the mounting hole of the side substrate and is screwed into the threaded hole of the clamping base; the bolts and the corresponding threaded holes are multiple in set and arranged to fixedly clamp the side substrate on the clamping base together.

Preferably, the left side and the right side of the horizontal direction of the side base plate are both provided with a plurality of second through holes, and when the side base plate is used, the first through holes are matched with the second through holes at different positions, so that the clamping plate can clamp and fix the platy fossil on the side base plate in different postures and at different positions. The fixing effect of the platy fossil with the special-shaped structure is more obvious.

Preferably, one or more parts of the T-shaped bracket, the side base plate and the clamping plate are made of carbon fiber. A bolt group for running through fixed through-hole and No. two through-holes also is carbon fiber material. The carbon fiber structure is high in strength and low in gray level, the interference on the gray level image of the platy fossil is hardly generated, and the splint with the lath-shaped structure can flexibly compress the platy fossil by utilizing the high toughness of the carbon fiber, so that the clamping area is increased, and the pressure loss is reduced.

3. Advantageous effects

Compared with the prior art, the beneficial effects of the utility model are that:

(1) The utility model adopts the T-shaped bracket to isolate the industrial CT object stage of the plate-shaped fossil and the metal for a certain distance, thereby avoiding the interference of the gray level of the plate-shaped fossil by the gray level of the object stage made of the metal material, improving the imaging definition and reducing the difficulty of three-dimensional reconstruction; the bearing area of the clamping base is larger, and the supporting stability of the plate-shaped fossil is improved.

(2) The utility model discloses a splint design can utilize its self elasticity effectively to avoid fossil to be destroyed at fixed in-process on the one hand, inferior aspect still is favorable to exposing bigger observation face and adjusts the operating surface on the one hand, makes things convenient for personnel to observe the situation of slabby fossil at centre gripping and scanning in-process, and on the other hand, lath splint are nimble with side base plate cooperation state, and the slabby fossil that can be applicable to various patterns is comprehensive, the centre gripping of multi-angle, multi-attitude, plays the fixed effect of pertinence.

(3) The utility model discloses utilize carbon fiber material to make the anchor clamps that platelike fossil used, in X ray image, the carbon fiber can obtain the grey value of approximate air, can effectually highlight the grey value of fossil, does benefit to the three-dimensional reconstruction and the volume cutting of fossil.

Drawings

Fig. 1 is a first perspective view of the present invention;

fig. 2 is a perspective view of a second viewing angle of the present invention.

In the figure:

1. a T-shaped bracket; 11. mounting a column; 11a, a positioning groove; 12. a clamping base; 12a, a threaded hole;

2. a side substrate; 21. mounting holes; 22. a second through hole;

3. a splint; 31. a first through hole.

Detailed Description

In order to make the utility model realize that the technical means, the creation characteristics, the achievement purpose and the efficacy are easy to be understood, the utility model is further explained by combining the embodiment.

Example 1

Referring to fig. 1-2, a plate-like fossil jig for industrial CT includes a T-shaped bracket 1. The T-shaped bracket 1 is mainly composed of two parts, namely a lower mounting column 11 and an upper clamping base 12. When in use, the mounting post 11 is inserted on an industrial CT object stage to fixedly support the clamping base 12. The mounting column 11 and the clamping base 12 are made of carbon fiber materials in an integrated molding mode. The peripheral side surface of the mounting column 11 is provided with a positioning groove 11a. The constant head tank 11a link up along the 11 side generating lines of erection column, can coordinate the location with the sand grip in the mounting groove of objective table, avoid the great slabby fossil of weight to press on clamping base 12, because the moment that probably exists leads to erection column 11 skew to rotate, influence centre gripping stability and scanning continuity. The holding base 12 is a rectangular block, which is horizontally disposed, and has a screw hole 12a formed on one side surface thereof for fixedly mounting the side substrate 2.

The side substrate 2, which is also made of carbon fiber, is a plate structure perpendicular to the clamping base 12. The bottom of the side substrate 2 is provided with mounting holes 21 arranged in an array. The side base plate 2 is fixed to the clamp base 12 by passing a bolt through the mounting hole 21 and screwing into a threaded hole in the side edge of the T-shaped bracket 1. In this embodiment, the lower thickness of the side substrate 2 is higher than the upper thickness, so as to improve the structural strength of the bottom of the side substrate 2 and prevent the side substrate 2 from bending or even breaking when supporting the heavy platy fossil.

The left and right sides of the side substrate 2 are provided with a plurality of second through holes 22 arranged from top to bottom. Cooperating with the side base plate 2 are several clamping plates 3. In this embodiment, there are two clamping plates 3 respectively located at the upper and lower sides of the side base plate 2 to clamp and fasten the plate-shaped fossil comprehensively. Splint 3 adopts carbon fiber material equally, and its both ends all have one number through-hole 31.

When the clamp is used, the side base plate 2 is laid flat, the platy fossil is placed stably, the plywood 3 is used for pressing the platy fossil on the side base plate, the second through hole 22 of the plywood 3 is correspondingly matched with the first through hole 31 of the side base plate 2 through the bolt and nut matching assembly made of carbon fiber, the clamping process is kept, the side base plate 2 and the T-shaped bracket 1 are erected, and the whole body is inserted into an object stage of an industrial CT.

Splint 3 both can transversely centre gripping slabby fossil, and splint 3 complex this moment is the No. two through-holes 22 that are located same horizontal plane, also can incline the centre gripping according to the structural feature of slabby fossil, and splint 3 complex this moment is No. two through-holes 22 of the not co-altitude in the left and right sides of side base plate 2, and the splint 3 of slope, and its length is longer, and the clamping area is bigger.

Example 2

Different from embodiment 1, because the bolt and the nut subassembly cost of carbon fiber material preparation is higher, take other connected mode in this embodiment, for example set up the tip of splint 3 into the rectangular hole structure to set up the crotch of outside lateral bending on the side base plate, utilize the lock realization of hole structure and crotch to the centre gripping of slabby fossil. At the same time, the elastic properties of the clamping plate 3 enable it to float to a certain extent in the length direction and to maintain a certain tension.

The clamping base 12 is not required to be contacted with and bear the plate-shaped fossil, and the fossil with smaller mass can be lifted to a certain height in the middle of the side base plate 2 for direct clamping, so that the imaging interference with an objective table is avoided.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, but rather that the principles of the invention are described in the above embodiments and the description, and that various changes and modifications may be made without departing from the spirit and scope of the invention, and these changes and modifications are intended to be included within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A plate-like fossil jig for industrial CT, comprising:

the lower part of the T-shaped bracket (1) is provided with a mounting column (11) for inserting an industrial CT objective table, and the upper part of the T-shaped bracket is provided with a clamping base (12) fixedly connected with the mounting column (11);

a side substrate (2) which is a plate structure vertical to the clamping base (12) and is fixedly installed on the side edge part of the T-shaped bracket (1) through a mounting hole (21) at the bottom;

the clamping plate (3) is of a strip-shaped structure, and two ends of the clamping plate are provided with one through hole (31); the clamping plate (3) is fixedly arranged on the side base plate (2) by means of the first through hole (31); so as to clamp the plate-shaped fossil between the side base plate (2) and the clamping plate (3).

2. The plate-like fossil jig for industrial CT according to claim 1, wherein:

and a positioning groove (11 a) which is arranged along a bus and penetrates through the mounting column (11) is formed in the side surface of the mounting column (11) of the T-shaped bracket (1).

3. The plate-like fossil jig for industrial CT according to claim 1, wherein:

the clamping base (12) is in a polygonal column shape, and a threaded hole (12 a) is formed in one side face of the clamping base.

4. The plate-like fossil jig for industrial CT as claimed in claim 3, wherein:

the bolt penetrates through a mounting hole (21) of the side substrate (2) and is screwed into a threaded hole (12 a) of the clamping base (12); the bolts and the corresponding threaded holes (12 a) are multiple sets and are used for fixedly clamping the side substrate (2) on the clamping base (12) together.

5. The plate-like fossil jig for industrial CT as claimed in claim 1, wherein:

the side base plate (2) horizontal direction left and right sides all is equipped with a plurality of No. two through-holes (22), no. one through-hole (31) and No. two through-holes (22) of difference cooperate, realize splint (3) with different postures and different positions with slabby fossil centre gripping fix on side base plate (2).

6. The plate-like fossil jig for industrial CT according to any one of claims 1 to 5, characterized in that:

one or more parts of the T-shaped bracket (1), the side base plate (2) and the clamping plate (3) are made of carbon fiber materials.

7. The plate-like fossil jig for industrial CT as claimed in claim 5, wherein:

the bolt group for penetrating and fixing the first through hole (31) and the second through hole (22) is made of carbon fiber.