CN213302051U - Multi-degree-of-freedom CT detection equipment - Google Patents
Multi-degree-of-freedom CT detection equipment Download PDFInfo
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- CN213302051U CN213302051U CN202021397466.7U CN202021397466U CN213302051U CN 213302051 U CN213302051 U CN 213302051U CN 202021397466 U CN202021397466 U CN 202021397466U CN 213302051 U CN213302051 U CN 213302051U
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Abstract
The utility model discloses a multi freedom CT check out test set, include: the device comprises a platform, a ray source module, a product motion module and a receiver module, wherein the ray source module and the receiver module are respectively distributed at the left end and the right end of the platform and are arranged oppositely, and the product motion module is positioned in the middle area of the ray source module and the receiver module; the ray source module consists of a two-degree-of-freedom motion platform and a ray source; the product motion module consists of a four-degree-of-freedom motion platform and an objective table; the receiver module consists of a flat receiver and a three-degree-of-freedom motion platform; the utility model discloses a rotatory product many times and removal product to cooperation radiation source module, receiver module remove, form many times, the formation of image that shines of multi-angle, combine the 3D model and the size that the algorithm obtained the product, and can see the inner structure of product, detect the flaw that inside probably exists under the condition of not destroying the product, reduced the detection cost, promoted efficiency.
Description
Technical Field
The utility model relates to a CT technical field especially relates to a multi freedom CT check out test set.
Background
The internal dimension or internal flaw detection of many products on the market needs to be detected by injection molding or cross cutting, which damages the product structure, so that each product cannot be detected, but a qualified company ensures that each product which is delivered from a warehouse should be subjected to corresponding detection. For this reason, a ray (CT) detection method has appeared, and the experimental principle of ray detection is to emit X-rays through an X-ray emission source, transmit the X-rays through a product, then irradiate the X-rays on a flat panel receiver, and then image the contents received by the flat panel receiver.
The utility model of the chinese patent CN207055501U discloses a CT imager, which comprises a developing device and a supporting table, wherein a developing hole is arranged at the central position of the developing device, a sliding supporting plate is arranged at the position of the supporting table opposite to the developing hole, and the sliding supporting plate is driven by a motor to reciprocate towards the developing hole of the developing device; the sliding support plate and the support platform are connected in a matching way through a sliding rail matching device; the left side and the right side of the slide rail pairing device are at least respectively provided with a clamping jaw device; each clamping jaw device is fixed on the support platform through a fixing seat and drives the clamping jaw device to clamp a human body through a servo motor respectively. The technical scheme has a complicated structure and a large volume, particularly, a supporting table fixed by a fixed seat is required, the occupied area is large, the use is not convenient, and the multi-degree-of-freedom adjusting capability of an object/person to be measured is lacked.
Chinese patent CN 209951284U's utility model discloses a CT inspection device, which comprises a support, the CT machine is installed to the inboard of support, one side of CT machine is provided with the bin mouth, the bottom that the support is close to bin mouth one side is provided with the bottom plate, the intermediate position department at bottom plate top is fixed with a supporting bench, a supporting bench's top is provided with the driving plate, the top sliding connection of driving plate has first bed board, one side swing joint that first bed board is close to the bin mouth has the articulated shaft. The technical scheme also has the advantages that the bottom plate needs to be supported by the fixed supporting table, the floor area is large, the movement is inconvenient, and the multi-degree-of-freedom adjusting capability of an object/person to be measured is also lacked.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a multi freedom CT check out test set can solve above-mentioned problem.
Multi freedom CT check out test set includes: the device comprises a platform, a ray source module, a product motion module and a receiver module;
the ray source module and the receiver module are respectively distributed at the left end and the right end of the platform and are arranged oppositely, and the product motion module is positioned in the middle area of the ray source module and the receiver module;
the radiation source module consists of a two-degree-of-freedom motion platform, a radiation source case and a radiation tube; the emission tube is horizontally arranged on one side surface of the emission source case; the emission source case is arranged on the two-degree-of-freedom motion platform through a bracket;
the product motion module consists of a four-degree-of-freedom motion platform and an object stage, and the object stage is arranged on the four-degree-of-freedom motion platform;
the receiver module is composed of a flat receiver and a three-degree-of-freedom motion platform, and the flat receiver is installed on the three-degree-of-freedom motion platform.
Furthermore, the emission source case is of a cuboid structure, and a heat dissipation device is installed on the side face of the emission source case.
Further, the two-degree-of-freedom motion platform main body structure consists of a first movable platform and a second movable platform;
two parallel guide rails are transversely arranged on the upper surface of the second movable platform along the platform, and the first movable platform (103) is in sliding connection with the guide rails through a sliding block; a linear motion mechanism is arranged between the first movable platform and the second movable platform (104), the linear motion mechanism is arranged in parallel with the guide rail, the movable end of the linear motion mechanism is fixedly connected with the first movable platform, and the fixed end of the linear motion mechanism is fixedly connected with the second movable platform;
two parallel guide rails are longitudinally arranged below the second movable platform along the platform, and the second movable platform is in sliding connection with the guide rails through a sliding block; the second movable platform and the platform are longitudinally provided with a linear motion mechanism, the movable end of the linear motion mechanism is fixedly connected with the second movable platform, and the fixed end of the linear motion mechanism is fixedly connected with the platform.
Further, the main body structure of the four-degree-of-freedom motion platform consists of a lower plate, a middle plate and an upper plate;
a rotating mechanism is arranged between the lower plate and the platform, the rotating end of the rotating mechanism is fixedly connected with the lower surface of the lower plate, and the fixed end of the rotating mechanism is fixedly connected with the upper surface of the platform;
two parallel guide rails are transversely arranged on the upper surface of the lower plate along the platform, and the middle plate is in sliding connection with the guide rails through a sliding block; a linear motion mechanism is arranged between the lower plate and the middle plate, the linear motion mechanism is arranged in parallel with the guide rail, the movable end of the linear motion mechanism is fixedly connected with the middle plate, and the fixed end of the linear motion mechanism is fixedly connected with the lower plate;
two parallel guide rails are longitudinally arranged on the upper surface of the middle plate along the platform, and the upper plate is in sliding connection with the guide rails through sliding blocks; a linear motion mechanism is arranged between the middle plate and the upper plate, the linear motion mechanism is arranged in parallel with the guide rail, the movable end of the linear motion mechanism is fixedly connected with the upper plate, and the fixed end of the linear motion mechanism is fixedly connected with the middle plate;
the upper plate is vertically provided with a linear motion mechanism, and the movable end of the linear motion mechanism is connected with the objective table horizontally through a support in a switching mode.
Further, the rotating mechanism is a DD motor.
Furthermore, the main structure of the three-degree-of-freedom motion platform consists of an L-shaped support, a middle plate and a bottom plate;
the flat plate receiver is arranged on the vertical surface of the L-shaped support, and a lifting mechanism is arranged between the horizontal surface of the L-shaped support and the middle plate;
the upper surface of the bottom plate is transversely provided with two parallel guide rails along the platform, and the middle plate is in sliding connection with the guide rails through a sliding block; a linear motion mechanism is arranged between the bottom plate and the middle plate, the linear motion mechanism is arranged in parallel with the guide rail, the movable end of the linear motion mechanism is fixedly connected with the middle plate, and the fixed end of the linear motion mechanism is fixedly connected with the bottom plate;
two parallel guide rails are longitudinally arranged below the bottom plate along the platform, and the bottom plate is in sliding connection with the guide rails through sliding blocks; the platform is characterized in that a linear motion mechanism is longitudinally arranged between the bottom plate and the platform, the movable end of the linear motion mechanism is fixedly connected with the bottom plate, and the fixed end of the linear motion mechanism is fixedly connected with the platform.
Furthermore, a group of travel switches are arranged in parallel in the moving direction of at least one linear moving mechanism.
Furthermore, the travel switches are groove-shaped photoelectric sensors, three travel switches are arranged in each group and are sequentially arranged along the movement direction of the linear movement mechanism, the travel switches at two ends are limit switches and send stop signals, and the travel switch in the middle is set as a zero point; and the movable end of the linear motion mechanism is fixedly connected with a light screen of the travel switch.
Furthermore, at least one of the linear motion mechanisms is provided with a stroke measuring mechanism in parallel in the motion direction.
Furthermore, the stroke measuring mechanism is a grating ruler; and the movable end of the linear motion mechanism is fixedly connected with a grating reading head of the stroke measuring mechanism.
The utility model has the advantages that: through many times of rotating products and moving products, the transmission source and the receiver are matched to move, multiple times of irradiation imaging is formed, finally, the 3D model and the size data of the products are obtained through an algorithm, the internal structure of the products can be seen, flaws possibly existing inside the products are detected under the condition that the products are not damaged, the detection cost is reduced, and the efficiency is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention, the drawings needed for the embodiments will be briefly described below, and it is obvious for those skilled in the art to obtain other drawings without inventive effort. The distribution positions and distribution numbers of the same structures shown in the drawings are only for convenience of describing the invention, but do not indicate or imply that the structures referred to must have a specific orientation, distribution number and therefore should not be construed as limiting the invention.
Fig. 1 is a front view of the present invention;
fig. 2 is a left side isometric view of the present invention;
figure 3 is a left side isometric view of the radiation source module;
figure 4 is a right side isometric view of the radiation source module;
FIG. 5 is a left side isometric view of a product movement module;
FIG. 6 is a right side isometric view of a product movement module;
FIG. 7 is a left side isometric view of a receiver module;
fig. 8 is a right side isometric view of a receiver module.
In the figure:
1-a radiation source module; 2-a product motion module; 3-a receiver module; 4-a travel switch; 5-a stroke measuring mechanism; 101-a transmitting tube block; 102-emission source enclosure; 103-a first movable platform; 104-a second movable platform; 201-lower plate; 202-middle plate; 203-upper plate; 204-an object stage; 205-one-dimensional electric displacement table; 301-a plate receiver; a 302-L shaped stent; 303-middle plate; 304-bottom plate.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and are not limiting of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.
It should be noted that, in the description of the present invention, the term "longitudinal" refers to the left-right direction in fig. 1, and the term "lateral" refers to the side pointing from the reader side to the side reading the text based on fig. 1.
As shown in fig. 1 and 2, the multi-degree-of-freedom CT detection apparatus mainly includes: the device comprises a platform, a ray source module 1, a product motion module 2 and a receiver module 3;
the ray source module 1 and the receiver module 3 are respectively distributed at the left end and the right end of the platform and are arranged oppositely, and the product motion module 2 is positioned in the middle area of the ray source module 1 and the receiver module 1;
with reference to fig. 3 and 4, the radiation source module 1 is composed of a two-degree-of-freedom motion platform, a radiation source case 102 and a radiation tube 101; the emission tube 101 is horizontally arranged on one side surface of the emission source case 102; the emission source case 102 is arranged on a two-degree-of-freedom motion platform through a bracket; preferably, the emission source casing 102 is a rectangular parallelepiped structure, and a heat sink is mounted on the side surface. The bracket is in a Z-shaped structure, so that the emission source extends inwards.
The two-degree-of-freedom motion platform consists of a first movable platform 103 and a second movable platform 104; two parallel guide rails are transversely arranged on the upper surface of the second movable platform 104 along the platform, and the first movable platform 103 is in sliding connection with the guide rails through a sliding block; a linear motion mechanism is arranged between the first movable platform 103 and the second movable platform 104, preferably, the linear motion mechanism is a hand-operated lead screw, a lead screw seat is arranged on the upper surface of the second movable platform 104 through a bolt or a rivet, a lead screw nut is fixedly connected with the first movable platform 103, and the hand-operated lead screw is arranged in parallel with the guide rail; the design not only can adjust the transverse position of the emission source, but also can select a hand-operated structure because the transverse position adjusting times are less in practical use. Two parallel guide rails are longitudinally arranged below the second movable platform 104 along the platform, the second movable platform 104 is in sliding connection with the guide rails through a sliding block, the first movable platform 103 can longitudinally slide, an electric lead screw is selected by a linear motion mechanism between the second movable platform 104 and the platform, namely, the lead screw is longitudinally arranged, one end of the lead screw is connected with a servo motor, a lead screw seat and the servo motor are fixedly arranged on the platform, a lead screw nut is fixedly connected with the second movable platform 104, the radiation source module 1 can longitudinally move, and the distance from the radiation source 1 to an object to be detected is adjusted. Preferably, in order to make the electric structure move more accurately, as shown in fig. 3 and 4, a travel switch 4 and a travel measuring mechanism 5 are respectively installed on two sides of the second movable platform 104, wherein the travel switch 4 is a groove-shaped photoelectric sensor, three of the sensors are sequentially distributed along the longitudinal direction, the light shielding plates are installed on the second movable platform 104, and the photoelectric sensors at two ends are responsible for measuring the limit position of the longitudinal movement of the second movable platform 104, so that once the second movable platform 104 moves to two ends, a stop instruction can be timely sent out to prevent the lower sliding block from separating from the sliding rail or prevent the upper emission source from colliding with the product movement module 2; the photoelectric sensor arranged in the middle is set as a zero position and is responsible for calibration work in daily use, the electric control system sends an instruction to enable the servo motor to drive the second movable platform 104 to move to a design position, the photoelectric sensor arranged in the middle is triggered to indicate that the zero position is reached at the moment, and position checking is completed. The grating ruler is selected as the measuring mechanism 5, the grating reading head is installed on the second movable platform 104, longitudinal displacement can be read in real time, so that the servo motor can be controlled well, check measurement is carried out by matching with the travel switch 4, and overall motion precision can be improved.
Referring to fig. 5 and 6, the product motion module 2 is composed of a four-degree-of-freedom motion platform and an object stage 204, and the object stage 204 is mounted on the four-degree-of-freedom motion platform. Preferably, the four-degree-of-freedom motion platform consists of a lower plate 201, a middle plate 202 and an upper plate 203; the lower plate 201 is a disc-shaped structure, and irregular hollow structures designed for reducing weight are arranged on the periphery of the lower plate. A rotating mechanism is arranged between the lower plate 201 and the platform, the rotating mechanism selects a DD (direct drive) motor, the DD motor is vertically arranged on the platform, a rotating end of the DD motor is fixedly connected with the lower surface of the lower plate 201, and a fixed end of the DD motor is fixedly connected with the upper surface of the platform to form the degree of freedom around the U axis. Based on the initial installation position or the zero position of the DD motor, in this case, two parallel guide rails are transversely arranged on the upper surface of the lower plate 201 along the platform, and the middle plate 202 is in sliding connection with the guide rails through a sliding block; a linear motion mechanism is installed between the lower plate 201 and the middle plate 202, the linear motion mechanism is an electric lead screw, the electric lead screw is arranged in parallel with the guide rail, in order to reduce the transverse size, the servo motor and the lead screw are installed in parallel, and are connected and driven through a belt wheel and a belt, and the linear motion mechanism is specifically shown in fig. 5. Two parallel guide rails are longitudinally arranged on the upper surface of the middle plate 202 along the platform, and the upper plate 203 is in sliding connection with the guide rails through a sliding block; a linear motion mechanism is arranged between the middle plate 202 and the upper plate 203, and the composition and the installation mode of the linear motion mechanism are the same as those of an electric screw rod in the radiation source module 1. The upper plate 203 is vertically provided with a linear motion mechanism, a one-dimensional electric displacement table 205 can be selected, an object stage 204 is directly arranged on the movable end of the one-dimensional electric displacement table 205, or a linear motor is selected, the output end of the one-dimensional electric displacement table is connected with the horizontally arranged object stage 204 through a support, preferably, as shown in fig. 5 and 6, the existing one-dimensional electric displacement table 205 is selected, the object stage 204 is arranged on the upper part of the one-dimensional electric displacement table with the horizontally connected support, and therefore X, Y, Z degrees of freedom in three directions are formed, and the total four degrees of freedom are formed by adding a U axis (rotating around. Preferably, because the X, Y linear motions in the two horizontal directions are both electrically driven and have installation conditions, the stroke switch 4 and the stroke measuring mechanism 5 are installed on both sides of each linear motion direction, and the composition and function are the same as those of the radiation source module 1, as shown in fig. 5 and 6.
Referring to fig. 7 and 8, the receiver module 3 is composed of a flat receiver 301 and a three-degree-of-freedom motion platform, and the flat receiver 301 is mounted on the three-degree-of-freedom motion platform. Preferably, the three-degree-of-freedom motion platform consists of an L-shaped bracket 302, a middle plate 303 and a bottom plate 304; the flat plate receiver 301 is arranged on the vertical surface of the L-shaped bracket 302, and a lifting mechanism is arranged between the horizontal surface of the L-shaped bracket 302 and the middle plate 303; two parallel guide rails are transversely arranged on the upper surface of the bottom plate 304 along the platform, and the middle plate 303 is in sliding connection with the guide rails through a sliding block; a linear motion mechanism is arranged between the bottom plate 304 and the middle plate 303, the linear motion mechanism is arranged in parallel with the guide rail, the movable end of the linear motion mechanism is fixedly connected with the middle plate 303, and the fixed end of the linear motion mechanism is fixedly connected with the bottom plate 304; two parallel guide rails are longitudinally arranged below the bottom plate 304 along the platform, and the bottom plate 304 is in sliding connection with the guide rails through a sliding block; the linear motion mechanism is longitudinally arranged between the bottom plate 304 and the platform, the movable end of the linear motion mechanism is fixedly connected with the bottom plate 304, and the fixed end of the linear motion mechanism is fixedly connected with the platform, so that the degree of freedom of X, Y, Z in three directions is formed, wherein the linear motion of X, Y in two horizontal directions is electrically driven, and the linear motion mechanism has installation conditions, so that the travel switch 4 and the travel measuring mechanism 5 are arranged on two sides of each linear motion direction, and the composition and the function of the travel switch 4 and the travel measuring mechanism 5 are the same as those of the radiation source module 1.
Preferably, in the above-mentioned technical solution, in order to protect the communication and power supply lines of each electric motion unit (servo motor, one-dimensional electric displacement table 205), it is installed in the drag chain.
The working principle is as follows:
referring to fig. 1 and 2, a product to be detected is placed on the object stage 204 of the product movement module 2, the hand-operated lead screw can be manually adjusted or each linear movement mechanism can be automatically adjusted as required, after the adjustment is completed, the radiation source is started, and the radiation source generator inside the radiation source emission source case 102 can generate radiation and emit the radiation through the emission tube 101. And starting the four-degree-of-freedom motion platform of the product motion module 2, and automatically adjusting and detecting the position and the U-axis angle of the product. Monitoring data are transmitted to an upper computer through the flat receiver 301, a 3D model of a detected product is built through software, and then product flaws are searched.
The above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the examples, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.
Claims (10)
1. Multi freedom CT check out test set, its characterized in that includes: the device comprises a platform, a ray source module (1), a product motion module (2) and a receiver module (3);
the ray source module (1) and the receiver module (3) are respectively distributed at the left end and the right end of the platform and are arranged oppositely, and the product movement module (2) is positioned in the middle area of the ray source module (1) and the receiver module (3);
the radiation source module (1) consists of a two-degree-of-freedom motion platform, a radiation source case (102) and a radiation tube (101); the emission tube (101) is horizontally arranged on one side surface of the emission source case (102); the emission source case (102) is arranged on the two-degree-of-freedom motion platform through a bracket;
the product motion module (2) consists of a four-degree-of-freedom motion platform and an object stage (204), wherein the object stage (204) is arranged on the four-degree-of-freedom motion platform;
the receiver module (3) is composed of a flat receiver (301) and a three-degree-of-freedom motion platform, and the flat receiver (301) is installed on the three-degree-of-freedom motion platform.
2. The CT detection device of claim 1, wherein the emission source housing (102) is a rectangular parallelepiped structure with a heat sink mounted on a side surface thereof.
3. The CT detection apparatus according to claim 1, wherein the two-degree-of-freedom motion platform body structure is composed of a first movable platform (103), a second movable platform (104);
two parallel guide rails are transversely arranged on the upper surface of the second movable platform (104) along the platform, and the first movable platform (103) is in sliding connection with the guide rails through a sliding block; a linear motion mechanism is arranged between the first movable platform (103) and the second movable platform (104), the linear motion mechanism is arranged in parallel with the guide rail, the movable end of the linear motion mechanism is fixedly connected with the first movable platform (103), and the fixed end of the linear motion mechanism is fixedly connected with the second movable platform (104);
two parallel guide rails are longitudinally arranged below the second movable platform (104) along the platform, and the second movable platform (104) is in sliding connection with the guide rails through sliding blocks; the second movable platform (104) and the platform are longitudinally provided with a linear motion mechanism, the movable end of the linear motion mechanism is fixedly connected with the second movable platform (104), and the fixed end of the linear motion mechanism is fixedly connected with the platform.
4. The CT detection device of claim 1, wherein the four-DOF motion platform body structure is composed of a lower plate (201), a middle plate (202), and an upper plate (203);
a rotating mechanism is arranged between the lower plate (201) and the platform, the rotating end of the rotating mechanism is fixedly connected with the lower surface of the lower plate (201), and the fixed end of the rotating mechanism is fixedly connected with the upper surface of the platform;
two parallel guide rails are transversely arranged on the upper surface of the lower plate (201) along the platform, and the middle plate (202) is in sliding connection with the guide rails through a sliding block; a linear motion mechanism is arranged between the lower plate (201) and the middle plate (202), the linear motion mechanism is arranged in parallel with the guide rail, the movable end of the linear motion mechanism is fixedly connected with the middle plate (202), and the fixed end of the linear motion mechanism is fixedly connected with the lower plate (201);
two parallel guide rails are longitudinally arranged on the upper surface of the middle plate (202) along the platform, and the upper plate (203) is in sliding connection with the guide rails through a sliding block; a linear motion mechanism is arranged between the middle plate (202) and the upper plate (203), the linear motion mechanism is arranged in parallel with the guide rail, the movable end of the linear motion mechanism is fixedly connected with the upper plate (203), and the fixed end of the linear motion mechanism is fixedly connected with the middle plate (202);
the upper plate (203) is vertically provided with a linear motion mechanism, and the movable end of the linear motion mechanism is connected with the objective table (204) horizontally through a support.
5. The CT detection apparatus of claim 4, wherein the rotation mechanism is a DD motor.
6. The CT detection device of claim 1, wherein the three-degree-of-freedom motion platform main structure is composed of an L-shaped bracket (302), a middle plate (303) and a bottom plate (304);
the flat plate receiver (301) is arranged on a vertical surface of the L-shaped support (302), and a lifting mechanism is arranged between a horizontal surface of the L-shaped support (302) and the middle plate (303);
two parallel guide rails are transversely arranged on the upper surface of the bottom plate (304) along the platform, and the middle plate (303) is in sliding connection with the guide rails through a sliding block; a linear motion mechanism is arranged between the bottom plate (304) and the middle plate (303), the linear motion mechanism is arranged in parallel with the guide rail, the movable end of the linear motion mechanism is fixedly connected with the middle plate (303), and the fixed end of the linear motion mechanism is fixedly connected with the bottom plate (304);
two parallel guide rails are longitudinally arranged below the bottom plate (304) along the platform, and the bottom plate (304) is in sliding connection with the guide rails through a sliding block; the platform is characterized in that a linear motion mechanism is longitudinally arranged between the bottom plate (304) and the platform, the movable end of the linear motion mechanism is fixedly connected with the bottom plate (304), and the fixed end of the linear motion mechanism is fixedly connected with the platform.
7. The CT detection apparatus according to any one of claims 3-6, characterized in that a set of travel switches (4) are mounted in parallel in the direction of motion of at least one of the linear motion mechanisms.
8. The CT detection device according to claim 7, wherein the travel switches (4) are groove-type photoelectric sensors, three travel switches (4) are arranged in each group, and are sequentially arranged along the movement direction of the linear movement mechanism, the travel switches (4) at two ends are limit switches and send stop signals, and the travel switch (4) in the middle is set as a zero point; the movable end of the linear motion mechanism is fixedly connected with a light screen of the travel switch (4).
9. CT detection device according to one of claims 3 to 6, characterized in that at least one of the linear motion devices is provided with a stroke measuring device (5) arranged side by side in the direction of motion.
10. The CT detection apparatus according to claim 9, wherein the stroke measurement mechanism (5) is a grating ruler; the movable end of the linear motion mechanism is fixedly connected with a grating reading head of the stroke measuring mechanism (5).
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| CN202021397466.7U CN213302051U (en) | 2020-07-15 | 2020-07-15 | Multi-degree-of-freedom CT detection equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113702406A (en) * | 2021-08-27 | 2021-11-26 | 珠海格力智能装备有限公司 | Scanning detection equipment |
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