CN220820003U - Nondestructive flaw detection equipment - Google Patents

Abstract

The utility model discloses nondestructive inspection equipment, which relates to the technical field of nondestructive inspection devices and comprises a T-shaped supporting plate, a guide rod, a connecting supporting plate, a guide screw, a motor, a driving wheel, a driving belt, a driven wheel, a sliding block, a vertical sliding column, a connecting plate, sliding lugs, a locating pin, a fixing hole, a bearing, an L-shaped supporting frame, a sliding column, a limiting block, a spring, an electrical test pen, a movable plate and a clamping assembly. The utility model has the advantage of carrying out nondestructive flaw detection on the wavy or radian metal plate with uniform thickness.

Description

Nondestructive flaw detection equipment

Technical Field

The utility model relates to the technical field of nondestructive inspection devices, in particular to nondestructive inspection equipment.

Background

The nondestructive inspection is to use the characteristics of sound, light, magnetism, electricity and the like to detect whether defects or non-uniformity exist in the detected object on the premise of not damaging or affecting the service performance of the detected object, give out information such as the size, the position, the property, the quantity and the like of the defects, and further judge the total name of all technical means of the technical state of the detected object. When nondestructive testing is carried out on the inside of a metal plate, the electrical test pens are common equipment, usually two electrical test pens are matched for use, when the two electrical test pens move to a position where the inside of the metal plate is defective, the resistance of the defective position can be changed, and the metal plate can be subjected to nondestructive testing by utilizing the characteristic.

However, the prior art has the following defects in the using process: traditional nondestructive test electrical test pencil check out test set only can detect straight metal sheet, can not detect wave or radian's metal sheet, and application scope is less.

Disclosure of utility model

In order to overcome the defects in the prior art, the utility model aims to provide nondestructive inspection equipment so as to solve the problems in the background art. The utility model has the advantage of carrying out nondestructive flaw detection on the wavy or radian metal plate with uniform thickness.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the nondestructive inspection equipment comprises a T-shaped supporting plate, a guide rod, a connecting supporting plate, a guide screw, a motor, a driving wheel, a transmission belt, a driven wheel, a sliding block, a vertical sliding column, a connecting plate, a sliding lug, a positioning pin, a fixing hole, a bearing, an L-shaped supporting frame, a sliding column, a limiting block, a spring, an electrical test pen, a movable plate and a clamping assembly, wherein the clamping assembly is arranged on the lower side of the T-shaped supporting plate, the guide rod is horizontally arranged on the upper side of the T-shaped supporting plate, the end part of the guide rod is provided with the connecting supporting plate, the guide screw penetrates through the T-shaped supporting plate and the connecting supporting plate, the guide screw is in rotary connection with the T-shaped supporting plate and the connecting supporting plate through a bearing, the end part of the guide screw which extends outwards is provided with the driven wheel, the motor is arranged on the clamping assembly, the driving wheel which is matched with the driven wheel is arranged on an output shaft of the motor, the driving wheel is in transmission connection with the transmission belt, the horizontal sliding block is connected with the guide rod through the transmission belt, two ends of the sliding block are in threaded connection with the guide screw, the vertical sliding columns are arranged on the sliding block through the sliding lug, the two ends of the sliding block are fixedly connected with the lower surfaces of the connecting plate, the end parts of the vertical sliding column through the sliding column, the upper end of the vertical sliding column and the connecting plate are fixedly arranged on the end part of the connecting plate, the end part of the guide rod and the end part is in the L-shaped sliding sleeve is in the sliding fit with the L-shaped sliding plate, and the end part is correspondingly to the L-shaped sliding sleeve, and the end part is arranged on the end part, and the end part is in the sliding and the end is in the sliding. A plurality of fixing holes which are correspondingly matched with the positioning pins are uniformly formed in the vertical sliding column at equal intervals, two electrical measuring pens are connected with an external resistance meter, when nondestructive inspection and detection are required to be carried out on a wavy or radian metal plate, the device is arranged on the wavy metal plate to be detected through the clamping component, the spring can push the movable plate to move inwards, the movable plate can drive the electrical measuring pens to move until the end parts of the electrical measuring pens move to the positions which are clung to the metal plate, the motor is turned on, the output shaft of the motor drives the driving wheel to rotate, the driving wheel drives the driven wheel to rotate through the driving belt, the driven wheel drives the guide screw to rotate, the guide screw is provided with threads matched with the sliding block, so that the guide screw can drive the sliding block to slide along the guide rod when rotating, the sliding block drives the vertical sliding column to move through the sliding lugs, the vertical sliding column drives the bearing to move, the bearing drives the L-shaped supporting frame to move, the L-shaped supporting frame drives the sliding column to move, the sliding column drives the movable plate to move, the movable plate drives the electrical test pen to move, so that the electrical test pen slowly moves along the side face of the wavy metal plate, when the electrical test pen moves to a position with radian on the wavy metal plate, the electrical test pen is clung to the arc face of the wavy metal plate under the action of the spring, meanwhile, the L-shaped supporting frame can rotate around the bearing, the electrical test pen is connected with the sliding column into a whole with the L-shaped supporting frame through the movable plate, the electrical test pen gradually rotates when the electrical test pen moves to be clung to the arc face, the end part of the electrical test pen can be clung to the wavy metal plate, when the electrical test pen moves to a position with defects in a certain position on the wavy metal plate, the numerical value displayed on the resistance meter can be obviously changed, at this time, the defect in the wavy metal plate can be known through the resistance meter, when nondestructive inspection is required to be carried out on different heights of the wavy metal plate, the positioning pin is pulled outwards until the positioning pin moves out of the fixing hole, the connecting plate is pulled, the connecting plate drives the vertical sliding column to move upwards along the sliding lug, the vertical sliding column drives the bearing to move upwards, the bearing drives the L-shaped supporting frame to move upwards, the L-shaped supporting frame drives the sliding column to move upwards, the sliding column drives the movable plate to move upwards, the movable plate drives the electrical test pen to move upwards, the connecting plate is stopped from being pulled until the electrical test pen moves to the height required to be detected, the positioning pin moves inwards until the positioning pin enters into the fixing hole, the vertical sliding column is fixed, and therefore height adjustment is completed, and nondestructive inspection is conveniently carried out on different positions of the wavy metal plate.

Further, the clamping assembly comprises a concave frame, clamping plates, clamping screws and a guide slide column, the concave frame is arranged on the lower side of the T-shaped supporting plate, two corresponding matched clamping plates are connected to the concave frame in a sliding mode through the guide slide column, two ends of the clamping screws penetrate through the concave frame, two ends of the clamping screws are connected with the concave frame in a rotating mode through bearings, two sections of rotating lines matched with the clamping plates in a threaded mode are arranged on the clamping screws, the two sections of rotating lines are opposite in direction, the wavy metal plates to be detected are vertically placed, the guide slide column is driven to move by the moving concave frame, the clamping plates are driven to move by the guide slide column, the two clamping plates are located on two sides of the wavy metal plates to be detected, and the clamping screws are driven to move in opposite directions along the guide slide column until the clamping plates are clamped on the wavy metal plates.

Further, the tip that the clamping screw outwards extends is provided with the carousel, a plurality of recess has evenly been seted up to a week equiangular degree of carousel, rotates the carousel and drives the clamping screw rotation, and the carousel has increased the radius of rotation of clamping screw, and the rotation moment increases for it is light laborsaving more when rotating, and the frictional force between hand and the carousel can be increased to the recess, makes avoid the hand to slide when rotating.

Further, two opposite sides of grip block are provided with the cushion, and the cushion can take place deformation when the centre gripping, not only can make the tighter of centre gripping, still can avoid grip block and metal sheet rigid contact to produce the damage to the metal sheet.

Further, the inside lower surface of L shape support frame is provided with a slide section of thick bamboo, be provided with on the fly leaf with slide section of thick bamboo sliding connection's slip support bar, the side of L shape support frame is offered and is corresponded complex logical groove with the slip support bar, can drive the slip support bar and slide along the slide section of thick bamboo when the fly leaf removes, and the slip support bar can carry out further support to the fly leaf, reinforcing stability.

Further, two sliding columns are installed on the lower side of the L-shaped supporting frame in a sliding mode, the two sliding columns are connected with the movable plate, and stability can be enhanced through the two sliding columns.

Furthermore, the driving wheel and the driven wheel are provided with concave limiting grooves, the driving belt is positioned in the limiting grooves, and the driving wheel and the driven wheel are provided with limiting grooves, so that the driving belt can be prevented from falling off from the driving wheel and the driven wheel.

Based on the technical scheme, the nondestructive inspection equipment has the following beneficial effects that the nondestructive inspection equipment is practically applied:

According to the utility model, the electric test pen can be tightly attached to the wavy metal plate by utilizing the matching of the sliding column and the spring, the guide screw can be driven to rotate by utilizing the matching of the motor and the driving belt, the guide screw is in threaded matching with the sliding block, the sliding block can be driven to move by the guide screw, the sliding block can drive the L-shaped supporting frame to move by the sliding lug, the L-shaped supporting frame can drive the electric test pen to move along the wavy metal plate, the electric test pen can gradually rotate when being tightly attached to the arc surface by utilizing the matching of the bearing and the L-shaped supporting frame, the end part of the electric test pen can be tightly attached to the wavy metal plate, nondestructive inspection can be conveniently carried out on the wavy metal plate or the metal plate with radian, the application range is increased, and the height of the vertical sliding column can be conveniently adjusted by utilizing the matching of the positioning pin and the fixing hole, so that the positions of different heights on the wavy metal plate can be conveniently adjusted.

Drawings

Fig. 1 is a schematic perspective view of the present utility model.

Fig. 2 is a schematic perspective view of a clamping assembly according to the present utility model.

Fig. 3 is a schematic view showing a bottom perspective structure of the present utility model.

Fig. 4 is a schematic perspective view of the present utility model installed after the wavy metal plate in use.

In the figure: 1 concave frame, 2 turntables, 3 clamping plates, 4 cushion blocks, 5T-shaped supporting plates, 6 guide rods, 7 connecting supporting plates, 8 guide screws, 9 motors, 10 driving wheels, 11 driving belts, 12 driven wheels, 13 sliding blocks, 14 vertical sliding columns, 15 connecting plates, 16 sliding lugs, 17 positioning pins, 18 sliding supporting strips, 19 fixing holes, 20 tapered roller bearings, 21L-shaped supporting frames, 22 through grooves, 23 sliding columns, 24 limiting blocks, 25 springs, 26 electrical test pens, 27 movable plates, 28 clamping screws, 29 guide sliding columns and 30 sliding cylinders.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, the present embodiment provides a technical solution: the nondestructive inspection equipment comprises a T-shaped supporting plate 5, a guide rod 6, a connecting supporting plate 7, a guide screw 8, a motor 9, a driving wheel 10, a driving belt 11, a driven wheel 12, a sliding block 13, a vertical sliding column 14, a connecting plate 15, a sliding lug 16, a positioning pin 17, a fixing hole 19, a bearing 20, an L-shaped supporting frame 21, a sliding column 23, a limiting block 24, a spring 25, an electrical test pen 26, a movable plate 27 and a clamping assembly, wherein the lower side of the T-shaped supporting plate 5 is provided with the clamping assembly, the upper side of the T-shaped supporting plate 5 is horizontally provided with the guide rod 6, the end part of the guide rod 6 is provided with the connecting supporting plate 7, the guide screw 8 penetrates through the T-shaped supporting plate 5 and the connecting supporting plate 7, the guide screw 8 is rotationally connected with the T-shaped supporting plate 5 and the connecting supporting plate 7 through a bearing, the end part of the guide screw 8 extending outwards is provided with the driven wheel 12, the motor 9 is arranged on the clamping assembly, the output shaft of the motor 9 is provided with a driving wheel 10 matched with a driven wheel 12, the driving wheel 10 is in transmission connection with the driven wheel 12 through a transmission belt 11, a horizontal sliding block 13 is connected on a guide rod 6 in a sliding way, the sliding block 13 is in threaded connection with a guide screw 8, two ends of the sliding block 13 are provided with vertical sliding columns 14 in a sliding way through sliding lugs 16, the tops of the two vertical sliding columns 14 are fixedly connected with the lower surface of a connecting plate 15, the lower ends of the vertical sliding columns 14 are in rotary connection with the upper surface of an L-shaped supporting frame 21 through bearings 20, the lower sides of the two L-shaped supporting frames 21 are respectively and horizontally provided with a sliding column 23 in a sliding way, the inward extending end parts of the sliding columns 23 are provided with movable plates 27, the movable plates 27 are provided with electrical test pens 26, the two electrical test pens 26 are correspondingly matched with each other, the outward extending end parts of the sliding columns 23 are provided with limiting blocks 24, the part of the sliding column 23, which is positioned on the L-shaped supporting frame 21 and the movable plate 27, is movably sleeved with a spring 25, the side end of the sliding lug 16 is provided with a positioning pin 17, a plurality of fixing holes 19 which are correspondingly matched with the positioning pin 17 are uniformly formed on the vertical sliding column 14 at equal intervals, two electrical test pens 26 are connected with an external resistance meter, when nondestructive flaw detection is required to be carried out on a wavy or radian metal plate, the device is arranged on the wavy metal plate to be detected through a clamping assembly, the spring 25 can push the movable plate 27 to move inwards, the movable plate 27 can drive the electrical test pens 26 to move until the end part of the electrical test pens 26 moves to a position which is clung to the metal plate, a motor 9 is turned on, an output shaft of the motor 9 drives a driving wheel 10 to rotate, the driving wheel 10 drives a driven wheel 12 to rotate through a transmission belt 11, the driven wheel 12 drives a guide screw 8 to rotate, and threads matched with a sliding block 13 are arranged on the guide screw 8, therefore, when the lead screw 8 rotates, the slide block 13 is driven to slide along the guide rod 6, the slide block 13 drives the vertical slide column 14 to move through the slide lug 16, the vertical slide column 14 drives the bearing 20 to move, the bearing 20 drives the L-shaped support frame 21 to move, the L-shaped support frame 21 drives the slide column 23 to move, the slide column 23 drives the movable plate 27 to move, the movable plate 27 drives the electrical test pen 26 to move, so that the electrical test pen 26 slowly moves along the side surface of the wavy metal plate, when the electrical test pen 26 moves to a position with radian on the wavy metal plate, the electrical test pen 26 is tightly attached to the arc surface of the wavy metal plate under the action of the spring 25, meanwhile, because the L-shaped support frame 21 can rotate around the bearing 20, the electrical test pen 26 is connected with the L-shaped support frame 21 into a whole through the movable plate 27, the electrical test pen 26 gradually rotates when being tightly attached to the arc surface, therefore, the end part of the electrical test pencil 26 can be tightly attached to the wavy metal plate, when the electrical test pencil 26 moves to a position with a defect in a certain position on the wavy metal plate, the numerical value displayed on the resistance meter can be obviously changed, at the moment, the defect in the position on the wavy metal plate can be known through the resistance meter, when nondestructive inspection is required to be carried out on different heights on the wavy metal plate, the positioning pin 17 is pulled outwards until the positioning pin 17 moves out of the fixing hole 19, the connecting plate 15 is pulled, the connecting plate 15 drives the vertical sliding column 14 to move upwards along the sliding lugs 16, the vertical sliding column 14 drives the bearing 20 to move upwards, the bearing 20 drives the L-shaped supporting frame 21 to move upwards, the L-shaped supporting frame 21 drives the sliding column 23 to move upwards, the movable plate 27 drives the electrical test pencil 26 to move upwards, after the electrical test pencil 26 moves to the height to be detected, the positioning pin 17 is stopped from moving inwards until the positioning pin 17 enters the fixing hole 19, the vertical sliding column 14 is fixed, and therefore the nondestructive inspection on the wavy metal plate can be conveniently carried out on different positions.

Further, the clamping assembly comprises a concave frame 1, clamping plates 3, clamping screws 28 and a guide slide column 29, the concave frame 1 is arranged on the lower side of the T-shaped supporting plate 5, two clamping plates 3 which are correspondingly matched are slidably connected to the concave frame 1 through the guide slide column 29, two ends of the clamping screws 28 penetrate through the concave frame 1, two ends of the clamping screws 28 are rotatably connected with the concave frame 1 through bearings, two sections of rotating lines which are in threaded fit with the clamping plates 3 are arranged on the clamping screws 28, the directions of the two sections of rotating lines are opposite, the wavy metal plates to be detected are vertically placed, the concave frame 1 is moved to drive the guide slide column 29 to move, the guide slide column 29 drives the clamping plates 3 to move, the two clamping plates 3 are located on two sides of the wavy metal plates to be detected, and the clamping screws 28 are rotated to drive the two clamping plates 3 to move along the guide slide column 29 until the clamping plates 3 are clamped on the wavy metal plates.

Further, the end part of the clamping screw 28 extending outwards is provided with the rotary table 2, a plurality of grooves are uniformly formed in a circle of the rotary table 2 at equal angles, the rotary table 2 drives the clamping screw 28 to rotate, the rotary table 2 increases the rotation radius of the clamping screw 28, the rotation moment is increased, so that the rotation is easier and more labor-saving, the grooves can increase the friction between hands and the rotary table 2, and the hands are prevented from sliding during rotation; the cushion blocks 4 are arranged on the opposite sides of the two clamping plates 3, and the cushion blocks 4 deform during clamping, so that clamping is tighter, and damage to the metal plates due to rigid contact of the clamping plates 3 and the metal plates is avoided; the sliding cylinder 30 is arranged on the lower surface of the inner part of the L-shaped supporting frame 21, the sliding supporting bar 18 which is in sliding connection with the sliding cylinder 30 is arranged on the movable plate 27, the through groove 22 which is correspondingly matched with the sliding supporting bar 18 is formed in the side surface of the L-shaped supporting frame 21, the sliding supporting bar 18 is driven to slide along the sliding cylinder 30 when the movable plate 27 moves, and the sliding supporting bar 18 can further support the movable plate 27, so that the stability is enhanced; the two sliding columns 23 are arranged on the lower side of the L-shaped supporting frame 21 in a sliding way, the two sliding columns 23 are connected with the movable plate 27, and the two sliding columns 23 can enhance stability; the driving wheel 10 and the driven wheel 12 are provided with concave limiting grooves, the driving belt 11 is positioned in the limiting grooves, and the driving wheel 10 and the driven wheel 12 are provided with limiting grooves, so that the driving belt 11 can be prevented from falling off from the driving wheel 10 and the driven wheel 12.

The working principle of the nondestructive flaw detection equipment provided by the utility model is as follows: when nondestructive inspection is required to be performed on a wavy or radian metal plate, the wavy metal plate to be inspected is vertically placed, the concave frame 1 is moved to drive the guide slide columns 29 to move, the guide slide columns 29 drive the clamping plates 3 to move, the two clamping plates 3 are positioned on two sides of the wavy metal plate to be inspected, the rotary table 2 drives the clamping screw rods 28 to rotate, as the clamping screw rods 28 are provided with two sections of opposite rotary patterns, the clamping screw rods 28 can drive the two clamping plates 3 to move oppositely along the guide slide columns 29 until the clamping plates 3 are clamped on the wavy metal plate, so that the device is arranged on the wavy metal plate to be inspected, the springs 25 can push the movable plates 27 to move inwards, the movable plates 27 can drive the electric test pens 26 to move until the end parts of the electric test pens 26 are moved to positions clung to the metal plate, the motor 9 is turned on, the output shaft of the motor 9 drives the driving wheel 10 to rotate, the driving wheel 10 drives the driven wheel 12 to rotate through the transmission belt 11, the driven wheel 12 drives the guide screw 8 to rotate, the guide screw 8 is provided with threads matched with the sliding block 13, so that the sliding block 13 is driven to slide along the guide rod 6 when rotating, the sliding block 13 drives the vertical sliding column 14 to move through the sliding lug 16, the vertical sliding column 14 drives the bearing 20 to move, the bearing 20 drives the L-shaped supporting frame 21 to move, the L-shaped supporting frame 21 drives the sliding column 23 to move, the sliding column 23 drives the movable plate 27 to move, the movable plate 27 drives the electric test pen 26 to move, the electric test pen 26 slowly moves along the side surface of the wavy metal plate, when moving to the position with radian on the wavy metal plate, the electric test pen 26 is clung to the arc surface of the wavy metal plate under the action of the spring 25, meanwhile, because the L-shaped supporting frame 21 can rotate around the bearing 20, and the electric test pencil 26 is connected with the sliding column 23 and the L-shaped supporting frame 21 into a whole through the movable plate 27, the electric test pencil 26 can gradually rotate when being closely attached to the arc surface, so that the end part of the electric test pencil 26 can be closely attached to the wavy metal plate, when the electric test pencil 26 moves to a position with a defect in a certain part of the wavy metal plate, the numerical value displayed on the resistance meter can be obviously changed, at the moment, the defect in the part of the wavy metal plate can be known through the resistance meter, when nondestructive inspection is required to be carried out on different heights of the wavy metal plate, the positioning pin 17 is pulled outwards, after the locating pin 17 moves out of the fixing hole 19, the connecting plate 15 is pulled, the connecting plate 15 drives the vertical sliding column 14 to move upwards along the sliding lug 16, the vertical sliding column 14 drives the bearing 20 to move upwards, the bearing 20 drives the L-shaped supporting frame 21 to move upwards, the L-shaped supporting frame 21 drives the sliding column 23 to move upwards, the sliding column 23 drives the movable plate 27 to move upwards, the movable plate 27 drives the electrical test pen 26 to move upwards until the electrical test pen 26 moves to the height to be detected, the connecting plate 15 is stopped being pulled, the locating pin 17 moves inwards until the locating pin 17 enters into the fixing hole 19, and the vertical sliding column 14 is fixed, so that the height is adjusted, and nondestructive flaw detection on different positions on the wavy metal plate is facilitated.

The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.

Claims (7)

1. A non-destructive inspection apparatus, characterized in that: including T shape backup pad (5), guide bar (6), connection backup pad (7), lead screw (8), motor (9), action wheel (10), driving belt (11), follow driving wheel (12), slider (13), vertical traveller (14), connecting plate (15), sliding ear (16), locating pin (17), fixed orifices (19), bearing (20), L shape support frame (21), sliding column (23), stopper (24), spring (25), electrical test pencil (26), fly leaf (27) and clamping assembly, the downside of T shape backup pad (5) is provided with clamping assembly, the upside level of T shape backup pad (5) is provided with guide bar (6), the tip of guide bar (6) is provided with connection backup pad (7), lead screw (8) run through T shape backup pad (5) and connection backup pad (7), and lead screw (8) are connected through the bearing and T shape backup pad (5) rotation, the tip of outwards extending of lead screw (8) is provided with from driving wheel (12), motor (9) set up on clamping assembly, and motor (9) are provided with action wheel (10) on the upside level of driving wheel (6), the driving wheel (10) is in transmission connection with the driven wheel (12) through a transmission belt (11), a horizontal sliding block (13) is connected to the guide rod (6) in a sliding manner, the sliding block (13) is in threaded connection with the guide screw (8), two ends of the sliding block (13) are provided with vertical sliding columns (14) in a sliding manner through sliding lugs (16), the tops of the two vertical sliding columns (14) are fixedly connected with the lower surface of the connecting plate (15), the lower ends of the vertical sliding columns (14) are in rotary connection with the upper surface of the L-shaped supporting frame (21) through bearings (20), sliding columns (23) are respectively and horizontally arranged on the lower sides of the two L-shaped supporting frames (21) in a sliding manner, the end that slip post (23) inwards extends is provided with fly leaf (27), and is provided with electrical test pencil (26) on fly leaf (27), and two electrical test pencil (26) correspond the cooperation each other, the tip that outwards extends of slip post (23) is provided with stopper (24), slip post (23) are in L shape support frame (21) and the partly movable sleeve of fly leaf (27) has spring (25), the side of sliding ear (16) is provided with locating pin (17), a plurality of and locating pin (17) corresponding complex fixed orifices (19) have evenly been seted up to the equidistance on vertical sliding column (14).

2. A nondestructive inspection apparatus according to claim 1, wherein: the clamping assembly comprises a concave frame (1), clamping plates (3), clamping screws (28) and a guide slide column (29), wherein the concave frame (1) is arranged on the lower side of the T-shaped supporting plate (5), two corresponding clamping plates (3) are slidably connected to the concave frame (1) through the guide slide column (29), the two ends of the clamping screws (28) penetrate through the concave frame (1), the two ends of the clamping screws (28) are rotatably connected with the concave frame (1) through bearings, two sections of rotating lines which are in threaded fit with the clamping plates (3) are arranged on the clamping screws (28), and the directions of the two sections of rotating lines are opposite.

3. A nondestructive inspection apparatus according to claim 2, wherein: the end part of the clamping screw rod (28) extending outwards is provided with a rotary table (2), and a plurality of grooves are uniformly formed in the periphery of the rotary table (2) at equal angles.

4. A nondestructive inspection apparatus according to claim 2, wherein: one side of the two clamping plates (3) opposite to each other is provided with a cushion block (4).

5. A nondestructive inspection apparatus according to claim 1, wherein: the sliding support is characterized in that a sliding cylinder (30) is arranged on the lower surface of the inner portion of the L-shaped support frame (21), a sliding support bar (18) which is in sliding connection with the sliding cylinder (30) is arranged on the movable plate (27), and a through groove (22) which is correspondingly matched with the sliding support bar (18) is formed in the side face of the L-shaped support frame (21).

6. A nondestructive inspection apparatus according to claim 1, wherein: two sliding columns (23) are arranged on the lower side of the L-shaped supporting frame (21) in a sliding mode, and the two sliding columns (23) are connected with a movable plate (27).

7. A nondestructive inspection apparatus according to claim 1, wherein: concave limiting grooves are formed in the driving wheel (10) and the driven wheel (12), and the transmission belt (11) is positioned in the limiting grooves.