A small diameter bar ultrasonic nondestructive testing equipment
By designing clamping and lifting components, the problems of bar material inspection equipment being unable to rotate and adjust its height have been solved, enabling multi-position inspection and improving applicability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI NONFERROUS METALS IND TECH MONITORING CENT CO LTD
- Filing Date
- 2025-05-21
- Publication Date
- 2026-06-05
AI Technical Summary
Existing bar inspection equipment cannot rotate the clamped bar, making it difficult to inspect different positions, and it cannot adjust the height of the device according to the height of the staff.
A clamping assembly and a lifting assembly were designed. The clamping assembly uses a motor to drive a bidirectional lead screw and a rotating shaft to rotate the bar. The lifting assembly uses a screw and a lever to adjust the height of the box.
It enables the detection of bars at different positions and the height adjustment of the device, making it convenient for the detection of bars of different diameters and suitable for use by workers of different heights.
Smart Images

Figure CN224328094U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of bar testing technology, specifically relating to an ultrasonic non-destructive testing device for small-diameter bars. Background Technology
[0002] Bar stock refers to steel with simple cross-sectional shapes such as round, square, flat, hexagonal, and octagonal. It is typically delivered in straight bars, except for concrete reinforcing bars.1 Bar stock has various industrial applications, including but not limited to hardware and kitchenware, shipbuilding, petrochemicals, machinery, pharmaceuticals, food, power, energy, construction and decoration, nuclear power, aerospace, and military industries.
[0003] Chinese Patent Application No. 2023227163223 discloses an ultrasonic non-destructive testing device for stainless steel bars, relating to the field of ultrasonic non-destructive testing technology for stainless steel bars. It solves the problem of not being able to automatically position the ends of stainless steel bars according to their length. The device includes a housing, with a controller fixedly connected to one side of the front of the housing and supports fixedly connected to both sides of the back of the housing. An electric slide rail is mounted on the side of the supports away from the housing, and an electric slide rail base is slidably connected to the surface of the electric slide rail. A support arm is fixedly connected to the top of the electric slide rail base. By setting auxiliary components, a servo motor provides forward and reverse drive, and the cooperation of drive gears, racks, extension rods, supports, clamps, and slots enables automatic positioning of the ends of the stainless steel bars according to their length, saving time and effort and improving the testing efficiency of stainless steel bars.
[0004] The aforementioned patent, after clamping the rod to be tested, cannot rotate the rod, making it inconvenient to test different positions of the rod. At the same time, the original device cannot adjust the box to a suitable height according to the height of the staff. Utility Model Content
[0005] To address the problems mentioned in the background art, this utility model provides an ultrasonic non-destructive testing device for small-diameter bars, which has the feature of being able to rotate the clamped bar, facilitating testing at different positions of the bar.
[0006] To achieve the above objectives, this utility model provides the following technical solution: an ultrasonic non-destructive testing device for small-diameter bars, comprising a housing, an electric slide rail at the rear end of the housing, a slide block sliding on the electric slide rail, a fixing frame fixed at the upper end of the slide block, an ultrasonic testing instrument installed at the other end of the fixing frame, a lifting assembly at the lower side of the housing, and a clamping assembly at the upper end of the housing.
[0007] Preferably, the clamping assembly includes a vertical plate, a first motor, a bidirectional lead screw, a movable plate, a slide groove, a disc, a second motor, a rotating shaft, and an installation assembly. The first motor is mounted at one end of the housing, and a bidirectional lead screw is installed at the output end of the first motor. Movable plates are threaded onto both sides of the surface of the bidirectional lead screw. A vertical plate is fixed to the upper end of the movable plate. A slide groove corresponding to the movable plate is opened at the upper end of the housing. A rotating shaft is rotatably connected to the upper side of one end of each of the two vertical plates. A disc is mounted at one end of the rotating shaft. A second motor is mounted at the upper side of one end of one vertical plate at a position corresponding to the rotating shaft. The output end of the second motor is fixedly connected to the rotating shaft. The disc and the rotating shaft are connected by the installation assembly.
[0008] Preferably, the mounting assembly includes a fixing bolt, a insert plate, a slot, a fixing hole, and a through hole. The insert plate is fixed to one end of the disc near the rotating shaft, and a slot corresponding to the insert plate is opened at one end of the rotating shaft. The insert plate and the rotating shaft are connected by a fixing bolt. The insert plate has a fixing hole corresponding to the fixing bolt, and the rotating shaft has a through hole corresponding to the fixing bolt.
[0009] Preferably, bearing rotating seats are provided between the bidirectional lead screw and the housing, and between the rotating shaft and the vertical plate, and the two moving plates are threaded to the bidirectional lead screw in opposite directions.
[0010] Preferably, the lifting assembly includes a fixed frame, a mounting plate, a screw, a lever, a sliding plate, and a sliding column. The fixed frame is provided on the lower side of the housing, and the mounting plate is fixed on the lower sides of both ends of the fixed frame. The screw is rotatably connected to the fixed frame, and several levers are fixed on the lower side of the screw surface. The sliding plate is threadedly connected to the screw surface, and the sliding plate is connected to the housing through a sliding column.
[0011] Preferably, the two ends of the slide plate are tightly attached to the inner wall of the fixed frame, and the upper end of the fixed frame has sliding holes on both sides corresponding to the sliding column. When the lower end of the box is in contact with the upper end of the fixed frame, the lower end of the slide plate is higher than the upper end of the lever.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] 1. This utility model, by setting up a clamping assembly, places the bar to be tested between two discs. Motor 1 is turned on to drive a bidirectional lead screw to rotate. The rotation of the bidirectional lead screw causes two moving plates to move closer together. The upper part of the moving plates moves in a sliding groove, and the movement of the moving plates causes the upper vertical plate to move. The two discs clamp and fix the bar. Motor 2 is turned on to drive a rotating shaft to rotate, and the rotation of the rotating shaft causes the bar to rotate. By setting up the clamping assembly, the bar to be tested can be clamped and rotated, thus facilitating the testing of different positions of the bar.
[0014] 2. This utility model uses a lifting assembly to fix the frame by screwing screws through the mounting plate into the ground. A lever moves the screw to rotate within the frame, causing the sliding plate to rise and fall within the frame. The rising and falling of the sliding plate, in turn, pushes the box to rise and fall via a sliding column. By using the lifting assembly, the box can be adjusted to a suitable height according to the height of the worker, thus improving the practicality of the device. Attached Figure Description
[0015] Figure 1 This is a perspective view of the present utility model;
[0016] Figure 2 This is a sectional perspective view of the housing of this utility model;
[0017] Figure 3 This is a perspective view of the disc of this utility model during installation;
[0018] In the diagram: 1. Housing; 2. Clamping assembly; 21. Vertical plate; 22. Motor 1; 23. Two-way lead screw; 24. Moving plate; 25. Slide groove; 26. Disc; 27. Motor 2; 28. Rotating shaft; 29. Mounting assembly; 291. Fixing bolt; 292. Insert plate; 293. Slot; 294. Fixing hole; 295. Through hole; 3. Lifting assembly; 31. Fixing frame; 32. Mounting plate; 33. Screw; 34. Lever; 35. Slide plate; 36. Slide column; 4. Electric slide rail; 5. Slide base; 6. Fixing frame; 7. Ultrasonic detector. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0020] Example 1
[0021] Please see Figure 1-3 The present invention provides the following technical solution: an ultrasonic non-destructive testing device for small-diameter bars, comprising a housing 1, an electric slide rail 4 at the rear end of the housing 1, a slide seat 5 sliding on the electric slide rail 4, a fixing frame 6 fixed at the upper end of the slide seat 5, an ultrasonic detector 7 installed at the other end of the fixing frame 6, a lifting component 3 at the lower side of the housing 1, and a clamping component 2 at the upper end of the housing 1.
[0022] Specifically, the clamping assembly 2 includes a vertical plate 21, a first motor 22, a bidirectional lead screw 23, a moving plate 24, a slide groove 25, a disc 26, a second motor 27, a rotating shaft 28, and an installation assembly 29. The first motor 22 is installed at one end of the housing 1. The output end of the first motor 22 is equipped with a bidirectional lead screw 23. The moving plate 24 is threaded onto both sides of the surface of the bidirectional lead screw 23. A vertical plate 21 is fixed to the upper end of the moving plate 24. A slide groove 25 corresponding to the moving plate 24 is opened at the upper end of the housing 1. A rotating shaft 28 is rotatably connected to the upper side of one end of the two vertical plates 21. A disc 26 is installed at one end of the rotating shaft 28. A second motor 27 is installed at the upper side of one end of one vertical plate 21 at a position corresponding to the rotating shaft 28. The output end of the second motor 27 is fixedly connected to the rotating shaft 28. The disc 26 and the rotating shaft 28 are connected by the installation assembly 29.
[0023] By adopting the above technical solution, the bar to be tested is placed between two discs 26. The motor 22 is turned on to drive the bidirectional lead screw 23 to rotate. The rotation of the bidirectional lead screw 23 causes the two moving plates 24 to move closer to each other. The upper end of the moving plate 24 moves in the slide groove 25. The movement of the moving plate 24 causes the upper vertical plate 21 to move. The two discs 26 clamp and fix the bar. The motor 27 is turned on to drive a rotating shaft 28 to rotate. The rotation of the rotating shaft 28 causes the bar to rotate. By setting the clamping assembly 2, the bar to be tested can be clamped and rotated, which facilitates the testing of different positions of the bar.
[0024] Specifically, the mounting component 29 includes a fixing bolt 291, a insert plate 292, a slot 293, a fixing hole 294, and a through hole 295. The insert plate 292 is fixed to one end of the disc 26 near the rotating shaft 28. The rotating shaft 28 has a slot 293 corresponding to the insert plate 292 at one end. The insert plate 292 and the rotating shaft 28 are connected by the fixing bolt 291. The insert plate 292 has a fixing hole 294 corresponding to the fixing bolt 291, and the rotating shaft 28 has a through hole 295 corresponding to the fixing bolt 291.
[0025] By adopting the above technical solution, a disc 26 with a suitable diameter for the bar to be tested is selected. The insert plate 292 at one end of the disc 26 is inserted into the slot 293 at one end of the rotating shaft 28. The fixing bolt 291 is inserted into the through hole 295 of the rotating shaft 28 and screwed into the fixing hole 294 of the insert plate 292, thereby achieving the effect of limiting and fixing the insert plate 292 and the disc 26. By setting the installation component 29, the disc 26 can be replaced according to the diameter of the bar to be tested in different batches, thus facilitating the testing of bars with different diameters.
[0026] Specifically, bearing rotating seats are provided between the bidirectional lead screw 23 and the housing 1, and between the rotating shaft 28 and the vertical plate 21. The two moving plates 24 are threaded to the bidirectional lead screw 23 in opposite directions.
[0027] By adopting the above technical solution, the bidirectional lead screw 23 and the rotating shaft 28 can rotate on the housing 1 and the vertical plate 21 respectively, and the rotation of the bidirectional lead screw 23 can drive the two moving plates 24 to move towards each other.
[0028] In this embodiment, when using the ultrasonic non-destructive testing equipment for small-diameter bars, the device is installed in a suitable position. The slide 5 can move on the electric slide rail 4. The movement of the slide 5 drives the ultrasonic testing instrument 7 to move via the fixing frame 6, enabling the testing of the bars. By setting the clamping assembly 2, the bar to be tested is placed between the two discs 26. The motor 1 22 is turned on to drive the bidirectional lead screw 23 to rotate. The rotation of the bidirectional lead screw 23 causes the two moving plates 24 to move closer to each other. The upper end of the moving plate 24 moves in the slide groove 25. The movement of the moving plate 24 causes the upper vertical plate 21 to move. The two discs 26 clamp and fix the bar. The motor 22 is turned on to drive a rotating shaft 28 to rotate. The rotation of the rotating shaft 28 causes the bar to rotate. By setting the clamping component 2, the bar to be inspected can be clamped and rotated, thus facilitating the inspection of different positions of the bar. By setting the mounting component 29, a disc 26 with a suitable diameter for the bar to be inspected is selected. The insert plate 292 at one end of the disc 26 is inserted into the slot 293 at one end of the rotating shaft 28, and the fixing bolt 291 is inserted into the through hole 295 of the rotating shaft 28 and screwed into the fixing hole 294 of the insert plate 292, thereby achieving the effect of limiting and fixing the insert plate 292 and the disc 26. By setting the mounting component 29, the disc 26 can be replaced according to the diameter of the bar to be inspected in different batches, thus facilitating the inspection of bars with different diameters.
[0029] Example 2
[0030] The difference between this embodiment and embodiment 1 is that the lifting assembly 3 includes a fixed frame 31, a mounting plate 32, a screw 33, a lever 34, a sliding plate 35, and a sliding column 36. The fixed frame 31 is provided on the lower side of the housing 1. The mounting plate 32 is fixed on the lower side of both ends of the fixed frame 31. The screw 33 is rotatably connected in the fixed frame 31. Several levers 34 are fixed on the lower side of the surface of the screw 33. The sliding plate 35 is threadedly connected to the surface of the screw 33. The sliding plate 35 is connected to the housing 1 through the sliding column 36.
[0031] By adopting the above technical solution, screws are screwed into the ground through the mounting plate 32 to achieve the effect of fixing the fixed frame 31. The lever 34 moves the screw 33 to rotate in the fixed frame 31. The rotation of the screw 33 drives the slide plate 35 to rise and fall in the fixed frame 31. The rise and fall of the slide plate 35 pushes the box 1 to rise and fall through the sliding column 36. By setting the lifting component 3, the box 1 can be adjusted to a suitable height according to the height of the staff, thus improving the practicality of the device.
[0032] Specifically, the two ends of the slide plate 35 are tightly attached to the inner wall of the fixed frame 31. The upper end of the fixed frame 31 has sliding holes on both sides corresponding to the sliding column 36. When the lower end of the box 1 contacts the upper end of the fixed frame 31, the lower end of the slide plate 35 is higher than the upper end of the lever 34.
[0033] By adopting the above technical solution, the slide plate 35 moves more stably in the fixed frame 31, the slide column 36 can slide on the fixed frame 31, and the lower end of the slide plate 35 will not hit the lever 34 when the lower end of the box 1 contacts the upper end of the fixed frame 31.
[0034] In this embodiment, by setting up the lifting component 3, screws are screwed through the mounting plate 32 into the ground to fix the fixed frame 31. The lever 34 moves the screw 33 to rotate in the fixed frame 31. The rotation of the screw 33 drives the slide plate 35 to rise and fall in the fixed frame 31. The rise and fall of the slide plate 35 pushes the box 1 to rise and fall through the sliding column 36. By setting up the lifting component 3, the box 1 can be adjusted to a suitable height according to the height of the staff, improving the practicality of the device.
[0035] In this utility model, the motor 22 is a previously disclosed technology, and the selected model is Z60-55ZY.
[0036] In this utility model, the second motor 27 is a previously disclosed technology, and the selected model is 50GASRZ.
[0037] The structure and working principle of the housing 1, electric slide rail 4, slide base 5, fixing frame 6 and ultrasonic detector 7 in this utility model have been disclosed in a stainless steel bar ultrasonic non-destructive testing device disclosed in Chinese patent application number 2023227163223. Its working principle is that the slide base 5 can move on the electric slide rail 4, and the movement of the slide base 5 drives the ultrasonic detector 7 to move through the fixing frame 6, so as to perform testing on the bar.
[0038] The working principle and usage process of this utility model: When using the ultrasonic non-destructive testing equipment for small-diameter bars, the device is installed in a suitable position. The slide 5 can move on the electric slide rail 4. The movement of the slide 5 drives the ultrasonic detector 7 to move through the fixing frame 6, which can perform testing on the bars. By setting the clamping assembly 2, the bar to be tested is placed between two discs 26. The motor 1 22 is turned on to drive the bidirectional lead screw 23 to rotate. The rotation of the bidirectional lead screw 23 drives the two moving plates 24 to move closer to each other. The upper end of the moving plate 24 moves in the slide groove 25. The movement of the moving plate 24 drives the upper vertical plate 21 to move. The two discs 26 clamp and fix the bar. The motor 27 is turned on to drive a rotating shaft 28 to rotate. The rotation of the rotating shaft 28 drives the bar to rotate. By setting the clamping assembly 2, the bar to be tested can be clamped and rotated, which facilitates the testing of different positions of the bar. By setting the mounting assembly 29, the size of the bar to be tested can be selected. A suitable disc 26 is used. The insert plate 292 at one end of the disc 26 is inserted into the slot 293 at one end of the rotating shaft 28. The fixing bolt 291 is inserted into the through hole 295 of the rotating shaft 28 and screwed into the fixing hole 294 of the insert plate 292 to achieve the effect of limiting and fixing the insert plate 292 and the disc 26. By setting the installation component 29, the disc 26 can be replaced according to the diameter of the bar to be tested in different batches, which facilitates the testing of bars of different diameters. By setting the lifting component 3, the screw is screwed into the ground through the installation plate 32 to achieve the effect of fixing the fixed frame 31. The lever 34 moves the screw 33 to rotate in the fixed frame 31. The rotation of the screw 33 drives the slide plate 35 to rise and fall in the fixed frame 31. The rise and fall of the slide plate 35 pushes the box 1 to rise and fall through the sliding column 36. By setting the lifting component 3, the box 1 can be adjusted to a suitable height according to the height of the staff, improving the practicality of the device.
[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An ultrasonic non-destructive testing device for small-diameter bars, comprising a housing (1), wherein an electric slide rail (4) is provided at the rear end of the housing (1), a slide block (5) slides on the electric slide rail (4), a fixing frame (6) is fixed at the upper end of the slide block (5), and an ultrasonic testing instrument (7) is installed at the other end of the fixing frame (6), characterized in that: A lifting assembly (3) is provided on the lower side of the box (1), and a clamping assembly (2) is provided on the upper end of the box (1).
2. The ultrasonic non-destructive testing equipment for small-diameter bars according to claim 1, characterized in that: The clamping assembly (2) includes a vertical plate (21), a first motor (22), a bidirectional lead screw (23), a moving plate (24), a slide (25), a disc (26), a second motor (27), a rotating shaft (28), and a mounting assembly (29). The first motor (22) is mounted on one end of the housing (1). A bidirectional lead screw (23) is installed at the output end of the first motor (22). The moving plate (24) is threaded onto both sides of the surface of the bidirectional lead screw (23). The upper end of the moving plate (24) is fixed with… The upper end of the vertical plate (21) and the box body (1) is provided with a sliding groove (25) corresponding to the movable plate (24). The upper side of one end of the two vertical plates (21) is rotatably connected to the rotating shaft (28). A disc (26) is installed at one end of the rotating shaft (28). A motor (27) is installed at the position corresponding to the rotating shaft (28) on the upper side of one end of the vertical plate (21). The output end of the motor (27) is fixedly connected to the rotating shaft (28). The disc (26) and the rotating shaft (28) are connected by the mounting assembly (29).
3. The ultrasonic non-destructive testing equipment for small-diameter bars according to claim 2, characterized in that: The mounting assembly (29) includes a fixing bolt (291), a insert plate (292), a slot (293), a fixing hole (294), and a through hole (295). The disc (26) is fixed with the insert plate (292) near the rotating shaft (28). The rotating shaft (28) has a slot (293) corresponding to the insert plate (292) at one end. The insert plate (292) and the rotating shaft (28) are connected by the fixing bolt (291). The insert plate (292) has a fixing hole (294) corresponding to the fixing bolt (291), and the rotating shaft (28) has a through hole (295) corresponding to the fixing bolt (291).
4. The ultrasonic non-destructive testing equipment for small-diameter bars according to claim 3, characterized in that: Bearing rotating seats are provided between the bidirectional lead screw (23) and the housing (1) and between the rotating shaft (28) and the vertical plate (21). The two moving plates (24) are threaded in opposite directions to the bidirectional lead screw (23).
5. The ultrasonic non-destructive testing equipment for small-diameter bars according to claim 1, characterized in that: The lifting assembly (3) includes a fixed frame (31), a mounting plate (32), a screw (33), a lever (34), a sliding plate (35), and a sliding column (36). The fixed frame (31) is provided on the lower side of the housing (1). The mounting plate (32) is fixed on the lower side of both ends of the fixed frame (31). The screw (33) is rotatably connected in the fixed frame (31). Several levers (34) are fixed on the lower side of the surface of the screw (33). The sliding plate (35) is threadedly connected to the surface of the screw (33). The sliding plate (35) is connected to the housing (1) through the sliding column (36).
6. The ultrasonic non-destructive testing equipment for small-diameter bars according to claim 5, characterized in that: The two ends of the slide plate (35) are in close contact with the inner wall of the fixed frame (31). The upper end of the fixed frame (31) has sliding holes on both sides corresponding to the sliding column (36). When the lower end of the box (1) contacts the upper end of the fixed frame (31), the lower end of the slide plate (35) is higher than the upper end of the lever (34).