Ultralow-temperature nodular iron casting detection device

Abstract

An ultralow-temperature nodular iron casting detection device relates to the technical field of iron casting processing and comprises a bottom plate, a rotating disc, fixing clamps, a supporting rod, a fixing plate and a clamping plate, the rotating disc is arranged on the upper end face of the bottom plate, a workpiece is placed on the rotating disc, a first bidirectional lead screw and the two symmetrically arranged fixing clamps are arranged above the rotating disc, and the two fixing clamps fix the workpiece. A longitudinally-arranged supporting rod is arranged on one side of the bottom plate, an adjusting lead screw and a fixing plate are arranged on the side, facing the bottom plate, of the supporting rod, the fixing plate moves up and down on the supporting rod through the adjusting lead screw, a second bidirectional lead screw and two symmetrically-arranged clamping plates are arranged on the fixing plate, and a probe of the ultrasonic detector is fixed between the two clamping plates; according to the utility model, by arranging the turntable, the workpiece can be conveniently rotated, and the ultrasonic probe can conveniently and comprehensively detect flaws of the workpiece; by arranging the fixing clamp, the workpiece can be conveniently fixed, and displacement of the workpiece during rotation is avoided; and the fixing plate capable of moving up and down is arranged on the supporting rod, so that the ultrasonic probe can conveniently carry out dyeing detection on the workpiece.

Description

A testing device for ultra-low temperature ductile iron castings Technical Field

[0001] This utility model relates to the field of cast iron processing technology, and in particular to a device for testing ultra-low temperature ductile iron castings. Background Technology

[0002] Ultra-low temperature high-toughness ductile iron possesses high strength, high toughness, and high fatigue resistance, making its application in high-speed train bogie axle boxes of great significance. To ensure the quality and safety of the castings, flaw detection is required. Ultrasonic flaw detection has the advantages of high sensitivity, accurate positioning, and convenient operation, and is widely used in the flaw detection process of castings. In the traditional flaw detection process, workers need to hold the ultrasonic probe and inspect the workpiece, which is inefficient. Furthermore, the flaw detection process requires workers to conduct a comprehensive inspection around the workpiece, resulting in a large workload and low timeliness. Summary of the Invention

[0003] To overcome the shortcomings of the prior art, this utility model discloses an ultra-low temperature ductile iron workpiece inspection device. This utility model achieves the purpose of conveniently performing flaw detection on ultra-low temperature ductile iron workpieces by setting a turntable and a support rod on a base plate, setting a fixing clamp on the turntable, setting a fixing plate on the support rod, and setting a clamping plate on the fixing plate.

[0004] To achieve the aforementioned objective, this utility model adopts the following technical solution:

[0005] A device for testing ultra-low temperature ductile iron castings includes a base plate, a turntable, a fixing clamp, a support rod, a fixing plate, and a clamping plate. The upper surface of the base plate is provided with a turntable, on which the workpiece is placed. Above the turntable are a first bidirectional lead screw and two symmetrically arranged fixing clamps. The two fixing clamps move laterally above the turntable via the first bidirectional lead screw, thus fixing the workpiece. A longitudinally arranged support rod is provided on one side of the base plate. An adjusting lead screw and a fixing plate are provided on the side of the support rod facing the base plate. The fixing plate moves up and down on the support rod via the adjusting lead screw. The fixing plate is provided with a second bidirectional lead screw and two symmetrically arranged clamping plates. The two clamping plates move laterally above the fixing plate via the second bidirectional lead screw. The probe of an ultrasonic detector is fixed between the two clamping plates.

[0006] The bottom surface of the base plate is provided with wheels, the top surface of the base plate is provided with a fixing groove, the turntable is set in the fixing groove, the side of the base plate is provided with a through hole communicating with the fixing groove, the bottom surface of the base plate is provided with a sleeve arranged horizontally on one side, the sleeve is provided with a support plate that is slidably connected, and the support rod is set at one end of the top surface of the support plate.

[0007] The lower end face of the turntable is provided with a pressure bearing coaxially arranged, and a rotating shaft is provided at the center of the lower end face of the turntable. The lower end of the rotating shaft passes through the base plate. The upper end face of the turntable is provided with a first connecting groove. A first bidirectional lead screw is arranged in the first connecting groove. One end of the first bidirectional lead screw is rotatably connected to the inner wall of one end of the first connecting groove, and the other end of the first bidirectional lead screw passes through the other end of the first connecting groove.

[0008] The fixing clamp includes a connecting plate, a housing, a locking block, and a spring. The connecting plate is longitudinally arranged above the turntable, and the lower end of the connecting plate is arranged in the first connecting groove and threadedly connected to the first bidirectional lead screw. The upper end of the connecting plate is provided with a housing. The openings of the housings of the two fixing clamps are arranged opposite each other. Locking blocks are distributed inside the housings, and each locking block is provided with a spring. One end of the spring is connected to the end face of the locking block, and the other end of the spring is connected to the inner wall of the housing.

[0009] A gearbox and a second motor are provided at the center of the lower end face of the base plate. The lower end of the rotating shaft is connected to the output end of the gearbox. A connecting shaft is provided on the output shaft of the second motor, and the end of the connecting shaft is connected to the input end of the gearbox.

[0010] The support rod has a longitudinally arranged sliding groove on the side facing the base plate. The adjusting screw is set in the sliding groove. The upper end of the support rod is equipped with a first motor. The output shaft of the first motor extends downward and is connected to the upper end of the adjusting screw. The adjusting screw is equipped with a threaded fixed ring. The fixed plate is connected to the side of the fixed ring.

[0011] The upper surface of the fixed plate is provided with a second connecting groove, and a second bidirectional lead screw is set in the second connecting groove. One end of the second bidirectional lead screw is rotatably connected to the inner wall of one end of the second connecting groove, and the other end of the second bidirectional lead screw passes through the second connecting groove and is provided with a knob. The lower end of the clamping plate is set in the second connecting groove and is threadedly connected to the second bidirectional lead screw.

[0012] The ultra-low temperature ductile iron casting testing device of this utility model is highly practical and very convenient to use. This utility model has a turntable to facilitate the rotation of the workpiece, which allows the ultrasonic probe to perform comprehensive flaw detection on the workpiece; a fixing clamp to fix the workpiece and prevent displacement during rotation; and a movable fixing plate on the support rod to facilitate the ultrasonic probe to detect staining on the workpiece. Attached Figure Description

[0013] Figure 1 is a three-dimensional structural diagram of this utility model;

[0014] Figure 2 is a three-dimensional structural diagram of this utility model;

[0015] Figure 3 is a cross-sectional view of the base plate of this utility model;

[0016] Figure 4 is an enlarged view of section A of this utility model;

[0017] Figure 5 is a cross-sectional view of the strut of this utility model;

[0018] In the diagram: 1. Base plate; 2. Wheel; 3. Fixing groove; 4. Turntable; 5. Perforation; 6. Support rod; 7. Slide groove; 8. First motor; 9. Fixing plate; 10. Clamping plate; 11. Knob; 12. First connecting groove; 13. Connecting plate; 14. Housing; 15. Locking block; 16. Gearbox; 17. Second motor; 18. Connecting shaft; 19. Sleeve; 20. Support plate; 21. Pressure bearing; 22. Rotating shaft; 23. First double-acting lead screw; 24. Spring; 25. Adjusting lead screw; 26. Fixing ring; 27. Second connecting groove; 28. Second double-acting lead screw. Detailed Implementation

[0019] The present invention will be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention.

[0020] Referring to Figures 1-5, an ultra-low temperature ductile iron casting testing device includes a base plate 1, a turntable 4, a fixing clamp, a support rod 6, a fixing plate 9, and a clamping plate 10. The turntable 4 is provided on the upper surface of the base plate 1, and the workpiece is placed on the turntable 4. A first bidirectional lead screw 23 and two symmetrically arranged fixing clamps are provided above the turntable 4. The two fixing clamps move laterally above the turntable 4 through the first bidirectional lead screw 23 to fix the workpiece. A longitudinally arranged support rod 6 is provided on one side of the base plate 1. An adjusting lead screw 25 and a fixing plate 9 are provided on the side of the support rod 6 facing the base plate 1. The fixing plate 9 moves up and down on the support rod 6 through the adjusting lead screw 25. A second bidirectional lead screw 28 and two symmetrically arranged clamping plates 10 are provided on the fixing plate 9. The two clamping plates 10 move laterally above the fixing plate 9 through the second bidirectional lead screw 28. The probe of the ultrasonic detector is fixed between the two clamping plates 10.

[0021] The bottom plate 1 has wheels 2 distributed on its lower end face, and a fixing groove 3 is provided on the upper end face of the bottom plate 1. The turntable 4 is set in the fixing groove 3. The side of the bottom plate 1 has a through hole 5 communicating with the fixing groove 3. The bottom plate 1 has a sleeve 19 arranged horizontally on one side. A support plate 20 is slidably connected inside the sleeve 19. A support rod 6 is set at one end of the upper end face of the support plate 20. The support rod 6 moves closer to or away from the workpiece through the support plate 20.

[0022] The lower end face of the turntable 4 is provided with a coaxial pressure bearing 21, and the center of the lower end face of the turntable 4 is provided with a rotating shaft 22. The lower end of the rotating shaft 22 passes through the base plate 1. The upper end face of the turntable 4 is provided with a first connecting groove 12. A first bidirectional lead screw 23 is provided in the first connecting groove 12. One end of the first bidirectional lead screw 23 is rotatably connected to the inner wall of one end of the first connecting groove 12, and the other end of the first bidirectional lead screw 23 passes through the other end of the first connecting groove 12. The tool is tightened at the end of the first bidirectional lead screw 23 through the through hole 5. Rotating the tool causes the first bidirectional lead screw 23 to rotate, so that the two fixed clamps move closer or further apart, which facilitates the fixation of the workpiece.

[0023] The fixing clamp includes a connecting plate 13, a housing 14, a locking block 15, and a spring 24. The connecting plate 13 is longitudinally arranged above the turntable 4. The lower end of the connecting plate 13 is located in the first connecting groove 12 and is threadedly connected to the first bidirectional lead screw 23. The upper end of the connecting plate 13 is provided with a housing 14. The openings of the housings 14 of the two fixing clamps are arranged opposite each other. Locking blocks 15 are distributed inside the housings 14. Each locking block 15 is provided with a spring 24. One end of the spring 24 is connected to the end face of the locking block 15, and the other end of the spring 24 is connected to the inner wall of the housing 14. The locking block 15 is pressed onto the workpiece by the spring 24 to adapt to the shape design of the workpiece.

[0024] The bottom plate 1 has a gearbox 16 and a second motor 17 at the center of its lower end face. The lower end of the rotating shaft 22 is connected to the output end of the gearbox 16. The output shaft of the second motor 17 is provided with a connecting shaft 18. The end of the connecting shaft 18 is connected to the input end of the gearbox 16. The second motor 17 drives the gearbox 16 to rotate, and the gearbox 16 drives the upper turntable 4 to rotate the workpiece.

[0025] The support rod 6 has a longitudinally arranged sliding groove 7 on the side facing the base plate 1. The adjusting screw 25 is set in the sliding groove 7. The upper end of the support rod 6 is provided with a first motor 8. The output shaft of the first motor 8 extends downward and connects to the upper end of the adjusting screw 25. The adjusting screw 25 is provided with a threaded fixed ring 26. The fixed plate 9 is connected to the side of the fixed ring 26. The first motor 8 drives the adjusting screw 25 to rotate, so that the fixed ring 26 drives the fixed plate 9 to move up and down along the adjusting screw 25, which facilitates the movement of the ultrasonic detector probe.

[0026] The upper surface of the fixing plate 9 is provided with a second connecting groove 27. The second bidirectional lead screw 28 is set in the second connecting groove 27. One end of the second bidirectional lead screw 28 is rotatably connected to the inner wall of one end of the second connecting groove 27. The other end of the second bidirectional lead screw 28 passes through the second connecting groove 27 and is provided with a knob 11. The lower end of the clamping plate 10 is set in the second connecting groove 27 and is threadedly connected to the second bidirectional lead screw 28. Rotating the knob 11 causes the second bidirectional lead screw 28 to rotate, so that the two clamping plates 10 move closer or further apart, which facilitates the fixation of the ultrasonic detector probe.

[0027] In the embodiment of the ultra-low temperature ductile iron casting inspection device, the workpiece is hoisted and placed above the turntable 4. The tool is clamped to the end of the first bidirectional lead screw 23 through the through hole 5. Rotating the tool causes the first bidirectional lead screw 23 to rotate, causing the two fixing clamps to move closer or further apart, facilitating the fixation of the workpiece. The clamping block 15 is pressed onto the workpiece by the spring 24 to adapt to the workpiece's shape design. Then, the support rod 6 is moved closer or further away from the workpiece through the support plate 20, and the probe of the ultrasonic detector is placed between the two clamping plates 10. Rotating the knob 11 causes the second bidirectional lead screw 28 to rotate, causing the two clamping plates 10 to move closer or further apart. The two clamps 10 are positioned to facilitate fixing the ultrasonic probe. Rotating the knob 11 causes the second bidirectional screw 28 to rotate, making the two clamps 10 move closer or further apart, thus facilitating the fixing of the ultrasonic probe. During flaw detection, the support rod 6 is pushed towards the workpiece, placing the ultrasonic probe against the workpiece surface. The second motor 17 drives the gearbox 16 to rotate, which in turn drives the upper turntable 4 to rotate the workpiece. The first motor 8 drives the adjusting screw 25 to rotate, causing the fixing ring 26 to move the fixing plate 9 up and down along the adjusting screw 25, facilitating the movement of the ultrasonic probe for flaw detection.

[0028] The parts of this utility model not described in detail are prior art. Although this utility model has been specifically shown and introduced in conjunction with preferred embodiments, there are many methods and approaches to implement this technical solution. The above description is only a preferred embodiment of this utility model. However, those skilled in the art should understand that various changes in form and detail can be made to this utility model without departing from the spirit and scope of this utility model as defined by the appended claims, and all such changes shall be within the protection scope of this utility model.

Claims

1. A device for testing ultra-low temperature ductile iron castings, comprising a base plate (1), a turntable (4), a fixing clamp, a support rod (6), a fixing plate (9), and a clamping plate (10), wherein the upper surface of the base plate (1) is provided with the turntable (4), and the workpiece is placed on the turntable (4), characterized in that: A first bidirectional lead screw (23) and two symmetrically arranged fixed clamps are provided above the turntable (4). The two fixed clamps move laterally above the turntable (4) through the first bidirectional lead screw (23) to fix the workpiece. A longitudinally arranged support rod (6) is provided on one side of the base plate (1). An adjusting lead screw (25) and a fixed plate (9) are provided on the side of the support rod (6) facing the base plate (1). The fixed plate (9) moves up and down on the support rod (6) through the adjusting lead screw (25). A second bidirectional lead screw (28) and two symmetrically arranged clamps (10) are provided on the fixed plate (9). The two clamps (10) move laterally above the fixed plate (9) through the second bidirectional lead screw (28). The probe of the ultrasonic detector is fixed between the two clamps (10).

2. The apparatus for detecting an ultra-low temperature ductile cast iron piece according to claim 1, characterized in that: The bottom plate (1) has wheels (2) distributed on its lower end face, and a fixing groove (3) is provided on the upper end face of the bottom plate (1). A turntable (4) is set in the fixing groove (3). A through hole (5) communicating with the fixing groove (3) is provided on the side of the bottom plate (1). A sleeve (19) is provided on one side of the bottom plate (1). A support plate (20) is provided in the sleeve (19) and slidably connected. A strut (6) is set at one end of the upper end face of the support plate (20).

3. The apparatus for detecting an ultra-low temperature ductile cast iron piece according to claim 2, characterized in that: The turntable (4) has a pressure bearing (21) coaxially arranged on its lower end face. The turntable (4) has a rotating shaft (22) at the center of its lower end face. The lower end of the rotating shaft (22) passes through the base plate (1). The turntable (4) has a first connecting groove (12) on its upper end face. A first bidirectional screw (23) is set in the first connecting groove (12). One end of the first bidirectional screw (23) is rotatably connected to the inner wall of one end of the first connecting groove (12). The other end of the first bidirectional screw (23) passes through the other end of the first connecting groove (12).

4. The apparatus for detecting an ultra-low temperature ductile cast iron piece according to claim 1, characterized in that: The fixing clamp includes a connecting plate (13), a housing (14), a locking block (15), and a spring (24). The connecting plate (13) is longitudinally arranged above the turntable (4). The lower end of the connecting plate (13) is located in the first connecting groove (12) and is threadedly connected to the first bidirectional lead screw (23). The upper end of the connecting plate (13) is provided with a housing (14). The openings of the housings (14) of the two fixing clamps are arranged opposite each other. The locking blocks (15) are distributed inside the housing (14). Each locking block (15) is provided with a spring (24). One end of the spring (24) is connected to the end face of the locking block (15), and the other end of the spring (24) is connected to the inner wall of the housing (14).

5. The apparatus for detecting an ultra-low temperature ductile cast iron piece according to claim 2, characterized in that: The bottom plate (1) has a gearbox (16) and a second motor (17) at the center of its lower end face. The lower end of the rotating shaft (22) is connected to the output end of the gearbox (16). The output shaft of the second motor (17) has a connecting shaft (18), and the end of the connecting shaft (18) is connected to the input end of the gearbox (16).

6. The apparatus for detecting an ultra-low temperature ductile cast iron piece according to claim 2, characterized in that: The support rod (6) has a longitudinally arranged slide groove (7) on the side facing the base plate (1). The adjusting screw (25) is arranged in the slide groove (7). The upper end of the support rod (6) is provided with a first motor (8). The output shaft of the first motor (8) extends downward and connects to the upper end of the adjusting screw (25). The adjusting screw (25) is provided with a threaded fixed ring (26). The fixed plate (9) is connected to the side of the fixed ring (26).

7. The apparatus for detecting an ultra-low temperature ductile cast iron piece according to claim 6, characterized in that: The upper surface of the fixed plate (9) is provided with a second connecting groove (27), and a second bidirectional screw (28) is set in the second connecting groove (27). One end of the second bidirectional screw (28) is rotatably connected to the inner wall of one end of the second connecting groove (27), and the other end of the second bidirectional screw (28) passes through the second connecting groove (27) and is provided with a knob (11). The lower end of the clamping plate (10) is set in the second connecting groove (27) and is threadedly connected to the second bidirectional screw (28).

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