Rotary clamp for flaw detection

Abstract

The utility model discloses a rotary clamp for flaw detection. The rotary clamp comprises a rotary table bracket, a fixing device, a supporting device and a driving device, the fixing devices and the supporting devices are evenly distributed on the rotary table support, and the positions of the fixing devices and the supporting devices can be adjusted on the rotary table support. The supporting device comprises a supporting rod, and the position of the supporting rod can be adjusted in the vertical direction of the rotary table support. The top end of the supporting rod is connected with a supporting pad through a universal joint, and the supporting pad can support a workpiece. The driving device is arranged at the bottom of the turntable bracket and drives the turntable bracket to rotate; according to the device, the to-be-detected component can be completely fixed through the plurality of uniformly distributed fixing devices; by arranging the multiple supporting devices, the rotary table can automatically adjust the angle according to the radian of the surface of a complex curved surface component or a dish-shaped component and other rotary body components to support the component, the rotary table is completely attached to the surface of the component, and when the component rotates, the rotary table can stably support and clamp the component to be detected; therefore, the ultrasonic flaw detection equipment can realize comprehensive flaw detection on the component.

Description

Technical Field

[0001] The utility model relates to the technical field of flaw detection, in particular to a rotary clamp for flaw detection. Background Art

[0002] To ensure the reliability and safety of components, it is crucial to detect defects such as cracks and bubbles. A common method during ultrasonic testing is to place the component in a water tank and use high-frequency ultrasonic echoes to image the fine structure or defects inside the material.

[0003] However, the current fixtures used for ultrasonic flaw detection have many shortcomings. The support points and clamping points of the existing fixtures are relatively fixed. When the fixtures are clamping complex curved components or rotating components such as disc-shaped components, the fixtures cannot adapt to the shape of the components to be tested, resulting in the fixtures being unable to stably support and clamp the components to be tested. The horizontality and stability of the components to be tested on the fixtures are not ideal, which affects subsequent inspections and cannot meet the needs of industrial flaw detection. Utility Model Content

[0004] The utility model provides a rotary clamp for flaw detection, which overcomes the technical problem that the supporting points and clamping points of the existing clamps are relatively fixed, and the surfaces of complex curved surface components or rotating body components cannot be stably supported and clamped, and thus comprehensive flaw detection of the components cannot be achieved.

[0005] In order to achieve the above purpose, the technical solution of the utility model is:

[0006] A rotary fixture for flaw detection, comprising: a turntable bracket, a fixing device, a supporting device and a driving device;

[0007] The plurality of fixing devices are evenly distributed on the turntable bracket, and the positions of the fixing devices can be adjusted on the turntable bracket; the plurality of supporting devices are evenly distributed on the turntable bracket, and the positions of the supporting devices can be adjusted on the turntable bracket;

[0008] The support device includes a support rod, the support rod can be adjusted in the vertical direction of the turntable bracket; the top end of the support rod is connected to a support pad through a universal joint, and the support pad can support the workpiece;

[0009] The driving device is arranged at the bottom of the turntable bracket, and the turntable bracket is driven to rotate by the driving device.

[0010] Furthermore, the fixing device includes: a fixing seat and a push rod;

[0011] The fixing seat is provided with a waist-shaped hole, and the distance between the fixing seat and the center of the turntable bracket is adjusted through the waist-shaped hole and the bolt passing through the waist-shaped hole; the push rod is provided on the fixing seat and is connected to the fixing seat through a thread.

[0012] Furthermore, the surface of the support rod is provided with threads, and is connected to the turntable bracket through threads.

[0013] Furthermore, the fixing device and the supporting device are spaced apart.

[0014] Furthermore, the driving device includes a driving motor, a transmission shaft and a reversing mechanism;

[0015] One end of the transmission shaft is connected to the output shaft of the drive motor, and the other end of the transmission shaft is connected to the input end of the reversing mechanism; the turntable bracket is provided at the output end of the reversing mechanism and is connected to the reversing mechanism;

[0016] The axis of the output end of the driving motor and the axis of the input end of the reversing mechanism are perpendicular to each other.

[0017] Furthermore, the reversing mechanism is a right-angle reducer.

[0018] Furthermore, it also includes a water tank, and the turntable bracket is placed in the water tank.

[0019] Furthermore, it also includes a base;

[0020] A positioning hole is provided at the bottom of the water sink, the base is provided in the positioning hole of the water sink, the reversing mechanism is provided on the base, the drive motor is provided outside the water sink, one end of the transmission shaft is provided outside the water sink and connected to the drive motor, and the other end of the transmission shaft passes through the side wall of the water sink and is connected to the reversing mechanism.

[0021] Furthermore, the turntable bracket is a cross-shaped structure.

[0022] Beneficial effects: The utility model provides a rotary clamp for flaw detection, which completely fixes the component to be detected by arranging multiple evenly distributed fixing devices on the turntable bracket; by arranging a supporting device on the turntable bracket, the turntable can automatically adjust the angle according to the curvature of the surface of a complex curved component or a rotating component such as a dish-shaped component to support the component, and completely fit with the surface of the component, which is convenient for flaw detection. When the component rotates, it can stably support and clamp the component to be detected, so that the ultrasonic flaw detection equipment can achieve comprehensive flaw detection of the component. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0024] Figure 1 This is a structural schematic diagram of a rotary fixture clamping device for flaw detection disclosed in the utility model;

[0025] Figure 2 This is a schematic structural diagram of the support device disclosed in the present utility model;

[0026] Figure 3 This is a schematic structural diagram of the fixing device disclosed in the present utility model;

[0027] Figure 4 This is a side view of a rotary fixture clamping device for flaw detection disclosed in the utility model;

[0028] Figure 5 This is a cross-sectional view of the overall structure of a rotary fixture for flaw detection disclosed in the utility model after clamping a workpiece;

[0029] Figure 6 The utility model is a top view of a rotary fixture for flaw detection disclosed in the present invention.

[0030] In the figure, 1. water tank; 2. base; 3. turntable bracket; 4. fixing device; 5. supporting device; 6. driving device; 7. dish-shaped member; 41. fixing seat; 42. push rod; 51. support rod; 52. universal joint; 53. support pad; 61. driving motor; 62. transmission shaft; 63. reversing mechanism. DETAILED DESCRIPTION

[0031] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0032] This embodiment provides a rotary fixture for flaw detection, such as Figure 1 As shown, it includes: a turntable bracket 3, a fixing device 4, a supporting device 5 and a driving device 6;

[0033] The plurality of fixing devices 4 are evenly distributed on the turntable bracket 3, and the fixing devices 4 can be adjusted in position on the turntable bracket 3; the plurality of supporting devices 5 are evenly distributed on the turntable bracket 3, and the supporting devices 5 can be adjusted in position on the turntable bracket 3;

[0034] The support device 5 includes a support rod 51, which can be adjusted in the vertical direction along the turntable bracket 3; the top of the support rod 51 is connected to a support pad 53 through a universal joint 52, and the support pad 53 can support the workpiece;

[0035] The driving device 6 is disposed at the bottom of the turntable bracket 3 , and the turntable bracket 3 is driven to rotate by the driving device 6 .

[0036] Specifically, if Figure 5 As shown, the workpiece in this embodiment is a disc-shaped component 7, and the disc-shaped component 7 is a disc-shaped glass. The device includes a turntable bracket, multiple fixing devices, multiple supporting devices and a driving device. The driving device is arranged on the side of the turntable bracket, and the turntable bracket is driven to rotate by the driving device; the fixing devices are evenly arranged on the periphery of the turntable bracket, the number is at least 3, and the number of the fixing devices in this embodiment is 4, which are divided into two groups, and each group has two fixing devices arranged oppositely. The fixing devices can adjust the distance from the center of the turntable bracket according to the size of the disc-shaped component; the supporting devices are also evenly arranged on the periphery of the turntable bracket, the number is at least 3, and the number is 4 in this embodiment, which are divided into two groups, and each group has two supporting devices arranged oppositely, as shown in FIG. Figure 2 As shown, the support device includes a support rod with a threaded surface, which is connected to the turntable bracket through a threaded connection, and the height of the support rod can be adjusted along the vertical direction of the turntable bracket according to the height of the workpiece; a universal joint is provided on the support rod, and a support pad is provided on the universal joint, and the angle of the support pad can be adjusted by the universal joint to match the curvature of the surface of the dish-shaped component;

[0037] This device completely fixes the component to be inspected by arranging multiple fixing devices; by arranging a supporting device on the turntable bracket, the turntable can automatically adjust the angle according to the curvature of the surface of complex curved components or rotating components such as dish-shaped components to support the dish-shaped components, and completely fit with the surface of the component to facilitate flaw detection. When the component rotates, the turntable can stably support and clamp the component to be inspected, so as to cooperate with the ultrasonic flaw detection equipment to realize comprehensive flaw detection of the component.

[0038] In a specific embodiment, Figure 3 As shown, the fixing device 4 includes: a fixing seat 41 and a push rod 42;

[0039] The fixing seat 41 is provided with a waist-shaped hole, and the distance between the fixing seat 41 and the center of the turntable bracket 3 is adjusted through the waist-shaped hole and the bolt passing through the waist-shaped hole; the push rod 42 is provided on the fixing seat 41 and is connected to the fixing seat 41 through threads.

[0040] Specifically, a waist-shaped hole is provided on the fixing seat, and a screw hole is provided at the connection between the turntable bracket and the fixing seat. The bolt is passed through the waist-shaped hole and the screw hole at the same time to adjust the position of the fixing seat, and the fixing seat can be adjusted close to or away from the center of the turntable bracket according to the size of the component to be detected; a screw hole is also provided on the top of the fixing seat, and a thread is provided on the push rod. The push rod passes through the screw hole and is connected to the fixing seat. After the component to be detected is placed on the turntable bracket, the component to be detected is clamped by adjusting the distance between the push rod and the center of the turntable; the fixing seat is set, and the position can be adjusted according to the size of the component to be detected to ensure that the component to be detected is clamped as a whole. The push rod is set on the fixing seat to clamp the component to be detected to ensure that the component to be detected is stably clamped.

[0041] In a specific embodiment, Figure 1 As shown, the fixing device 4 and the supporting device 5 are spaced apart, and the turntable bracket is a cross-shaped structure.

[0042] The turntable bracket has a cross-shaped structure, and the fixing devices are respectively arranged at the four top ends of the turntable bracket away from the center. The supporting device is arranged between the two fixing devices. The fixing device and the supporting device are arranged at intervals, which can maintain the balance of the component to be detected on the turntable bracket, prevent the component to be detected from tilting, and avoid damage to the component to be detected. Setting the turntable bracket to a cross-shaped structure can save materials while maintaining the stability of the component to be detected.

[0043] In a specific embodiment, Figure 4 As shown, the driving device 6 includes a driving motor 61, a transmission shaft 62 and a reversing mechanism 63; the reversing mechanism 63 is a right-angle reducer;

[0044] One end of the transmission shaft 62 is connected to the output shaft of the drive motor 61, and the other end of the transmission shaft 62 is connected to the input end of the reversing mechanism 63; the turntable bracket 3 is provided at the output end of the reversing mechanism 63 and is connected to the reversing mechanism 63;

[0045] The axis of the output end of the driving motor 61 and the axis of the input end of the reversing mechanism 63 are perpendicular to each other.

[0046] Specifically, the driving motor is arranged on the side of the turntable bracket, and the right-angle reducer is arranged at the bottom of the turntable bracket. The driving motor and the right-angle reducer are connected through a transmission shaft. One end of the transmission shaft is connected to the driving end of the driving motor through a coupling, and the other end is connected to the input end of the right-angle reducer through a coupling; the driving device drives the transmission shaft to rotate, and then drives the right-angle reducer to drive the turntable bracket to rotate; by setting the right-angle reducer, the driving motor can be arranged on the side of the water tank, which is convenient for the installation and maintenance of the driving motor. The right-angle reducer can be set to convert the horizontal rotation into vertical rotation, thereby achieving the effect of rotating the turntable bracket.

[0047] In a specific embodiment, Figure 5 and Figure 6 As shown, it also includes a sink 1 and a base 2;

[0048] The turntable bracket 3 is placed in the water tank 1, a positioning hole is provided at the bottom of the water tank 1, the base 2 is provided in the positioning hole of the water tank 1, the reversing mechanism 63 is provided on the base 2, the drive motor 61 is provided outside the water tank 1, one end of the transmission shaft 62 is provided outside the water tank and connected to the drive motor 61, and the other end of the transmission shaft 62 passes through the side wall of the water tank 1 and is connected to the reversing mechanism 63.

[0049] Specifically, a positioning hole is provided in the center of the sink, and a base is positioned within the positioning hole, matching the size of the hole to seal the sink. The drive motor is located outside the sink, and a through-hole is provided on the side of the sink facing the drive motor. The drive shaft passes through the through-hole and connects to the right-angle reducer on the base. The positioning hole in this device ensures that the turntable bracket is positioned in the center of the sink, facilitating testing. The base supports the turntable bracket and the right-angle reducer, while also sealing the bottom of the sink to prevent water overflow.

[0050] The working process of this device is as follows:

[0051] The inspector places the disc-shaped component to be inspected on the support device of the turntable bracket and adjusts the disc-shaped component so that the edges of the disc-shaped component are at the same level. Figure 5 As shown; the universal joint enables the support pad to adjust its angle according to the curvature of the dish-shaped component; the distance between the fixing seat and the center of the turntable bracket is adjusted according to the shape and size of the dish-shaped component to clamp the dish-shaped component and keep it stationary, and the push rod is adjusted to clamp the dish-shaped component to ensure that the dish-shaped component is in the center position of the turntable bracket; the drive motor is started, and the transmission shaft connected to the drive motor drives the right-angle reducer to rotate, thereby driving the turntable bracket and the dish-shaped component on the turntable bracket to rotate, so that the ultrasonic flaw detection equipment can realize comprehensive flaw detection of complex curved surface components and rotating components such as dish-shaped components, facilitate detection, reduce detection blind spots, ensure that the turntable can stably clamp the dish-shaped component, and avoid damage caused by tilting or throwing out of the dish-shaped component.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A rotary fixture for flaw detection, characterized in that: include: Turntable bracket (3), fixing device (4), supporting device (5) and driving device (6); A plurality of the fixing devices (4) are evenly distributed on the turntable bracket (3), and the positions of the fixing devices (4) can be adjusted on the turntable bracket (3); a plurality of the supporting devices (5) are evenly distributed on the turntable bracket (3), and the positions of the supporting devices (5) can be adjusted on the turntable bracket (3); The support device (5) comprises a support rod (51), wherein the support rod (51) can adjust its position along the vertical direction of the turntable bracket (3); the top end of the support rod (51) is connected to a support pad (53) via a universal joint (52), and the support pad (53) can support a workpiece; The driving device (6) is arranged at the bottom of the turntable bracket (3), and the turntable bracket (3) is driven to rotate by the driving device (6).

2. A rotary fixture for flaw detection according to claim 1, characterized in that: The fixing device (4) comprises: a fixing seat (41) and a push rod (42); The fixing seat (41) is provided with a waist-shaped hole, and the distance between the fixing seat (41) and the center of the turntable bracket (3) is adjusted through the waist-shaped hole and a bolt passing through the waist-shaped hole; the push rod (42) is provided on the fixing seat (41) and is connected to the fixing seat (41) through a threaded connection.

3. The rotary fixture for flaw detection according to claim 1, characterized in that: The support rod (51) is provided with a thread on its surface and is connected to the turntable bracket (3) via the thread.

4. The rotary fixture for flaw detection according to claim 1, characterized in that: The fixing device (4) and the supporting device (5) are spaced apart.

5. The rotary fixture for flaw detection according to claim 1, characterized in that: The driving device (6) includes a driving motor (61), a transmission shaft (62) and a reversing mechanism (63); One end of the transmission shaft (62) is connected to the output shaft of the drive motor (61), and the other end of the transmission shaft (62) is connected to the input end of the reversing mechanism (63); the turntable bracket (3) is arranged at the output end of the reversing mechanism (63) and is connected to the reversing mechanism (63); The axis of the output end of the driving motor (61) and the axis of the input end of the reversing mechanism (63) are perpendicular to each other.

6. The rotary fixture for flaw detection according to claim 5, characterized in that: The reversing mechanism (63) is a right-angle reducer.

7. The rotary fixture for flaw detection according to claim 5, characterized in that: It also includes a water tank (1), and the turntable bracket (3) is placed in the water tank (1).

8. The rotary fixture for flaw detection according to claim 7, characterized in that: Also includes a base (2); A positioning hole is provided at the bottom of the water tank (1), the base (2) is arranged in the positioning hole of the water tank (1), the reversing mechanism (63) is arranged on the base (2), the driving motor (61) is arranged outside the water tank (1), one end of the transmission shaft (62) is arranged outside the water tank and is connected to the driving motor (61), and the other end of the transmission shaft (62) passes through the side wall of the water tank (1) and is connected to the reversing mechanism (63).

9. The rotary fixture for flaw detection according to claim 1, characterized in that: The turntable bracket (3) is a cross-shaped structure.

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