Casting machining surface defect size inspection tool

Abstract

The utility model relates to the technical field of casting inspection, and discloses a casting processing surface defect size inspection tool which comprises a working table, a rotating assembly and a detection assembly which are arranged above the working table, the rotating assembly comprises a supporting frame fixedly connected to one side of the top of the workbench, one end of the supporting frame is rotationally connected with a transmission rod, one end of the transmission rod is rotationally connected with the inner wall of one baffle, and one side of the inner wall of the other baffle is fixedly connected with an electric telescopic rod. The device achieves the effect of improving the accuracy of an inspection result, drives a connecting ring and a transmission rod to slowly and intermittently rotate through the mutual cooperation of a driving wheel, a driving groove and a driven wheel, and then drives a clamping disc to rotate through the transmission rod, thereby driving a casting to slowly and intermittently rotate, and solving the problems that the casting continuously and slowly rotates, and the detection precision is high. And the accuracy of an inspection result is difficult to effectively improve.

Description

Technical Field

[0001] The utility model relates to the technical field of casting inspection, in particular to a tool for inspecting the size of defects on the surface of a casting. Background Art

[0002] As industrial products become increasingly lightweight, aluminum alloy castings are widely used in industries such as automotive and aerospace. However, lightweighting presupposes that the castings meet certain mechanical and performance requirements. The density of the casting's internal structure and the size of surface defects during machining are key factors in evaluating mechanical properties. To determine whether a casting meets these performance requirements, surface defects must be assessed.

[0003] After searching, the Chinese patent with publication number CN221056400U discloses a tool for inspecting the size of surface defects in casting processing, including a base and a support column, the upper end of the base is fixedly connected to the support column, one side of the support column is fixedly connected to a motor, the motor is connected to a second clamping assembly through an output shaft, an adjustment assembly is installed on the upper end of the base, the adjustment assembly is rotatably installed with a first clamping assembly through a movable rod, the upper end of the base is fixedly connected to a limiter, an optical axis guide rail is fixedly installed in the limiter, a support frame is movably connected to the optical axis guide rail, one end of the support frame is fixedly connected to a detection head, the adjustment assembly includes a screw rod, the screw rod is connected to a handle through an output shaft, and the screw rod is connected to a movable rod through a thread.

[0004] The device not only completes the precise inspection of castings, but also expands the scope of inspection, improves work efficiency and reduces the waste of resources.

[0005] However, the device still has the following problems. The device uses a detection head to emit ultrasonic waves to detect surface defects of castings, and then uses a motor to drive the clamping assembly and the casting to slowly rotate, so as to increase the inspection range. In actual use, the propagation path and reflection characteristics of ultrasonic waves are closely related to factors such as the shape and material of the object being inspected. If the object being inspected rotates during the inspection process, the propagation path of the ultrasonic signal may change. Therefore, the casting continues to rotate slowly, making it difficult to effectively improve the accuracy of the inspection results. Utility Model Content

[0006] (1) Technical problems solved

[0007] In view of the shortcomings of the existing technology, the utility model provides a tool for inspecting the size of defects on the surface of castings, which solves the problem that the castings continue to rotate slowly and it is difficult to effectively improve the accuracy of the inspection results.

[0008] (2) Technical solution

[0009] To achieve the above-mentioned object, the present invention provides the following technical solution: a tool for inspecting the size of surface defects of a casting, comprising a workbench, both ends of which are fixedly connected to baffles, and a rotating assembly and a detection assembly arranged above the workbench;

[0010] The rotating assembly includes a support frame fixedly connected to one side of the top of the workbench, one end of the support frame is rotatably connected to a transmission rod, and one end of the transmission rod is rotatably connected to the inner wall of one of the baffles, one side of the inner wall of the other baffle is fixedly connected to an electric telescopic rod, the extended end of the electric telescopic rod is rotatably connected to a connecting block, one end of the transmission rod and one end of the connecting block are fixedly connected to a clamping disk, one end of the outer peripheral wall of the transmission rod is fixedly connected to a connecting ring, the outer peripheral wall of the connecting ring is fixedly connected to a plurality of evenly distributed driven wheels, the inner wall of one of the baffles The wall is rotatably connected to a rotating shaft near the connecting ring, one end of the outer peripheral wall of the rotating shaft is fixedly connected to a driving wheel, and the outer peripheral wall of the driving wheel is provided with a driving groove adapted to the driven wheel. The top of the workbench is fixedly connected to a driving motor near the support frame, and the top of the workbench is fixedly connected to a fixing frame near the driving motor. The bottom end of the fixing frame is rotatably connected to a worm, and the bottom end of the worm is fixedly connected to the output shaft of the driving motor. The other end of the outer peripheral wall of the rotating shaft is fixedly connected to a worm wheel meshing with the worm, and the lead angle between the worm wheel and the worm is smaller than the friction angle.

[0011] Preferably, both sides of the inner circumferential wall of the clamping disk are slidably connected with guide rods, one end of each guide rod is fixedly connected with a clamping block, and a spring is sleeved between the outer circumferential wall of the guide rod and the clamping block.

[0012] Preferably, the top end of the outer peripheral wall of the clamping disk is fixedly connected to a fixing rod, the outer peripheral wall of the fixing rod is slidably connected to a sliding ring, and the other end of each guide rod and one end of the sliding ring are rotatably connected to a pair of connecting curved rods through a rotating shaft.

[0013] Preferably, the detection assembly includes a guide rail fixedly connected to the top of the workbench near the baffle, and the inner wall of the guide rail is slidably connected to a slider.

[0014] Preferably, the top end of the slider is fixedly connected to a support rod, the top end of the support rod is fixedly connected to a detection head, and a pair of limit blocks are clamped on the inner wall of the guide rail near the slider.

[0015] Preferably, a support bracket is fixedly connected to the top of the workbench near the electric telescopic rod, and the top end of the support bracket is adapted to the extended end of the electric telescopic rod.

[0016] (3) Beneficial effects

[0017] 1. This casting surface defect size inspection tool drives the worm to rotate through a driving motor, and the cooperation between the worm and the worm wheel drives the rotating shaft to rotate slowly. Then, the rotating shaft drives the driving wheel to rotate. Through the cooperation between the driving wheel, the driving slot and the driven wheel, the connecting ring and the transmission rod are driven to rotate slowly and intermittently. Then, the transmission rod drives the clamping disk to rotate, thereby driving the casting to rotate slowly and intermittently, so as to improve the accuracy of the inspection results.

[0018] 2. This tool for inspecting the size of surface defects in castings is simple to operate and ingeniously designed. Through the cooperation between the sliding ring and the connecting curved rod, a pair of guide rods are driven away from each other, so that a pair of clamping blocks are moved away from each other. Then, the casting is placed between the pair of clamping blocks, the sliding ring is loosened, and the guide rods and the clamping blocks are reset by the spring, so that the pair of clamping blocks contact and clamp the casting, thereby improving the convenience of using the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model from the first perspective;

[0020] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model from a second viewing angle;

[0021] Figure 3 This is a schematic diagram of a half-cutaway three-dimensional structure of some components of the present invention;

[0022] Figure 4 It is a schematic diagram of the three-dimensional structure of part of the clamping assembly of the utility model.

[0023] In the figure: 1. workbench; 2. baffle; 3. support bracket; 4. electric telescopic rod; 5. connecting block; 6. clamping plate; 7. guide rail; 8. slider; 9. limit block; 10. support rod; 11. detection head; 12. transmission rod; 13. connecting ring; 14. driven wheel; 15. rotating shaft; 16. driving wheel; 17. driving groove; 18. support frame; 19. driving motor; 20. fixing frame; 21. worm; 22. worm wheel; 23. guide rod; 24. clamping block; 25. spring; 26. fixing rod; 27. sliding ring; 28. connecting curved rod. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions 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 are within the scope of protection of the present invention.

[0025] Example: Figure 1As shown, a tool for inspecting the size of surface defects in casting processing includes a workbench 1, both ends of which are fixedly connected to baffles 2 by welding, wherein the workbench 1 and the baffles 2 are both made of aluminum alloy material to improve the overall structural strength of the device, and also includes a rotating component and a detection component arranged above the workbench 1.

[0026] like Figure 2 and Figure 3 As shown, in a certain embodiment, in order to improve the accuracy of the inspection results, the rotating assembly includes a support frame 18 fixedly connected to one side of the top of the workbench 1 by welding, one end of the support frame 18 is rotatably connected to the transmission rod 12 through a bearing, and one end of the transmission rod 12 is rotatably connected to the inner wall of one of the baffles 2, and one side of the inner wall of the other baffle 2 is fixedly connected to the electric telescopic rod 4, the top of the workbench 1 is fixedly connected to the support bracket 3 near the electric telescopic rod 4, and the top of the support bracket 3 is adapted to the extended end of the electric telescopic rod 4, wherein the support bracket 3 plays a role in improving the movement stability of the electric telescopic rod 4, the extended end of the electric telescopic rod 4 is rotatably connected to the connecting block 5, wherein the electric telescopic rod 4 plays a role in driving the connecting block 5 to move, one end of the transmission rod 12 and one end of the connecting block 5 are fixedly connected to the clamping plate 6, one end of the outer peripheral wall of the transmission rod 12 is fixedly connected to the connecting ring 13, and the outer peripheral wall of the connecting ring 13 is fixedly connected to a plurality of evenly distributed driven wheels 14, and the inner wall of one of the baffles 2 is rotatably connected to the connecting ring 13 A rotating shaft 15 is connected, and one end of the outer peripheral wall of the rotating shaft 15 is fixedly connected to a driving wheel 16. The outer peripheral wall of the driving wheel 16 is provided with a driving groove 17 adapted to the driven wheel 14. Through the mutual cooperation between the driving wheel 16, the driving groove 17 and the driven wheel 14, the rotating shaft 15 drives the transmission rod 12 to rotate intermittently. The top of the workbench 1 is fixedly connected to a driving motor 19 near the support frame 18. The top of the workbench 1 is fixedly connected to a fixing frame 20 near the driving motor 19. The bottom end of the fixing frame 20 rotates A worm 21 is connected, and the bottom end of the worm 21 is fixedly connected to the output shaft of the drive motor 19, wherein the drive motor 19 drives the worm 21 to rotate. The other end of the outer peripheral wall of the rotating shaft 15 is fixedly connected to a worm wheel 22 meshing with the worm 21, and the lead angle between the worm wheel 22 and the worm 21 is smaller than the friction angle. Through the mutual cooperation between the worm wheel 22 and the worm 21, the rotation rate of the rotating shaft 15 driven by the drive motor 19 is reduced. At the same time, the self-locking effect between the worm wheel 22 and the worm 21 improves the stability of the device operation.

[0027] like Figure 3 and Figure 4As shown, in a certain embodiment, in order to improve the convenience of using the device, guide rods 23 are slidably connected to both sides of the inner circumferential wall of the clamping disk 6, and one end of each guide rod 23 is fixedly connected to a clamping block 24, and a spring 25 is sleeved between the outer circumferential wall of the guide rod 23 and the clamping block 24. Through the mutual cooperation between the guide rod 23 and the spring 25, a pair of clamping blocks 24 tend to keep approaching each other, which is convenient for clamping the casting. A fixed rod 26 is fixedly connected to the top of the outer circumferential wall of the clamping disk 6, and a sliding ring 27 is slidably connected to the outer circumferential wall of the fixed rod 26. The other end of each guide rod 23 and one end of the sliding ring 27 are rotatably connected to a pair of connecting curved rods 28 through a rotating shaft. Through the mutual cooperation between the fixed rod 26, the sliding ring 27 and the connecting curved rod 28, it is easy to drive the pair of guide rods 23 away from each other, which is convenient for taking and placing castings, thereby improving the convenience of using the device.

[0028] like Figure 1 and Figure 3 As shown, in a certain embodiment, in order to improve the detection stability of the device, the detection assembly includes a guide rail 7 fixedly connected to the top of the workbench 1 near the baffle 2, the inner wall of the guide rail 7 is slidably connected with a slider 8, the top of the slider 8 is fixedly connected with a support rod 10, the top of the support rod 10 is fixedly connected with a detection head 11, and a pair of limit blocks 9 are clamped on the inner wall of the guide rail 7 near the slider 8. Through the mutual cooperation between the limit blocks 9 and the guide rail 7, the slider 8 is limited to prevent the slider 8 from driving the detection head 11 to shift in position during the detection process.

[0029] Working principle: When in use, first press one of the sliding rings 27 to make the sliding ring 27 slide down along the outer peripheral wall of the fixed rod 26, and then through the mutual cooperation between the sliding ring 27 and the connecting curved rod 28, drive the pair of guide rods 23 to move away from each other, so that the pair of clamping blocks 24 move away from each other, and then place the casting between the pair of clamping blocks 24, release the sliding ring 27, and drive the guide rod 23 and the clamping block 24 to reset through the spring 25, so that the pair of clamping blocks 24 contact and clamp the casting, and then press the other sliding ring 27, and start the electric telescopic rod 4 at the same time, and drive one of the clamping plates 6 and the casting close to the other clamping plate 6 through the electric telescopic rod 4, and then release the sliding ring 27, and the two pairs of clamping blocks 24 jointly clamp and fix the casting, and lift the casting for inspection The stability of the detection head 11 is then checked, and the ultrasonic wave is transmitted to the surface of the casting through the detection head 11. When the ultrasonic wave encounters a defect, it will be reflected or scattered. The position, shape and size of the defect are judged according to the intensity and time of the reflected signal. Then the drive motor 19 is started, and the worm 21 is driven to rotate by the drive motor 19. The worm 21 and the worm wheel 22 cooperate with each other to drive the rotating shaft 15 to rotate slowly. Then, the driving wheel 16 is driven to rotate through the rotating shaft 15. The driving wheel 16 cooperates with the driving groove 17 and the driven wheel 14 to drive the connecting ring 13 and the transmission rod 12 to rotate slowly and intermittently. Then, the clamping disk 6 is driven to rotate through the transmission rod 12, thereby driving the casting to rotate slowly and intermittently, so as to improve the accuracy of the inspection results.

[0030] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0031] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A casting surface defect size inspection tool, comprising a workbench (1), wherein both ends of the workbench (1) are fixedly connected to baffles (2), characterized in that: It also includes a rotating assembly and a detecting assembly arranged above the workbench (1); The rotating assembly comprises a support frame (18) fixedly connected to one side of the top of the workbench (1), one end of the support frame (18) is rotatably connected to a transmission rod (12), and one end of the transmission rod (12) is rotatably connected to the inner wall of one of the baffles (2), one side of the inner wall of the other baffle (2) is fixedly connected to an electric telescopic rod (4), the extended end of the electric telescopic rod (4) is rotatably connected to a connecting block (5), one end of the transmission rod (12) and one end of the connecting block (5) are both fixedly connected to a clamping disk (6), one end of the outer peripheral wall of the transmission rod (12) is fixedly connected to a connecting ring (13), the outer peripheral wall of the connecting ring (13) is fixedly connected to a plurality of evenly distributed driven wheels (14), the inner wall of one of the baffles (2) is rotatably connected near the connecting ring (13), and the outer peripheral wall of the connecting ring (13) is fixedly connected to the driven wheels (14) evenly distributed. A rotating shaft (15) is rotatably connected, one end of the outer peripheral wall of the rotating shaft (15) is fixedly connected to a driving wheel (16), and a driving groove (17) adapted to the driven wheel (14) is provided on the outer peripheral wall of the driving wheel (16). A driving motor (19) is fixedly connected to the top of the workbench (1) near the support frame (18), and a fixing frame (20) is fixedly connected to the top of the workbench (1) near the driving motor (19). A worm (21) is rotatably connected to the bottom end of the fixing frame (20), and the bottom end of the worm (21) is fixedly connected to the output shaft of the driving motor (19). A worm wheel (22) meshing with the worm (21) is fixedly connected to the other end of the outer peripheral wall of the rotating shaft (15), and the lead angle between the worm wheel (22) and the worm (21) is smaller than the friction angle.

2. A casting surface defect size inspection tool according to claim 1, characterized in that: Both sides of the inner peripheral wall of the clamping disk (6) are slidably connected to guide rods (23), one end of each guide rod (23) is fixedly connected to a clamping block (24), and a spring (25) is sleeved between the outer peripheral wall of the guide rod (23) and the clamping block (24).

3. A casting surface defect size inspection tool according to claim 2, characterized in that: A fixed rod (26) is fixedly connected to the top of the outer peripheral wall of the clamping disk (6), and a sliding ring (27) is slidably connected to the outer peripheral wall of the fixed rod (26). The other end of each guide rod (23) and one end of the sliding ring (27) are rotatably connected to a pair of connecting curved rods (28) via a rotating shaft.

4. A casting surface defect size inspection tool according to claim 1, characterized in that: The detection assembly comprises a guide rail (7) fixedly connected to the top of the workbench (1) near the baffle (2), and a slider (8) is slidably connected to the inner wall of the guide rail (7).

5. A casting surface defect size inspection tool according to claim 4, characterized in that: The top end of the slider (8) is fixedly connected to a support rod (10), the top end of the support rod (10) is fixedly connected to a detection head (11), and a pair of limit blocks (9) are clamped on the inner wall of the guide rail (7) near the slider (8).

6. A casting surface defect size inspection tool according to claim 1, characterized in that: A support bracket (3) is fixedly connected to the top of the workbench (1) near the electric telescopic rod (4), and the top end of the support bracket (3) is adapted to the extended end of the electric telescopic rod (4).

Images