An ultrasonic flaw detection device for alloy die castings

Abstract

The present invention discloses an ultrasonic flaw detection device for alloy die castings, including an operating table and an ultrasonic flaw detection host, wherein the ultrasonic flaw detection host is fixed on the operating table, and a flaw detection component is arranged above the operating table, wherein the flaw detection component includes a movable frame, a mounting frame, an inclined plate, a detection probe, a ball, a cross bar, and a second spring, and a mounting frame is arranged on the front side of the movable frame. In the use process of the ultrasonic flaw detection device for alloy die castings, when the movable frame moves downward to drive the top block to move downward to contact with the workpiece, the coating roller contacts with the workpiece, and the top block is forced to move relative to the fixed frame, and the action of the piston, the cylinder, the one-way air inlet valve, the one-way air outlet valve and the conduit can make the air in the cylinder enter the coupling agent storage barrel, and the coupling agent in the coupling agent storage barrel can be discharged to the coating roller through the action of air pressure, and the coating of the coupling agent can be realized by moving the device downward to make the coating roller roll, so as to carry out the detection.

Description

Technical Field

[0001] The invention relates to the technical field of alloy die casting detection, in particular to an alloy die casting ultrasonic flaw detection device. Background Art

[0002] After the cylindrical alloy die castings are produced, ultrasonic flaw detection is required to ensure the production quality of the alloy die castings.

[0003] Ultrasonic flaw detection instrument is a method to check part defects by using the characteristics that ultrasound energy can penetrate deep into metal plates and reflect at the edge of the interface when entering from one section to another. Ultrasonic flaw detection instrument can quickly, conveniently, non-destructively and accurately detect, locate, evaluate and diagnose various defects (including longitudinal cracks, transverse cracks, looseness, pores, slag inclusions, etc.) inside metal plate workpieces. In order to ensure the accuracy of detection, the existing ultrasonic flaw detection device needs to be manually coated with coupling agent when it is actually used, which is more troublesome. Therefore, in view of the above problems, an ultrasonic flaw detection device for alloy die-castings is designed to better meet the actual use needs. Summary of the invention

[0004] The object of the present invention is to provide an ultrasonic flaw detection device for alloy die castings to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an ultrasonic flaw detection device for alloy die castings, comprising an operating table and an ultrasonic flaw detection main unit, the operating table is fixed with an ultrasonic flaw detection main unit, a flaw detection component is arranged above the operating table, the flaw detection component comprises a movable frame, a mounting frame, an inclined plate, a detection probe, a ball, a cross bar and a second spring, a mounting frame is arranged on the front side of the movable frame, a detection probe is fixed on the front end surface of the mounting frame, and the detection probe is electrically connected to the ultrasonic flaw detection main unit, a coating mechanism is installed on the mounting frame, the coating mechanism comprises a fixed frame, a cylinder, a piston, a top block, a third spring, a coupling agent storage barrel and a coating roller, the fixed frame is fixed on the mounting frame, a cylinder is fixed on the upper end surface of the fixed frame, and a single The coupling agent storage barrel is connected to the air inlet valve and the one-way air outlet valve, the piston is slidably connected in the cylinder, the lower end of the piston is fixed with a top block, and the top block is located below the front side of the detection probe, a third spring is fixed between the piston and the fixed frame, the cylinder is connected to the coupling agent storage barrel through the one-way air outlet valve and the conduit, the coupling agent storage barrel is fixed on the fixed frame, the coupling agent storage barrel is connected to the mounting frame through the conduit, and the conduit outlets on the coupling agent storage barrel and the mounting frame are in contact with the coating roller, and a liquid inlet valve port is provided on the coupling agent storage barrel, the coating roller bearing is connected to the mounting frame, and the front end surface of the coating roller is flush with the front end surface of the detection probe, through the action of the cylinder, the piston and the top block, the coupling agent in the coupling agent storage barrel is discharged onto the coating roller, and the coating of the coupling agent is achieved by the rolling of the coating roller.

[0006] Preferably, a support frame is fixed on the operating table, and a motor is fixed on the support frame, and a threaded rod is fixed to the output end of the motor, and the threaded rod is in contact with the movable frame through a thread, and a driving wheel is also fixed on the threaded rod. Through the above structure, a basic guarantee can be provided for the height adjustment of the movable frame, thereby ensuring the normal operation of the device.

[0007] Preferably, a vertical rod is fixed between the operating table and the support frame, and the vertical rod is slidably connected to the movable frame. When the movable frame moves up and down, the sliding guide effect between the movable frame and the vertical rod can ensure that the movable frame performs stable linear motion.

[0008] Preferably, a turntable is connected to the bearing on the operating table, and a driven wheel is fixed to the lower end of the turntable, and the driven wheel is connected to the driving wheel through a belt. A limiting mechanism is installed on the turntable, and the transmission action between the driven wheel and the driving wheel can provide a basic force for the rotation of the limiting mechanism, thereby providing a basic guarantee for achieving comprehensive inspection of the workpiece.

[0009] Preferably, the limiting mechanism includes a circular plate, a guide rod, a slider, a limiting rod, a connecting rod, a sliding rod and a first spring. The circular plate is arranged directly above the turntable, and guide rods are fixed at equal angles on the circular plate, and a slider is slidably connected to the guide rod. At the same time, the limiting rod is fixed on the slider, and the surface of the limiting rod is a rough structure. The position of the limiting rod can be adjusted by the sliding action between the slider and the guide rod. The limiting fixation of the workpiece can be achieved through the action of the limiting rod to ensure the stability of the workpiece.

[0010] Preferably, the slider is rotatably connected to one end of the connecting rod, and the other end of the connecting rod is rotatably connected to the turntable. When the circular plate moves relative to the turntable, the transmission action of the connecting rod can provide a basic force for the movement of the slider, thereby ensuring the normal operation of the device.

[0011] Preferably, a sliding rod is fixed to the lower end surface of the circular plate, and the sliding rod is slidably connected to the turntable and the operating table. When the circular plate moves relative to the turntable, the sliding guiding effect between the sliding rod, the turntable and the operating table can ensure the stability of the circular plate's movement.

[0012] Preferably, the lower end surface of the circular plate is fixed to one end of the first spring, and the other end of the first spring is fixed to the turntable. The elastic action of the first spring can provide a basic force for the automatic reset of the circular plate, thereby ensuring the normal use of the device.

[0013] Preferably, an inclined plate is fixed on the lower side of the mounting frame, and a ball is also fixed on the front end surface of the mounting frame, and the front end surface of the ball is flush with the front end surface of the detection probe. When performing detection, the position of the detection probe can be automatically adjusted through the sliding action between the inclined plate and the workpiece to meet the detection needs of workpieces of different sizes. Combined with the positioning action of the ball, the positioning of the detection probe can be achieved to avoid damage to the detection probe.

[0014] Preferably, a cross bar is fixed to the rear end face of the mounting frame, and the cross bar is slidably connected to the movable frame, and a second spring is also fixed between the cross bar and the movable frame. When the mounting frame moves relative to the movable frame, the sliding action between the cross bar and the movable frame can ensure the stability of the movement of the mounting frame, thereby realizing the left and right position adjustment of the detection probe. The elastic action of the second spring can provide a basic force for the automatic resetting of the detection probe.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The ultrasonic flaw detection device for alloy die castings, when the movable frame moves downward to drive the top block to move downward to contact the workpiece, the coating roller contacts the workpiece, and the top block is forced to move relative to the fixed frame, and the piston, cylinder, one-way air inlet valve, one-way air outlet valve and conduit are coordinated to allow the air in the cylinder to enter the coupling agent storage barrel, and the coupling agent in the coupling agent storage barrel can be discharged to the coating roller through the conduit through the air pressure, and the coating roller can be rolled by moving the device downward to achieve the coupling agent coating effect, so as to facilitate the detection;

[0017] 2. The ultrasonic flaw detection device for alloy die castings can adjust the position of the movable frame and the detection probe through the action of the motor, the threaded rod and the vertical rod during the use of the device, so as to ensure the normal detection. When the device moves down, the position of the detection probe can be automatically adjusted in cooperation with the action of the inclined plate, the cross bar and the second spring, so as to ensure the fit between the detection probe and the workpiece, thereby ensuring the normal detection.

[0018] 3. During the use of the alloy die-casting ultrasonic flaw detection device, the gravity of the workpiece, in conjunction with the action of the circular plate, guide rod, slider, connecting rod, slide rod and the first spring, can realize automatic adjustment of the position of the limit rod, ensure that the limit rod contacts the workpiece to achieve self-locking of the workpiece, thereby ensuring the stability of the workpiece during detection, and in conjunction with the action of the motor, threaded rod, driving wheel and driven wheel, the turntable, circular plate and workpiece are rotated, thereby providing a basic guarantee for achieving comprehensive detection of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the device of the present invention from a front view;

[0020] Figure 2 This is a bottom-up three-dimensional structural schematic diagram of the turntable and the limiting mechanism of the present invention;

[0021] Figure 3 It is a schematic diagram of the front cross-sectional three-dimensional structure of the turntable and the limiting mechanism of the present invention;

[0022] Figure 4 It is a bottom-up three-dimensional structural schematic diagram of the flaw detection assembly and the liquid coating mechanism of the present invention;

[0023] Figure 5 It is a schematic diagram of the three-dimensional structure of the flaw detection assembly and the liquid coating mechanism of the present invention from a side view;

[0024] Figure 6 It is a schematic diagram of the front view and cross-section of the three-dimensional structure of the flaw detection component and the liquid coating mechanism of the present invention.

[0025] In the figure: 1. operating table; 2. ultrasonic flaw detection host; 3. support frame; 4. motor; 5. threaded rod; 501. driving wheel; 6. vertical rod; 7. turntable; 701. driven wheel; 8. limiting mechanism; 801. round plate; 802. guide rod; 803. slider; 804. limiting rod; 805. connecting rod; 806. sliding rod; 807. first spring; 9. flaw detection assembly; 901. movable frame; 902. mounting frame; 903. tilting plate; 904. detection probe; 905. ball; 906. cross bar; 907. second spring; 10. coating mechanism; 1001. fixing frame; 1002. cylinder; 1003. piston; 1004. top block; 1005. third spring; 1006. coupling agent storage barrel; 1007. coating roller. DETAILED DESCRIPTION

[0026] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0027] See also Figure 1-Figure 6 The present invention provides a technical solution: an ultrasonic flaw detection device for alloy die castings, comprising an operating table 1 and an ultrasonic flaw detection host 2, the ultrasonic flaw detection host 2 is fixed on the operating table 1, a flaw detection component 9 is arranged above the operating table 1, the flaw detection component 9 comprises a movable frame 901, a mounting frame 902, an inclined plate 903, a detection probe 904, a ball 905, a cross bar 906 and a second spring 907, a mounting frame 902 is arranged on the front side of the movable frame 901, a detection probe 904 is fixed on the front end surface of the mounting frame 902, and the detection probe 904 is electrically connected to the ultrasonic flaw detection host 2, and a coating mechanism 10 is installed on the mounting frame 902.

[0028] The limiting mechanism 8 includes a circular plate 801, a guide rod 802, a slider 803, a limiting rod 804, a connecting rod 805, a sliding rod 806 and a first spring 807. The circular plate 801 is arranged directly above the turntable 7, and the guide rod 802 is fixed at an equal angle on the circular plate 801, and the slider 803 is slidably connected to the guide rod 802, and the limiting rod 804 is fixed on the slider 803, and the surface of the limiting rod 804 is a rough structure; the slider 803 is rotatably connected to one end of the connecting rod 805, and the other end of the connecting rod 805 is rotatably connected to the turntable 7; the sliding rod 806 is fixed to the lower end surface of the circular plate 801, and the sliding rod 806 is slidably connected to the turntable 7 and the operating table 1; the lower end surface of the circular plate 801 is fixed to one end of the first spring 807, and the other end of the first spring 807 is fixed to the turntable 7;

[0029] When using the ultrasonic flaw detection device for alloy die castings, Figure 1-Figure 6 As shown, firstly, the cylindrical workpiece to be inspected is placed on the circular plate 801. At this time, the limiting rod 804 is located on the inner side of the workpiece. With the gravity of the workpiece itself, the circular plate 801 is forced to move relative to the turntable 7. With the sliding guide effect between the slide bar 806, the turntable 7 and the operating table 1, the stability of the movement of the circular plate 801 can be ensured. At this time, the first spring 807 is forced to shrink. When the circular plate 801 moves relative to the turntable 7, with the transmission effect of the connecting rod 805, the slider 803 slides on the guide rod 802, thereby adjusting the position of the limiting rod 804 until the limiting rod 804 contacts the inner wall of the workpiece to achieve support and limit, thereby ensuring the stability of the workpiece.

[0030] The coating mechanism 10 includes a fixed frame 1001, a cylinder 1002, a piston 1003, a top block 1004, a third spring 1005, a coupling agent storage barrel 1006 and a coating roller 1007. The fixed frame 1001 is fixed on the mounting frame 902. The cylinder 1002 is fixed on the upper end surface of the fixed frame 1001, and a one-way air inlet valve and a one-way air outlet valve are installed on the cylinder 1002. The piston 1003 is slidably connected in the cylinder 1002. The top block 1004 is fixed at the lower end of the piston 1003, and the top block 1004 is located below the front side of the detection probe 904. The third spring 1005 is fixed between the piston 1003 and the fixed frame 1001. The cylinder 1002 is connected to the coupling agent storage barrel 1006 through the one-way air outlet valve and the conduit. The barrels 1006 are connected to each other, the coupling agent storage barrel 1006 is fixed on the fixing frame 1001, the coupling agent storage barrel 1006 is connected to the mounting frame 902 through a conduit, and the coupling agent storage barrel 1006 and the conduit outlet on the mounting frame 902 are in contact with the coating roller 1007, and a liquid inlet valve is provided on the coupling agent storage barrel 1006, the coating roller 1007 is connected to the mounting frame 902 by a bearing, and the front end surface of the coating roller 1007 is flush with the front end surface of the detection probe 904, and the coupling agent of the coupling agent storage barrel 1006 is discharged to the coating roller 1007 through the action of the cylinder 1002, the piston 1003 and the top block 1004, and the coupling agent is applied by the rolling of the coating roller 1007;

[0031] A support frame 3 is also fixed on the operating table 1, and a motor 4 is fixed on the support frame 3, and a threaded rod 5 is fixed on the output end of the motor 4, and the threaded rod 5 is in contact with the movable frame 901 through a thread, and a driving wheel 501 is also fixed on the threaded rod 5; a vertical rod 6 is also fixed between the operating table 1 and the support frame 3, and the vertical rod 6 and the movable frame 901 are slidably connected; a turntable 7 is connected to the bearing on the operating table 1, and a driven wheel 701 is fixed at the lower end of the turntable 7, and the driven wheel 701 is connected to the movable frame 901 through a thread. The belt is connected to the driving wheel 501, and a limit mechanism 8 is installed on the turntable 7; an inclined plate 903 is fixed to the lower side of the mounting frame 902, and a ball 905 is also fixed to the front end surface of the mounting frame 902, and the front end surface of the ball 905 is flush with the front end surface of the detection probe 904; a cross bar 906 is fixed to the rear end surface of the mounting frame 902, and the cross bar 906 is slidably connected to the movable frame 901, and a second spring 907 is also fixed between the cross bar 906 and the movable frame 901;

[0032] After the workpiece is installed, Figure 1-Figure 6As shown, by starting the motor 4 to drive the threaded rod 5 to rotate, the threaded connection between the threaded rod 5 and the movable frame 901 is coordinated, so that the movable frame 901 is forced to move downward, thereby driving the detection probe 904 and the coating mechanism 10 to move downward, and the sliding guide effect between the movable frame 901 and the vertical rod 6 can ensure the stability of the movement of the movable frame 901. During the downward movement of the movable frame 901, when the inclined plate 903 contacts the workpiece, the sliding effect between the inclined plate 903 and the workpiece makes the mounting frame 902 move backward, thereby moving the detection probe 904 backward, and the sliding guide effect between the cross bar 906 and the movable frame 901 can ensure the stability of the movement of the mounting frame 902 and the detection probe 904. When the coating roller 1007 is separated, the workpiece is in contact with the coating roller 1007. The front end surface of the coating roller 1007 can be made to contact with the workpiece through the rolling action of the coating roller 1007. Since the front end surface of the detection probe 904 is flush with the front end surface of the coating roller 1007, it can be ensured that when the device continues to move downward, the detection probe 904 can contact with the workpiece to achieve the flaw detection effect. In addition, during the downward movement of the detection probe 904 and the coating mechanism 10, when the top block 1004 contacts with the workpiece, the positioning of the top block 1004 can be achieved. At this time, the device continues to move downward so that the top block 1004 moves relative to the fixed frame 1001, so that the piston 1003 slides upward in the cylinder 1002, and the exhaust effect of the cylinder 1002 is achieved, cooperating with the one-way air inlet valve and the one-way air outlet valve on the cylinder 1002. The effect of the coupling agent storage barrel 1006 can make the gas in the cylinder 1002 pass through the conduit to enter the coupling agent storage barrel 1006, so that the air pressure in the coupling agent storage barrel 1006 increases. Through the effect of the air pressure, the coupling agent in the coupling agent storage barrel 1006 is discharged through the conduit to the coating roller 1007. The coupling agent can be applied to the workpiece by the coating roller 1007 moving downward to contact with the workpiece and rolling. Since the coating roller 1007 is located below the detection probe 904, it can be ensured that after the coupling agent coating is completed, the detection probe 904 contacts the workpiece again, thereby effectively ensuring the accuracy of the detection data. In the detection process, when the coating roller 1007, the detection probe 904 and the ball 905 contact and move downward with the workpiece, the front end surface of the detection probe 904 and the coating roller 100 The front end surface of the coating roller 1007 is flush with the front end surface of the ball 905 and the front end surface of the detection probe 904. At this time, the rolling limiting effect of the coating roller 1007 and the ball 905 can ensure that the detection probe 904 contacts the workpiece to achieve normal flaw detection, and can also avoid the detection probe 904 and the workpiece from sliding too tightly and causing damage to the detection probe 904 or the workpiece, thereby ensuring the service life of the device. When the detection probe 904 moves downward to detect the workpiece, the transmission effect between the driven wheel 701 and the driving wheel 501 can make the turntable 7, the limiting mechanism 8 and the workpiece rotate, and cooperate with the downward movement of the detection probe 904, so that the detection probe 904 can be spirally moved downward on the outer surface of the workpiece, thereby realizing a comprehensive detection of the workpiece.This is the working principle of the ultrasonic flaw detection device for alloy die castings.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An ultrasonic flaw detection device for alloy die castings, comprising an operating table (1) and an ultrasonic flaw detection host (2), wherein the ultrasonic flaw detection host (2) is fixed on the operating table (1), characterized in that: A flaw detection assembly (9) is arranged above the operating table (1), and the flaw detection assembly (9) comprises a movable frame (901), a mounting frame (902), an inclined plate (903), a detection probe (904), a ball (905), a cross bar (906) and a second spring (907). A mounting frame (902) is arranged on the front side of the movable frame (901), a detection probe (904) is fixed on the front end surface of the mounting frame (902), and the detection probe (904) is electrically connected to the ultrasonic flaw detection host (2). A coating mechanism is installed on the mounting frame (902). (10), the coating mechanism (10) comprises a fixed frame (1001), a cylinder (1002), a piston (1003), a top block (1004), a third spring (1005), a coupling agent storage barrel (1006) and a coating roller (1007), the fixed frame (1001) is fixed on the mounting frame (902), the cylinder (1002) is fixed on the upper end surface of the fixed frame (1001), and a one-way air inlet valve and a one-way air outlet valve are installed on the cylinder (1002), the piston (1003) is slidably connected inside the cylinder (1002), and the piston ( A top block (1004) is fixed at the lower end of the piston (1003), and the top block (1004) is located below the front side of the detection probe (904); a third spring (1005) is fixed between the piston (1003) and the fixing frame (1001); the cylinder (1002) is connected to the coupling agent storage barrel (1006) through a one-way air outlet valve and a conduit; the coupling agent storage barrel (1006) is fixed on the fixing frame (1001); the coupling agent storage barrel (1006) is connected to the mounting frame (902) through a conduit; and the coupling agent storage barrel (1006) The outlet of the conduit on the mounting frame (902) is in contact with the coating roller (1007), and a liquid inlet valve is provided on the coupling agent storage barrel (1006). The coating roller (1007) is bearing-connected to the mounting frame (902), and the front end surface of the coating roller (1007) is flush with the front end surface of the detection probe (904). Through the action of the cylinder (1002), the piston (1003) and the top block (1004), the coupling agent in the coupling agent storage barrel (1006) is discharged onto the coating roller (1007), and the coating of the coupling agent is achieved by the rolling of the coating roller (1007).

2. The ultrasonic flaw detection device for alloy die castings according to claim 1, characterized in that: A support frame (3) is also fixed on the operating table (1), and a motor (4) is fixed on the support frame (3), and a threaded rod (5) is fixed to the output end of the motor (4), and the threaded rod (5) is in contact with the movable frame (901) through a thread, and a driving wheel (501) is also fixed on the threaded rod (5).

3. The ultrasonic flaw detection device for alloy die castings according to claim 1, characterized in that: A vertical rod (6) is also fixed between the operating table (1) and the support frame (3), and the vertical rod (6) and the movable frame (901) are slidably connected.

4. The ultrasonic flaw detection device for alloy die castings according to claim 1, characterized in that: The operating table (1) is connected to a rotating disk (7) via a bearing, and a driven wheel (701) is fixed to the lower end of the rotating disk (7), and the driven wheel (701) is connected to the driving wheel (501) via a belt, and a limiting mechanism (8) is installed on the rotating disk (7).

5. The ultrasonic flaw detection device for alloy die castings according to claim 4 is characterized in that: The limiting mechanism (8) comprises a circular plate (801), a guide rod (802), a slider (803), a limiting rod (804), a connecting rod (805), a sliding rod (806) and a first spring (807); the circular plate (801) is arranged directly above the rotating disk (7); the guide rod (802) is fixed at an equal angle on the circular plate (801); the slider (803) is slidably connected to the guide rod (802); the limiting rod (804) is fixed to the slider (803); and the surface of the limiting rod (804) is a rough structure.

6. The ultrasonic flaw detection device for alloy die castings according to claim 5, characterized in that: The slider (803) is rotatably connected to one end of the connecting rod (805), and the other end of the connecting rod (805) is rotatably connected to the rotating disk (7).

7. The ultrasonic flaw detection device for alloy die castings according to claim 5, characterized in that: A sliding rod (806) is fixed to the lower end surface of the circular plate (801), and the sliding rod (806) is slidably connected to the rotating disk (7) and the operating table (1).

8. The ultrasonic flaw detection device for alloy die castings according to claim 5, characterized in that: The lower end surface of the circular plate (801) is fixed to one end of a first spring (807), and the other end of the first spring (807) is fixed to the rotating disk (7).

9. The ultrasonic flaw detection device for alloy die castings according to claim 1, characterized in that: An inclined plate (903) is fixed on the lower side of the mounting frame (902), and a ball (905) is also fixed on the front end surface of the mounting frame (902), and the front end surface of the ball (905) is flush with the front end surface of the detection probe (904).

10. The ultrasonic flaw detection device for alloy die castings according to claim 1, characterized in that: A cross bar (906) is fixed to the rear end surface of the mounting frame (902), and the cross bar (906) and the movable frame (901) are slidably connected, and a second spring (907) is also fixed between the cross bar (906) and the movable frame (901).

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