Device for detecting internal casting defects of driver shell

Abstract

The invention discloses an internal casting defect detection device for a driver shell, and relates to the technical field of surface detection, the internal casting defect detection device comprises a conveying device and a detection table, the conveying device is composed of a conveying belt and a mechanical arm, defect detection equipment is arranged on the detection table, and the defect detection equipment is an ultrasonic flaw detection device. A clamping assembly is arranged on the mechanical arm, and the clamping assembly is used for transferring the driver shell; the clamping assembly conveys high-pressure steam into the driver shell, so that the high-pressure steam moves along the side wall of the driver shell, then the high-pressure steam makes contact with impurities on the side wall, the impurities fall off from the side wall in the high-temperature and high-pressure state, and the effect of cleaning the side wall of the driver shell is achieved; and after the high-pressure steam is conveyed into the driver shell, the humidity in the driver shell is improved, and then the situation that static electricity is generated in the driver shell, and consequently the follow-up detection precision is affected is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of surface detection, in particular to an internal casting defect detection device for a driver housing. Background Art

[0002] The driver housing is an important component of the electrical or mechanical drive system, usually used to protect the internal motor, transmission parts or other key components. The driver housing needs to be inspected for defects after production. Usually, the driver housing is moved to the inspection table by manual semi-transportation or forklift lifting. After being transferred to the inspection table, its surface needs to be cleaned to avoid the impurities on the surface affecting the inspection accuracy, which takes a long time and is labor-intensive. Summary of the invention

[0003] The object of the present invention is to provide a device for detecting internal casting defects of a driver housing to solve the problems raised in the prior art.

[0004] To achieve the above object, the present invention provides the following technical solutions: A device for detecting internal casting defects of a driver housing, comprising a conveying device and a detection platform, wherein the conveying device is composed of a conveyor belt and a mechanical arm, a defect detection device is arranged on the detection platform, and the defect detection device is an ultrasonic flaw detection device, the mechanical arm is arranged between the conveyor belt and the detection platform, and a clamping assembly is arranged on the mechanical arm, and the clamping assembly is used to transport the driver housing; The conveyor belt transports the driver housing so that the driver housing moves to the side close to the mechanical arm. When the driver housing moves to the mechanical arm, the controller controls the mechanical arm to start, and the mechanical arm drives the clamping assembly to move, thereby driving the clamping assembly to move the driver housing so that the clamping assembly clamps and fixes the driver housing. Then the mechanical arm drives the driver housing to move toward the inspection table. During the movement of the driver housing, the clamping assembly transports high-pressure steam to the interior of the driver housing, so that the high-pressure steam moves along the side wall of the driver housing, and then the high-pressure steam contacts the impurities on the side wall, so that the impurities fall off the side wall under high temperature and high pressure, thereby achieving the effect of cleaning the side wall of the driver housing, and after the high-pressure steam is transported to the interior of the driver housing, the humidity inside the driver housing is increased, thereby avoiding the generation of static electricity inside the driver housing, thereby affecting the accuracy of subsequent inspections. When the driver housing moves to the inspection table, the ultrasonic flaw detection device performs defect detection on it.

[0005] Preferably, the clamping assembly comprises a main body block, a plurality of clamping arms are arranged around the main body block, the plurality of clamping arms are arranged around the axis of the main body block, and the clamping arms are composed of a fixing plate, a clamping plate and a bottom supporting plate.

[0006] Preferably, the fixed plate is connected to the main body block, a clamping plate is provided at the bottom of the fixed plate, a No. 1 micro motor is provided at the bottom of the fixed plate, a transmission shaft is provided on the driving shaft of the No. 1 micro motor, the clamping plate is rotatably connected to the fixed plate through the transmission shaft, a bottom supporting plate is provided at the bottom of the clamping plate, a No. 2 micro motor is provided at the bottom of the clamping plate, a rotating shaft is provided on the driving shaft of the No. 2 micro motor, and the bottom supporting plate is rotatably connected to the clamping plate through the transmission shaft.

[0007] Preferably, a rotation groove is provided on one side of the clamping plate close to the axis of the main block, a rotation airbag is provided in the rotation groove, and an auxiliary plate is provided on the side of the rotation airbag away from the rotation groove.

[0008] Preferably, a fixing group is provided at the bottom of the main block, and the fixing group consists of a fixing block, an expansion airbag and a plurality of extrusion plates. The fixing block is located at the bottom of the main block, an expansion airbag is provided on the side of the fixing block away from the axis of the main block, and an extrusion plate is provided on the side of the expansion airbag away from the fixed block. An air pump No. 1 is provided on the outside of the robotic arm, and the air pump No. 1 is respectively connected to the rotating airbag and the expansion airbag through pipes.

[0009] Preferably, a slope is provided on the side of the extrusion plate away from the expansion airbag, a plurality of steam ports are provided in the extrusion plate, the plurality of steam ports are arranged equidistantly along the side of the extrusion plate, a steam groove is provided in the main body block, a steam chamber is provided on the outside of the robotic arm, and the steam chamber is connected to the steam groove through a pipe.

[0010] Preferably, a rotating column is provided at the center of the fixed block, a suction pipe is provided at the center of the rotating column, a main air outlet is provided on the side of the suction pipe away from the fixed block, a plurality of blowing pipes are provided around the suction pipe, the plurality of blowing pipes are arranged around the axis of the suction pipe, a side air outlet is provided between the blowing pipe and the main air outlet, and the side air outlet is connected to the suction pipe.

[0011] Preferably, the rotating column consists of a lower rotating column, a middle rotating column and an upper rotating column, the lower rotating column is connected to the fixed block, the middle rotating column is located on the side of the lower rotating column away from the fixed block, and the upper rotating column is located on the side of the middle rotating column away from the lower rotating column, the tops of the upper rotating column and the middle rotating column are both provided with main gears, the bottoms of the middle rotating column and the lower rotating column are both provided with No. 3 micro motors, and the driving shaft of the No. 3 micro motor is provided with a driving gear, and the driving gear is meshed with the main gear.

[0012] Preferably, the blowing pipe is connected to air pump No. 1 through a pipeline, a solenoid valve is provided in the blowing pipe, a No. 2 air pump is also provided outside the robotic arm, the suction pipe is connected to air pump No. 2 through a pipeline, the No. 2 air pump is connected to the steam chamber through a pipeline, an impurity groove is provided on the fixed block, an impurity chamber is provided outside the robotic arm, and the impurity groove is connected to the impurity chamber through a pipeline.

[0013] When the mechanical arm drives the main block to move to the top of the driver housing, the mechanical arm drives the main block to descend, and when the main block descends, the clamping arm and the fixing group are driven to descend, the clamping arm contacts the outer wall of the driver housing, and the fixing group extends into the interior of the driver housing; When the fixing plate contacts the outside of the driver housing, the controller controls the No. 1 micro motor to move, and the driving shaft of the No. 1 micro motor drives the transmission shaft to rotate, and then the clamping plate rotates under the rotation of the transmission shaft, and the clamping plate drives the bottom support plate to rotate toward the side close to the driver housing, and then the clamping plate contacts the outside of the driver housing, and then the controller controls the No. 2 micro motor to start, and the driving shaft of the No. 2 micro motor drives the rotating shaft to rotate, and then the bottom support plate rotates under the rotation of the rotating shaft, and then the bottom support plate rotates toward the side close to the bottom of the driver housing, so that the bottom support plate contacts the bottom of the driver housing and lifts the driver housing; When the clamping arm clamps the driver housing, the fixing group extends into the interior of the driver housing, and then the controller controls the No. 1 air pump to start, and the No. 1 air pump draws air from the outside, and then the air is pressurized and transported to the expansion airbag and the rotating airbag through the pipeline, so that the expansion airbag and the rotating airbag expand under the action of the gas, and after the rotating airbag expands, the auxiliary plate rotates to the side away from the rotating groove, so that the auxiliary plate contacts the side of the driver housing, and the side of the driver housing is auxiliary lifted, and cooperates with the bottom support plate to realize the lifting and fixing of the driver housing, and after the expansion airbag expands, it drives the extrusion plate to rotate to the side close to the inner wall of the driver housing. Then, the extrusion plate contacts the inner wall of the driver housing, the clamping arm clamps the outside of the driver housing, and the extrusion plate clamps the inside of the driver housing, so that the extrusion plate and the clamping arm cooperate with each other to clamp and fix the inside and outside of the driver housing, thereby improving the clamping stability of the driver housing and avoiding the driver housing from falling off during transportation. In addition, through the expansion of the expansion airbag, the extrusion plate can clamp the driver housings of different inner diameters, thereby improving the adaptability of the equipment, and there is no need to replace the clamp of the corresponding size for the driver housing of a specific size, thereby improving the efficiency of the driver housing transportation; When the driver housing is clamped and fixed, the robot arm rotates the main block so that the driver housing is under the main block when it rotates. Then the controller controls the valve in the steam chamber to open, and then the high-pressure steam is transported to the steam tank through the pipeline. Then the high-pressure steam is transported to the steam port through the steam tank and finally ejected through the steam port. Since the side of the extrusion plate close to the inner wall of the driver housing is provided with an inclined surface, the high-pressure steam is ejected toward the inner wall of the driver housing and moves upward along the inner wall of the driver housing. Since the high-pressure steam has a strong impact force and thermal energy, the high-pressure steam can effectively remove impurities on the inner wall of the driver housing during the movement, and the high-temperature steam can increase the temperature, which helps to dissolve some organic matter, thereby achieving the effect of cleaning the inside of the driver housing, improving the cleanliness of the inside of the driver housing, and thus improving the accuracy of surface defect detection; During the process of high-pressure steam being ejected from the steam port, the controller controls the No. 2 air pump to start, and the No. 2 air pump extracts the high-pressure steam inside the driver housing. The high-pressure steam moves from the steam port to the bottom of the driver housing, and then moves from the edge of the driver housing to the center of the driver housing. When the high-pressure steam flows to the side of the rotating column close to the driver housing, the high-pressure steam enters the suction pipe through the main air port and the side air port, and is transported to the No. 2 air pump through the suction pipe, so that the high-pressure steam enters the steam chamber again for temperature and pressure increase. After a period of cleaning, the controller closes the valve in the steam chamber, and then opens the solenoid valve in the blow pipe. The outside air extracted by the No. 1 air pump is transported to the blow pipe, and then sprayed into the interior of the driver housing through the blow pipe; During the process of external air being blown out, the controller controls the No. 3 micro motor to start, and the driving shaft of the No. 3 micro motor drives the driving gear to rotate. When the driving gear rotates, it meshes with the main gear, so that the driving gear drives the main gear to rotate, and then the upper rotating column and the middle rotating column are rotated. The blowing direction of the blow pipe is adjusted by the rotation of the upper rotating column and the middle rotating column, so that the gas sprayed from the blow pipe can blow away the water droplets remaining on the inner wall of the driver housing, and the water droplets are then transported to the impurity groove, and transported to the impurity chamber through the pipeline and stored. After the water droplets are blown away, the corrosion of the driver housing caused by the temporary retention of the water droplets is avoided, and the interference with the detection data during the curve detection process is also avoided, thereby further improving the accuracy of defect detection.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The outside of the driver housing is clamped by the clamping arm, and the inside of the driver housing is clamped by the extrusion plate, so that the extrusion plate and the clamping arm cooperate with each other to clamp and fix the inside and outside of the driver housing, thereby improving the clamping stability of the driver housing and avoiding the driver housing from falling off during transportation. In addition, through the expansion of the expansion airbag, the extrusion plate can clamp the driver housings with different inner diameters, thereby improving the adaptability of the equipment. There is no need to replace the corresponding size of the clamp for the driver housing of a specific size, thereby improving the efficiency of the driver housing transportation.

[0015] 2. After the driver housing is clamped and fixed, the robot arm rotates the main block so that the main block rotates to the bottom of the driver housing. Then the controller controls the valve in the steam chamber to open, and then the high-pressure steam is transported to the steam tank through the pipeline. Then the high-pressure steam is transported to the steam port through the steam tank and finally ejected through the steam port. Since the side of the extrusion plate close to the inner wall of the driver housing is provided with an inclined surface, the high-pressure steam is ejected toward the inner wall of the driver housing and moves upward along the inner wall of the driver housing. Since the high-pressure steam has a strong impact force and thermal energy, the high-pressure steam can effectively remove impurities on the inner wall of the driver housing during the movement, and the high-temperature steam can increase the temperature, which helps to dissolve some organic matter, thereby achieving the effect of cleaning the inside of the driver housing, improving the cleanliness of the inside of the driver housing, and thus improving the accuracy of surface defect detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A perspective view of the present invention; Figure 2 is a schematic diagram of the structure of the clamping assembly; Figure 3 is a schematic diagram of the internal structure of the clamping assembly; Figure 4 is an internal front view of the clamping assembly; Figure 5 is a schematic diagram of the structure of the clamping arm; Figure 6 This is an exploded schematic diagram of a rotating column; Figure 7 It is a schematic diagram of the structure of the rotating column and the driving gear; Figure 8 It is a schematic diagram of the rotating column when rotating; In the figure: 11, robotic arm; 2, testing table; 3. Clamping assembly; 31. Main block; 32. Clamping arm; 33. Fixed plate; 34. Clamping plate; 341. Rotating groove; 342. Rotating airbag; 343. Auxiliary plate; 35. Bottom support plate; 36. Fixed group; 37. Fixed block; 371. Impurity groove; 38. Inflatable airbag; 39. Extrusion plate; 391. Steam port; 392. Steam groove; 40. Rotating column; 41. Suction pipe; 411. Main air port; 412. Side air port; 42. Blowing pipe; 43. Lower rotating column; 44. Middle rotating column; 45. Upper rotating column; 46. Main gear; 461. Driving gear. DETAILED DESCRIPTION

[0017] 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.

[0018] Example: Figure 1-Figure 8 As shown, the present invention provides a technical solution of an internal casting defect detection device for a driver housing, comprising a conveying device and a detection table 2, wherein the conveying device is composed of a conveyor belt and a mechanical arm 11, a defect detection device is arranged on the detection table 2, and the defect detection device is an ultrasonic flaw detection device, the mechanical arm 11 is arranged between the conveyor belt and the detection table 2, and a clamping assembly 3 is arranged on the mechanical arm 11, and the clamping assembly 3 is used for transporting the driver housing.

[0019] As a specific embodiment of the present invention, the clamping assembly 3 includes a main body block 31, and a plurality of clamping arms 32 are arranged around the main body block 31. The plurality of clamping arms 32 are arranged around the axis of the main body block 31, and the clamping arms 32 are composed of a fixing plate 33, a clamping plate 34 and a bottom support plate 35.

[0020] As a specific embodiment of the present invention, the fixed plate 33 is connected to the main block 31, and a clamping plate 34 is arranged at the bottom of the fixed plate 33, and a No. 1 micro motor is arranged at the bottom of the fixed plate 33, and a transmission shaft is arranged on the driving shaft of the No. 1 micro motor, and the clamping plate 34 is rotatably connected to the fixed plate 33 through the transmission shaft, and a bottom support plate 35 is arranged at the bottom of the clamping plate 34, and a No. 2 micro motor is arranged at the bottom of the clamping plate 34, and a rotating shaft is arranged on the driving shaft of the No. 2 micro motor, and the bottom support plate 35 is rotatably connected to the clamping plate 34 through the transmission shaft.

[0021] As a specific embodiment of the present invention, a rotation groove 341 is provided on the side of the clamping plate 34 close to the axis of the main block 31 , a rotation airbag 342 is provided in the rotation groove 341 , and an auxiliary plate 343 is provided on the side of the rotation airbag 342 away from the rotation groove 341 .

[0022] As a specific embodiment of the present invention, a fixing group 36 is provided at the bottom of the main block 31, and the fixing group 36 consists of a fixing block 37, an expansion airbag 38 and a plurality of extrusion plates 39. The fixing block 37 is located at the bottom of the main block 31, and an expansion airbag 38 is provided on the side of the fixing block 37 away from the axis of the main block 31, and an extrusion plate 39 is provided on the side of the expansion airbag 38 away from the fixing block 37. An air pump No. 1 is provided on the outside of the robotic arm 11, and the air pump No. 1 is connected to the rotating airbag 342 and the expansion airbag 38 through pipelines, respectively. An impurity groove 371 is provided on the fixed block 37, and an impurity cavity is provided on the outside of the robotic arm 11, and the impurity groove 371 is connected to the impurity cavity through a pipeline.

[0023] As a specific embodiment of the present invention, a slope is provided on the side of the extrusion plate 39 away from the expansion airbag 38, a plurality of steam ports 391 are provided in the extrusion plate 39, and the plurality of steam ports 391 are arranged equidistantly along the side of the extrusion plate 39, a steam groove 392 is provided in the main body block 31, a steam chamber is provided on the outside of the robot arm 11, and the steam chamber is connected to the steam groove 392 through a pipe.

[0024] As a specific embodiment of the present invention, a rotating column 40 is provided at the center of the fixed block 37, and a suction pipe 41 is provided at the center of the rotating column 40. A main air outlet 411 is provided on the side of the suction pipe 41 away from the fixed block 37, and a plurality of blowing pipes 42 are provided around the suction pipe 41. The plurality of blowing pipes 42 are arranged around the axis of the suction pipe 41, and a side air outlet 412 is provided between the blowing pipe 42 and the main air outlet 411. The side air outlet 412 is connected to the suction pipe 41, and the blowing pipe 42 is connected to the No. 1 air pump through a pipeline. A solenoid valve is provided in the blowing pipe 42, and a No. 2 air pump is also provided on the outside of the robotic arm 11. The suction pipe 41 is connected to the No. 2 air pump through a pipeline, and the No. 2 air pump is connected to the steam chamber through a pipeline.

[0025] As a specific embodiment of the present invention, the rotating column 40 is composed of a lower rotating column 43, a middle rotating column 44 and an upper rotating column 45. The lower rotating column 43 is connected to the fixed block 37, the middle rotating column 44 is located on the side of the lower rotating column 43 away from the fixed block 37, and the upper rotating column 45 is located on the side of the middle rotating column 44 away from the lower rotating column 43. The tops of the upper rotating column 45 and the middle rotating column 44 are both provided with a main gear 46, and the bottoms of the middle rotating column 44 and the lower rotating column 43 are both provided with a No. 3 micro motor, and a driving gear 461 is provided on the driving shaft of the No. 3 micro motor, and the driving gear 461 is meshed with the main gear 46.

[0026] Working principle of the present invention: The conveyor belt transports the driver housing so that the driver housing moves toward the side close to the mechanical arm 11. When the driver housing moves to the mechanical arm 11, the controller controls the mechanical arm 11 to start, and the mechanical arm 11 drives the clamping assembly 3 to move, thereby driving the clamping assembly 3 to move the driver housing. When the robot arm 11 drives the main body block 31 to move to the top of the driver housing, the robot arm 11 drives the main body block 31 to descend, and the main body block 31 drives the clamping arm 32 and the fixing group 36 to descend when descending, the clamping arm 32 contacts the outer wall of the driver housing, and the fixing group 36 extends into the interior of the driver housing; After the fixing plate 33 contacts the outside of the driver housing, the controller controls the No. 1 micro motor to move, and the driving shaft of the No. 1 micro motor drives the transmission shaft to rotate, and then the clamping plate 34 rotates under the rotation of the transmission shaft, and the clamping plate 34 drives the bottom support plate 35 to rotate toward the side close to the driver housing, and then the clamping plate 34 contacts the outside of the driver housing, and then the controller controls the No. 2 micro motor to start, and the driving shaft of the No. 2 micro motor drives the rotating shaft to rotate, and then the bottom support plate 35 rotates under the rotation of the rotating shaft, and the bottom support plate 35 rotates toward the side close to the bottom of the driver housing, so that the bottom support plate 35 contacts the bottom of the driver housing and lifts the driver housing; While the clamping arm 32 is clamping the driver housing, since the fixing group 36 extends into the interior of the driver housing, the controller then controls the No. 1 air pump to start, and the No. 1 air pump extracts the outside air, and then the air is pressurized and transported to the expansion airbag 38 and the rotating airbag 342 through the pipeline, so that the expansion airbag 38 and the rotating airbag 342 expand under the action of the gas, and the rotating airbag 342 rotates the auxiliary plate 343 to the side away from the rotating groove 341 after the expansion, so that the auxiliary plate 343 contacts the side of the driver housing, and assists in lifting the side of the driver housing, and cooperates with the bottom support plate 35 to realize the lifting and fixing of the driver housing, and the expansion airbag 38 drives the extrusion plate 343 to expand after the expansion airbag 38 expands. 9 is rotated toward the side close to the inner wall of the driver housing, so that the extrusion plate 39 contacts the inner wall of the driver housing, and the outside of the driver housing is clamped by the clamping arm 32, and the extrusion plate 39 clamps the inside of the driver housing, so that the extrusion plate 39 and the clamping arm 32 cooperate with each other to clamp and fix the inside and outside of the driver housing, thereby improving the clamping stability of the driver housing and preventing the driver housing from falling off during transportation. In addition, through the expansion of the expansion airbag 38, the extrusion plate 39 can clamp the driver housings of different inner diameters, thereby improving the adaptability of the device, and there is no need to replace the corresponding size of the clamp for the driver housing of a specific size; After the driver housing is clamped and fixed, the robot arm 11 rotates the main body block 31 so that the main body block 31 rotates to the bottom of the driver housing, and then the controller controls the valve in the steam chamber to open, and then the high-pressure steam is transported to the steam groove 392 through the pipeline, and then the high-pressure steam is transported to the steam port 391 through the steam groove 392, and finally ejected through the steam port 391. Since the side of the extrusion plate 39 close to the inner wall of the driver housing is provided with an inclined surface, the high-pressure steam is ejected toward the inner wall of the driver housing and moves upward along the inner wall of the driver housing. Since the high-pressure steam has a strong impact force and thermal energy, the high-pressure steam can effectively remove impurities on the inner wall of the driver housing during the movement, and the high-temperature steam can increase the temperature, which helps to dissolve some organic matter, thereby achieving the effect of cleaning the inside of the driver housing; During the process of the steam port 391 spraying high-pressure steam, the controller controls the No. 2 air pump to start, and the No. 2 air pump extracts the high-pressure steam inside the driver housing. The high-pressure steam moves from the steam port 391 to the bottom of the driver housing, and then moves from the edge of the driver housing to the center of the driver housing. When the high-pressure steam flows to the side of the rotating column 40 close to the driver housing, the high-pressure steam enters the suction pipe 41 through the main air port 411 and the side air port 412, and is transported to the No. 2 air pump through the suction pipe 41, so that the high-pressure steam enters the steam chamber again to increase the temperature and pressure. After a period of cleaning, the controller closes the valve in the steam chamber, and then opens the solenoid valve in the blowing pipe 42, and the outside air extracted by the No. 1 air pump is transported to the blowing pipe 42, and then sprayed into the interior of the driver housing through the blowing pipe 42; During the process of external air being ejected, the controller controls the No. 3 micro motor to start, and the driving shaft of the No. 3 micro motor drives the driving gear 461 to rotate. When the driving gear 461 rotates, it meshes with the main gear 46, so that the driving gear 461 drives the main gear 46 to rotate, and then the upper rotating column 45 and the middle rotating column 44 are rotated. Through the rotation of the upper rotating column 45 and the middle rotating column 44, the blowing direction of the blowing pipe 42 is adjusted, so that the gas ejected from the blowing pipe 42 can blow away the water droplets remaining on the inner wall of the driver housing, and the water droplets are then transported to the impurity groove 371, and transported to the impurity chamber through the pipeline and stored. After the water droplets are blown away, the corrosion of the driver housing caused by the temporary retention of the water droplets is avoided, and the interference with the detection data during the curve detection is also avoided. When the driver housing is moved to the detection table 2, the ultrasonic flaw detection device is used to detect defects thereon.

[0027] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A device for detecting internal casting defects of a driver housing, characterized in that: The invention comprises a conveying device and a testing platform (2), wherein the conveying device is composed of a conveying belt and a mechanical arm (11), the testing platform (2) is provided with a defect detection device, the defect detection device is an ultrasonic flaw detection device, the mechanical arm (11) is arranged between the conveying belt and the testing platform (2), and the mechanical arm (11) is provided with a clamping assembly (3), and the clamping assembly (3) is used for transporting a driver housing.

2. The internal casting defect detection device of a driver housing according to claim 1, characterized in that: The clamping assembly (3) comprises a main body block (31), a plurality of clamping arms (32) are arranged around the main body block (31), and the plurality of clamping arms (32) are arranged around the axis of the main body block (31). The clamping arm (32) is composed of a fixing plate (33), a clamping plate (34) and a bottom supporting plate (35).

3. The internal casting defect detection device of a driver housing according to claim 2, characterized in that: The fixing plate (33) is connected to the main block (31); a clamping plate (34) is arranged at the bottom of the fixing plate (33); a No. 1 micro motor is arranged at the bottom of the fixing plate (33); a transmission shaft is arranged on the driving shaft of the No. 1 micro motor; the clamping plate (34) is rotatably connected to the fixing plate (33) via the transmission shaft; a bottom supporting plate (35) is arranged at the bottom of the clamping plate (34); a No. 2 micro motor is arranged at the bottom of the clamping plate (34); a rotating shaft is arranged on the driving shaft of the No. 2 micro motor; the bottom supporting plate (35) is rotatably connected to the clamping plate (34) via the transmission shaft.

4. The internal casting defect detection device of a driver housing according to claim 3, characterized in that: A rotating groove (341) is arranged on one side of the clamping plate (34) close to the axis of the main block (31), a rotating airbag (342) is arranged in the rotating groove (341), and an auxiliary plate (343) is arranged on the side of the rotating airbag (342) away from the rotating groove (341).

5. The internal casting defect detection device of a driver housing according to claim 4, characterized in that: A fixing group (36) is arranged at the bottom of the main body block (31), and the fixing group (36) is composed of a fixing block (37), an expansion airbag (38) and a plurality of extrusion plates (39). The fixing block (37) is located at the bottom of the main body block (31), and an expansion airbag (38) is arranged on a side of the fixing block (37) away from the axis of the main body block (31), and an extrusion plate (39) is arranged on a side of the expansion airbag (38) away from the fixing block (37). An air pump No. 1 is arranged outside the mechanical arm (11), and the air pump No. 1 is connected to the rotating airbag (342) and the expansion airbag (38) through pipelines.

6. The internal casting defect detection device of a driver housing according to claim 5, characterized in that: The extrusion plate (39) is provided with an inclined surface on one side away from the expansion airbag (38), the extrusion plate (39) is provided with a plurality of steam ports (391), and the plurality of steam ports (391) are arranged equidistantly along the side of the extrusion plate (39), the main body block (31) is provided with a steam groove (392), and the outside of the mechanical arm (11) is provided with a steam chamber, and the steam chamber is connected to the steam groove (392) through a pipeline.

7. The internal casting defect detection device of a driver housing according to claim 6, characterized in that: A rotating column (40) is arranged at the center of the fixed block (37), and an air suction pipe (41) is arranged at the center of the rotating column (40). A main air outlet (411) is arranged on the side of the air suction pipe (41) away from the fixed block (37). A plurality of blowing pipes (42) are arranged around the air suction pipe (41), and the plurality of blowing pipes (42) are arranged around the axis of the air suction pipe (41). A side air outlet (412) is arranged between the blowing pipe (42) and the main air outlet (411), and the side air outlet (412) is connected to the air suction pipe (41).

8. The internal casting defect detection device of a driver housing according to claim 7, characterized in that: The rotating column (40) is composed of a lower rotating column (43), a middle rotating column (44) and an upper rotating column (45); the lower rotating column (43) is connected to the fixed block (37); the middle rotating column (44) is located on a side of the lower rotating column (43) away from the fixed block (37); the upper rotating column (45) is located on a side of the middle rotating column (44) away from the lower rotating column (43); a main gear (46) is arranged on the top of the upper rotating column (45) and the middle rotating column (44); a No. 3 micro motor is arranged on the bottom of the middle rotating column (44) and the lower rotating column (43); a driving gear (461) is arranged on the driving shaft of the No. 3 micro motor; the driving gear (461) is meshed with the main gear (46).

9. The internal casting defect detection device of a driver housing according to claim 8, characterized in that: The blowing pipe (42) is connected to the No. 1 air pump through a pipeline, and a solenoid valve is arranged inside the blowing pipe (42). A No. 2 air pump is also arranged outside the mechanical arm (11). The suction pipe (41) is connected to the No. 2 air pump through a pipeline, and the No. 2 air pump is connected to the steam chamber through a pipeline. An impurity groove (371) is arranged on the fixed block (37), and an impurity chamber is arranged outside the mechanical arm (11). The impurity groove (371) is connected to the impurity chamber through a pipeline.

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