Aluminum die-casting surface defect detection device

Abstract

The invention discloses an aluminum die-casting surface defect detection device, and relates to the technical field of aluminum die-casting detection. Comprising a supporting host used for detecting a detection piece, a lifting push rod is fixedly connected to the lower side of the top of the supporting host, a suspension support instrument is fixedly connected to the movable end of the lower portion of the lifting push rod, and a second double-end hydraulic rod and a second suspension support are fixedly connected to the lower portion of the suspension support instrument; the movable ends of the two sides of the second double-end hydraulic rod are fixedly connected with a first detection support and a second detection support respectively, and the inner sides of the first detection support and the second detection support are fixedly connected to a translation assembly. A detection support is driven to move through a second double-end hydraulic rod, an ultrasonic detector is attached to the surface of a workpiece, in the moving process of a translation frame, a driving inclined table firstly pushes a coupling agent smearing opening to move forwards, a smearing roller makes contact with the workpiece to smear a coupling agent, then the ultrasonic detector is driven to move, and automatic coupling agent smearing in the detection process is achieved; the detection speed is ensured, and the waste of the coupling agent is reduced through a one-way smearing mechanism.

Description

Technical Field

[0001] This invention relates to the field of aluminum die casting inspection technology, and in particular to an aluminum die casting surface defect detection device. Background Technology

[0002] Surface defect detection in aluminum die casting is a key quality control technology specifically designed to identify and assess surface imperfections that arise during the manufacturing process. In aluminum die casting production, defects such as porosity, cracks, shrinkage marks, cold shuts, or burrs often occur due to material properties, mold design, or unstable process parameters. The detection process typically combines high-precision optical systems, machine vision algorithms, and sensor technology to scan the aluminum castings. Artificial intelligence is used to analyze the image data, automatically distinguishing between acceptable and defective products, ensuring that defects are efficiently marked and classified. This technology is widely used in production lines for automotive parts, electronic housings, and aerospace components, significantly improving product reliability and safety while reducing material waste and rework costs. Besides visual recognition, common detection methods also include ultrasonic testing.

[0003] A search revealed Chinese patent application CN119198913B, which discloses an ultrasonic flaw detection device for alloy die-castings. The device includes an operating table and an ultrasonic flaw detection main unit. The main unit is fixed on the operating table, and a flaw detection assembly is positioned above it. This assembly includes a movable frame, a mounting frame, an inclined plate, a detection probe, ball bearings, a crossbar, and a second spring. The mounting frame is located at the front of the movable frame. The aforementioned technology suffers from the problem that when the detection probe moves from the top to the bottom, it needs to be reset to the top before the next detection can be performed. It cannot perform detection during the probe's reciprocating movement in both directions, resulting in low detection efficiency. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a surface defect detection device for aluminum die casting.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A surface defect detection device for aluminum die casting includes a support host for detecting the test piece. A lifting push rod is fixedly connected to the lower top of the support host. A suspension bracket is fixedly connected to the movable end below the lifting push rod. A double-headed hydraulic rod and a second suspension bracket are fixedly connected below the suspension bracket. Detection bracket one and detection bracket two are fixedly connected to the movable ends on both sides of the double-headed hydraulic rod two, respectively. Detection bracket one and detection bracket two are fixedly connected to a translation component on their inner sides. A swing frame is slidably connected to one side of detection bracket two. An ultrasonic detector is fixedly connected to the inner side of the swing frame. Coupling agent application ports are slidably connected to both sides of the ultrasonic detector and the inner wall of the swing frame. A coupling agent box is fixedly connected to one end of the swing frame through a pipe. The coupling agent box is fixedly connected to the upper end of the swing frame. A coating roller is rotatably connected to one end of the coupling agent application port.

[0006] Preferably, the translation assembly includes a second drive shaft, a second synchronous pulley, a first drive wheel, translation rollers, and a drive belt. Multiple translation rollers are rotatably connected to the inner sides of the first and second detection brackets, and the translation rollers are connected to each other via a drive belt. The first drive wheel is fixedly connected to the rear side of one translation roller. The second synchronous pulley is rotatably connected to the upper ends of the first and second detection brackets, and the second synchronous pulley and the first drive wheel are connected via a belt drive. The motor end of the second drive shaft is fixedly connected to the second suspension bracket, and the inner side of the second synchronous pulley is slidably connected to one end of the rotating shaft of the second drive shaft.

[0007] Furthermore, the translation assembly also includes a translation drive stage and a translation frame, the translation frame being slidably connected to the inner side of detection bracket one and / or detection bracket two, one end of the translation drive stage being rotatably connected to the drive belt, and the other end of the translation drive stage being slidably connected to the inner side of the translation frame.

[0008] Furthermore: a driving ramp is fixedly connected to one end of the translational frame on one side of the second detection bracket. The driving ramp is slidably connected to the inside of the swing frame. Frame baffles are fixedly connected to both sides of the swing frame. An extension rod behind the coupling agent application port is rotatably connected to a squeezing roller. The squeezing roller is rotatably connected to both sides of the driving ramp.

[0009] As a preferred embodiment of the present invention: a double-headed hydraulic rod is fixedly connected to the lower part of the suspension bracket, and a clamping bracket is fixedly connected to the movable ends on both sides of the double-headed hydraulic rod. A synchronous wheel and a workpiece adjusting wheel are rotatably connected to the inner side of the clamping bracket. The synchronous wheel and the workpiece adjusting wheel are connected by belt drive. A drive shaft is rotatably connected to the lower part of the suspension bracket, and the inner sides of the synchronous wheels on both sides are slidably connected to the drive shaft.

[0010] As a further aspect of the present invention: a fixed bracket is fixedly connected to one end of the workpiece adjusting wheel, and a fixed motor is fixedly connected to one side of the fixed bracket.

[0011] As a further embodiment of the present invention: a turntable is fixedly connected to the power output end of the fixed motor, and multiple grippers are slidably connected to one side of the fixed bracket, with a connecting rod rotatably connecting the grippers and the turntable.

[0012] Based on the aforementioned scheme: a transmission component is fixedly connected to one side of the clamping bracket, the power output end of the transmission component is fixedly connected to the workpiece adjusting wheel, and a ratchet is fixedly connected to the power input end of the transmission component.

[0013] Based on the aforementioned scheme: ratchet brackets are fixedly connected to both sides of the translation frame, multiple driving ratchet teeth are rotatably connected to the inner side of the ratchet brackets, a spring is fixedly connected to the lower end of the turntable and the inner side of the ratchet brackets, and multiple limiting baffles are fixedly connected to the inner side of the ratchet brackets.

[0014] Based on the aforementioned scheme: a visual recognition component is fixedly connected to one end of the side translation frame of the detection bracket, and a shielding cover is fixedly connected to the front end of the visual recognition component.

[0015] The beneficial effects of this invention are as follows: A surface defect detection device for aluminum die casting uses a double-headed hydraulic rod to move the detection bracket, allowing the ultrasonic detector to fit against the workpiece surface. During the movement of the translation frame, the inclined platform first pushes the couplant application port forward, causing the application roller to contact the workpiece and apply the couplant. Subsequently, it moves the ultrasonic detector, realizing automatic couplant application during the detection process. This ensures the detection speed and reduces couplant waste through the unidirectional application mechanism.

[0016] A surface defect detection device for aluminum die castings uses a double-headed hydraulic rod to drive a clamping bracket inward, allowing the grippers to insert into holes on both sides of the workpiece. A fixed motor, via a linkage mechanism, pushes the grippers outward to fix the inner wall of the workpiece. A drive shaft rotates a workpiece adjustment wheel, adjusting the workpiece's detection position and enabling multi-angle rotation during detection. Combined with the translation of the ultrasonic detector, this achieves comprehensive coverage detection of the workpiece's outer wall.

[0017] An aluminum die-casting surface defect detection device uses a ratchet bracket at the end of a translation frame to cooperate with a ratchet mechanism. When the translation frame moves to the end of its stroke, it drives the ratchet to rotate the ratchet, which in turn drives the workpiece adjustment wheel to rotate intermittently through a transmission component, thus achieving automatic workpiece rotation. This eliminates the need for an additional drive device to adjust the workpiece position, improving the automation level and efficiency of the detection. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the main structure of an aluminum die-casting surface defect detection device proposed in this invention; Figure 2 This is a partial upper schematic diagram of an aluminum die-casting surface defect detection device proposed in this invention; Figure 3 This is a schematic diagram of the detection bracket structure of an aluminum die-casting surface defect detection device proposed in this invention; Figure 4 This is a schematic diagram of the translation frame installation structure of an aluminum die-casting surface defect detection device proposed in this invention; Figure 5 This invention provides an installation diagram of an ultrasonic testing instrument for detecting surface defects in aluminum die casting. Figure 1 ; Figure 6 This invention provides an installation diagram of an ultrasonic testing instrument for detecting surface defects in aluminum die casting. Figure 2 ; Figure 7 This is a schematic diagram of the rear side of the drive ramp of an aluminum die-casting surface defect detection device proposed in this invention; Figure 8 This is a schematic diagram of a partial ratchet structure of an aluminum die-casting surface defect detection device proposed in this invention; Figure 9 This is an exploded view of the clamping bracket of an aluminum die-casting surface defect detection device proposed in this invention.

[0019] Figure label: 1. Main unit support; 2. Detection component; 3. Lifting push rod; 4. Suspension bracket; 5. Double-headed hydraulic rod one; 6. Double-headed hydraulic rod two; 7. Detection bracket one; 8. Detection bracket two; 9. Clamping bracket; 10. Transmission assembly; 11. Ratchet; 12. Drive shaft one; 13. Synchronous pulley one; 14. Suspension bracket two; 15. Drive shaft two; 16. Synchronous pulley two; 17. Drive wheel one; 18. Translation roller; 19. Drive belt; 20. Vision recognition component; 21. 21. Masking cover; 22. Translation drive stage; 23. Translation frame; 24. Swing frame; 25. Ultrasonic detector; 26. Coupling agent application port; 27. Application roller; 28. Coupling agent box; 29. ​​Ratchet support; 30. Drive ratchet; 31. Drive ramp; 32. Frame baffle; 33. Extrusion roller; 34. Spring; 35. Limit baffle; 36. Workpiece adjusting wheel; 37. Fixed bracket; 38. Fixed motor; 39. Turntable; 40. Connecting rod; 41. Gripper. Detailed Implementation

[0020] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0021] The embodiments of this patent are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this patent, and should not be construed as limiting this patent.

[0022] A device for detecting surface defects in aluminum die casting, such as Figure 1 - Figure 9 As shown, the device includes a support host 1 for testing the test piece 2. The support host 1 has a control mechanism for controlling the operation of electronic components within the device and a component for wireless signal transmission on its lower side. The control principle here is based on current technology. The test piece 2 is transported via an external conveying component. When the test piece 2 moves to one side of the support host 1, it can be fixed and lifted for testing. A lifting push rod 3 is fixedly connected to the lower top of the support host 1. A suspension bracket 4 is fixedly connected to the movable end below the lifting push rod 3. A double-headed hydraulic rod 6 and a suspension bracket 14 are fixedly connected below the suspension bracket 4. The two movable ends of the double-headed hydraulic rod 6 are respectively fixedly connected to the detection bracket 7 and the detection bracket 8. The inner sides of the detection bracket 7 and the detection bracket 8 are fixedly connected to the translation component. The detection bracket 8 is slidably connected to one side of the swing frame 24. The ultrasonic detector 25 is fixedly connected to the inner side of the swing frame 24. The ultrasonic detector 25 and the inner wall of the swing frame 24 are slidably connected to the two sides of the ultrasonic detector 25 and the inner wall of the swing frame 24. The swing frame 24 is fixedly connected to one end of the coupling agent box 28 through the pipe. The coupling agent box 28 is fixedly connected to the upper end of the swing frame 24. The coupling agent box 26 is rotatably connected to one end of the coupling agent box 26. The translation assembly includes a second drive shaft 15, a second synchronous pulley 16, a first drive wheel 17, translation rollers 18, and a drive belt 19. Multiple translation rollers 18 are rotatably connected to the inner sides of the first detection bracket 7 and the second detection bracket 8, and the translation rollers 18 are connected to each other through the drive belt 19. The first drive wheel 17 is fixedly connected to the rear side of one translation roller 18. The second synchronous pulley 16 is rotatably connected to the upper end of the first detection bracket 7 and the second detection bracket 8, and the second synchronous pulley 16 and the first drive wheel 17 are connected through belt drive. The motor end of the second drive shaft 15 is fixedly connected to the second suspension bracket 14, and the inner side of the second synchronous pulley 16 is slidably connected to one end of the rotating shaft of the second drive shaft 15. The translation assembly also includes a translation drive stage 22 and a translation frame 23. The translation frame 23 is slidably connected to the inner side of the first detection bracket 7 and / or the second detection bracket 8. One end of the translation drive stage 22 is rotatably connected to the drive belt 19, and the other end of the translation drive stage 22 is slidably connected to the inner side of the translation frame 23. One end of the translation frame 23 on one side of the detection bracket 28 is fixedly connected to a driving ramp 31. The driving ramp 31 is slidably connected to the inside of the swing frame 24. Frame baffles 32 are fixedly connected to both sides of the swing frame 24. The extension rod behind the coupling agent application port 26 is rotatably connected to a squeezing roller 33. The squeezing roller 33 is rotatably connected to both sides of the driving ramp 31. During testing, the double-headed hydraulic rod 26 retracts, allowing the two side testing brackets 17 and 28 to move toward the test piece 2. At this time, the ultrasonic testing instrument 25 is placed against the outer wall of the test piece 2. Subsequently, when the motor end of the drive shaft 25 is working, it can drive the rotating shaft part with bosses at both ends to rotate. This can drive the synchronous wheel 26 to rotate, and then the synchronous wheel 26 can drive the drive wheel 17 below to rotate. This can drive the inner translation roller 18 to rotate, and then the drive belt 19 can drive the translation drive table 22 to move. In this way, during the rotation of the translation drive stage 22, the translation frame 23 can be translated around the detection bracket 7 and the detection bracket 8. During the movement of the translation frame 23 inside the second test bracket 8, the front drive ramp 31 will first move in the swing frame 24. This allows the front coupling agent application port 26 to move forward first by squeezing the roller 33, so that the application roller 27 at one end can fit against the outside of the test piece 2. The driving ramp 31, which continues to move, will collide with the frame baffle 32, causing the swing frame 24 and the coupling agent application port 26 and ultrasonic detector 25 inside it to move. This allows the application roller 27 in the coupling agent application port 26 at the front of the ultrasonic detector 25 to apply coupling agent to the surface of the test piece 2 when the ultrasonic detector 25 moves to one side, thereby improving the ultrasonic detection effect. Meanwhile, the application roller 27 at the rear of the ultrasonic detector 25, since it does not contact the surface of the test piece 2, avoids wasting coupling agent. This allows for the application of coupling agent during ultrasonic detection to improve the detection effect, while also reducing coupling agent waste. Furthermore, it allows the ultrasonic detector 25 to maintain detection during its reciprocating movement, thus improving detection efficiency. The application roller 27 can roll the coupling agent located in the coupling agent application port 26 onto the test piece 2 during rotation, while the coupling agent in the coupling agent box 28 can enter the coupling agent application port 26 through the pipe due to gravity.

[0023] like Figure 1 - Figure 9 As shown, a double-headed hydraulic rod 5 is fixedly connected to the lower part of the suspension bracket 4. A clamping bracket 9 is fixedly connected to the movable ends on both sides of the double-headed hydraulic rod 5. A synchronous wheel 13 and a workpiece adjusting wheel 36 are rotatably connected to the inner side of the clamping bracket 9. The synchronous wheel 13 and the workpiece adjusting wheel 36 are connected by belt drive. A drive shaft 12 is rotatably connected to the lower part of the suspension bracket 4. The inner sides of the synchronous wheels 13 on both sides are slidably connected to the drive shaft 12. One end of the workpiece adjusting wheel 36 is fixedly connected to a fixed bracket 37, and a fixed motor 38 is fixedly connected to one side of the fixed bracket 37. The fixed motor 38 has a turntable 39 fixedly connected to its power output end. A plurality of grippers 41 are slidably connected to one side of the fixed bracket 37. A connecting rod 40 is rotatably connected between the grippers 41 and the turntable 39. When it is necessary to clamp and fix the test piece 2, the electric lifting push rod 3 can be extended, so that the workpiece adjusting wheel 36 can be moved to both sides of the test piece 2. Then the double-headed hydraulic rod 5 retracts, so that the clamping brackets 9 on both sides can be moved inward, thereby allowing multiple jaws 41 to be inserted into the holes on both sides of the test piece 2. Then, the fixed motor 38 rotates, causing the turntable 39 to rotate. This allows the connecting rod 40 to drive the gripper 41 to move outward, squeezing and fixing the test piece 2 from the inside out. Subsequently, when the upper drive shaft 12 rotates, the two side bosses drive the synchronous wheel 13 to rotate, which in turn drives the workpiece adjusting wheel 36 to rotate, causing the inner test piece 2 to rotate. This allows the detection position of the ultrasonic detector 25 to be adjusted, thus enabling a comprehensive inspection of the outer wall of the test piece 2 while the ultrasonic detector 25 moves horizontally back and forth.

[0024] In this embodiment, during testing, the double-headed hydraulic rod 26 retracts, allowing the two side testing brackets 1 and 2 to move towards the test piece 2. At this time, the ultrasonic testing instrument 25 is brought into contact with the outer wall of the test piece 2. Subsequently, when the motor end of the drive shaft 2 15 is working, it can drive the rotating shaft part with bosses at both ends to rotate. This can drive the synchronous wheel 2 16 to rotate, and then the synchronous wheel 2 16 can drive the lower drive wheel 1 17 to rotate, which can drive the inner translation roller 18 to rotate. Then, the drive belt 19 can drive the translation drive stage 22 to move. In this way, during the rotation of the translation drive stage 22, the translation frame 23 can be translated around the detection bracket 7 and the detection bracket 8. During the movement of the translation frame 23 inside the second test bracket 8, the front drive ramp 31 will first move in the swing frame 24. This allows the front coupling agent application port 26 to move forward first by squeezing the roller 33, so that the application roller 27 at one end can fit against the outside of the test piece 2. The driving ramp 31, which continues to move, will collide with the frame baffle 32, causing the swing frame 24 and the coupling agent application port 26 and ultrasonic detector 25 inside it to move. This allows the application roller 27 in the coupling agent application port 26 at the front of the ultrasonic detector 25 to apply coupling agent to the surface of the test piece 2 when the ultrasonic detector 25 moves to one side, thereby improving the ultrasonic detection effect. Meanwhile, the application roller 27 at the rear of the ultrasonic detector 25, since it does not contact the surface of the test piece 2, avoids wasting coupling agent. This allows for the application of coupling agent during ultrasonic detection to improve the detection effect, while also reducing coupling agent waste. Furthermore, it allows the ultrasonic detector 25 to maintain detection during its reciprocating movement, thus improving detection efficiency. The application roller 27 can roll the coupling agent located in the coupling agent application port 26 onto the test piece 2 during rotation, while the coupling agent in the coupling agent box 28 can enter the coupling agent application port 26 through the pipe due to gravity; When it is necessary to clamp and fix the test piece 2, the electric lifting push rod 3 can be extended, so that the workpiece adjusting wheel 36 can be moved to both sides of the test piece 2. Then the double-headed hydraulic rod 5 retracts, so that the clamping brackets 9 on both sides can be moved inward, thereby allowing multiple jaws 41 to be inserted into the holes on both sides of the test piece 2. Then, the fixed motor 38 rotates, causing the turntable 39 to rotate. This allows the connecting rod 40 to drive the gripper 41 to move outward, squeezing and fixing the test piece 2 from the inside out. Subsequently, when the upper drive shaft 12 rotates, the two side bosses drive the synchronous wheel 13 to rotate, which in turn drives the workpiece adjusting wheel 36 to rotate, causing the inner test piece 2 to rotate. This allows the detection position of the ultrasonic detector 25 to be adjusted, thus enabling a comprehensive inspection of the outer wall of the test piece 2 while the ultrasonic detector 25 moves horizontally back and forth.

[0025] A transmission assembly 10 is fixedly connected to one side of the clamping bracket 9. The power output end of the transmission assembly 10 is fixedly connected to the workpiece adjusting wheel 36, and a ratchet 11 is fixedly connected to the power input end of the transmission assembly 10. There is a gear set inside the transmission assembly 10, which allows the ratchet 11 to drive the workpiece adjusting wheel 36 to rotate synchronously when it rotates. The translation frame 23 is fixedly connected to both sides of the ratchet bracket 29. Multiple driving ratchet teeth 30 are rotatably connected to the inside of the ratchet bracket 29. A spring 34 is fixedly connected to the lower end of the turntable 39 and the inside of the ratchet bracket 29. Multiple limit baffles 35 are fixedly connected to the inside of the ratchet bracket 29. When the translation frame 23 moves to one end, the drive ratchet 30 above the ratchet bracket 29 can engage the ratchet 11 to rotate, thereby causing the workpiece adjusting wheel 36 to drive the detection piece 2 to rotate at a certain angle. When the translation frame 23 moves in the reverse direction, the ratchet 30 will no longer drive the ratchet 11 to rotate in the reverse direction because there is no limit baffle 35 to restrict its rotation. This allows the inspection piece 2 to rotate as the translation frame 23 moves back and forth, enabling comprehensive inspection of the inspection piece 2.

[0026] like Figure 1 - Figure 9 As shown, a visual recognition component 20 is fixedly connected to one end of the translation frame 23 on one side of the detection bracket 7, and a shielding cover 21 is fixedly connected to the front end of the visual recognition component 20. The visual recognition component 20 is a CMOS image sensor that can perform high-precision image recognition and transmit the image to the host computer via the support host 1 for AI image recognition. It uses visual detection to detect surface defects of the inspection component 2, while the mask 21 can limit the detection area of ​​the visual recognition component 20 and reduce the impact of cluttered images on the detection effect.

[0027] The above description represents a preferred embodiment of the present invention. The scope of protection of the present invention is not limited thereto. Any modifications, equivalent substitutions, and improvements made by those skilled in the art within the scope of the technology disclosed in the present invention, combined with existing technology or common knowledge, and within the spirit and principles of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A surface defect detection device for aluminum die casting, comprising a support host (1) for detecting the test piece (2), characterized in that, The support host (1) is fixedly connected to the top and lower side of the lifting push rod (3). The lower movable end of the lifting push rod (3) is fixedly connected to the suspension bracket (4). The lower part of the suspension bracket (4) is fixedly connected to the double-headed hydraulic rod (6) and the suspension bracket (14). The movable ends of the double-headed hydraulic rod (6) are respectively fixedly connected to the detection bracket (7) and the detection bracket (8). The inner sides of the detection bracket (7) and the detection bracket (8) are fixedly connected to the translation component. The detection bracket (8) is slidably connected to one side of the swing frame (24). The inner side of the swing frame (24) is fixedly connected to the ultrasonic detector (25). The sides of the ultrasonic detector (25) and the inner wall of the swing frame (24) are slidably connected to the coupling agent application port (26). One end of the swing frame (24) is fixedly connected to the coupling agent box (28) through the pipe. The coupling agent box (28) is fixedly connected to the upper end of the swing frame (24). One end of the coupling agent application port (26) is rotatably connected to the application roller (27).

2. The aluminum die-casting surface defect detection device according to claim 1, characterized in that, The translation assembly includes a second drive shaft (15), a second synchronous wheel (16), a first drive wheel (17), a translation roller (18), and a drive belt (19). Multiple translation rollers (18) are rotatably connected to the inner sides of the first detection bracket (7) and the second detection bracket (8). The translation rollers (18) are connected to each other by the drive belt (19). The first drive wheel (17) is fixedly connected to the rear side of one translation roller (18). The second synchronous wheel (16) is rotatably connected to the upper end of the first detection bracket (7) and the second detection bracket (8). The second synchronous wheel (16) and the first drive wheel (17) are connected by the belt drive. The motor end of the second drive shaft (15) is fixedly connected to the second suspension bracket (14). The inner side of the second synchronous wheel (16) is slidably connected to one end of the rotating shaft of the second drive shaft (15).

3. The aluminum die-casting surface defect detection device according to claim 2, characterized in that, The translation assembly also includes a translation drive stage (22) and a translation frame (23). The translation frame (23) is slidably connected to the inner side of the first detection bracket (7) and / or the second detection bracket (8). One end of the translation drive stage (22) is rotatably connected to the drive belt (19), and the other end of the translation drive stage (22) is slidably connected to the inner side of the translation frame (23).

4. The aluminum die-casting surface defect detection device according to claim 3, characterized in that, One end of the translation frame (23) on one side of the detection bracket (8) is fixedly connected to a driving ramp (31). The driving ramp (31) is slidably connected to the inside of the swing frame (24). Frame baffles (32) are fixedly connected to both sides of the swing frame (24). The extension rod behind the coupling agent application port (26) is rotatably connected to a squeezing roller (33). The squeezing roller (33) is slidably connected to both sides of the driving ramp (31).

5. The aluminum die-casting surface defect detection device according to claim 1, characterized in that, The suspension bracket (4) is fixedly connected to a double-headed hydraulic rod (5) at its lower end. The movable ends of the double-headed hydraulic rod (5) are fixedly connected to a clamping bracket (9). The clamping bracket (9) is rotatably connected to a synchronous wheel (13) and a workpiece adjusting wheel (36) on its inner side. The synchronous wheel (13) and the workpiece adjusting wheel (36) are connected by a belt drive. The suspension bracket (4) is rotatably connected to a drive shaft (12) at its lower end. The synchronous wheels (13) on both sides are slidably connected to the drive shaft (12) on their inner sides.

6. The aluminum die-casting surface defect detection device according to claim 5, characterized in that, One end of the workpiece adjusting wheel (36) is fixedly connected to a fixed bracket (37), and a fixed motor (38) is fixedly connected to one side of the fixed bracket (37).

7. The aluminum die-casting surface defect detection device according to claim 6, characterized in that, The fixed motor (38) has a turntable (39) fixedly connected to its power output end. Multiple grippers (41) are slidably connected to one side of the fixed bracket (37). A connecting rod (40) is rotatably connected between the grippers (41) and the turntable (39).

8. The aluminum die-casting surface defect detection device according to claim 7, characterized in that, A transmission assembly (10) is fixedly connected to one side of the clamping bracket (9). The power output end of the transmission assembly (10) is fixedly connected to the workpiece adjusting wheel (36), and the power input end of the transmission assembly (10) is fixedly connected to a ratchet (11).

9. The aluminum die-casting surface defect detection device according to claim 4, characterized in that, The translation frame (23) is fixedly connected to both sides of a ratchet bracket (29), and multiple driving ratchet teeth (30) are rotatably connected to the inner side of the ratchet bracket (29). A spring (34) is fixedly connected to the lower end of the turntable (39) and the inner side of the ratchet bracket (29). Multiple limiting baffles (35) are fixedly connected to the inner side of the ratchet bracket (29).

10. The aluminum die-casting surface defect detection device according to claim 9, characterized in that, The detection bracket (7) has a visual recognition component (20) fixedly connected to one end of a translation frame (23), and a shield (21) fixedly connected to the front end of the visual recognition component (20).

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