A finishing device for an automobile casting

Abstract

The application belongs to the technical field of casting finishing, and particularly provides a finishing device for automobile castings, which comprises a rack provided with a conveying mechanism, and internally and externally burr detection devices, an internal hole burr processing device and an external burr processing device are arranged on the rack; the internally and externally burr detection devices each comprise an automatic clamp jaw and a detection sensor, the internal hole burr processing device comprises an automatic clamp jaw and a first driving motor, the first driving motor is connected with a first rotating shaft, an internal hole polishing rod is arranged at the end of the first rotating shaft, a fan blade is arranged on the first rotating shaft, and the fan blade is located in a first material collecting box which is arranged with an opening on one side; the external burr processing device comprises a movable automatic clamp jaw and a second driving motor, the second driving motor is connected with a second rotating shaft, an internal support rod is arranged at the end of the second rotating shaft, a second material collecting box is arranged below the internal support rod, and double-roller polishing rollers are arranged at the top of the second material collecting box. The device can automatically detect, remove and collect waste of the burrs on the internal hole and the outer surface of the castings, and can improve the processing quality and production efficiency.

Description

Technical Field

[0001] This invention relates to the field of precision machining technology for castings, and more particularly to a precision machining apparatus for automotive castings. Background Technology

[0002] After casting, automotive castings (such as hollow cylindrical parts) often develop burrs of varying degrees on their inner holes and outer surfaces. If these burrs are not effectively removed, they will affect subsequent assembly accuracy and performance. Currently, traditional methods for deburring automotive castings mostly involve manual hand-held grinding tools or semi-automatic equipment for individual processing. However, manual operation suffers from low efficiency, inconsistent processing quality, and high labor intensity. Furthermore, detecting and removing burrs from inner holes is difficult, making it hard to guarantee the smoothness of the inner wall.

[0003] Furthermore, some existing automated equipment often separates the deburring of internal holes and external surfaces into different workstations, resulting in a large equipment footprint and decreased workpiece positioning accuracy after multiple clamping operations. At the same time, the dust and waste generated during deburring lack effective collection devices, easily causing workshop environmental pollution and endangering the health of operators. Summary of the Invention

[0004] To address the aforementioned deficiencies, this invention provides a finishing device for automotive castings, which can automatically detect, remove, and collect burrs on the inner holes and outer surfaces of castings, thereby improving processing quality and production efficiency.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a precision machining device for automotive castings, comprising a frame, a conveying mechanism on the frame, and an internal burr detection device, an internal hole burr processing device, an external burr detection device, and an external burr processing device sequentially arranged on the frame along the conveying direction of the conveying mechanism.

[0006] The internal burr detection device includes a first automatic gripper located on one side of the conveying mechanism for clamping, and a first detection sensor for detecting the inner hole is located on the opposite side of the first automatic gripper.

[0007] The internal hole deburring device includes a second automatic gripper disposed on one side of the conveying mechanism for clamping, a movable first drive motor disposed on the opposite side of the second automatic gripper, a first rotating shaft fixedly connected to the output end of the first drive motor, an internal hole polishing rod disposed at the end of the first rotating shaft, a fan blade disposed at one end of the first rotating shaft near the internal hole polishing rod, the fan blade being located in a first collection box fixedly connected to the frame, the first collection box being open toward the side facing the internal hole polishing rod;

[0008] The external burr detection device includes: a third automatic gripper located on one side of the conveying mechanism for clamping, and a second detection sensor located on the opposite side of the third automatic gripper for scanning the outer surface of the workpiece.

[0009] The external burr processing device includes a fourth automatic gripper located on one side of the conveying mechanism for clamping. The fourth automatic gripper is mounted on a linear guide slider that can move along the conveying direction. A second drive motor is located on the opposite side of the fourth automatic gripper. A second rotating shaft is fixedly connected to the output end of the second drive motor. An inner support rod is provided at the end of the second rotating shaft. A second collection box with a top opening is provided below the inner support rod and above the conveying mechanism. A double-roll polishing roller is provided on the top of the second collection box.

[0010] As a further improvement of the present invention, the internal burr detection device further includes a first linear module and a first electric cylinder fixedly connected to the frame, the first automatic gripper being fixedly connected to the first electric slider of the first linear module, the first electric slider being slidably disposed on the first electric slide rail, and the first detection sensor being fixedly connected to the output end of the first electric cylinder.

[0011] As a further improvement of the present invention, the internal hole deburring device further includes a first movable plate, a first drive motor is fixedly connected to the first movable plate, both sides of the bottom of the first movable plate are fixedly connected to the first slider, the first slider is slidably connected to the first slide rail, and the first slide rail is fixedly connected to the frame.

[0012] As a further improvement of the present invention, the first collection box is provided with a feeding hole inside. The bottom of the feeding hole is inclined upward, and its top and sides are gradually widened towards the inner hole polishing rod. The first rotating shaft passes through the middle of the feeding hole, and the fan blades are arranged in a circumferential array inside the feeding hole along the first rotating shaft. The bottom inner side of the first collection box is provided with a discharge hole, which is connected to the waste bin through a pipeline.

[0013] As a further improvement of the present invention, the external burr detection device further includes a third linear module and a second electric cylinder fixedly connected to the frame, the third automatic gripper fixedly connected to the third electric slider of the third linear module, the third electric slider being slidably mounted on the third electric slide rail, and the second detection sensor fixedly connected to the output end of the second electric cylinder.

[0014] As a further improvement of the present invention, the external burr processing device further includes a second moving plate, the second drive motor is fixedly connected to the second moving plate, both sides of the bottom of the second moving plate are fixedly connected to the second slider, the second slider is slidably connected to the second slide rail, and the second slide rail is fixedly connected to the frame.

[0015] As a further improvement of the present invention, the external burr processing device further includes a fourth linear module, the fourth automatic gripper is fixedly connected to the fourth electric slider of the fourth linear module, the fourth electric slider is slidably disposed on the fourth electric slide rail, the fourth electric slide rail is fixedly connected to the linear guide slider, the linear guide slider is slidably disposed on the linear guide rail disposed along the movement direction of the conveying mechanism, and the linear guide rail is fixedly connected to the frame.

[0016] As a further improvement of the present invention, the bottom of the second collection box is inclined downward towards the end closer to the second drive motor, and a discharge hole is opened at its lowest point and connected to the waste bin through a pipeline.

[0017] As a further improvement of the present invention, the feed end of the frame is provided with a feeding rack, and the feeding rack is provided with a feeding plate with an arc-shaped feeding groove for placing hollow cylindrical workpieces.

[0018] As a further improvement of the present invention, the output end of the conveying mechanism is also provided with a material guiding mechanism. The material guiding mechanism includes two parallel transfer rollers. The transfer rollers are arranged on one side of the discharge end of the conveying mechanism and are arranged in the vertical direction of its operation. A push plate is arranged above the transfer rollers. The push plate is fixedly connected to the transfer slider. The transfer slider is slidably arranged on the transfer guide rail. The material guiding mechanism is matched with the discharge conveying mechanism.

[0019] The beneficial effects of this invention are:

[0020] 1. This application integrates multiple functional units, including feeding, internal burr detection, internal hole burr processing, external burr detection, external burr processing, and unloading, onto a single frame. A conveying mechanism enables automatic workpiece transfer between stations without manual intervention, significantly improving automation and production efficiency. In the internal hole processing device, the shaft section within the feeding hole of the first rotating shaft is equipped with fan blades. The rotation of the shaft itself generates negative pressure, drawing the powdery waste generated during grinding into the first collection box and then discharging it into a waste bin. In the external processing device, the bottom of the second collection box is inclined and has an outlet hole, allowing waste to be automatically collected and discharged. This structure achieves efficient dust collection during processing, avoiding environmental pollution and protecting the health of operators.

[0021] 2. A guiding mechanism is set at the output end of the conveying mechanism. The workpiece is received by the transfer roller and pushed smoothly to the discharge conveying mechanism by the transfer slider and push plate, realizing the automatic discharge of finished products and avoiding workpiece accumulation or jamming. Attached Figure Description

[0022] Figure 1 This is a first isometric schematic diagram of the precision machining device for automobile castings according to the present invention;

[0023] Figure 2 yes Figure 1 Enlarged diagram of point A in the diagram;

[0024] Figure 3 This is the second axonometric schematic diagram;

[0025] Figure 4 yes Figure 3 Enlarged diagram of point B in the image;

[0026] Figure 5 yes Figure 3 Enlarged diagram of point C in the diagram;

[0027] Figure 6 yes Figure 3 Enlarged diagram of point D in the diagram;

[0028] Figure 7 This is a schematic diagram of the internal hole deburring device.

[0029] Figure 8 This is a schematic diagram of the external burr processing device.

[0030] In the figure: 1-frame, 2-internal burr detection device, 201-first automatic gripper, 202-first electric slider, 203-first electric slide rail, 204-first detection sensor, 205-first electric cylinder;

[0031] 3-Conveying mechanism;

[0032] 4-Inner hole deburring device, 401-Second automatic gripper, 402-Second electric slider, 403-Second electric slide rail, 404-First drive motor, 405-First moving plate, 406-First slider, 407-First slide rail, 408-First rotating shaft, 409-Fan blade, 410-First collection box, 411-Feeding hole, 412-Inner hole polishing rod, 413-First waste bin;

[0033] 5-External burr detection device, 501-Third automatic gripper, 502-Third electric slider, 503-Third electric slide rail, 504-Second detection sensor, 505-Second electric cylinder;

[0034] 6-External burr processing device, 601-Linear guide rail, 602-Linear guide rail slider, 603-Fourth electric slide rail, 604-Fourth electric slider, 605-Fourth automatic gripper, 606-Second drive motor, 607-Second moving plate, 608-Second slider, 609-Second slide rail, 610-Second rotating shaft, 611-Inner support rod, 612-Second collection box, 613-Double roller polishing roller, 614-Second waste bin;

[0035] 7-Guiding mechanism, 701-First mounting block, 702-Transfer roller, 703-Push plate, 704-Transfer slider, 705-Transfer guide rail, 706-Second mounting block;

[0036] 8-Discharge conveying mechanism;

[0037] 9-Feeding rack, 901-Placing plate, 902-Placing trough. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific examples described herein are merely illustrative and not intended to limit the invention. The directional terms used in the following embodiments, such as up, down, left, right, front, or back, are only for reference to the directions in the accompanying drawings. Therefore, the directional terms used are for illustrative purposes and not for limiting the invention. Furthermore, in all embodiments, the same reference numerals denote the same elements.

[0039] Please see Figure 1 and Figure 2 This invention provides a precision machining device for automotive castings, including a frame 1, on which a conveying mechanism 3 is mounted. A feeding rack 9 is fixedly connected to the feeding end of the conveying mechanism 3 on the frame 1. A placing plate 901 is fixedly connected to the feeding rack 9. Several arc-shaped placing grooves 902 are formed on the upper edge of the placing plate 901, and hollow cylindrical workpieces are placed in the placing grooves 902.

[0040] Please see Figure 1 , Figure 3 and Figure 4 An internal burr detection device 2 is provided on one end of the frame 1 near the loading rack 9. The internal burr detection device 2 includes: a first automatic gripper 201 disposed on one side of the conveying mechanism 3. The side of the first automatic gripper 201 away from the gripping end is fixedly connected to the first electric slider 202 of the first linear module. The first electric slider 202 is slidably disposed on the first electric slide rail 203. The first electric slide rail 203 is vertically fixedly connected to the loading rack 9.

[0041] A first detection sensor 204 is provided on the opposite side of the first automatic gripper 201, and the first detection sensor 204 is fixedly connected to the output end of the first electric cylinder 205. The output end of the first electric cylinder 205 faces the first automatic gripper 201, and the first electric cylinder 205 is fixedly connected to the frame 1.

[0042] As a further explanation of this embodiment, the first electric slider 202 descends along the first electric slide rail 203, the first automatic gripper 201 grips the workpiece on the conveying mechanism 3, and then lifts it up through the first electric slider 202. The first detection sensor 204 is driven by the first electric cylinder 205 to enter the inner hole of the workpiece to detect the burrs in the inner hole.

[0043] Please see Figure 1 and Figure 7 An internal hole burr processing device 4 is provided on the side of the internal burr detection device 2 away from the loading rack 9 on the frame 1. The internal hole burr processing device 4 includes: a second automatic gripper 401 located on the same side as the first automatic gripper 201. The side of the second automatic gripper 401 away from the gripping end is fixedly connected to the second electric slider 402 of the second linear module. The second electric slider 402 is slidably mounted on the second electric slide rail 403. The second electric slide rail 403 is vertically fixedly connected to the loading rack 9.

[0044] A first drive motor 404 is provided on the opposite side of the second automatic gripper 401. The output end of the first drive motor 404 is fixedly connected to a first rotating shaft 408, which is rotatably connected to a bearing seat. Both the first drive motor 404 and the bearing seat are fixedly connected to a first moving plate 405. The bottom sides of the first moving plate 405 are fixedly connected to a first slider 406. The first slider 406 is slidably connected to a first slide rail 407, which is fixedly connected to the frame 1.

[0045] An inner hole polishing rod 412 is fixedly connected to one end of the first rotating shaft 408 away from the first drive motor 404. A first collection box 410 is fixedly connected to the side of the frame 1 near the inner hole polishing rod 412. The first collection box 410 has a feeding hole 411 inside. The bottom of the feeding hole 411 is inclined upward, and its top and sides are gradually widened towards the inner hole polishing rod 412. The first rotating shaft 408 passes through the middle of the feeding hole 411 of the first collection box 410 and is rotatably connected to it. The shaft section of the first rotating shaft 408 located in the feeding hole 411 is provided with a plurality of fan blades 409, which are arranged in a circumferential array along the first rotating shaft 408.

[0046] The bottom inner side of the first collection box 410 has a discharge hole, which is connected to the first waste box 413 through a pipeline.

[0047] As a further explanation of this embodiment, when the workpiece is conveyed to the internal hole deburring device 4 station, the second electric slide rail 403 drives the second electric slider 402 to move downward, and the second automatic gripper 401 clamps the workpiece on the conveying mechanism 3; then the first slider 406 moves along the first slide rail 407, so that the internal hole polishing rod 412 extends into the internal hole of the workpiece. The first drive motor 404 starts to run, and the internal hole polishing rod 412 polishes the internal hole of the workpiece. The polishing time and speed are adaptively set according to the degree of burrs detected by the first detection sensor 204. After polishing is completed, the first slider 406 moves back along the first slide rail 407, so that the internal hole polishing rod 412 exits the workpiece; thereafter, the first rotating shaft 408 continues to rotate, and the fan blade 409 on it rotates at high speed to form a negative pressure inside the first collection box 410, sucking out the powdery waste generated by grinding, and then exporting it from the discharge hole at the bottom of the first collection box 410 into the first waste bin 413.

[0048] Please see Figure 1 , Figure 3 and Figure 5 An external burr detection device 5 is provided on the side of the internal hole burr processing device 4 away from the internal burr detection device 2 on the frame 1. The internal burr detection device 2 includes: a third automatic gripper 501 located on the same side as the first automatic gripper 201. The side of the third automatic gripper 501 away from the gripping end is fixedly connected to the third electric slider 502 of the third linear module. The third electric slider 502 is slidably mounted on the third electric slide rail 503. The third electric slide rail 503 is vertically fixedly connected to the loading rack 9.

[0049] A second detection sensor 504 is provided on the opposite side of the third automatic gripper 501, and the second detection sensor 504 is fixedly connected to the output end of the second electric cylinder 505. The output end of the second electric cylinder 505 faces the side of the third automatic gripper 501, and the second electric cylinder 505 is fixedly connected to the frame 1.

[0050] As a further explanation of this embodiment, the third electric slider 502 descends along the third electric slide rail 503, the third automatic gripper 501 grips the workpiece on the conveying mechanism 3, and then lifts it up through the third electric slider 502. The second detection sensor 504 is driven by the second electric cylinder 505 to scan the outer surface of the workpiece to detect the burrs on the outer surface of the workpiece. After detection, it is returned to the conveying mechanism 3.

[0051] Please see Figure 1 and Figure 8An external burr processing device 6 is provided on the side of the frame 1 away from the internal hole burr processing device 4, opposite to the external burr detection device 5. The external burr processing device 6 includes a fourth automatic gripper 605 located on the same side as the first automatic gripper 201. The side of the fourth automatic gripper 605 away from the gripping end is fixedly connected to the fourth electric slider 604 of the fourth linear module. The fourth electric slider 604 is slidably mounted on the fourth electric slide rail 603, which is vertically fixedly connected to the top of the linear guide slider 602. The linear guide slider 602 is slidably connected to the linear guide rail 601. The linear guide rail 601 is fixedly connected to the frame 1 and is positioned along the movement direction of the conveying mechanism 3.

[0052] A second drive motor 606 is located on the opposite side of the fourth automatic gripper 605. The output end of the second drive motor 606 is fixedly connected to a second rotating shaft 610, which is rotatably connected to a bearing housing. Both the second drive motor 606 and the bearing housing are fixedly connected to a second moving plate 607. The bottom sides of the second moving plate 607 are fixedly connected to second sliders 608. The second sliders 608 are slidably connected to a second slide rail 609, which is fixedly connected to the frame 1.

[0053] An inner support rod 611 is fixedly connected to the side of the second rotating shaft 610 away from the second drive motor 606. A second collection box 612 is located below the inner support rod 611 and above the conveying mechanism 3. The second collection box 612 is fixedly connected to the frame, with its side closest to the second drive motor 606 located outside the conveying mechanism 3. The bottom of the second collection box 612 is inclined downwards towards this side. A discharge hole is provided at the lowest point of the second collection box 612, and the discharge hole is connected to the second waste bin 614 via a pipe. A double-roll polishing roller 613 is fixedly connected to the top of the second collection box 612.

[0054] As a further explanation of this embodiment, the linear guide slider 602 moves along the linear guide 601 to the side close to the external burr detection device 5; subsequently, the fourth electric slider 604 descends along the fourth electric slide rail 603, and the fourth automatic gripper 605 clamps the workpiece whose outer surface burr detection has been completed. After clamping, the fourth electric slider 604 rises, and the linear guide slider 602 drives the workpiece to move along the linear guide 601 to the double-roll polishing roller 613, and the fourth electric slider 604 descends again. The second slider 608 moves along the second slide rail 609, so that the inner support rod 611 enters the inner hole of the workpiece and is tensioned and fixed. The second drive motor 606 is started, and the second rotating shaft 610 drives the workpiece to rotate. The rotating workpiece contacts the double-roll polishing roller 613, thereby realizing the deburring of the outer surface. After processing is completed, the fourth automatic gripper 605 rises and then moves to the side away from the external burr detection device 5, and is placed back on the conveying mechanism 3.

[0055] During the deburring process, the generated powdery waste falls into the second collection box 612 and gathers along the bottom slope of the box to a lower position. Finally, it is discharged from the discharge hole at the lowest point through the pipeline to the second waste bin 614.

[0056] Please see Figure 1 , Figure 3 and Figure 6 A material guiding mechanism 7 is provided on one side of the output end of the conveying mechanism 3 on the frame 1. The material guiding mechanism 7 includes two parallel transfer rollers 702. The transfer rollers 702 are arranged in the vertical direction (i.e., transverse direction) of the conveyor belt. One end of the transfer guide rail 705 is fixedly connected to the first mounting block 701, and the bottom of its other end is supported on the second mounting block 706; both the first mounting block 701 and the second mounting block 706 are fixedly mounted on the frame 1.

[0057] A transfer guide rail 705 is provided on the side of the transfer roller 702 away from the external burr processing device 6. A transfer slider 704 is slidably mounted on the transfer guide rail 705, and a push plate 703 is fixedly connected to the top of the transfer slider 704. A discharge conveying mechanism 8 is provided on the side of the frame 1 near the second mounting block 706, and the discharge conveying mechanism 8 is matched with the transfer roller 702.

[0058] As a further explanation of this embodiment, the workpieces that have undergone internal and external deburring are conveyed to their output end via the conveying mechanism 3, and then fall between the two transfer rollers 702. Next, the transfer slider 704 moves along the transfer guide rail 705, driving the push plate 703 to push the workpiece onto the discharge conveying mechanism 8, which then transports the workpiece to the next station.

[0059] The working principle and usage process of this embodiment are as follows:

[0060] The hollow cylindrical workpieces to be processed are placed on the material placement plate 901 of the loading rack 9, and the workpieces are arranged sequentially in the arc-shaped material placement groove 902. The conveying mechanism 3 is started to place the workpieces from the loading rack 9 onto the conveying mechanism 3.

[0061] When the workpiece is conveyed to the internal burr detection device 2 station, the first automatic gripper 201 grips the workpiece on the conveying mechanism 3, and the first detection sensor 204 moves towards the workpiece, allowing it to enter the inner hole of the workpiece to detect the burrs in the inner hole. After the detection is completed, the first detection sensor 204 retracts, and the first automatic gripper 201 returns the workpiece to the conveying mechanism 3.

[0062] The workpiece that has completed the internal hole inspection is moved to the internal hole deburring device 4 station by the conveying mechanism 3. The second automatic gripper 401 picks up the workpiece from the conveying mechanism 3. The first slider 406 moves along the first slide rail 407 toward the workpiece, causing the internal hole polishing rod 412 at the front end of the first rotating shaft 408 to extend into the internal hole of the workpiece. The first drive motor 404 starts, driving the internal hole polishing rod 412 to rotate and polish the internal hole of the workpiece. The polishing time and speed are adaptively set according to the degree of burr measured by the first detection sensor 204.

[0063] During the polishing process, the fan blades 409 on the first rotating shaft 408 rotate at high speed along the shaft, forming a negative pressure inside the first collection box 410, which draws the powdery waste generated during polishing into the feeding hole 411. After polishing is completed, the first slider 406 moves back to make the inner hole polishing rod 412 exit the workpiece, and the second automatic gripper 401 puts the workpiece back into the conveying mechanism 3.

[0064] The workpiece with the inner hole machined is moved by the conveyor mechanism 3 to the external burr detection device 5. The third automatic gripper 501 picks up the workpiece from the conveyor mechanism 3 and lifts it. The second detection sensor 504 moves toward the workpiece to scan and detect the outer surface of the workpiece, and determines the burr condition of the outer surface. After the detection is completed, the third automatic gripper 501 puts the workpiece back into the conveyor mechanism 3.

[0065] The workpiece that has completed external inspection is moved by the conveyor mechanism 3 to the external burr processing device 6. The linear guide slider 602 moves along the linear guide 601 to the side close to the external burr detection device 5, and the fourth automatic gripper 605 clamps the workpiece on the conveyor mechanism 3. After clamping, the linear guide slider 602 drives the workpiece to move along the linear guide 601 to the double-roll polishing roller 613. The second slider 608 moves along the second slide rail 609, so that the inner support rod 611 enters the inner hole of the workpiece and is tensioned and fixed. The second drive motor 606 is started, and the second rotating shaft 610 drives the workpiece to rotate. The rotating workpiece contacts the double-roll polishing roller 613 to achieve deburring of the outer surface.

[0066] The powdery waste generated during the deburring process falls into the second collection box 612, collects along the inclined bottom of the box, and is finally discharged from the lowest discharge hole through the pipeline to the waste bin. After processing is completed, the fourth automatic gripper 605 is raised, and the linear guide slider 602 drives the workpiece to the side away from the external burr detection device 5, and puts the workpiece back into the conveying mechanism 3.

[0067] The workpiece, having undergone complete deburring both internally and externally, is conveyed by the conveying mechanism 3 to its output end, and then falls between the two transfer rollers 702. The transfer slider 704 moves along the transfer guide rail 705, driving the push plate 703 to push the workpiece from the transfer rollers 702 to the discharge conveying mechanism 8, which then transports the finished workpiece to the next station.

[0068] The above are merely preferred embodiments of the present invention. The scope of protection of the present invention is not limited to the above-described embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A finishing apparatus for automotive castings, characterized in that, Includes a frame (1), on which a conveying mechanism (3) is provided, and on which an internal burr detection device (2), an internal hole burr processing device (4), an external burr detection device (5), and an external burr processing device (6) are sequentially arranged along the conveying direction of the conveying mechanism (3); The internal burr detection device (2) includes a first automatic gripper (201) disposed on one side of the conveying mechanism (3) for clamping, and a first detection sensor (204) for detecting the inner hole is disposed on the opposite side of the first automatic gripper (201). The internal hole deburring device (4) includes a second automatic gripper (401) disposed on one side of the conveying mechanism (3) for clamping. A movable first drive motor (404) is disposed on the opposite side of the second automatic gripper (401). A first rotating shaft (408) is fixedly connected to the output end of the first drive motor (404). An internal hole polishing rod (412) is disposed at the end of the first rotating shaft (408). A fan blade (409) is disposed at one end of the first rotating shaft (408) near the internal hole polishing rod (412). The fan blade (409) is located in a first collection box (410) fixedly connected to the frame (1). The first collection box (410) is open on the side facing the internal hole polishing rod (412). The external burr detection device (5) includes: a third automatic gripper (501) disposed on one side of the conveying mechanism (3) for clamping, and a second detection sensor (504) for scanning the outer surface of the workpiece is disposed on the opposite side of the third automatic gripper (501). The external burr processing device (6) includes a fourth automatic gripper (605) located on one side of the conveying mechanism (3) for clamping. The fourth automatic gripper (605) is mounted on a linear guide slider (602) that can move along the conveying direction. A second drive motor (606) is provided on the opposite side of the fourth automatic gripper (605). A second rotating shaft (610) is fixedly connected to the output end of the second drive motor (606). An inner support rod (611) is provided at the end of the second rotating shaft (610). A second collection box (612) with a top opening is provided below the inner support rod (611) and above the conveying mechanism (3). A double-roll polishing roller (613) is provided on the top of the second collection box (612).

2. The finishing apparatus for automobile castings according to claim 1, characterized in that, The internal burr detection device (2) further includes a first linear module and a first electric cylinder (205) fixedly connected to the frame (1). The first automatic gripper (201) is fixedly connected to the first electric slider (202) of the first linear module. The first electric slider (202) is slidably arranged on the first electric slide rail (203). The first detection sensor (204) is fixedly connected to the output end of the first electric cylinder (205).

3. The finishing apparatus for automobile castings according to claim 1, characterized in that, The internal hole burr processing device (4) further includes a first moving plate (405), a first drive motor (404) is fixedly connected to the first moving plate (405), the bottom sides of the first moving plate (405) are fixedly connected to the first slider (406), the first slider (406) is slidably connected to the first slide rail (407), and the first slide rail (407) is fixedly connected to the frame (1).

4. The finishing apparatus for automobile castings according to claim 1, characterized in that, The first collection box (410) is provided with a feeding hole (411) inside. The bottom of the feeding hole (411) is inclined upward, and its top and sides are gradually widened towards the inner hole polishing rod (412). The first rotating shaft (408) passes through the middle of the feeding hole (411). The fan blades (409) are arranged in a circumferential array in the feeding hole (411) along the first rotating shaft (408). The bottom inner side of the first collection box (410) is provided with a discharge hole, which is connected to the waste bin through a pipeline.

5. The finishing apparatus for automobile castings according to claim 1, characterized in that, The external burr detection device (5) further includes a third linear module and a second electric cylinder (505) fixedly connected to the frame (1). The third automatic gripper (501) is fixedly connected to the third electric slider (502) of the third linear module. The third electric slider (502) is slidably mounted on the third electric slide rail (503). The second detection sensor (504) is fixedly connected to the output end of the second electric cylinder (505).

6. The finishing apparatus for automobile castings according to claim 1, characterized in that, The external burr processing device (6) further includes a second moving plate (607), a second drive motor (606) is fixedly connected to the second moving plate (607), the bottom sides of the second moving plate (607) are fixedly connected to the second slider (608), the second slider (608) is slidably connected to the second slide rail (609), and the second slide rail (609) is fixedly connected to the frame (1).

7. The finishing apparatus for automobile castings according to claim 6, characterized in that, The external burr processing device (6) further includes a fourth linear module. The fourth automatic gripper (605) is fixedly connected to the fourth electric slider (604) of the fourth linear module. The fourth electric slider (604) is slidably mounted on the fourth electric slide rail (603). The fourth electric slide rail (603) is fixedly connected to the linear guide slider (602). The linear guide slider (602) is slidably mounted on the linear guide rail (601) along the movement direction of the conveying mechanism (3). The linear guide rail (601) is fixedly connected to the frame (1).

8. The finishing apparatus for automobile castings according to claim 1, characterized in that, The bottom of the second collection box (612) is inclined downward towards the end near the second drive motor (606), and a discharge hole is opened at its lowest point and connected to the waste bin through a pipeline.

9. The finishing apparatus for automobile castings according to claim 1, characterized in that, The feed end of the frame (1) is provided with a feeding rack (9), and the feeding rack (9) is provided with a feeding plate (901) with an arc-shaped feeding groove (902) for placing hollow cylindrical workpieces.

10. The finishing apparatus for automobile castings according to claim 1, characterized in that, The output end of the conveying mechanism (3) is also provided with a material guiding mechanism (7). The material guiding mechanism (7) includes two parallel transfer rollers (702). The transfer rollers (702) are arranged on one side of the discharge end of the conveying mechanism (3) and arranged along the vertical direction of its operation. A push plate (703) is arranged above the transfer rollers (702). The push plate (703) is fixedly connected to the transfer slider (704). The transfer slider (704) is slidably arranged on the transfer guide rail (705). The material guiding mechanism (7) is matched with the discharge conveying mechanism (8).

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