A high-efficiency shot blasting machine for workpiece machining

Abstract

The application relates to a high-efficiency shot blasting machine for workpiece machining, and relates to the technical field of metal surface treatment equipment, and comprises a rack, a shot blasting chamber, a storage bin and a controller. A machining inner chamber is arranged in the shot blasting chamber. The machining inner chamber comprises an inner cavity cover. The inner cavity cover is driven to ascend and descend by a gas cylinder and surrounds a treatment cavity with a bottom wall of the shot blasting chamber. A motion mechanism is arranged on the top side of the inner cavity cover. The motion mechanism is connected with a shot blasting machine body. The shot blasting machine body is connected with an external storage bin through a hose. The motion mechanism comprises a position adjusting structure and an arc rail swinging structure. The shot blasting machine body can be driven to realize horizontal rotation, radial translation, vertical lifting, arc swinging and multi-angle adjustment. A visual scanning unit is arranged on the inner wall of the inner cavity cover and is used for acquiring workpiece shape data. The inner cavity cover can be lifted, and the inner cavity cover is combined with a multi-shaft motion mechanism. A shot stream can cover all surfaces of a workpiece at an optimal incident angle. Dead angles are eliminated, dust escape is inhibited, the structure is compact, the flexible adaptability is high, and the shot blasting machine is suitable for precise shot blasting operation of complex curved surface workpieces.

Description

Technical Field

[0001] This application relates to the technical field of metal surface treatment equipment, and in particular to a high-efficiency shot blasting machine for workpiece processing. Background Technology

[0002] Shot blasting machines are commonly used surface treatment equipment that uses a high-speed rotating shot blaster to propel shot onto the surface of a workpiece to achieve purposes such as rust removal, oxide scale removal, cleaning, or strengthening. As the manufacturing industry continues to increase its requirements for the surface quality of parts, shot blasting has evolved from simple surface cleaning to precision strengthening treatment, which places higher demands on the equipment's processing uniformity, coverage, dust removal effect, and flexibility.

[0003] In the prior art, utility model patent application number CN201920546044.2 discloses a rotary table shot blasting machine, including a base, a support, a fixed seat, a shot blaster, a processing device, and a cleaning device. This rotary table shot blasting machine, by setting the processing device on the top of the base, allows the workpiece to rotate and move laterally during processing, so as to process multiple sides of the workpiece, eliminating the trouble of frequent manual face changing. At the same time, by setting the cleaning devices on both sides of the top of the base, dust is sucked into the dust collection box by the dust suction head, and then water is sprayed by the water pump and nozzle for dust suppression, realizing automatic cleaning of dust during processing.

[0004] However, existing shot blasting machines are usually fixed installations with a single shot beam direction. Relying solely on workpiece rotation and lateral movement makes it difficult to eliminate dead zones in the processing of complex curved surfaces. Furthermore, the processing area is mostly in an open environment, resulting in low dust collection efficiency and the possibility of some dust escaping. Water spraying for dust suppression increases wastewater treatment costs and affects the drying performance of the shot recovery system. In addition, tooling needs to be readjusted when workpiece specifications change, and the equipment's flexibility and adaptability are limited, making it difficult to meet the production needs of multiple varieties and small batches. Summary of the Invention

[0005] The purpose of this application is to provide a high-efficiency shot blasting machine for workpiece processing to solve the problems in the prior art.

[0006] This application provides a high-efficiency shot blasting machine for workpiece processing, which adopts the following technical solution: it includes a frame, a shot blasting chamber locked on the top side of the frame, a hollow groove opened on the bottom side of the shot blasting chamber, and a bucket-shaped cover fixed on the outer periphery of the bottom of the shot blasting chamber. A cover plate is inserted into the bottom front part of the bucket-shaped cover. A chamber door is hinged to both the left and right sides of the front part of the shot blasting chamber. A storage bin for loading shot is provided on the right rear side of the shot blasting chamber. A controller is provided on the left front part of the shot blasting chamber. A processing chamber is installed on the upper middle side of the shot blasting chamber. The processing chamber includes an inner cavity cover. A carrier plate is fixedly wrapped around the upper part of the outer periphery of the inner cavity cover. A cylinder is connected to the top left and right sides of the top of the carrier plate, and the two cylinders are installed on the top side of the inner wall of the shot blasting chamber. A dust suction port is provided on the right side of the inner cavity cover. A vision scanning unit is provided on the lower middle side of the inner wall of the inner cavity cover. A motion mechanism is fixedly installed on the top side of the inner cavity cover. The bottom side of the motion mechanism is connected to the shot blasting body, which is used to drive the shot blasting body to perform multi-directional displacement movements. A hose for conveying shot is connected to the top side of the shot blasting body, and the hose passes through the top side of the inner cavity cover. The end of the hose away from the shot blasting body is connected to the storage bin.

[0007] Preferably, there are two visual scanning units, which are respectively connected to the left and right side walls of the inner cavity cover.

[0008] Preferably, the motion mechanism includes a support platform that is fastened to the top side of the inner cavity cover. A drive motor is locked and fixed to the middle side of the top of the support platform. An adjustment structure is connected to the bottom output end of the drive motor, and the adjustment structure is rotatably connected to the middle side of the bottom of the support platform. A servo motor is connected to the right side of the adjustment structure, and an outer cylinder column is fixed to the side of the adjustment structure away from the servo motor. A stepper motor is locked and fixed to the top of the outer cylinder column. A first screw is connected to the bottom output end of the stepper motor, and the first screw is longitudinally arranged in the middle of the inner side of the outer cylinder column. An internal threaded ring is threaded to the outer surface of the first screw, and the internal threaded ring is embedded and fixed to the middle side of the top of the inner cylinder. The inner cylinder slides longitudinally inside the outer cylinder column. An arc rail structure is installed at the bottom of the inner cylinder through a connecting block. A swing structure is fastened to the side of the arc rail structure away from the inner wall of the inner cavity cover, and the inner side of the swing structure is fastened to the shot blasting machine body.

[0009] Preferably, a triangular bracket is fixedly installed on the right side of the outer cylinder column, and the top of the triangular bracket away from the outer cylinder column is fastened to the adjustment structure.

[0010] Preferably, the adjustment structure includes a turntable connected to the bottom output end of a drive motor at its top center. A slot is fixedly connected to the bottom of the turntable. A second screw is horizontally arranged inside the center of the slot. An internally threaded slider is threadedly connected to the outer surface of the second screw. The right side of the second screw is connected to the left output end of a servo motor. The internally threaded slider is inserted and slides inside the lower center of the slot. A guide rod frame is tightly fixed to the bottom of the internally threaded slider. A sliding sleeve seat is wrapped around the outer surface of the guide rod frame. The side of the guide rod frame away from the internally threaded slider is fixed to the outer cylinder. An auxiliary support block is fixedly connected to the top of the sliding sleeve seat. The upper and lower parts of the auxiliary support block away from the outer cylinder are fixed to the turntable and the slot, respectively.

[0011] Preferably, the guide rod frame is rectangular, consisting of two long sides formed by two columnar rods and two short sides formed by two rectangular blocks, and the sliding sleeve seat wraps around and slides on the outer surface of the two columnar rods.

[0012] Preferably, the arc track structure includes a vertical plate whose top side is fastened to the connecting block. The upper and lower parts of the vertical plate away from the inner cavity cover are respectively fixed with an upper frame and a lower frame, and a first motor is locked and fixed in the middle. The top output end of the first motor is connected to a remote rod. The top of the remote rod is rotatably connected to a slider away from the first motor. The top side of the slider is inserted into and slides inside the cross slot frame. The top middle side of the cross slot frame is slidably connected to the upper frame. The upper right side of the outer surface of the cross slot frame is wrapped with a push rod sleeve. The right end of the push rod sleeve is rotatably connected to a first arc-shaped block. The first arc-shaped block is wrapped and slides on the right side of the upper frame, and a carrier block is fixed to the right side of the first arc-shaped block. A second arc-shaped block is fixed to the bottom left side of the carrier block. The second arc-shaped block is wrapped and slides on the right side of the lower frame. The right side of the carrier block is fastened to the swing structure.

[0013] Preferably, an arc-shaped strip is provided on the right side of both the upper frame and the lower frame, and a slot is opened on the bottom side of the middle part of the upper frame, and the upper part of the cross slot frame is inserted and slidably inserted into the inner side of the slot.

[0014] Preferably, the swing structure includes a platform fixed to the left side of the carrier block, an integrally formed mounting frame on the side of the platform away from the carrier block, a second motor locked to the top of the mounting frame, a U-shaped rod connected to the bottom output end of the second motor, a third motor locked to the rear side of the mounting frame, a first inclined rod connected to the front output end of the third motor, a second inclined rod rotatably connected to the end of the first inclined rod away from the third motor, a second inclined rod rotatably connected to the bottom of the collar, the front and rear sides of the collar rotatably connected to the inside of the U-shaped rod, and the inner side of the collar being tightly fitted to the shot blasting machine body.

[0015] Preferably, both the first and second inclined rods are in the shape of an arc, and the extensions of the two ends of the arc shape are perpendicular to each other.

[0016] In summary, this application includes the following beneficial technical effects: 1. This application features a height-adjustable processing chamber. During shot blasting, the inner chamber shroud descends, forming a partially sealed micro-cavity with the bottom wall of the shot blasting chamber. The impact energy of the shot is concentrated on the workpiece area, effectively preventing the escape of shot and dust. Combined with negative pressure suction at the dust extraction port, dust diffusion is controlled at the source, reducing the dust removal load and improving the working environment. Simultaneously, the visual scanning unit pre-acquires the workpiece's shape point cloud data, and the controller automatically plans a multi-axis linkage trajectory, driving the shot blaster body to move in multiple degrees of freedom, including horizontal rotation, radial translation, vertical lifting, arc swing, and multi-directional projection angle adjustment. This ensures that the shot beam always covers all surfaces of the workpiece with the optimal incident angle, eliminating processing dead angles and improving the shot blasting uniformity and surface quality of complex curved workpieces.

[0017] 2. This application decouples the material supply path from the motion mechanism, delivering shot from the external storage bin to the moving shot blasting machine body via a flexible hose. The motion mechanism does not need to bear the weight of the stored material, ensuring the response speed and accuracy of high-frequency position adjustment. In the adjustment structure, the rectangular sliding structure of the guide rod frame and the sliding sleeve seat, together with the auxiliary support block and the triangular bracket, forms multiple rigid supports, effectively suppressing the deflection deformation of the cantilever outer cylinder under the reaction force of shot blasting, ensuring the stability of continuous processing. The combination of the arc track structure and the swing structure enables the shot blasting machine body to adjust its position flexibly at large angles in the narrow inner cavity. The structure is compact and highly adaptable, suitable for precision shot blasting operations on workpieces with deep cavities, curved surfaces, or irregular shapes.

[0018] 3. The cylinder lifting structure of the processing chamber in this application, combined with the multi-degree-of-freedom adjustment capability of the motion mechanism, allows the equipment to adapt to workpieces of different shapes and sizes at the same workstation without the need to change mechanical tooling or readjust. The lifting stroke of the inner cavity cover and the radial, height and swing angle adjustment range of the shot blaster body are superimposed to form ample processing space adaptability. When the specifications or shape of the workpiece changes, it is only necessary to adjust the relative position and projection angle between the shot blaster body and the workpiece surface through the motion mechanism to complete the adaptation, reducing the changeover and debugging time when switching between multiple types of workpieces, and improving the utilization rate and flexible production capability of the equipment. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this application; Figure 2 This is a schematic diagram of the connection between the shot blasting chamber and the processing chamber in this application; Figure 3 This is a schematic diagram of the motion mechanism of this application; Figure 4 This application Figure 3 A schematic diagram of the mid-positioning structure viewed from below; Figure 5 This is a schematic diagram of the arc track structure of this application; Figure 6 This application Figure 5 A three-dimensional structural diagram of the central arc rail structure viewed from below; Figure 7 This application Figure 6 A schematic diagram of the connection between the telescopic rod, the slider, and the cross slot frame; Figure 8 This is a schematic diagram of the tilting structure of this application.

[0020] Explanation of reference numerals in the attached drawings: 1. Frame; 2. Shot blasting chamber; 3. Hollowed-out groove; 4. Bucket-shaped cover; 5. Cover plate; 6. Chamber door; 7. Storage bin; 8. Processing chamber; 10. Controller; 81. Inner chamber cover; 82. Carrier plate; 83. Cylinder; 84. Dust suction port; 85. Vision scanning unit; 86. Motion mechanism; 87. Shot blasting machine body; 88. Hose; 860. Support; 861. Drive motor; 862. Adjustment structure; 863. Servo motor; 864. Outer cylinder column; 865. Stepper motor; 866. First screw; 867. Internal threaded ring; 868. Inner cylinder; 869. Connecting block; 8610. Arc rail structure; 8611. Swinging structure; 8641. Triangular bracket; 8621. Turntable; 8622. 8623, Second Screw; 8624, Internal Threaded Slider; 8625, Guide Rod Frame; 8626, Sliding Sleeve Seat; 8627, Auxiliary Support Block; 86101, Vertical Plate; 86102, Upper Loading Frame; 86103, Lower Loading Frame; 86104, First Motor; 86105, Remote Rod; 86106, Slider; 86107, Cross Slot Frame; 86108, Push Rod Sleeve; 86109, First Arc Block; 861010, Carrier Block; 861011, Second Arc Block; 86111, Vertical Platform; 86112, Mounting Frame; 86113, Second Motor; 86114, U-Shaped Rod; 86115, Third Motor; 86116, First Diagonal Rod; 86117, Second Diagonal Rod; 86118, Collar. Detailed Implementation

[0021] The following is in conjunction with the appendix Figure 1 -Appendix Figure 8 This application will be described in further detail below.

[0022] Please see Figure 1 and Figure 2 This application provides a high-efficiency shot blasting machine for workpiece processing, including a frame 1 as a basic support, and a shot blasting chamber 2 bolted to the top side of the frame 1. The shot blasting chamber 2 constitutes the main working space of the equipment, and a hollow groove 3 is opened on its bottom side for placing the workpiece to be processed directly below the processing chamber 8 through the workpiece bracket. A bucket-shaped cover 4 is fixed to the outer periphery of the bottom of the shot blasting chamber 2. The conical sidewall of the bucket-shaped cover 4 can guide and collect the scattered shot. A cover plate 5 is inserted into the bottom front of the cover plate 5, and the interior can be cleaned and maintained after opening the cover plate 5. A chamber door 6 is hinged to each of the left and right sides of the front of the shot blasting chamber 2 for operators to carry out maintenance. A storage bin 7 is provided on the right rear side of the shot blasting chamber 2 for loading shot and replenishing it through a shot circulation device. A controller 10 is installed on the left front side of the shot blasting chamber 2. The controller 10 has a built-in processor and drive module for machine motion control and visual data processing.

[0023] The shot blasting chamber 2 has a processing chamber 8 installed on its upper side. The processing chamber 8 includes an inner cavity cover 81 with an open bottom. The inner cavity cover 81 is welded from wear-resistant steel plates, and a carrier plate 82 is fixedly wrapped around its upper outer periphery. The piston rod ends of cylinders 83 are connected to the top left and right sides of the top of the carrier plate 82, respectively. The cylinder bodies of the two cylinders 83 are installed on the top side of the inner wall of the shot blasting chamber 2. Through synchronous control by a solenoid valve, the inner cavity cover 81 can be driven to rise and fall vertically, so that when it descends, it covers the workpiece and the bottom side of the inner wall of the shot blasting chamber 2, forming a partially sealed processing chamber. A dust suction port 84 is provided on the right side of the inner cavity cover 81. The dust suction port 84 is connected to an external dust collector through a pipeline. During the shot blasting process, the dust is continuously sucked up under negative pressure to prevent dust from escaping. A vision scanning unit 85 is provided on the lower side of the inner wall of the inner cavity cover 81. The vision scanning unit 85 includes an industrial camera and a laser contour sensor inside the protective cover. It can perform three-dimensional scanning of the workpiece and generate point cloud data, which is then transmitted to the controller 10. Preferably, there are two vision scanning units 85, which are symmetrically installed on the left and right side walls of the inner cavity cover 81 to expand the scanning field of view and reduce blind spots.

[0024] The inner cavity cover 81 has a motion mechanism 86 fastened to the top side inside. The bottom side of the motion mechanism 86 is connected to the shot blasting body 87. The shot blasting body 87 is a centrifugal shot blasting machine. Its top shot inlet is connected to the storage bin 7 through a hose 88. The hose 88 is a wear-resistant rubber steel wire tube. It passes through the through hole on the top side of the inner cavity cover 81 and can be flexibly bent and stretched as the shot blasting body 87 moves to ensure uninterrupted shot supply.

[0025] Please see Figure 2 and Figure 3The motion mechanism 86 is used to drive the shot blaster body 87 to perform multi-directional displacement movements. Its specific structure is as follows: it includes a support platform 860 fastened to the top wall of the inner cavity cover 81 by bolts on the top side. A drive motor 861 is locked in the middle of the support platform 860. The drive motor 861 is a servo geared motor with a brake. Its bottom output shaft passes through the support platform 860 and is connected to the adjustment structure 862. The adjustment structure 862 can rotate around the vertical axis, realizing the horizontal rotational freedom of the shot blaster body 87. A servo motor 863 is connected to the right side of the adjustment structure 862, and an outer cylinder column 864 is fixed on the side of the adjustment structure 862 away from the servo motor 863. The outer cylinder column 864 is a long cylinder with a circular cross-section, and a stepper motor 865 is locked at its top. The bottom output end of the stepper motor 865 is connected to the first screw 866 through a coupling. A rod 866 is vertically positioned in the middle of the inner side of the outer cylinder 864. Its outer surface is threaded with an internal threaded ring 867, which is embedded and fixed in the middle of the top of the inner cylinder 868. The inner cylinder 868 is fitted with a clearance and can slide longitudinally inside the outer cylinder 864. Thus, when the stepper motor 865 drives the first screw 866 to rotate, the inner cylinder 868 can be raised and lowered vertically, thereby adjusting the height of the shot blasting machine body 87. An arc-shaped rail structure 8610 is fixedly installed at the bottom of the inner cylinder 868 via a connecting block 869. The arc-shaped rail structure 8610 can drive its output end to swing along an arc-shaped trajectory. A swinging structure 8611 is fastened to the side of the arc-shaped rail structure 8610 away from the inner wall of the inner cavity cover 81. The inner side of the swinging structure 8611 is fastened to the shot blasting machine body 87 to adjust the projection angle of the shot blasting machine body 87.

[0026] To improve the rigidity of the cantilever structure, a triangular bracket 8641 is welded to the right side of the outer cylinder column 864. The top of the triangular bracket 8641, away from the outer cylinder column, is fixedly connected to the movable part in the adjustment structure 862 to form a stable triangular support.

[0027] Please see Figure 3 and Figure 4The adjustment structure 862 specifically includes a turntable 8621 whose top center side is keyed to the output end of a drive motor 861. A slot 8622 is fixedly connected to the bottom of the turntable 8621 by screws. A second screw 8623 is horizontally mounted inside the slot 8622 via a bearing. One end of the second screw 8623 is connected to the output shaft of a servo motor 863, which is located on the right end face of the slot 8622. An internally threaded slider 8624 is threaded onto the second screw 8623, allowing it to slide stably horizontally inside the slot 8622. A guide rod frame 8625 is tightly fitted to the bottom of the internally threaded slider 8624. The guide rod frame 8625 is a rectangular frame composed of two parallel columnar rods as long sides and two rectangular connecting blocks as short sides. A sliding sleeve seat 86 is slidably fitted onto the outer surface of the guide rod frame 8625. 26. The sliding sleeve seat 8626 is equipped with sliding bearings that cooperate with two columnar rods. The top of the sliding sleeve seat 8626 is fixedly connected to the auxiliary support block 8627 by bolts. The upper and lower parts of the auxiliary support block 8627 on the side away from the outer cylinder column 864 are fixed to the turntable 8621 and the slot seat 8622 respectively, thereby fixing the position of the sliding sleeve seat 8626 relative to the slot seat 8622. The side of the guide rod frame 8625 away from the internal thread slider 8624 is fixed to the outer wall of the outer cylinder column 864. When the servo motor 863 drives the second screw 8623 to rotate, the internal thread slider 8624 drives the guide rod frame 8625, the outer cylinder column 864 and the subsequent mechanism to move together in the horizontal direction, thereby realizing the radial position adjustment of the shot blasting machine body 87. Since the guide rod frame 8625 is guided by the sliding sleeve seat 8626 from front to back, the cantilever deflection deformation of the outer cylinder column 864 is effectively suppressed, and the movement is highly stable.

[0028] Please see Figure 3 , Figures 5 to 8The arc track structure 8610 specifically includes a vertical plate 86101 fixed to the top side of the connecting block 869. The upper and lower parts of the vertical plate 86101, away from the inner cavity cover 81, are respectively welded with an upper frame 86102 and a lower frame 86103. The right sides of both the upper frame 86102 and the lower frame 86103 are arc-shaped strip tracks. A first motor 86104 is locked in the middle of the vertical plate 86101. The top output shaft of the first motor 86104 is connected to a remote rod 86105. The top of the remote rod 86105 is connected via... A pin rotatably connects to a slider 86106, which is a rectangular block. Its top side inserts into and slides within the lower groove of a cross-shaped slot frame 86107. A guide key is located on the top center of the cross-shaped slot frame 86107, which slides into a slot on the bottom center of the upper frame 86102, allowing the cross-shaped slot frame 86107 to slide only along the front-back direction of the upper frame 86202. A push rod sleeve 86108 is also slidably fitted onto the upper right side of the outer surface of the cross-shaped slot frame 86107. 86108 can slide a short distance along the slot of the cross-groove frame 86107, and its right end is rotatably connected to the first arc-shaped block 86109 via a pin; the first arc-shaped block 86109 is an arc-shaped slider, and its inner arc surface slides in cooperation with the arc-shaped strip on the right side of the upper frame 86102. The right side of the first arc-shaped block 86109 is fixedly connected to the carrier block 861010, and the bottom left side of the carrier block 861010 is fixed with the second arc-shaped block 861011, and the inner arc surface of the second arc-shaped block 861011 is connected to the lower frame 8610. 3. The right-side arc-shaped strip slides; thus, when the first motor 86104 rotates, the remote lever 86105 drives the slider 86106 to move in the groove of the cross slot frame 86107 and drives the cross slot frame 86107 to produce a front-to-back displacement, which in turn pushes the first arc-shaped block 86109 to slide along the arc-shaped track through the push rod sleeve 86108. The carrier block 861010 then makes a precise arc movement, so that the shot blasting machine body 87 can swing in an arc around a horizontal axis, which is suitable for processing cylindrical surfaces or curved surfaces.

[0029] Specifically, the swing structure 8611 includes a platform 86111 bolted to the left side of the carrier block 861010. A mounting bracket 86112 is integrally formed on the side of the platform 86111 away from the carrier block 861010. A second motor 86113 is locked to the top of the mounting bracket 86112. The bottom output shaft of the second motor 86113 extends into the inside of the mounting bracket and connects to a U-shaped rod 86114. A third motor 86115 is locked to the rear of the mounting bracket 86112. The front output shaft of the third motor 86115 connects to a first inclined rod 86116, which is arc-shaped with its two ends' axis extensions perpendicular to each other. The end of the first inclined rod 86116 away from the third motor 86115 is rotatably connected to a second inclined rod 86117, which is also arc-shaped with its two ends' axes... The extended lines are perpendicular to each other, and the other end of the second inclined rod 86117 is rotatably connected to the bottom of the collar 86118. The collar 86118 is a ring structure, and its front and rear sides are pivotally connected between the two arms of the U-shaped rod 86114 to form a universal joint suspension. The inner side of the collar 86118 is tightened with bolts to the shot blasting body 87. During operation, the second motor 86113 drives the U-shaped rod 86114 to rotate, which can adjust the sway angle of the shot blasting body 87. At the same time, the third motor 86115 drives the first inclined rod 86116 to rotate, and the second inclined rod 86117 pulls the collar 86118 to swing around the pivot of the U-shaped rod 86114, thereby realizing the angle adjustment of the shot blasting body 87 in another direction. The bow-shaped structure of the two sets of inclined rods avoids motion interference and increases the adjustment range.

[0030] The working principle and process of this application are as follows: First, a rotatable worktable is installed in the hollow groove 3. The workpiece to be processed is loaded onto the rotatable worktable. The operator sets the processing parameters through the controller 10, including shot blasting time, shot flow rate and the movement trajectory of each axis. The shot in the storage bin 7 is prepared by the conveying device.

[0031] Second, the controller 10 issues a command, and the piston rods of the two cylinders 83 extend synchronously, pushing the carrier plate 82 and the inner cavity cover 81 fixed thereto to descend vertically. The inner cavity cover 81 descends to cover the workpiece to be processed. At the same time, the dust suction port 84 is connected to the external dust collector through the pipeline, and begins to perform negative pressure suction in the cavity to establish a stable dust removal airflow.

[0032] Third, the visual scanning units 85 installed on the left and right sides of the inner wall of the inner cavity cover 81 are activated. The industrial camera and laser contour sensor perform three-dimensional scanning of the workpiece, acquire the workpiece shape point cloud data and transmit it to the controller 10. The path planning module built into the controller 10 automatically calculates the horizontal rotation angle, radial position, height, arc swing angle and projection posture angle required by the shot blasting machine body 87 at each processing moment based on the workpiece shape data and the preset process parameters, and generates a multi-axis linkage motion trajectory program.

[0033] Fourth, the controller 10 starts the shot blasting machine body 87. The shot material enters the shot inlet of the shot blasting machine body 87 from the storage bin 7 through the hose 88. After centrifugal acceleration, it forms a high-speed shot beam that is shot towards the workpiece surface. At the same time, the motors of the motion mechanism 86 coordinate their actions according to the calculated trajectory: the drive motor 861 drives the adjustment structure 862 to rotate around the vertical axis, adjusting the horizontal azimuth angle of the shot blasting machine body 87; the servo motor 863 drives the second screw 8623 to rotate, causing the internal thread slider 8624, guide rod frame 8625 and outer cylinder column 864 to translate radially, adjusting the radial distance between the shot blasting machine body 87 and the workpiece surface; the stepper motor 865 drives the first screw 866 to rotate, causing the inner cylinder 868 to rise and fall vertically along the outer cylinder column 864, adjusting the height position of the shot blasting machine body 87; the first motor 86104 drives the remote rod 86105 in the arc track structure 8610 to rotate, through the slider 86106 and the cross groove frame 8623. The transmission of 6107 and push rod sleeve 86108 causes the first arc-shaped block 86109 and the second arc-shaped block 861011 to slide along the arc-shaped tracks of the upper frame 86102 and the lower frame 86103. The carrier block 861010 drives the swing structure 8611 and the shot blaster body 87 to swing in an arc around the horizontal axis. The second motor 86113 drives the U-shaped rod 86114 to rotate, and the third motor 86115 drives the first inclined rod 86116 to rotate and pulls the collar 86118 around the pivot of the U-shaped rod 86114 through the second inclined rod 86117. The two work together to adjust the projection deflection angle of the shot blaster body 87. Through the superposition of the above-mentioned axis movements, the shot beam always covers each area to be treated on the workpiece surface at the preset optimal incident angle, eliminating processing dead angles and achieving uniform shot blasting strengthening of the entire surface. The dust generated during the processing is immediately extracted by the dust suction port 84, and the scattered shot is collected to the bottom through the conical surface of the bucket-shaped cover 4.

[0034] Fifth, after the processing is completed, the controller 10 issues a stop command, the shot blasting machine body 87 stops working, each motion axis returns to zero, the cylinder 83 retracts, and the inner cavity cover 81 rises and resets; the operator opens the cavity door 6 and takes out the processed workpiece, completing a complete work cycle.

[0035] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A high-efficiency shot blasting machine for workpiece processing, comprising a frame (1), a shot blasting chamber (2) locked on the top side of the frame (1), a hollow groove (3) opened on the bottom side of the shot blasting chamber (2), and a bucket-shaped cover (4) fixed on the outer periphery of the bottom of the shot blasting chamber (2), a cover plate (5) inserted into the bottom side of the front part of the bucket-shaped cover (4), a door (6) hinged on the left and right sides of the front part of the shot blasting chamber (2), a storage bin (7) for loading shot is provided on the right rear side of the shot blasting chamber (2), and a controller (10) is provided on the left side of the front part of the shot blasting chamber (2). Its features are: The shot blasting chamber (2) has a processing chamber (8) installed on the upper side inside. The processing chamber (8) includes an inner cavity cover (81). A carrier plate (82) is fixedly wrapped around the upper part of the outer periphery of the inner cavity cover (81). A cylinder (83) is connected to the top left and right sides of the top of the carrier plate (82). The two cylinders (83) are installed on the top side of the inner wall of the shot blasting chamber (2). A dust suction port (84) is provided on the right side of the inner cavity cover (81). A visual scanning unit is provided on the lower side of the inner wall of the inner cavity cover (81). (85) The inner cavity cover (81) has a fixed motion mechanism (86) on the top side. The bottom side of the motion mechanism (86) is connected to the shot blasting body (87) for driving the shot blasting body (87) to perform multi-directional displacement. The top side of the shot blasting body (87) is connected to a hose (88) for conveying shot, and the hose (88) passes through the top side of the inner cavity cover (81). The end of the hose (88) away from the shot blasting body (87) is connected to the storage bin (7). The motion mechanism (86) includes a support (860) that is fastened to the top side of the inner cavity cover (81). A drive motor (861) is locked and fixed to the middle side of the top of the support (860). An adjustment structure (862) is connected to the bottom output end of the drive motor (861), and the adjustment structure (862) is rotatably connected to the middle side of the bottom of the support (860). A servo motor (863) is connected to the right side of the adjustment structure (862), and an outer cylinder column (864) is fixed to the side of the adjustment structure (862) away from the servo motor (863). A stepper motor (865) is locked and fixed to the top of the outer cylinder column (864), and the bottom output end of the stepper motor (865) is... A first screw (866) is connected and is longitudinally arranged in the middle of the inner side of the outer cylinder (864). An inner threaded ring (867) is threaded on the outer surface of the first screw (866). The inner threaded ring (867) is embedded and fixed in the middle of the top of the inner cylinder (868). The inner cylinder (868) slides longitudinally inside the outer cylinder (864). An arc rail structure (8610) is installed at the bottom of the inner cylinder (868) through a connecting block (869). A swing structure (8611) is tightly fastened on the side of the arc rail structure (8610) away from the inner wall of the inner cavity cover (81). The inner side of the swing structure (8611) is fastened to the shot blasting machine body (87).

2. The high-efficiency shot blasting machine for workpiece processing according to claim 1, characterized in that: Two visual scanning units (85) are provided, which are respectively connected to the left and right side walls of the inner cavity cover (81).

3. The high-efficiency shot blasting machine for workpiece processing according to claim 1, characterized in that: A triangular bracket (8641) is fixedly installed on the right side of the outer cylinder (864), and the top of the triangular bracket (8641) away from the outer cylinder (864) is fastened to the adjustment structure (862).

4. The high-efficiency shot blasting machine for workpiece processing according to claim 1, characterized in that: The adjustment structure (862) includes a turntable (8621) connected to the bottom output end of a drive motor (861) at its top center. A slot (8622) is fixedly connected to the bottom of the turntable (8621). A second screw (8623) is horizontally arranged inside the slot (8622). An internally threaded slider (8624) is threaded onto the outer surface of the second screw (8623). The right side of the second screw (8623) is connected to the left output end of a servo motor (863). The internally threaded slider (8624) slides into and slides within the slot (8621). Inside the lower middle side of 8622), the bottom of the internal threaded slider (8624) is tightly fitted with a guide rod frame (8625). The outer surface of the guide rod frame (8625) is wrapped with a sliding sleeve seat (8626). The side of the guide rod frame (8625) away from the internal threaded slider (8624) is fixed to the outer cylinder column (864). The top of the sliding sleeve seat (8626) is fixedly connected to an auxiliary support block (8627). The upper and lower parts of the side of the auxiliary support block (8627) away from the outer cylinder column (864) are respectively fixed to the turntable (8621) and the slot seat (8622).

5. The high-efficiency shot blasting machine for workpiece processing according to claim 4, characterized in that: The guide rod frame (8625) is rectangular in shape, consisting of two long sides formed by two columnar rods and two short sides formed by two rectangular blocks. The sliding sleeve seat (8626) is wrapped around and slides on the outer surface of the two columnar rods.

6. The high-efficiency shot blasting machine for workpiece processing according to claim 1, characterized in that: The arc track structure (8610) includes a vertical plate (86101) that is fastened to the connecting block (869) on its top side. The upper and lower parts of the vertical plate (86101) away from the inner cavity cover (81) are respectively fixed with an upper frame (86102) and a lower frame (86103), and a first motor (86104) is locked and fixed in the middle. The top output end of the first motor (86104) is connected to a remote rod (86105). The top of the remote rod (86105) away from the first motor (86104) is rotatably connected to a slider (86106). The top side of the slider (86106) is inserted and slides inside the cross slot frame (86107). The top middle side of the cross slot frame (86107) slides back and forth. Connected inside the upper frame (86102), the upper right side of the outer surface of the cross slot frame (86107) is wrapped with a push rod sleeve (86108), the right end of the push rod sleeve (86108) is rotatably connected to a first arc block (86109), the first arc block (86109) is wrapped and slidably on the right side of the upper frame (86102), and a carrier block (861010) is fixed to the right side of the first arc block (86109). A second arc block (861011) is fixed to the bottom left side of the carrier block (861010), the second arc block (861011) is wrapped and slidably on the right side of the lower frame (86103), and the right side of the carrier block (861010) is fastened to the swing structure (8611).

7. The high-efficiency shot blasting machine for workpiece processing according to claim 6, characterized in that: Both the upper frame (86102) and the lower frame (86103) are provided with an arc-shaped strip on the right side. A slot is opened on the bottom side of the middle part of the upper frame (86102), and the upper part of the cross slot frame (86107) is inserted and slids inside the slot.

8. The high-efficiency shot blasting machine for workpiece processing according to claim 6, characterized in that: The swing structure (8611) includes a platform (86111) on the left side that is fastened to the carrier block (861010). A mounting bracket (86112) is integrally formed on the side of the platform (86111) away from the carrier block (861010). A second motor (86113) is locked to the top of the mounting bracket (86112). A U-shaped rod (86114) is connected to the bottom output end of the second motor (86113). A third motor (86115) is locked to the rear side of the mounting bracket (86112). The front output end of the machine (86115) is connected to a first inclined rod (86116). The end of the first inclined rod (86116) away from the third motor (86115) is rotatably connected to a second inclined rod (86117). The end of the second inclined rod (86117) away from the first inclined rod (86116) is rotatably connected to the bottom of the collar (86118). The front and rear sides of the collar (86118) are rotatably connected to the inside of the U-shaped rod (86114). The inner side of the collar (86118) is tightly fitted through the shot blasting machine body (87).

9. The high-efficiency shot blasting machine for workpiece processing according to claim 8, characterized in that: The first diagonal bar (86116) and the second diagonal bar (86117) are both in the shape of an arc, and the extension lines at both ends of the arc shape are perpendicular to each other.

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