Method for collecting off-grade workpieces on a magnetic swing turntable on a balancer scrap line

Abstract

The application discloses a kind of for the collection method of magnetic attraction turntable type unqualified workpiece collection device on the waste line of balancing machine.The device includes unqualified product collection component and holds up component, unqualified product collection component is set to the upper of waste line assembly, unqualified product holds up component can be arranged from the lower of waste line assembly and be arranged in waste line assembly, and unqualified product holds up component is used to lift unqualified workpiece on waste line assembly.The method includes: unqualified product holds up component lifts unqualified workpiece to the V-shaped opening of magnet mounting sheet metal pair, and the magnetic attraction of magnet adsorbs unqualified workpiece to the surface of magnet mounting sheet metal, to realize the collection of unqualified workpiece.The unqualified workpiece on the waste line of balancing machine is collected by magnetic attraction in the application, and the device is stable in structure, low in cost, simple in assembly and compatible with multiple workpieces.

Description

[0001] This application is a divisional application of patent application No. 202410385803.7, filed on April 1, 2024, entitled "Magnetic Rotary Discarding Workpiece Collection Device and Collection Method for Waste Line of Balancing Machine". Technical Field

[0002] This invention relates to a defective workpiece collection device, and more particularly to a magnetic turntable method for collecting defective workpieces on a balancing machine scrap line. Background Technology

[0003] Currently, most non-conforming product collection devices for flat belt conveyor balancing machines are either belt conveyor type or simple reciprocating motion mechanism type. Because some workpieces are magnetic, and considering compatibility issues, non-conforming products need to be separated; otherwise, they will be attracted together by magnetic force. Therefore, belt conveyor type non-conforming product collection devices use cylinders and grippers to transfer non-conforming workpieces onto the belt conveyor for separation. Simple reciprocating motion mechanism type non-conforming product collection devices are driven by cylinders or motors. The non-conforming products are first lifted from the chain waste conveyor by a cylinder, then held by the collection device, and then transported to a designated location through the reciprocating linear motion of the mechanism. Once the collection is full, the workpieces are manually removed.

[0004] Such non-conforming product collection mechanisms have the following disadvantages: First, belt conveyor non-conforming product collection mechanisms require intermediate handling mechanisms as a medium, resulting in complex structures, high costs, difficulty in assembly, and complex changes for different types of workpieces; Second, simple reciprocating motion non-conforming product collection devices driven by cylinders or motors can only collect a limited number of non-conforming workpieces, have insufficient structural stability, and require frequent tooling changes when changing different types of workpieces. Summary of the Invention

[0005] To address the problems in the background art, this invention provides a magnetic rotary table-type non-conforming workpiece collection device and its collection method for use on a balancing machine waste line. The collection device of this invention, through the cooperation of a non-conforming workpiece collection component and a non-conforming workpiece lifting component, utilizes the magnetism of the workpiece to conveniently and quickly collect non-conforming workpieces. Furthermore, it eliminates the need for frequent tooling changes for different types of workpieces, features a stable structure, and is easy to assemble. This solves the problems of traditional non-conforming workpiece collection devices, such as complex structure, high cost, difficulty in assembly, and complex changes for different workpiece types.

[0006] The technical solution adopted in this invention is: I. A magnetic rotary disc-type non-conforming workpiece collection device for use on the waste line of a balancing machine: The workpiece collecting device is used to collect defective workpieces from the scrap line assembly. The workpiece collecting device mainly consists of a defective product collecting component and a defective product lifting component. The defective product collecting component is located above the scrap line assembly, and the defective product lifting component is arranged vertically and vertically through the scrap line assembly from below. The defective product lifting component is used to lift the defective workpieces on the scrap line assembly.

[0007] The qualified product collection component includes a mounting base, a support base, a horizontal moving guide rail, a moving connecting plate, a main rotating disk, an electric rotating table, a sensor mounting bracket, and a sensor; The support base is fixed to the top surface of the mounting base plate. The waste line assembly is located above the mounting base plate. A horizontal moving guide rail is fixed to the top surface of the support base. A slider is slidably mounted on the horizontal moving guide rail. An L-shaped moving connecting plate composed of two long plates is provided on the top surface of the slider. The first long plate is horizontally fixed to the top surface of the slider. The second long plate is arranged perpendicular to the first long plate and fixedly connected to the first long plate. The horizontal moving guide rail and the slider are mainly used for sliding in the axial direction of the main rotating disk. A sensor mounting bracket is mounted on the side of the second long plate near the horizontal moving guide rail. A sensor is mounted at the end of the sensor mounting bracket. An electric rotating table is fixed on the side of the second long plate away from the horizontal moving guide rail. One end face of the main rotating disk is fixed to the rotating disk of the electric rotating table. The second long plate of the L-shaped moving connecting plate, the rotating disk of the electric rotating table, and the main rotating disk are arranged coaxially. The rotating disk of the electric rotating table drives the main rotating disk to rotate. Multiple magnet mounting sheet metal is provided on the other end face of the main rotating disk. Multiple V-shaped slots are spaced apart circumferentially on the outer edge of the main rotating disk. The end face of the main rotating disk faces the horizontal direction. The magnet mounting sheet metal is arranged on the other end face of the main rotating disk along both sides of the V-shaped groove. Each magnet mounting sheet metal arranged on both sides of the V-shaped groove forms a magnet mounting sheet metal pair with a V-shaped opening. The side of the magnet mounting sheet metal away from its own V-shaped groove is provided with a magnet. The defective product lifting component lifts the defective workpieces on the waste line assembly to the V-shaped opening of the magnet mounting sheet metal pair. The magnetic attraction of the magnets attracts the defective workpieces to the surface of the magnet mounting sheet metal, thereby realizing the collection of defective workpieces.

[0008] The defective product lifting components include a cylinder guide rail, a cylinder mounting plate, a lifting cylinder, a connecting block, a spring, a workpiece support block, and a guide shaft; The cylinder guide rail is arranged along the axial direction of the main rotating disk and is located above the mounting base plate and below the waste line assembly. The cylinder mounting plate is mounted on the top surface of the cylinder guide rail and is driven by the cylinder guide rail to move along the axial direction of the main rotating disk. A lifting cylinder is installed in the middle of the cylinder mounting plate. The output end of the lifting cylinder passes through the cylinder mounting plate and the connecting block in a vertically upward direction and is fixedly connected. The top surface of the cylinder barrel of the lifting cylinder is fixed to the bottom surface of the cylinder mounting plate. The upper part of the connecting block is connected to a workpiece support block via two vertically oriented guide shafts. The guide shafts and the workpiece support block are fixedly connected, while the guide shafts and the connecting block are not fixed to each other. A spring is sleeved on the outer circumference of each guide shaft. The workpiece support block is used to support the defective workpiece. Under the elastic support of the spring, the workpiece support block automatically floats up and down according to the weight of the defective workpiece, which is compatible with defective workpieces of different specifications.

[0009] A support block is fixed to the top surface of the support base. The support block is fixed to the top surface of the support base on the side of the horizontal moving guide rail near the electric rotary table. The height of the support block is the same as the height of the slider, and it is used to support the L-shaped moving connecting plate.

[0010] The top surface of the L-shaped movable connecting plate is provided with an oblong through groove along the axial direction of the main rotating disk. An adjustment and tightening handle screw is installed in the oblong through groove. The lower end of the adjustment and tightening handle screw passes through the oblong through groove and is inserted into the top surface of the support block. By turning the adjustment and tightening handle screw, the L-shaped movable connecting plate moves along the axial direction of the main rotating disk, thereby adjusting the axial displacement of the electric rotary table and the main rotating disk together.

[0011] The top surface of the cylinder mounting plate has an oblong through groove perpendicular to the direction of the cylinder guide rail. A movable slider is installed inside the cylinder guide rail. The upper part of the movable slider is inserted into the oblong through groove on the top surface of the cylinder mounting plate. By controlling the movable slider, the displacement of the defective product lifting component along the axial direction of the main rotating disk and the displacement perpendicular to the axial direction of the main rotating disk can be adjusted. These two directions are two directions on the same horizontal plane.

[0012] II. Collection method of the workpiece collecting device: 1) When a defective workpiece is transported to the designated position through the scrap line assembly, the sensor detects the defective workpiece. At this time, the output end of the lifting cylinder rises axially, and the top surface of the workpiece support block contacts the bottom surface of the defective workpiece and lifts the defective workpiece to one of the magnet mounting sheet metal pairs. Then, the magnetic attraction force of the magnet on the surface of the magnet mounting sheet metal pulls the defective workpiece on the top surface of the workpiece support block into the V-shaped opening of the magnet mounting sheet metal pair. 2) When the sensor detects that there is a defective workpiece in the V-shaped opening of the sheet metal pair mounted on the magnet, the output end of the lifting cylinder descends axially downwards, and then the electric rotary table drives the main rotary disk to rotate at a preset angle. 3) Repeat the above steps until there are defective workpieces in the V-shaped openings of all the magnet mounting sheet metal pairs. Then, the sensor sends a signal to prompt manual removal of all defective workpieces; alternatively, they can be removed by a robot.

[0013] In step 2), the electric rotary table drives the main rotary disk to rotate at a preset angle of 360 degrees, which is the ratio of the total number of magnet mounting sheet metal pairs.

[0014] The beneficial effects of this invention are: This invention collects defective workpieces on the waste line of the balancing machine by magnetic attraction. The device has a stable structure, low cost, simple assembly, and does not require frequent tooling changes. It is also compatible with a variety of workpieces. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall assembly of the present invention.

[0016] Figure 2 This is a schematic diagram of the overall working position of the present invention.

[0017] Figure 3 This is an exploded view of the defective product collection component of this invention.

[0018] Figure 4 This is an exploded view of the supporting component of the defective product of this invention.

[0019] Figure 5 This is a cross-sectional view of the component supporting the defective product of this invention.

[0020] In the diagram: A0, Scrap line assembly; B0, Non-conforming product collection component; C0, Non-conforming product lifting component; B1, Mounting base plate; B2, Support base; B3, L-shaped horizontal moving guide rail; B4, Moving connecting plate; B5, Adjustment and tightening handle screw; B6, Electric rotary table; B7, Elevation plate; B8, Main rotating disk; B9, Magnet mounting sheet metal; B10, Magnet; B11, Sensor mounting bracket; B12, Sensor; B13, Support block; C1, Cylinder guide rail; C2, Cylinder mounting plate; C3, Lifting cylinder; C4, Connecting block; C5, Spring; C6, Workpiece support block; C7, Guide shaft; D1, Non-conforming workpiece. Detailed Implementation

[0021] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] like Figure 2As shown, the defective workpiece collection device is used to collect defective workpieces D1 on the scrap line assembly A0. The workpiece collection device mainly consists of a defective product collection component B0 and a defective product lifting component C0. The defective product collection component B0 is located above the scrap line assembly A0, and the defective product lifting component C0 is arranged below the scrap line assembly A0 and can be raised and lowered. The defective product lifting component C0 is used to lift the defective workpieces D1 on the scrap line assembly A0.

[0023] like Figure 1 and Figure 3 As shown, the qualified product collection component B0 includes a mounting base B1, a support base B2, a horizontal moving guide rail B3, a moving connecting plate B4, a main rotating disk B8, an electric rotating table B6, a sensor mounting bracket B11, and a sensor B12. Support base B2 is fixed to the top surface of mounting base B1. Waste line assembly A0 is located above mounting base B1. A horizontal moving guide rail B3 is fixed to the top surface of support base B2. A slider is slidably mounted on the horizontal moving guide rail B3. The top surface of the slider is provided with an L-shaped moving connecting plate B4 composed of two long plates. The first long plate is horizontally fixed to the top surface of the slider, and the second long plate is arranged perpendicular to the first long plate and fixedly connected to the first long plate. A sensor mounting bracket B11 is mounted on the side of the second long plate near the horizontal moving guide rail B3. A sensor is mounted at the end of the sensor mounting bracket B11. Sensor B12, the second long plate is fixed to the electric rotary table B6 on the side away from the horizontal moving guide rail B3, one end face of the main rotating disk B8 is fixed to the rotating disk of the electric rotary table B6, the second long plate of the L-shaped moving connecting plate B4, the rotating disk of the electric rotary table B6 and the main rotating disk B8 are arranged coaxially, the rotating disk of the electric rotary table B6 drives the main rotating disk B8 to rotate, the other end face of the main rotating disk B8 is provided with multiple magnet mounting sheet metal B9, the outer edge of the main rotating disk B8 is circumferentially spaced with multiple V-shaped slots, and the end face of the main rotating disk B8 is arranged facing the horizontal direction; Magnet mounting sheet metal B9 is arranged on the other end face of the main rotating disk B8 along both sides of the V-shaped groove. Each magnet mounting sheet metal B9 arranged on both sides of the V-shaped groove forms a magnet mounting sheet metal pair with a V-shaped opening. A magnet B10 is provided on the side of the magnet mounting sheet metal B9 away from its own V-shaped groove. The defective product lifting component C0 lifts the defective workpiece D1 on the waste line assembly A0 to the V-shaped opening of the magnet mounting sheet metal pair. The magnetic attraction of the magnet B10 attracts the defective workpiece D1 to the surface of the magnet mounting sheet metal B9, thereby realizing the collection of the defective workpiece D1.

[0024] A support block B13 is fixed to the top surface of the support base B2. The support block B13 is fixed to the top surface of the support base B2 on the side of the horizontal moving guide rail B3 near the electric rotary table B6. The height of the support block B13 is the same as the height of the slider, and it is used to support the L-shaped moving connecting plate B4.

[0025] The top surface of the L-shaped movable connecting plate B4 has an oblong through groove along the axis of the main rotating disk B8. An adjustment and tightening handle screw B5 is installed in the oblong through groove. The lower end of the adjustment and tightening handle screw B5 passes through the oblong through groove and is inserted into the top surface of the support block B13. By turning the adjustment and tightening handle screw B5, the L-shaped movable connecting plate B4 moves along the axis of the main rotating disk B8, thereby adjusting the axial displacement of the electric rotating table B6 and the main rotating disk B8 together.

[0026] like Figure 4 As shown, the non-conforming product lifting component C0 includes a cylinder guide rail C1, a cylinder mounting plate C2, a lifting cylinder C3, a connecting block C4, a spring C5, a workpiece support block C6, and a guide shaft C7. The cylinder guide rail C1 is arranged along the axial direction of the main rotating disk B8 and is located above the mounting base plate B1 and below the waste line assembly A0. The cylinder mounting plate C2 is mounted on the top surface of the cylinder guide rail C1 and is driven by the cylinder guide rail C1 to move along the axial direction of the main rotating disk B8. The cylinder mounting plate C2 is equipped with a lifting cylinder C3 in the middle. The output end of the lifting cylinder C3 passes through the cylinder mounting plate C2 and the connecting block C4 in a vertically upward direction and is fixedly connected. The top surface of the cylinder barrel of the lifting cylinder C3 is fixed to the bottom surface of the cylinder mounting plate C2. A workpiece support block C6 is connected to the top of the connecting block C4 via two vertically oriented guide shafts C7. The bottom of the workpiece support block C6 is fixedly connected to the top of the two guide shafts C7 by bolts. The bottom of the guide shafts C7 is in a free state. A spring C5 is sleeved on the outer circumference of each guide shaft C7. The two ends of the spring C5 extend into the vertical through holes opened in the connecting block C4 and the workpiece support block C6, respectively. The workpiece support block C6 is used to support the defective workpiece D1. Under the elastic support of the spring C5, the workpiece support block C6 automatically floats up and down according to the weight of the defective workpiece D1, and is compatible with defective workpieces D1 of different specifications.

[0027] The top surface of the cylinder mounting plate C2 has a waist-shaped through groove perpendicular to the direction of the cylinder guide rail C1. The cylinder guide rail C1 is equipped with a movable slider. The upper part of the movable slider is inserted into the waist-shaped through groove on the top surface of the cylinder mounting plate C2. By controlling the movable slider, the displacement of the defective product lifting component C0 along the axial direction of the main rotating disk B8 and the displacement perpendicular to the axial direction of the main rotating disk B8 can be adjusted. These two directions are two directions on the same horizontal plane.

[0028] The method for collecting defective workpieces using a non-conforming workpiece collection device includes the following steps: 1) When the defective workpiece D1 is transported to the designated position through the scrap line assembly A0, the sensor B12 detects the defective workpiece D1. At this time, the output end of the lifting cylinder C3 rises axially, and then the top surface of the workpiece support block C6 contacts the bottom surface of the defective workpiece D1 and lifts the defective workpiece D1 to one of the magnet mounting sheet metal pairs. Then, the magnetic attraction force of the magnet B10 on the surface of the magnet mounting sheet metal B9 attracts the defective workpiece D1 on the top surface of the workpiece support block C6 into the V-shaped opening of the magnet mounting sheet metal pair. 2) When sensor B12 detects the presence of a defective workpiece D1 in the V-shaped opening of the magnet mounting sheet metal pair, the output end of the lifting cylinder C3 descends axially downwards, and then the electric rotary table B6 drives the main rotary disk B8 to rotate at a preset angle, which is the ratio of 360° to the total number of magnet mounting sheet metal pairs. 3) Repeat the above steps until there are defective workpieces D1 in the V-shaped openings of all the magnet mounting sheet metal pairs. Then, the sensor B12 sends a signal to prompt manual removal of all defective workpieces D1. Alternatively, defective workpieces D1 can be removed by a robot.

[0029] When the defective workpiece D1 is not magnetic, magnet B10 is provided on the side of the magnet mounting sheet metal B9 away from its own V-groove. When the defective workpiece D1 is magnetic, magnet B10 is replaced by an iron block.

[0030] like Figure 5 As shown, when the outer diameter or weight of the defective workpiece D1 changes, the compression of spring C5 will change accordingly according to Hooke's Law. Spring C5 ensures that when the weight of the defective workpiece D1 increases, the lifting cylinder C3 lifts the defective workpiece D1 to the V-shaped opening of the magnet mounting sheet metal pair, with a gap between the defective workpiece D1 and the magnet mounting sheet metal B9. When the weight of the defective workpiece D1 decreases, the lifting cylinder C3 lifts the defective workpiece D1 to the V-shaped opening of the magnet mounting sheet metal pair, and the magnetic force between magnet B10 and the defective workpiece D1 can attract the defective workpiece D1 and make it fit with the magnet mounting sheet metal B9. This ensures that the tooling does not need to be replaced or adjusted when the workpiece changes.

Claims

1. A method for collecting defective workpieces on a magnetic turntable type on a balancing machine scrap line, characterized in that: The method includes the following steps: 1) When a defective workpiece (D1) is transported to the designated position through the scrap line assembly (A0), the sensor (B12) detects the defective workpiece (D1). At this time, the output end of the lifting cylinder (C3) rises, and the top surface of the workpiece support block (C6) contacts the bottom surface of the defective workpiece (D1) and lifts the defective workpiece (D1) to one of the magnet mounting sheet metal pairs. Then, the magnetic attraction force of the magnet (B10) on the surface of the magnet mounting sheet metal (B9) attracts the defective workpiece (D1) on the top surface of the workpiece support block (C6) into the V-shaped opening of the magnet mounting sheet metal pair. 2) When the sensor (B12) detects that there is a defective workpiece (D1) in the V-shaped opening of the sheet metal pair mounted on the magnet, the output end of the lifting cylinder (C3) descends downward, and then the electric rotary table (B6) drives the main rotary disk (B8) to rotate at a preset angle. 3) Repeat the above steps until there are defective workpieces (D1) in the V-shaped openings of all the magnet mounting sheet metal pairs. Then, the sensor (B12) sends a signal to prompt manual removal of all defective workpieces (D1).

2. The collection method according to claim 1, characterized in that: In step 2), the electric rotary table (B6) drives the main rotary disk (B8) to rotate at a preset angle of 360 degrees, which is the ratio of the total number of magnet mounting sheet metal pairs.

3. The collection method according to claim 1, characterized in that: The method is based on a magnetic turntable-type non-conforming workpiece collection device, which mainly consists of a non-conforming product collection component (B0) and a non-conforming product lifting component (C0). The non-conforming product collection component (B0) is located above the scrap line assembly (A0), and the non-conforming product lifting component (C0) is arranged vertically and vertically below the scrap line assembly (A0). The non-conforming product lifting component (C0) is used to lift non-conforming workpieces (D1) on the scrap line assembly (A0).

4. The collection method according to claim 3, characterized in that: The qualified product collection component (B0) includes a mounting base (B1), a support base (B2), a horizontal moving guide rail (B3), a moving connecting plate (B4), a main rotating disk (B8), an electric rotating table (B6), a sensor mounting bracket (B11), and a sensor (B12). The support base (B2) is fixed to the top surface of the mounting base (B1). The waste line assembly (A0) is located above the mounting base (B1). The top surface of the support base (B2) is fixed with the horizontal moving guide rail (B3). A slider is slidably mounted on the horizontal moving guide rail (B3). The top surface of the slider is provided with an L-shaped moving connecting plate (B4) composed of two long plates, wherein the first long plate is horizontally fixed to the top surface of the slider, and the second long plate is perpendicular to the top surface of the slider. The first long plate is arranged and fixedly connected to the first long plate. The second long plate has a sensor (B12) mounted on its side near the horizontal moving guide rail (B3) via a sensor mounting bracket (B11). The second long plate has an electric rotary table (B6) fixed on its side away from the horizontal moving guide rail (B3). One end face of the main rotary disk (B8) is fixed to the rotary disk of the electric rotary table (B6). The second long plate of the L-shaped moving connecting plate (B4), the rotary disk of the electric rotary table (B6), and the main rotary disk (B8) are arranged coaxially. The other end face of the main rotary disk (B8) is provided with multiple magnet mounting sheet metal (B9). The outer edge of the main rotary disk (B8) is circumferentially spaced with multiple V-shaped slots. The magnet mounting sheet metal (B9) is arranged on the other end face of the main rotating disk (B8) along both sides of the V-shaped groove. Each magnet mounting sheet metal (B9) arranged on both sides of the V-shaped groove forms a magnet mounting sheet metal pair with a V-shaped opening. A magnet (B10) is provided on the side of the magnet mounting sheet metal (B9) away from the V-shaped groove.

5. The collection method according to claim 3, characterized in that: The non-conforming product lifting component (C0) includes a cylinder guide rail (C1), a cylinder mounting plate (C2), a lifting cylinder (C3), a connecting block (C4), a spring (C5), a workpiece support block (C6), and a guide shaft (C7). The cylinder guide rail (C1) is arranged axially along the main rotating disk (B8) and located above the mounting base plate (B1) and below the scrap line assembly (A0). The cylinder mounting plate (C2) is mounted on the top surface of the cylinder guide rail (C1) and is driven by the cylinder guide rail (C1) to move axially along the main rotating disk (B8). 2) A lifting cylinder (C3) is installed in the middle. The output end of the lifting cylinder (C3) passes through the cylinder mounting plate (C2) and the connecting block (C4) in a vertically upward direction and is fixedly connected. A workpiece support block (C6) is connected above the connecting block (C4) via two vertically oriented guide shafts (C7). The guide shafts (C7) and the workpiece support block (C6) are fixedly connected, but the guide shafts (C7) and the connecting block (C4) are not fixed. A spring (C5) is sleeved on the outer periphery of each guide shaft (C7). The workpiece support block (C6) is used to lift the defective workpiece (D1).

6. The collection method according to claim 4, characterized in that: The top surface of the support base (B2) is fixed with a support block (B13). The support block (B13) is fixed to the top surface of the support base (B2) on the side of the horizontal moving guide rail (B3) near the electric rotary table (B6). The height of the support block (B13) is the same as the height of the slider.

7. The collection method according to claim 4, characterized in that: The top surface of the L-shaped movable connecting plate (B4) is provided with a waist-shaped through groove along the axial direction of the main rotating disk (B8). An adjustment and tightening handle screw (B5) is installed in the waist-shaped through groove. The lower end of the adjustment and tightening handle screw (B5) passes through the waist-shaped through groove and is inserted into the top surface of the support block (B13).

8. The collection method according to claim 5, characterized in that: The top surface of the cylinder mounting plate (C2) is provided with a waist-shaped through groove perpendicular to the direction of the cylinder guide rail (C1). The cylinder guide rail (C1) is equipped with a movable slider. The upper part of the movable slider is inserted into the waist-shaped through groove on the top surface of the cylinder mounting plate (C2). By controlling the movable slider, the displacement of the defective product lifting component (C0) along the axial direction of the main rotating disk (B8) and the displacement perpendicular to the axial direction of the main rotating disk (B8) can be adjusted.

Images