A delivery device for spring contact pin with positioning assembly and method of use

Abstract

The present application relates to the technical field of conveying device, in particular to a conveying device with positioning assembly for spring contact finger preparation and a use method, comprising: a conveying belt; the conveying device further comprises: a positioning assembly arranged on the conveying belt, the positioning assembly has a rotatable bearing table, the bearing table is provided with an inner supporting surface which can expand radially under the action of centrifugal force, the inner supporting surface is used for internally supporting and tightening the spring contact finger, one side of the conveying belt is provided with a visual detection device for appearance detection of the spring contact finger in the rotating state of the bearing table. The present application sets the rotatable bearing table on the conveying belt, and sets the inner supporting surface which can expand radially under the action of centrifugal force on the bearing table, internally and stably supports and tightens the spring contact finger, keeps the postures of the spring contact fingers consistent and mutually independent and separated during the conveying process, the inner supporting surface only contacts the inner ring of the spring contact finger, so that the outer surface is fully exposed, and the visual field condition without obstacles is provided for automatic detection.

Description

Technical Field

[0001] This invention relates to the field of conveying device technology, and in particular to a conveying device for preparing spring contact fingers with positioning components and a method of using it. Background Technology

[0002] Spring contact fingers, also known as inclined coil springs, are a type of ring spring with an elliptical coil that is set at an angle. They are widely used in high-voltage switches, high-speed rail, new energy vehicles and other fields. In the mass production of spring contact fingers, subsequent processes such as welding, testing and surface treatment usually require conveying devices to realize the automatic flow of workpieces between different workstations.

[0003] However, the spring contact finger is a ring-shaped helical elastomer, which is prone to rolling and shifting during transport and easy to get tangled together when stacked, making it impossible for the robot to grasp accurately and for the detection equipment to position accurately. Although some existing technologies use fixed inner support surfaces to restrict radial movement, this structure will cover a large area of ​​the outer surface of the spring contact finger, making it difficult to meet the requirements of subsequent automated inspection for full exposure of the workpiece. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide a conveying device that can stably clamp and position the spring contact finger without obstructing its outer surface.

[0005] To achieve the above objectives, the present invention provides a conveying device for preparing spring contact fingers with a positioning component, comprising: conveyor; The conveying device further includes: A positioning assembly is provided on the conveyor belt. The positioning assembly has a rotatable support platform. The support platform is provided with an inner support surface that can expand radially under centrifugal force. The inner support surface is used to tighten the spring contact finger from the inside. A visual inspection device is provided on one side of the conveyor belt for visual inspection of the spring contact finger when the support platform is rotating.

[0006] As a preferred embodiment of the present invention, the conveyor belt is a chain plate type conveyor belt, which includes a frame and a chain plate that is drivenly connected to the frame, and the positioning component is fixedly disposed on the chain plate.

[0007] As a preferred embodiment of the present invention, the support platform is connected to a first gear, and a first rack is fixedly installed on the frame. When the first gear meshes with the first rack, it drives the support platform to rotate.

[0008] As a preferred embodiment of the present invention, the support platform is provided with a plurality of sliding grooves in the radial direction, a slider is slidably disposed in the sliding groove, one end of the slider is fixedly connected to a spring, the other end of the spring is fixedly connected to the sliding groove, and an arc plate is connected to the slider, the plurality of arc plates forming an inner support surface.

[0009] As a preferred technical solution of the present invention, in the initial state, under the tension of the spring, the virtual radius of the inner support surface is smaller than the inner diameter of the spring finger; when the first gear disengages from the first rack, the centrifugal force disappears, the spring pulls the slider back, and the spring finger is released from the inner support surface.

[0010] As a preferred embodiment of the present invention, the frame is provided with a groove, the visual inspection device is installed in the groove, the groove is located within the stroke range of the first rack, and when the spring finger rotates through the groove under the centrifugal force, the visual inspection device completes 360-degree image acquisition coverage.

[0011] As a preferred embodiment of the present invention, the conveying device further includes a cleaning unit, which includes a liquid tank and a cleaning nozzle. The cleaning nozzle is disposed beside the rotation trajectory of the support platform and is used to clean the surface of the spring contact finger before the visual inspection.

[0012] As a preferred embodiment of the present invention, the cleaning unit further includes a piston pump, which comprises: case; Rotate the rotating shaft located in the housing; A second gear fixedly connected to the top end of the rotating shaft; A piston cylinder that is fixed to and communicates with the housing; The piston is slidably disposed in the piston cylinder, the second gear meshes with the second rack on the frame, and the rotating shaft drives the piston to reciprocate through the crank and rocker arm, pumping the cleaning fluid in the liquid tank into the cleaning nozzle.

[0013] As a preferred embodiment of the present invention, the length of the first rack is greater than the length of the second rack, so that after the second gear disengages from the second rack, the first gear remains engaged with the first rack, maintaining the continued rotation of the support platform; after the cleaning nozzle stops spraying, the continued rotation of the support platform causes the cleaning fluid remaining on the surface of the spring finger to be spun dry under centrifugal force, and then enters the detection area of ​​the vision inspection device.

[0014] The present invention also discloses a method of using a conveying device for preparing spring contact fingers with a positioning component, the method comprising the following steps: Step 1: Place the spring contact finger onto the inner support surface; Step 2: Start the conveyor belt. The positioning component moves with the conveyor belt. The support platform rotates during the movement. The centrifugal force causes the inner support surface to expand radially, tightening the spring contact finger from the inside. Step 3: As the support platform rotates, it drives the spring contact finger through the cleaning nozzle, and the cleaning fluid is sprayed onto the surface of the spring contact finger. Step 4: After the spraying stops, the support platform continues to rotate, and the centrifugal force will dry the cleaning liquid remaining on the surface of the spring contact fingers. Step 5: The rotating platform drives the spring contact finger through the vision inspection device to complete the 360-degree image acquisition coverage; Step 6: The support platform stops rotating, the centrifugal force disappears, the inner support surface retracts, the spring contact finger is released from the inner support surface, and it enters the storage box or the next process.

[0015] The beneficial effects of this invention are as follows: This invention uses a rotatable support platform on a conveyor belt, and an inner support surface on the support platform that can expand radially under centrifugal force to stably support the spring fingers from the inside, keeping each spring finger in a consistent posture and independently separated during the conveying process. The inner support surface only contacts the inner ring of the spring finger, fully exposing its outer surface, providing unobstructed visual conditions for automated detection. At the same time, the rotation of the support platform drives the spring fingers to rotate continuously in front of the visual inspection device, achieving 360-degree image acquisition coverage of the outer circumference of the spring fingers, and the detection state is consistent with its actual stress-induced opening during use. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall main structure of the present invention; Figure 2 This is a top view of the overall structure of the present invention; Figure 3 This is a top-view three-dimensional structural diagram of the entire invention; Figure 4 This is a schematic diagram of the overall bottom three-dimensional structure of the present invention; Figure 5 This is a partial three-dimensional structural diagram of the present invention; Figure 6 This is a top-view three-dimensional structural diagram of the support platform, first rack, second rack, clamping body, and upper end of the arc-shaped plate of the present invention; Figure 7 This is a bottom-view perspective three-dimensional structural diagram of the support platform, first rack, second rack, clamping body, arc plate, liquid tank, positioning plate, bearing seat, and bottom of the first gear of the present invention. Figure 8 This is a top-view three-dimensional structural diagram of the support platform, clamping body, arc plate, liquid tank, fixing frame, cleaning nozzle and upper end of the housing of the present invention; Figure 9 This is a partial cross-sectional three-dimensional structural diagram of the support platform, clamping body, arc plate, liquid tank, fixing frame, cleaning nozzle and shell of the present invention; Figure 10 For the present invention Figure 9 Enlarged structural diagram at point A in the middle; Figure 11 This is a three-dimensional structural diagram of the arc-shaped plate and slider in disassembled state according to the present invention; Figure 12 This is a half-sectional three-dimensional structural diagram of the liquid tank and shell of the present invention.

[0018] The components in the diagram are labeled as follows: 1. Frame; 2. Chain plate; 3. Positioning hole; 4. Groove; 5. Positioning plate; 6. Bearing seat; 7. Ball bearing; 8. Main shaft; 9. First gear; 10. First rack; 11. Support platform; 12. Spring contact finger; 13. Slide groove; 14. Slider; 15. Spring; 16. Clamp body; 17. First bolt hole; 18. Second bolt hole; 19. Fastening bolt; 20. Arc plate; 21. Fixing frame; 22. Cleaning nozzle; 23. Liquid tank; 24. Housing; 25. Rotating shaft; 26. Second gear; 27. Crank; 28. Rocker arm; 29. ​​Piston cylinder; 30. Piston; 31. Liquid extraction port; 32. Connecting nozzle; 33. Hose; 34. Counterweight ball; 35. Drain port; 36. Infusion tube; 37. Second rack. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments.

[0020] It should be noted that, unless otherwise defined, the technical or scientific terms used in this invention should have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar terms used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0021] Reference Figures 1 to 12The present invention discloses a conveying device for preparing spring contact fingers with positioning components, including a conveyor belt and a positioning component disposed on the conveyor belt. The conveyor belt is used to carry and drive the positioning component to move in a predetermined direction. The positioning component is used to position, clamp and adjust the posture of the spring contact fingers 12 during the conveying process.

[0022] like Figure 1 , Figure 2 As shown, the conveyor belt is preferably a chain plate type conveyor belt. The chain plate type conveyor belt includes a frame 1 and chain plates 2 that are driven and connected to the frame 1. The frame 1 serves as the supporting skeleton of the entire device and is usually made of welded steel structure. It has a drive sprocket and a driven sprocket at its two ends, respectively. The drive sprocket is driven to rotate by a drive motor, which drives the chain plates 2 to circulate on the frame 1 through the chain. The chain plates 2 are made of multiple rigid metal plates that are hinged together in sequence. Each chain plate 2 can rotate relative to each other when passing around the sprocket to adapt to turning. However, when running on a straight section, each chain plate 2 maintains a rigid connection and does not undergo tensile deformation, thereby providing a stable and reliable installation foundation for the positioning components.

[0023] The positioning component is fixedly mounted on the chain plate 2 and moves together with the chain plate 2. The frame 1 is also provided with a first rack 10, a second rack 37, a groove 4 and other auxiliary components along the movement trajectory of the positioning component.

[0024] Specifically, refer to Figure 3 , Figure 4 , Figure 5 The positioning component includes a positioning plate 5 fixedly mounted on the chain plate 2. The positioning plate 5 serves as the mounting base for the entire positioning component and is fixedly connected to the chain plate 2 by fasteners. A bearing seat 6 is mounted on the positioning plate 5. The bearing seat 6 is rotatably connected to the main shaft 8 via ball bearings 7. The main shaft 8 is vertically positioned, and its lower end is rotatably supported in the bearing seat 6 via ball bearings 7, while its upper end extends above the positioning plate 5.

[0025] Reference Figure 5 , Figure 6 and Figure 7 The first gear 9 is fixedly sleeved in the middle section of the main shaft 8, and the first rack 10 is fixedly installed on the frame 1. The first rack 10 extends along the movement direction of the chain plate 2. When the positioning component moves with the chain plate 2 to the position of the first rack 10, the first gear 9 meshes with the first rack 10. The linear motion of the chain plate 2 is converted into the rotational motion of the main shaft 8 through the gear and rack transmission pair. The gear and rack transmission has the characteristics of precise transmission ratio and smooth motion, which can ensure that the main shaft 8 obtains a stable rotational speed. When the positioning component continues to move to the end of the first rack 10, the first gear 9 disengages from the first rack 10, and the main shaft 8 decelerates until it stops rotating.

[0026] Reference Figure 5 , Figure 8The top of the spindle 8 is fixedly connected to a support platform 11. The support platform 11 is a disc-shaped structure, and its upper end surface forms a platform for supporting the spring contact finger 12. The support platform 11 is coaxially arranged with the spindle 8 and rotates together with the spindle 8. The clamping body 16 serves as a transitional connector between the spindle 8 and the support platform 11. Its lower end is fixedly connected to the spindle 8 and its upper end is fixedly connected to the support platform 11 to ensure the concentricity of the installation and the rotational stability of the support platform 11.

[0027] Reference Figure 6 , Figure 8 , Figure 11 The upper end face of the support platform 11 is provided with a plurality of sliding grooves 13 in the radial direction. The number of sliding grooves 13 is preferably 6 or 8, and they are evenly distributed along the circumference of the support platform 11. Each sliding groove 13 extends outward from the central area of ​​the support platform 11, and its cross-section is preferably a T-shaped groove or a dovetail groove structure.

[0028] Each slide groove 13 is slidably provided with a slider 14. The shape of the slider 14 is adapted to the cross-section of the slide groove 13 to ensure that the slider 14 can only slide in the radial direction of the slide groove 13 and cannot be dislodged from the slide groove 13. A spring 15 is fixedly connected to the inner end of the slider 14 (the end near the center of the support platform 11). The other end of the spring 15 is fixedly connected to the inner end wall of the slide groove 13. The spring 15 is a tension spring and always applies a pulling force toward the center of the support platform 11 to the slider 14.

[0029] The upper end of the slider 14 is detachably connected to an arc plate 20. Multiple arc plates 20 are distributed around the center of the support platform 11 and together form an inner support surface for supporting the inner ring of the spring contact finger 12. The outer surface of each arc plate 20 is a circular arc surface. Multiple circular arc surfaces together form a virtual cylindrical surface. The diameter of the cylindrical surface is adapted to the inner diameter of the spring contact finger 12.

[0030] It should be noted that the "virtual radius" mentioned in this application refers to the radius of a virtual cylindrical surface formed by fitting the outer surfaces of multiple arc-shaped plates 20 together. Since the arc-shaped plates 20 are distributed circumferentially, their outer surfaces are not a complete continuous cylindrical surface, but rather a discontinuous circumferential surface composed of multiple arc surface segments. Fitting these discontinuous arc surface segments circumferentially into a complete virtual cylindrical surface, the radius of this virtual cylindrical surface is the aforementioned "virtual radius". When each slider 14 is located at the inner end of the slide groove 13 under the tension of the spring 15, the diameter of the virtual cylindrical surface is smaller than the inner diameter of the spring contact finger 12, allowing the spring contact finger 12 to be fitted onto the outer side of the arc-shaped plate 20 without obstruction. When each slider 14 slides outward along the slide groove 13 under the action of centrifugal force, the virtual radius gradually increases until the outer surface of the arc-shaped plate 20 abuts against the inner ring of the spring contact finger 12, thereby achieving the tightening and fixing of the spring contact finger 12.

[0031] In the initial state (i.e., when the support platform 11 is not rotating), under the tension of the spring 15, each slider 14 is located at the inner end of the slide groove 13. The virtual radius of the inner support surface formed by multiple arc plates 20 is smaller than the inner diameter of the spring finger 12, which allows the spring finger 12 to be easily fitted onto the outer side of the arc plate 20 from above without being stretched.

[0032] When the support platform 11 rotates at high speed with the main shaft 8, each slider 14 overcomes the tension of the spring 15 under the action of centrifugal force and slides outward along the slide groove 13. When the slider 14 slides outward, it drives the arc plate 20 to move outward synchronously, and the virtual radius of the inner support surface increases, thereby tightening the inner ring of the spring contact finger 12 from the inside, and fixing the spring contact finger 12. The magnitude of the centrifugal force is proportional to the square of the rotation speed of the support platform 11. By adjusting the movement speed of the chain plate 2, the rotation speed of the first gear 9 can be changed, thereby adjusting the rotation speed and the magnitude of the centrifugal force of the support platform 11 to meet the clamping requirements of spring contact fingers 12 of different specifications.

[0033] When the first gear 9 disengages from the first rack 10, the support platform 11 loses its driving force. Under the action of frictional resistance, the rotation speed gradually decreases until it stops. The centrifugal force decreases and disappears. The slider 14 slides inward along the slide groove 13 and resets under the pulling force of the spring 15. The arc plate 20 retracts, the virtual radius of the inner support surface decreases, and the spring finger 12 is released from the inner support surface.

[0034] Reference Figure 8 , Figure 9 , Figure 10 , Figure 12 The conveying device also includes a cleaning unit, which is used to clean the surface of the spring contact finger 12 before visual inspection, removing oil, dust and other impurities attached to the surface to improve the authenticity and accuracy of subsequent visual inspection.

[0035] The cleaning unit includes a liquid tank 23, a piston pump, and a cleaning nozzle 22. The liquid tank 23 is fixedly mounted on the positioning plate 5 or the bearing seat 6 and moves together with the positioning assembly. The liquid tank 23 contains cleaning fluid, which can be deionized water, alcohol, or other suitable cleaning agents.

[0036] Reference Figure 12The liquid tank 23 has a connecting nozzle 32 connected inward to a flexible hose 33, and a counterweight ball 34 is connected to the end of the hose 33. The counterweight ball 34 has multiple through holes on its surface, allowing it to both absorb liquid and filter large particles of impurities. The density of the counterweight ball 34 is greater than that of the cleaning liquid, so no matter the position of the liquid tank 23, the counterweight ball 34 is always located at the lowest point inside the liquid tank 23, ensuring that the cleaning liquid can be absorbed normally even when the liquid level in the liquid tank 23 is low. At the same time, as the positioning component moves with the chain plate 2, the cleaning liquid in the liquid tank 23 is continuously shaken, and the counterweight ball 34 also moves accordingly, playing a role in agitating the cleaning liquid and preventing the solid components in the cleaning liquid from settling.

[0037] The piston pump is used to pump the cleaning fluid in the tank 23 to the cleaning nozzle 22, see reference. Figure 9 , Figure 12 The piston pump includes a housing 24, a rotating shaft 25, a second gear 26, a piston cylinder 29, and a piston 30. The housing 24 is fixedly mounted on a bearing seat 6 or a positioning plate 5. The rotating shaft 25 is rotatably mounted inside the housing 24, with its top end extending out of the housing 24 and fixedly connected to the second gear 26. The piston cylinder 29 is fixedly connected to the housing 24 and communicates internally with it. One end of the piston cylinder 29 has a liquid extraction port 31 and a liquid discharge port 35. The liquid extraction port 31 is connected to the liquid tank 23 through a pipeline, and the liquid discharge port 35 is connected to the cleaning nozzle 22 through an infusion pipe 36. Both the liquid extraction port 31 and the liquid discharge port 35 are equipped with one-way valves to prevent liquid backflow.

[0038] The piston 30 is slidably disposed inside the piston cylinder 29. The lower end of the rotating shaft 25 is fixedly connected to the crank 27. The free end of the crank 27 is hinged to one end of the rocker arm 28, and the other end of the rocker arm 28 is hinged to the piston 30. When the rotating shaft 25 rotates, the crank 27 rotates accordingly, and the rotational motion is converted into the reciprocating linear motion of the piston 30 in the piston cylinder 29 through the rocker arm 28.

[0039] Reference Figure 6 and Figure 12A second rack 37 is fixedly mounted on the frame 1. The second rack 37 extends along the movement direction of the chain plate 2 and is located on the same side of the frame 1 as the first rack 10, and is located upstream of the first rack 10. When the positioning component moves with the chain plate 2 to the position of the second rack 37, the second gear 26 meshes with the second rack 37. The linear motion of the chain plate 2 is converted into the rotational motion of the rotating shaft 25 through the gear and rack transmission pair. The rotating shaft 25 drives the chain plate 25 through the crank 27 and the rocker arm 28. The piston 30 reciprocates in the piston cylinder 29. When the piston 30 moves away from the piston cylinder 29, the one-way valve in the suction port 31 opens and the one-way valve in the discharge port 35 closes, and the cleaning fluid is drawn into the piston cylinder 29 from the liquid tank 23. When the piston 30 moves closer to the piston cylinder 29, the one-way valve in the suction port 31 closes and the one-way valve in the discharge port 35 opens, and the cleaning fluid is squeezed into the infusion tube 36 and finally sprayed out from the cleaning nozzle 22 onto the surface of the spring contact finger 12.

[0040] Reference Figure 6 and Figure 7 The cleaning nozzle 22 is located beside the rotation path of the support platform 11 and is mounted on the bearing seat 6 or the positioning plate 5 via the fixing bracket 21. A damping rod is rotatably mounted on the fixing bracket 21, and the cleaning nozzle 22 is fixedly connected to the damping rod. By rotating the damping rod, the spray angle of the cleaning nozzle 22 can be adjusted to meet the cleaning needs of spring fingers 12 of different specifications.

[0041] Reference Figure 1 , Figure 2 The frame 1 is provided with a groove 4, and a visual inspection device (not shown in the figure) is installed in the groove 4. The groove 4 is located within the stroke range of the first rack 10 and is located downstream of the cleaning unit (i.e. behind the location of the second rack 37). The visual inspection device is preferably an industrial camera, which is used to perform appearance inspection on the spring contact finger 12 while the support table 11 is rotating.

[0042] The grooves 4 are arranged in an arc along the movement trajectory of the positioning component, forming a semi-enclosed detection channel. When the support platform 11 drives the spring contact finger 12 to rotate through the groove 4, the industrial camera continuously acquires surface images of the spring contact finger 12 from multiple angles. Since the spring contact finger 12 is in a state of being stretched open by centrifugal force and continuously rotating when passing through the groove 4, the industrial camera can complete the 360-degree image acquisition coverage of the entire circumference surface of the spring contact finger 12. The acquired images are transmitted to the image processing system for analysis and processing to determine whether the spring contact finger 12 has surface scratches, plating defects, unqualified solder joints, or other appearance defects.

[0043] Reference Figure 1 , Figure 6 , Figure 7The length of the first rack 10 is greater than the length of the second rack 37. This length difference constitutes the timing control mechanism for the automatic switching between cleaning and inspection processes.

[0044] Specifically, when the positioning component moves along the direction of movement of the chain plate 2, it first passes the position of the second rack 37. At this time, the second gear 26 meshes with the second rack 37, the piston pump starts to work, and the cleaning nozzle 22 sprays cleaning fluid onto the surface of the spring contact finger 12. Since the starting end of the first rack 10 is located in front of the starting end of the second rack 37, the first gear 9 has already meshed with the first rack 10, the support platform 11 is in a rotating state, and the spring contact finger 12 has been tightened by centrifugal force.

[0045] As the positioning assembly continues to advance to the end of the second rack 37, the second gear 26 disengages from the second rack 37, the piston pump stops working, and the cleaning nozzle 22 stops spraying. However, since the length of the first rack 10 is greater than the length of the second rack 37, the first gear 9 remains engaged with the first rack 10, and the support platform 11 continues to rotate. The continuous rotation of the support platform 11 causes the residual cleaning fluid on the surface of the spring contact finger 12 to be spun dry under centrifugal force.

[0046] When the positioning component continues to advance to the end of the first rack 10, the first gear 9 disengages from the first rack 10, and the support platform 11 stops rotating. Before this, the support platform 11 has driven the spring finger 12 to rotate through the position of the groove 4, and the vision inspection device has completed the 360-degree image acquisition coverage of the spring finger 12.

[0047] Through the above timing control, the three processes of cleaning, spin drying and visual inspection are completed automatically in sequence, without the need for additional sensors or electronic control components. The structure is simple and highly reliable.

[0048] Reference Figure 11 The arc plate 20 and the slider 14 are detachably connected. Specifically, one end of the arc plate 20 is provided with a clamping body 16, which has a first bolt hole 17. The slider 14 has a second bolt hole 18 that matches the first bolt hole 17. The arc plate 20 and the slider 14 can be fixedly connected by screwing in the fastening bolt 19. When it is necessary to produce spring contact fingers 12 with different inner diameter specifications, only the arc plate 20 of the corresponding size needs to be replaced, without replacing the entire slider 14 or the support platform 11.

[0049] Reference Figure 2 , Figure 7 and Figure 9The positioning plate 5 has positioning holes 3 on its surface, and the chain plate 2 also has corresponding positioning holes 3. By screwing in fasteners that pass through the two positioning holes 3 in sequence, the positioning component can be detachably installed on the chain plate 2. When it is necessary to replace the positioning component with a different specification or to perform equipment maintenance, the entire positioning component can be removed from the chain plate 2 simply by removing the fasteners.

[0050] Reference Figures 1 to 12 The working process of this device is as follows: The worker or automatic feeding mechanism places the spring contact 12, which has been completed in the previous process (such as welding), onto the inner support surface formed by multiple arc plates 20 at the upper end of the support platform 11. At this time, the support platform 11 is in a stationary state. Under the tension of the spring 15, the virtual radius of the inner support surface is smaller than the inner diameter of the spring contact 12, and the spring contact 12 can be easily inserted.

[0051] When the chain conveyor belt is started, the chain plate 2 moves slowly at the set speed. The positioning component moves forward with the chain plate 2. When the positioning component moves to the starting end of the first rack 10, the first gear 9 and the first rack 10 begin to mesh. The linear motion of the chain plate 2 drives the main shaft 8 and the support platform 11 to rotate through the gear and rack transmission pair. The centrifugal force generated by the rotation of the support platform 11 causes each slider 14 to overcome the tension of the spring 15 and slide outward along the slide groove 13. The arc plate 20 moves outward accordingly, and the virtual radius of the inner support surface increases, thus tightening the inner ring of the spring contact finger 12 from the inside.

[0052] When the platform 11 is rotating, it drives the spring contact finger 12 to continue moving forward. When the positioning component moves to the starting end of the second rack 37, the second gear 26 meshes with the second rack 37, and the piston pump starts to work. The rotating shaft 25 drives the piston 30 to reciprocate through the crank 27 and rocker arm 28, pumping the cleaning fluid in the liquid tank 23 into the cleaning nozzle 22. The cleaning fluid is sprayed onto the surface of the rotating spring contact finger 12 to clean its surface.

[0053] When the positioning component moves to the end of the second rack 37, the second gear 26 disengages from the second rack 37, the piston pump stops working, and the cleaning nozzle 22 stops spraying. Since the length of the first rack 10 is greater than the length of the second rack 37, the first gear 9 remains engaged with the first rack 10. The support platform 11 continues to rotate. The continuous rotation of the support platform 11 causes the cleaning liquid remaining on the surface of the spring contact finger 12 to be spun dry under the action of centrifugal force, thus achieving drying.

[0054] The carrier platform 11 rotates and drives the cleaned and dried spring finger 12 forward. As the spring finger 12 passes through the groove 4, the industrial camera installed in the groove 4 continuously captures images, completing a 360-degree image acquisition coverage of the entire circumference of the spring finger 12.

[0055] When the positioning component moves to the end of the first rack 10, the first gear 9 disengages from the first rack 10, the support platform 11 loses its driving force, and the rotation speed gradually decreases until it stops under the action of frictional resistance. The centrifugal force disappears, and the slider 14 slides inward along the slide groove 13 to reset under the pulling force of the spring 15. The arc plate 20 retracts, the virtual radius of the inner support surface decreases, and the spring finger 12 is released from the inner support surface. When the positioning component moves with the chain plate 2 to the end of the conveyor belt and begins to turn around the sprocket and face downward, the released spring finger 12 falls off naturally under the action of gravity and falls into the storage box set below the end of the conveyor belt, or enters the entrance of the next process. A guide slope can be set at the entrance of the storage box so that the fallen spring finger 12 slides into the storage box in a uniform posture, which is convenient for subsequent packaging or assembly.

[0056] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the invention is limited to these examples; within the framework of the invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity. Any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the invention should be included within the scope of protection of the invention.

Claims

1. A conveying device for preparing spring contact fingers with a positioning component, comprising: conveyor; The characteristic feature is that the conveying device further includes: The positioning component is provided on the conveyor belt. The positioning component has a rotatable support platform (11). The support platform (11) is provided with an inner support surface that can expand radially under the action of centrifugal force. The inner support surface is used to tighten the spring finger (12) from the inside. A visual inspection device is provided on one side of the conveyor belt for visual inspection of the spring finger (12) when the support platform (11) is rotating. When the support platform (11) stops rotating, the centrifugal force disappears, the inner support surface retracts, and the spring finger (12) is released from the inner support surface and enters the storage box or the next process.

2. The conveying device for preparing spring contact fingers with positioning components according to claim 1, characterized in that, The conveyor belt is a chain plate type conveyor belt, which includes a frame (1) and a chain plate (2) that is connected to the frame (1) for transmission. The positioning component is fixedly installed on the chain plate (2).

3. The conveying device for preparing spring contact fingers with positioning components according to claim 2, characterized in that, The support platform (11) is connected to a first gear (9), and a first rack (10) is fixedly installed on the frame (1). When the first gear (9) meshes with the first rack (10), it drives the support platform (11) to rotate.

4. The conveying device for preparing spring contact fingers with positioning components according to claim 3, characterized in that, The support platform (11) has multiple sliding grooves (13) in the radial direction. A slider (14) is slidably arranged in the sliding groove (13). One end of the slider (14) is fixedly connected to a spring (15), and the other end of the spring (15) is fixedly connected to the sliding groove (13). An arc plate (20) is connected to the slider (14), and multiple arc plates (20) form an inner support surface.

5. The conveying device for preparing spring contact fingers with positioning components according to claim 4, characterized in that, In the initial state, under the tension of the spring (15), the virtual radius of the inner support surface is smaller than the inner diameter of the spring finger (12); when the first gear (9) disengages from the first rack (10), the centrifugal force disappears, the spring (15) pulls the slider (14) back, and the spring finger (12) is released from the inner support surface.

6. The conveying device for preparing a spring contact finger with a positioning component according to claim 5, characterized in that, The frame (1) is provided with a groove (4), and the visual inspection device is installed in the groove (4). The groove (4) is located within the stroke range of the first rack (10). When the spring finger (12) rotates through the groove (4) under the centrifugal force, the visual inspection device completes the 360-degree range image acquisition coverage.

7. The conveying device for preparing a spring contact finger with a positioning component according to claim 6, characterized in that, The conveying device also includes a cleaning unit, which includes a liquid tank (23) and a cleaning nozzle (22), the cleaning nozzle (22) being disposed beside the rotation path of the support platform (11) for cleaning the surface of the spring finger (12) before the visual inspection.

8. The conveying device for preparing a spring contact finger with a positioning component according to claim 7, characterized in that, The cleaning unit also includes a piston pump, which comprises: Shell (24); Rotate the rotating shaft (25) located in the housing (24); A second gear (26) is fixedly connected to the top end of the rotating shaft (25); Piston cylinder (29) fixed and connected to housing (24); The piston (30) is slidably disposed in the piston cylinder (29), the second gear (26) meshes with the second rack (37) on the frame (1), and the rotating shaft (25) drives the piston (30) to reciprocate through the crank (27) and rocker (28) provided, pumping the cleaning liquid in the liquid tank (23) into the cleaning nozzle (22).

9. The conveying device for preparing a spring contact finger with a positioning component according to claim 8, characterized in that, The length of the first rack (10) is greater than the length of the second rack (37), so that after the second gear (26) disengages from the second rack (37), the first gear (9) remains engaged with the first rack (10), maintaining the continued rotation of the support platform (11); after the cleaning nozzle (22) stops spraying, the continuous rotation of the support platform (11) causes the residual cleaning liquid on the surface of the spring finger (12) to be spun dry under centrifugal force, and then enters the detection area of ​​the vision inspection device.

10. A method of using the conveying device for preparing a spring contact finger with a positioning component as described in claim 9, characterized in that, The method includes the following steps: Step 1: Place the spring contact finger (12) onto the inner support surface; Step 2: Start the conveyor belt. The positioning component moves with the conveyor belt. The support platform (11) rotates during the movement. The centrifugal force causes the inner support surface to expand radially, thus tightening the spring contact finger (12) from the inside. Step 3: The support platform (11) rotates and drives the spring contact finger (12) through the cleaning nozzle (22), and the cleaning liquid is sprayed onto the surface of the spring contact finger (12); Step 4: After the spraying stops, the support platform (11) continues to rotate, and the centrifugal force will dry the cleaning liquid remaining on the surface of the spring contact finger (12). Step 5: The carrier platform (11) rotates and drives the spring contact finger (12) through the vision detection device to complete the 360-degree range image acquisition coverage; Step 6: The support platform (11) stops rotating, the centrifugal force disappears, the inner support surface retracts, and the spring contact finger (12) is released from the inner support surface and enters the storage box or the next process.

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