A ball screening and feeding system and method

Abstract

The present application relates to the technical field of bearing, in particular to a kind of ball screening and feeding system and method.The system includes the storage component for storing and providing ball, screening component.Screening component includes second screening unit.The outlet of storage component, second screening unit are sequentially communicated, form the supply channel of ball.Second screening unit includes second screening body, first side edge, second side edge.First side edge, second side edge are respectively connected with second screening body and set in the two sides of supply channel.First side edge, second side edge between long strip-shaped opening group supply channel.The minimum spacing of long strip-shaped opening gradually increases to set value along the supply direction of supply channel, and keep set value to set length.In this way, the problem of low efficiency of ball outer diameter detection is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of bearings, in particular to a ball screening and feeding system and method. BACKGROUND

[0002] Balls can be applied between the inner ring and the outer ring of a bearing to make the relative rotation of the inner ring and the outer ring smooth. Before the balls are installed between the inner ring and the outer ring, the outer diameter of the balls is usually detected to ensure the assembly quality. When it is detected that the actual diameter of the ball is within the range of the designed diameter of the ball, the ball is installed between the inner ring and the outer ring.

[0003] At present, when small batches are produced, a micrometer is used to measure the outer diameter of the ball. When large batches are produced, a three-coordinate measuring machine can be used. Each time, a ball is positioned on the positioning seat of the measuring machine and then measured. However, these methods can only measure the outer diameter of a single ball each time, and then the balls with an outer diameter not meeting the standard are removed, which is too low in efficiency. SUMMARY

[0004] To solve the problem of low efficiency of ball outer diameter detection, the present application provides a ball screening and feeding system and method.

[0005] In a first aspect, the present application provides a ball screening and feeding system, which comprises:

[0006] A storage assembly for storing and providing the balls;

[0007] A screening assembly, wherein the screening assembly comprises a second screening unit; the outlet of the storage assembly and the second screening unit are sequentially communicated to form a feeding channel of the balls;

[0008] The second screening unit comprises a second screening body, a first side edge portion and a second side edge portion; the first side edge portion and the second side edge portion are connected with the second screening body and arranged on both sides of the feeding channel; the long-strip-shaped opening formed between the first side edge portion and the second side edge portion constitutes the feeding channel; the minimum distance of the long-strip-shaped opening gradually increases to a set value along the feeding direction of the feeding channel and remains the set value to a set length;

[0009] The ball screening and feeding system comprises a screening state; the screening state comprises that when the balls roll on the long-strip-shaped opening, the minimum distance D2 of the outer spherical surface of the balls at the abutting positions of the first side edge portion and the second side edge portion gradually increases.

[0010] In some embodiments, the screening state further comprises that a plurality of balls supplied by the storage assembly abut each other and enter the long-strip-shaped opening to roll.

[0011] In some embodiments, the screening assembly further comprises a first screening unit; the outlet of the storage assembly, the first screening unit, and the second screening unit are sequentially communicated to form a supply channel of the balls; the first screening unit comprises a first screening body, a first sidewall, and a second sidewall; the first screening body is connected to the second screening body at an end away from the outlet of the storage assembly; the first sidewall and the second sidewall are respectively connected to the first screening body and are arranged on two sides of the supply channel; a spacing space formed between the first sidewall and the second sidewall constitutes part of the supply channel;

[0012] The screening state comprises that, when the balls roll on the spacing space, the minimum distance D1 between the outer spherical surface of the balls and the abutment position of the first sidewall and the second sidewall is less than D2.

[0013] In some embodiments, the minimum distance D1 is a fixed value.

[0014] In some embodiments, α1≥α2; wherein α1 is the minimum included angle between the supply channel formed between the first sidewall and the second sidewall and a set horizontal plane; and α2 is the minimum included angle between the supply channel formed between the first sidewall and the second sidewall and the set horizontal plane.

[0015] In some embodiments, the ball screening and supply system comprises a counting assembly; the counting assembly comprises a second driving part and a counting unit; the second driving part is drivingly connected to the counting unit.

[0016] The standby state of the ball screening and supply system comprises that the outlet of the storage assembly is communicated with a channel in the counting unit, the balls in the storage assembly move to the channel in the counting unit, and the communication between the channel in the counting unit and the long-strip-shaped opening is disconnected.

[0017] The screening state further comprises that the second driving part drives the counting unit to move, so that the communication between the outlet of the storage assembly and the channel in the counting unit is disconnected, the channel in the counting unit is communicated with the long-strip-shaped opening, and the balls in the channel in the counting unit move to the long-strip-shaped opening.

[0018] In some embodiments, the counting assembly further comprises a collection bucket.

[0019] The screening state further comprises that the channel of the counting assembly is communicated with the long-strip-shaped opening through the collection bucket, so that the balls in the channel in the counting unit move to the long-strip-shaped opening through the collection bucket.

[0020] In some embodiments, the storage assembly comprises a storage unit, a lifting unit, and a conveying unit; the storage unit is used to store and provide the balls; the conveying unit is connected to and communicates with the storage unit; the lifting unit moves so that the lifting unit, the conveying unit, and the second screening unit are sequentially communicated to form a supply channel for the balls.

[0021] The screening state further comprises that the lifting unit moves so that the balls on the lifting unit move through the conveying unit to the long-strip-shaped opening.

[0022] In some embodiments, the conveying unit comprises a conveying pipe, a detection hole, and a monitor; the detection hole penetrates from the outer circumferential surface of one side of the conveying pipe to the outer circumferential surface of the other side of the conveying pipe; the lifting unit moves so that the lifting unit, the conveying pipe, and the second screening unit are sequentially communicated to form a supply channel for the balls; the monitoring radiation emitted by the monitor enters the conveying pipe through the detection hole; the smallest angle between the monitoring radiation and the central axis of the conveying pipe on the side of the detection hole is within a set range.

[0023] The screening state further comprises that, during the movement of the lifting unit so that the balls on the lifting unit move through the conveying unit to the long-strip-shaped opening, the balls pass through the monitoring radiation.

[0024] In a second aspect, the present application provides a ball screening and supplying method, which is applied to the ball screening and supplying system in any of the first aspect, and the ball screening and supplying method comprises the following steps.

[0025] Based on a screening instruction trigger, the storage assembly outputs the balls from the supply channel;

[0026] Based on the balls moving to respectively abut against the first side edge and the second side edge, the balls roll on the long-strip-shaped opening;

[0027] Based on the diameter of the balls being less than or equal to a set value, the balls fall from the long-strip-shaped opening at a distance of a set value;

[0028] Based on the diameter of the balls being greater than the set value, the balls move out of the outlet on the long-strip-shaped opening.

[0029] To solve the problem of low efficiency of ball outer diameter detection, the present application has the following advantages:

[0030] The ball is stored and provided by the storage assembly, the outlet of the storage assembly and the second screening unit of the screening assembly are sequentially communicated to form a ball supply channel, and the ball can roll in the supply channel; the first side edge part and the second side edge part of the second screening unit are connected with the second screening body and located on both sides of the supply channel, and the long strip-shaped opening formed by the two parts constitutes the supply channel, the minimum distance of which gradually increases to a set value along the direction of the supply channel and remains the set value to a set length (5%-15% of the total length of the supply channel), and this part constitutes the set screening channel. When the ball is in the screening state, the minimum distance D2 between the outer spherical surface and the abutment position of the first side edge part and the second side edge part gradually increases when rolling on the long strip-shaped opening, so that the abutment position of the first side edge part and the second side edge part and the outer spherical surface of the ball is closer and closer to the ball center, and the length of the ball abutting on the two parts when rolling a circle gradually decreases, thereby reducing the speed of the ball center along the length direction of the long strip-shaped opening; the ball with a smaller outer diameter can effectively fall along the thickness direction of the second screening body when rolling to the set screening channel, and the screening is completed; the ball with a qualified outer diameter falls to the designated position after rolling to the end of the long strip-shaped opening away from the storage assembly. At the same time, this way can make the screening assembly 30 output multiple balls to the long strip-shaped opening at a time, and screen the outer diameters of multiple balls at the same time, thereby improving the efficiency and solving the problem of low efficiency of ball outer diameter detection. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 A first perspective view of a ball screening and feeding system is shown;

[0032] Figure 2 A top view of a ball screening and feeding system is shown;

[0033] Figure 3 A front view of a ball screening and feeding system is shown;

[0034] Figure 4 A second perspective view of a ball screening and feeding system is shown;

[0035] Figure 5 A schematic view of a conveying pipe and a detection hole of a ball screening and feeding system is shown;

[0036] Figure 6 A schematic view of a screening assembly of a ball screening and feeding system is shown;

[0037] Figure 7 A cross-sectional view of a screening assembly of a ball screening and feeding system is shown;

[0038] Figure 8A sectional view of a counting unit of a ball screening and feeding system according to an embodiment is shown.

[0039] Figure 9 A schematic view of a ball screening and feeding method according to an embodiment is shown. Figure 2 A partial enlarged view of the ball screening and feeding system according to an embodiment is shown.

[0040] Figure 10 A schematic view of a ball screening and feeding method according to an embodiment is shown.

[0041] Reference numerals: 10, storage assembly; 11, storage unit; 111, storage box; 112, inlet; 113, outlet; 12, lifting unit; 121, first driving part; 122, lifting part; 13, conveying unit; 131, conveying pipe; 132, detection hole; 133, monitor; 20, counting assembly; 21, second driving part; 22, counting unit; 221, counting body; 222, counting channel; 23, collection hopper; 30, screening assembly; 31, first screening unit; 311, first screening body; 312, first side wall; 313, second side wall; 32, second screening unit; 321, second screening body; 322, first side ridge part; 323, second side ridge part. DETAILED DESCRIPTION

[0042] The present disclosure will now be discussed with reference to a number of example embodiments. It should be appreciated that these embodiments are discussed merely to provide a better understanding of, and thus enable the practice of, the present disclosure, and are not intended to represent the scope of the present disclosure.

[0043] As used herein, the term "comprising" and its variations are to be interpreted as open-ended terms meaning "including but not limited to". The term "based on" is to be interpreted as "at least partially based on". The terms "one embodiment" and "an embodiment" are to be interpreted as "at least one embodiment". The term "another embodiment" is to be interpreted as "at least one other embodiment". The terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "vertical", "horizontal", "lateral", "longitudinal", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments and are not intended to limit the indicated devices, elements, or components to having a specific orientation or being constructed and operated in a specific orientation. Furthermore, some of the above terms may be used to indicate other meanings besides orientations or positional relationships; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application according to the specific circumstances. In addition, the terms "installed", "set up", "equipped with", "connected", and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, elements, or components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. Furthermore, the terms "first," "second," etc., are mainly used to distinguish different devices, elements, or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0044] Before bearing assembly, to ensure stable operation, the outer diameter of the balls needs to be measured before they are installed onto the inner and outer rings of the bearing. Current methods for measuring the outer diameter of balls typically include using a micrometer or a coordinate measuring machine. While these methods provide accurate measurements, they are inefficient as they can only measure one ball at a time.

[0045] Example 1:

[0046] This embodiment discloses a ball-bearing screening and supply system, such as Figure 1 As shown, the ball screen supply system includes a storage component 10 and a screening component 30.

[0047] The storage assembly 10 can be used to store and provide the balls; by storing and supplying the balls through the storage assembly 10, the balls can continuously and stably enter the subsequent screening link, thereby providing sufficient material basis for the entire screening process.

[0048] The screening assembly 30 can include a second screening unit 32; as shown in Figure 6 , Figure 7 illustrated, one end (e.g., the left end as shown in Figure 7 ) of the second screening unit 32 close to the storage assembly 10 can be higher than the other end (e.g., the right end as shown in Figure 7 ) of the second screening unit 32, so that the balls can roll under the influence of gravity, reducing energy consumption. The outlet of the storage assembly 10 and the second screening unit 32 can be sequentially communicated to form a supply channel for the balls; the sequential communication between the outlet of the storage assembly 10 and the second screening unit 32 to form the supply channel can enable the balls to move in an orderly manner along a predetermined path, ensuring the continuity of the screening process and providing a stable conveying path for subsequent screening operations.

[0049] As shown in Figure 6 , the second screening unit 32 can include a second screening body 321, a first side edge 322, and a second side edge 323; the first side edge 322 and the second side edge 323 can be connected to the second screening body 321, respectively, and can be arranged on both sides of the supply channel; the long-strip-shaped opening formed between the first side edge 322 and the second side edge 323 can constitute part of the supply channel; the minimum distance of the long-strip-shaped opening can gradually increase to a set value along the supply direction of the supply channel (i.e., gradually increase to a set value from top to bottom as shown in Figure 2 ); the set value can be slightly greater than or equal to the lower limit of the design value of the ball outer diameter, for example: if the design value of the ball outer diameter is 30mm±0.1mm, then the lower limit of the design value of the ball outer diameter is 29.9mm, and the set value can be 29.9mm~29.95mm, and the set value can be maintained to a set length (the set length can be 5%~15% of the total length of the supply channel); the part of the supply channel with the set value of the width is the set screening channel; through such a structural arrangement, when the balls with a smaller outer diameter roll to the set screening channel, they can fall along the thickness direction of the second screening body 321 (i.e., fall from top to bottom as shown in Figure 3 ). Even if the initial speed of the balls is too fast, they can still effectively fall due to the sufficient length of the set screening channel, thereby achieving the screening of the balls.

[0050] The ball screening and feeding system can include a screening state; the screening state can include that the minimum distance D2 between the outer spherical surface of the ball and the abutting position of the first side edge portion 322 and the second side edge portion 323 gradually increases when the ball rolls on the long strip-shaped opening; in the screening state, the minimum distance D2 between the position where the outer spherical surface of the ball abuts against the first side edge portion 322 and the position where the outer spherical surface of the ball abuts against the second side edge portion 323 gradually increases when the ball rolls on the long strip-shaped opening, so that the abutting positions are closer and closer to the ball center, and the length of the ball that contacts the first side edge portion 322 and the second side edge portion 323 gradually decreases when the ball rolls one round, thereby reducing the moving speed of the ball center along the length direction of the long strip-shaped opening, further allowing the balls with a smaller outer diameter to accurately fall from the set screening channel, and allowing the balls with a qualified outer diameter to fall to the designated position after rolling to the end of the long strip-shaped opening away from the storage assembly 10, thereby solving the problem that the balls with a smaller outer diameter cannot fall due to high speed and are misjudged as qualified products. Meanwhile, this mode can allow the screening assembly 30 to output multiple balls to the long strip-shaped opening at a time, and screen the outer diameters of the multiple balls at the same time, thereby improving the efficiency.

[0051] Further, the screening state can further include that the multiple balls supplied by the storage assembly 10 abut against each other and enter the long strip-shaped opening to roll. The abutting position of the adjacent two balls is a deceleration abutting position. When the multiple balls abut against each other and roll, the rolling directions of the adjacent balls are the same, but the moving directions of the adjacent balls at the deceleration abutting position are opposite, thereby reducing the rolling speed of the balls through the friction effect. This structure can effectively prevent the balls with a smaller outer diameter from passing through the set screening channel at a high speed and not being separated, thereby avoiding the problem of misjudging qualified products.

[0052] Further, as shown in FIG. 1, Figure 6 The screening assembly 30 can further include a first screening unit 31; the outlet of the storage assembly 10, the first screening unit 31 and the second screening unit 32 are sequentially communicated to form a feeding channel of the balls; the first screening unit 31 includes a first screening body 311, a first side wall 312 and a second side wall 313; the first screening body 311 is connected with the second screening body 321 at the end away from the outlet of the storage assembly 10; the first side wall 312 and the second side wall 313 are respectively connected with the first screening body 311 and are arranged on both sides of the feeding channel; the interval space between the first side wall 312 and the second side wall 313 constitutes part of the feeding channel. The screening state can include that the minimum distance D1 between the outer spherical surface of the ball and the abutting position of the first side wall 312 and the second side wall 313 is smaller than D2 when the ball rolls on the interval space. Figure 9The dashed lines in the diagram represent the points where the ball abuts against the first sidewall 312 and the second sidewall 313, respectively. Because the minimum distance D1 between the positions where the outer spherical surface of the ball abuts against the first sidewall 312 and the positions where the outer spherical surface of the ball abuts against the second sidewall 313 is less than the minimum distance D2 between the positions where the outer spherical surface of the ball abuts against the first side edge 322 and the positions where the outer spherical surface of the ball abuts against the second side edge 323, the ball rolls faster within the space, allowing it to quickly catch up with and abut against the balls on the elongated opening, thus slowing it down. This prevents the ball from moving too fast, causing balls with smaller outer diameters to be unselected.

[0053] Furthermore, such as Figure 2 As shown, the minimum distance D1 between the position where the outer spherical surface of the ball abuts against the first sidewall 312 and the position where the outer spherical surface of the ball abuts against the second sidewall 313 can be set to a fixed value. By setting the minimum distance D1 to a fixed value, the ball in the interval space can roll faster, thus moving more quickly to abut against the ball in the elongated opening space, reducing the speed of the ball, allowing balls with smaller outer diameters to fall when passing through the set screening channel, thereby accurately screening out balls with smaller outer diameters. D1 can be 50%~80% of the minimum value of D2, which allows the ball to reduce the distance along the width direction of the first screening unit (i.e., as shown in the diagram) during its rolling between the first sidewall 312 and the second sidewall 313. Figure 2 The distance the ball moves (in the left and right directions as shown) improves the stability of the ball's rolling.

[0054] Furthermore, such as Figure 7 As shown, the minimum angle α1 between the supply channel formed between the first sidewall 312 and the second sidewall 313 and the set horizontal plane can be greater than or equal to the minimum angle α2 between the supply channel formed between the first side edge 322 and the second side edge 323 and the set horizontal plane. This angular relationship allows the balls between the first sidewall 312 and the second sidewall 313 to roll faster, quickly catching up with and abutting the balls on the elongated opening, thereby reducing the ball speed and ensuring that balls with smaller outer diameters fall accurately at the set screening channel.

[0055] In other embodiments, such as Figure 1 , Figure 2As shown, the ball screening and feeding system can include a counting unit 22; the counting unit 22 includes a second driving part 21, the counting unit 22; the second driving part 21 is drivingly connected with the counting unit 22. The standby state of the ball screening and feeding system can include that the outlet of the storage assembly 10 is in communication with the passage of the counting unit 22, the balls in the storage assembly 10 move into the passage of the counting unit 22, the communication between the passage in the counting unit 22 and the long strip-shaped opening is disconnected. The screening state can further include that the second driving part 21 drives the counting unit 22 to move, so that the communication between the outlet of the storage assembly 10 and the passage in the counting unit 22 is disconnected, and the passage of the counting unit 22 is in communication with the long strip-shaped opening, so that the balls in the passage of the counting unit 22 move onto the long strip-shaped opening. This structure can accurately control the number of balls by adjusting the capacity of the passage in the counting unit 22, and ensure the stability and accuracy of the screening process.

[0056] In other embodiments, as shown, Figure 8 The counting unit 22 can include a counting body 221 and a counting passage 222. The counting body 221 is arranged between the outlet of the storage assembly 10 and the second screening unit 32. The counting body 221 is drivingly connected with the second driving part 21. The counting body 221 is slidingly connected with the storage assembly 10. The counting passage 222 penetrates from one end of the counting body 221 close to the outlet of the storage assembly 10 to the other end of the counting body 221 close to the second screening unit 32, and the counting passage 222 can be used to accommodate a predetermined number of balls. The second driving part 21 can drive the counting body 221 to move in the horizontal direction, control whether the counting passage 222 is in communication with the outlet of the storage assembly 10, so as to change the timing of the balls in the storage assembly 10 entering the counting passage 222. The second driving part 21 can drive the counting body 221 to move in the horizontal direction, control whether the counting passage 222 is in communication with the long strip-shaped opening on the second screening unit 32, so as to change the timing of the balls in the counting passage 222 entering the long strip-shaped opening on the second screening unit 32.

[0057] Further, as shown, Figure 3 The counting assembly 20 can further include a collection bucket 23. The screening state can further include that the passage of the counting assembly 20 is in communication with the long strip-shaped opening through the collection bucket 23, so that the balls in the passage of the counting unit 22 move onto the long strip-shaped opening through the collection bucket 23. The inner diameter of the collection bucket 23 gradually decreases from top to bottom, so as to ensure that only one ball enters the long strip-shaped opening from the bottom end of the collection bucket 23 at the same time, which can minimize the spacing between adjacent balls and slow down the mutual abutment, so that the balls with a smaller outer diameter can fall from the set screening passage, thereby improving the screening success rate of the balls with a smaller outer diameter.

[0058] Further, as shown, Figure 4As shown, the storage assembly 10 can include a storage unit 11, a lifting unit 12, and a conveying unit 13. The storage unit 11 is used to store and provide the balls. The conveying unit 13 is connected to and communicates with the storage unit 11. The lifting unit 12 is moved so that the lifting unit 12, the conveying unit 13, and the second screening unit 32 are sequentially communicated to form a supply channel for the balls. The screening state can further include that the lifting unit 12 is moved so that the balls on the lifting unit 12 are moved to the long-strip-shaped opening through the conveying unit 13. The lifting unit 12 can be arranged in the space surrounded by the storage unit 11. The top surface of the lifting unit 12 is provided with a downwardly recessed groove. The lifting unit 12 can be moved according to a predetermined program so that the top surface of the lifting unit 12 is lower than the top surface of the balls in the storage unit 11. The balls can roll into the groove of the lifting unit 12. Subsequently, the lifting unit 12 can be moved upward to communicate with the conveying unit 13 so that the balls are moved from the lifting unit 12 to the long-strip-shaped opening through the conveying unit 13, thereby performing the screening work of the balls and allowing the balls with a smaller outer diameter to fall from the set screening channel.

[0059] In some other embodiments, as shown in Figure 4 The storage unit 11 can include a storage box 111, an inlet 112, and an outlet 113. The storage box 111 can be used to store and provide the balls. The inlet 112 and the outlet 113 can respectively penetrate the inner and outer peripheral walls of the storage box 111. The inlet 112 and the outlet 113 are arranged at intervals. The inlet 112 can be used to input the balls into the storage box 111. The lifting unit 12 can include a first driving part 121 and a lifting part 122. The lifting part 122 can be slidingly connected to the storage box 111. The lifting part 122 can be drivingly connected to the first driving part 121. The top surface of the lifting part 122 is provided with a downwardly recessed groove. The lifting part 122 can be moved according to a predetermined program under the driving of the first driving part 121 so that the top surface of the lifting part 122 is lower than the top surface of the balls in the storage unit 11. The balls can roll into the groove of the lifting part 122. Subsequently, the lifting part 122 can be moved upward to communicate with the outlet 113 so that the balls are sequentially moved from the lifting part 122 to the long-strip-shaped opening through the outlet 113 and the conveying unit 13, thereby performing the screening work of the balls and allowing the balls with a smaller outer diameter to fall from the set screening channel.

[0060] Further, as shown in Figure 3 The conveying unit 13 can include a conveying pipe 131, a detection hole 132, and a monitor 133. As shown in Figure 5As shown, the detection hole 132 penetrates from the outer circumferential surface of one side of the conveying pipe 131 to the outer circumferential surface of the other side of the conveying pipe 131; the lifting unit 12 moves so that the lifting unit 12, the conveying pipe 131 and the second screening unit 32 are sequentially communicated to form a supply channel of the balls; the monitoring rays emitted by the monitor 133 enter the conveying pipe 131 through the detection hole 132; the smallest angle between the monitoring rays and the central axis of the conveying pipe 131 around the detection hole 132 is within a set range. The screening state can further include that, during the process that the lifting unit 12 moves so that the balls on the lifting unit 12 move to the long-strip-shaped opening through the conveying unit 13, the balls pass through the monitoring rays. If the monitoring rays are perpendicular to the conveying pipe 131 around the detection hole 132, then the line connecting the centers of the two adjacent balls in the conveying pipe 131 around the detection hole 132 is also perpendicular to the monitoring rays. In this way, the monitoring rays can irradiate the abutting position of the two adjacent balls, and the area of the abutting position is small, so part of the monitoring rays can not irradiate the abutting position, resulting in misjudgment of the monitoring result. For example, there are balls in the conveying pipe 131 around the detection hole 132, but the detection result is that there are no balls, which interferes with the normal work. The set range can be 80°-40°. In this way, the monitoring rays can be irradiated to the abutting position of the two adjacent balls in the conveying pipe 131 around the detection hole 132 as much as possible, and the balls can be directly irradiated more effectively, so that the ball screening work can be stably carried out.

[0061] Embodiment two

[0062] The embodiment discloses a ball screening and supplying method, which is applied to any ball screening and supplying system in embodiment one. As shown in the figure, Figure 10 The ball screening and supplying method includes steps S10-S40, and each step is described in detail as follows:

[0063] Step S10, based on a screening instruction trigger, the storage assembly 10 outputs the balls in the supply channel;

[0064] Step S20, based on the balls moving to abut against the first side edge 322 and the second side edge 323 respectively, the balls roll on the long-strip-shaped opening in the direction away from the storage assembly 10 under the action of gravity;

[0065] Step S30, based on the diameter of the balls being less than or equal to a set value, the balls fall from the part of the long-strip-shaped opening with a spacing of the set value to the lower side of the second screening unit 32, so that the balls with a smaller outer diameter are screened out; wherein the set value can be slightly greater than or equal to the lower limit of the design value of the ball outer diameter, for example: the design value of the ball outer diameter is 30mm±0.1mm, and the lower limit of the design value of the ball outer diameter is 29.9mm, and the set value can be 29.9mm-29.95mm.

[0066] Step S40, based on the diameter of the ball is greater than the set value, the ball from the long strip-shaped opening on the export, from the long strip-shaped opening on the export of the ball can be judged as qualified products, can be put into subsequent production work use. The long strip-shaped opening on the export can be the long strip-shaped opening away from the storage assembly 10 one end.

[0067] Those skilled in the art can understand that the above-mentioned embodiments are specific cases for realizing the present disclosure, and in actual application, various changes can be made in form and details without departing from the scope of the present disclosure.

Claims

1. A ball screening and feeding system, characterized by, The ball screening and feeding system comprises: a storage assembly for storing and providing the balls; a screening assembly comprising a second screening unit; the outlet of the storage assembly and the second screening unit are sequentially communicated to form a feeding channel of the balls; the second screening unit comprises a second screening body, a first side edge portion and a second side edge portion; the first side edge portion and the second side edge portion are respectively connected with the second screening body and are arranged on two sides of the feeding channel; a long-strip-shaped opening formed between the first side edge portion and the second side edge portion constitutes the feeding channel; the minimum distance of the long-strip-shaped opening gradually increases to a set value along the feeding direction of the feeding channel and remains the set value to a set length; the screening state of the ball screening and feeding system comprises that the minimum distance D2 between the outer spherical surface of the ball and the abutting position of the first side edge portion and the second side edge portion gradually increases when the ball rolls on the long-strip-shaped opening; the screening state further comprises that a plurality of balls provided by the storage assembly abut each other and enter the long-strip-shaped opening to roll.

2. The ball screening and feeding system according to claim 1, wherein the screening assembly further comprises a first screening unit; the outlet of the storage assembly, the first screening unit and the second screening unit are sequentially communicated to form a feeding channel of the balls; the first screening unit comprises a first screening body, a first side wall and a second side wall; the end of the first screening body away from the outlet of the storage assembly is connected with the second screening body; the first side wall and the second side wall are respectively connected with the first screening body and are arranged on two sides of the feeding channel; a spacing space formed between the first side wall and the second side wall constitutes the feeding channel; the screening state comprises that the minimum distance D1 between the outer spherical surface of the ball and the abutting position of the first side wall and the second side wall is less than D2 when the ball rolls on the spacing space.

3. The ball screening and feeding system according to claim 2, wherein the minimum distance D1 is a fixed value.

4. The ball screening and feeding system according to claim 2, wherein α1≥α2; wherein, α1 is the minimum included angle between the feeding channel formed between the first side wall and the second side wall and a set horizontal plane; and α2 is the minimum included angle between the feeding channel formed between the first side edge portion and the second side edge portion and the set horizontal plane.

5. The ball screening and feeding system according to claim 1, wherein the ball screening and feeding system comprises a counting assembly; the counting assembly comprises a second driving portion and a counting unit; the second driving portion is drivingly connected with the counting unit; the standby state of the ball screening and feeding system comprises that the outlet of the storage assembly is communicated with the channel in the counting unit, the balls in the storage assembly move to the channel in the counting unit, and the channel in the counting unit is disconnected with the long-strip-shaped opening. The screening state further includes that the second driving part drives the counting unit to move, disconnects the outlet of the storage assembly from the communication of the internal passage of the counting unit, and connects the internal passage of the counting unit with the long strip-shaped opening, so that the balls in the internal passage of the counting unit move to the long strip-shaped opening.

6. The ball screening and feeding system according to claim 5, wherein, The counting assembly further includes a collection bucket. The screening state further includes that the internal passage of the counting assembly communicates with the long strip-shaped opening through the collection bucket, so that the balls in the internal passage of the counting unit move to the long strip-shaped opening through the collection bucket.

7. The ball screening and feeding system according to claim 1, wherein, The storage assembly includes a storage unit, a lifting unit and a conveying unit; the storage unit is used for storing and providing the balls; the conveying unit is connected with and communicates with the storage unit; the lifting unit moves, so that the lifting unit, the conveying unit and the second screening unit are sequentially connected to form a feeding passage of the balls. The screening state further includes that the lifting unit moves, so that the balls on the lifting unit move to the long strip-shaped opening through the conveying unit.

8. The ball screening and feeding system according to claim 7, wherein, The conveying unit includes a conveying pipe, a detection hole and a monitor; the detection hole penetrates from the outer circumferential surface of one side of the conveying pipe to the outer circumferential surface of the other side of the conveying pipe; the lifting unit moves, so that the lifting unit, the conveying pipe and the second screening unit are sequentially connected to form the feeding passage of the balls; the monitoring radiation emitted by the monitor enters the conveying pipe through the detection hole; the smallest angle between the monitoring radiation and the central axis of the conveying pipe on the side of the detection hole is within a set range; The screening state further includes that, during the process that the lifting unit moves, so that the balls on the lifting unit move to the long strip-shaped opening through the conveying unit, the balls pass through the monitoring radiation.

9. A ball screening and feeding method characterized by comprising: The ball screening and feeding method is applied to the ball screening and feeding system according to any one of claims 1 to 8, and the ball screening and feeding method includes: Based on a screening instruction trigger, the storage assembly outputs the balls to the feeding passage; Based on the balls moving to respectively abut against the first side edge and the second side edge, the balls roll on the long strip-shaped opening; Based on the diameter of the balls being less than or equal to a set value, the balls fall from the long strip-shaped opening at a distance of a set value; Based on the diameter of the balls being greater than the set value, the balls move out of the outlet on the long strip-shaped opening.

Images