Large-size anode phosphor copper ball automatic production process and bidirectional treatment device

Abstract

The application discloses a large-size anode phosphor copper ball automatic production process and a bidirectional treatment device, and comprises the following steps: S1, diameter change treatment, cylindrical small-diameter long phosphor copper bar blanks are processed into cylindrical large-diameter long phosphor copper bar blanks through continuous extrusion; S2, straightening and cutting treatment, the large-diameter long phosphor copper bar blanks are subjected to straightening treatment by using a straightening device, and are transported to a cutting position for cutting after the treatment; S3, bidirectional treatment, the two ends of the cut short phosphor copper bar blanks are simultaneously subjected to polishing treatment by using a bidirectional polishing device; S4, forming treatment, the short phosphor copper bar blanks are subjected to extrusion treatment by a hydraulic cold header, and phosphor copper balls are formed and discharged; and S5, cleaning, drying and packaging treatment, the phosphor copper balls are packaged after cleaning and drying. The two ends of the phosphor copper bar blanks are subjected to forward and reverse alternating rotation polishing treatment by the bidirectional treatment device, and the generated metal scraps are removed by washing, and the workpieces are cooled, so that product quality problems of the phosphor copper balls can be effectively avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of phosphor copper ball manufacturing, in particular to a large-specification anode phosphor copper ball automatic production process and a bidirectional treatment device. BACKGROUND

[0002] As the most basic and active electronic product, the anode phosphor copper ball PCB has become an indispensable important part of the electronic information industry. Since the small ball has much edge material during electroplating, it is easy to form anode sludge, causing rough plating layer and turbid plating solution, thereby affecting the current efficiency, the performance of the plating solution and the quality of the plating layer. The large ball with a diameter of Φ50-Φ70 mm can be fully dissolved during electroplating, overcoming the quality problems of the plating piece such as burr and non-smoothness caused by the anode sludge formed by the small ball due to much edge material. In addition, the large ball has less edge material, which not only improves the utilization rate of the anode, but also reduces the frequency of plating solution replacement, saves the cost and greatly improves the production efficiency.

[0003] At present, some large printed circuit board enterprises have realized the advantages of the large ball in electroplating, and the market demand is increasing. In order to meet the growing demand of the market, improve the economic benefits and product competitiveness of enterprises, optimize the allocation of resources, adjust the product structure, enhance the ability to resist market risks and lay a solid foundation for the sustainable development of enterprises.

[0004] The existing large-specification anode phosphor copper ball automatic production process includes variable-diameter treatment, straightening and cutting treatment, forming treatment, cleaning and drying treatment. In the straightening and cutting treatment, a cold saw cutting machine (which can cut the surface flat and reduce the deformation and damage of the material) is usually used to cut the long phosphor copper bar blank. Some burrs or protrusions are inevitably generated on the cutting surface of the phosphor copper bar blank. The burrs or protrusions are mainly concentrated on the edges of the end of the phosphor copper bar blank. If the phosphor copper bar blank with burrs or protrusions is directly subjected to the forming treatment (the phosphor copper bar blank is extruded by a hydraulic cold header to become a large-specification anode phosphor copper ball), due to the existence of the burrs or protrusions, scratches, pits or other irregular marks will appear on the surface of the finished product, affecting the appearance and surface finish. In addition, the phosphor copper ball after extrusion may have uneven internal stress or micro-cracks. These defects will reduce the mechanical strength and fatigue life of the phosphor copper ball. Therefore, the present application provides a large-specification anode phosphor copper ball automatic production process and a bidirectional treatment device to meet the demand. SUMMARY

[0005] The purpose of the present application is to provide a large-specification anode phosphor copper ball automatic production process and a bidirectional treatment device, which directly forms the phosphor copper bar blank with burrs or protrusions to solve the technical problem of defective quality of the subsequent product.

[0006] To achieve the above object, the application provides the following technical scheme: a large-size anode phosphor copper ball automatic production process, characterized by comprising the following steps:

[0007] S1: diameter changing treatment, cylindrical small-diameter long phosphor copper rod blanks are processed into cylindrical large-diameter long phosphor copper rod blanks through continuous extrusion, and then are transported to the next station after cooling;

[0008] S2: straightening and cutting treatment, the large-diameter long phosphor copper rod blanks are straightened by using a straightening device, and then are transported to a cutting position after the treatment, and the long phosphor copper rod blanks are cut into a plurality of short phosphor copper rod blanks by using a cold saw cutting machine;

[0009] S3: bidirectional treatment, the short phosphor copper rod blanks are placed in a polishing station by using a mechanical hand, and the two ends of the cut short phosphor copper rod blanks are simultaneously subjected to bidirectional treatment by using a bidirectional polishing device, and cooling water is used to cool the polishing position during polishing;

[0010] S4: forming treatment, the polished short phosphor copper rod blanks are transported to a forming station of a hydraulic cold header by using a mechanical hand, and the short phosphor copper rod blanks are extruded by the hydraulic cold header to form phosphor copper balls which are then discharged;

[0011] S5: cleaning and drying treatment, the phosphor copper balls are cleaned by using a cleaning machine, and then are dried, and finally are packaged.

[0012] As a preferred embodiment in the embodiment, in step S3, the two ends of the short phosphor copper rod blanks are simultaneously subjected to forward and reverse alternating rotation polishing, and the rotation directions of the two ends of the short phosphor copper rod blanks are opposite.

[0013] As a preferred embodiment in the embodiment, in step S4, the mechanical hand is provided in two groups and is arranged between the bidirectional polishing device and the hydraulic cold header, and a temporary material placing platform is further arranged between the two groups of mechanical hands.

[0014] A bidirectional treatment device, comprising

[0015] Power telescopic rods: two are provided and are oppositely arranged on the bracket;

[0016] A moving unit is installed on the bracket and is used to drive the two power telescopic rods to move oppositely or reversely;

[0017] Polishing units: two are arranged in an up-down manner and are respectively connected with the output ends of the corresponding power telescopic rods, and are used to polish the two ends of the short phosphor copper rod blanks;

[0018] Driving unit: installed on the bracket, for driving two polishing units to do positive and negative alternating rotation, and the rotation of two polishing units is opposite.

[0019] As a preferred embodiment in the embodiment, the moving unit comprises a screw rod rotatably arranged on the bracket, the screw rod is provided with a positive thread segment and a reverse thread segment in an up-down manner, a ball nut is threadedly sleeved on the positive thread segment and the reverse thread segment, the side ends of the two ball nuts are fixedly connected with corresponding mounting plates, the two power telescopic rods are respectively arranged on the corresponding mounting plates, and the lower end of the screw rod is fixedly connected with an output shaft of a rotary motor arranged at the bottom of the bracket.

[0020] The polishing unit comprises a hollow cylinder with an open lower end and fixedly arranged on the mounting plate, a polishing top plate coaxially arranged in the hollow cylinder, a water outlet hole arranged on the polishing surface of the polishing top plate, and the water outlet hole being communicated with a water storage cavity of the polishing top plate, a plurality of L-shaped second polishing blocks circumferentially arranged at the bottom of the polishing top plate, a first polishing block connected with each of the second polishing blocks, and the polishing surface of the first polishing block being outwardly inclined at the lower end, a stand fixedly arranged at the upper end of the polishing top plate, a hollow pipe rotatably connected with the stand through a sealing bearing, a first elastic sealing ring sleeve wrapped on the outer wall of the hollow pipe, the outer wall of the first elastic sealing ring sleeve being in sliding abutment with the inner wall of a second elastic sealing ring sleeve arranged on the hollow cylinder, a liquid inlet channel in the stand communicated with the water storage cavity, the upper end of the stand being rotatably connected with the output end of the power telescopic rod, the liquid inlet of the liquid inlet channel being connected with a liquid inlet pipe through a rotary joint, a liquid outlet pipe arranged on the outer wall of the hollow cylinder in a downward inclined manner and communicated with the inner cavity of the hollow cylinder, an annular air bag arranged on the inner cavity of the hollow cylinder close to the opening and connected with an automatic air charging and discharging device arranged on the mounting plate through a connecting pipe, an air passage connected with the outer environment and the inner cavity of the hollow cylinder arranged in the inner cavity of the upper stand, the two hollow cylinders arranged in an up-down manner being connected through a hollow telescopic pipe, and a waterproof and breathable layer arranged in the inner cavity of the air passage.

[0021] The driving unit comprises two U-shaped plates and two transmission gears respectively mounted on the corresponding mounting plates, two reciprocating screw rods rotatably arranged on the two U-shaped plates, two moving nuts sleeved on the two reciprocating screw rods, and the side end of the moving nut is fixedly connected with a rack, the rack is in gear connection with the corresponding transmission gear, the transmission gear is in gear connection with a plurality of driving teeth arranged in a circle on the outer wall of the corresponding stand, a first rod body and a second rod body are rotatably arranged on the two U-shaped plates, the lower end of the second rod body and the lower end of the first rod body are connected through a bevel gear between the corresponding reciprocating screw rod, the upper end of the second rod body is fixedly connected with a spline, and the upper end of the spline is slidably arranged in the spline cavity of the first rod body, and the second rod body and the output shaft of the driving motor arranged on the mounting plate are connected through a connecting gear.

[0022] The two power telescopic rods, the driving motor and the rotating motor are electrically connected with the PLC controller.

[0023] As a preferred embodiment in the embodiment, the upper end of the upper annular air bag is provided as an inclined surface, and is provided as left high and right low, an annular groove is arranged on the inclined surface, the annular groove is provided as left high and right low, and the liquid inlet of the drainage pipe is connected with the lowest part of the annular groove.

[0024] As a preferred embodiment in the embodiment, the total water output of the water outlet holes per unit time is less than the drainage capacity of the drainage pipe per unit time.

[0025] As a preferred embodiment in the embodiment, an automatic rapid drainage unit is further provided, and after the polishing top plate is washed and flushed by using cooling water, the drainage pipe is automatically controlled to rapidly drain.

[0026] As a preferred embodiment in the embodiment, the two side ends of the first polishing block are provided with inclined surfaces, and the two inclined surfaces are provided in a spread shape, a flow guide block is fixed on the two sides of the first polishing block, and a flow guide inclined surface is arranged on the flow guide block.

[0027] In summary, the technical effects and advantages of the present application are as follows:

[0028] The present application has reasonable structure, and the two ends of the phosphor copper bar blank are alternately polished and processed in positive and negative directions by the bidirectional processing device, and the generated metal chips are removed by water washing, and the workpiece is cooled, so that the product quality problem of the phosphor copper ball can be effectively avoided.

[0029] In the application, the automatic quick liquid discharge unit is arranged, the hollow cylinder cavity and the outside are automatically controlled in communication or not by the centrifugal force, the liquid discharge speed of the liquid discharge pipe is accelerated, the fluid circulation is accelerated, the scouring strength of the fluid to the object is enhanced, and the object is washed more cleanly.

[0030] In the application, the eight-shaped slope and the flow guide slope are arranged, the forward and reverse stirring of the polishing top plate is carried out, the fluid can move obliquely upward and scour the polishing top plate, and the polishing top plate is scoured more thoroughly. BRIEF DESCRIPTION OF DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0032] Figure 1 It is a schematic diagram of the three-dimensional structure of the application;

[0033] Figure 2 It is Figure 1 It is a schematic diagram of the local structure of the polishing unit in the application;

[0034] Figure 3 It is Figure 2 It is a schematic diagram of the cross section and local enlarged structure of the upper hollow cylinder in the application;

[0035] Figure 4 It is Figure 3 It is a schematic diagram of the polishing top plate structure in the application;

[0036] Figure 5 It is Figure 3 It is a schematic diagram of the enlarged structure at A in the application;

[0037] Figure 6 Figure 3 It is a schematic diagram of the structure at B and C in the application;

[0038] Figure 7 It is Figure 1 It is a schematic diagram of the driving unit structure in the application;

[0039] Figure 8 It is Figure 1 It is a schematic diagram of the moving unit structure in the application;

[0040] Figure 9 It is Figure 1 It is a schematic diagram of the side view and local enlarged structure in the application;

[0041] Figure 10 It is a state diagram of the phosphor copper bar blank being clamped and polished by the mechanical hand; It is a state diagram of the phosphor copper bar blank being clamped and polished by the mechanical hand;

[0042] Figure 11 A schematic view of a hollow cylinder cross-sectional structure is shown below.

[0043] In the figure: 1, support; 2, power telescopic rod; 3, polishing unit; 31, hollow cylinder; 32, vertical column; 33, rotary joint; 34, liquid inlet pipe; 35, driving tooth; 36, liquid inlet flow channel; 37, water outlet hole; 38, polishing top plate; 39, water storage cavity; 310, second polishing block; 311, first polishing block; 312, flow guide block; 313, water leakage hole; 314, liquid discharge pipe; 315, air cylinder; 316, connecting pipe; 317, extrusion rod; 318, annular air bag; 319, second elastic sealing ring sleeve; 320, first elastic sealing ring sleeve; 321, hollow pipe; 322, annular groove; 4, moving unit; 41, screw rod; 42, ball nut; 43, rotary motor; 44, mounting plate; 5, driving unit; 51, U-shaped plate; 52, reciprocating screw rod; 53, moving nut; 54, rack; 55, transmission gear; 56, umbrella-shaped gear; 57, first rod body; 58, spline; 59, connecting gear; 510, second rod body; 511, driving motor; 6, air passage; 7, waterproof air-permeable layer; 8, hollow telescopic pipe; 9, narrow opening; 10, ball; 11, elastic sealing gasket; 12, conical blocking block; 13, return spring; 14, connecting channel. DETAILED DESCRIPTION

[0044] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0045] Embodiment: Referring to Figures 1-3 The automatic production process of a large-size positive phosphor copper ball shown includes the following steps:

[0046] S1: diameter changing treatment, cylindrical small-diameter long phosphor copper rod blanks are processed into cylindrical large-diameter long phosphor copper rod blanks through continuous extrusion, and after cooling, are transferred to the next station;

[0047] S2: straightening and cutting treatment, the large-diameter long phosphor copper rod blanks are subjected to straightening treatment by using a straightening device, and after the treatment, are transferred to a cutting station, and the long phosphor copper rod blanks are cut into a plurality of short phosphor copper rod blanks by using a cold saw cutting machine;

[0048] S3: bidirectional treatment, the short phosphor copper rod blanks are placed in a polishing station by using a mechanical hand, bidirectional treatment is simultaneously performed on both ends of the cut short phosphor copper rod blanks by using a bidirectional polishing device, and cooling water is used to cool the polishing part during polishing.

[0049] In order to avoid the burrs or protrusions of the two cutting surfaces of the short phosphor copper bar blank from affecting the quality of the subsequent phosphor copper ball finished product, a bidirectional treatment is arranged before the forming treatment, the two ends of the short phosphor copper bar blank are polished at the same time by using a bidirectional polishing device, the working efficiency can be improved, and the polishing position of the short phosphor copper bar is cooled by using cooling water. Since the end part of the short phosphor copper bar blank is locally heated due to friction, local overheating is easily caused, and then the hardness of the phosphor copper ball after forming is inconsistent, which affects the service life. At the same time, the metal chips generated on the short phosphor copper bar blank due to polishing can be carried away by cooling water, so as to avoid the influence of the accumulation of residual metal chips on the quality of the phosphor copper ball finished product after extrusion forming.

[0050] S4: forming treatment, the polished short phosphor copper bar blank is transported to the forming station of the hydraulic cold header by using the manipulator, the short phosphor copper bar blank is extruded by the hydraulic cold header, and the phosphor copper ball is formed and then discharged;

[0051] S5: cleaning and drying treatment, the phosphor copper ball is cleaned by using a cleaning machine, and then dried, and finally packaged.

[0052] As a preferred embodiment in this embodiment, in step S3, the two ends of the short phosphor copper bar blank are simultaneously polished by forward and reverse alternating rotation, and the rotation directions of the two ends of the short phosphor copper bar blank are opposite.

[0053] The polishing is performed in a forward and reverse alternating rotation mode. By alternating the rotation direction, the polishing of the upper end of the metal rod can be more uniform, and the grooves or unevenness caused by polishing in one direction can be avoided. Forward and reverse alternating polishing can more effectively eliminate scratches and defects on the surface, and forward and reverse alternating rotation polishing can reduce one-way wear between the polishing equipment and the workpiece, thereby prolonging the service life of the polishing equipment.

[0054] Since the short phosphor copper bar blank is clamped and fixed by the manipulator during polishing, in order to maintain the stability of the phosphor copper bar blank during polishing, the rotation directions of the two ends of the short phosphor copper bar blank are opposite, so that the friction forces acting on the upper and lower ends of the phosphor copper bar blank are opposite, thereby effectively maintaining the stability of the phosphor copper bar blank during polishing.

[0055] As a preferred embodiment in this embodiment, in step S4, the manipulator is provided in two groups, and is arranged between the bidirectional polishing device and the hydraulic cold header. A temporary material placing platform is further arranged between the two groups of manipulators.

[0056] After the straightening and cutting process is completed, a set of robotic arms clamps the cut phosphor bronze billet to the grinding station for grinding. After grinding, it is placed on a temporary feeding platform and then returned to the cutting station for gripping and grinding. Meanwhile, another set of robotic arms clamps the phosphor bronze billet on the temporary feeding platform to the forming station for extrusion forming, which can improve work efficiency.

[0057] refer to Figure 1 A bidirectional processing device, comprising

[0058] Power telescopic rod 2: Two rods are provided, both installed on bracket 1 and positioned opposite each other;

[0059] Mobile unit 4: mounted on the bracket 1, used to drive the two power telescopic rods 2 to move relative to each other or in opposite directions;

[0060] Grinding unit 3: There are two units arranged vertically and connected to the output end of the corresponding power telescopic rod 2, which are used to grind both ends of the short phosphor bronze rod blank.

[0061] Drive unit 5: mounted on the bracket 1, used to drive the two grinding units 3 to rotate alternately in opposite directions, and the rotation of the two grinding units 3 is in the opposite direction.

[0062] As a preferred embodiment of this example, Figures 1-9 As shown, the moving unit 4 includes a screw 41 rotatably mounted on the bracket 1. The screw 41 has a forward thread section and a reverse thread section arranged vertically. Both the forward thread section and the reverse thread section are threaded with ball nuts 42. The side ends of the two ball nuts 42 are fixedly connected to the corresponding mounting plates 44. The two power telescopic rods 2 are respectively mounted on the corresponding mounting plates 44. The lower end of the screw 41 is fixedly connected to the output shaft of the rotary motor 43 mounted at the bottom of the bracket 1.

[0063] The grinding unit includes a hollow cylinder 31 with an open lower end fixed to the mounting plate 44. A grinding top plate 38 is coaxially arranged inside the hollow cylinder 31. A water outlet 37 is provided on the grinding surface of the grinding top plate 38, and the water outlet 37 communicates with the water storage cavity 39 of the grinding top plate 38. Multiple L-shaped second grinding blocks 310 are arranged at circumferential intervals at the bottom of the grinding top plate 38. Each of the multiple second grinding blocks 310 is connected to a first grinding block 311, and the lower end of the grinding surface of the first grinding block 311 is inclined outwards. A column 32 is fixed to the upper end of the grinding top plate 38, and the column 32 is rotatably connected to a hollow tube 321 via a sealed bearing. A first elastic sealing ring 320 is wrapped around the outer wall of the hollow tube 321, and the outer wall of the first elastic sealing ring 320 is connected to a second elastic sealing ring 320 on the hollow cylinder 31. The inner wall of the sealing ring 319 slides against the column 32. The inside of the column 32 is provided with a liquid inlet channel 36 that communicates with the water storage chamber 39. The upper end of the column 32 is rotatably connected to the output end of the power telescopic rod 2. The liquid inlet of the liquid inlet channel 36 is connected to the liquid inlet pipe 34 through a rotary joint 33. The outer wall of the hollow cylinder 31 is provided with a downwardly inclined drain pipe 314 that communicates with the inner cavity of the hollow cylinder 31. The inner cavity of the hollow cylinder 31 near the opening is provided with an annular airbag 318, and the annular airbag 318 is connected to an automatic inflation and deflation device installed on the mounting plate 44 through a connecting pipe 316. The inner cavity of the upper column 32 is provided with a ventilation channel 6 that connects the outside world and the inner cavity of the hollow cylinder 31. The two hollow cylinders 31 arranged vertically are connected by a hollow telescopic pipe 8. The inner cavity of the ventilation channel 6 is provided with a waterproof and breathable layer 7.

[0064] The drive unit 5 includes two U-shaped plates 51 and two transmission gears 55 respectively mounted on the corresponding mounting plates 44. Each of the two U-shaped plates 51 is rotatably equipped with a reciprocating lead screw 52, ​​and each of the two reciprocating lead screws 52 is fitted with a movable nut 53. The side end of the movable nut 53 is fixedly connected to a rack 54. The rack 54 meshes with the corresponding transmission gear 55. The transmission gear 55 meshes with multiple drive teeth 35 arranged circumferentially on the outer wall of the corresponding column 32. A first rod 57 and a second rod 510 are rotatably mounted on the U-shaped plate 51. The lower ends of the second rod 510 and the first rod 57 are connected to the corresponding reciprocating lead screw 52 via bevel gears 56. A spline 58 is fixed to the upper end of the second rod 510, and the upper end of the spline 58 is slidably disposed in the spline cavity of the first rod 57. The second rod 510 is connected to the output shaft of the drive motor 511 provided on the mounting plate 44 via a connecting gear 59.

[0065] The two telescopic rods 2, the drive motor 511 and the rotary motor 43 are all electrically connected to the PLC controller.

[0066] Before operation, the inlet pipe 34 is connected to the water pump (which is electrically connected to the PLC controller) through a connecting hose, and the inlet end of the pump is inserted into the liquid surface of the water tank. The outlet pipe 36 is connected to the water filter through a connecting hose, and the outlet end of the water filter is connected to the water tank (not inserted into the liquid surface of the water tank, and the water tank is connected to the external air pressure). The water in the water tank can be pumped to the hollow cylinder 31 for grinding, cooling and cleaning through the pump. The wastewater can enter the water filter through the outlet pipe 36 for filtration and then flow back to the water tank, which can form a water cycle and save water.

[0067] After the cutting process is completed, the robotic arm clamps the cut phosphor bronze billet and places it in the grinding station. At this time, the rotary motor 43 works, driving the two mounting plates 44 to move relative to each other through the cooperation of the screw 41 and the two ball nuts 42. This ultimately drives the two hollow cylinders 31 to move downwards, so that the upper and lower ends of the phosphor bronze billet are respectively located in the inner cavity of the corresponding hollow cylinder 31. At this time, the automatic inflation and deflation device automatically inflates the corresponding annular air bladder 318, causing the inner side of the annular air bladder 318 to expand outwards and finally abut against the outer wall of the phosphor bronze billet to form a seal. After sealing, the liquid pump, the power telescopic rod 2, and the drive motor 511 are controlled to work. The drive motor 511 drives the first rod body 57 and the second rod body 510 to rotate in the same direction. With the cooperation of the bevel gear 56, the upper and lower reciprocating screws 52 can ultimately rotate in opposite directions. On the same reciprocating screw 52, ​​as the reciprocating screw 52 rotates, its corresponding moving nut 42 will reciprocate through the rack 54. 4 is connected to the transmission gear 55, which in turn is inserted into the column 32, ultimately driving the grinding top plate 38 to perform continuous alternating forward and reverse rotation. The two power telescopic rods 2 drive the two grinding top plates 38 to move relative to each other, causing the first grinding block 311 on the rotating grinding top plate 38 to contact the edge of the short phosphor bronze rod blank for grinding. During grinding, cooling water is discharged from the outlet 37 to cool and clean the grinding area. Wastewater containing metal shavings can be discharged through the drain pipe 314. The grinding top plate 38 continues to move relative to the ground surface. The second grinding block 310 will grind the edge of the short phosphor bronze rod blank. Finally, the grinding surface of the grinding top plate 38 will grind the end face of the short phosphor bronze rod blank. After grinding is completed, the automatic inflation and deflation device will release the gas in the annular airbag 318. The annular airbag 318 will contract, the seal will be released, the rotary motor 43 and the liquid pump will stop working, and at the same time the drive motor 511 will rotate in the opposite direction to drive the mounting plate 44 to return to its original position. The two power telescopic rods 2 will work to drive the grinding top plate 38 to return to its original position.

[0068] It should be noted that: First, when the moving unit 4 drives the two mounting plates 44 to move relative to each other, the first rod 7 slides upward relative to the spline 58. Throughout the grinding process, the upper end of the spline 58 does not move out of the spline cavity of the first rod 57. At the same time, the spline 58 causes the first rod 57 and the second rod 510 to rotate or stop simultaneously; Second, as Figure 9 As shown, the automatic inflation / deflation device includes an air cylinder 315 with an internal return spring 13. The air cylinder 315 is mounted on a bracket 1. A compression rod 317 is slidably mounted on the air cylinder 315. An elastic sealing sleeve is wrapped around the outer wall surface of the end of the compression rod 317 located in the inner cavity of the air cylinder. The outer wall of the elastic sealing sleeve slides against the inner wall of the air cylinder 315. The inner cavity of the air cylinder 315 is connected to the inner cavity of the annular airbag 38 through a pipe 316. A stop block adapted to the compression rod 317 is provided on the mounting plate 44. Its working principle is as follows: when the two mounting plates 44 drive the grinding top plate 38 to move relative to each other, during this process, the mounting plates 44... The baffle set above will contact the end of the extrusion rod 317 and extrude the gas in the air cylinder 315 into the annular air bag 318, thereby causing the annular air bag 318 to expand outward and abut against the outer wall of the short phosphor bronze rod blank to form a seal (after the seal is formed, the two mounting plates 44 are held in place under the control of the PLC controller), realizing automatic inflation. When the two mounting plates 44 move in opposite directions, the extrusion rod 317 returns to its original position through the action of the return spring 13. At this time, part of the gas in the annular air bag 318 flows back into the air cylinder 315, the annular air bag 318 contracts, and the seal between it and the short phosphor bronze rod blank is automatically released; three, as Figure 1As shown, the hollow telescopic tube 8 includes a first hollow tube located above and a second hollow tube located below. An elastic sealing ring is wrapped around the outer wall of the second hollow tube. The upper end of the second hollow tube is located within the inner cavity of the first hollow tube. The outer wall of the elastic sealing ring slides against the inner wall of the first hollow tube. The inner cavities of the first and second hollow tubes are connected. Throughout the grinding process, the upper end of the second hollow tube does not move out of the inner cavity of the first hollow tube. By cooperating with the airflow channel 6 (where liquid splashes due to the rotation of the grinding top plate 38, and the splashed liquid cannot fly out of the hollow cylinder 31 due to the waterproof and breathable layer 7, effectively preventing liquid splashing), it ensures that the inner cavities of the two hollow cylinders 31, sealed by the annular airbag 318, are connected to the outside, facilitating the smooth discharge of wastewater. Fourth, a gap is provided between two adjacent first grinding blocks 311 and two adjacent second grinding blocks 310. This gap allows the flow of grinding debris and coolant during grinding, which helps prevent overheating and the accumulation of grinding debris. To improve the polishing effect; fifth, the hollow cylinder 31 can be completely sealed by the first elastic sealing ring 320, the second elastic sealing ring 319 and the annular airbag 318, avoiding liquid splashing and overflow due to the rotation of the polishing top plate 38, while not affecting the movement of the column 32 relative to the hollow cylinder 31, and the first elastic sealing ring 320 and the second elastic sealing ring 319 do not come into contact or separate during the entire polishing process; fifth, a water storage cavity 39 can also be provided on the first polishing block 311. The matching drain hole 313 can flush and cool the outside of the phosphor bronze rod blank. Combined with the water outlet 37 to rinse the upper end of the phosphor bronze rod blank, it can achieve a comprehensive cleaning of the phosphor bronze rod blank. The liquid outlet end of the water outlet 37 is set outward, while the liquid outlet end of the drain hole is set downward. This design makes the high-pressure water sprayed from the water outlet 37 and the drain hole have a good flushing and cooling effect on the phosphor bronze rod. Sixth, the forward and reverse stirring can make the water collide and flow, and the flowing water helps to accelerate the drainage speed.

[0069] As a preferred embodiment of this example, Figure 3 and Figure 6 As shown, the upper end of the annular airbag 318 is set as an inclined surface, with the left side higher than the right side. An annular groove 322 is inclinedly arranged on the inclined surface, with the left side higher than the right side. The inlet of the drain pipe 314 is connected to the lowest point of the annular groove 322.

[0070] The purpose of this design is to concentrate the droplets (the droplets remaining on the inner wall of the hollow cylinder 31 after polishing) into the inclined annular groove 322, and finally discharge them from the drain pipe 314 along the inclined flow channel. This can prevent the droplets from falling onto the ground or work platform, save water, and facilitate water recycling.

[0071] In a preferred embodiment of this invention, the total amount of water discharged from the plurality of water outlets 312 per unit time is less than the amount of water discharged from the drain pipe 314 per unit time.

[0072] The purpose is to ensure that the liquid level inside the empty cylinder 31 remains in a rising state during grinding. When the liquid rises and submerges the grinding top plate 38, the first grinding block 311 and the second grinding block 310, which rotate in opposite directions, can stir the water in both directions, causing the water flow to collide and thus wash the grinding top plate 38 and the first grinding block 311 and the second grinding block 310 on it. At the same time, the stirred water flow can also wash away stubborn metal shavings on the short phosphor bronze rod blank, which can effectively remove metal shavings from various parts and avoid residual metal shavings from affecting product quality, making each part cleaner. The specific operation is as follows:

[0073] During use, after grinding is completed, the power telescopic rod 2 drives the rotating grinding top plate 38 to return to its original position. At this time, as the water outlet 37 continues to discharge high-pressure water to rinse the top of the phosphor bronze billet, as the water level rises, the water level will submerge the grinding top plate 38. The rotating grinding top plate 38 forms a forward and reverse stirring of the water flow through the side ends of the first grinding block 311 and the second grinding block 310. The forward and reverse stirring causes the water flow to impact, thereby forming a rinsing brush on the grinding top plate 38, the first grinding block 311 and the second grinding block 310, which can wash away the metal chips attached to their grinding surfaces. After rinsing is completed (by controlling the rinsing time), the liquid pump and drive motor 511 are stopped, the grinding top plate 38 stops rotating, and the liquid containing metal chips in the hollow cylinder 31 will be discharged from the drain pipe 314.

[0074] It should be noted that the first grinding block 311 and the second grinding block 310 are spaced apart, so that the whole of the first grinding block 311 and the second grinding block 310 can be regarded as a stirring rod, which can form a good stirring of the cooling water. With the alternating forward and reverse rotation, it is more conducive to the intense collision of the cooling water, which is beneficial to the washing away of metal shavings.

[0075] As a preferred embodiment of this invention, an automatic rapid drainage unit is also provided, which automatically controls the drainage pipe 314 to quickly drain the liquid after the polishing cover 38 has been cleaned and rinsed with cooling water.

[0076] like Figure 3 and Figure 5As shown, the automatic rapid drainage unit includes a ball 10 installed in the air passage 6, and a narrow opening 9 is provided on the right side of the ball 10. A rolling channel is provided on the left side of the ball 10 at an angle, and the rolling channel is set with the left side higher than the right side. The rolling channel is connected to the air passage 6 through a connecting channel 15. The two ends of the connecting channel 15 are located on both sides of the narrow opening 9. A conical blocking block 12 is provided in the inner cavity of the rolling channel and is provided on the outer surface of the ball 10. A vent hole is provided at the axis of the conical blocking block 12. An elastic sealing gasket 11 is provided on the blocking end face of the conical blocking block 12.

[0077] Its working principle is as follows: In the upper hollow cylinder 31, when the grinding top plate 38 rotates, the centrifugal force causes the ball bearing 10 to press tightly against the elastic sealing gasket 11, thus forming a seal in the inner cavity of the upper and lower hollow cylinders 31. The pump draws water into the upper and lower hollow cylinders 31. As the water level in the upper hollow cylinder 31 rises, the internal pressure increases. This increase in internal pressure affects the drainage speed of the water outlet 37 and the drain pipe 314. Since the water is sprayed out from the water outlet 37 (high-pressure water), the change in internal pressure has a smaller impact on the drain pipe 314. The water flow rate is greater than that of the water outlet 37, so the increase in internal pressure will accelerate the drainage speed of the drain pipe 314 (at this time, the liquid level rise rate in the hollow cylinder 31 will decrease), which can accelerate the circulation of fluid and enhance the scouring intensity of the fluid on the object, thus making the object cleaner. When the grinding top plate 38 stops rotating, its ball bearings 10 move towards the narrow opening 9 and come into contact with it due to their own gravity. At this time, the outside air will communicate with the inner cavity of the hollow cylinder 31 through the connecting channel 8, which can avoid the negative pressure in the hollow cylinder 31 and reduce the drainage speed of the drain pipe 314, thereby improving the cleaning efficiency.

[0078] It should be noted that the bottom of the hollow cylinder 3 can be tilted, with its lowest point located near the drain pipe 314.

[0079] As a preferred embodiment of this example, Figure 4 As shown, both sides of the first grinding block 311 are provided with inclined surfaces, and the two inclined surfaces are arranged in a figure-eight shape. Both sides of the first grinding block 311 are fixed with guide blocks 312, and the guide blocks 312 are provided with guide inclined surfaces.

[0080] When the grinding plate 38 rotates in both directions, the water flow collides with the inclined surface on the first grinding block 311 and flows along the inclined surface. With the obstruction and guiding effect of the guide inclined surface on the fluid, the fluid can move obliquely upward and wash the grinding plate 38, making the grinding plate 38 more thoroughly washed.

[0081] It is important to note that the inclination angle of the ramp (i.e., the angle between it and the horizontal plane) should be controlled between 15 and 20°, and the inclination angle of the guide ramp (i.e., the angle between it and the horizontal plane) should be controlled between 30 and 45°. This allows the water flow to thoroughly clean the grinding plate 38 over a large area while ensuring that the water flow has a high impact intensity (which is beneficial for cleaning stubborn metal shavings), thus effectively achieving a thorough cleaning of the grinding plate 38.

[0082] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automated production process for large-size anode phosphor bronze balls, characterized in that: Includes the following steps: S1: Diameter reduction process, the cylindrical small-diameter long phosphor bronze billet is expanded into a cylindrical large-diameter long phosphor bronze billet through a continuous extrusion press, and then cooled and transferred to the next station. S2: Straightening and cutting process. The long phosphor bronze billet with a large diameter is straightened using a straightening device. After the process is completed, it is transferred to the cutting position and the long phosphor bronze billet is cut into multiple short phosphor bronze billets using a cold saw cutting machine. S3: Two-way processing. The robot arm places the short phosphor bronze billet in the grinding station. The two-way grinding device grinds both ends of the cut short phosphor bronze billet at the same time. Cooling water is used to cool the grinding area during the grinding process. S4: Forming process: The polished short phosphor bronze billet is transported to the forming station of the hydraulic cold heading machine by a robotic arm. The short phosphor bronze billet is extruded by the hydraulic cold heading machine and formed into phosphor bronze balls before being discharged. S5: Cleaning and drying process. The phosphor bronze balls are cleaned using a cleaning machine, dried after cleaning, and finally packaged. The bidirectional processing device applied in step S3 includes... Power telescopic rod (2): Two rods are provided, both installed on the bracket (1) and positioned opposite each other; Moving unit (4): mounted on the bracket (1), used to drive the two power telescopic rods (2) to move relative to each other or in opposite directions; Grinding unit (3): There are two units arranged vertically and connected to the output end of the corresponding power telescopic rod (2) respectively, for grinding both ends of the short phosphor bronze rod blank; Drive unit (5): mounted on the bracket (1), used to drive the two grinding units (3) to rotate alternately in opposite directions, and the rotation of the two grinding units (3) is in opposite directions; The moving unit (4) includes a screw (41) rotatably mounted on the bracket (1). The screw (41) has a forward thread section and a reverse thread section arranged vertically. Both the forward thread section and the reverse thread section are threaded with ball nuts (42). The side ends of the two ball nuts (42) are fixedly connected to the corresponding mounting plates (44). The two power telescopic rods (2) are respectively mounted on the corresponding mounting plates (44). The lower end of the screw (41) is fixedly connected to the output shaft of the rotary motor (43) mounted at the bottom of the bracket (1). The grinding unit (3) includes a hollow cylinder (31) with an open lower end and fixed to the mounting plate (44). A grinding top plate (38) is coaxially arranged inside the hollow cylinder (31). A water outlet hole (37) is provided on the grinding surface of the grinding top plate (38), and the water outlet hole (37) communicates with the water storage cavity (39) of the grinding top plate (38). A plurality of L-shaped second grinding blocks (310) are arranged at circumferential intervals at the bottom of the grinding top plate (38). Each of the two grinding blocks (310) is connected to a first grinding block (311), and the lower end of the grinding surface of the first grinding block (311) is inclined outward. The upper end of the grinding top plate (38) is fixed with a column (32), and the column (32) is rotatably connected to a hollow tube (321) through a sealed bearing. The outer wall of the hollow tube (321) is wrapped with a first elastic sealing ring (320), and the outer wall of the first elastic sealing ring (320) and the hollow cylinder (31) are provided with a second elastic sealing ring. The inner wall of the sealing ring (319) slides against the water. The inside of the column (32) is provided with a liquid inlet channel (36) communicating with the water storage chamber (39). The upper end of the column (32) is rotatably connected to the output end of the power telescopic rod (2). The liquid inlet of the liquid inlet channel (36) is connected to the liquid inlet pipe (34) through a rotary joint (33). The outer wall of the hollow cylinder (31) is provided with a drain pipe (314) communicating with the inner cavity of the hollow cylinder (31). The hollow cylinder (319) is provided with a drain pipe (314) communicating with the inner cavity of the hollow cylinder (31) at an angle downward. 1) An annular airbag (318) is provided on the inner cavity near the opening, and the annular airbag (318) is connected to the automatic inflation and deflation device installed on the mounting plate (44) through the connecting pipe (316). The inner cavity of the upper column (32) is provided with a ventilation channel (6) connecting the outside and the inner cavity of the hollow cylinder (31). The two hollow cylinders (31) arranged vertically are connected by a hollow telescopic pipe (8). The inner cavity of the ventilation channel (6) is provided with a waterproof and breathable layer (7).

2. The automated production process for large-size anode phosphor bronze balls according to claim 1, characterized in that: In step S3, both ends of the short phosphor bronze rod blank are simultaneously subjected to alternating forward and reverse rotation grinding, and the grinding rotation directions of the two ends of the short phosphor bronze rod blank are opposite.

3. The automated production process for large-size anode phosphor bronze balls according to claim 1, characterized in that: In step S4, the robotic arms are configured in two groups, both positioned between the bidirectional grinding device and the hydraulic cold heading machine, and a temporary material feeding platform is also provided between the two groups of robotic arms.

4. The automated production process for large-size anode phosphor bronze balls according to claim 1, characterized in that: The drive unit (5) includes two U-shaped plates (51) and two transmission gears (55) respectively mounted on the corresponding mounting plates (44). Each of the two U-shaped plates (51) is rotatably equipped with a reciprocating lead screw (52), and each of the two reciprocating lead screws (52) is fitted with a movable nut (53). The side end of the movable nut (53) is fixedly connected to a rack (54). The rack (54) meshes with the corresponding transmission gear (55). The transmission gear (55) meshes with multiple drive teeth (35) arranged circumferentially on the outer wall of the corresponding column (32). A first rod (57) and a second rod (510) are rotatably mounted on the U-shaped plate (51). The lower ends of the second rod (510) and the first rod (57) are connected to the corresponding reciprocating lead screw (52) via bevel gears (56). A spline (58) is fixed to the upper end of the second rod (510), and the upper end of the spline (58) is slidably mounted in the spline cavity of the first rod (57). The second rod (510) is connected to the output shaft of the drive motor (511) mounted on the mounting plate (44) via a connecting gear (59). Both of the power telescopic rods (2), the drive motor (511) and the rotary motor (43) are all electrically connected to the PLC controller.

5. The automated production process for large-size anode phosphor bronze balls according to claim 1, characterized in that: The upper end of the above-mentioned annular airbag (318) is set as an inclined surface, and is set with the left side higher than the right side. An annular groove (322) is inclined on the inclined surface, and the annular groove (322) is set with the left side higher than the right side. The inlet of the drain pipe (314) is connected to the lowest point of the annular groove (322).

6. The automated production process for large-size anode phosphor bronze balls according to claim 5, characterized in that: An automatic rapid drainage unit is also provided, which automatically controls the drainage pipe (314) to quickly drain the liquid after the grinding top plate (38) has been cleaned and rinsed with cooling water.

7. The automated production process for large-size anode phosphor bronze balls according to claim 1, characterized in that: Both sides of the first grinding block (311) are provided with inclined surfaces, and the two inclined surfaces are arranged in a figure-eight shape. Both sides of the first grinding block (311) are fixed with guide blocks (312), and the guide blocks (312) are provided with guide inclined surfaces.

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