Ball spinning machine

Abstract

The invention relates to the technical field of spinning machining, in particular to a ball spinning machine which comprises a frame used for supporting, a core mold capable of ascending and descending is arranged in the frame, a pipe blank can be arranged outside the core mold in a sleeving mode, a spinning assembly capable of rotating is installed below the core mold, the ball spinning machine further comprises a material returning mechanism capable of ascending and descending, and the material returning mechanism can clamp the outer ring of the pipe blank. A sliding block capable of ascending and descending is installed on the material returning mechanism, an inserting rod capable of stretching out and drawing back in the axial direction of the inserting rod is rotatably installed on the sliding block and can rotate between the horizontal direction and the vertical direction, and a limiting groove is formed in the upper end of the core mold. In the spinning working state, the sliding block slides to the lower end of the material returning mechanism, the inserting rod extends and horizontally extends, the inserting rod is inserted into the positioning groove and the limiting groove at the same time, and the material returning mechanism synchronously ascends and descends along with the core mold. And in the material returning working state, the sliding block slides to the upper end of the material returning mechanism, the inserting rod retracts to be only inserted into the positioning groove, the outer ring of the pipe blank is clamped by the material returning mechanism, and the material returning mechanism completes material returning of the pipe blank.

Description

Technical Field

[0001] The present invention relates to the technical field of spinning processing, and in particular to a ball spinning machine. Background Art

[0002] A ball spinning machine is a processing device for metal plastic spinning forming. Its spinning assembly rotates relative to a metal blank, and uses high-precision balls to apply pressure to the material, so that the blank is gradually deformed into the required hollow rotating body part, and is widely used in the fields of aerospace, automobile manufacturing, etc.

[0003] In the related technical solutions, the ball spinning machine includes an upright frame, a mandrel arranged vertically, and a hollow main shaft. The mandrel can be lifted and lowered vertically, and a tube blank to be rolled and thinned is sleeved outside the mandrel. The main shaft includes a die ring, and a plurality of balls are evenly installed in the die ring. The balls protrude from the inner ring of the main shaft, and the balls can gradually rotate and extrude along the circumferential and longitudinal directions of the tube blank during the rotation of the main shaft, so that the tube blank is completed for thinning processing.

[0004] However, in the above technical solutions, in order to prevent the tube blank from rotating itself to avoid the failure of ball spinning and thinning, at least the circumferential limit between the tube blank and the mandrel needs to be realized. In some technical solutions, a locking structure for fixing the upper end of the tube blank is installed at the mandrel. However, the part of the tube blank that is locked and fixed cannot participate in the ball spinning and thinning, and this part needs to be cut off after thinning, which will cause waste of a longer-sized tube blank and cannot be used. Summary of the Invention

[0005] The present invention provides a ball spinning machine, which can solve at least one of the above technical problems.

[0006] To solve the above technical problems, one or more embodiments of the present invention provide a ball spinning machine, including a frame for support, a working space is formed therein, a mandrel capable of lifting and lowering is arranged in the working space, a tube blank can be sleeved outside the mandrel, a rotatable spinning assembly is installed below the mandrel, the spinning assembly has a spinning cavity with an open upper end to accommodate the tube blank, and balls are installed on the inner ring of the spinning cavity. A blank discharging mechanism capable of lifting and lowering is also installed in the working space. The blank discharging mechanism can clamp the outer ring of the tube blank. A slider capable of lifting and positioning is installed on the blank discharging mechanism. A plug rod capable of axially stretching along itself is rotatably installed on the slider. The plug rod can rotate between horizontal and vertical. The upper end of the mandrel has a limiting groove.

[0007] In the spinning working state, the slider slides to the lower end of the blank discharging mechanism, the limiting groove can be aligned with a positioning groove reserved at the upper end of the tube blank, the plug rod extends and extends horizontally, the plug rod is inserted into the positioning groove and the limiting groove at the same time, and the blank discharging mechanism synchronously lifts and lowers with the mandrel. In the blank discharging working state, the slider slides to the upper end of the blank discharging mechanism, the plug rod retracts to only insert into the positioning groove, the blank discharging mechanism clamps the outer ring of the tube blank, the blank discharging mechanism moves down and the mandrel does not move, so as to complete the blank discharging of the tube blank.

[0008] The beneficial effects of the above one or more technical solutions are as follows: In this solution, a discharging mechanism capable of lifting is installed on the frame. The discharging structure can clamp the outer ring of the tube blank, and a slider capable of sliding vertically and positioning is provided on the discharging structure. A plug rod capable of rotating to the horizontal or vertical direction is installed on the slider, and the plug rod is a telescopic structure. Additionally, a limiting groove is provided on the core mold, and a positioning groove is reserved at the upper end of the tube blank. At this time, since the positioning groove is provided at the top of the tube blank, only a small part of the structure at the top of the tube blank cannot be directly used, thereby reducing the wasted length of the tube blank.

[0009] In the spinning working state, the slider and the plug rod move to the lower end of the discharging mechanism, so that the plug rod and the discharging mechanism will not hinder the insertion of the tube blank into the main shaft for spinning and thinning due to position interference. In the discharging working state, the slider and the plug rod move to the upper end of the discharging mechanism. When the plug rod is inserted into the positioning groove, it is convenient to make the discharging mechanism clamp the outer ring of the pipe fitting.

[0010] That is to say, in the discharging working state, at least three-point contact forces of the plug rod and the clamping structures on both sides are formed between the discharging mechanism and the pipe fitting. This makes the thinned pipe fitting evenly stressed and reduces the probability of damage to the pipe fitting due to excessive local stress during discharging. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is an isometric schematic view of the overall structure in Embodiment 1 of the present invention; Figure 2 It is an isometric schematic view of the overall structure in another viewing direction in Embodiment 1 of the present invention; Figure 3 It is a partial structural schematic view of the workbench and the main shaft mechanism in Embodiment 1 of the present invention; Figure 4 It is a three-dimensional schematic view of a part of the structure of the discharging mechanism in Embodiment 1 of the present invention; Figure 5 It is Figure 4 The enlarged schematic view of the structure of part A in Figure 6 It is a schematic view of the plug rod of the discharging mechanism in Embodiment 1 of the present invention being inserted into the limiting groove and the positioning groove at the same time; Figure 7 It is a top view schematic view of the alignment of the limiting groove and the positioning groove in Embodiment 1 of the present invention; Figure 8 It is a schematic view of the clamping plate clamping on the outer circumferential side of the tube blank in Embodiment 1 of the present invention; Figure 9 It is a sectional view of the workbench and the spinning assembly in Embodiment 2 of the present invention; Figure 10 It is Figure 9Schematic enlarged view of the structure of part B Figure 11 It is a cross-sectional view of the inner sleeve in Embodiment 2 of the present invention Figure 12 It is a schematic structural view of the tapered sleeve in Embodiment 2 of the present invention Figure 13 It is a cross-sectional view of the top sleeve in Embodiment 2 of the present invention

[0012] In the figure, 1, workbench; 2, left upright column; 3, sliding table; 4, servo motor; 5, speed reducer; 6, synchronous belt pulley; 7, synchronous belt; 8, lead screw; 9, cross beam; 10, right upright column; 11, blanking mechanism; 12, core mold; 1201, limiting groove; 13, spinning assembly; 131, spinning cavity; 132, outer sleeve; 133, drive shaft sleeve; 134, lower bearing; 136, upper bearing; 137, top sleeve; 1371, flange; 1372, end plate; 138, tapered sleeve; 1381, inner tapered surface; 139, inner sleeve; 1391, lower sleeve; 1392, notch; 1393, upper sleeve; 1394, abutting end face; 1310, plugging block; 1311, ball 14, main shaft motor; 15, main shaft speed reducer; 16, hydraulic cylinder; 17, guide rod; 18, main shaft synchronous belt; 19, main shaft synchronous belt pulley; 20, tube blank; 2001, positioning groove; 21, inserting rod; 211, rod sleeve; 212, inner rod; 22, clamping plate; 23, air cylinder; 25, clamping air cylinder; 26, base; 27, slider; 28, bracket; 281, limiting plate; 29, receiving groove; 30, sliding groove Detailed implementation manners

[0013] To clearly illustrate the technical features of this solution, the present invention will be elaborated in detail below through specific implementation manners and in conjunction with its accompanying drawings

[0014] Refer to Figures 1-8 , one or more embodiments of the present invention provide a ball spinning machine, including a frame for support, within which a working space is formed. Inside the working space, there is a vertically movable core mold 12. A tube blank 20 can be sleeved outside the core mold 12. Below the core mold 12, a rotatable spinning assembly 13 is installed. The spinning assembly 13 has a spinning cavity 131 with an open upper end to accommodate the tube blank 20, and a ball 1311 is installed on the inner ring of the spinning cavity 131. A vertically movable blanking mechanism 11 is also installed inside the working space. The blanking mechanism 11 can clamp the outer ring of the tube blank 20. A vertically movable and positionable slider 27 is installed on the blanking mechanism 11. An inserting rod 21 that can rotate along its own axial direction and can expand and contract is rotatably installed on the slider 27. The inserting rod 21 can rotate between horizontal and vertical directions. The upper end of the core mold 12 has a limiting groove 1201

[0015] In order to achieve the circumferential and radial positioning of the tube blank 20 during the spinning process, a positioning groove 2001 is provided on the upper end surface of the tube blank 20. The positioning groove 2001 here is arranged along the radial direction of the tube blank 20 and penetrates its side wall.

[0016] In the spinning working state, the slider 27 slides to the lower end of the unloading mechanism 11, and the limiting groove 1201 can be aligned with the positioning groove 2001 reserved at the upper end of the tube blank 20. The insertion rod 21 extends and extends horizontally, and the insertion rod 21 is inserted into both the positioning groove 2001 and the limiting groove 1201 at the same time. The unloading mechanism 11 rises and falls synchronously with the core mold 12. In the unloading working state, the slider 27 slides to the upper end of the unloading mechanism 11, and the insertion rod 21 retracts to only insert into the positioning groove 2001. The unloading mechanism 11 clamps the outer ring of the tube blank 20, and the unloading mechanism 11 moves downward while the core mold 12 remains stationary to complete the unloading of the tube blank 20.

[0017] Specifically, the size of the core mold 12 is set to have a clearance fit with the tube blank 20 to be sleeved, thereby preventing the tube blank 20 from falling vertically from the core mold 12 before contacting the spinning assembly.

[0018] Specifically, the unloading mechanism 11 includes a base 26. The base 26 is connected to the cross beam 9 through a hydraulic cylinder 16 to drive the base 26 to rise and fall. Two vertical guide rods 17 are also installed between the base 26 and the cross beam 9. The above-mentioned slider 27 and insertion rod 21 are installed on the base 26.

[0019] Specifically, a vertical chute 30 is provided on the side of the base 26 close to the core mold. A slider 27 that can slide vertically is installed in the chute 30. Brackets 28 are respectively installed on the left and right sides of the slider 27. The above-mentioned insertion rod 21 is rotatably installed between the two brackets 28. The insertion rod 21 is fixed to a horizontal rotating shaft, and the rotating shaft is rotatably connected to the bracket 28.

[0020] As one of the structural forms, the rotation of the insertion rod 21 relative to the slider 27 can be manually driven by the staff. In some other structural forms, one end of the rotating shaft passes through the bracket 28 and is coaxially fixed to the output shaft of a micro motor (not shown in the figure). During the rotation of the micro motor, the rotating shaft will drive the entire insertion rod 21 to switch between the horizontal and vertical states.

[0021] Specifically, the end of the rod sleeve 211 of the following insertion rod 21 is fixed with the above-mentioned horizontal rotating shaft, so that the rod sleeve 211 drives the entire insertion rod 21 to rotate between the vertical and horizontal.

[0022] More specifically, a receiving groove 29 is also provided on the side of the slider 27 facing the core mold. The receiving groove 29 can accommodate a part of the structure of the insertion rod 21 in the vertical or horizontal state, thereby enabling the insertion rod 21 to be partially received in the slider 27 and reducing the probability of the insertion rod 21 interfering with the core mold 12 and the slider during the rotation process.

[0023] More specifically, in order to limit the position of the inserting rod 21 after it rotates to the horizontal position, so that the inserting rod 21 can apply pressure to the tube blank 20 and / or the core mold 12 in the horizontal state: a limiting plate 281 is fixed at the upper end of the bracket 28, and the limiting plate 281 is arranged across the two brackets 28. After the inserting rod 21 rotates to the horizontal state, the inserting rod 21 abuts against the limiting plate 281, and the limiting plate 281 prevents the inserting rod 21 from continuing to rotate upward.

[0024] Specifically, in order to drive the slider 27 to slide vertically relative to the base 26, a linear driving member is provided on the base 26. Taking Figure 6 as an example, the linear driving member adopts a cylinder 23. The cylinder block of the cylinder 23 is fixed to the base 26, the piston rod of the cylinder 23 extends vertically downward, and the end of the piston rod is fixed to the upper end of the slider 27. The telescopic movement of the cylinder 23 can drive the entire slider 27 and the inserting rod 21 to lift vertically.

[0025] In some other embodiments, the above-mentioned cylinder can be replaced with other structures such as an electric push rod or a hydraulic cylinder, and the specific connection method can be set by those skilled in the art, and will not be elaborated here.

[0026] In order to realize the clamping of the tube blank 20 by the unloading mechanism 11, as a specific structural form, refer to Figure 1 、 Figure 5 and Figure 6 : Two clamping cylinders 25 are respectively arranged on both sides of the base 26. The two clamping cylinders 25 both extend horizontally, and the piston rods of the clamping cylinders 25 extend toward the core mold 12. And the end of the piston rod is fixed to the clamping plate 22. When the piston rod extends, the two clamping plates 22 can abut against and clamp both sides of the tube blank 20, so as to apply a downward frictional force to the tube blank 20 when the base 26 descends.

[0027] In some other embodiments, the clamping plate 22 and the clamping cylinder 25 can be replaced with two clamping claws, and the specific structure of the clamping claws can refer to the prior art, and will not be elaborated here.

[0028] In this embodiment, the frame includes a workbench 1. Two columns are installed on the workbench 1. The upper ends of the two columns are connected by a cross beam 9. A lifting driving member is installed at the lower part of the cross beam 9. A sliding table 3 is installed at the lower end of the lifting driving member. A core mold 12 is installed at the lower end of the sliding table 3. The sliding table 3 is slidably connected to the column.

[0029] Specifically, the two columns here are the left column 2 and the right column 10 shown in the figure. The left column 2 and the right column 10 have the same structural form, and the two are arranged vertically and side by side. The left column 2 and the right column 10 here are both square columns. In some other embodiments, the square columns can also be replaced with circular columns.

[0030] Specifically, the left upright column 2 and the right upright column 10 are symmetrically installed on the left and right sides of the entire frame in the width direction.

[0031] In some embodiments, there are two unloading mechanisms 11, and the two unloading mechanisms 11 are symmetrically installed on both sides of the frame in the front-rear direction. In some other embodiments, the number of the unloading mechanisms 11 is one, and it is only arranged on one side of the frame in the front-rear direction.

[0032] See Figure 7 , one end of the above-mentioned limiting groove 1201 in its own extending direction penetrates through the outer circular side surface of the core mold 12, and one end of the positioning groove 2001 in its own extending direction penetrates through the outer circular side surface of the tube blank 20. Here, the cross-sections of the limiting groove 1201 and the positioning groove 2001 are both square.

[0033] In this embodiment, the lifting driving member includes a lead screw 8 and a nut (not shown in the figure). The nut is rotatably connected to the cross beam 9. The lead screw 8 is vertically arranged, and the lower end of the lead screw 8 is rotatably installed on the sliding table 3. The outer ring of the nut is driven by a power assembly to realize rotation.

[0034] Specifically, the power assembly includes a servo motor 4 and a speed reducer 5 supported by the cross beam 9. The speed reducer 5 is coaxially connected to one of the synchronous belt pulleys 6, and the other synchronous belt pulley is coaxially fixed to the screw sleeve. The two synchronous belt pulleys 6 are connected by a synchronous belt 7.

[0035] In this embodiment, the spinning assembly 13 includes a hollow main shaft. The lower end of the main shaft passes through the workbench 1, and the lower end of the main shaft is driven by a power source to rotate self.

[0036] Specifically, the power source here includes a main shaft speed reducer 15 and a main shaft motor 14 which are connected. The main shaft speed reducer 15 is connected to the main shaft through a synchronous belt pulley assembly. Specifically, a main shaft synchronous belt pulley 19 is respectively fixedly connected to the main shaft speed reducer 15 and the main shaft, and the two main shaft synchronous belt pulleys 19 are connected by a main shaft synchronous belt 18.

[0037] In this embodiment, the plug rod 21 includes a rod sleeve 211 and an inner rod 212. In some embodiments, the telescoping between the inner rod 212 and the rod sleeve 211 can be manually pulled by the staff.

[0038] In some other embodiments, a spring and an electromagnet assembly (not shown in the figure) are installed between one end of the inner rod 212 embedded in the rod sleeve 211 and the rod sleeve 211. One of the electromagnet assembly and the spring provides the power for the inner rod 212 to extend out of the rod sleeve 211, and the other provides the power for the inner rod 212 to retract into the rod sleeve 211.

[0039] More specifically, one end of the spring is fixed to one end of the inner rod 212 close to the rod sleeve 211, and the other end is fixed to the end of the inner cavity of the rod sleeve 211. The spring is used to provide the power for the inner rod 212 to extend out of the rod sleeve 211. The electromagnet assembly includes a first electromagnet fixed to one end of the inner tube close to the rod sleeve 211, and also includes a second electromagnet at the end of the rod sleeve 211 away from the inner rod 212. After the electromagnet assembly is energized, the first electromagnet and the second electromagnet attract each other to drive the inner rod 212 to retract into the rod sleeve 211.

[0040] In the embodiment of using the rotary drive assembly to drive the plug rod 21 to rotate, the above-mentioned rotating shaft is fixed to the end of the rod sleeve 211. The rotating shaft is horizontal and is rotatably connected to the bracket 28 on the blanking mechanism 11. At least one end of the rotating shaft is connected to the rotary drive assembly (which can be a pneumatic motor or the above-mentioned micro motor) to drive the rotating shaft and the plug rod to rotate between the vertical and the horizontal.

[0041] Embodiment 2 See Figures 9-13 , the structural settings of this embodiment are basically the same as those of Embodiment 1. The difference is that a specific structural form of the spinning assembly is provided to facilitate the rapid unloading of the balls 1311 when the tube blank 20 needs to be withdrawn from the spinning cavity, and to prevent the balls 1311 from scratching the outer circumferential side of the tube blank 20 during the unloading process.

[0042] In this embodiment, the main shaft includes an inner sleeve 139. A top sleeve 137 is fixedly installed at the upper end of the inner sleeve 139. The top sleeve 137 includes an end plate 1372. The end plate 1372 has a through hole for forming the spinning cavity 131. The end plate 1372 has a flange 1371 extending into the spinning cavity 131 at the through hole. A tapered sleeve 138 is embedded in the inner sleeve 139. The tapered sleeve 138 has an inner tapered surface 1381, and balls 1311 are provided between the inner tapered surface 1381 and the flange 1371.

[0043] In this embodiment, a notch 1392 is provided on the side wall of the inner sleeve 139. A detachable plug block 1310 is installed at the notch 1392. The head end of the plug block 1310 is inserted from the notch 1392 to the side of the tapered sleeve 138 away from the balls 1311. The head end of the plug block 1310 is a wedge-shaped structure. The inner ring of the inner sleeve 139 has a stop end surface 1394. The head end of the plug block 1310 is inserted between the stop end surface 1394 and the tapered sleeve 138.

[0044] Specifically, a manual pull rod (not shown in the figure) can be provided at the notch 1392. The pull rod is fixed to the end of the plug block 1310 away from the inner sleeve 139. By means of the pull rod, it is convenient for the user to apply an external force to the plug block 1310, so that the plug block 1310 can enter between the stop end surface 1394 and the tapered sleeve 138 by extrusion, or the plug block 1310 can be moved out from between the stop end surface 1394 and the tapered sleeve 138.

[0045] It can be known that when the plugging block 1310 is completely squeezed into the space between the abutting end face 1394 and the tapered sleeve 138, the distance between the inner tapered surface 1381 of the tapered sleeve 138 and the flange 1371 decreases. As a result, the ball 1311 moves towards the axis direction of the tapered sleeve 138, and the distance between the ball 1311 and the axis of the spinning cavity decreases, facilitating the spinning and thinning process of the tube blank 20 using the ball 1311.

[0046] After the entire tube blank 20 is spun and thinned, the plugging block 1310 can be moved outwards from the notch 1392 under the drive of the pull rod, that is, the plugging block 1310 is no longer completely squeezed between the abutting end face 1394 and the tapered sleeve 138. At this time, the tapered sleeve 138 moves downwards, and the ball 1311 is no longer squeezed by the tapered sleeve 138. As a result, the ball 1311 is unloaded relative to the tube blank 20, and they are relatively movably arranged. When the core mold and the tube blank 20 are lifted at this time, the ball 1311 no longer obstructs the tube blank 20, thus avoiding scratching the outer side of the tube blank 20 by the ball 1311.

[0047] To install the spinning assembly, an outer sleeve 132 is fixedly penetrated through the center of the workbench 1. The outer sleeve 132 is rotatably connected to the inner sleeve 139 through an upper bearing 136 and a lower bearing 134. A drive shaft sleeve 133 is coaxially fixed at the lowermost end of the inner sleeve 139, and the outer part of the drive shaft sleeve 133 is used for installing the main shaft synchronous pulley.

[0048] Specifically, in this embodiment, the top sleeve 137 and the inner sleeve 139 are fixed by welding or bolt connection. Taking bolt connection as an example, screw holes perpendicular to their own central axes are respectively provided on the side walls of the top sleeve 137 and the inner sleeve 139. When the two screw holes are aligned, the corresponding bolts can be inserted.

[0049] More specifically, the inner sleeve 139 is a stepped shaft sleeve structure. The inner sleeve 139 includes a lower sleeve 1391 and an upper sleeve 1393. The inner diameter of the lower sleeve 1391 is equal to the inner diameter of the top sleeve 137, and the inner diameter of the upper sleeve 1393 is equal to the outer diameter of the flange on the top sleeve 137.

[0050] In some other embodiments, the pull rod can be replaced with a self-powered electric push rod or a cylinder and other structures to replace the manual operation of the worker to disassemble and assemble the plugging block 1310 relative to the tapered sleeve 138 and the abutting end face 1394.

[0051] In this embodiment, the tapered sleeve 138 is formed by splicing a plurality of segments (not shown in the figure) along its circumferential direction. Baffles are respectively provided at both ends of each segment along its circumferential direction to enclose a notch for installing the ball 1311. As a specific structural form, the number of segments is equal to the number of balls 1311.

[0052] The above specific embodiments shall not be construed as limiting the scope of protection of the present invention. For those skilled in the art of this technology, any alternative improvement or transformation made to the embodiments of the present invention shall fall within the scope of protection of the present invention.

[0053] Those parts not detailed in the present invention are all well-known technologies to those skilled in the art of this technology.

Claims

1. A ball spinning press, characterized in that, It comprises a frame for supporting, in which a working space is formed, in which a mandrel capable of being raised and lowered is arranged, a tube blank can be sleeved on the outside of the mandrel, a spinning assembly capable of being rotated is installed below the mandrel, the spinning assembly has a spinning cavity with an upper end open to accommodate the tube blank, and a ball is installed on the inner ring of the spinning cavity; A material-removing mechanism capable of lifting and lowering is also installed in the working space, the material-removing mechanism can clamp the outer ring of the tube blank, a slider capable of lifting and lowering and positioning is installed on the material-removing mechanism, a plug rod capable of extending and retracting along its own axial direction is rotatably installed on the slider, the plug rod can rotate between horizontal and vertical, and a limiting groove is provided at the upper end of the core mold; In the spinning working state, the slider slides to the lower end of the material withdrawal mechanism, the limit groove can be aligned with the positioning groove reserved at the upper end of the tube blank, the insertion rod is extended and horizontally, the insertion rod is inserted into the positioning groove and the limit groove at the same time, and the material withdrawal mechanism rises and falls synchronously with the core mold; In the material withdrawal working state, the slider slides to the upper end of the material withdrawal mechanism, the insertion rod retracts to only insert into the positioning groove, the material withdrawal mechanism clamps the outer ring of the tube blank, the material withdrawal mechanism moves down and the core mold does not move to complete the tube blank withdrawal.

2. The ball spinning press according to claim 1, characterized in that, The frame includes a workbench on which two columns are installed. The upper ends of the two columns are connected by a crossbeam, a lifting drive component is installed at the lower end of the crossbeam, a slide is installed at the lower end of the lifting drive component, a core mold is installed at the lower end of the slide, and the slide is slidably connected to the columns.

3. The ball spinning machine according to claim 2, characterized in that, The lifting drive member includes a lead screw and a nut, the nut is rotatably connected to the crossbeam, the lead screw is vertically arranged, the lower end of the lead screw is rotatably mounted on the slide, and the outer ring of the nut is driven by a power component to rotate.

4. The ball spinning press according to claim 2, wherein, The spinning assembly comprises a hollow main shaft, the lower end of which passes through the workbench, and the lower end of which is driven by a power source to realize self-rotation.

5. The ball spinning press according to claim 4, wherein The main shaft includes an inner sleeve, a top sleeve is fixedly installed on the upper end of the inner sleeve, the top sleeve includes an end plate, the end plate has a through hole for forming a spinning cavity, the end plate has a flange extending toward the spinning cavity at the through hole, a tapered sleeve is embedded in the inner sleeve, the tapered sleeve has an inner conical surface, and the ball is arranged between the inner conical surface and the flange.

6. The ball spinning press according to claim 5, wherein, A notch is provided on the side wall of the inner sleeve, and a detachable blocking block is installed at the notch. The head end of the blocking block is inserted from the notch to a side of the cone sleeve away from the ball.

7. The ball spinning press according to claim 6, characterized in that, The head end of the blocking block is a wedge-shaped structure, the inner ring of the inner sleeve has a stop end face, and the head end of the blocking block is inserted between the stop end face and the cone sleeve.

8. The ball spinning press according to claim 6, characterized in that, The cone sleeve is formed by splicing a plurality of blocks along its circumference, and baffles are respectively arranged at both ends of each block along its circumference to enclose a groove for installing the ball.

9. The ball spinning machine according to claim 1, characterized in that, The inserting rod comprises a rod sleeve and an inner rod, and a spring and an electromagnet assembly are installed between one end of the inner rod in the rod sleeve and the rod sleeve.

10. The ball spinning press according to claim 9, wherein, A horizontal rotating shaft is fixed to the end of the rod sleeve, the rotating shaft is rotatably connected to the material unloading mechanism, and at least one end of the rotating shaft is connected to a rotary drive assembly to drive the rotating shaft and the insertion rod to rotate between vertical and horizontal directions.

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