A ball spinning machine

Abstract

The present invention relates to the field of spinning processing technology, and specifically to a ball spinning machine, comprising a frame for support, a core mold that can be raised and lowered is provided therein, a tube blank can be sleeved on the outside of the core mold, a spinning assembly that can rotate is installed below the core mold, and a material return mechanism that can be raised and lowered, the material return mechanism can clamp the outer ring of the tube blank, a slider that can be raised and lowered is installed on the material return mechanism, a plug rod that can be extended and retracted along its own axis is rotatably installed on the slider, the plug rod can rotate between horizontal and vertical, and the upper end of the core mold has a limit groove. In the spinning working state, the slider slides to the lower end of the material return mechanism, the plug rod is extended and horizontally extended, the plug rod is inserted into the positioning groove and the limit groove at the same time, and the material return mechanism rises and falls synchronously with the core mold. In the material return working state, the slider slides to the upper end of the material return mechanism, the plug rod retracts to only insert into the positioning groove, the material return mechanism clamps the outer ring of the tube blank, and the material return mechanism completes the material return of the tube blank.

Description

Technical Field

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

[0002] Ball spinning machine is a processing equipment used for metal plastic spinning. Its spinning component rotates relative to the metal blank and uses high-precision balls to apply pressure to the material, causing the blank to gradually deform into the required hollow rotating parts. It is widely used in aerospace, automobile manufacturing and other fields.

[0003] In the related technical solution, a ball spinning machine comprises a stand, a vertically arranged core die, and a hollow main shaft. The core die can be raised and lowered vertically, and the outer portion of the core die is covered with the tube to be rolled and thinned. The main shaft includes a die ring with multiple balls evenly distributed within it. The balls protrude from the inner ring of the main shaft. As the main shaft rotates, the balls gradually rotate and squeeze the tube along its circumference and length, completing the thinning process.

[0004] However, in the aforementioned technical solutions, to prevent the tube from rotating and thus prevent ball spinning failure, at least circumferential positioning between the tube and the mandrel is required. In some technical solutions, a locking structure is installed on the mandrel to secure the upper end of the tube. However, this locked portion of the tube cannot participate in ball spinning and must be removed after thinning, resulting in wasted and unusable tubes. 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 address the aforementioned technical issues, one or more embodiments of the present invention provide a ball spinning machine, comprising a support frame with a workspace formed therein. A mandrel mold capable of being raised and lowered is disposed within the workspace, and a tube blank can be sleeved onto the exterior of the mandrel mold. A rotatable spinning assembly is mounted below the mandrel mold, the spinning assembly having a spinning cavity with an open top to accommodate the tube blank, and a ball bearing is mounted within the inner ring of the spinning cavity. A material return mechanism capable of being raised and lowered is also mounted within the workspace, capable of clamping the outer ring of the tube blank. A slider capable of being raised and lowered and positioned is mounted on the slider, and a rod capable of being rotatably mounted on the slider, capable of extending and retracting along its own axis, capable of rotating between horizontal and vertical directions, is mounted on the upper end of the mandrel mold. A retaining groove is provided at the upper end of the mandrel mold.

[0007] In the spinning state, the slider slides to the lower end of the material removal mechanism, the limit groove can be aligned with the positioning groove reserved at the upper end of the tube blank, the insertion rod extends horizontally, and the insertion rod is inserted into the positioning groove and the limit groove at the same time, and the material removal mechanism rises and falls synchronously with the core mold. In the material removal state, the slider slides to the upper end of the material removal mechanism, the insertion rod retracts to insert only into the positioning groove, the material removal mechanism clamps the outer ring of the tube blank, and the material removal mechanism moves downward while the core mold remains stationary to complete the tube removal.

[0008] The beneficial effects of one or more of the above technical solutions are:

[0009] In this solution, a lifting and lowering mechanism is mounted on the frame. This mechanism can hold the outer ring of the tube blank and is equipped with a slider that can slide vertically and position itself. Mounted on the slider is a retractable plunger that can be rotated horizontally or vertically. Furthermore, the core mold is provided with a retaining groove, and a positioning groove is reserved at the top of the tube blank. Because the positioning groove is located at the top of the tube blank, only a small portion of the top structure is unusable, thus reducing the wasted length of the tube blank.

[0010] In the spinning state, the slider and the plunger move to the lower end of the material stripping mechanism, so that the plunger and the material stripping mechanism do not interfere with each other and hinder the insertion of the tube blank into the spindle for spinning and thinning. In the material stripping state, the slider and the plunger move to the upper end of the material stripping mechanism. When the plunger is inserted into the positioning groove, the material stripping mechanism is conveniently clamped on the outer ring of the tube.

[0011] That is, during the material removal operation, the material removal mechanism forms at least three points of contact between the pipe and the insert rod and the clamping structures on both sides. This ensures that the thinned pipe is evenly stressed, reducing the probability of damage to the pipe due to excessive local stress during material removal. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is an axial schematic diagram of the overall structure in Example 1 of the present invention;

[0013] Figure 2 This is an axial schematic diagram of the overall structure in another viewing direction in Example 1 of the present invention;

[0014] Figure 3 Schematic diagram of the partial structure of the workbench and spindle mechanism in Example 1 of the present invention;

[0015] Figure 4 It is a schematic three-dimensional diagram of a portion of the structure of the material return mechanism in Example 1 of the present invention;

[0016] Figure 5 yes Figure 4 A schematic diagram of the structure of part A;

[0017] Figure 6 This is a schematic diagram of the insertion rod of the material return mechanism in Example 1 of the present invention being inserted into the limiting groove and the positioning groove at the same time;

[0018] Figure 7 is a top view schematically showing the alignment of the limiting groove and the positioning groove in Example 1 of the present invention;

[0019] Figure 8Schematic diagram of the clamping plate clamped on the outer circular side of the tube blank in Example 1 of the present invention;

[0020] Figure 9 is a cross-sectional view of the workbench and the spinning assembly in Example 2 of the present invention;

[0021] Figure 10 yes Figure 9 A schematic diagram of the structure of part B in the middle;

[0022] Figure 11 is a cross-sectional view of the inner sleeve in Example 2 of the present invention;

[0023] Figure 12 Schematic diagram of the structure of the cone sleeve in Example 2 of the present invention;

[0024] Figure 13 It is a cross-sectional view of the top sleeve in Example 2 of the present invention.

[0025] In the figure, 1, workbench; 2, left column; 3, slide; 4, servo motor; 5, reducer; 6, synchronous pulley; 7, synchronous belt; 8, lead screw; 9, crossbeam; 10, right column; 11, material return mechanism; 12, core mold; 1201, limit 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 cone; 139, inner sleeve; 1391, lower sleeve; 1392, notch; 1393, upper sleeve; 1394, stop end face; 1310, blocking block; 1311, ball bearing;

[0026] 14. Spindle motor; 15. Spindle reducer; 16. Hydraulic cylinder; 17. Guide rod; 18. Spindle timing belt; 19. Spindle timing pulley; 20. Tube; 2001. Positioning groove; 21. Insert rod; 211. Rod sleeve; 212. Inner rod; 22. Clamping plate; 23. Cylinder; 25. Clamping cylinder; 26. Base; 27. Slider; 28. Bracket; 281. Limiting plate; 29. Receiving groove; 30. Slide groove. DETAILED DESCRIPTION

[0027] In order to clearly illustrate the technical features of this solution, the present invention is described in detail below through specific implementation methods and in conjunction with the accompanying drawings.

[0028] See also Figures 1-8One or more embodiments of the present invention provide a ball spinning machine, comprising a support frame, within which a workspace is formed. A mandrel 12 capable of being raised and lowered is provided within the workspace. A tube blank 20 can be sleeved on the exterior of the mandrel 12. A rotatable spinning assembly 13 is mounted below the mandrel 12. The spinning assembly 13 has a spinning cavity 131 with an open top for accommodating the tube blank 20. A ball 1311 is mounted on the inner ring of the spinning cavity 131. A material return mechanism 11 capable of being raised and lowered is also mounted within the workspace. The material return mechanism 11 can clamp the outer ring of the tube blank 20. A slider 27 capable of being raised and lowered and positioned is mounted on the material return mechanism 11. An insert rod 21 capable of extending and retracting along its own axial direction is rotatably mounted on the slider 27. The insert rod 21 can rotate between horizontal and vertical directions. A limiting groove 1201 is provided at the upper end of the mandrel 12.

[0029] In order to achieve 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 is provided along the radial direction of the tube blank 20 and penetrates its side wall.

[0030] In the spinning state, the slider 27 slides to the lower end of the material stripping mechanism 11, and the limiting groove 1201 is aligned with the positioning groove 2001 reserved at the upper end of the tube blank 20. The insertion rod 21 extends horizontally and is inserted into the positioning groove 2001 and the limiting groove 1201 at the same time. The material stripping mechanism 11 rises and falls synchronously with the core mold 12. In the material stripping state, the slider 27 slides to the upper end of the material stripping mechanism 11, and the insertion rod 21 retracts to only be inserted into the positioning groove 2001. The material stripping mechanism 11 clamps the outer ring of the tube blank 20, and the material stripping mechanism 11 moves downward while the core mold 12 remains stationary, completing the stripping of the tube blank 20.

[0031] Specifically, the size of the core mold 12 is set to be loosely matched 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.

[0032] Specifically, the material return mechanism 11 includes a base 26, which is connected to the crossbeam 9 by 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 crossbeam 9. The above-mentioned slider 27 and insertion rod 21 are installed on the base 26.

[0033] Specifically, the base 26 is provided with a vertical slot 30 on the side near the core mold. A vertically sliding slider 27 is mounted within the slot 30. Brackets 28 are mounted on the left and right sides of the slider 27. The insertion rod 21 is rotatably mounted between the two brackets 28. The insertion rod 21 is fixed to a horizontal rotation axis, which is rotatably connected to the bracket 28.

[0034] In one configuration, the rotation of the rod 21 relative to the slider 27 can be manually driven by a worker. In other configurations, one end of the rotating shaft passes through a bracket 28 and is coaxially fixed to the output shaft of a micromotor (not shown). As the micromotor rotates, the rotating shaft drives the entire rod 21 to switch between horizontal and vertical positions.

[0035] Specifically, the horizontal rotation axis is fixed to the end of the rod sleeve 211 of the insertion rod 21 described below, so that the rod sleeve 211 drives the entire insertion rod 21 to rotate between vertical and horizontal directions.

[0036] More specifically, a receiving groove 29 is provided on the side of the slider 27 facing the core mold. The receiving groove 29 can accommodate part of the structure of the insertion rod 21 in a vertical state or a horizontal state, so that the insertion rod 21 is partially received in the slider 27, reducing the probability of the insertion rod 21 interfering with the core mold 12 and the slider during rotation.

[0037] More specifically, to limit the insertion rod 21 after it rotates to the horizontal position, thereby allowing the insertion rod 21 to apply pressure to the tube 20 and / or the core mold 12 in the horizontal state, a limit plate 281 is fixed to the upper end of the bracket 28. The limit plate 281 is arranged across the two brackets 28. When the insertion rod 21 rotates to the horizontal position, the insertion rod 21 abuts against the limit plate 281, preventing the insertion rod 21 from further rotating upward.

[0038] Specifically, in order to drive the slider 27 to slide vertically relative to the base 26, a linear drive member is provided on the base 26. Figure 6 For example, the linear drive member adopts a cylinder 23, the cylinder seat 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 extension and contraction of the cylinder 23 can drive the entire slider 27 and the insertion rod 21 to rise and fall vertically.

[0039] In some other embodiments, the above-mentioned cylinder can be replaced by other structures such as an electric push rod or a hydraulic cylinder. The specific connection method can be set by those skilled in the art and will not be described here.

[0040] In order to realize the clamping of the tube blank 20 by the material removal mechanism 11, as a specific structural form, see Figure 1 、 Figure 5 and Figure 6 Two clamping cylinders 25 are mounted on either side of the base 26. Both clamping cylinders 25 extend horizontally, with their piston rods extending toward the core mold 12. The ends of the piston rods are secured to clamping plates 22. When the piston rods are extended, the two clamping plates 22 abut and clamp against the sides of the tube 20, exerting a downward friction force on the tube 20 when the base 26 descends.

[0041] In some other embodiments, the clamping plate 22 and the clamping cylinder 25 may be replaced by two clamping claws. The specific structure of the clamping claws can refer to the existing technology and will not be described here in detail.

[0042] In this embodiment, the frame includes a workbench 1, on which two columns are installed. The upper ends of the two columns are connected by a crossbeam 9. A lifting drive component is installed at the lower end of the crossbeam 9. A slide 3 is installed at the lower end of the lifting drive component. A core mold 12 is installed at the lower end of the slide 3. The slide 3 is slidably connected to the columns.

[0043] Specifically, the two pillars are shown as a left pillar 2 and a right pillar 10. The left pillar 2 and the right pillar 10 have the same structure and are arranged vertically and side by side. Both the left pillar 2 and the right pillar 10 are square pillars. In some other embodiments, the square pillars can also be replaced with round pillars.

[0044] Specifically, the left column 2 and the right column 10 are symmetrically installed on the left and right sides of the entire frame along the width direction.

[0045] In some embodiments, there are two material return mechanisms 11, which are symmetrically installed on both sides of the frame along the front-to-back direction. In other embodiments, there is only one material return mechanism 11, which is only installed on one side of the frame along the front-to-back direction.

[0046] See also Figure 7 The above-mentioned limiting groove 1201 has one end along its own extension direction passing through the outer circumferential side surface of the core mold 12, and the positioning groove 2001 has one end along its own extension direction passing through the outer circumferential side surface of the tube blank 20. Here, the cross sections of the limiting groove 1201 and the positioning groove 2001 are both square.

[0047] In this embodiment, the lifting drive component includes a screw 8 and a nut (not shown in the figure). The nut is rotatably connected to the crossbeam 9. The screw 8 is arranged vertically. The lower end of the screw 8 is rotatably installed on the slide 3. The outer ring of the nut is driven by a power component to achieve rotation.

[0048] Specifically, the power assembly includes a servo motor 4 and a reducer 5 supported by a crossbeam 9. The reducer 5 is coaxially connected to one of the synchronous pulleys 6, and the other synchronous pulley is coaxially fixed to the nut. The two synchronous pulleys 6 are connected by a synchronous belt 7.

[0049] In this embodiment, the spinning assembly 13 includes a hollow main shaft, the lower end of which passes through the workbench 1, and the lower end of the main shaft is driven by a power source to rotate.

[0050] Specifically, the power source here includes a connected spindle reducer 15 and a spindle motor 14. The spindle reducer 15 is connected to the spindle via a synchronous pulley assembly. Specifically, a spindle synchronous pulley 19 is fixedly connected to the spindle reducer 15 and the spindle, and the two spindle synchronous pulleys 19 are connected by a spindle synchronous belt 18.

[0051] In this embodiment, the insertion rod 21 includes a rod sleeve 211 and an inner rod 212. In some embodiments, the extension and retraction between the inner rod 212 and the rod sleeve 211 can be manually pulled by a staff member.

[0052] In some other embodiments, a spring and an electromagnet assembly (not shown) 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 to extend the inner rod 212 out of the rod sleeve 211, while the other provides the power to retract the inner rod 212 into the rod sleeve 211.

[0053] More specifically, one end of the spring is fixed to the end of the inner rod 212 near 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 force for the inner rod 212 to extend out of the rod sleeve 211. The electromagnet assembly includes a first electromagnet fixed to the end of the inner tube near the rod sleeve 211 and a second electromagnet at the end of the rod sleeve 211 away from the inner rod 212. When the electromagnet assembly is energized, the first and second electromagnets engage, driving the inner rod 212 to retract into the rod sleeve 211.

[0054] In the embodiment in which the insertion rod 21 is driven to rotate by a rotary drive assembly, the above-mentioned rotating shaft is fixed to the end of the rod sleeve 211, the rotating shaft is horizontal, the rotating shaft is rotatably connected to the bracket 28 on the material return mechanism 11, and 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 insertion rod to rotate between vertical and horizontal.

[0055] Example 2

[0056] See also Figures 9-13 The structural setting of this embodiment is basically the same as that of embodiment 1, except that a specific structural form of a spinning assembly is provided to facilitate the rapid unloading of the ball 1311 when the tube blank 20 needs to exit the spinning cavity, thereby preventing the ball 1311 from scratching the outer circular side surface of the tube blank 20 during the unloading process.

[0057] In this embodiment, the main shaft includes an inner sleeve 139, and a top sleeve 137 is fixedly installed on 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 a spinning cavity 131. The end plate 1372 has a flange 1371 extending toward 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 conical surface 1381 and a ball 1311 is provided between the inner conical surface 1381 and the flange 1371.

[0058] In this embodiment, the sidewall of the inner sleeve 139 is provided with a notch 1392, into which a removable blocking block 1310 is mounted. The head of blocking block 1310 is inserted through notch 1392 into the side of the tapered sleeve 138 facing away from the ball bearings 1311. The head of blocking block 1310 is wedge-shaped. The inner ring of the inner sleeve 139 has an abutment end surface 1394, and the head of blocking block 1310 is inserted between the abutment end surface 1394 and the tapered sleeve 138.

[0059] Specifically, a manual pull rod (not shown in the figure) can be provided at the above-mentioned notch 1392, and the pull rod is fixed to the end of the blocking block 1310 away from the inner sleeve 139. The pull rod can facilitate the user to apply external force to the blocking block 1310, thereby allowing the blocking block 1310 to enter between the stop end face 1394 and the cone sleeve 138 by squeezing, or allowing the blocking block 1310 to move outward from between the stop end face 1394 and the cone sleeve 138.

[0060] It can be seen that when the sealing block 1310 is completely squeezed into the space between the stop end face 1394 and the tapered sleeve 138, the distance between the inner conical surface 1381 of the tapered sleeve 138 and the flange 1371 is reduced, thereby causing the ball 1311 to move toward the center axis of the tapered sleeve 138, and the distance between the ball 1311 and the center axis of the spinning cavity is reduced, so that the ball 1311 can be used to perform spinning and thinning processing on the tube blank 20.

[0061] After the entire tube 20 is completely thinned by spinning, the blocking block 1310 can be driven outward from the notch 1392 by the pull rod. In other words, the blocking block 1310 is no longer completely squeezed between the stop end surface 1394 and the tapered sleeve 138. At this point, the tapered sleeve 138 moves downward, and the balls 1311 are no longer squeezed by the tapered sleeve 138. Consequently, the balls 1311 are unloaded from the tube 20, and the two are movable relative to each other. At this point, when the core mold and tube 20 are lifted, the balls 1311 no longer obstruct the tube 20, thus preventing the outer surface of the tube 20 from being scratched by the balls 1311.

[0062] To facilitate the installation of the spinning assembly, an outer sleeve 132 is fixedly mounted at the center of the workbench 1. The outer sleeve 132 is rotatably connected to the inner sleeve 139 via an upper bearing 136 and a lower bearing 134. A drive sleeve 133 is coaxially fixed to the lower end of the inner sleeve 139. The outer portion of the drive sleeve 133 is used to mount the spindle timing pulley.

[0063] Specifically, the top sleeve 137 and the inner sleeve 139 in this embodiment are fixed by welding or bolting. Taking the bolt connection as an example, screw holes perpendicular to their own central axes are provided on the side walls of the top sleeve 137 and the inner sleeve 139, and the corresponding bolts are inserted after the two screw holes are aligned.

[0064] More specifically, the inner sleeve 139 is a stepped sleeve structure, and 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 .

[0065] In some other embodiments, the pull rod can be replaced with a self-powered electric push rod or a cylinder to replace the manual disassembly and assembly of the blocking block 1310 relative to the cone sleeve 138 and the stop end face 1394 by workers.

[0066] In this embodiment, the conical sleeve 138 is formed by splicing together multiple segments (not shown) along its circumference. Each segment is provided with baffles at both ends along its circumference to form a slot for mounting the balls 1311. As a specific structural form, the number of segments is equal to the number of balls 1311.

[0067] The above specific implementation manner cannot be used as a limitation on the protection scope of the present invention. For those skilled in the art, any replacement, improvement or transformation made to the implementation manner of the present invention falls within the protection scope of the present invention.

[0068] Any matters not described in detail in the present invention are well-known technologies to those skilled in the art.

Claims

1. A ball spinning machine, characterized in that: The machine comprises a frame for supporting, a working space formed therein, a core mold capable of being raised and lowered is provided in the working space, a tube blank can be sleeved on the outside of the core mold, a spinning assembly capable of being rotated is installed below the core mold, the spinning assembly has a spinning cavity with an open upper end for accommodating 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 directions. 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, and 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 downward and the core mold does not move to complete the tube blank withdrawal.

2. The ball spinning machine 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. The slide is slidably connected to the columns.

3. The ball spinning machine according to claim 2, characterized in that: The lifting drive component includes a screw and a nut, the nut is rotatably connected to the crossbeam, the screw is arranged vertically, the lower end of the 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 machine according to claim 2, characterized in that: The spinning assembly includes a hollow main shaft, the lower end of the main shaft passes through the workbench, and the lower end of the main shaft is driven by a power source to achieve self-rotation.

5. The ball spinning machine according to claim 4, characterized in that: The main shaft includes an inner sleeve, and a top sleeve is fixedly installed on the upper end of the inner sleeve. The top sleeve includes an end plate, and 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, and 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 machine according to claim 5, characterized in that: 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 plugged into the side of the tapered sleeve away from the ball through the notch.

7. The ball spinning machine 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 machine according to claim 6, characterized in that: The cone sleeve is formed by splicing a plurality of blocks along its own circumference, and each block is provided with baffles at both ends along its own circumference to enclose a groove for ball installation.

9. The ball spinning machine according to claim 1, characterized in that: The insertion 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 machine according to claim 9, characterized in that: 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.

Images