Spinning machine for hub forming machining

Abstract

The invention relates to the technical field of machine tool equipment, in particular to a spinning machine for hub forming machining, which comprises a machine tool body, the machine tool body comprises a main shaft, a clamping table for clamping and placing a hub is fixed on the upper side of the main shaft, and a plurality of clamps for clamping the lower end part of the hub are mounted on the clamping table; the machine tool body further comprises a left outer spinning wheel, a right outer spinning wheel, a left inner spinning wheel and a right inner spinning wheel, wherein the left outer spinning wheel and the right outer spinning wheel are used for molding hubs from the outer sides, the left inner spinning wheel and the right inner spinning wheel are used for molding hubs from the inner sides, and the outer spinning wheels can be movably adjusted in the left-right direction and the up-down direction. When spinning forming is conducted on the hub, the lower end of the hub is clamped through a clamp, so that the outer spinning wheel and the inner spinning wheel can conduct inner and outer molding spinning on the hub at the same time, and the outer spinning wheel and the inner spinning wheel are matched in a spinning mode at the same time to achieve one-inner-one-outer linear interpolation motion. Therefore, the overall forming precision of the hub can be better guaranteed, and the spinning forming efficiency of the hub is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of machine tool equipment, and in particular to a spinning machine for hub forming processing. Background Art

[0002] Machine tool equipment is suitable for processing and producing various workpieces and products. When processing automobile wheels, spinning machines are used to spin the wheels. As a type of machine tool equipment, spinning machines are widely used.

[0003] The Chinese patent with publication number CN117340137A discloses a hub spinning machine, which relates to the technical field of hub production equipment, including a spinning machine, and a water cooling component and a cooling component are arranged inside the sleeve cooling plate. The spinning machine disclosed in the present invention reduces the temperature of the hub spoke by water cooling by setting a first cooling groove, thereby enhancing the strength of the hub spoke, and at the same time, the state of the cooling water in the first cooling groove is disrupted by the continuous rotation of the shifting blades, so as to more effectively take away the heat at the hub spoke, and when the hub is completed after the spinning work, the cooling water is introduced into the second cooling groove and sprayed out through a plurality of rotating nozzles to cool the surface of the hub, and then the rotation and pulling of the driving unit drive the plurality of rotating nozzles to swing back and forth, so as to better spray the cooling water on the surface of the hub, improve its cooling efficiency, and make the functionality of the entire equipment more comprehensive and perfect.

[0004] The above-mentioned wheel hub spinning machine rotates and clamps the wheel hub through the upper pressing shaft and the lower pressing shaft when spinning the wheel hub, and then uses the spinning wheels on the left and right sides to spin the wheel hub. However, this forming method only uses the outer spinning wheel to apply force from the outside to spin, and cannot spin the inner side of the wheel hub, and cannot ensure the overall forming accuracy of the wheel hub. At the same time, the shaping efficiency of the wheel hub is not high only by applying external spinning force. Summary of the invention

[0005] In order to solve the problem that the above-mentioned wheel hub spinning machine cannot guarantee the overall forming accuracy of the wheel hub and the shaping efficiency of the wheel hub is not high, the present invention proposes a spinning machine for wheel hub forming processing.

[0006] In order to solve the above technical problems, the present invention is achieved through the following technical solutions: a spinning machine for wheel hub forming processing, comprising a machine tool body, the machine tool body comprising a main shaft, a clamping table for clamping and placing the wheel hub is fixed on the upper side of the main shaft, a plurality of clamps for clamping the lower end of the wheel hub are installed on the clamping table, the machine tool body also comprises two left and right external spinning pressing wheels for shaping the wheel hub from the outside and two left and right internal spinning pressing wheels for shaping the wheel hub from the inside, the external spinning pressing wheels can be moved and adjusted in the left and right directions and in the up and down directions, two left and right support arms that can be raised and lowered are installed on the machine tool body, one end of the support arm facing the wheel hub can be telescopically adjusted, and one end of the support arm facing the wheel hub is rotatably connected to a vertically downward swing arm, the lower end of the swing arm can swing in the left and right directions, and the inner spinning pressing wheel is installed at the lower end of the swing arm; A mounting frame is rotatably installed at the center of the inner spinning pressure wheel, and the upper end of the mounting frame is rotatably connected to the lower end of the swing arm. The lower end of the swing arm is located on the left and right sides of the mounting frame and is fixed with adjusting hydraulic cylinders. The push rods at the lower ends of the two adjusting hydraulic cylinders are respectively pressed tightly against the positions of the mounting frame near the left and right edges.

[0007] As a preferred solution, a lock hole is provided on the side of the adjusting hydraulic cylinder, and a longitudinally arranged push rod is fixed to the lower end of the push rod of the adjusting hydraulic cylinder.

[0008] As a preferred solution, installation grooves for installing the adjusting hydraulic cylinder are provided near the left and right sides of the lower end surface of the swing arm, and rotating brackets are fixed near the front and rear sides of the lower end surface of the swing arm. A set screw is threadedly installed on the side of the swing arm at the position corresponding to the installation groove, and one end of the set screw is inserted in the lock hole.

[0009] As a preferred solution, the mounting frame includes a support plate, a rotating joint rotatably connected to the rotating bracket is fixed at the upper end of the support plate, and a mounting shaft for rotatably mounting the inner spinning wheel is fixed at the lower end of the support plate, and a retaining ring is fixed at the lower end of the mounting shaft.

[0010] As a preferred solution, the support arm includes a guide rod and an adjustment rod, a mounting cavity is provided inside the guide rod, and the upper side and left and right ends of the mounting cavity are both opened to communicate with the outside, and the left end of the adjustment rod is inserted inside the mounting cavity; A fixing seat is fixed to the inner bottom of the installation cavity, a swing hydraulic cylinder is hinged to the upper end of the fixing seat, and a top rod of the swing hydraulic cylinder is hinged to the upper end of the swing arm; The position of the swing arm near the upper end is rotatably connected with the guide rod, a driving motor is fixed on the left side of the fixing seat, and an output shaft of the driving motor passes through the fixing seat and is fixed with a lead screw threadedly connected with the adjusting rod.

[0011] As a preferred solution, a blocking cover is fixed at the upper end of the guide rod, and a dust-blocking corrugated plate is fixed between the left end of the blocking cover and the upper end of the swing arm.

[0012] As a preferred solution, both ends of the dust-proof corrugated plate are fixed with vertical downward hanging plates, and the left end of the blocking cover and the right side of the swing arm near the upper end are fixed with hanging seats for inserting and fixing the hanging plates downward.

[0013] As a preferred solution, a handle is fixed on the upper side of the cover, and a plurality of buckle plates are fixed on the front and rear sides of the cover, and raised clamping platforms are fixed on opposite sides of the buckle plates on the front and rear sides.

[0014] As a preferred solution, the front and rear side walls of the installation cavity are both provided with a plurality of guide slots, and the front and rear side walls of the installation cavity are both provided with buckle slots for buckling the buckle plate near the upper end.

[0015] As a preferred solution, two front and rear guide plates are fixed to the left end of the adjustment rod, a plurality of raised clips are fixed to opposite sides of the front and rear guide plates, and an adjustment plate is fixed between the front and rear guide plates.

[0016] Compared with the prior art, the present invention has the following beneficial effects: When the wheel hub is spin-formed, the lower end of the wheel hub is clamped by a fixture so that the outer spinning wheel and the inner spinning wheel can simultaneously perform inner and outer shaping and spinning on the wheel hub. The outer spinning wheel and the inner spinning wheel simultaneously spin together to achieve an inner and outer linear interpolation motion, thereby better ensuring the overall forming accuracy of the wheel hub and greatly improving the efficiency of the spinning forming of the wheel hub. The position and force direction of the inner spinning wheel can be adjusted in real time through the swing of the swing arm, so as to better meet the spinning forming of the inside of the wheel hub and greatly improve the precision of the spinning forming of the wheel hub; The inner spinning wheel is rotatably mounted on the lower end of the swing arm by means of a mounting frame, and the tilt angle of the inner spinning wheel can be adjusted in real time through the telescopic cooperation of the adjustment hydraulic cylinders on the left and right sides, so as to better adapt to the spinning forming of the inner surface of the hub, and has good flexibility in use; The support arm formed by the guide rod and the adjustment rod can realize the telescopic adjustment of the support arm. At the same time, the installation cavity opened on the inner side of the guide rod is used to install and store the swing hydraulic cylinder. At the same time, the installation cavity also realizes the installation and storage of the drive motor and the lead screw. While realizing the swing of the drive arm and the extension and retraction of the drive arm, these drive components are avoided from occupying space, so that the support arm and the swing arm can better save space while meeting the use requirements; The blocking cover and the dust-blocking corrugated plate block the upper port of the installation cavity to prevent the entry of dust from the outside. At the same time, the dust-blocking corrugated plate can be telescopically coordinated with the swing of the swing arm, so as to better adapt to the closed protection of the installation cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the machine tool body of the present invention; Figure 2 It is a schematic diagram of the connection state between the inner rotating pressing wheel and the swing arm of the present invention; Figure 3 It is a schematic diagram of the regulating hydraulic cylinder of the present invention; Figure 4 is a schematic diagram of a swing arm of the present invention; Figure 5 is a schematic diagram of the mounting frame of the present invention; Figure 6 is a schematic diagram of a support arm of the present invention; Figure 7 is a schematic diagram of the internal structure of the support arm of the present invention; Figure 8 is a schematic diagram of a dustproof corrugated plate of the present invention; Fig. 9 is a schematic diagram of a blocking cover of the present invention; Fig.10 is a schematic diagram of a guide rod of the present invention; Fig.11 It is a schematic diagram of an adjusting rod of the present invention.

[0018] In the figure: 1. spindle; 2. fixture; 3. machine tool body; 4. clamping table; 5. external rotating pressure wheel; 6. internal rotating pressure wheel; 7. swing arm; 71. set screw; 72. rotating bracket; 73. mounting slot; 8. support arm; 81. guide rod; 811. guide slot; 812. buckle slot; 82. adjusting rod; 821. guide plate; 822. adjusting plate; 823. clamping rib; 9. adjusting hydraulic cylinder; 91. lock hole; 92. push rod; 10. mounting frame; 101. rotating joint; 102. supporting plate; 103. mounting shaft; 104. retaining ring; 11. dustproof corrugated plate; 111. hanging plate; 12. cover; 121. buckle plate; 122. handle; 13. swing hydraulic cylinder; 14. driving motor; 15. fixing seat; 16. screw rod. DETAILED DESCRIPTION

[0019] like Figure 1 As shown, a spinning machine for wheel hub molding processing comprises a machine tool body 3, the machine tool body 3 comprises a main shaft 1, a clamping table 4 for clamping and placing the wheel hub is fixed on the upper side of the main shaft 1, a plurality of clamps 2 for clamping the lower end of the wheel hub are installed on the clamping table 4, the machine tool body 3 also comprises two left and right outer spinning wheels 5 for molding the wheel hub from the outside and two left and right inner spinning wheels 6 for molding the wheel hub from the inside, when the wheel hub is spin-molded, the clamp 2 is used to clamp the lower end of the wheel hub so that the outer spinning wheel 5 and the inner spinning wheel 6 can simultaneously spin the wheel hub inside and outside, and the outer spinning wheel 5 and the inner spinning wheel 6 simultaneously spin-molded to realize an inner-outer linear interpolation motion, thereby being able to better ensure the overall molding accuracy of the wheel hub, and also greatly improving the efficiency of the spinning molding of the wheel hub; The outer spinning wheel 5 can be moved and adjusted in the left and right directions and in the up and down directions. Two left and right support arms 8 that can be raised and lowered are installed on the machine tool body 3. The end of the support arm 8 facing the wheel hub can be telescopically adjusted, and the end of the support arm 8 facing the wheel hub is rotatably connected to a vertically downward swing arm 7. The lower end of the swing arm 7 can swing in the left and right directions. The inner spinning wheel 6 is installed at the lower end of the swing arm 7. The position and force direction of the inner spinning wheel 6 can be adjusted in real time through the swing of the swing arm 7, so as to better meet the spin forming requirements of the inside of the wheel hub and greatly improve the precision of the spin forming of the wheel hub.

[0020] like Figure 2 As shown, a mounting frame 10 is rotatably installed at the center of the inner spinning wheel 6, and the upper end of the mounting frame 10 is rotatably connected to the lower end of the swing arm 7. The lower end of the swing arm 7 is located on the left and right sides of the mounting frame 10 and is fixed with adjusting hydraulic cylinders 9. The push rods at the lower ends of the two adjusting hydraulic cylinders 9 are respectively pressed tightly against the positions of the mounting frame 10 near the left and right edges. The inner spinning wheel 6 is rotatably installed on the lower end of the swing arm 7 by utilizing the mounting frame 10, and the inclination angle of the inner spinning wheel 6 can be adjusted in real time through the telescopic cooperation of the adjusting hydraulic cylinders 9 on the left and right sides, so as to better adapt to the spinning forming of the inner profile of the hub, and has good flexibility in use.

[0021] like Figure 3 As shown, a locking hole 91 is provided on the side of the adjusting hydraulic cylinder 9, and the adjusting hydraulic cylinder 9 uses the locking hole 91 to achieve locking cooperation when installed on the swing arm 7; A longitudinally arranged push rod 92 is fixed to the lower end of the push rod of the adjusting hydraulic cylinder 9. The adjusting hydraulic cylinder 9 can better slide with the plane on the mounting frame 10 by using the push rod 92 when pushing the inner spinning wheel 6 for angle adjustment.

[0022] like Figure 4 As shown, the lower end surface of the swing arm 7 is provided with mounting grooves 73 for mounting the adjusting hydraulic cylinder 9 near the left and right sides, and the side surface of the swing arm 7 is threadedly mounted with a set screw 71 at a position corresponding to the mounting groove 73, one end of the set screw 71 is inserted into the locking hole 91, and the adjusting hydraulic cylinder 9 is installed in the mounting groove 73, and the set screw 71 is screwed so that one end of the set screw 71 is inserted into the locking hole 91, thereby locking and fixing the adjusting hydraulic cylinder 9 after installation; A rotating bracket 72 is fixed to the lower end surface of the swing arm 7 near the front and rear sides, and the swing arm 7 is rotatably connected to the mounting frame 10 via the rotating bracket 72 .

[0023] like Figure 5 As shown, the mounting frame 10 includes a support plate 102, and a rotating joint 101 rotatably connected to the rotating bracket 72 is fixed to the upper end of the support plate 102, and the support plate 102 is rotatably connected to the rotating bracket 72 through the rotating joint 101; A mounting shaft 103 for rotatably mounting the inner spinning wheel 6 is fixed to the lower end of the support plate 102 , and a retaining ring 104 is fixed to the lower end of the mounting shaft 103 . The support plate 102 utilizes the mounting shaft 103 and the retaining ring 104 to rotatably mount the inner spinning wheel 6 .

[0024] like Figure 6 and Figure 7 As shown, the support arm 8 includes a guide rod 81 and an adjustment rod 82. A mounting cavity is provided inside the guide rod 81, and the upper side and both left and right ends of the mounting cavity are opened to communicate with the outside. The left end of the adjustment rod 82 is inserted inside the mounting cavity, and one end of the adjustment rod 82 is inserted in the mounting cavity to achieve a movable sleeve connection with the guide rod 81, so as to achieve telescopic adjustment of the support arm 8. A fixing seat 15 is fixed to the inner bottom of the installation cavity, and a swing hydraulic cylinder 13 is hinged on the upper end of the fixing seat 15. The top rod of the swing hydraulic cylinder 13 is hinged to the upper end of the swing arm 7, and the swing hydraulic cylinder 13 is used to drive the swing arm 7 to swing and adjust. The swing arm 7 is rotatably connected to the guide rod 81 near the upper end. A drive motor 14 is fixed to the left side of the fixed seat 15. The output shaft of the drive motor 14 passes through the fixed seat 15 and is fixed with a screw rod 16 threadedly connected to the adjusting rod 82. The drive motor 14 drives the screw rod 16 to rotate, and the rotating screw rod 16 drives the adjusting rod 82 to perform telescopic adjustment.

[0025] like Figure 6 As shown, a baffle cover 12 is fixed at the upper end of the guide rod 81, and a dust-blocking corrugated plate 11 is fixed between the left end of the baffle cover 12 and the upper end of the swing arm 7. The baffle cover 12 and the dust-blocking corrugated plate 11 block the upper end of the installation cavity to prevent the entry of external dust. At the same time, the dust-blocking corrugated plate 11 can be telescopically coordinated with the swing of the swing arm 7, so as to better adapt to the closed protection of the installation cavity.

[0026] like Figure 8 As shown, the left and right ends of the dust-proof corrugated plate 11 are fixed with vertical downward hanging plates 111, and the left end of the blocking cover 12 and the right side of the swing arm 7 near the upper end are fixed with hanging seats for inserting the hanging plates 111 downward. The dust-proof corrugated plate 11 is fixedly installed by inserting the hanging plates 111 at both ends into the hanging seats on the blocking cover 12 and the swing arm 7, which also facilitates the disassembly of the dust-proof corrugated plate 11.

[0027] like Fig. 9 As shown, a handle 122 is fixed on the upper side of the blocking cover 12, and the handle 122 provided on the blocking cover 12 facilitates gripping when installing and removing the blocking cover 12; A plurality of buckle plates 121 are fixed to the front and rear sides of the blocking cover 12, and a raised clamping platform is fixed to the opposite sides of the buckle plates 121 on the front and rear sides. The blocking cover 12 is clamped on the inner side of the upper port of the installation cavity by the buckle plates 121 and is clamped and fixed by the raised clamping platform.

[0028] like Fig.10 As shown, the front and rear side walls of the installation cavity are provided with a plurality of guide slots 811, and the guide slots 811 provided in the installation cavity are used to guide the adjustment rod 82 when performing telescopic adjustment; The front and rear side walls of the installation cavity are provided with buckle grooves 812 near the upper end for buckling the buckle plate 121 . The buckle grooves 812 provided in the installation cavity are used to cooperate with the clamping of the buckle plate 121 .

[0029] like Fig.11 As shown, the left end of the adjusting rod 82 is fixed with two front and rear guide plates 821, and the opposite sides of the front and rear guide plates 821 are fixed with a plurality of protruding clip ribs 823. The adjusting rod 82 is inserted into the inner side of the installation cavity by means of the guide plates 821, and is clipped into the guide clip groove 811 by means of the clip ribs 823 for movable guidance. The installation cavity installs and accommodates the two guide plates 821, and the gap between the two guide plates 821 is used to accommodate the driving motor 14 and the screw rod 16. At the same time, the gap set between the two guide plates 821 can prevent the swing hydraulic cylinder 13 from interfering when the adjusting rod 82 moves, thereby accommodating the driving components without arranging the driving components on the outside to occupy space. An adjusting plate 822 is fixed between the front and rear guide plates 821 , and the adjusting plate 822 cooperates with the rotation of the screw rod 16 to drive the adjusting rod 82 to perform telescopic movement.

[0030] In this embodiment, when the wheel hub is spin-formed, it is placed on the clamping table 4, and the wheel hub is clamped and fixed by the clamp 2 on the clamping table 4. At this time, the spindle 1 drives the wheel hub to rotate at a high speed, and the outer spinning wheel 5 spins the wheel hub from the outside by adjusting the horizontal and vertical movements, while the inner spinning wheel 6 spins the inner cavity of the wheel hub by adjusting the horizontal and vertical directions of the support arm 8 and swinging the swing arm 7; When the inner spinning wheel 6 is spinning, the swing arm 7 and the inner spinning wheel 6 are extended into the inner side of the wheel hub by the lifting and telescopic adjustment of the support arm 8. At this time, the swing arm 7 is driven to swing by the telescopic swing hydraulic cylinder 13, and the swinging swing arm 7 drives the inner spinning wheel 6 to perform spinning control; When the inner spinning wheel 6 is spinning, the extension and contraction of the adjusting hydraulic cylinders 9 on the left and right sides are controlled in real time according to the needs of the inner surface forming of the hub to adjust the angle of the inner spinning wheel 6, thereby completing the spinning forming of the inner surface of the hub.

[0031] The above are preferred implementation modes of the present invention. Those skilled in the art to which the present invention belongs can also change and modify the above implementation modes. Therefore, the present invention is not limited to the above specific implementation modes. Any obvious improvements, substitutions or modifications made by those skilled in the art on the basis of the present invention belong to the protection scope of the present invention.

Claims

1. A spinning machine for wheel hub forming processing, comprising a machine tool body (3), the machine tool body (3) comprising a main shaft (1), a clamping table (4) for clamping and placing the wheel hub is fixed on the upper side of the main shaft (1), and a plurality of clamps (2) for clamping the lower end of the wheel hub are installed on the clamping table (4), characterized in that: The machine tool body (3) further comprises two left and right external spinning wheels (5) for shaping the wheel hub from the outside and two left and right internal spinning wheels (6) for shaping the wheel hub from the inside, the external spinning wheels (5) being movable and adjustable in the left and right directions and in the up and down directions, and two left and right support arms (8) being adjustable in height are mounted on the machine tool body (3), the end of the support arm (8) facing the wheel hub being adjustable in telescopic manner, and the end of the support arm (8) facing the wheel hub being rotatably connected to a swing arm (7) extending vertically downward, the lower end of the swing arm (7) being capable of swinging in the left and right directions, and the internal spinning wheels (6) being mounted on the lower end of the swing arm (7); A mounting frame (10) is rotatably mounted at the center of the inner-spinning pressure wheel (6); the upper end of the mounting frame (10) is rotatably connected to the lower end of the swing arm (7); the lower end of the swing arm (7) is located on the left and right sides of the mounting frame (10); and adjusting hydraulic cylinders (9) are fixed thereto; the push rods at the lower ends of the two adjusting hydraulic cylinders (9) are respectively pressed against the positions of the mounting frame (10) close to the left and right edges.

2. A spinning machine for wheel hub forming according to claim 1, characterized in that: A locking hole (91) is provided on the side of the adjusting hydraulic cylinder (9), and a longitudinally arranged push rod (92) is fixed to the lower end of the push rod of the adjusting hydraulic cylinder (9).

3. A spinning machine for wheel hub forming according to claim 2, characterized in that: The lower end surface of the swing arm (7) is provided with mounting grooves (73) for mounting the adjusting hydraulic cylinder (9) near the left and right sides, and the lower end surface of the swing arm (7) is fixed with rotating brackets (72) near the front and rear sides, and a stop screw (71) is threadedly mounted on the side surface of the swing arm (7) at a position corresponding to the mounting groove (73), and one end of the stop screw (71) is inserted into the lock hole (91).

4. The spinning machine for wheel hub forming according to claim 3, characterized in that: The mounting frame (10) comprises a support plate (102), a rotating joint (101) rotatably connected to the rotating bracket (72) being fixed at the upper end of the support plate (102), a mounting shaft (103) rotatably mounted on the inner spinning wheel (6) being fixed at the lower end of the support plate (102), and a retaining ring (104) being fixed at the lower end of the mounting shaft (103).

5. The spinning machine for wheel hub forming according to claim 1, characterized in that: The support arm (8) comprises a guide rod (81) and an adjustment rod (82); a mounting cavity is provided inside the guide rod (81); the upper side and left and right ends of the mounting cavity are both opened to communicate with the outside; the left end of the adjustment rod (82) is inserted inside the mounting cavity; A fixing seat (15) is fixed to the inner bottom of the installation cavity, a swing hydraulic cylinder (13) is hingedly connected to the upper end of the fixing seat (15), and a top rod of the swing hydraulic cylinder (13) is hingedly connected to the upper end of the swing arm (7); The swing arm (7) is rotatably connected to the guide rod (81) at a position close to the upper end thereof. A drive motor (14) is fixed to the left side of the fixed seat (15). The output shaft of the drive motor (14) passes through the fixed seat (15) and is fixed with a screw rod (16) threadedly connected to the adjustment rod (82).

6. The spinning machine for wheel hub forming according to claim 5, characterized in that: A blocking cover (12) is fixed at the upper end of the guide rod (81), and a dust blocking corrugated plate (11) is fixed between the left end of the blocking cover (12) and the upper end of the swing arm (7).

7. A spinning machine for hub forming according to claim 6, characterized in that: The left and right ends of the dust shield corrugated plate (11) are both fixed with hanging plates (111) pointing vertically downwards, and the left end of the shield cover (12) and the right side of the swing arm (7) near the upper end are both fixed with hanging seats for inserting and fixing the hanging plates (111) downwards.

8. The spinning machine for hub forming according to claim 7, characterized in that: A handle (122) is fixed on the upper side of the blocking cover (12), and a plurality of buckle plates (121) are fixed on both the front and rear sides of the blocking cover (12), and a raised clamping platform is fixed on the opposite sides of the buckle plates (121) on both the front and rear sides.

9. A spinning machine for hub forming according to claim 8, characterized in that: The front and rear side walls of the installation cavity are both provided with a plurality of guide slots (811), and the front and rear side walls of the installation cavity are both provided with buckle slots (812) near the upper end for buckling the buckle plate (121).

10. A spinning machine for hub forming according to claim 9, characterized in that: Two front and rear guide plates (821) are fixed to the left end of the adjustment rod (82), a plurality of protruding retaining ribs (823) are fixed to opposite sides of the front and rear guide plates (821), and an adjustment plate (822) is fixed between the front and rear guide plates (821).

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