spinning machine

Abstract

A spinning machine, comprising a spindle mechanism, a tailstock mechanism above the spindle mechanism, the spindle mechanism comprising a spindle, a bearing chamber, a bearing inside the bearing chamber, a lubricating oil circulation system, the tailstock mechanism comprising a frame, the tailstock mechanism further comprising: a motor, a drive shaft connected with an output shaft of the motor at one end, a connecting shaft slidably connected with the drive shaft at one end, a connecting piece provided at the other end of the connecting shaft, a die provided at the upper end of the spindle and capable of being connected with the connecting piece to realize synchronous rotation, a translation mechanism provided on the frame and connected with the connecting shaft to drive the connecting shaft to move, the spindle mechanism further comprising: a first cooling system provided in the lubricating oil circulation system, and a second cooling system connected with the bearing chamber, which can reduce workpiece burrs and avoid excessive temperature rise of the equipment.

Description

Technical Field

[0001] This invention relates to the technical field of metal material plastic forming equipment, and in particular to a spinning machine. Background Technology

[0002] Spinning machines are a common type of metal forming machinery. They can be classified in various ways according to different characteristics. For example, according to deformation characteristics, they can be divided into ordinary spinning machines and strong spinning machines; according to the form of the machine bed, they can be divided into horizontal spinning machines and vertical spinning machines; according to the tool (spinning wheel), they can be divided into single-wheel, double-wheel, three-wheel, four-wheel and ball-bearing spinning machines; according to the control method, they can be divided into mechanical, hydraulic copying and CNC spinning machines.

[0003] Observations show that during the spinning process of metal products, the workpiece often slips or falls off due to the high rotation speed and processing resistance. Therefore, many spinning machines have added a tail-top mechanism to assist in fixing the workpiece. However, the current tail-top mechanism lacks active equipment and adjustment mechanisms, resulting in insufficient effectiveness and convenience. In addition, some spinning machines, due to their size, weight, and structure, often place the main shaft drive mechanism and other parts in the pit below the spinning machine, causing difficulties in installation and maintenance.

[0004] In addition, spinning machines include bearings of various specifications and structures. During production, the rotating mechanism with the added tail mechanism experiences greater force, higher speed, and poor lubrication, resulting in the accumulation of a large amount of heat during use. If this heat is not dissipated in time, it will cause significant damage, such as reduced bearing life and decreased structural strength. Summary of the Invention

[0005] The purpose of this invention is to provide a spinning machine to solve the problems of the lack of a main power device in the tail top mechanism and the inability to dissipate the heat of the bearing in a timely manner after the addition of the tail top mechanism in the prior art.

[0006] The technical solution of the spinning machine provided by this invention is as follows:

[0007] A spinning machine includes a main spindle mechanism and a tailstock mechanism located above the main spindle mechanism. The main spindle mechanism includes a main spindle, a bearing chamber, a bearing located inside the bearing chamber, and a lubricating oil circulation system. The tailstock mechanism includes a frame and further includes: a motor mounted on the frame; a drive shaft, one end of which is connected to the output shaft of the motor; a connecting shaft, one end of which is slidably connected to the drive shaft; a connecting member located at the other end of the connecting shaft; a die located on the upper end of the main spindle and capable of connecting to the connecting member to achieve synchronous rotation; and a translation mechanism mounted on the frame and connected to a movable base to drive the connecting shaft to move. The main spindle mechanism further includes: a first cooling system located in the lubricating oil circulation system for reducing the temperature of the lubricating oil; and a second cooling system connected to the bearing chamber for reducing the temperature of the bearing chamber.

[0008] Preferably, the connector is a spline.

[0009] Preferably, the translation mechanism is a hydraulic cylinder, and the free end of the piston rod of the hydraulic cylinder is connected to the movable base.

[0010] Preferably, it further includes: a transmission shaft, one end of which is sleeved on the drive shaft and slidably connected to the drive shaft, and the other end is fixedly connected to the connecting shaft, and the inner wall of the transmission shaft and one end of the drive shaft are connected by a spline.

[0011] Preferably, it further includes: an upper bearing chamber, through which the drive shaft passes to support the drive shaft; the upper bearing chamber is connected to the translation base; the upper bearing chamber is disposed on the translation base, and the translation mechanism is connected to the translation base to drive the translation base to move.

[0012] Preferably, the spindle bearing chamber includes a first bearing chamber and a second bearing chamber, and the lubricating oil circulation system includes a lubricating oil tank, an oil pump, an oil inlet pipe, and a first bearing chamber connected in sequence. The first bearing chamber is provided with an oil outlet. The second bearing chamber is connected to the lubricating oil tank, and the first cooling system is connected to the second bearing chamber.

[0013] Preferably, the first cooling system is a heat-conducting aluminum plate, which is located in the second bearing chamber and is in close contact with the steel components of the main shaft mechanism.

[0014] Preferably, the oil outlet includes a circulating oil outlet and a bottom oil outlet, which are respectively located in the middle and bottom of the side wall of the first bearing chamber.

[0015] Preferably, the second cooling system includes a coolant tank, a pump, an inlet pipe, a first bearing chamber, and a return pipe connected in sequence. The return pipe is connected to the coolant tank, and the side wall of the first bearing chamber is provided with a deep groove. The inlet pipe and the return pipe are both connected to the deep groove.

[0016] Preferably, it further includes a third cooling system, which corresponds to the spindle and is used to reduce the temperature of the spindle; and the third cooling system includes a hollow coolant ring and a nozzle, the nozzle being disposed on the coolant ring and pointing towards the spindle, the coolant ring being arranged around the spindle, and the coolant ring being connected to the inlet pipe.

[0017] Analysis shows that by adding a tail-top rotation drive, the rotational motion of the tail-top mechanism can be synchronized with the rotational motion of the workpiece and the main shaft of the equipment, reducing workpiece slippage and damage. Furthermore, the tail-top mechanism's drive is located primarily in the upper part of the equipment, facilitating the installation and maintenance of the drive unit. This invention also features multiple cooling systems, achieving a stable and reliable cooling effect. Attached Figure Description

[0018] Figure 1 This is a top view of the structure (mainly including the tail mechanism) of an embodiment of the present invention;

[0019] Figure 2 for Figure 1 A schematic diagram of the main view structure of the shown portion;

[0020] Figure 3 for Figure 1 A schematic diagram of the left-side structure of the portion shown;

[0021] Figure 4 for Figure 3 A cross-sectional view of the structure along line CC.

[0022] Figure 5 This is a top view of an embodiment of the present invention (mainly including a spindle mechanism and a cooling system).

[0023] Figure 6 for Figure 5 A schematic diagram of the main structure of the coolant ring in the middle;

[0024] Figure 7 for Figure 6 A schematic cross-sectional view of the FF line along the middle section;

[0025] Figure 8 for Figure 5 A top view of the structure of the first bearing chamber in the middle;

[0026] Figure 9 for Figure 8Schematic diagram of the cross-sectional structure along line AA;

[0027] Figure 10 for Figure 8 Schematic diagram of the cross-sectional structure along line BB. Detailed Implementation

[0028] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0029] It should be noted beforehand that this invention also improves and innovates the tailstock mechanism and main shaft mechanism of the spinning machine, and adds a multiple cooling system. To make the improvements of this invention clearer to read and understand, they will be described in detail below. Regarding the accompanying drawings, to avoid making the drawings overly complex... Figures 1-4 The main focus is on the structure of the tail-top mechanism. Figures 5-10 The main display shows the structure of the spindle mechanism and the multiple cooling system.

[0030] like Figures 1-4 As shown, especially Figure 4 As shown, this embodiment of the invention includes a frame 111, a translation base 200, a motor 1, a drive shaft 2, a transmission shaft 3, an upper bearing chamber 4, a connecting shaft 5, a connecting piece 6, an upper mold 7, a mold 40, a translation mechanism 10, a spindle mechanism, and a multiple cooling system. The cavity between the upper mold 7 and the mold 40 is a space for fixing and forming the workpiece 20. To more clearly describe this embodiment, the views also show the workpiece 20 and the spindle 30 of the spindle mechanism, which is located below and connected to the mold 40.

[0031] The frame 111 and the translation base 200 described below mainly serve as supports and connectors. Their structure is not limited, but a rectangular beam structure is preferred. The motor 1 is fixedly mounted on the frame 111; preferably, the output shaft of the motor 1 is vertically positioned. One end of the drive shaft 2 is connected to the output shaft of the motor 1; a coaxial connection is preferred, and a bearing seat or similar support can be provided at the connection point. One end of the connecting shaft 5 is slidably connected to the drive shaft 2, meaning that power transmission and movement along the axial direction are possible between them. The connecting member 6 is located at the other end of the connecting shaft 5 and is mainly used to connect the mold 40 to achieve synchronous rotation. The mold 40 is connected to the connecting member 6 to achieve synchronous rotation. The translation mechanism 10 is mounted on the frame 111 and connected to the connecting shaft 5 to drive the connecting shaft 5 to move. In this embodiment, the connection between the translation mechanism 10 and the connecting shaft 5 is indirect; the translation mechanism 10 is achieved through the translation base 200, the upper bearing chamber 4, and the transmission shaft 3 described below. This should be understood. Specifically, as shown in the figure, the translation mechanism 10 is a hydraulic cylinder, and the free end of the piston rod 11 of the hydraulic cylinder is indirectly connected to the connecting shaft 5.

[0032] Preferably, the connector 6 is a keyed connection mechanism; more specifically, the connector 6 is a spline. The connector 6 is coaxial with the connecting shaft 5, has a rod-like structure, and passes through the upper mold 7 to connect with the mold 40.

[0033] To achieve a simple and stable sliding connection, this embodiment includes a drive shaft 3, one end of which is sleeved on and slidably connected to the drive shaft 2, while the other end is fixedly connected to the connecting shaft 5. Furthermore, the inner wall of the drive shaft 3 and one end of the drive shaft 2 are connected by a spline 41, allowing the drive shaft 2 to slide up and down inside the drive shaft 3.

[0034] To achieve stable support, this embodiment also includes an upper bearing chamber 4, through which the drive shaft 3 passes. A bearing is provided between the drive shaft 3 and the bearing chamber 4, thereby enabling the upper bearing chamber 4 to support the drive shaft 3. Furthermore, this embodiment includes a translation base 200, where the piston rods 11 of multiple hydraulic cylinders can be simultaneously connected to the translation base 200. The upper bearing chamber 4 is located on the translation base 200, and the piston rods 11 are connected to the translation base 200 to drive the translation base 200 to move.

[0035] Preferably, as shown in the figure, the moving direction of the translation mechanism 10, the central axis of the drive shaft 2, and the transmission shaft 3 are parallel.

[0036] In this embodiment, during operation, the drive shaft 2 is driven by the motor 1, which in turn drives the transmission shaft 3, connecting shaft 5, and connecting member 6 to rotate in sequence. The hydraulic cylinder, which serves as the translation mechanism 10, drives the translation base 200 to rise or fall as a whole. When a product needs to be processed, the translation base 200 is driven to fall as a whole by the hydraulic cylinder until the connecting member 6, the upper mold 7, the workpiece 20, and the surface of the mold 40 are completely in contact, at which point the hydraulic cylinder stops. When the workpiece 20 is completed, the translation base 200 is driven to rise as a whole by the hydraulic cylinder until it reaches the set limit position, at which point the hydraulic cylinder stops, and the tailstock mechanism separates from the mold 40.

[0037] During the above process, after the surfaces of connector 6, upper mold 7, workpiece 20 and mold 40 are completely in contact, motor 1 starts, and connector 6 pulls the main shaft mechanism 30 to rotate workpiece 20 and mold 40 synchronously.

[0038] Analysis shows that this embodiment can drive the workpiece to rotate, either alone or together with the spindle drive holding the workpiece, to complete the product processing. This ensures synchronized rotation of the workpiece and spindle, reducing workpiece slippage and damage, and facilitating installation and maintenance. However, the inherent heat generation of the spindle mechanism, and the potential for increased heat generation, should not be underestimated. Therefore, this embodiment incorporates a multi-stage cooling system.

[0039] like Figure 5As shown, the spindle mechanism of this embodiment of the invention, in addition to the spindle 30, also includes a first bearing chamber 100, a second bearing chamber 811, bearings located inside the bearing chambers (e.g., a bearing 812 is provided in the second bearing chamber 811), and a lubricating oil circulation system. A mold 40 is located at the top of the spindle 30. In summary, the multiple cooling systems include a first cooling system, a second cooling system, and a third cooling system. The first cooling system is located within the lubricating oil circulation system and is used to reduce the temperature of the lubricating oil. The second cooling system is connected to the bearing chamber (e.g., the first bearing chamber 100) and is used to reduce the temperature of the bearing chamber. The third cooling system corresponds to the spindle 30 and is used to reduce the temperature of the spindle 30.

[0040] As previously described, the spindle bearing housing includes a first bearing housing 100 and a second bearing housing 811. The lubricating oil circulation system includes a lubricating oil tank 800, an oil pump 802, an oil inlet pipe 804, and the first bearing housing 100 connected in sequence. The first bearing housing 100 is provided with an oil outlet. Specifically, the lubricating oil tank 800 and the oil pump 802 are connected via an oil pipe 801, and the oil inlet pipe 804 is connected to an oil inlet 102 located on the upper side wall of the first bearing housing 100, thereby providing lubricating oil to the bearing located within the cavity 1000. Preferably, as... Figure 5-10 As shown, the oil outlet includes a circulation oil outlet 105 and a bottom oil outlet 101, which are respectively located in the middle and bottom of the side wall of the first bearing chamber 100. The circulation oil outlet 105 is L-shaped, with its bottom opening located on the lower surface of the side wall of the first bearing chamber 100 and corresponding to the lubricating oil tank 800. This allows lubricating oil to flow directly into the upper open lubricating oil tank 800, reducing the complexity of the product structure.

[0041] To enable a single lubricating oil circulation system to simultaneously supply lubricating oil to both the first bearing chamber 100 and the second bearing chamber 811, the second bearing chamber 811 is connected to the lubricating oil tank 800, and the first cooling system is connected to the second bearing chamber 811. More preferably, the second bearing chamber 811 is located within the lubricating oil tank 800, and the second bearing chamber 811 "constitutes" a part of the lubricating oil tank 800. Further, the first cooling system is a heat-conducting aluminum plate 80, which is located within the second bearing chamber 811 and is in close contact with the steel components of the spindle mechanism. The heat-conducting aluminum plate 80 extends significantly beyond the second bearing chamber 811, utilizing its excellent thermal conductivity to rapidly conduct the heat from the lubricating oil to a larger area, resulting in rapid cooling.

[0042] Specifically, the second cooling system includes a coolant tank 900, a pump 901, an inlet pipe 902, a first bearing chamber 100, and a return pipe 907 connected in sequence. The return pipe 907 is connected to the coolant tank 900. The side wall of the first bearing chamber 100 is provided with a deep groove 104. The inlet pipe 902 and the return pipe 907 are connected to the deep groove 104. The deep groove 104 receives coolant to cool the side wall of the first bearing chamber 100. After absorbing and carrying away heat, the coolant enters the coolant tank 900, and the cycle continues.

[0043] Specifically, the upper side of the deep tank 104 is provided with a liquid outlet 106 for connection to the return pipe 907. In order to utilize the inlet pipe 902 simultaneously with the third cooling system described below, the inlet branch pipe 905 actually extends into the depth of the deep tank 104, as shown below. Figures 6-7 As shown, the inlet branch pipe 905 is connected to the inlet pipe 902 through the outlet 9050 on the coolant ring 903, the hollow cavity 9030 in the coolant ring 903, and the inlet connector 906.

[0044] As previously described, the third cooling system includes a hollow coolant ring 903 and nozzles 904. The nozzles 904 are mounted on the coolant ring 903 and point towards the main shaft 30. The coolant ring 903 surrounds the main shaft 30 and is connected to the inlet pipe 902. Specifically, the coolant ring 903 is a hollow ring structure with an internal hollow cavity 9030. An inlet connector 906 is fixed to the coolant ring 903, with one end connected to the inlet pipe 902 and the other end communicating with the hollow cavity 9030. Preferably, multiple nozzles 904 are arranged around the main shaft 30, providing coolant to the main shaft 30 from multiple angles for rapid cooling. After being sprayed onto the main shaft 30, the coolant flows downwards, collects in the deep tank 104, and is then transported to the coolant tank 900 by the return pipe 907.

[0045] As shown in the figure, the interior of the first bearing chamber 100 has a step 103, which can be used to place a bearing and provide support for the bearing.

[0046] In summary, this invention allows the cooling lubricating oil to carry away excess heat, and the cooled oil circulates in the bearing chamber. The addition of a coolant ring keeps the spindle constantly immersed in flowing cold water, allowing the water to carry away the shaft's heat; the cooled water is then recycled. A large number of aluminum plates are fixed inside the oil tank, utilizing aluminum's thermal conductivity to quickly remove heat from the oil. The excellent thermal conductivity of the aluminum plates and the steel body further reduces the oil temperature to operating temperature. Through multiple cooling methods, the damage caused by overheating is reduced.

[0047] As is known from common technical knowledge, this invention can be implemented through other embodiments that do not depart from its spirit or essential characteristics. Therefore, the disclosed embodiments described above are merely illustrative in all respects and are not the only ones. All modifications within the scope of this invention or equivalent to the scope of this invention are included in this invention.

Claims

1. A spinning machine, comprising a main spindle mechanism and a tailstock mechanism located above the main spindle mechanism, the main spindle mechanism comprising a main spindle, a bearing chamber, a bearing located inside the bearing chamber, and a lubricating oil circulation system, the tailstock mechanism comprising a frame, characterized in that, The tail-top mechanism also includes: The motor is mounted on the frame. A drive shaft, one end of which is connected to the output shaft of the motor; A connecting shaft, one end of which is slidably connected to the drive shaft; A connector is located at the other end of the connecting shaft; The mold is located at the upper end of the main shaft and can be connected to the connecting piece to achieve synchronous rotation; A translation mechanism is mounted on the frame and connected to the connecting shaft to drive the connecting shaft to move; The spindle mechanism also includes: A first cooling system is provided in the lubricating oil circulation system to reduce the temperature of the lubricating oil; The second cooling system is connected to the bearing chamber and is used to reduce the temperature of the bearing chamber; The bearing housing includes a first bearing housing and a second bearing housing. The lubricating oil circulation system includes a lubricating oil tank, an oil pump, an oil inlet pipe, and a first bearing housing connected in sequence. The first bearing housing is provided with an oil outlet. The second bearing housing is connected to the lubricating oil tank. The first cooling system is connected to the second bearing housing. A third cooling system, corresponding to the spindle, is used to reduce the temperature of the spindle; and the third cooling system includes a hollow coolant ring and a nozzle, the nozzle being disposed on the coolant ring and pointing towards the spindle, the coolant ring surrounding the spindle, and the coolant ring being connected to an inlet pipe; The first cooling system is a heat-conducting aluminum plate, which is located in the second bearing chamber and is in close contact with the steel components of the main shaft mechanism; The oil outlet includes a circulating oil outlet and a bottom oil outlet, which are respectively located in the middle and bottom of the side wall of the first bearing chamber. The second cooling system includes a coolant tank, a pump, an inlet pipe, a first bearing chamber, and a return pipe connected in sequence. The return pipe is connected to the coolant tank. The side wall of the first bearing chamber is provided with a deep groove. The inlet pipe and the return pipe are connected to the deep groove.

2. The spinning machine according to claim 1, characterized in that, The connector is a sliding key connection.

3. The spinning machine according to claim 1, characterized in that, The translation mechanism is a hydraulic cylinder.

4. The spinning machine according to claim 3, characterized in that, Also includes: The connecting shaft has a drive shaft fixed at one end and slidably connected to the drive shaft, and the other end is connected to the mold and the connecting piece. The inner wall of the connecting shaft and one end of the drive shaft are in clearance fit.

5. The spinning machine according to claim 4, characterized in that, Also includes: The upper bearing housing provides support for the drive shaft. A translation base, wherein the upper bearing chamber is disposed on the translation base, and the translation mechanism is connected to the translation base to drive the translation base to move; The upper bearing chamber is connected to the translation base; The free end of the piston rod of the hydraulic cylinder is connected to the translation base.

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