CN210160228U

CN210160228U - Vertical numerical control three-wheel hub spinning machine

Info

Publication number: CN210160228U
Application number: CN201920496061.XU
Authority: CN
Inventors: 刘中平; 梁海金
Original assignee: Jiangxi Dingli Spinning Equipment Co ltd
Current assignee: Jiangxi Dingli Spinning Equipment Co ltd
Priority date: 2019-04-12
Filing date: 2019-04-12
Publication date: 2020-03-20
Anticipated expiration: 2029-04-12

Abstract

The utility model discloses a vertical numerical control tricycle wheel hub spinning-lathe, it includes frame, rotatory last. The utility model discloses a structural design is ingenious, reasonable, and the upper and lower peripheral position of frame is the centre of a circle symmetry respectively and is equipped with three radial protruding basal portion to be connected through the guide pillar, effectively simplify overall structure, reduce occupation space, utilize the guide pillar to come to promote the support for pulley feed mechanism moreover, structural stability is good, non-deformable with rock, guaranteed the required rigidity of lathe and precision.

Description

Vertical numerical control three-wheel hub spinning machine

Technical Field

The utility model relates to a spinning-lathe technical field, concretely relates to vertical numerical control tricycle wheel hub spinning-lathe.

Background

Spin forming is a processing method of spin forming a metal plate along the shape of the outer periphery of a forming die by using a spin pressing mechanism, and can be applied to processing metal products taking an axis as a symmetrical processing center, such as kitchenware products like a kettle, a pot and a bowl, electrical parts like a lampshade and a loudspeaker part, automobile parts like a wheel and a wheel cover, and various products like a tank, a container and a cover.

The utility model discloses a publication number "CN 109201836A", entitled "wheel hub spinning machine", which comprises a frame, a main shaft module and a spinning module, wherein the main shaft module comprises a first shaft group and a second shaft group which are vertically arranged on the frame and used for installing wheel hub blanks, the first shaft group, the second shaft group and the wheel hub blanks are coaxial, a horizontal spinning platform is arranged in the middle of the frame, and the spinning module comprises three spinning platforms which are circumferentially distributed around the axis of the wheel hub blanks; the spinning module comprises a base, a guide rail, a tool apron, a longitudinal hydraulic cylinder and a transverse hydraulic cylinder, the guide rail is vertically arranged above the spinning platform, the base is movably arranged on the guide rail, the tool apron is movably arranged on the base and points to the wheel hub blank, the longitudinal hydraulic cylinder is longitudinally connected to the base, and the transverse hydraulic cylinder is fixedly connected to the base and connected with the tool apron. Although the spinning processing can be carried out on the hub blank, the machine frame of the spinning processing machine occupies a large space, has poor structural stability and low load strength, and is difficult to ensure the rigidity and the precision required by the machine tool.

SUMMERY OF THE UTILITY MODEL

Not enough to the aforesaid, the utility model aims to provide a vertical numerical control tricycle wheel hub spinning machine that structural design is ingenious, reasonable, and spinning force is big, and the machining precision is high, and job stabilization nature is good.

In order to achieve the above purpose, the utility model provides a technical scheme is: the utility model provides a vertical numerical control tricycle wheel hub spinning-lathe, its includes the frame, rotatory last first second of last first of last peripheral last first of last.

As an improvement of the utility model, the rotary upper pressure shaft comprises a hollow main shaft, a shaft shell, a top shell, a push rod, an elastic component, a linear driving device, a synchronizing wheel, a lower pressure oil cylinder, a lower pressure frame and a servo motor, wherein the lower pressure frame is arranged on the frame through a guide rail component, the lower pressure oil cylinder is arranged at the top of the frame and can drive the lower pressure frame to do lifting action, the shaft shell is arranged on the lower pressure frame, a first cylindrical roller bearing, a thrust roller bearing and a second cylindrical roller bearing are sequentially arranged in the shaft shell from top to bottom, the hollow main shaft is arranged on the inner rings of the first cylindrical roller bearing, the thrust roller bearing and the second cylindrical roller bearing, the lower end of the hollow main shaft extends from the bottom cover of the shaft shell to form a mold assembling part, the upper end of the hollow main shaft extends from the top cover of the shaft shell to form an installing part, the synchronizing wheel is sleeved on the installing part, the top shell is arranged on a synchronizing wheel, the upper portion of a center hole of the hollow main shaft is radially enlarged to form an assembly cavity, the lower end of the center hole is radially enlarged to form an accommodating cavity, the push rod is inserted into the center hole, the lower end of the push rod extends to the accommodating cavity to form a top head portion, the position of the push rod corresponding to the assembly cavity is radially enlarged to form a step, the upper end of the push rod extends out of the center hole to extend out of the top shell to form a driving portion, the driving portion is matched with the inner wall of the top shell through a tapered roller bearing, the linear driving device is arranged on the top shell and can drive the push rod to move downwards, and the servo motor is arranged on the pressing frame and connected with the synchronizing wheel.

As an improvement of the utility model, linear drive is the hydro-cylinder, and this hydro-cylinder sets up the top surface at the top shell perpendicularly, and the piston rod orientation of this hydro-cylinder stretch into the top shell with the drive portion docks mutually.

As an improvement of the present invention, the model of the tapered roller bearing is 30326, the model of the first cylindrical roller bearing is NN3040, the model of the thrust roller bearing is 29444E, and the model of the second cylindrical roller bearing is NU2344 EX.

As an improvement of the present invention, the pulley feeding mechanism includes an upper and lower sliding frame, a front and rear lead screw feedback device, an upper and lower lead screw feedback device, a vertical roller guide rail pair, a horizontal roller guide rail pair, a first upper and lower servo cylinder, a second upper and lower servo cylinder, a front and rear servo cylinder and a spinning pulley, a movable cavity is provided on the guide pillar, the upper and lower sliding frame is movably disposed on the movable cavity through the vertical roller guide rail pair, the first upper and lower servo cylinder and the second upper and lower servo cylinder are correspondingly disposed at the upper and lower positions of the guide pillar, and the upper and lower sliding frame can be simultaneously driven to perform a lifting action in the movable cavity; one end of the upper and lower screw rod feedback devices is connected with the upper and lower sliding frames, and the other end of the upper and lower screw rod feedback devices is connected with the guide support; the front and rear sliding frames are movably arranged on the upper and lower sliding frames through a horizontal roller guide rail pair, the front and rear servo oil cylinders are arranged on the upper and lower sliding frames and can drive the front and rear sliding frames to move front and rear in the movable cavity, one end of the front and rear screw rod feedback device is connected with the front and rear sliding frames, the other end of the front and rear screw rod feedback device is connected with the upper and lower sliding frames, and the spinning pulley is arranged at the front end position of the front and rear.

As an improvement of the utility model, the installation part is formed by the symmetrical outward bulge of the front two sides of the upper and lower sliding frames.

As an improvement of the utility model, the number of the vertical roller guide rail pairs is four groups, wherein two groups are symmetrically arranged at the positions of two side walls of the movable cavity close to the rear part, and the other two groups are symmetrically arranged at the positions of two sides of the opening of the movable cavity; the vertical roller guide rail pair comprises a linear guide rail and two roller sliding blocks matched with the linear guide rail, the linear guide rail is fixed on the guide pillar, and the two roller sliding blocks are fixed on the upper sliding frame and the lower sliding frame.

As an improvement of the utility model, the upper and lower sliding frames are provided with telescopic cavities matched with the outline of the front and rear sliding frames, the number of the horizontal roller guide rail pairs is four groups, wherein two groups of the horizontal roller guide rail pairs are symmetrically arranged at the two sides of the top surface of the telescopic cavities, and the other two groups of the horizontal roller guide rail pairs are symmetrically arranged at the two sides of the bottom surface of the telescopic cavities; the horizontal roller guide rail pair comprises a linear guide rail and two roller sliding blocks matched with the linear guide rail, the linear guide rail is fixed on the front and rear sliding frames, and the two roller sliding blocks are fixed on the telescopic cavity.

As an improvement of the present invention, the cylinder body of the first upper and lower servo cylinders is fixed on the guide support, and the piston rod of the first upper and lower servo cylinders faces downward and is connected to the top surface of the upper and lower carriages; the cylinder body of the second upper and lower servo oil cylinder is fixed on the guide support, and the piston rod of the second upper and lower servo oil cylinder is upward and connected to the bottom surface of the upper and lower sliding frames; the inside cavity of front and back balladeur train forms the holding chamber of front and back servo cylinder looks adaptation, the cylinder body of front and back servo cylinder is fixed in this holding intracavity, and the piston rod of this front and back servo cylinder extends towards the level of back and is connected on upper and lower balladeur train.

As an improvement of the utility model, lead screw feedback device includes lead screw, nut, bearing and absolute value encoder around, the nut is fixed the back of front and back balladeur train, the lead screw passes through the bearing setting on upper and lower balladeur train, and with nut looks adaptation, the absolute value encoder sets up on upper and lower balladeur train, and this absolute value encoder's pivot with the lead screw is connected.

The utility model has the advantages that: the utility model has the advantages of ingenious and reasonable structural design, the upper and lower peripheral positions of the frame are respectively provided with three radial convex base parts in circle center symmetry and are connected through the guide support, thereby effectively simplifying the whole structure, reducing the occupied space, and utilizing the guide support to lift and support the pulley feeding mechanism, the structural stability is good, the pulley feeding mechanism is not easy to deform and shake, and the rigidity and precision required by the machine tool are ensured; the thrust of a first upper and lower servo oil cylinder, a second upper and lower servo oil cylinder and a front and rear servo oil cylinder in the pulley feeding mechanism is 35T, and the thrust is large; the upper and lower sliding frames are driven to do lifting action through the synchronous linkage of the first upper and lower servo oil cylinders and the second upper and lower servo oil cylinders, so that the upward and downward pressure is effectively increased, and the spinning effect is good; and the upper and lower position of upper and lower balladeur train and the front and back position of front and back balladeur train are fed back in real time to lead screw feedback device and front and back lead screw feedback device about guaranteeing to feed the machining precision, effectively promote the spinning effect, guarantee product quality, the vice quantity of vertical roller guide rail and horizontal roller guide rail is four groups in addition, the cooperation is inseparable, effectively promotes whole operating stability, can satisfy the required heavy load of spinning machine, high accuracy, high rotational speed's requirement, difficult wearing and tearing moreover, long service life. The first cylindrical roller bearing, the thrust roller bearing and the second cylindrical roller bearing are arranged on a shaft shell in the rotary upper pressing shaft to match the hollow main shaft, the radial load can be effectively increased through the first cylindrical roller bearing and the second cylindrical roller bearing, the rotary upper pressing shaft is suitable for high-speed rotation, the axial and radial combined loads with the main axial load can be borne through the thrust roller bearing, the friction factor is low, the rotating speed of the main shaft is further increased, the machining efficiency is improved, the self-aligning effect is achieved, the machining precision is effectively improved, the bearing capacity of the whole main shaft structure is integrally enhanced, and the service life is prolonged; meanwhile, the linear driving device drives the push rod to move downwards, so that the material removing function can be realized, convenience is brought to processing operation, and time and labor are saved; in addition, an oil cooling pipeline and a water cooling circulation groove are arranged, so that the main shaft can be effectively cooled, the main shaft can work for a long time, and the working stability is good.

The present invention will be further explained with reference to the drawings and the embodiments.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic top view of the structure of fig. 1.

Fig. 3 is a schematic structural view of a-a section of fig. 1.

Fig. 4 is a schematic structural view of a section B-B of fig. 1.

Fig. 5 is a schematic structural view of the middle rotating upper pressing shaft of the present invention.

Fig. 6 is a schematic structural view of the hollow spindle of the present invention.

Fig. 7 is a schematic structural view of the center axle housing of the present invention.

Fig. 8 is a schematic structural view of the middle push rod of the present invention.

Fig. 9 is a schematic structural diagram of the middle pulley feeding mechanism of the present invention.

Fig. 10 is a rear view of the structure of fig. 9.

Fig. 11 is a schematic structural view of the section C-C of fig. 9.

Fig. 12 is a schematic structural view of the D-D section of fig. 9.

Fig. 13 is a schematic structural view of the section E-E of fig. 9.

Detailed Description

Referring to fig. 1 to 13, the vertical numerical control three-wheel hub spinning machine provided in this embodiment includes a frame 1, a rotating upper pressing shaft 2, a rotating lower pressing shaft 3, and three pulley feeding mechanisms 4, where the rotating upper pressing shaft 2 is disposed at an upper position of the frame 1 and faces downward, the rotating lower pressing shaft 3 is disposed at a lower position of the frame 1 corresponding to a lower position of the rotating upper pressing shaft 2 and faces the rotating upper pressing shaft 2, and three radial protrusion bases 11 are respectively symmetrically disposed at upper and lower peripheral positions of the frame 1 in a circle center manner, that is, the upper peripheral position of the frame 1 is symmetrically disposed at three radial protrusion bases 11 in a circle center manner, and the lower peripheral position of the frame 1 is symmetrically disposed at three radial protrusion bases 11 in a circle center manner. The included angle between two adjacent radial protrusion bases 11 is 120 degrees. The radial projection base 11 at the upper peripheral position is connected to the radial projection base 11 at the lower peripheral position by guide stays 12, and the three pulley feed mechanisms 4 are respectively provided on the guide stays 12 corresponding thereto toward the connecting axis between the rotary lower shaft 3 and the rotary upper shaft 2.

The upper and lower peripheral positions of the frame 1 are respectively provided with three radial protruding base parts 11 in a circle center symmetry manner and are connected through guide pillars 12, so that the whole structure is effectively simplified, the occupied space is reduced, the guide pillars 12 are used for lifting and supporting the pulley feeding mechanism 4, the structural stability is good, the pulley feeding mechanism is not easy to deform and shake, and the rigidity and the precision required by a machine tool are ensured.

The rotary upper pressure shaft 2 comprises a hollow main shaft 21, a shaft shell 22, a top shell 23, a push rod 24, an elastic component 25, a linear driving device 26, a synchronous wheel 27, a lower pressure oil cylinder 28, a lower pressure frame 29 and a servo motor 20. The lower pressing frame 29 is arranged on the frame 1 through a guide rail assembly, and the lower pressing oil cylinder 28 is arranged at the top of the frame 1 and can drive the lower pressing frame 29 to do lifting action.

The shaft housing 22 is arranged on the lower pressing frame 29, and an assembling position 227 for installing the first cylindrical roller bearing 201, an assembling position 228 for installing the thrust roller bearing 202 and an assembling position 229 for installing the second cylindrical roller bearing 203 are sequentially arranged in the shaft housing 22 from top to bottom. The first cylindrical roller bearing 201, the thrust roller bearing 202, and the second cylindrical roller bearing 203 are mounted on the mounting position 227, the mounting position 228, and the mounting position 229, respectively, in this order. The hollow main shaft 21 sequentially passes through the first cylindrical roller bearing 201, the thrust roller bearing 202 and the second cylindrical roller bearing 203, and is fixed on the inner rings of the first cylindrical roller bearing 201, the thrust roller bearing 202 and the second cylindrical roller bearing 203. The lower end of the hollow main shaft 21 extends out of the bottom cover 222 of the shaft shell 22 to form a mold assembling part 211, and the mold assembling part 211 is assembled with the hub positioning mold, so that the mounting stability is good.

The upper end of the hollow main shaft 21 extends out of the top cover 221 of the shaft housing 22 to form a mounting portion 4212, the synchronizing wheel 27 is sleeved on the mounting portion 4212, the top housing 23 is arranged on the synchronizing wheel 27, the upper portion of the central hole 213 of the hollow main shaft 21 is radially enlarged to form a mounting cavity 2131, the lower end of the central hole 213 is radially enlarged to form an accommodating cavity 2132, the push rod 24 is inserted into the central hole 213, the lower end of the push rod 24 extends into the accommodating cavity 2132 to form a top head portion 241, the position of the push rod 24 corresponding to the mounting cavity 2131 is radially enlarged to form a step 242, the upper end of the push rod 24 extends out of the central hole 213 to form a driving portion 243 in the top housing 23, and the driving portion 243 is matched with the inner wall of the.

The tapered roller bearing is preferably 30326, the first cylindrical roller bearing 201 is preferably NN3040, the thrust roller bearing 202 is preferably 29444E, and the second cylindrical roller bearing 203 is preferably NU2344 EX. In other embodiments, the tapered roller bearing, the cylindrical roller bearing and the thrust roller bearing 202 of the corresponding type may be selected according to the size of the main shaft structure and the required bearing pressure.

An oil cooling pipeline 225 is provided in the shaft housing 22, and cooling oil is introduced into the oil cooling pipeline 225 to cool the first cylindrical roller bearing 201, the thrust roller bearing 202, the second cylindrical roller bearing 203, and the hollow main shaft 21. The shaft housing 22 is provided with a water-cooling circulation tank 226, and the entire body can be cooled by injecting cooling water into the water-cooling circulation tank 226, so that the spindle can be operated for a long time and the life of the spindle can be prolonged.

In this embodiment, preferably, the elastic member 25 is a disc spring, which has a large elastic force and a good restoring effect. In other embodiments, the elastic member 25 may also be a cylindrical spring or an elastic rubber column.

Preferably, the outer diameter of the upper portion of the hollow main shaft 21 is gradually reduced to form a step matched with the first cylindrical roller bearing 201, and the matching effect is good.

The linear driving device 26 is disposed on the top shell 23 and can drive the push rod 24 to move downward. In the present embodiment, the linear driving device 26 is preferably an oil cylinder, which is vertically disposed on the top surface of the top case 23, and the piston rod of the oil cylinder is connected to the driving portion 243 toward the top case 23. When the piston rod of the oil cylinder extends out, the piston rod can push the driving part 243 to enable the push rod 24 to integrally move downwards, and the purpose of material removal is achieved. In other embodiments, the linear drive device 26 may be an air cylinder or a linear motor.

The servo motor 20 is arranged on the lower pressing frame 29 and is connected with the synchronous wheel 27 through a synchronous belt.

The accommodating cavity 2132 is provided with a wear-resistant sleeve 2102 matched with the push rod 24, so that the service life is effectively prolonged. The top head portion 241 is sleeved with a copper bush pressing cover 2103, so that the matching tightness is effectively improved, and the matching effect is good.

An upper labyrinth cover 223 and a lower labyrinth cover 224 which are correspondingly matched with the top cover 221 and the bottom cover 222 are arranged on the hollow main shaft 21. An upper labyrinth cover 223 and a lower labyrinth cover 224 are fixedly sleeved on the hollow main shaft 21. The top cover 221 and the upper labyrinth cover 223 are matched by a labyrinth seal structure, and the bottom cover 222 and the lower labyrinth cover 224 are matched by a labyrinth seal structure. Sealing effect is good, prevents that the foreign matter from getting into, promotes job stabilization nature.

In this embodiment, the rotating pressing shaft and the rotating pressing shaft have substantially the same structure and are installed in opposite directions.

During operation, because rationally be equipped with first cylindrical roller bearing 201 on axle housing 22, thrust roller bearing 202 and second cylindrical roller bearing 203 cooperate hollow main shaft 21, bear radial load through first cylindrical roller bearing 201 and the effective increase of second cylindrical roller bearing 203, be suitable for high-speed rotatory, can bear the axle that axial load is given first place to through thrust roller bearing 202, radial joint load, friction factor is lower, further promote processing main shaft rotational speed, accelerate machining efficiency, and have the aligning effect, effectively improve the machining precision, the bearing capacity of whole main shaft structure has been strengthened on the whole, prolonged service life. After the spinning is finished, the linear driving device 26 drives the push rod 24 to move downwards, extend out from the central hole 213 of the hollow main shaft 21 and press against the hub on the hub positioning die, so that the hub is separated from the hub positioning die, the purpose of material removal is realized, and the spinning machine is simple and convenient to operate, and time and labor are saved.

The pulley feeding mechanism 4 comprises a spinning pulley 41, an upper and lower sliding frame 42, a front and rear sliding frame 43, a front and rear screw rod feedback device 44, an upper and lower screw rod feedback device 45, a vertical roller guide rail pair 46, a horizontal roller guide rail pair 47, a first upper and lower servo oil cylinder 48, a second upper and lower servo oil cylinder 49 and a front and rear servo oil cylinder 40.

A movable cavity is arranged on the guide pillar 12, the upper and lower sliding frames 42 are movably arranged on the movable cavity through a vertical roller guide rail pair 46, and the first upper and lower servo oil cylinders 48 and the second upper and lower servo oil cylinders 49 are correspondingly arranged at the upper part and the lower part of the guide pillar 12 and can simultaneously drive the upper and lower sliding frames 42 to do lifting motion in the movable cavity; specifically, the cylinder body of the first up-down servo cylinder 48 is fixed to the guide post 12, and the piston rod of the first up-down servo cylinder 48 is connected downward to the top surface of the up-down carriage 42. The cylinder body of the second up-down servo cylinder 49 is fixed to the guide post 12, and the piston rod of the second up-down servo cylinder 49 is directed upward and connected to the bottom surface of the up-down carriage 42. One end of the up-down lead screw feedback device 45 is connected with the up-down carriage 42, the other end is connected with the guide pillar 12, and the spinning pulley 41 is arranged at the front end position of the front-back carriage 2 through a wheel carrier.

The front and rear carriages 43 are movably provided on the upper and lower carriages 42 via horizontal roller guide pairs 47, and the front and rear servo cylinders 40 are provided on the upper and lower carriages 42 and can drive the front and rear carriages 43 to move forward and backward in the movable chamber. Specifically, the inside of the front and rear carriages 43 is hollow to form an accommodating cavity matched with the front and rear servo cylinders 40, the cylinder bodies of the front and rear servo cylinders 40 are fixed in the accommodating cavity, and the piston rods of the front and rear servo cylinders 40 extend horizontally backwards and are connected to the upper and lower carriages 42.

One end of the front and rear screw rod feedback device 44 is connected to the front and rear carriages 43, and the other end is connected to the upper and lower carriages 42. Specifically, the front and rear screw feedback device 44 includes a screw 441, a nut 442, a bearing 443, and an absolute value encoder 444, the nut 442 is fixed to the back surface of the front and rear carriage 43, the screw 441 is disposed on the upper and lower carriages 42 through the bearing 443 and is adapted to the nut 442, the absolute value encoder 444 is disposed on the upper and lower carriages 42, and a rotation shaft of the absolute value encoder 444 is connected to the screw 441. When the front and rear carriages 43 move forward and backward, the screw 441 can be forced to rotate by the nut 442, so as to drive the rotating shaft of the absolute value encoder 444 to rotate, and feed back corresponding signals to the counting device to calculate the position, thereby quickly knowing the moving position of the front and rear carriages 43 in real time.

The structure of the upper and lower screw rod feedback devices 45 is the same as that of the front and rear screw rod feedback devices 44, but the mounting positions are different. Specifically, the upper and lower feed screw feedback device 45 includes a feed screw, a nut, a bearing, and an absolute value encoder, the nut is fixed to the top surface of the upper and lower carriage 42, the feed screw is disposed on the guide support 12 through the bearing and adapted to the nut, the absolute value encoder is disposed on the guide support 12, and a rotation shaft of the absolute value encoder is connected to the feed screw.

In order to facilitate installation and strengthen the structural strength of the upper and lower sliding frames 42, mounting portions 421 are symmetrically and outwards protruded on two sides of the front surface of the upper and lower sliding frames 42.

In this embodiment, the number of the vertical roller guide pairs 46 is preferably four, two of the vertical roller guide pairs are symmetrically arranged at the positions close to the rear of the two side walls of the movable cavity, and the other two vertical roller guide pairs are symmetrically arranged at the positions at the two sides of the opening of the movable cavity. The vertical roller guide pair 46 includes a linear guide fixed to the guide pillar 12 and two roller blocks fitted to the linear guide fixed to the upper and lower carriages 42. Wherein the two roller sliders of the vertical roller guide pair 46 in the two sets are fixed to the mounting portion 421.

The upper and lower carriages 42 are provided with telescopic cavities adapted to the contour of the front and rear carriages 43, and in this embodiment, the number of the horizontal roller guide pairs 47 is four, two of the groups are symmetrically arranged at two sides of the top surface of the telescopic cavity, and the other two groups are symmetrically arranged at two sides of the bottom surface of the telescopic cavity. The horizontal roller guide pair 47 includes a linear guide fixed on the front and rear carriages 43 and two roller sliders fitted to the linear guide fixed on the telescopic cavity.

The number of the vertical roller guide rail pairs 46 and the number of the horizontal roller guide rail pairs 47 are four, the vertical roller guide rail pairs and the horizontal roller guide rail pairs are matched tightly, the overall operation stability is effectively improved, the requirements of large load, high precision and high rotating speed required by a spinning machine can be met, and the spinning machine is not easy to wear and has long service life.

When the spinning machine works, when the upper and lower sliding frames 42 need to be driven to move downwards, the first upper and lower servo oil cylinders 48 perform ejection actions, and the second upper and lower servo oil cylinders 49 perform retraction actions simultaneously, so that the upper and lower sliding frames 42 are driven to perform lifting actions through synchronous linkage of the first upper and lower servo oil cylinders 48 and the second upper and lower servo oil cylinders 49, the upward and downward pressure is effectively increased, and the spinning effect is good; meanwhile, the upper and lower positions of the upper and lower sliding frames 42 and the front and rear positions of the front and rear sliding frames 43 are fed back in real time through the upper and lower screw rod feedback devices 45 and the front and rear screw rod feedback devices 44, so that the feeding machining precision is ensured, the spinning effect is effectively improved, and the product quality is ensured.

Variations and modifications to the above-described embodiments may occur to those skilled in the art, in light of the above teachings and teachings. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should fall within the protection scope of the claims of the present invention. Furthermore, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation. If the utility model discloses above-mentioned embodiment states, adopt rather than the same or similar structure and other lathe that obtain, all be in the utility model discloses the protection scope.

Claims

1. The utility model provides a vertical numerical control tricycle wheel hub spinning-lathe, its includes the frame, its characterized in that: it still includes rotatory last push shaft, rotatory push shaft and three pulley feed mechanism down, rotatory push shaft setting is in the upper portion position of frame, and towards the below, the rotatory push shaft that pushes down corresponds the rotatory lower position that pushes up the push shaft and sets up in the lower part position of frame, and moves towards rotatory push shaft in, the upper and lower peripheral position of frame is centre of a circle symmetry respectively and is equipped with three radial protruding basal portion, and the radial protruding basal portion that is located upper peripheral position is connected with the radial protruding basal portion that is located lower peripheral position through the guide pillar, and three pulley feed mechanism sets up respectively on rather than corresponding guide pillar, and the orientation rotatory push shaft and rotatory connection axis between the push shaft.

2. The vertical numerically controlled three-wheel hub spinning machine according to claim 1, wherein the rotating upper pressing shaft includes a hollow main shaft, a shaft housing, a top housing, a push rod, an elastic member, a linear driving device, a synchronizing wheel, a lower pressing cylinder, a lower pressing frame and a servo motor, the lower pressing frame is disposed on the frame through a guide rail assembly, the lower pressing cylinder is disposed on the top of the frame and can drive the lower pressing frame to move up and down, the shaft housing is disposed on the lower pressing frame, a first cylindrical roller bearing, a thrust roller bearing and a second cylindrical roller bearing are sequentially disposed in the shaft housing from top to bottom, the hollow main shaft is disposed on inner rings of the first cylindrical roller bearing, the thrust roller bearing and the second cylindrical roller bearing, a lower end of the hollow main shaft extends from a bottom cover of the shaft housing to form a mold assembling portion, and an upper end of the hollow main shaft extends from a top cover of the shaft housing to form an installing portion, the synchronizing wheel cover is established on the installation department, the top shell sets up on the synchronizing wheel, the radial increase in centre bore upper portion of cavity main shaft forms the assembly chamber, and the radial increase of this centre bore lower extreme forms the holding chamber, the push rod inserts the centre bore, and the lower extreme of this push rod extends to the holding chamber and forms the top portion, and the radial increase in position that this push rod corresponds the assembly chamber forms the step, and the upper end of this push rod stretches out the centre bore and stretches out the top shell and form the drive division, and this drive division passes through the inner wall looks adaptation of tapered roller bearing and top shell, linear drive device sets up on the top shell, and can drive the push rod is down, servo motor sets up on the pushing frame to through the hold-in range with the synchronizing wheel is connected.

3. The vertical numerically controlled tri-wheel hub spinning machine as recited in claim 2, wherein said linear actuator is a cylinder vertically disposed on the top surface of the top shell, and a piston rod of the cylinder is opposite to said actuator toward the top shell.

4. The vertical, digitally controlled, three-wheeled hub spinning machine according to claim 2, wherein the tapered roller bearing is model No. 30326, the first cylindrical roller bearing is model No. NN3040, the thrust roller bearing is model No. 29444E, and the second cylindrical roller bearing is model No. 2344 EX.

5. The vertical numerically controlled three-wheel hub spinning machine according to claim 1, wherein the pulley feeding mechanism comprises an upper and lower sliding frame, a front and rear screw rod feedback device, an upper and lower screw rod feedback device, a vertical roller guide rail pair, a horizontal roller guide rail pair, a first upper and lower servo cylinder, a second upper and lower servo cylinder, a front and rear servo cylinder and a spinning pulley, a movable cavity is provided on the guide pillar, the upper and lower sliding frame is movably arranged on the movable cavity through the vertical roller guide rail pair, the first upper and lower servo cylinder and the second upper and lower servo cylinder are correspondingly arranged at the upper and lower positions of the guide pillar, and can simultaneously drive the upper and lower sliding frame to perform lifting action in the movable cavity; one end of the upper and lower screw rod feedback devices is connected with the upper and lower sliding frames, and the other end of the upper and lower screw rod feedback devices is connected with the guide support; the front and rear sliding frames are movably arranged on the upper and lower sliding frames through a horizontal roller guide rail pair, the front and rear servo oil cylinders are arranged on the upper and lower sliding frames and can drive the front and rear sliding frames to move front and rear in the movable cavity, one end of the front and rear screw rod feedback device is connected with the front and rear sliding frames, the other end of the front and rear screw rod feedback device is connected with the upper and lower sliding frames, and the spinning pulley is arranged at the front end position of the front and rear.

6. The vertical numerically controlled three-wheel hub spinning machine according to claim 5, wherein the two sides of the front surface of the upper and lower carriages are symmetrically and outwardly protruded to form mounting portions.

7. The vertical numerically controlled three-wheel hub spinning machine according to claim 6, wherein the number of the vertical roller guide rail pairs is four, two of the vertical roller guide rail pairs are symmetrically arranged on two side walls of the movable cavity close to the rear position, and the other two vertical roller guide rail pairs are symmetrically arranged on two side positions of the opening of the movable cavity; the vertical roller guide rail pair comprises a linear guide rail and two roller sliding blocks matched with the linear guide rail, the linear guide rail is fixed on the guide pillar, and the two roller sliding blocks are fixed on the upper sliding frame and the lower sliding frame.

8. The vertical numerically controlled three-wheel hub spinning machine according to claim 5, wherein the upper and lower carriages are provided with four sets of telescopic cavities adapted to the contour of the front and rear carriages, two sets of the horizontal roller guide rail pairs are symmetrically arranged at two sides of the top surface of the telescopic cavities, and the other two sets are symmetrically arranged at two sides of the bottom surface of the telescopic cavities; the horizontal roller guide rail pair comprises a linear guide rail and two roller sliding blocks matched with the linear guide rail, the linear guide rail is fixed on the front and rear sliding frames, and the two roller sliding blocks are fixed on the telescopic cavity.

9. The vertical, numerically controlled, three-wheeled, hub spinning machine according to claim 5, wherein the cylinder body of said first upper and lower servo cylinders is fixed to said guide post, the piston rods of said first upper and lower servo cylinders being directed downward and attached to the top surface of said upper and lower carriages; the cylinder body of the second upper and lower servo oil cylinder is fixed on the guide support, and the piston rod of the second upper and lower servo oil cylinder is upward and connected to the bottom surface of the upper and lower sliding frames; the inside cavity of front and back balladeur train forms the holding chamber of front and back servo cylinder looks adaptation, the cylinder body of front and back servo cylinder is fixed in this holding intracavity, and the piston rod of this front and back servo cylinder extends towards the level of back and is connected on upper and lower balladeur train.

10. The vertical numerically controlled three-wheeled hub spinning machine according to claim 5, wherein the front and rear feed-back devices comprise a feed screw, a nut, a bearing, and an absolute encoder, the nut is fixed to the back of the front and rear carriages, the feed screw is mounted on the upper and lower carriages through the bearing and is adapted to the nut, the absolute encoder is mounted on the upper and lower carriages, and the shaft of the absolute encoder is connected to the feed screw.