CN219805400U - Single motor turret driving structure - Google Patents

Abstract

The utility model discloses a single-motor turret driving structure which comprises a cutter disc, a main shaft, a servo motor, a transmission shaft, a connecting sleeve, a transmission sleeve, a switching sleeve and a switching driving mechanism, wherein the power output end of the transmission shaft is connected with the power input end of the main shaft, the power output end of the transmission sleeve is connected with the cutter disc through a speed reducing mechanism, the connecting sleeve is sleeved on the output shaft of the servo motor, the switching sleeve is in sliding connection with the connecting sleeve through a spline, the outer side wall of the switching sleeve is provided with a front tooth end and a rear tooth end, the front tooth end is in meshed transmission with the power input end of the transmission shaft, the rear tooth end is in meshed transmission with the power input end of the transmission sleeve, and the switching driving mechanism drives the switching sleeve to slide on the connecting sleeve, so that the switching sleeve is in switching connection between the transmission shaft and the transmission sleeve. Compared with the prior art, the utility model can realize the functions of loop and cutter rotation driving by only one servo motor.

Description

Single motor turret driving structure

Technical Field

The utility model relates to the technical field of tool turret, in particular to a single-motor tool turret driving structure.

Background

The numerically controlled lathe is one powerful precise machine tool, and has turning tool, milling cutter, drill, screw tap and other cutting tools set inside the turret and controlled to feed and retract workpiece in preset program to complete the cutting operation.

Two motors are mainly installed on the existing cutter tower and respectively drive the cutter disc and the cutter to rotate. The turret with the structure has higher production cost, larger volume and heavier volume, and is inconvenient to install.

In view of the above, the present inventors have made intensive studies to solve the above problems, and have made the present utility model.

Disclosure of Invention

The utility model mainly aims to provide a single-motor turret driving structure which can effectively solve the technical problems.

In order to achieve the above object, the solution of the present utility model is:

the utility model provides a single motor sword tower drive structure, includes blade disc, main shaft, servo motor, transmission shaft, connecting sleeve, transmission sleeve, switching sleeve and switching actuating mechanism, the power take off end of transmission shaft is connected with the power input end of main shaft, and transmission sleeve's power take off end passes through speed reducing mechanism with the blade disc and is connected, the connecting sleeve cover is established on servo motor's output shaft, and switching sleeve passes through spline sliding connection with the connecting sleeve, is equipped with front tooth end and back tooth end on the lateral wall of switching sleeve, front tooth end and transmission shaft's power input end meshing transmission, back tooth end and transmission sleeve's power input end meshing transmission, switching actuating mechanism drive switching sleeve slides on the connecting sleeve, makes switching sleeve switch connection between transmission shaft and transmission sleeve.

Further, the switching driving mechanism comprises a fixed shaft sleeve, a locking disc, a movable fluted disc, a fixed fluted disc, a shifting fork disc and a connecting rod, wherein the locking disc and the fixed fluted disc are sleeved on the fixed shaft sleeve, a transmission shaft is arranged in the fixed shaft sleeve and is connected with the fixed fluted disc in a rotating way, the movable fluted disc is sleeved on the fixed fluted disc and is connected with the cutter disc in a locking way, an annular groove is formed in the switching sleeve, the shifting fork disc is sleeved on the annular groove, one end of the connecting rod is connected with the locking disc, and the other end of the connecting rod is connected with the shifting fork disc.

Further, the shift fork disc includes the main disk body and locking plate, the main disk body is the ring shape, is equipped with the connection boss on the outer circumference of main disk body, the tip of connecting rod inlays to be established on the connection boss and through the screw lock, the cooperation groove has been seted up to the side of main disk body, and the locking plate is semicircle annular, and the locking plate lock is in the cooperation inslot, and the inboard of locking plate involves in the ring channel, and the outside limit of locking plate is equipped with the cooperation boss of embedding cooperation groove.

Further, the reducing mechanism comprises a mounting base plate, a shell cover, a first transmission gear, a second transmission gear, a connecting seat and a driving shaft, wherein the shell cover is arranged on the mounting base plate, the transmission sleeve is arranged in the shell cover and is in rotary connection, an outer gear ring which is meshed with the first transmission gear and is driven is arranged on the outer side wall of the front end of the transmission sleeve, the connecting seat is fixedly arranged on the mounting base plate, the first transmission gear is sleeved on the connecting seat and is in rotary connection, and the second transmission gear is sleeved on the driving shaft.

Further, be equipped with round platform portion on the fixed axle sleeve, the locking dish is equipped with the gliding accommodation groove of confession round platform portion embedding, form the locking air cavity between accommodation groove and the round platform portion, form between fixed fluted disc and the locking dish and relax the air cavity, be equipped with first inlet port on the mounting plate, the second inlet port, first air vent, second air vent, first runner and second runner, communicate through first runner between first inlet port and the first air vent, communicate through the second runner between second inlet port and the second air vent, be equipped with first venthole and second venthole on the fixed axle sleeve, the one end and the first air vent intercommunication and the other end and the cavity intercommunication of relaxing of first venthole, the one end and the second air vent intercommunication and the other end and the locking air cavity intercommunication of second venthole.

Compared with the prior art, the utility model has the beneficial effects that the switching sleeve is driven to move forward by the switching driving mechanism, and the rear tooth end of the switching sleeve is meshed with the transmission sleeve, so that the servo motor can drive the cutter disc to rotate to realize cutter changing. The switching driving mechanism drives the switching sleeve to move backwards, and the front tooth end of the switching sleeve is meshed with the transmission shaft, so that the servo motor can drive the cutter to rotate to perform cutting work. The utility model can realize the functions of loop and driving the cutter to rotate by only one servo motor.

Drawings

Fig. 1 is a perspective view of the outline structure of the present utility model.

Fig. 2 is a perspective view of another external configuration of the present utility model.

Fig. 3 is a schematic cross-sectional structure of the present utility model.

Fig. 4 is a partial enlarged view of the area a in fig. 3.

Fig. 5 is a partial enlarged view of the region B in fig. 3.

Fig. 6 is a perspective view of an external structure of the fork plate.

Fig. 7 is a perspective view of a connection structure of the reduction mechanism.

Fig. 8 is a schematic sectional structure of the mounting baseplate.

Fig. 9 is a perspective view of the outer structure of the fixing boss.

In the figure:

cutter head 11, main shaft 12, locking hole 121, servo motor 13, transmission shaft 14,

A connecting sleeve 15, a transmission sleeve 16, a switching sleeve 17, a front tooth end 171,

Rear tooth end 172, annular groove 173, limit 174, fixed sleeve 21, round platform 211, first air outlet 212, second air outlet 213, locking disk 22, locking pin 221,

A movable fluted disc 23, a fixed fluted disc 24, a shifting fork disc 25, a main disc body 251, a locking plate 252,

Connecting protrusion 253, fitting groove 254, fitting boss 255, connecting rod 26, detecting rod 261, limit pin 31, limit shaft sleeve 32, limit boss 321, spring 33, mounting base plate 41, first air inlet 411, second air inlet 412, first air guide 413,

A second air vent 414, a first flow passage 415, a second flow passage 416, a housing cover 42,

A first transmission gear 43, a second transmission gear 44, a connecting seat 45, a driving shaft 46,

A detection plate 47, a detection boss 48, a first sensor 51, a second sensor 52,

Locking air cavity 61, releasing air cavity 62.

Detailed Description

In order to further explain the technical scheme of the utility model, the utility model is explained in detail by specific examples.

As shown in fig. 1-9, a single-motor turret driving structure comprises a cutter head 11, a main shaft 12, a servo motor 13, a transmission shaft 14, a connecting sleeve 15, a transmission sleeve 16, a switching sleeve 17 and a switching driving mechanism, wherein the power output end of the transmission shaft 14 is connected with the power input end of the main shaft 12, the power output end of the transmission sleeve 16 is connected with the cutter head 11 through a speed reducing mechanism, the connecting sleeve 15 is sleeved on the output shaft of the servo motor 13, the switching sleeve 17 is in sliding connection with the connecting sleeve 15 through a spline, a front tooth end 171 and a rear tooth end 172 are arranged on the outer side wall of the switching sleeve 17, the front tooth end 171 is in meshing transmission with the power input end of the transmission shaft 14, the rear tooth end 172 is in meshing transmission with the power input end of the transmission sleeve 16, and the switching driving mechanism drives the switching sleeve 17 to slide on the connecting sleeve 15, so that the switching sleeve is in switching connection between the transmission shaft 14 and the transmission sleeve 16.

Preferably, the switching driving mechanism comprises a fixed shaft sleeve 21, a locking disc 22, a movable fluted disc 23, a fixed fluted disc 24, a shifting fork disc 25 and a connecting rod 26, wherein the locking disc 22 and the fixed fluted disc 24 are sleeved on the fixed shaft sleeve 21, the transmission shaft 14 is arranged on the fixed shaft sleeve 21 to be connected in a rotating manner, the movable fluted disc 23 is sleeved on the fixed fluted disc 24 to be connected in a rotating manner, the movable fluted disc 23 is fixedly connected with the cutter disc 11, the locking disc 22 is arranged on the side edges of the fixed fluted disc 24 and the movable fluted disc 23, a first locking tooth is arranged on the side wall, close to one side of the movable fluted disc 23, of the locking disc 22, a second locking tooth is arranged on the side wall, close to one side of the locking disc 22, of the fixed fluted disc 24 and the movable fluted disc 23, and the first locking tooth and the second locking tooth can be mutually locked and meshed. The locking disc 22 can be driven to translate through an air pressure or hydraulic system, when the locking disc 22 is attached to the fixed fluted disc 24 and the movable fluted disc 23, the movable fluted disc 23 is locked and fixed, the cutter disc 11 cannot rotate at the moment, and the cutter in the cutter disc 11 can rotate for processing. When the locking disc 22 is separated from the fixed disc 24 and the movable disc 23, the movable disc 23 is loosened, and the movable disc 23 can drive the cutter head 11 to rotate for changing the cutter. The switching sleeve 17 is provided with an annular groove 173, the shifting fork disc 25 is sleeved on the annular groove 173, one end of the connecting rod 26 is connected with the locking disc 22, and the other end is connected with the shifting fork disc 25.

In this embodiment, a limiting pin 31 and a limiting shaft sleeve 32 are arranged in the connecting sleeve 15, a limiting groove 174 is arranged on the inner side wall of the switching sleeve 17, a limiting boss 321 embedded in the limiting groove 174 is arranged on the limiting shaft sleeve 32, the limiting boss 321 is slidably connected in the limiting groove 174 through a clamping ring, the front end of the limiting pin 31 penetrates through the limiting shaft sleeve 32 and is fixedly connected with the transmission shaft 14, a spring 33 is sleeved on the limiting pin 31, and two ends of the spring 33 respectively abut against the transmission shaft 14 and the limiting shaft sleeve 32. When the cutter head 11 is switched, the shifting fork disc 25 and the switching sleeve 17 move leftwards to drive the limiting shaft sleeve 32 to move together, and the limiting shaft sleeve 32 compresses the spring 33. When cutting work is carried out, the shifting fork disc 25 drives the switching sleeve 17 to move rightwards, at the moment, the limiting shaft sleeve 32 continuously drives the switching sleeve 17 to slightly move rightwards for a small distance under the acting force of the spring 33, the front tooth end 171 of the switching sleeve 17 is matched with the transmission shaft 14 for transmission, and a yielding gap exists between the front side wall and the rear side wall of the shifting fork disc 25 and the side walls of the two sides of the annular groove 173, so that friction between the connecting sleeve 15 and the shifting fork disc 25 in the high-speed rotation process can be effectively avoided, the connecting sleeve 15 is prevented from generating high temperature, the connecting sleeve 15 rotates more smoothly, and the service life of the connecting sleeve 15 is prolonged.

In order to facilitate the assembly and disassembly of the shifting fork disc 25, the shifting fork disc 25 comprises a main disc body 251 and a locking plate 252, the main disc body 251 is in a circular ring shape, a connecting boss 253 is arranged on the outer circumference of the main disc body 251, the end part of the connecting rod 26 is embedded on the connecting boss 253 and locked by a screw, a matching groove 254 is formed in the side face of the main disc body 251, the locking plate 252 is in a semicircular shape, the locking plate 252 is locked in the matching groove 254, the inner side of the locking plate 252 is involved in the annular groove 173, and a matching boss 255 embedded in the matching groove 254 is arranged on the outer side edge of the locking plate 252. After the structure is adopted, during installation, the locking plates 252 are symmetrically placed into the matching grooves 254 to be matched, and then the main disc body 251 and the two locking discs 22 are locked and fixed, so that the shifting fork disc 25 is fixedly installed in the matching grooves 254, and the assembly and disassembly are more convenient.

Preferably, the speed reducing mechanism comprises a mounting bottom plate 41, a housing cover 42, a first transmission gear 43, a second transmission gear 44, a connecting seat 45 and a driving shaft 46, wherein the housing cover 42 is arranged on the mounting bottom plate 41, the transmission sleeve 16 is arranged in the housing cover 42 for rotary connection, an outer gear ring which is meshed with the first transmission gear 43 for transmission is arranged on the outer side wall of the front end of the transmission sleeve 16, the connecting seat 45 is fixed on the mounting bottom plate 41 of the connecting seat 45, the first transmission gear 43 is sleeved on the connecting seat 45 for rotary connection, and the second transmission gear 44 is sleeved on the driving shaft 46. After adopting above-mentioned structure, when switching blade disc 11, switch sleeve 17 moves forward, and the rear tooth end 172 of switch sleeve 17 and the ring gear of transmission sleeve 16 front end intermesh, servo motor 13 drive connecting sleeve 15 rotate drive switch sleeve 17 rotate, drive transmission sleeve 16 rotation then, and transmission sleeve 16 passes through first drive gear 43 and the transmission of second drive gear 44 drive shaft 46 rotation. Through the above-mentioned reduction gears reduction transmission, can guarantee that driving motor's output shaft is rotatory fixed number of turns back, drive shaft 46 is rotatory a week to drive shaft 46 can drive the angle of blade disc 11 rotatory one station.

In this embodiment, the rear end of the driving shaft 46 is further provided with a detection plate 47, an outer circumference of the detection plate 47 is provided with a detection boss 48 protruding outward, and the housing cover 42 is provided with a first sensor 51 for sensing the detection boss 48. Each time the cutterhead 11 switches one station, the detection plate 47 rotates once, and the first sensor 51 can sense the detection boss 48, so that the driving shaft 46 can rotate at a correct angle. The rear end of the connecting rod 26 is connected with a detecting rod 261, and the housing cover 42 is provided with a second sensor 52 for sensing the detecting rod 261. The second sensor 52 is capable of sensing the telescopic length of the sensing lever 261 to thereby determine the position and state of the locking disc 22.

More preferably, in order to drive the locking disc 22 to move steadily, in this embodiment, the locking disc 22 is driven by an air pressure system to move, the fixed shaft sleeve 21 is provided with a circular platform portion 211, the locking disc 22 is provided with a containing groove for the circular platform portion 211 to insert and slide, a locking air cavity 61 is formed between the containing groove and the circular platform portion 211, a loosening air cavity 62 is formed between the fixed gear disc 24 and the locking disc 22, the mounting bottom plate 41 is provided with a first air inlet 411, a second air inlet 412, a first air outlet 413, a second air outlet 414, a first flow channel 415 and a second flow channel 416, the first air inlet 411 is communicated with the first air inlet 413 through the first flow channel 415, the second air inlet 412 is communicated with the second air outlet 414 through the second flow channel 416, the fixed shaft sleeve 21 is provided with a first air outlet 212 and a second air outlet 213, one end of the first air outlet 212 is communicated with the first air inlet 413, the other end is communicated with the loosening air cavity 62, and one end of the second air outlet 213 is communicated with the second air outlet 414, and the other end is communicated with the locking air cavity 61. When the cutter head 11 is rotated, air enters through the first air inlet hole 411, flows through the first flow channel 415 and the first air guide hole 413, enters into the first air outlet hole 212, enters into the loosening air cavity 62 through the first air outlet hole 212, and increases the air pressure in the loosening air cavity 62, so that the locking disc 22 is pushed to move leftwards. When the utility model performs cutting operation, air enters from the second air inlet hole 412, flows through the second flow passage 416 and the second air guide hole 414, enters into the second air outlet hole 213, enters into the locking air cavity 61 from the second air outlet hole 213, increases the air pressure in the locking air cavity 61, and pushes the locking disc 22 to move rightwards.

More preferably, the front end of the locking disc 22 is provided with a locking pin 221, the locking pin 221 is fixedly connected with the locking disc 22 through a T-shaped groove, and the main shaft 12 is provided with a locking hole 121 matched with the locking pin 221. When the cutter head 11 rotates, the locking disc 22 moves leftwards, and drives the locking pin 221 to be inserted into the locking hole 121, so as to lock the main shaft 12, prevent the main shaft 12 from rotating, and realize accurate orientation of the main shaft 12.

The working principle of the utility model is as follows:

when the utility model is used for cutting, the pneumatic system drives the locking disc 22 to be close to the movable fluted disc 23 and the fixed fluted disc 24, so that the locking disc 22 locks the movable fluted disc 23 to fix the cutter disc 11, and the connecting rod 26 moves backward under the driving of the locking disc 22, so that the shifting fork disc 25 is pushed to drive the switching sleeve 17 to translate backward along the axial direction, and the front tooth end 171 of the switching sleeve 17 is meshed with the inner gear ring in the matching cavity of the transmission shaft 14. Then the driving motor drives the connecting sleeve 15 and the switching cutter barrel to rotate, the driving shaft 14 is driven to rotate, and the driving shaft 14 drives the main shaft 12 to rotate through the bevel gear to cut. When the cutter is required to be switched by the rotary cutter head 11, the pneumatic system drives the locking disc 22 to move forwards along with the locking disc 22 away from the movable fluted disc 23 and the fixed fluted disc 24, so that the shifting fork disc 25 and the switching sleeve 17 are driven to translate forwards along the axial direction, the rear tooth end 172 of the switching sleeve 17 is meshed with the transmission sleeve 16 for transmission, the driving shaft 46 is driven to rotate through the speed reducing mechanism, the driving shaft 46 drives the movable fluted disc 23 to rotate through a gear, and then the cutter head 11 is driven to rotate to finish the cutter changing action.

Compared with the prior art, the cutter head has the beneficial effects that the output transmission direction of the servo motor 13 is switched through the shifting fork disc 25 and the switching sleeve 17, and the rotary cutter changing and the rotary cutter cutting of the cutter head 11 can be realized by only one servo motor 13, so that the manufacturing cost of the cutter head is greatly reduced, the whole volume of the cutter head is reduced, the cutter head is convenient to install, and the applicability is higher. In addition, the locking state switching of the cutter head 11 and the output transmission direction switching of the servo motor 13 can be simultaneously realized by adopting the pneumatic system, so that the structure is compact and simple, and the assembly of the whole machine is facilitated.

The above examples and drawings are not intended to limit the form or form of the present utility model, and any suitable variations or modifications thereof by those skilled in the art should be construed as not departing from the scope of the present utility model.

Claims (5)

1. The utility model provides a single motor sword tower drive structure, its characterized in that includes blade disc, main shaft, servo motor, transmission shaft, connecting sleeve, transmission sleeve, switching sleeve and switching actuating mechanism, the power take off end of transmission shaft is connected with the power input of main shaft, and transmission sleeve's power take off end passes through speed reducing mechanism with the blade disc and is connected, the connecting sleeve cover is established on servo motor's output shaft, and switching sleeve passes through spline sliding connection with the connecting sleeve, is equipped with front tooth end and rear tooth end on the lateral wall of switching sleeve, front tooth end and transmission shaft's power input meshing transmission, rear tooth end and transmission sleeve's power input meshing transmission, switching actuating mechanism drive switching sleeve slides on the connecting sleeve, makes switching sleeve switch connection between transmission shaft and transmission sleeve.

2. The single-motor turret driving structure according to claim 1, wherein the switching driving mechanism comprises a fixed shaft sleeve, a locking disc, a movable fluted disc, a fixed fluted disc, a shifting fork disc and a connecting rod, wherein the locking disc and the fixed fluted disc are sleeved on the fixed shaft sleeve, the transmission shaft is arranged in the fixed shaft sleeve to be rotationally connected, the movable fluted disc is sleeved on the fixed fluted disc to be rotationally connected, the movable fluted disc is fixedly connected with the cutterhead, an annular groove is formed in the switching sleeve, the shifting fork disc is sleeved on the annular groove, one end of the connecting rod is connected with the locking disc, and the other end of the connecting rod is connected with the shifting fork disc.

3. The single-motor turret driving structure according to claim 2, wherein the shift fork plate comprises a main plate body and a locking plate, the main plate body is circular, a connecting boss is arranged on the outer circumference of the main plate body, the end part of the connecting rod is embedded on the connecting boss and locked by a screw, a matching groove is formed in the side surface of the main plate body, the locking plate is semicircular, the locking plate is locked in the matching groove, the inner side of the locking plate is involved in the annular groove, and a matching boss embedded in the matching groove is arranged on the outer side of the locking plate.

4. A single motor turret driving structure according to claim 3, wherein the speed reducing mechanism includes a mounting plate, a housing cover, a first transmission gear, a second transmission gear, a connecting seat and a driving shaft, the housing cover is provided on the mounting plate, the transmission sleeve is provided in the housing cover for rotational connection, an outer wall of the front end of the transmission sleeve is provided with an outer gear ring engaged with the first transmission gear for transmission, the connecting seat is fixed on the mounting plate of the connecting seat, the first transmission gear is sleeved on the connecting seat for rotational connection, and the second transmission gear is sleeved on the driving shaft.

5. The single-motor turret driving structure according to claim 3, wherein the fixed shaft sleeve is provided with a circular truncated cone portion, the locking disc is provided with a containing groove for embedding and sliding the circular truncated cone portion, a locking air cavity is formed between the containing groove and the circular truncated cone portion, a loosening air cavity is formed between the fixed disc and the locking disc, the mounting base plate is provided with a first air inlet hole, a second air inlet hole, a first air guide hole, a second air guide hole, a first runner and a second runner, the first air inlet hole is communicated with the first air guide hole through the first runner, the second air inlet hole is communicated with the second air guide hole through the second runner, the fixed shaft sleeve is provided with a first air outlet hole and a second air outlet hole, one end of the first air outlet hole is communicated with the first air guide hole, the other end of the first air outlet hole is communicated with the loosening air cavity, and one end of the second air outlet hole is communicated with the second air guide hole, and the other end of the second air outlet hole is communicated with the locking air cavity.