CN208600714U - A kind of Improvement type numerically controlled lathe - Google Patents

Abstract

The utility model relates to numerically controlled lathe technical field, more specifically, it relates to a kind of Improvement type numerically controlled lathe, including permanent-magnet servo motor, three-phase power circuit, short-circuit closed circuit, switching switch and brake controller.When permanent-magnet servo motor power-off, brake controller control switching switch disconnects three-phase power circuit, switching switch connection short circuit closed circuit is controlled simultaneously, permanent-magnet servo motor is in short-circuit condition at this time, the coil of permanent-magnet servo motor is by opposition, opposition makes the output shaft of permanent-magnet servo motor and the rotation direction of screw rod on the contrary, moving component i.e. at this time would not glide.The mode of braking uses circuit control, to improve the braking efficiency of moving component, rapid reaction, control is flexibly.In addition, the numerically controlled lathe is additionally provided with the shield for blocking processing bit, the center of gravity of main shaft is lower, improves the stability of spindle operation, and the bottom end of lathe bed is equipped with the pedestal combined in groined type and triangle, and stability is stronger.

Description

A kind of Improvement type numerically controlled lathe

Technical field

The utility model relates to numerically controlled lathe technical fields, more specifically, it relates to a kind of Improvement type numerically controlled lathe.

Background technique

Numerically controlled lathe is to use relatively broad one of numerically-controlled machine tool at present.It is mainly used for axial workpiece or disk-like accessory Inside and outside cylindrical surface, any cone angle inside and outside circular conical surface, it is complicated turn round in the machinings such as positive camber and cylinder, tapered tread, And can be carried out grooving, drilling, reaming, fraising and bore hole etc..

Numerically controlled lathe includes for processing the moving component of part and being installed on the ball guide screw nat of lathe, the rolling Screw nut pair includes that rotation is carried on the screw rod of lathe and the nut being threadedly connected on screw rod, and the moving component is fixed It is installed on nut, the screw rod is arranged diagonally downward, and the moving component is arranged along the length direction of screw rod, works as numerically controlled lathe Suddenly when power-off, since ball guide screw nat has the invertibity of movement, moving component, which is affected by gravity, to glide, to prevent Moving component glides scrapping of causing tool damage or part to process, and numerically controlled lathe domestic demand installs the system that braking motion component glides Dynamic device.

Traditional brake apparatus relies on machine driving, and reaction is slower when braking, and brake is caused to postpone, for numerically controlled lathe this It is strong influence for class high-speed precision digital control lathe.

Utility model content

In view of the above shortcomings of the prior art, the purpose of the utility model is to provide a kind of Improvement type numerically controlled lathe, have The advantages of braking efficiency of raising moving component, rapid reaction.

The above-mentioned technical purpose of the utility model has the technical scheme that a kind of Improvement type numerical control lathe Bed, including metal plate housing, the lathe bed in metal plate housing, be slidably connected to lathe bed and for load bearing element moving component, Be rotatably dispose in lathe bed and be arranged diagonally downward screw rod, with the nut of wire rod thread cooperation and set on lathe bed and for driving The permanent-magnet servo motor of screw rod rotation, the moving component is fixedly installed in nut and slides along the length direction of screw rod, described Permanent-magnet servo motor is coupled with three-phase power circuit and short-circuit closed circuit, the three-phase power circuit and the short circuit closure electricity Switching switch is coupled between road, the switching switch is electrically connected with the brake controller that can be used for braking permanent-magnet servo motor；

When permanent-magnet servo motor is powered, the brake controller control switching switch connection three-phase power circuit, control Switching switch disconnects short-circuit closed circuit；When permanent-magnet servo motor power-off, the brake controller control switching switch is disconnected Three-phase power circuit, control switching switch connection short circuit closed circuit；

Further include the mouth that reloads for being set to metal plate housing side, be slidably connected to metal plate housing outer wall and for blocking the mouth that reloads Mobile door, set on metal plate housing outer wall and the hydraulic station that is used to provide power and set on metal plate housing and for controlling numerical control The electric cabinet of lathe movement.

By using above-mentioned technical proposal, when permanent-magnet servo motor power-off, the brake controller control switching switch Three-phase power circuit is disconnected, while controlling switching switch connection short circuit closed circuit, permanent-magnet servo motor is in short-circuit shape at this time State, the coil inside permanent-magnet servo motor form a current loop, and coil cuts the permanent magnetism magnetic strength inside permanent-magnet servo motor When line, coil is by an opposition, because this opposition makes the output shaft and screw rod of permanent-magnet servo motor Rotation direction on the contrary, the output shaft of i.e. permanent-magnet servo motor is remain stationary, will not rotate, moving component at this time is just not It can glide.The mode that the braking motion component glides uses circuit control, to improve the braking efficiency of moving component, reacts Quickly, control flexibly, not will cause the case where brake postpones.

Preferably, the hydraulic station includes hydraulic pump, driving motor, fuel tank and direction valve, is fixedly mounted on the fuel tank There is the first temperature sensor for measuring tank temperature and for reducing the air-cooled cooling for being back to temperature oily in fuel tank Device, the air cooled chiller and electric cabinet electrical connection, first temperature sensor is provided with standard value, when the reality of fuel tank When temperature is greater than standard value, first temperature sensor triggers electric cabinet and electric cabinet is made to start air cooled chiller.

By using above-mentioned technical proposal, when the temperature of fuel tank is greater than standard value, the triggering of the first temperature sensor is automatically controlled Case simultaneously makes electric cabinet start air cooled chiller, cooling processing is carried out to the oil passed back into fuel tank, by driving motor band Hydrodynamic press pump recycles the oil in fuel tank, completes the temperature-fall period of oil, uses the temperature of the first temperature sensor measurement fuel tank It is strong to spend high sensitivity, accuracy, numerically controlled lathe safety in production can be effectively improved.

Preferably, temperature controlling box is fixedly installed on the fuel tank, first temperature sensor is fixedly installed in temperature controlling box On.

By using above-mentioned technical proposal, temperature controlling box can transmit the heat of fuel tank in the first temperature sensor, while energy Enough protect the first temperature sensor against damages.

Preferably, the electric cabinet includes controller, chamber door, the thermovent set on chamber door, the heat friendship set on chamber door inner wall Change inner cover, multiple heat dissipations set on the heat exchange outer cover of chamber door outer wall and between heat exchange inner cover and heat exchange outer cover Piece, the cooling fin are located at thermovent, are covered with the first radiator fan in the heat exchange, and the is covered with outside the heat exchange Two radiator fans, first radiator fan and second radiator fan are distributed up and down, and multiple cooling fins are located at first Between radiator fan and the second radiator fan.

By using above-mentioned technical proposal, when controller needs to radiate, heat exchange inner cover is by a large amount of heat of electric cabinet It gathers together, heat is shed in being located at extraneous heat exchange outer cover in a manner of heat transmitting cooling fin later, reduces control The temperature of device ambient enviroment processed is discharged so that the heat on controller is persistently transferred to electric cabinet through cooling fin, the first radiation air The air-flow and external air flow that fan and the second radiator fan are conducive in electric cabinet form convection current, dissipate to realize to the quick of controller Heat improves the purpose of lathe runnability, in addition, heat exchange inner cover and heat exchange outer cover can protect cooling fin, reduces damage The case where occur.

Preferably, it is covered with outer thermovent outside the heat exchange, interior thermovent is covered in the heat exchange.

By using above-mentioned technical proposal, outer thermovent makes heat exchange outer cover less to the shielded area of cooling fin, interior Thermovent makes heat exchange inner cover less to the shielded area of cooling fin, and more conducively the circulation of air, cooling fin radiate, Production cost is reduced simultaneously.

Preferably, the electric cabinet is equipped with second temperature sensor, first radiator fan and second radiation air Fan is electrically connected with the controller, and the second temperature sensor is provided with predetermined temperature value；When the actual temperature of electric cabinet is greater than When predetermined temperature value, the second temperature sensor trigger controller makes controller start the first radiator fan and the second heat dissipation Fan.

By using above-mentioned technical proposal, when the temperature of controller is below preset temperature value, second temperature sensor Not needing trigger controller makes controller start the first radiator fan and the second radiator fan, when the temperature of controller is default Temperature value or when more than preset temperature value, second temperature sensor ability trigger controller makes controller start the first radiation air Fan and the second radiator fan radiate, and save electric energy.

Preferably, the outer wall of the metal plate housing is equipped with sliding rail, and the movement door is equipped with linear bearing, the linear axis Sliding sleeve is held on the outside of sliding rail.

By using above-mentioned technical proposal, so that the straightness of mobile door when moving is higher, slides more stable, stream Smooth Du Genggao.

Preferably, the lathe bed is equipped with the spindle assemblies for driving parts turn, and the upper surface of the lathe bed is in incline Inclined-plane obliquely；The spindle assemblies include being carried on the main shaft in frame side, one end of the main shaft by frame side and rotation It is described that the bottom end for being installed on lathe bed upper surface, and the bottom end one of lathe bed upper surface are bolted by frame side equipped with main motor Body formed to have abutting stupefied, the abutting is stupefied and clamping abutting has the abutting block being fixedly installed on lathe bed between frame side, described Abut it is stupefied be equipped with mounting groove, the mounting groove is installed with the tensioned screw being threadedly connected to by frame side.

By using above-mentioned technical proposal, it is installed on the bottom end of lathe bed upper surface by frame side, further reduced and be installed on The center of gravity of main shaft in frame side, and then the stability of main shaft when rotated is higher, the machining accuracy of numerically controlled lathe is higher；It abuts Setting that is stupefied, abutting block and tensioned screw, further increases the stability being installed on lathe bed by frame side, due to the upper table of lathe bed The inclined face in face setting, therefore be connected to abutting block under the action of self gravity and main shaft gravity by frame side, and abuts stupefied branch The power for holding abutting block balances each other, and further increases the fixed stability for leaning on frame side of bolt.

Preferably, the lathe bed slidably connects adjustment seat along the direction close to and far from main shaft, and the main motor is fixed It is installed in adjustment seat, the output shaft of the main motor is equipped with driving wheel, and the main shaft is equipped with driven wheel, the driving wheel Belt is arranged with on the driven wheel；The adjustment seat is equipped with the strip-shaped hole arranged along the glide direction of adjustment seat, the item Shape hole is installed with for positioning adjustment seat and being threadedly connected to the screw on lathe bed.

By using above-mentioned technical proposal so that it is convenient to which worker can use the elastic of duration adjustment belt according to belt Degree unclamps screw when belt pulley relaxation, and adjustment seat is slid into suitable position, then furbuckles to the direction far from main shaft ?；In addition, unclamping screw when needing replacing installation belt, adjustment seat is slided to the direction close to main shaft, in driving wheel Upper belt is covered between driven wheel, adjustment seat is slid into suitable position to the direction far from main shaft again later, finally tighten spiral shell Silk facilitates worker to replace belt.

Preferably, the lathe bed is equipped with the shield blocked in screw rod, and the shield is integral type construction.

By using above-mentioned technical proposal, the shield of one-piece construction compares multi-section type shield, can avoid processing bit It falls on screw rod, influences the machining accuracy of numerically controlled lathe.

In conclusion the utility model has the following beneficial effects:

1, when permanent-magnet servo motor powers off, the brake controller control switching switch disconnects three-phase power circuit, together When control switching switch connection short circuit closed circuit, permanent-magnet servo motor is in short-circuit condition at this time, inside permanent-magnet servo motor Coil form a current loop, when coil cuts the permanent magnetism magnetic induction line inside permanent-magnet servo motor, coil is anti-by one To active force, because this opposition makes the output shaft of permanent-magnet servo motor and the rotation direction of screw rod on the contrary, i.e. forever The output shaft of magnetic servo motor is remain stationary, and will not be rotated, and moving component at this time would not glide.The braking motion portion The mode that part glides uses circuit control, to improve the braking efficiency of moving component, rapid reaction, control flexibly, will not The case where causing brake to postpone；

2, when the temperature of fuel tank is greater than standard value, the first temperature sensor triggering electric cabinet simultaneously makes electric cabinet start wind Cold type cooler carries out cooling processing to the oil passed back into fuel tank, drives hydraulic pump to the oil in fuel tank by driving motor It is recycled, completes the temperature-fall period of oil, it is strong using the temperature sensitivity height of the first temperature sensor measurement fuel tank, accuracy, Numerically controlled lathe safety in production can be effectively improved；

3, when controller needs to radiate, heat exchange inner cover gathers together a large amount of heat of electric cabinet, later by dissipating Backing is shed heat in being located at extraneous heat exchange outer cover in a manner of heat transmitting, reduces the temperature of controller ambient enviroment, It is discharged so that the heat on controller is persistently transferred to electric cabinet through cooling fin, the first radiator fan and the second radiator fan are conducive to Air-flow and external air flow in electric cabinet form convection current, to realize the rapid cooling to controller, improve lathe runnability Purpose, in addition, the case where heat exchange inner cover and heat exchange outer cover can protect cooling fin, and reduction damages.

Detailed description of the invention

It, below will be to embodiment or the prior art in order to illustrate more clearly of the technical scheme in the embodiment of the utility model Attached drawing needed in description is briefly described, it should be apparent that, the accompanying drawings in the following description is only that this is practical new Some embodiments of type for those of ordinary skill in the art without any creative labor, can be with It obtains other drawings based on these drawings.

Fig. 1 is the overall structure diagram of the utility model embodiment；

Fig. 2 is the partial schematic diagram for the assembly relation that the utility model embodiment is used to embody mobile door and metal plate housing；

Fig. 3 is the structural schematic diagram of the utility model embodiment medial bed；

Fig. 4 is the enlarged drawing in Fig. 3 at A；

Fig. 5 is the cross-sectional view of the utility model embodiment medial bed；

Fig. 6 is the circuit diagram in the utility model embodiment；

Fig. 7 is another viewing angle constructions schematic diagram of the utility model embodiment；

Fig. 8 is the structural schematic diagram of hydraulic station in the utility model embodiment；

Fig. 9 is the perspective view of the explosion of chamber door in the utility model embodiment, heat exchange outer cover and heat exchange inner cover；

Figure 10 is in the utility model embodiment for embodying the assembly relation of chamber door, heat exchange outer cover and heat exchange inner cover Partial schematic diagram.

Appended drawing reference: 1, metal plate housing；2, lathe bed；3, mobile door；4, sliding rail；5, linear bearing；6, observation window；7, it seals Side；8, main shaft；9, chuck；10, main motor；11, moving component；12, screw rod；13, permanent-magnet servo motor；14, nut；15, three Phase power circuit；16, short-circuit closed circuit；17, brake controller；18, hydraulic station；19, hydraulic pump；20, driving motor；21, Fuel tank；22, direction valve；23, the first temperature sensor；24, air cooled chiller；25, temperature controlling box；26, electric cabinet；27, chamber door； 28, heat exchange inner cover；29, heat exchange outer cover；30, cooling fin；31, the first radiator fan；32, the second radiator fan；33, outer to dissipate Hot mouth；34, interior thermovent；35, second temperature sensor；36, shaft coupling；38, frame side is leaned on；39, it abuts stupefied；40, block is abutted； 41, mounting groove；42, tensioned screw；43, adjustment seat；44, belt；45, shield.

Specific embodiment

The utility model is described in further detail below in conjunction with attached drawing.

A kind of Improvement type numerically controlled lathe, referring to Fig. 1 and Fig. 2, including being in the metal plate housing 1 of rectangle, being set to metal plate housing 1 Interior lathe bed 2, the mouth that reloads for being opened in 1 side of metal plate housing are slidably connected to 1 outer wall of metal plate housing and for blocking the mouth that reloads Mobile door 3.Specifically, the upper surface of metal plate housing 1 is fixedly installed with sliding rail 4, there are two linear bearings for installation on mobile door 3 5, two 5 sliding sleeves of linear bearing are set to 4 outside of sliding rail, so that the straightness of mobile door 3 when moving is higher, and sliding is more Steadily, fluency is higher.In addition, mobile door 3 is also equipped with Transparent Parts and is formed with the observation window 6 of diverging, exist convenient for worker After closing mobile door 3, the working condition inside numerically controlled lathe is checked from the external world.The one side edge of mobile door 3 is also fixedly installed with For being fastened on the edge sealing 7 of metal plate housing 1, so that the better tightness of door 3 is moved, outside effective protection cutting fluid and processing bit Leakage.

The moving component 11 for load bearing element is also slidably connected referring to Fig. 3 and Fig. 5, on lathe bed 2, is also turned on lathe bed 2 It is dynamic to be provided with setting diagonally downward and perpendicular to the screw rod of the axis direction of main shaft 8 12, and it is fixedly installed in the upper of screw rod 12 The permanent-magnet servo motor 13 held and be used to that screw rod 12 to be driven to rotate, passes through between the output shaft and screw rod 12 of permanent-magnet servo motor 13 Shaft coupling 36 connects, and has been threadedly engaged nut 14 on screw rod 12, moving component 11 is fixedly installed in nut 14 and along screw rod 12 Length direction sliding.

Referring to Fig. 6, permanent-magnet servo motor 13 is coupled with three-phase power circuit 15 and short-circuit closed circuit 16, three phase mains electricity Switching switch is coupled between road 15 and short-circuit closed circuit 16, switching switch, which is electrically connected with, can be used for braking permanent-magnet servo motor 13 brake controller 17.

When permanent-magnet servo motor 13 is powered, the control switching of brake controller 17 switch connection three-phase power circuit 15, control System switching switch disconnects short-circuit closed circuit 16；When permanent-magnet servo motor 13 powers off, the control switching switch of brake controller 17 Disconnect three-phase power circuit 15, control switching switch connection short circuit closed circuit 16.

When permanent-magnet servo motor 13 powers off, the control switching switch of brake controller 17 disconnects three-phase power circuit 15, together When control switching switch connection short circuit closed circuit 16, permanent-magnet servo motor 13 is in short-circuit condition, permanent-magnet servo motor at this time Coil inside 13 forms a current loop, when coil cuts the permanent magnetism magnetic induction line inside permanent-magnet servo motor 13, coil by To an opposition, because this opposition makes the output shaft of permanent-magnet servo motor 13 and the rotation side of screw rod 12 To on the contrary, the output shaft of i.e. permanent-magnet servo motor 13 is remain stationary, will not rotate, moving component 11 at this time would not under It is sliding.The mode that the braking motion component 11 glides uses circuit control, to improve the braking efficiency of moving component 11, reacts Quickly, control flexibly, not will cause the case where brake postpones.

Referring to figs. 7 and 8, the numerically controlled lathe of the present embodiment further includes set on 1 outer wall of metal plate housing and being used to provide power Hydraulic station 18, it is solid on fuel tank 21 specifically, hydraulic station 18 includes hydraulic pump 19, driving motor 20, fuel tank 21 and direction valve 22 Dingan County is equipped with the first temperature sensor 23 for measuring 21 temperature of fuel tank and for reducing being back to temperature oily in fuel tank 21 Air cooled chiller 24, air cooled chiller 24 and electric cabinet 26 be electrically connected, and the first temperature sensor 23 is provided with standard value, When the actual temperature of fuel tank 21 is greater than standard value, the first temperature sensor 23 triggering electric cabinet 26 simultaneously starts electric cabinet 26 Air cooled chiller 24.

When the temperature of fuel tank 21 is greater than standard value, the first temperature sensor 23 triggering electric cabinet 26 simultaneously makes electric cabinet 26 Start air cooled chiller 24, cooling processing is carried out to the oil passed back into fuel tank 21, drives hydraulic pump by driving motor 20 Oil in 19 pairs of fuel tanks 21 recycles, and completes the temperature-fall period of oil, uses the temperature of the first temperature sensor 23 measurement fuel tank 21 It is strong to spend high sensitivity, accuracy, numerically controlled lathe safety in production can be effectively improved.

Referring to Fig. 8, specifically, being fixedly installed with temperature controlling box 25 on fuel tank 21, the first temperature sensor 23 is fixedly installed in On temperature controlling box 25.Temperature controlling box 25 can transmit the heat of fuel tank 21 in the first temperature sensor 23, while can protect the first temperature It is against damages to spend sensor 23.

Fig. 7 is reviewed, the numerically controlled lathe of the present embodiment further includes set on metal plate housing 1 and for controlling what numerically controlled lathe acted Electric cabinet 26, in conjunction with Fig. 8, specifically, electric cabinet 26 includes controller (not shown), chamber door 27, is opened in chamber door 27 Thermovent, the heat exchange inner cover 28 for being fixedly installed in 27 inner wall of chamber door, the heat exchange outer cover 29 for being fixedly installed in 27 outer wall of chamber door And multiple cooling fins 30 being set between heat exchange inner cover 28 and heat exchange outer cover 29, meanwhile, cooling fin 30 is located at thermovent Place, heat exchange inner cover 28 are fixedly installed with the first radiator fan 31, and heat exchange outer cover 29 is fixedly installed with the second radiator fan 32, First radiator fan 31 and the distribution of the second about 32 radiator fan, and multiple cooling fins 30 are located at the first radiator fan 31 and second Between radiator fan 32.

When controller needs to radiate, heat exchange inner cover 28 gathers together a large amount of heat of electric cabinet 26, passes through later Cooling fin 30 is shed heat in being located at extraneous heat exchange outer cover 29 in a manner of heat transmitting, reduces controller ambient enviroment Temperature is discharged so that the heat on controller is persistently transferred to electric cabinet 26 through cooling fin 30, the first radiator fan 31 and second The air-flow and external air flow that radiator fan 32 is conducive in electric cabinet 26 form convection current, thus realize the rapid cooling to controller, The purpose of lathe runnability is improved, in addition, heat exchange inner cover 28 and heat exchange outer cover 29 can protect cooling fin 30, reduces damage Bad situation occurs.

Referring to Fig. 9 and Figure 10, specifically, heat exchange outer cover 29 offers outer thermovent 33, heat exchange inner cover 28 is offered Interior thermovent 34.Outer thermovent 33 makes heat exchange outer cover 29 less to the shielded area of cooling fin 30, and interior thermovent 34 makes Heat exchange inner cover 28 is less to the shielded area of cooling fin 30, and more conducively the circulation of air, cooling fin 30 radiate, simultaneously Reduce production cost.

Specifically, electric cabinet 26 is equipped with second temperature sensor 35, the first radiator fan 31 and the second radiator fan 32 It is electrically connected with the controller, second temperature sensor 35 is provided with predetermined temperature value；When the actual temperature of electric cabinet 26 is greater than in advance When determining temperature value, 35 trigger controller of second temperature sensor makes controller start the first radiator fan 31 and the second radiation air Fan 32.

When the temperature of controller is below preset temperature value, second temperature sensor 35 does not need trigger controller and makes Controller starts the first radiator fan 31 and the second radiator fan 32, when the temperature of controller is in preset temperature value or in default temperature When more than angle value, 35 ability trigger controller of second temperature sensor makes controller starting the first radiator fan 31 and the second heat dissipation Fan 32 radiates, and saves electric energy.

Fig. 3 and Fig. 4 are reviewed, lathe bed 2 is equipped with 8 component of main shaft for driving parts turn, and the upper surface of lathe bed 2 is in incline Inclined-plane obliquely；8 component of main shaft includes being carried on master in frame side 38 and horizontally disposed by frame side 38 and rotation Axis 8, one end of main shaft 8 are equipped with the chuck 9 for retaining element, and the other end of main shaft 8 is equipped with main motor 10, logical by frame side 38 The bottom end that bolt is fixedly installed in 2 upper surface of lathe bed is crossed, and the bottom end of 2 upper surface of lathe bed is abutted integrally formed with abutting stupefied 39 Stupefied 39 and between frame side 38 clamping abut and have two abuttings blocks 40 being fixedly installed on lathe bed 2, abutting stupefied 39 offers two A mounting groove 41, mounting groove 41 are installed with the tensioned screw 42 being threadedly connected to by frame side 38.

It is installed on the bottom end of 2 upper surface of lathe bed by frame side 38, further reduced the weight for being installed on the main shaft 8 in frame side 38 The heart, and then the stability of main shaft 8 when rotated is higher, the machining accuracy of numerically controlled lathe is higher；Stupefied 39 are abutted, block 40 is abutted and draws The setting of tight screw 42, further increases the stability being installed on lathe bed 2 by frame side 38, since the upper surface of lathe bed 2 is in incline Inclined-plane setting, therefore be connected under the action of 8 gravity of self gravity and main shaft by frame side 38 and abut block 40, and abut stupefied 39 The power for holding abutting block 40 balances each other, and further increases the fixed stability for leaning on frame side 38 of bolt.

Referring to Fig. 3, specifically, lathe bed 2 slidably connects adjustment seat 43, main motor along the axis direction perpendicular to main shaft 8 10 are fixedly installed in adjustment seat 43, and the output shaft of main motor 10 is equipped with driving wheel (not shown), main shaft 8 be equipped with from Belt 44 is arranged on driving wheel (not shown), driving wheel and driven wheel；Adjustment seat 43 is equipped with along the axis perpendicular to main shaft 8 The strip-shaped hole (not shown) of direction arrangement, strip-shaped hole have been installed with for positioning adjustment seat 43 and being threadedly connected to lathe bed 2 Screw.

Facilitate worker that can take turns and relax when belt 44 according to the elasticity using duration adjustment belt 44 of belt 44 in this way When, screw is unclamped, adjustment seat 43 is slid into suitable position, then furbuckles to the direction far from main shaft 8；In addition, working as When needing replacing installation belt 44, screw is unclamped, adjustment seat 43 is slided to the direction close to main shaft 8, in driving wheel and driven It is covered between wheel and adjustment seat 43 is slid into suitable position to the direction far from main shaft 8 again after upper belt 44, last furbuckles, Worker is facilitated to replace belt 44.

Referring to Fig. 1 and Fig. 5, specifically, lathe bed 2 is equipped with the shield 45 blocked in screw rod 12, shield 45 is integral type Construction.The shield 45 of one-piece construction compares multi-section type shield 45, and avoidable processing bit is fallen on screw rod 12, influences The machining accuracy of numerically controlled lathe, conducive to the recycling of processing bit.(do not show in figure in addition, also Scrap-removing machine can be installed additional to numerically controlled lathe Out), the full-automatic recycling of processing bit, and the inclined-plane that the upper surface of lathe bed 2 is tilted down are realized, is conducive to processing bit and is discharged.

Referring to Fig. 5, specifically, lathe bed 2 includes the pedestal set on 2 bottom end integral type of lathe bed, the internal cavity of pedestal is equipped with In the reinforcing rib that groined type and triangle combine, the stability of numerically controlled lathe is improved.

Above-described embodiment is only the explanation to the utility model, is not limitations of the present invention, this field Technical staff can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but only It will be in the scope of the claims of the utility model all by the protection of Patent Law.

Claims (10)

1. a kind of Improvement type numerically controlled lathe, it is characterized in that: include metal plate housing (1), the lathe bed (2) being set in metal plate housing (1), It is slidably connected to lathe bed (2) and is used for the moving component (11) of load bearing element, is rotatably dispose in lathe bed (2) and is arranged diagonally downward Screw rod (12), the nut (14) that is threadedly engaged with screw rod (12) and be set to lathe bed (2) and for driving screw rod (12) to rotate Permanent-magnet servo motor (13), the moving component (11) is fixedly installed in nut (14) and sliding along the length direction of screw rod (12) Dynamic, the permanent-magnet servo motor (13) is coupled with three-phase power circuit (15) and short-circuit closed circuit (16), the three phase mains Switching switch is coupled between circuit (15) and the short-circuit closed circuit (16), the switching switch, which is electrically connected with, can be used for making The brake controller (17) of dynamic permanent-magnet servo motor (13)；

When permanent-magnet servo motor (13) are powered, brake controller (17) the control switching switch connection three-phase power circuit (15), control switching switch disconnects short-circuit closed circuit (16)；When permanent-magnet servo motor (13) power-off, the brake controller (17) control switching switch disconnects three-phase power circuit (15), control switching switch connection short circuit closed circuit (16)；

Further include the mouth that reloads for being set to metal plate housing (1) side, be slidably connected to metal plate housing (1) outer wall and reloads for blocking Mouthful mobile door (3), be set to metal plate housing (1) outer wall and the hydraulic station (18) that is used to provide power and be set to metal plate housing (1) and for controlling numerically controlled lathe the electric cabinet (26) acted.

2. a kind of Improvement type numerically controlled lathe according to claim 1, it is characterized in that: the hydraulic station (18) includes hydraulic pump (19), driving motor (20), fuel tank (21) and direction valve (22) are fixedly installed with for measuring fuel tank on the fuel tank (21) (21) the first temperature sensor (23) of temperature and for reducing the air cooled chiller for being back to temperature oily in fuel tank (21) (24), the air cooled chiller (24) and electric cabinet (26) electrical connection, first temperature sensor (23) are provided with standard Value, when the actual temperature of fuel tank (21) is greater than standard value, first temperature sensor (23) is triggered electric cabinet (26) and is made Obtain electric cabinet (26) starting air cooled chiller (24).

3. a kind of Improvement type numerically controlled lathe according to claim 2, it is characterized in that: being fixedly installed on the fuel tank (21) Temperature controlling box (25), first temperature sensor (23) are fixedly installed on temperature controlling box (25).

4. a kind of Improvement type numerically controlled lathe according to claim 1, it is characterized in that: the electric cabinet (26) includes control Device, the thermovent for being set to chamber door (27), the heat exchange inner cover (28) for being set to chamber door (27) inner wall, is set to chamber door at chamber door (27) (27) the heat exchange outer cover (29) of outer wall and the multiple heat dissipations being set between heat exchange inner cover (28) and heat exchange outer cover (29) Piece (30), the cooling fin (30) are located at thermovent, and the heat exchange inner cover (28) is equipped with the first radiator fan (31), described Heat exchange outer cover (29) is equipped with the second radiator fan (32), first radiator fan (31) and second radiator fan (32) Distribution up and down, multiple cooling fins (30) are between the first radiator fan (31) and the second radiator fan (32).

5. a kind of Improvement type numerically controlled lathe according to claim 4, it is characterized in that: the heat exchange outer cover (29) is equipped with outer Thermovent (33), the heat exchange inner cover (28) are equipped with interior thermovent (34).

6. a kind of Improvement type numerically controlled lathe according to claim 5, it is characterized in that: the electric cabinet (26) is equipped with the second temperature It spends sensor (35), first radiator fan (31) and second radiator fan (32) are electrically connected with the controller, described Second temperature sensor (35) is provided with predetermined temperature value；When the actual temperature of electric cabinet (26) is greater than predetermined temperature value, institute It states second temperature sensor (35) trigger controller and makes controller starting the first radiator fan (31) and the second radiator fan (32)。

7. a kind of Improvement type numerically controlled lathe according to claim 1, it is characterized in that: the outer wall of the metal plate housing (1) is set Have sliding rail (4), the movement door (3) is equipped with linear bearing (5), and linear bearing (5) sliding sleeve is set to sliding rail (4) outside Side.

8. a kind of Improvement type numerically controlled lathe according to claim 1, it is characterized in that: the lathe bed (2) is equipped with for driving Main shaft (8) component of dynamic parts turn, the inclined-plane that the upper surface of the lathe bed (2) is tilted down；Main shaft (8) the component packet It includes and is carried on the main shaft (8) on frame side (38) by frame side (38) and rotation, one end of the main shaft (8) is equipped with main motor (10), described to be bolted the bottom end for being installed on lathe bed (2) upper surface, and the bottom of lathe bed (2) upper surface by frame side (38) Integrally formed with abutting stupefied (39), the abutting stupefied (39) and between frame side (38), clamping abutting is fixedly installed in lathe bed at end (2) the abutting block (40) on, the abutting stupefied (39) are equipped with mounting groove (41), and the mounting groove (41), which has been installed with, to be threadedly connected to Tensioned screw (42) by frame side (38).

9. a kind of Improvement type numerically controlled lathe according to claim 8, it is characterized in that: the lathe bed (2) is along close and separate The direction of main shaft (8) slidably connects adjustment seat (43), and the main motor (10) is fixedly installed on adjustment seat (43), the master The output shaft of motor (10) is equipped with driving wheel, and the main shaft (8) is equipped with driven wheel, on the driving wheel and the driven wheel It is arranged with belt (44)；The adjustment seat (43) is equipped with the strip-shaped hole arranged along the glide direction of adjustment seat (43), the bar shaped Hole is installed with the screw for positioning adjustment seat (43) and being threadedly connected on lathe bed (2).

10. a kind of Improvement type numerically controlled lathe according to claim 1 blocks it is characterized in that: the lathe bed (2) is equipped in silk The shield (45) of bar (12), the shield (45) are integral type construction.