CN218051515U - CNC numerical control machine tool with ultrahigh-speed air-floating main shaft free of tool setting - Google Patents
CNC numerical control machine tool with ultrahigh-speed air-floating main shaft free of tool setting Download PDFInfo
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- CN218051515U CN218051515U CN202221524633.9U CN202221524633U CN218051515U CN 218051515 U CN218051515 U CN 218051515U CN 202221524633 U CN202221524633 U CN 202221524633U CN 218051515 U CN218051515 U CN 218051515U
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Abstract
A CNC numerical control machine tool with an ultra-high speed air-floating main shaft without tool setting comprises a machine frame, wherein the machine frame is provided with a machining table surface, a tool magazine and a machining part, the machining part comprises a main shaft fixing seat, a main shaft is vertically arranged on the main shaft fixing seat, the main shaft is an ultra-high speed air-floating main shaft and is driven by a Z-direction driving mechanism, a tool grabbing structure used for grabbing tools is arranged in the main shaft, a plurality of tools are stored in the tool magazine, each tool is provided with a tool and a positioning clamp, the positioning clamps are coaxially positioned on the tools, and the distances from a positioning surface of each positioning clamp of each tool to a tool tip are equal; after the cutter grabbing structure grabs the cutter, the positioning surface of the positioning clamp is tightly attached to the reference surface of the main shaft. The utility model has the advantages of need not the tool setting behind the tool changing.
Description
Technical Field
The utility model relates to a CNC digit control machine tool of hypervelocity air supporting main shaft need not tool setting.
Background
CNC numerical control machine tool is divided into three main shafts of low speed, high speed and super high speed according to the rotating speed of the main shaft, wherein the super high speed machine tool is mainly used for high mirror surface processing of workpieces, so the CNC numerical control machine tool is also called as a high light machine in the industry.
At present, most high-speed optical machines adopt manual tool changing, and have the problems of low tool changing speed and poor precision; the existing method for replacing a tool of a low-speed machine is simulated, the tool is automatically replaced on a high-speed machine, namely a tool holder with an inclined plane positioning is used for clamping the tool, and a main shaft of the high-speed machine grabs the tool holder with the inclined plane positioning to replace the tool, however, the tool replacing mode has the defects that the tool holder is large in size and heavy in weight, the accumulated common differential balance is not good, and the tool replacing method is difficult to apply to the high-speed machine with more than 8 thousands of turns; the other tool changing mode is that a plurality of highlight main shafts (generally three) are arranged on one machine, different tools are respectively arranged on a plurality of main shafts, and the same workpiece is sequentially processed to replace the tool changing function.
In order to solve the above problems, chinese patent document CN104128831A discloses an automatic tool changing device and method for an ultra-high speed motorized spindle, wherein the automatic tool changing method comprises the steps of: the electric spindle moves to the front end of the caliper and pushes the cutter into the caliper for clamping; the electric spindle is separated from the cutter and moves to a cutter changing checker for carrying out cutter changing logic check; after the tool changing is checked successfully, the electric spindle moves to the upper end of the next caliper, the tool is arranged in the spring clamp tool chuck, and the spring clamp tool chuck clamps the tool on the electric spindle; and the electric spindle and the clamped cutter thereof transversely move out of the calipers to measure the length of the cutter, so that cutter changing is completed. However, the tool changing device and the tool changing method have a new problem, namely, the tool needs to be adjusted after each tool changing, the tool is required to be adjusted in time, the machining efficiency of the product is influenced, and especially for the product which has a complex structure and needs to be frequently changed, the machining efficiency of the product is greatly reduced; in addition, frequent tool setting also has an adverse effect on the tip of the tool.
In order to solve the problem of frequent tool setting, chinese patent document CN113103045A discloses a tool magazine, which includes a rack and at least two tools, the rack is provided with at least two placing positions, and the bottom of the placing positions is provided with a positioning portion; the cutter is placed in the placing position, and the cutter point of the cutter is contacted with the positioning part. The processing equipment of this tool magazine is used, can remove the tool setting operation from when changing the cutter, saves the tool setting time, simplifies the course of working, effectively improves production efficiency. However, in the machining equipment using the special tool magazine without tool setting, when the tool is grasped, a certain pressure is applied to the tool shank, so that the tool tip applies pressure to the positioning part, and over time, damage can be generated between the tool tip and the positioning part, and the Z-direction precision of the tool is influenced.
How to realize the automatic tool changing of the ultra-high-speed spindle, which can realize automatic tool changing without tool setting and has high Z-direction precision, is a technical problem to be solved urgently by technical personnel in the same industry.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a can realize not using the tool setting, and the high hypervelocity air supporting main shaft of tool changing precision does not use the CNC digit control machine tool of tool setting.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the automatic tool changing method of the CNC numerical control machine tool with the ultra-high-speed air-bearing spindle comprises the following steps of:
s1, sending a tool changing instruction;
s2, detecting whether a cutter exists on the main shaft or not by a sensor, if so, entering the step S3, and if not, entering the step S4;
s3, performing a cutter returning action;
s4, performing knife grabbing action and grabbing the knife according to the following steps;
s5, moving a main shaft above the tool holder seat, wherein the main shaft is aligned with a tool pre-installed in the tool holder seat, the tool is provided with a tool and a positioning clamp, the positioning clamp is coaxially positioned on the tool, and the distance from a positioning surface of the positioning clamp of each tool to a tool tip is equal;
s6, the main shaft is driven to move downwards by the Z-direction driving mechanism, so that the reference surface of the main shaft is contacted with the positioning surface of the positioning clamp of the cutter, meanwhile, a main shaft cylinder arranged in the main shaft moves downwards under the action of the main shaft cylinder, a lock nozzle arranged at the lower end of the driving rod is opened, the upper part of the cutter extends into the lock nozzle, a main shaft disc spring arranged at the upper part of the driving rod is compressed, a cutter holder seat elastic body in the cutter holder seat is compressed under the action of the downward force of the cutter, and the reference surface of the main shaft is tightly contacted with the positioning surface of the positioning clamp under the action of the reaction force of the cutter holder seat elastic body;
s7, the pressure of a main shaft air cylinder is relieved, the main shaft disc spring stretches to drive the driving rod to ascend, the lock nozzle ascends along with the driving rod, the lock nozzle retracts inwards to clamp the upper part of the cutter, and the reference surface of the main shaft and the positioning surface of the positioning clamp are kept in a tight contact state;
and S8, driving the main shaft and the grabbed cutter to synchronously ascend by the Z-direction driving device, and enabling the machine table to enter a processing state.
As an improvement, the utility model discloses still include S9 step, repeat S2-S8 step to realize the circulation tool changing function in the course of working.
As an improvement of the present invention, the step S3 includes the following steps:
s31, moving the main shaft above the tool holder seat to enable the main shaft to be aligned with the vacant position of the tool holder seat;
s32, the Z-direction driving mechanism drives the main shaft to move downwards, the cutter on the main shaft moves downwards to a set position, the cutter holder seat is made to hold the positioning clamp on the cutter, and the main shaft stops moving downwards; inflating a main shaft cylinder in the main shaft, pressing down a belleville spring, moving down the driving rod, opening a lock nozzle, and loosening a cutter by the lock nozzle;
and S33, moving the main shaft upwards, and completing tool returning after the main shaft is separated from the tool.
As right the utility model discloses an improvement, S5 step still includes the cutter equipment step:
s51, placing the knife and the positioning clamp in a special jig, wherein the knife handle penetrates through a central hole of the positioning clamp, so that a positioning surface of the positioning clamp is tightly attached to an upper positioning surface of the special jig, a knife tip of the knife abuts against a lower positioning surface of the special jig, and the distances between the positioning surfaces of the positioning clamps of all the knives and the knife tip are guaranteed to be the same fixed value;
and S52, fixing the positioning clamp on the cutter handle to form the cutter.
The utility model also provides a CNC digit control machine tool of hypervelocity air supporting main shaft need not the tool setting can use foretell automatic tool changing method to carry out the tool changing.
The utility model also provides a CNC digit control machine tool of hypervelocity air supporting main shaft need not tool setting, including the frame be equipped with processing mesa, tool magazine and processing portion in the frame, processing portion includes the main shaft fixing base, be equipped with the main shaft on the main shaft fixing base perpendicularly, the main shaft is hypervelocity air supporting main shaft, the main shaft is driven by Z to actuating mechanism, be equipped with in the main shaft and be used for snatching the sword structure of grabbing of cutter, there are a plurality of cutters in the tool magazine memory, each cutter has sword and locating clip, the locating clip is coaxial location on the sword, and the locating surface of the locating clip of each cutter equals to the distance of knife tip; after the cutter grabbing structure grabs the cutter, the positioning surface of the positioning clamp is tightly attached to the reference surface of the main shaft.
As right the utility model discloses an it is right to improve, grab the sword structure including establishing the main shaft cylinder in the main shaft, with the actuating lever that the output shaft of main shaft cylinder is connected the upper end of actuating lever is equipped with receives output shaft driven disc spring the lower extreme of actuating lever is equipped with the lock mouth.
As right the utility model discloses an improvement, the tool magazine is equipped with a plurality of tool holder seat, and every tool holder seat has the clamping part that is used for embracing the locating clip of cutter, and is located the tool holder seat elastomer that is used for upwards supporting the cutter below the clamping part.
As an improvement to the present invention, said clamping portion is an elastic clamping portion.
As an improvement, the positioning clamp is coaxially fixed and arranged on the handle of the knife through a fastener or a thermal shrinkage mode.
The core of the utility model lies in that all the cutters are designed to comprise two parts of a positioning clamp and a cutter, the positioning clamp is positioned on the cutters, the distance between the positioning surface of the positioning clamp of all the cutters and the cutter point is equal, the cutters are placed on the cutter holder of the tool magazine, and the cutters are pushed up by the elastomer of the cutter holder in the cutter holder; when the main shaft grabs a cutter, the reference surface of the main shaft is tightly attached to the positioning surface of the positioning clamp, so that the cutter point is the same in height in the Z direction after being grabbed no matter which cutter is grabbed, and the cutter point is suspended and is not connected with any object during cutter changing, and therefore the purposes of not needing cutter setting and accurate Z-direction height precision of the cutter after cutter changing can be achieved.
Drawings
Fig. 1 is a schematic block diagram of an embodiment of the method of the present invention.
Fig. 2 is a detailed structure diagram of step S3 in fig. 1.
Fig. 3 is a detailed structural diagram of step S5 in fig. 1.
Fig. 4 is a schematic structural diagram of the knife of the present invention.
Fig. 5 is a schematic structural view in tool changing of the present invention.
Fig. 6 is a schematic diagram of the tool changing completion structure of the present invention.
Fig. 7 is a schematic structural view of the main shaft moving upwards after the tool changing of the utility model is completed.
Fig. 8 is a schematic plan view of the machine tool of the present invention.
Fig. 9 is a schematic structural diagram of a cutting tool according to the present invention.
Fig. 10 is a structural view of another embodiment of the holder according to the present invention.
Fig. 11 is a schematic top view of the structure of fig. 10.
Fig. 12 is a schematic view of the structure of fig. 10 when used for knife return.
Fig. 13 is a schematic view of the structure of fig. 10 when used for grasping a knife.
Fig. 14 is a schematic plan view of an embodiment of the positioning clip of the present invention.
Fig. 15 is a top plan view of the structure of fig. 14.
Fig. 16 is a schematic perspective view of fig. 14.
Fig. 17 is a schematic top view of the positioning protective sleeve of the present invention.
Fig. 18 is a perspective view of fig. 17.
Fig. 19 is a schematic plan view of the positioning protective sleeve after being sleeved on the positioning clip.
Fig. 20 is a top plan view of the structure of fig. 19.
Fig. 21 isbase:Sub>A schematic sectional viewbase:Sub>A-base:Sub>A of fig. 20.
In the figure:
a frame 1;
processing the table top 2;
a tool magazine 3;
a holder seat 31;
a clamping portion 311;
a holder base elastic body 312;
a processing section 4;
a spindle holder 41;
a main shaft 411;
a reference surface 4111;
a spindle fixing clamp 4112;
a fastening screw 4113;
a Z-direction drive mechanism 412;
a cutter 413;
a knife 4131;
A knife handle 41312;
a positioning clip 4132;
a positioning face 41321;
a clamped portion 41322;
a screw 41323;
the positioning clamp upper barrel 41324;
an upper barrel face 413241;
locating clip middle hole 413242
A positioning clamp lower barrel 41325;
a lower barrel face 413251;
an upper barrel opening groove 41326;
a lower barrel open slot 41327;
a locating clip central aperture 41328;
a grasping blade structure 414;
a spindle cylinder 4141;
an output shaft 4142;
a drive lever 4143;
a belleville spring 4144;
the lock nozzle 4145.
Detailed Description
The technical solutions in the embodiments of the present invention will be described below clearly and completely, and it should be apparent that the described embodiments are only some embodiments of the present invention, and not all embodiments.
Referring to fig. 1-3, fig. 1-3 disclose an automatic tool changing method for an ultra-high speed air-bearing spindle CNC machine tool, which comprises the following steps:
s1, sending a tool changing instruction by a numerical control device of a machine tool;
s2, detecting whether a cutter exists on the main shaft by a sensor on the machine tool, if so, entering the step S3, and if not, entering the step S4; in this embodiment, the sensor is an infrared sensor, the infrared sensor includes an infrared transmitting tube and an infrared receiving tube, the infrared transmitting tube and the infrared receiving tube are arranged oppositely, when the infrared rays transmitted by the infrared transmitting tube can be received by the infrared receiving tube, it indicates that no tool is located at the lower end of the spindle, otherwise, it indicates that a tool is located at the lower end of the spindle; of course, the sensor may also use magnetic induction switches or the like;
s3, performing a cutter returning action; with reference to figures 2 and 4 of the drawings,
s31, moving a main shaft above a tool holder seat by matching a main shaft X-direction moving mechanism (not shown) with a Y-direction moving mechanism (not shown) of the tool magazine (namely, a main shaft fixing seat moves up and down under the driving of a Z-direction driving mechanism, and the main shaft fixing seat is fixed on an X-axis fixing seat and moves horizontally), so that the main shaft is aligned with a vacant position of the tool holder seat;
s32, the Z-direction driving mechanism drives the spindle to move downwards, the cutter on the spindle moves downwards to a set position, and the spindle stops moving downwards, so that the cutter holder seat embraces a positioning clamp on the cutter (specifically, the lower part of the positioning clamp is provided with a clamped part, see figure 10; the upper part of the cutter holder seat is provided with a clamping part which is provided with a certain elastic embracing head, and after the clamped part extends to the embracing clamp, the embracing clamp embraces the clamped part by utilizing the elasticity of the clamping part; inflating a main shaft cylinder in the main shaft, pressing down a belleville spring, moving down the driving rod, opening a lock nozzle, and loosening a cutter by the lock nozzle;
and S33, moving the main shaft upwards, and separating the main shaft from the cutter to finish cutter returning.
S4, performing knife grabbing action, and grabbing the knife according to the following steps, referring to the figures 5-7;
s5, moving a main shaft to the position above a tool holder seat through the matching of a main shaft X-direction moving mechanism (not shown) and a Y-direction moving mechanism (not shown) of a tool magazine, wherein the main shaft is aligned with tools which are arranged in the tool holder seat in advance, each tool is provided with a tool and a positioning clamp, the positioning clamps are coaxially positioned on the tools, and the distances from the positioning surface of each positioning clamp of each tool on the tool holder seat to a tool tip are equal;
s6, the Z-direction driving mechanism drives the spindle to move downwards to enable the reference surface of the spindle to be in contact with the positioning surface of the positioning clamp of the cutter, meanwhile, a spindle cylinder arranged in the spindle is inflated to enable the driving rod to move downwards to enable a lock nozzle arranged at the lower end of the driving rod to be opened, the upper portion of the cutter extends into the lock nozzle, a spindle disc spring arranged at the upper portion of the driving rod is compressed, a cutter holder seat elastic body in the cutter holder seat is compressed under the action of the downward force of the cutter, and the reference surface of the spindle is in close contact with the positioning surface of the positioning clamp under the action of the reaction force of the cutter holder seat elastic body;
s7, releasing pressure by a spindle cylinder, extending a spindle disc spring to drive a driving rod to ascend, ascending a lock nozzle along with the driving rod, contracting the lock nozzle to clamp the upper part of a cutter, and keeping a reference surface of a spindle in a close contact state with a positioning surface of a positioning clamp;
and S8, driving the main shaft and the grabbed cutter to synchronously ascend by the Z-direction driving device, and enabling the machine table to enter a processing state.
The utility model discloses a core lies in, when the main shaft snatchs the cutter, makes the reference surface of main shaft hug closely together with the locating surface of locating clip, because the locating surface of every cutter is the same definite value with the knife tip, and the knife tip is unsettled during the tool changing, has just so guaranteed no matter which cutter, the knife tip is the same to the height of direction at Z after snatching, can reach neither need the tool setting, cutter Z after the tool changing again is to the accurate purpose of precision.
Preferably, the utility model discloses still include S9 step, repeat S2-S8 step to realize the circulation tool changing function in the course of working.
Preferably, the step S5 further includes a cutter assembling step: see fig. 3;
s51, placing the knife and the positioning clamp in a special jig, wherein the knife handle penetrates through a central hole of the positioning clamp, so that a positioning surface of the positioning clamp is tightly attached to an upper positioning surface of the special jig, a knife tip of the knife abuts against a lower positioning surface of the special jig, and the distances between the positioning surfaces of the positioning clamps of all the knives and the knife tip are guaranteed to be the same fixed value;
and S52, fixing the positioning clamp on the cutter handle to form the cutter.
The utility model discloses in, the cutter can be at the outside equipment in advance:
the special jig is used outside the machine table to realize the assembly of the positioning clamps and the knives, and the distances between the positioning surfaces of the positioning clamps of all the knives and the knife points of the knives are ensured to be the same preset fixed value, and the fixed value is preferably within 0.005 mm;
as shown in fig. 10, the tool is configured by providing a first reference surface F and a second reference surface G in the special jig, attaching the positioning surface of the positioning holder to the first reference surface F, attaching the cutting edge of the knife to the second reference surface G, and then fixing the positioning holder to the knife.
The retention clip and knife may be secured by, but not limited to, mechanical means, such as locking with screws 41323, or heat shrinking.
If the close fit of the knife and the positioning clamp is realized by a thermal shrinkage mode, the positioning clamp is heated by a high-frequency heater, the inner diameter of the fit of the positioning clamp and the knife handle is enlarged, the knife handle can smoothly penetrate into the positioning clamp, the knife tip is tightly attached to the special jig and the second reference surface G, the positioning surface of the positioning clamp is tightly attached to the first reference surface F, the positioning clamp is cooled, the inner diameter of the positioning clamp is contracted, and the positioning clamp tightly holds the knife handle.
The utility model also provides a but CNC digit control machine tool of hypervelocity air supporting main shaft automatic tool changing can use foretell automatic tool changing method to carry out the tool changing.
Referring to fig. 8 and 9, fig. 8 and 9 disclose a CNC numerical control machine tool with an ultra-high speed air-float spindle capable of automatically exchanging tools, which includes a frame 1, a processing table 2 is disposed on the frame 1, a tool magazine 3 capable of extending and retracting along the Y direction is disposed above the processing table 2, a processing portion 4 is disposed above the tool magazine 3, the processing portion 4 includes a spindle fixing seat 41, a spindle 411 is vertically disposed on the spindle fixing seat 41, the spindle 411 is driven by a Z-direction driving mechanism 412 (in the present embodiment, the Z-direction driving mechanism 412 includes a servo motor and a corresponding screw nut structure thereof, the Z-direction driving mechanism 412 drives the spindle fixing seat 41 to move up and down, the spindle fixing seat 41 thereby drives the spindle 411 to move up and down, meanwhile, the spindle fixing seat 41 is fixed on an X-axis fixing seat (not shown) and can move horizontally), tool catching structures 414 for catching tools 413 are respectively disposed in the spindle 411, a plurality of tools 413 are stored in the tool magazine 3, each tool 413 has a tool 4131 and a positioning clamp 4132 (the lower portion of the positioning clamp 4132 is disposed below the positioning clamp 4132, and the distance between the tool holder 4132 and the tool holder 4132 is equal to the tool holder 4132; after the tool grabbing structure grabs the tool 413, the positioning surface 41321 of the positioning clamp 4132 is tightly attached to the reference surface 4111 of the spindle 411.
Preferably, the knife grasping structure 414 (see fig. 4-7) includes a spindle cylinder 4141 arranged in the spindle 411, a driving rod 4143 connected with an output shaft 4142 of the spindle cylinder 4141, a belleville spring 4144 driven by the output shaft 4142 arranged at the upper end of the driving rod 4143, and a locking nozzle 4145 arranged at the lower end of the driving rod 4143.
Preferably, the tool magazine 3 is provided with a plurality of tool holder seats 31, each tool holder seat 31 has a clamping portion 311 for holding a positioning clamp 4132 of the tool 413, and a tool holder seat elastic body 312 located below the clamping portion 311 for pushing the tool 413 upward. In the present invention, the clamping portion 311 can be an elastic clamping portion, a pneumatic clamping portion, an electric clamping portion, or a magnetic clamping portion; the elastic body 312 may be a spring, an elastic rubber, or an elastic air cushion.
Referring to fig. 10, in the present invention, the tool holder seat 31 includes a clamping portion 311 for holding a positioning clip 4132 of a tool 413, and a tool holder seat elastic body 312 for supporting the tool 413 upward, in this embodiment, the clamping portion 311 includes a horizontal clamping surface (3111) and a sliding member (3112) connected perpendicular to the horizontal clamping surface (3111), the horizontal clamping surface (3111) and the sliding member (3112) form an L shape, an elastic bayonet 3113 is disposed on a side of the horizontal clamping surface (3111) away from the sliding member (3112) (see fig. 11), and the elastic bayonet 3113 is used for carrying the tool 413.
When the knife is to be returned, as shown in fig. 12, the spindle moves the knife 413 to the vicinity of the holding portion 311, so that the held portion 41322 of the knife 413 is aligned with the elastic bayonet 3113, and the knife 413 laterally catches the held portion 41322 in the elastic bayonet 3113 in the direction of the first arrow 415, thereby completing the returning.
When the tool is to be grasped, as shown in fig. 13, the lock nozzle 4145 of the spindle engages the tool shank at the upper part of the positioning clamp, the spindle descends slightly, the positioning surface 41321 of the positioning clamp 4132 is tightly attached to the reference surface 4111 of the spindle 411, the lock nozzle 4145 locks the tool shank at the upper part of the positioning clamp, and the spindle is translated to take out the tool 413 from the side in the direction of the second arrow 416, so that the tool grasping is completed.
Referring to fig. 14-16, fig. 14-16 illustrate another positioning clip of the present invention. As can be seen, the positioning clamp 4132 comprises an upper positioning clamp barrel 41324 and a lower positioning clamp barrel 41325, the upper positioning clamp barrel 41324 and the lower positioning clamp barrel 41325 are coaxially arranged up and down, wherein the outer diameter of the lower positioning clamp barrel 41325 is larger than that of the upper positioning clamp barrel 41324, and a positioning surface 41321 is formed at the intersection of the upper positioning clamp barrel 41324 and the lower positioning clamp barrel 41325; the centers of the positioning clamp upper tube 41324 and the positioning clamp lower tube 41325 are provided with positioning clamp middle holes 41328 which penetrate through the positioning clamp upper tube 41324 and the positioning clamp lower tube 41325, and the tube walls of the positioning clamp upper tube 41324 and the positioning clamp lower tube 41325 are alternately provided with at least three upper tube open grooves 41326 and at least three lower tube open grooves 41327; the upper barrel opening groove 41326 extends from the upper barrel surface 413241 of the positioning clamp upper barrel 41324 to the vicinity of the lower barrel surface 413251 of the positioning clamp lower barrel 41325, and divides the positioning clamp upper barrel 41324 and the positioning clamp lower barrel 41325 into at least three upper elastic sheets; the lower cylinder opening groove 41327 extends from the lower cylinder face 413251 of the positioning clamp lower cylinder 41325 to the vicinity of the upper cylinder face 413241 of the positioning clamp upper cylinder 41324, and divides the positioning clamp lower cylinder 41325 and the positioning clamp upper cylinder 41324 into at least three lower elastic sheets.
An inverted matching hole 413242 is arranged on the positioning clamp upper barrel 41324 near the positioning surface 41321 and is used for matching with a positioning protective sleeve 4133 on the spindle.
With reference to fig. 17-21, the present invention further includes a positioning protection sleeve 4133, the positioning protection sleeve 4133 includes a bottom plate 41331, the circumference of the bottom plate 41331 extends to one side to form a cylinder 41332, a central hole 41333 is provided in the center of the bottom plate 41331, the diameter of the central hole 41333 is equal to the outer diameter of the positioning clamp upper cylinder 41324, at least two lugs 41334 protruding into the central hole 41333 are uniformly provided on the inner wall of the central hole 41333 (in the present embodiment, three lugs 41334 are provided, and of course, the structure may be designed to be larger than three lugs 41334), and an arc-shaped groove 41335 with one end communicating with the central hole 41333 is respectively provided with respect to the lugs 41334 to form an elastic arm 41336; the positioning protective sleeve 4133 is sleeved on the positioning clamp upper barrel 41324, and the lug 41334 is clamped in the inverted matching hole 413242, so that the positioning protective sleeve and the positioning clamp upper barrel are fixedly connected.
When the lugs 41334 are caught in the back-engagement holes 413242, the positioning surface 41321 may be the inner surface 413311 of the bottom plate 41331 or the upper surface 413312 of the cylinder 41332.
In the present invention, the positioning clip upper tube 41324 and the positioning clip lower tube 41325 are an integral structure. When the main shaft grabs the cutter 413 through the cutter grabbing structure 414, the cutter grabbing structure 414 directly grabs the upper cylinder of the positioning clamp upper cylinder 41324 and indirectly grabs the cutter 4131.
Since the knife grasping structure 414 indirectly grasps the knife 4131 and does not directly grasp the shank of the knife 4131, there is no damage to the knife 4131 and the useful life of the knife 4131 can be extended.
The spindle 411 in the present invention is an ultra high speed air-float spindle.
The numerical control device comprises a hardware printed circuit board, a CRT display, a key box, a paper tape reader and the like and corresponding software, and is used for inputting a digital part program, finishing storage of input information, transformation of data, interpolation operation and realizing various control functions.
The utility model discloses in also auxiliary device, it is the utility model provides a some necessary accessories for guarantee the operation of digit control machine tool, like cooling, chip removal, lubrication, illumination, monitoring etc. The numerical control rotary table comprises a hydraulic and pneumatic device, a chip removal device, an exchange workbench, a numerical control rotary table and a numerical control dividing head, and further comprises a cutter, a monitoring and detecting device and the like.
The utility model also has programming and other accessory equipment, and can be used for programming, storing and the like of parts outside the machine.
The utility model discloses a method is suitable for and uses on the lathe of main shaft rotational speed per minute more than or equal to 3 ten thousand revolutions, and to the lathe, its main shaft rotational speed can reach the rotational speed of minute more than or equal to 3 ten thousand revolutions.
The above, only be the embodiment of the preferred of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, which are designed to be replaced or changed equally, all should be covered within the protection scope of the present invention.
Claims (5)
1. The CNC numerical control machine tool is characterized in that a plurality of cutters (413) are stored in the tool magazine (3), each cutter (413) is provided with a cutter (4131) and a positioning clamp (4132), the positioning clamp (4132) is coaxially positioned on the cutter (4131), and the distance from a positioning surface (41321) of the positioning clamp (4132) of each cutter (413) to a cutter point (41311) is equal; after the cutter grabbing structure grabs the cutter (413), a positioning surface (41321) of the positioning clamp (4132) is tightly attached to a reference surface (4111) of the spindle (411).
2. The CNC lathe without tool setting for ultra-high speed air-bearing spindle of claim 1, wherein the tool grabbing structure (414) comprises a spindle cylinder (4141) arranged inside the spindle (411), a driving rod (4143) connected with an output shaft (4142) of the spindle cylinder (4141), a belleville spring (4144) driven by the output shaft (4142) is arranged at the upper end of the driving rod (4143), and a locking nozzle (4145) is arranged at the lower end of the driving rod (4143).
3. The CNC numerical control machine tool of ultra-high speed air-floating main shaft without tool setting according to claim 1 or 2, characterized in that the tool magazine (3) is provided with a plurality of tool holders (31), each tool holder (31) is provided with a clamping part (311) for holding a positioning clamp (4132) of a tool (413), and a tool holder elastic body (312) located below the clamping part (311) for pushing the tool (413) upwards.
4. The CNC numerical control machine tool without tool setting for ultra high speed air-bearing spindle according to claim 3, characterized in that the clamping part (311) is an elastic clamping part.
5. The ultra-high speed CNC numerical control machine tool without tool setting of the air spindle as claimed in claim 1 or 2, characterized in that the locating clip (4132) is coaxially fixed and arranged on the shank of the knife (4131) by a fastener or a heat shrinkage mode.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221524633.9U CN218051515U (en) | 2022-06-18 | 2022-06-18 | CNC numerical control machine tool with ultrahigh-speed air-floating main shaft free of tool setting |
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|---|---|---|---|
| CN202221524633.9U CN218051515U (en) | 2022-06-18 | 2022-06-18 | CNC numerical control machine tool with ultrahigh-speed air-floating main shaft free of tool setting |
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| CN218051515U true CN218051515U (en) | 2022-12-16 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116423271A (en) * | 2023-02-20 | 2023-07-14 | 广东科杰技术股份有限公司 | Spare cutter type disc magazine equipment |
-
2022
- 2022-06-18 CN CN202221524633.9U patent/CN218051515U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116423271A (en) * | 2023-02-20 | 2023-07-14 | 广东科杰技术股份有限公司 | Spare cutter type disc magazine equipment |
| CN116423271B (en) * | 2023-02-20 | 2023-10-17 | 广东科杰技术股份有限公司 | Spare cutter type disc magazine equipment |
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