CN101823214B

CN101823214B - Conveying system of digital control processing machine

Info

Publication number: CN101823214B
Application number: CN2009101744304A
Authority: CN
Inventors: 全圭寅
Original assignee: Doosan Infracore Co Ltd
Current assignee: Dean Machine Tool Co ltd
Priority date: 2008-11-11
Filing date: 2009-11-09
Publication date: 2012-08-15
Anticipated expiration: 2029-11-09
Also published as: KR101453566B1; CN101823214A; KR20100052790A

Abstract

The invention relates to a conveying system of a digital control large-scale processing machine, which comprises a ball screw (12) which is arranged on a frame (15) and can rotate driven by a servo motor (11); a nut block (21) which can combine a nut parts combined with the ball screw (12) in the screw thread connection mode with a conveying body (3) to enable the conveying body (3) to move along the straight line; a shaft support (20) which is arranged at one side of the frame (15) and is provided with first and second idle rotation rollers (92a, 92b) which can support the ball screw (12) at the upper side; a descend drive mechanism which enable the shaft support (20) to descend for preventing the collision of the nut block (21) and the shaft support (20), when the nut block (21) passes through the shaft support (20).

Description

The induction system of digital control processing machine

Technical field

The present invention relates to the induction system (Transfer subsection of numerical controlmachine tools) of digital control processing machine; More particularly; Relating to nut block carries out screw thread with ball-screw through nut part and combines; And utilize the rotation of servo motor control ball-screw, thereby make the induction system of the digital control processing machine that nut block moves to precision positions.

Background technology

As shown in Figure 1, digital control processing machine 1 can be provided with induction system 2 in a side of main body in general, on this induction system 2, places and carries body 3.

Above-mentioned induction system 2 as an example comprise the servo motor 11 that carried out numerical control, through servo motor 11 the driving force rotation ball-screw 12 and link with ball-screw 12 and nut block 14 that straight line moves.

Above-mentioned nut block 14 is fixed on the above-mentioned conveying body 3, and straight line moves by the driving of servo motor 11 thereby carry body 3.

Because the maximization of above-mentioned digital control processing machine 1 carries 3 distances that will carry of body to be elongated, induction system 2 is elongated thus, so above-mentioned ball-screw 12 designs longlyer.

As stated, the length of ball-screw 12 designs longlyer because of the maximization of lathe, but has the slow on the contrary problem of transporting velocity of induction system 2.

Problem with reference to the above-mentioned transporting velocity of accompanying drawing 2 explanations.

Along with the length of ball-screw 12 is elongated; Produce the eigentone step-down of sagging and ball-screw because of deadweight; Even if thereby also produce covibration at lower rotating speed, limit the maximum speed of ball-screw thus, so can't obtain lathe or the desired transporting velocity of processing machine.

As an example; Diameter is 100mm, and the distance between the fixed part of two ends is 10, and the ball-screw 12 of 000mm is under the situation of the common condition that is provided with (fixing-fixed support); Permissible revolution is for roughly about 200rpm; Very slow, because of permissible revolution is so low, the result carries the transporting velocity of body 3 problem slowly that becomes.

Summary of the invention

Therefore; The purpose of technical task to be solved by this invention is; A kind of the sagging of ball-screw that in the induction system of digital control processing machine, prevent is provided, improves the maximum permissible revolution of ball-screw thus, the result can improve the induction system of digital control processing machine of the transporting velocity of induction system.

Technical task to be solved by this invention does not receive the restriction of above mentioned technical task, and person of ordinary skill in the field of the present invention can be expressly understood NM other technical task through following record.

In order to realize above-mentioned problem, the induction system of the digital control processing machine of first, second embodiment according to the present invention comprises: the ball-screw that is arranged on the framework and rotates through the driving of servo motor; The nut block that combines with above-mentioned ball-screw screw thread and combine and the workbench straight line is moved with workbench; Be arranged on a side of said frame and a plurality of first, second idle running rollers be set, and above-mentioned a plurality of first, second idle running roller supports the bracing strut of above-mentioned ball-screw at upside; And when above-mentioned nut block is passed through above-mentioned bracing strut, above-mentioned bracing strut is descended in case the decline driving mechanism of above-mentioned nut block and the collision of above-mentioned bracing strut.

And above-mentioned bracing strut can be provided with a plurality of.

In addition, above-mentioned bracing strut can comprise: the cylinder body that is arranged on a side of said frame; Be configured in the lifting shaft that the central authorities of above-mentioned cylinder body go up and down; Be arranged on the inside of above-mentioned cylinder body and along pushing to the compression spring that the direction of stating lifting shaft applies restoring force on the person; Thereby and be configured in the upper end of above-mentioned lifting shaft and support above-mentioned ball-screw to contact with above-mentioned ball-screw and rotate a plurality of first, second idle running rollers.

And, can further comprise pilot pin in a side of above-mentioned lifting shaft, this pilot pin connects piston 61 and is arranged on a side of above-mentioned cylinder body to the direction consistent with the direction of motion of lifting shaft.

In addition, above-mentioned lifting shaft may further include by pivot to the left and right direction tiltably be arranged on the upper end and be provided with above-mentioned a plurality of first, second idle running rollers support.

And; May further include the pressing mechanism of above-mentioned lifting shaft to the direction pressurization of rising; With regard to above-mentioned pressing mechanism; Piston with above-mentioned lifting shaft on above-mentioned cylinder body is that benchmark forms first, second mouthful respectively at upside and downside, gives air pressure to above-mentioned second confession that is formed at downside, and above-mentioned lifting shaft is pressurizeed to the direction that rises.

In addition; Above-mentioned decline driving mechanism can comprise: a side that is arranged on above-mentioned nut block or above-mentioned workbench; And the formation of the both sides between horizontal zone cam rake, and form first, second cam guider also longer between above-mentioned horizontal zone than the length of above-mentioned nut block; In cylinder body by compression lifting shaft that spring rebounded; And the both sides, upper end that are arranged on above-mentioned lifting shaft; And a plurality of first, second cam bawls that contact with above-mentioned a plurality of first, second cam guiders respectively; If above-mentioned first, second cam guider contacts with above-mentioned a plurality of first, second cam bawls; Then drive through cam and make above-mentioned lifting shaft decline, if above-mentioned first, second cam guider breaks away from above-mentioned a plurality of first, second cam bawl, then the restoring force through the compression spring rises above-mentioned lifting shaft.

And; Can on above-mentioned cylinder body, the piston with above-mentioned lifting shaft be that benchmark forms first, second mouthful respectively at upside and downside; On above-mentioned lifting shaft, connect piston and jet parts is set; Upside at above-mentioned cylinder body is provided with connector in the position corresponding with the said nozzle part, thereby jet parts is closed by above-mentioned connector when above-mentioned lifting shaft rises, and jet parts is opened wide and made the pressure of upside and downside of above-mentioned piston identical when above-mentioned lifting shaft descends.

In addition, above-mentioned decline driving mechanism can comprise: the cylinder body that is formed with first, second mouthful at upside and downside respectively; Be arranged on the inboard of above-mentioned cylinder body, and the lifting shaft that rises or descend through the air pressure that provides to above-mentioned first, second mouthful; And when above-mentioned nut block enters into above-mentioned bracing strut adjacent areas, receive the instruction of control part and give air pressure, thereby the solenoid controlled directional control valve that above-mentioned lifting shaft is descended to above-mentioned first confession.

The particular content of other embodiment is included in the detailed explanation and accompanying drawing.

Effect of the present invention is following.

Induction system according to the digital control processing machine of first, second embodiment of the present invention that constitutes as stated; Prevent the sagging of ball-screw through the rotating bearing ball leading screw; Can improve the permissible revolution of ball-screw thus, the result can improve the transporting velocity of induction system.

Description of drawings

Fig. 1 is the illustrated view that is used to explain an example of digital control processing machine.

Fig. 2 is the chart of correlation of length and the permissible revolution of expression axle.

Fig. 3 is the illustrated view of overlooking that is used to explain according to the induction system of the digital control processing machine of first embodiment of the invention.

Fig. 4 is the X-X line section illustrated view of Fig. 3.

Fig. 5 is the illustrated view with the expression of releasing according to the induction system of the digital control processing machine of first embodiment of the invention.

Fig. 6 and Fig. 7 are with support from the induction system according to the digital control processing machine of first embodiment of the invention, the release illustrated view and the part section illustrated view of expression.

Fig. 8 to Figure 11 is the illustrated view that is used to explain according to the effect of the induction system of the digital control processing machine of first embodiment of the invention, and Fig. 8 and Fig. 9 are the illustrated view of the propradation of expression support, and Figure 10 and Figure 11 are the illustrated view of the decline state of expression support.

Figure 12 is used on the X-X of Fig. 3 line section the illustration cutaway view of explanation according to the induction system of the digital control processing machine of second embodiment of the invention.

Figure 13 is the illustrated view with the expression of releasing according to the induction system of the digital control processing machine of second embodiment of the invention.

Figure 14 and Figure 15 are illustrated view and the part section illustrated view that support is released from the digital control processing machine according to second embodiment of the invention and represented.

Figure 16 to Figure 19 is the illustrated view that is used to explain according to the effect of the induction system of the digital control processing machine of second embodiment of the invention, and Figure 16 and Figure 17 are the illustrated view of the propradation of expression support, and Figure 18 and Figure 19 are the illustrated view of the decline state of expression support.

Figure 20 and Figure 21 are to being that 100mm, length are 10 at diameter, and fixing condition was simulated and the figure that measures about the axle of 000mm was gone up.

Figure 22 is set at a fulcrum of back-up roller ballscrew and carries out simulated test and the figure that illustrates.

Figure 23 is set at two fulcrums of back-up roller ballscrew and carries out simulated experiment and the figure that illustrates.Among the figure:

1-digital control processing machine, the 2-induction system, 3-carries body, 3a-workbench, 11-servo motor, 12-ball-screw; The 13-frame, 14-nut block, 15-framework, 20-bracing strut, 21-nut block, 22-opened portion; The 23-nut part, 25a, first, second cam guider of 25b-, 27-bonding pad, 28-cam rake, 30-cylinder body, first mouthful of 31-; 32-first connecting piece, 35-connector, 36-tapered portion, 40-packing ring, 50-cylinder body lid, second mouthful of 51-; The 60-lifting shaft, 61-piston, 62-the axis of the piston, 63-jet parts, 64-otch, the 65-first pivot axle sleeve; The 68-pivot, the 70-pilot pin, 75-compresses spring, the 80-support, 81-inserts sheet, the 82-second pivot axle sleeve; 83a, first, second sidewall of 83b-, 85a, first, second cam bawl of 85b-, 90-V piece, 92a, first, second idle running roller of 92b-, 100-solenoid controlled directional control valve.

The specific embodiment

Through accompanying drawing and below the embodiment that is described in detail, advantage of the present invention and characteristics and realize that their method will be clearer and more definite.

In whole specification, identical reference marks refers to identical structural element.

Below, with reference to Fig. 3 and Fig. 7 the induction system according to the digital control processing machine of first embodiment of the invention is described.

Fig. 3 is the illustrated view of overlooking that is used to explain according to the induction system of the digital control processing machine of first embodiment of the invention in the accompanying drawing, and Fig. 4 is the X-X line section illustrated view of Fig. 3.

Like Fig. 3 and shown in Figure 4, according to the induction system of the digital control processing machine of first embodiment of the invention, the upside configuration servo motor 11 at framework 15 is provided with ball-screw 12 on servo motor 11, and ball-screw 12 is supported by frame 13 respectively in both side ends.

Above-mentioned servo motor 11 is by the numerical control of computer program institute, and above-mentioned ball-screw 12 rotates through the driving of servo motor 11.

And on above-mentioned ball-screw 12, linking has

nut block

14,21, above-mentioned

nut block

14,21 to be fixed on the conveying body 3, can be workbench itself and carry body 3, perhaps also can append in addition workbench 3a is set.

In addition; Like Fig. 3 and shown in Figure 4; A plurality of bracing struts 20 can be set on single ball-screw 12; A plurality of bracing struts 20 can be configured on the position of the length of dividing ball-screw 12 equably, can more effectively prevent the sagging of ball-screw 12 owing to dispose then with more support number densely, thereby can realize speed of gyration faster.

And bracing strut 20 is arranged on a side of said frame 15, at upside a plurality of first, second

idle running roller

92a, 92b is set, and above-mentioned a plurality of first, second

idle running roller

92a, 92b support above-mentioned ball-screw 12.

In addition, possess in above-mentioned nut block 21 and above-mentioned bracing strut 20 is descended during through above-mentioned bracing strut 20, thereby avoid the decline driving mechanism of above-mentioned nut block 21 and above-mentioned bracing strut 20 collisions.

Illustrate in greater detail structure with reference to Fig. 5 to Fig. 7 according to the induction system of the digital control processing machine of first embodiment of the invention.

Fig. 5 is the illustrated view with the expression of releasing according to the induction system of the digital control processing machine of first embodiment of the invention, and Fig. 6 and Fig. 7 are with support from the induction system according to the digital control processing machine of first embodiment of the invention, the release illustrated view and the part section illustrated view of expression.

Like Fig. 5 and shown in Figure 6, on

nut block

14,21, can dispose the cam guider, especially the cam guider can be that the center disposes first,

second cam guider

25a, 25b in both sides with ball-screw 12.

As shown in Figure 6, above-mentioned first, second cam guider 25a, the 25b both sides between horizontal zone form cam rake 28, form bonding pad 27 at upside, and bonding pad 27 can be arranged on the nut block 21, also can as shown in Figure 4ly be arranged in addition to carry on the body 3.

With reference to Fig. 7 and the above-mentioned bracing strut 20 of Fig. 8 further explain.

Bracing strut 20 comprises: the cylinder body 30 that is arranged on a side of said frame 15; The lifting shaft 60 that is configured in the central authorities of above-mentioned cylinder body 30 and goes up and down; Be arranged on above-mentioned cylinder body 30 inside and along on push to the compression spring 75 that the direction of stating lifting shaft 60 applies restoring force; And be configured in the upper end of above-mentioned lifting shaft 60 and support above-mentioned ball-screw 12, thereby contact with above-mentioned ball-screw 12 and above-mentioned a plurality of first, second idle running roller 92a, the 92b that rotate.

Promptly; Since lifting shaft 60 because of the bounce of above-mentioned compression spring 75 always to by on the direction that pushes away move; So above-mentioned a plurality of first, second

idle running roller

92a, 92b contact with ball-screw 12; When vertical direction applies external force, thereby a plurality of first, second idle running roller of compression spring 75

compressions

92a, 92b descend.

And like Fig. 7 and shown in Figure 8, in a side of above-mentioned lifting shaft 60, pilot pin 70 connects piston 61 to the direction consistent with the direction of motion of lifting shaft 60, and this pilot pin 70 can be arranged on a side of above-mentioned cylinder body 30.

That is, make above-mentioned pilot pin 70 straight direction in edge when above-mentioned lifting shaft 60 goes up and down rectilinear motion and can not rock, a plurality of first, second

idle running roller

92a, 92b are more being gone up and down under the stable status.

In addition, like Fig. 6 to shown in Figure 8, lifting shaft 60 also be included in the upper end by pivot 68 to the left and right direction tiltably be provided with and be provided with the support 80 of above-mentioned a plurality of first, second

idle running roller

92a, 92b.

Above-mentioned lifting shaft 60 can form otch 64 in the upper end, on these otch 64 sidewalls, can connect to form the first pivot axle sleeve 65.

In addition, above-mentioned support 80 can form at downside and insert sheet 81, on this insertion sheet 81, can form the second pivot axle sleeve 82.

Be inserted under the state in the above-mentioned otch 64 at above-mentioned insertion sheet 81, insert pivot 68 and connect first, second

pivot axle sleeve

65,82, support 80 can be in the angular range tilt of regulation as a result.

End at above-mentioned pivot 68 links the binding key element like nut and so on, in case pivot 68 separates arbitrarily.

Promptly; Even if some can not keep level because of unforeseeable reason for a plurality of first cam guider 25a and the second cam guider 25b; Also can when utilizing pivot 68 to tilt, adjust equilibrium, thereby first,

second cam guider

25a, 25b are docked with first,

second cam bawl

85a, 85b.

In addition, above-mentioned support 80 tilts through above-mentioned pivot 68, thereby in ball-screw 12 vibrations and a little occasion that has departed from original position can actively tilt, first, second idle running

roller

92a, 92b can closely be contacted with ball-screw 12.

And, can further comprise the pressing mechanism of above-mentioned lifting shaft 60 to the direction pressurization of rising.

Above-mentioned pressing mechanism can be following pressing mechanism.Promptly, on cylinder body 30, be that benchmark forms first,

second mouthful

31,51 respectively at upside and downside with the piston 61 of lifting shaft 60, supply with air pressure to above-mentioned second mouthful 51 of being formed at downside, and discharge air pressure from above-mentioned first mouthful 31 of being formed at upside.

The above-mentioned cylinder body 30 of further explain; As shown in Figure 7, at the downside binding cylinder body lid 50 of cylinder body 30, the piston 61 of configuration lifting shaft 60 in cylinder body 30; Be formed at first mouthful of 31 upside that is positioned at piston 61 of upside, be formed at second mouthful of 51 side that is positioned at above-mentioned cylinder body lid 50 of downside.

Downside at above-mentioned piston 61 forms the axis of the piston 62, and above-mentioned the axis of the piston 62 connects above-mentioned cylinder body lid 50 and is provided with.

And; Can further be formed for seat groove that compression spring 75 is positioned at the downside of piston 61, also can further be formed for seat groove that compression spring 75 is positioned at the upside of cylinder body lid 50, thus; Compression spring 75 can not swung arbitrarily, always is positioned at original position.

On the other hand, above-mentioned second mouthful 51 can be formed at the seat groove that above-mentioned cylinder body covers the compression spring of 50 upsides and be communicated with the processing that has the thus second mouthful 51 easy advantage that becomes.

That is, through second mouthful of 51 sustainable supply air pressure, air pressure is exerted pressure from the downside of piston 61 the make progress direction of push piston 61 of side direction that makes progress in cylinder body 30.

Decline driving mechanism such as Fig. 6 and shown in Figure 7 of above-mentioned induction system according to first embodiment of the invention; Piston 61 with lifting shaft 60 on above-mentioned cylinder body 30 is that benchmark forms first,

second mouthful

31,51 respectively at upside and downside; On above-mentioned lifting shaft 60, connect piston 61 and jet parts 63 is set, on the position corresponding, connector 35 is set with said nozzle part 63 at the upside of cylinder body 30.

That is, jet parts 63 is closed by above-mentioned connector 35 when lifting shaft 60 rises, thus when above-mentioned lifting shaft 60 descends jet parts 63 to open wide the pressure of the upside that makes above-mentioned piston 61 and downside identical.

On the other hand, decline driving mechanism such as Figure 14 and shown in Figure 15 according to the induction system of second embodiment of the invention comprise: the cylinder body 30 that is formed with first,

second mouthful

31,51 at upside and downside respectively; Be arranged on the inboard of cylinder body 30, and the lifting shaft 60 that rises or descend through the air pressure that provides to first,

second mouthful

31,51; And when above-mentioned nut block 21 enters into bracing strut 20 adjacent areas, receive the instruction of control part and supply with air pressure to above-mentioned first mouthful 31, thereby the solenoid controlled directional control valve 100 that above-mentioned lifting shaft 60 is descended.

Above-mentioned control part is the structural element that the digital control processing machine is possessed basically, can import the various digital informations of digital control processing machine in advance, utilizes this information to send instruction.

For example; When the fulcrum that is provided with bracing strut 20 has been input to control part; If nut block 21 moves and near bracing strut 20; Then control part can be grasped in the zone that gets into regulation, when nut block 21 enters in the zone of regulation, changes above-mentioned solenoid controlled directional control valve 100 and the supply and the discharge directions of change air pressure.

Below, with reference to accompanying drawing 3, Fig. 8 to Figure 11 and Figure 16 to Figure 19, the effect of induction system of the digital control processing machine of first, second embodiment according to the present invention is described.

At first, effect according to the digital control processing machine of first embodiment of the invention is described.

With ball-screw 12 to clockwise direction or rotation counterclockwise, nut block 21 to the left direction or the right direction straight line moves and nut block 21 through bracing strut 20.

And when nut block 21 and bracing strut 20 were not interfered, like Fig. 8 and shown in Figure 9, lifting shaft 60 was kept propradation, kept the state that first, second idle running

roller

92a, 92b and ball-screw 12 are close to the plus-pressure of regulation, and ball-screw 12 rotates smoothly.

When nut block 21 was passed through bracing strut 20, a plurality of first,

second cam guider

25a, 25b contacted with a plurality of first,

second cam bawl

85a, 85b, if nut block 21 is advanced further, then descended like Figure 10 and above-mentioned lifting shaft shown in Figure 11 60.

That is, first,

second cam guider

25a, 25b contact with first,

second cam bawl

85a, 85b when advancing, thereby first,

second cam bawl

85a, 85b roll along cam rake 28 and descend, and make lifting shaft 60 whole declines thus.

As stated, along with lifting shaft 60 descends, above-mentioned first, second idle running

roller

92a, 92b break away from ball-screw 12 and guarantee the space, and above-mentioned ball-screw 12 utilizes this space to pass through.

Nut block 21 is just through behind the bracing strut 20, and lifting shaft 60 rises, and

roller

92a, 92b are close to ball-screw 12 and back-up roller ballscrew 12 thereby first, second dallies.

Therefore, realize the up-down of lifting shaft 60 with mechanical realization through cam according to the induction system of first embodiment of the invention.

On the other hand; When pressurizeing through pressing mechanism like air pressure supply and so on; Said nozzle part 63 is close to the tapered portion 36 of connector 35 and is closed; But in the moment that lifting shaft 60 is pushed by first,

second cam guider

25a, 25b, jet parts 63 is opened wide, and air pressure through this interstitial row of opening wide.

As stated, the moment discharging air pressure, there is not load in the inside of cylinder body 30, the piston 61 of lifting shaft 60 can descend through cam with unloaded (idle) state easily thus.

In addition; Thereby in nut block 21 through bracing strut 20 first, second cam guider 25a, when 25b no longer pushes first, second cam bawl; Above-mentioned piston 61 can rise through the restoring force of compression spring 75, and can rise through the air pressure of supplying with via second mouthful 51.

Because the sectional area of the downside sectional area ratio jet parts 63 of piston 61 is big; So can lifting shaft 60 be pushed away on the direction that rises via above-mentioned second mouthful of 51 air pressure of supplying with; After this, rise to greatest extent jet parts 63 then of jet parts 63 is stopped up by the tapered portion 36 of connector 35.

That is,, when bracing strut 20 descends, need not outside instruction or artificial operation, but the effect through mechanism's mode can make nut block 21 move and not interfere with bracing strut 20 according to the induction system of the invention described above first embodiment.

Below, with reference to the effect of accompanying drawing 16 to Figure 19 explanations according to the induction system of second embodiment of the invention.

Like Figure 16 and shown in Figure 17, according to the induction system of second embodiment of the invention, initial bracing strut 20 rises with the state of being close to ball-screw 12.

Promptly; Piston 61 rises through compression spring 75 or the pressing mechanism as air pressure; Lifting shaft 60 rises overally thus; Be arranged on first, second idle running roller 92a of lifting shaft 60 upper ends, the surface that 92b is close to ball-screw 12, above-mentioned a plurality of first, second idle running roller 92a, back-up roller ballscrew 12 when 92b rotates along with the rotation of ball-screw 12.

After this, nut block 21 moves and near bracing strut 20, then produces instruction at control part and make solenoid controlled directional control valve 100 actions.

Like Figure 17 and shown in Figure 19, can set the last transition near the periphery of bracing strut 20, this last transition can be input to control part.

The supply and the direction of exhaust of above-mentioned solenoid controlled directional control valve 100 conversion air pressure, the techniques make use of this solenoid controlled directional control valve 100 be known technology, so omit explanation in more detail.

As stated, supply with via second mouthful 51 if nut block 21, is then cut off air pressure near bracing strut 20, in contrast, air pressure is supplied with via first mouthful 31, and lifting shaft 60 descends as a result.

That is, along with lifting shaft 60 descends, first, second idle running

roller

92a, 92b break away from ball-screw 12 and guarantee that space, ball-screw 12 utilize this space to pass through.

If nut block 21 breaks away from the last transition away from bracing strut 20, then make solenoid controlled directional control valve 100 conversions at control part, cut off air pressure and supply with, and pass through second mouthful 51 and supply with air pressure, thereby lifting shaft 60 is risen via first mouthful 31.

That is, lifting shaft 60 rises after nut block 21 is passed through, thus first, second idle running

roller

92a, 92b back-up roller ballscrew 12.

As stated, control the up-down of lifting shaft 60 from the control part reception instruction of digital control processing machine according to the induction system of second embodiment of the invention.

As stated, the induction system of first, second embodiment can be in the length intermediate supports of long ball-screw 12 according to the present invention, thereby can improve the rotary speed of ball-screw 12, the transporting velocity that can further accelerate to carry body thus.

In addition, through at intermediate supports ball-screw 12, can obviously reduce the sagging of ball-screw 12.

The above-mentioned ball-screw 12 of further explain sagging.

Shown in Figure 21ly know as above-mentioned, because of deadweight produces sagging about 15.7mm.

Figure 22 is set at a fulcrum of back-up roller ballscrew and carries out simulated test and illustrates, and shown in figure 22ly knows that the sag of chain of ball-screw reduces to 0.984mm.

Figure 23 is set at two fulcrums of back-up roller ballscrew and carries out simulated experiment and illustrates, and shown in figure 23ly knows that the sag of chain of ball-screw reduces to 0.131mm.

To shown in Figure 23, the length of ball-screw 12 is long more like above-mentioned Figure 21, and the sag of chain of ball-screw 12 produces seriously more, and back-up roller ballscrew 12 just can significantly reduce the sag of chain of ball-screw 12 more in many places.

That is, the induction system of first, second embodiment according to the present invention, owing to utilize bracing strut 20 back-up roller ballscrews 12, thus can prevent the sagging of ball-screw 12, thus induction system can more stably be used.

On the other hand; As shown in Figure 2; Distance between the fulcrum of bolster is shorter then can to reach rotary speed faster; The induction system of first, second embodiment is owing to utilize bracing strut 20 back-up roller ballscrews 12 according to the present invention, thus can drive the rotary speed of ball-screw 12 more apace, thus can improve the performance of induction system.

Above with reference to description of drawings embodiments of the invention, can implement with other concrete mode under the situation that does not change its technological thought and essential feature but person of ordinary skill in the field of the present invention is appreciated that the present invention.

Therefore; Being interpreted as embodiment recited above, to be the example that illustrates in all respects be not to be used for limiting; Protection scope of the present invention should be interpreted as above-mentioned detailed explanation and show through the claim scope, and the implication of claim scope and scope and all changes of deriving from its equivalents or the mode of distortion all are included in protection scope of the present invention.

The induction system of first, second embodiment is capable of using in the digital control processing machine rapidly on the purposes of means of delivery platform or workbench according to the present invention.

Claims

1. the induction system of a digital control processing machine is characterized in that, comprising:

The ball-screw (12) that is arranged on that framework (15) is gone up and rotates through the driving of servo motor (11);

The nut part (23) that will combine and carry body (3) to combine and make the nut block (21) of carrying body (3) straight line to move with above-mentioned ball-screw (12) screw thread;

Be arranged on a side of said frame (15) and a plurality of first, second idle running rollers (92a, 92b) be set, and utilize above-mentioned a plurality of first, second idle running roller (92a, 92b) to support the bracing strut (20) of above-mentioned ball-screw (12) at upside; And,

When the above-mentioned bracing strut (20), above-mentioned bracing strut (20) is descended in case the decline driving mechanism of above-mentioned nut block (21) and above-mentioned bracing strut (20) collision in above-mentioned nut block (21),

Above-mentioned bracing strut (20) comprising: the cylinder body (30) that is arranged on a side of said frame (15);

Be configured in the central authorities of above-mentioned cylinder body (30) and the lifting shaft (60) that goes up and down;

Be arranged on above-mentioned cylinder body (30) inside and along on push to the compression spring (75) that the direction of stating lifting shaft (60) applies restoring force; And,

Be configured in the upper end of above-mentioned lifting shaft (60) and support above-mentioned ball-screw (12), thereby contact with above-mentioned ball-screw (12) and above-mentioned a plurality of first, second idle running rollers (92a, 92b) of rotating,

Above-mentioned lifting shaft (60) further comprise by pivot (68) to the left and right direction tiltably be arranged on the upper end and be provided with above-mentioned a plurality of first, second idle running rollers (92a, 92b) support (80).

2. the induction system of digital control processing machine according to claim 1 is characterized in that,

Above-mentioned bracing strut (20) is provided with a plurality of.

3. the induction system of digital control processing machine according to claim 1 is characterized in that,

Further comprise the pressing mechanism of above-mentioned lifting shaft (60) to the direction pressurization of rising,

The piston (61) that above-mentioned pressing mechanism is gone up with above-mentioned lifting shaft (60) at above-mentioned cylinder body (30) is that benchmark forms first, second mouthful (31,51) respectively at upside and downside; Supply with air pressure to above-mentioned second mouthful (51) that are formed at downside, and above-mentioned lifting shaft (60) is pressurizeed to the direction that rises.

4. the induction system of digital control processing machine according to claim 1 is characterized in that,

Above-mentioned decline driving mechanism comprises:

Be arranged on a side of above-mentioned nut block (21) or above-mentioned conveying body (3); And the formation of the both sides between horizontal zone cam rake (28), and form first, second cam guider (25a, 25b) also longer between above-mentioned horizontal zone than the length of above-mentioned nut block (21);

In cylinder body (30), be compressed the lifting shaft (60) of spring (75) bounce-back; And,

Be arranged on the both sides, upper end of above-mentioned lifting shaft (60), and a plurality of first, second cam bawls (85a, 85b) that contact with above-mentioned a plurality of first, second cam guiders (25a, 25b) respectively,

If above-mentioned first, second cam guider (25a, 25b) contacts with above-mentioned a plurality of first, second cam bawls (85a, 85b); Then driving through cam descends above-mentioned lifting shaft (60); If above-mentioned first, second cam guider (25a, 25b) breaks away from above-mentioned a plurality of first, second cam bawls (85a, 85b), then the restoring force through compression spring (75) rises above-mentioned lifting shaft (60).

5. the induction system of digital control processing machine according to claim 4 is characterized in that,

The piston of going up with above-mentioned lifting shaft (60) at above-mentioned cylinder body (30) (61) is that benchmark forms first, second mouthful (31,51) respectively at upside and downside,

Go up perforation piston (61) and jet parts (63) be set at above-mentioned lifting shaft (60),

Upside at above-mentioned cylinder body (30) is being provided with connector (35) with the corresponding position of said nozzle part (63),

Jet parts (63) is closed by above-mentioned connector (35) when above-mentioned lifting shaft (60) rises, and jet parts (63) when above-mentioned lifting shaft (60) descends is identical with the pressure of downside thereby open wide the upside make above-mentioned piston (61).

6. the induction system of digital control processing machine according to claim 1 is characterized in that,

Above-mentioned decline driving mechanism comprises:

Be formed with the cylinder body (30) of first, second mouthful (31,51) respectively at upside and downside;

Be arranged on the inboard of above-mentioned cylinder body (30), and the lifting shaft (60) that rises or descend through the air pressure that provides to above-mentioned first, second mouthful (31,51); And,

When above-mentioned nut block (21) enters into above-mentioned bracing strut (20) adjacent areas, receive the instruction of control part and supply with air pressure to above-mentioned first mouthful (31), thus the solenoid controlled directional control valve (100) that above-mentioned lifting shaft (60) is descended.