CN204700647U - Numerical control gantry machining center power and burden-alleviating device - Google Patents

Numerical control gantry machining center power and burden-alleviating device Download PDF

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Publication number
CN204700647U
CN204700647U CN201520256307.8U CN201520256307U CN204700647U CN 204700647 U CN204700647 U CN 204700647U CN 201520256307 U CN201520256307 U CN 201520256307U CN 204700647 U CN204700647 U CN 204700647U
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axis
axis slide
screw mandrel
brace table
machining center
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CN201520256307.8U
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Chinese (zh)
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杨勇
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CHONGQING MASITER PRECISION MACHINERY Co Ltd
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CHONGQING MASITER PRECISION MACHINERY Co Ltd
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Abstract

The utility model discloses a kind of numerical control gantry machining center power and burden-alleviating device, the tail end of brace table (1a) is provided with secondary water tank (1c), workbench (4) is positioned between two columns (2), the X-axis nut seat (5) that workbench (4) bottom is fixing and X-axis screw mandrel (6) threaded engagement, the rear end of X-axis screw mandrel (6) is connected with X-axis motor by the first shaft coupling; Nitrogen balance cylinder (19) is symmetrical arranged in the left and right sides of Y-axis slide (11), the piston rod of nitrogen balance cylinder (19) stretches out straight up, and be connected with ceiling hold (20), ceiling hold (20) is fixed on the top of main spindle box (15).Each axially-movable of the utility model is realized by high pulling torque motor and feed screw nut pair, can realize the processing of complex profile, be carried out the gravity of balancing main shaft case by nitrogen balance cylinder, can effectively reduce the load of Z axis motor; Secondary water tank is integrated on base, fundamentally solves the Leakage that leaks.

Description

Numerical control gantry machining center power and burden-alleviating device
Technical field
The utility model belongs to machine tool technology field, specifically, and particularly a kind of numerical control gantry machining center power and burden-alleviating device.
Background technology
The high-efficiency automatic lathe being applicable to processed complex part that numerical control machining center is made up of plant equipment and digital control system.Numerical control machining center is current one of the highest, most widely used Digit Control Machine Tool of output in the world.Its comprehensive process ability is stronger, more processing content can be completed after workpiece clamped one time, machining accuracy is higher, with regard to the batch workpiece of medium difficulty of processing, its efficiency is 5 ~ 10 times of conventional equipment, particularly it can complete the processing that many conventional equipments can not complete, more complicated to shape, the single-piece work that required precision is high or small batch multi-item production more applicable.
Crossbeam fixed gantry machining center is the Digit Control Machine Tool of current extensive use.But existing numerical control gantry machining center is bulky, area occupied is large, and structural rigidity is poor, and overall precision is unstable; Meanwhile, vibrate comparatively large in the course of the work, larger noise can be produced, and temperature rise is fast, less reliable.The main spindle box of numerical control gantry machining center is vertically arranged, the weight of main spindle box is carried by Z axis motor substantially, can increase the wearing and tearing of Z axis screw mandrel thus, affects the stationarity of Z axis motion and the service life of Z axis motor.
Base is the chassis of crossbeam fixed gantry machining center, is positioned at bottommost, for supporting the weight of whole equipment and being convenient to other parts layout.Existing numerical control gantry machining center is generally equipped with secondary water tank on the side of base, for splendid attire cooling fluid, and plays precipitation, filtration cooling fluid.But secondary water tank needs to make guard shield supporting mechanism in addition, adds cost on the one hand, is unfavorable for assembling; On the other hand, the volume of base increases, and transports very inconvenient, can affect the globality of whole machining center.
Utility model content
The numerical control gantry machining center power that technical problem to be solved in the utility model is to provide a kind of compact conformation, can effectively reduce motor load and burden-alleviating device.
The technical solution of the utility model is as follows: a kind of numerical control gantry machining center power and burden-alleviating device, the brace table (1a) of rectangle is formed with at the top of base (1), the left and right sides of this brace table (1a) postmedian is symmetrical arranged bearing (1b), the upper vertical columns (2) of each bearing (1b), top common support crossbeam (3) of the right and left column (2), its key is: the tail end of described brace table (1a) is provided with secondary water tank (1c), described secondary water tank (1c) and brace table (1a) are by being cast into one, water inlet and the delivery port of secondary water tank (1c) are opened on the breech face of brace table (1a),
In the top of described brace table (1a), workbench (4) is set, this workbench (4) is positioned between two columns (2), the X-axis nut seat (5) that workbench (4) bottom is fixing and X-axis screw mandrel (6) threaded engagement, the rear end of described X-axis screw mandrel (6) is connected with X-axis motor by the first shaft coupling, X-axis motor is arranged on the rear end of brace table (1a), and is positioned at X-axis guard shield (7); Be symmetrical arranged X-axis slide rail (8) in the left and right sides of described X-axis screw mandrel (6), workbench (4) is slidably matched with X-axis slide rail (8) by the X-axis slide block (9) of bottom;
At the front end face of described crossbeam (3), upper and lower two Y-axis slide rails (10) are housed, Y-axis slide (11) is slidably matched by Y-axis slide block and this two Y-axis slide rails (10), Y-axis nut seat is fixed at the back side of Y-axis slide (11), this Y-axis nut seat and Y-axis screw mandrel (12) threaded engagement, described Y-axis screw mandrel (12) is positioned between two Y-axis slide rails (10), and one end of this Y-axis screw mandrel (12) is connected with y-axis motor (13) by the second shaft coupling;
At the front end face of described Y-axis slide (11), about two parallel Z axis slide rails (14) are set, main spindle box (15) is positioned between these two Z axis slide rails (14), and be slidably matched with these two Z axis slide rails (14) by the Z axis slide block (16) of side, Z axis nut seat is fixed at the back side of main spindle box (15), this Z axis nut seat coordinates with Z axis wire rod thread, described Z axis screw mandrel is positioned between two Z axis slide rails (14), and the upper end of this Z axis screw mandrel is connected with Z axis motor (17) by the 3rd shaft coupling;
Nitrogen balance cylinder (19) is symmetrical arranged in the left and right sides of described Y-axis slide (11), cylinder body and the Y-axis slide (11) of this nitrogen balance cylinder (19) fix, the piston rod of nitrogen balance cylinder (19) stretches out straight up, and be connected with ceiling hold (20), described ceiling hold (20) is fixed on the top of main spindle box (15).
Adopt above technical scheme, X-axis motor rotation, drive X-axis screw mandrel original place to rotate, workbench is moved at fore-and-aft direction, to realize the X-axis displacement of institute's clamping workpiece on workbench; Y-axis motor operates, and drives Y-axis screw mandrel original place to rotate, Y-axis slide and main spindle box is moved at left and right directions, to realize the Y-axis displacement of cutter; Z axis motor rotation, drives Z axis screw mandrel original place to rotate, main spindle box is moved at above-below direction, to realize the Z axis displacement of cutter.Multi-shaft interlocked above, can machining large framework and complex profile, can bore, milling, boring, diverse in function, the scope of application is widely.High pulling torque motor all selected by X-axis motor, y-axis motor and Z axis motor, respective outfit adjutant feed screw nut rotary motion converts rectilinear motion to, and adopt line slideway to lead, like this without the need to being equipped with reduction box, in simplification structure, while reducing costs, can effectively reduce the volume of whole machining center on the one hand, structural rigidity is good; On the other hand, the high and stable accuracy of precision, vibrate little in the course of the work, noise is low, and temperature rise is comparatively slow, and reliability is secure.
The utility model casts secondary water tank in base tail end integral type, avoids and makes guard shield supporting mechanism and secondary water tank in addition, simplifies the structure on the one hand, eliminates assembly process, greatly reduce production cost; On the other hand, fundamentally solve secondary water tank because assembling the leakage of oil of leaking caused not in place, and convenient transportation, enhance the globality of machining center.The intake-outlet of secondary water tank is arranged on the breech face of base top brace table, is conducive to pipeline and connects and arrange.
Nitrogen balance cylinder is set up in the both sides of Y-axis slide, when main spindle box moves up and down under the drive of Z axis motor, the piston rod of nitrogen balance cylinder stretches along with moving up and down of main spindle box, nitrogen balance cylinder is used for the gravity of balancing main shaft case, thus reduce the load of Z axis motor, reduce the wearing and tearing of Z axis screw mandrel, Z axis is moved more steady, the longer service life of Z axis motor.
Conveniently lift, the symmetrical mounting hanger (18) in the two ends, left and right at described crossbeam (3) top.
More smooth and easy in order to make main spindle box move up and down, it is right that described Z axis slide block (16) has upper, middle and lower three, and often pair of Z axis slide block (16) is divided into symmetrical two.
Described bearing (1b) is square frame body, the end face of bearing (1b) and the either flush of brace table (1a), and bearing (1b) and brace table (1a) are cast into one.Above structural bearings moulding is simple, is easy to processing and fabricating, and on bearing, install column convenient, can guarantee the steadiness of support post.
The horizontal stripe (21) that two, front and back are parallel to each other is provided with in the centre position of described brace table (1a) end face middle front part, the top of these two horizontal stripes (21) is provided with two longitudinal blocks (22) in left and right, described longitudinal block (22) is perpendicular with horizontal stripe (21), the rear and front end of longitudinal block (22) supports fixing by the horizontal stripe (21) of correspondence, and longitudinal block (22) has multiple screw from front to back.Above structure horizontal stripe and longitudinal block composition bearing block supporter, for supporting the bearing block of fixing X-axis screw mandrel, while facilitating bearing block to assemble, can make bearing block install firm.
The two ends up and down of described nitrogen balance cylinder (19) cylinder body are all connected with Y-axis slide (11) by anchor ear.Above structure nitrogen balance cylinder easy accessibility, is connected not only firm but also reliable with Y-axis slide.
In order to reduced proper motion, facilitate processing and fabricating, guarantee structural strength, described ceiling hold (20) is for "T"-shaped.
Beneficial effect: each axially-movable of the utility model is realized by high pulling torque motor and feed screw nut pair, and can realize the processing of complex profile, have structure simple, compact, volume is little, and precision is high, vibrates little, the features such as noise is low, good reliability; Secondary water tank is integrated on base, avoids and makes guard shield supporting mechanism and secondary water tank in addition, while reduction production cost, fundamentally solves secondary water tank because assembling the leakage of oil of leaking caused not in place; The utility model carrys out the gravity of balancing main shaft case by nitrogen balance cylinder, can effectively reduce the load of Z axis motor, to guarantee the stationarity that Z axis moves.
Accompanying drawing explanation
Fig. 1 is side view of the present utility model.
Fig. 2 is the right view of Fig. 1.
Fig. 3 is the top view of Fig. 2.
Fig. 4 is the top view of base.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is described in further detail:
As shown in Figure 1, Figure 2, Figure 3, Figure 4, the brace table 1a of rectangle is formed with at the top of base 1, the tail end of this brace table 1a is provided with secondary water tank 1c, secondary water tank 1c and brace table 1a is by being cast into one, water inlet and the delivery port of secondary water tank 1c are opened on the breech face of brace table 1a, and the water inlet of secondary water tank 1c and delivery port are positioned at sustained height.Be symmetrical arranged bearing 1b in the left and right sides of brace table 1a postmedian, this bearing 1b is square frame body, for supporting vertical columns.The end face of bearing 1b and the either flush of brace table 1a, and bearing 1b and brace table 1a is cast into one.Be provided with the horizontal stripe 21 that two, front and back are parallel to each other in the centre position of brace table 1a end face middle front part, horizontal stripe 21 and brace table 1a are structure as a whole.Two longitudinal blocks 22 in left and right are provided with above two horizontal stripes 21, longitudinal block 22 is perpendicular with horizontal stripe 21, the rear and front end of longitudinal block 22 supports fixing by the horizontal stripe 21 of correspondence, and longitudinal block 22 has multiple screw from front to back, the number of screw is determined according to actual needs, the present embodiment is preferably three, and the screw on the longitudinal block 22 of two, left and right is symmetrical.
As shown in Figure 1, Figure 2, Figure 3 shows, vertical columns 2 on each bearing 1b, the top common support crossbeam 3 of the right and left column 2.Above brace table 1a, arrange workbench 4, workbench 4 is for positioning workpiece to be processed.Workbench 4 between two columns 2, X-axis nut seat 5 fixing bottom workbench 4 and X-axis screw mandrel 6 threaded engagement.X-axis screw mandrel 6 extends along the longitudinal direction, the two ends of this X-axis screw mandrel 6 by bearing and bearing block support on brace table 1a.The rear end of X-axis screw mandrel 6 is connected with the output shaft of X-axis motor by the first shaft coupling, and X-axis motor is arranged on the rear end of brace table 1a, and is positioned at X-axis guard shield 7, and X-axis guard shield 7 is fixed on brace table 1a.Be symmetrical arranged X-axis slide rail 8 in the left and right sides of X-axis screw mandrel 6, X-axis slide rail 8 parallels with X-axis screw mandrel 6, and two X-axis slide rails 8 are equal to the distance of X-axis screw mandrel 6, and workbench 4 is slidably matched with two X-axis slide rails 8 respectively by two groups of X-axis slide blocks 9 of bottom.When X-axis motor rotation time, the output shaft of X-axis motor drives X-axis screw mandrel 6 original place to rotate, and under the guide effect of X-axis slide rail 8, workbench 4 moves at fore-and-aft direction.
As shown in Figure 1, Figure 2, Figure 3 shows, at the symmetrical mounting hanger 18 in the two ends, left and right at crossbeam 3 top, to facilitate lifting.At the front end face of crossbeam 3, upper and lower two Y-axis slide rails 10 be parallel to each other are housed, Y-axis slide rail 10 extends in left-right direction.Y-axis slide 11 is slidably matched with these two Y-axis slide rails 10 respectively by two groups of Y-axis slide blocks.Y-axis nut seat is fixed, this Y-axis nut seat and Y-axis screw mandrel 12 threaded engagement at the back side of Y-axis slide 11.Y-axis screw mandrel 12 is between two Y-axis slide rails 10, and Y-axis screw mandrel 12 is parallel to Y-axis slide rail 10, and the distance of Y-axis screw mandrel 12 to two Y-axis slide rails 10 is equal.Y-axis screw mandrel 12 is by two groups of bearings and bearing block rotatably support on crossbeam 3, and one end of Y-axis screw mandrel 12 is connected with the output shaft of y-axis motor 13 by the second shaft coupling.When y-axis motor 13 operates time, the output shaft of y-axis motor 13 drives Y-axis screw mandrel 12 original place to rotate, and under the guide effect of Y-axis slide rail 10, Y-axis slide 11 moves at left and right directions.
As shown in Figure 1, Figure 2, Figure 3 shows, arrange about two parallel Z axis slide rails 14 at the front end face of Y-axis slide 11, Z axis slide rail 14 extends along the vertical direction.Main spindle box 15 between these two Z axis slide rails 14, and is slidably matched with these two Z axis slide rails 14 by the Z axis slide block 16 of side.As preferably, in the present embodiment, to have upper, middle and lower three right for Z axis slide block 16, and often pair of Z axis slide block 16 is divided into symmetrical two.Fix Z axis nut seat at the back side of main spindle box 15, this Z axis nut seat coordinates with Z axis wire rod thread.Z axis screw mandrel is between two Z axis slide rails 14, and this Z axis screw mandrel parallels with Z axis slide rail 14, and Z axis screw mandrel is equal to the distance of two Z axis slide rails 14.Z axis screw mandrel rotatably support is on Y-axis slide 11, and the upper end of Z axis screw mandrel is connected with the output shaft of Z axis motor 17 by the 3rd shaft coupling.When Z axis motor 17 operates time, the output shaft of Z axis motor 17 drives Z axis screw mandrel original place to rotate, and under the guide effect of Z axis slide rail 14, main spindle box 15 moves at above-below direction.
As shown in Figure 1, Figure 2, Figure 3 shows, arrange ceiling hold 20 at the top of main spindle box 15, this ceiling hold 20 is preferably "T"-shaped, and bottom and the main spindle box 15 of ceiling hold 20 fix.Be symmetrical arranged nitrogen balance cylinder 19 in the left and right sides of Y-axis slide 11, the two ends up and down of this nitrogen balance cylinder 19 cylinder body are all connected with Y-axis slide 11 by anchor ear, and the piston rod of nitrogen balance cylinder 19 stretches out straight up, and are connected with the cantilever of ceiling hold 20.

Claims (7)

1. a numerical control gantry machining center power and burden-alleviating device, the brace table (1a) of rectangle is formed with at the top of base (1), the left and right sides of this brace table (1a) postmedian is symmetrical arranged bearing (1b), the upper vertical columns (2) of each bearing (1b), top common support crossbeam (3) of the right and left column (2), it is characterized in that: the tail end of described brace table (1a) is provided with secondary water tank (1c), described secondary water tank (1c) and brace table (1a) are by being cast into one, water inlet and the delivery port of secondary water tank (1c) are opened on the breech face of brace table (1a),
In the top of described brace table (1a), workbench (4) is set, this workbench (4) is positioned between two columns (2), the X-axis nut seat (5) that workbench (4) bottom is fixing and X-axis screw mandrel (6) threaded engagement, the rear end of described X-axis screw mandrel (6) is connected with X-axis motor by the first shaft coupling, X-axis motor is arranged on the rear end of brace table (1a), and is positioned at X-axis guard shield (7); Be symmetrical arranged X-axis slide rail (8) in the left and right sides of described X-axis screw mandrel (6), workbench (4) is slidably matched with X-axis slide rail (8) by the X-axis slide block (9) of bottom;
At the front end face of described crossbeam (3), upper and lower two Y-axis slide rails (10) are housed, Y-axis slide (11) is slidably matched by Y-axis slide block and this two Y-axis slide rails (10), Y-axis nut seat is fixed at the back side of Y-axis slide (11), this Y-axis nut seat and Y-axis screw mandrel (12) threaded engagement, described Y-axis screw mandrel (12) is positioned between two Y-axis slide rails (10), and one end of this Y-axis screw mandrel (12) is connected with y-axis motor (13) by the second shaft coupling;
At the front end face of described Y-axis slide (11), about two parallel Z axis slide rails (14) are set, main spindle box (15) is positioned between these two Z axis slide rails (14), and be slidably matched with these two Z axis slide rails (14) by the Z axis slide block (16) of side, Z axis nut seat is fixed at the back side of main spindle box (15), this Z axis nut seat coordinates with Z axis wire rod thread, described Z axis screw mandrel is positioned between two Z axis slide rails (14), and the upper end of this Z axis screw mandrel is connected with Z axis motor (17) by the 3rd shaft coupling;
Nitrogen balance cylinder (19) is symmetrical arranged in the left and right sides of described Y-axis slide (11), cylinder body and the Y-axis slide (11) of this nitrogen balance cylinder (19) fix, the piston rod of nitrogen balance cylinder (19) stretches out straight up, and be connected with ceiling hold (20), described ceiling hold (20) is fixed on the top of main spindle box (15).
2. numerical control gantry machining center power according to claim 1 and burden-alleviating device, is characterized in that: the symmetrical mounting hanger (18) in the two ends, left and right at described crossbeam (3) top.
3. numerical control gantry machining center power according to claim 1 and 2 and burden-alleviating device, is characterized in that: it is right that described Z axis slide block (16) has upper, middle and lower three, and often pair of Z axis slide block (16) is divided into symmetrical two.
4. numerical control gantry machining center power according to claim 1 and burden-alleviating device, it is characterized in that: described bearing (1b) is square frame body, the end face of bearing (1b) and the either flush of brace table (1a), and bearing (1b) and brace table (1a) are cast into one.
5. numerical control gantry machining center power according to claim 1 and burden-alleviating device, it is characterized in that: be provided with the horizontal stripe (21) that two, front and back are parallel to each other in the centre position of described brace table (1a) end face middle front part, the top of these two horizontal stripes (21) is provided with two longitudinal blocks (22) in left and right, described longitudinal block (22) is perpendicular with horizontal stripe (21), the rear and front end of longitudinal block (22) supports fixing by the horizontal stripe (21) of correspondence, and longitudinal block (22) has multiple screw from front to back.
6. numerical control gantry machining center power according to claim 1 and burden-alleviating device, is characterized in that: the two ends up and down of described nitrogen balance cylinder (19) cylinder body are all connected with Y-axis slide (11) by anchor ear.
7. numerical control gantry machining center power according to claim 1 and burden-alleviating device, is characterized in that: described ceiling hold (20) is for "T"-shaped.
CN201520256307.8U 2015-04-24 2015-04-24 Numerical control gantry machining center power and burden-alleviating device Expired - Fee Related CN204700647U (en)

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Application Number Priority Date Filing Date Title
CN201520256307.8U CN204700647U (en) 2015-04-24 2015-04-24 Numerical control gantry machining center power and burden-alleviating device

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Application Number Priority Date Filing Date Title
CN201520256307.8U CN204700647U (en) 2015-04-24 2015-04-24 Numerical control gantry machining center power and burden-alleviating device

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CF01 Termination of patent right due to non-payment of annual fee
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Granted publication date: 20151014

Termination date: 20160424