CN210081157U - Gantry structure of engraving machine - Google Patents
Gantry structure of engraving machine Download PDFInfo
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- CN210081157U CN210081157U CN201920129700.9U CN201920129700U CN210081157U CN 210081157 U CN210081157 U CN 210081157U CN 201920129700 U CN201920129700 U CN 201920129700U CN 210081157 U CN210081157 U CN 210081157U
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Abstract
The utility model discloses an engraver gantry structure, including gantry structure, the machine tool base, X axial displacement assembly, Y axial displacement assembly, Z axial displacement assembly, the tool magazine, riser and Y axle transmission assembly, gantry structure includes gantry stand and crossbeam, gantry stand installs on the crossbeam, the crossbeam is installed on the machine tool base, Y axial displacement assembly can be installed on the crossbeam along longitudinal sliding, and be connected with Y axle transmission assembly, X axial displacement assembly can be installed on Y axial displacement assembly along lateral sliding, Z axial displacement assembly can be installed on the riser along Z to sliding, the tool magazine sets up the one end at the crossbeam. According to the technical scheme, the gantry stand column and the cross beam are connected in a welding mode, and after stress removal, precision machining is carried out, so that the problem that solid bolts are loosened or plane shafts are not synchronous in driving shafts on two sides are lost due to perpendicularity is solved, bolt connecting pieces are reduced, mechanism resonance generated in the motion process is avoided to the greatest extent, and the motion precision is improved.
Description
Technical Field
The utility model relates to an engraver technical field, in particular to engraver gantry structure.
Background
The mechanical carving machine is a universal mechanical device widely used in wood industry, advertising industry, mould industry and other industries, and can carve different materials such as carpentry boards, density boards, acrylic boards, PVC boards and the like.
Traditional portable quick-witted longmen of longmen, generally adopt two side stands to pass through fastening bolt with the crossbeam and be connected, the advantage lies in the plane axle straightness convenient adjustment that hangs down of lathe, and the machined surface of stand and crossbeam is less, and the cost is more end, but can appear colliding the machine at a high speed or when the two motor drive of longmen axle (two motor drive's of longmen axle structure) are asynchronous, loses the plane axle straightness that hangs down, if the structure of rack and pinion more can cause the meshing line deviation too big, loss transmission precision, excessive wearing and tearing.
In the production, manufacture and use processes of the double-drive gantry machine tool, due to various reasons of unparallel installation of a Y-axis transmission system, assembly errors, different friction resistance and loads in work and the like, a series of serious problems of loss of vertical precision of the machine tool, increase of motion friction resistance, increase of vibration in operation and the like are easily caused.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides an engraver gantry structure, gantry column adopt welded connection with the crossbeam, and the fine finishing after the destressing avoids firm bolt not hard up or the plane axle that the both sides drive shaft desynchronously arouses hangs down straightness and loses, has reduced bolted connection spare, and the maximum mechanism resonance of having avoided the motion process to take place has improved the motion precision.
The utility model provides an engraver gantry structure, including gantry structure, machine tool base, X axial displacement assembly, Y axial displacement assembly, Z axial displacement assembly, tool magazine, riser and Y axle transmission assembly, gantry structure includes gantry stand and crossbeam, gantry column mouting is on the crossbeam, the crossbeam is installed on machine tool base, Y axial displacement assembly can follow longitudinal sliding ground install on the crossbeam and with Y axle transmission assembly connects, X axial displacement assembly can follow lateral sliding ground install on Y axial displacement assembly, Z axial displacement assembly can follow Z and install on the riser to sliding, the tool magazine sets up the one end at the crossbeam.
In the above scheme, the gantry column includes first stand and second stand, first stand set up in the one end below of crossbeam and with the crossbeam is connected, the second stand set up in the crossbeam keep away from the one end of first stand and with the crossbeam is connected, first stand and second stand all are connected with the machine tool base.
In the scheme, the Y-axis transmission assembly comprises a Y1 transmission assembly and a Y2 transmission assembly, the Y1 transmission assembly is connected with the first upright post, and the Y2 transmission assembly is connected with the second upright post; the Y1 transmission assembly comprises a first driving motor, a first transmission rack, a first transmission gear, a first sliding block and a first guide rail, wherein the first transmission rack, the first sliding block, the first guide rail and the first transmission gear are all arranged at the joint of the machine tool base and the first upright post, the first driving motor is respectively connected with the first transmission rack and the first transmission gear, and the first driving motor is arranged on the first upright post; the Y2 transmission assembly comprises a second driving motor, a second transmission rack, a second transmission gear, a second sliding block and a second guide rail, wherein the second transmission rack, the second sliding block, the second guide rail and the second transmission gear are all arranged at the joint of the machine tool base and the second upright post, the second driving motor is respectively connected with the second transmission rack and the second transmission gear, and the second driving motor is arranged on the second upright post.
In the above scheme, the X axial movement assembly includes an X axis drive motor, an X axis motor base, an X axis rack, an X axis drive gear, and an X axis guide rail slider, the X axis drive motor is disposed on the X axis motor base, the X axis motor base is disposed on the vertical plate and perpendicular to the vertical plate, the X axis rack is disposed on the cross beam, the X axis rack is engaged with the X axis drive gear, the X axis drive gear is connected with the X axis drive motor, the cross beam front side is provided with a transverse rail, the X axis guide rail slider is disposed on the vertical plate, and the X axis guide rail slider is slidably connected with the transverse rail.
In the above scheme, the Z axial direction removes the assembly and includes Z axle driving motor, Z axle motor cabinet, supporting seat, Z axle guide rail slide, Z axle slide and ball screw, Z axle driving motor sets up at the riser top and is connected with the riser, Z axle motor cabinet sets up at Z axle driving motor lower extreme, ball screw rotationally installs on the riser along Z to both ends, Z axle driving motor passes through the coupling joint with ball screw, the supporting seat sets up in the coupling joint below, Z axle guide rail slide is connected with the riser, Z axle slide is connected with Z axle guide rail slide.
In the above scheme, the carving machine gantry structure further comprises a numerical control device, a servo system, a PLC, a feedback device and an execution mechanism, wherein the numerical control device is respectively connected with the servo system, the PLC and the feedback device, the servo system is further connected with the execution mechanism, the feedback device is further connected with the execution mechanism, and the PLC is connected with the execution mechanism.
In the above scheme, the servo system further comprises a servo driver, and the servo driver is respectively connected with the numerical control device and the actuating mechanism.
In the above scheme, the feedback device further comprises a servo motor encoder, and the servo motor encoder is respectively connected with the numerical control device and the actuating mechanism.
In the scheme, the cross beam is connected with the gantry upright column through welding.
The utility model has the advantages and the beneficial effects that: the utility model provides an engraver gantry structure, gantry column adopt welded connection with the crossbeam, and the plane axle that avoids firm bolt not hard up or the both sides drive shaft desynchrony to arouse hangs down straightness and loses after the destressing precision finishing, has reduced bolted connection spare, and the maximum mechanism resonance of having avoided the motion process to take place has improved the motion precision.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic view of the structure of the present invention.
Fig. 2 is a left side view structure diagram of the present invention.
Fig. 3 is a schematic diagram of the structure of the present invention.
Fig. 4 is a left side view schematic diagram of the structure of the present invention.
Fig. 5 is a system block diagram of the present invention.
In the figure: 1. machine tool base 2, tool magazine 3, vertical plate 4, gantry column 41 and first column
42. Second upright post 5, cross beam 6, Y1 transmission assembly 61 and first driving motor
62. First transmission rack 63, first transmission gear 64, first sliding block 65 and first guide rail
7. Y2 transmission assembly 71, second driving motor 72 and second transmission rack
73. Second transmission gear 74, second slide block 75, second guide rail 8 and X-axis driving motor
9. X-axis motor base 10, X-axis rack 11, X-axis driving gear 12 and X-axis guide rail sliding block
13. Z-axis driving motor 14, Z-axis motor base 15, supporting seat 16 and Z-axis guide rail sliding plate
17. Z-axis sliding plate 18, ball screw 19, coupling 20, numerical control device 21 and servo system
22. PLC 23, feedback device 24 and actuating mechanism
Detailed Description
The following description will further describe embodiments of the present invention with reference to the accompanying drawings and examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
As shown in fig. 1-5, the utility model relates to an engraver gantry structure, including gantry structure, machine tool base 1, X axial displacement assembly, Y axial displacement assembly, Z axial displacement assembly, tool magazine 2, riser 3 and Y axle transmission assembly, gantry structure includes longmen stand 4 and crossbeam 5, longmen stand 4 installs on crossbeam 5, crossbeam 5 passes through welded connection with longmen stand 4, crossbeam 5 installs on machine tool base 1, Y axial displacement assembly can be installed on crossbeam 5 along longitudinal sliding, and be connected with Y axle transmission assembly, X axial displacement assembly can be installed on Y axial displacement assembly along lateral sliding, Z axial displacement assembly can be installed on riser 3 along Z to sliding, tool magazine 2 sets up the one end at crossbeam 5.
Specifically, the gantry column 4 comprises a first column 41 and a second column 42, the first column 41 is arranged below one end of the cross beam 5 and connected with the cross beam 5, the second column 42 is arranged at one end of the cross beam 5 far away from the first column 41 and connected with the cross beam 5, and the first column 41 and the second column 42 are both connected with the machine tool base 1.
The first upright 41 and the cross beam 5 are fixed by welding, and the second upright 42 and the cross beam 5 are fixed by welding.
Furthermore, the Y axis is driven by double motors and is synchronously controlled, and the Y axis transmission assembly comprises two sets of transmission assemblies, wherein the Y axis transmission assembly comprises a Y1 transmission assembly 6 and a Y2 transmission assembly 7 which are distributed on the left side and the right side of the cross beam 5, the Y1 transmission assembly 6 is connected with the first upright post 41, and the Y2 transmission assembly 7 is connected with the second upright post 42; the Y1 transmission assembly 6 comprises a first driving motor 61, a first transmission rack 62, a first transmission gear 63, a first sliding block 64 and a first guide rail 65, wherein the first guide rail 65 and the first sliding block 64 are connected with the first upright post 41 through bolts, the first transmission rack 62, the first sliding block 64, the first guide rail 65 and the first transmission gear 63 are all arranged at the joint of the machine tool base 1 and the first upright post 41, the first driving motor 61 is respectively connected with the first transmission rack 62 and the first transmission gear 63, and the first driving motor 61 is arranged on the first upright post 41; the Y2 transmission assembly 7 includes a second driving motor 71, a second transmission rack 72, a second transmission gear 73, a second slider 74 and a second guide rail 75, the second guide rail 75 and the second slider 74 are connected with the second upright post 42 through bolts, the second transmission rack 72, the second slider 74, the second guide rail 75 and the second transmission gear 73 are all installed at the connection position of the machine tool base 1 and the second upright post 42, the second driving motor 71 is respectively connected with the second transmission rack 72 and the second transmission gear 73, and the second driving motor 71 is installed on the second upright post 42.
The installation reference surface of the sliding block matched with the guide rails on the left side and the right side of the cross beam 5 is processed by one-time clamping and positioning, and is different from the traditional single-side stand column for independent processing, so that processing errors and installation errors are avoided to the maximum extent, the flatness of the reference surface of the sliding block is well ensured, the balance of the bearing capacity of each sliding block can be ensured by good flatness, the service life of the linear guide rail is prolonged, and mechanical vibration and the motion precision of a machine tool can be reduced.
When the installation reference surface of the sliding block and the motor base is machined, the perpendicularity reference surface parallel to the axis of the Y axis is machined at the same time, and the perpendicularity of the XY axis is guaranteed through machining precision. The sliding block and the motor base of the driving motor are directly attached to the reference surface in the assembling process, after the measurement is qualified, the other side of the sliding block is jacked by the jacking block, and the sliding block is positioned by the taper pin, so that the verticality cannot be lost even if the machine tool is collided at a high speed or the motors on the two sides are asynchronous.
The gantry is supported and guided by the linear guide rails on two sides and the sliding block, and is in reciprocating linear motion along the Y-axis direction through the meshing of the gear and the rack, and the driving motor mounting seat and the sliding block are mounted on the same reference.
Further, X axial displacement assembly includes X axle driving motor 8, X axle motor cabinet 9, X axle rack 10, X axle drive gear 11, X axle guide rail slider 12, X axle driving motor 8 sets up on X axle motor cabinet 9, X axle motor cabinet 9 sets up on riser 3, and with riser 3 mutually perpendicular, X axle rack 10 sets up on crossbeam 5, X axle rack 10 and X axle drive gear 11 mesh, X axle drive gear 11 is connected with X axle driving motor 8, crossbeam 5 front side is equipped with horizontal track, X axle guide rail slider 12 sets up on riser 3, X axle guide rail slider 12 and horizontal track sliding connection.
The X shaft is driven by a single motor, the motion principle and the driving mode are the same as those of the Y shaft, the linear guide rail and the rack transmission part to which the X shaft belongs use a gantry beam as an installation bearing base, the machining of an installation reference surface is conducted together with the machining of a Y shaft sliding block and a motor base, all machining surfaces of the gantry are machined and finished in one-time clamping and positioning, and the precision loss caused by secondary clamping is avoided.
Further, Z axial displacement assembly includes Z axle driving motor 13, Z axle motor cabinet 14, supporting seat 15, Z axle guide rail slide 16, Z axle slide 17 and ball screw 18, Z axle driving motor 13 sets up at 3 tops of riser and is connected with riser 3, Z axle motor cabinet 14 sets up at Z axle driving motor 13 lower extreme, ball screw 18 is rotationally installed on riser 3 along Z to both ends, Z axle driving motor 13 passes through shaft coupling 19 with ball screw 18 and is connected, supporting seat 15 sets up in shaft coupling 19 below, Z axle guide rail slide 16 is connected with riser 3, Z axle slide 17 is connected with Z axle guide rail slide 16.
Further, the gantry structure of the engraving machine further comprises a numerical control device 20, a servo system 21, a PLC 22, a feedback device 23 and an execution mechanism 24, wherein the numerical control device 20 is respectively connected with the servo system 21, the PLC 22 and the feedback device 23, the servo system 21 is further connected with the execution mechanism 24, the feedback device 23 is further connected with the execution mechanism 24, and the PLC 22 is connected with the execution mechanism 24.
Specifically, the servo system 21 further includes a servo driver, and the servo driver is respectively connected to the numerical control device 20 and the actuator 24.
Specifically, the feedback device 23 further includes a servo motor encoder, and the servo motor encoder is respectively connected to the numerical control device 20 and the actuator 24.
The utility model discloses a theory of operation:
(1) inputting the programmed machining program to the numerical control device 20;
(2) after the digital control device 20 processes the received signals, the processing results are distributed in the form of pulse signals: firstly, sending out execution commands such as feeding to a servo driver of the feeding servo system 21, and secondly, sending instruction signals to the PLC 22;
(3) after receiving the instruction signal, the PLC 22 immediately controls the machine tool main body to immediately execute the instructions through the execution mechanism 24, and feeds back the execution condition of the machine tool main body to the numerical control device 20 in real time;
(4) after receiving a feeding execution command, a servo system 21 (servo driver) immediately drives each coordinate axis servo motor of the machine tool main body to execute a rotation action, performs speed reduction through a speed reducer and then transmits the rotation action to a gear to accurately perform displacement, controls a cutter to rotate and cut materials through a main shaft to complete the processing of a workpiece, and can complete the three-axis linkage of an X axis, a Y axis and a Z axis;
(5) during the displacement of each coordinate axis, the detection feedback device 23 (servo motor encoder) rapidly feeds back the measured value of the displacement to the numerical control device 20 for comparison with the command value, and then sends a compensation execution command to the servo system 21 at a very fast speed until the measured value is matched with the command value;
(6) in the displacement process of each coordinate axis, if the phenomenon of 'overtravel' occurs, the servo system 21 sends an 'alarm' signal to the numerical control device 20, the numerical control device 20 sends a machining stopping signal and waits for maintenance, and if the 'alarm' condition in other preset ranges occurs, the system also carries out the same treatment.
The utility model has the advantages and beneficial effect:
the utility model discloses an integrative welding formula longmen, the tempering stress relief after the welding is accomplished, machine tooling is with a clamping location post processing out all machined surfaces, avoids the error that the secondary clamping brought. The rigidity of the gantry is guaranteed to the greatest extent while the dead weight is reduced. The welding has reduced the bolt coupling spare, reduces the problem that assembly error and accessory's machining precision brought, and from rigidity and destructive collision prevention machine also than traditional disconnect-type stand gantry movable machine tool improve a lot.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The gantry structure of the engraving machine is characterized by comprising a gantry structure, a machine tool base, an X axial movement assembly, a Y axial movement assembly, a Z axial movement assembly, a tool magazine, a vertical plate and a Y axial transmission assembly, wherein the gantry structure comprises a gantry upright post and a cross beam, the gantry upright post is installed on the cross beam, the cross beam is installed on the machine tool base, the Y axial movement assembly can be installed on the cross beam in a longitudinal sliding mode and is connected with the Y axial transmission assembly, the X axial movement assembly can be installed on the Y axial movement assembly in a transverse sliding mode, the Z axial movement assembly can be installed on the vertical plate in a Z-direction sliding mode, and the tool magazine is arranged at one end of the cross beam.
2. The gantry structure of claim 1, wherein the gantry column comprises a first column and a second column, the first column is disposed below one end of the cross beam and connected to the cross beam, the second column is disposed at one end of the cross beam away from the first column and connected to the cross beam, and the first column and the second column are both connected to the machine base.
3. The engraving machine gantry structure of claim 2, wherein the Y-axis transmission assembly comprises a Y1 transmission assembly and a Y2 transmission assembly, the Y1 transmission assembly is connected with the first upright post, and the Y2 transmission assembly is connected with the second upright post; the Y1 transmission assembly comprises a first driving motor, a first transmission rack, a first transmission gear, a first sliding block and a first guide rail, wherein the first transmission rack, the first sliding block, the first guide rail and the first transmission gear are all arranged at the joint of the machine tool base and the first upright post, the first driving motor is respectively connected with the first transmission rack and the first transmission gear, and the first driving motor is arranged on the first upright post; the Y2 transmission assembly comprises a second driving motor, a second transmission rack, a second transmission gear, a second sliding block and a second guide rail, wherein the second transmission rack, the second sliding block, the second guide rail and the second transmission gear are all arranged at the joint of the machine tool base and the second upright post, the second driving motor is respectively connected with the second transmission rack and the second transmission gear, and the second driving motor is arranged on the second upright post.
4. The gantry structure of claim 1, wherein the X-axis moving assembly comprises an X-axis driving motor, an X-axis motor base, an X-axis rack, an X-axis driving gear, and an X-axis guide rail slider, the X-axis driving motor is disposed on the X-axis motor base, the X-axis motor base is disposed on the vertical plate and perpendicular to the vertical plate, the X-axis rack is disposed on the cross beam, the X-axis rack is engaged with the X-axis driving gear, the X-axis driving gear is connected with the X-axis driving motor, the cross beam is provided with a transverse rail at the front side, the X-axis guide rail slider is disposed on the vertical plate, and the X-axis guide rail slider is slidably connected with the transverse rail.
5. The gantry structure of claim 1, wherein the Z-axis moving assembly comprises a Z-axis driving motor, a Z-axis motor base, a supporting base, a Z-axis guide sliding plate, a Z-axis sliding plate and a ball screw, the Z-axis driving motor is disposed on the top of the vertical plate and connected to the vertical plate, the Z-axis motor base is disposed at the lower end of the Z-axis driving motor, the ball screw is rotatably mounted on the vertical plate along the Z-direction, the Z-axis driving motor and the ball screw are connected through a coupling, the supporting base is disposed below the coupling, the Z-axis guide sliding plate is connected to the vertical plate, and the Z-axis sliding plate is connected to the Z-axis guide sliding plate.
6. The gantry structure of claim 1, further comprising a numerical control device, a servo system, a PLC, a feedback device and an actuator, wherein the numerical control device is connected to the servo system, the PLC and the feedback device, the servo system is further connected to the actuator, the feedback device is further connected to the actuator, and the PLC is connected to the actuator.
7. The gantry structure of claim 6, wherein said servo system further comprises a servo driver, said servo driver is connected to said numerical control device and said actuator, respectively.
8. The gantry structure of claim 6, wherein the feedback device further comprises a servo motor encoder, and the servo motor encoder is respectively connected with the numerical control device and the actuator.
9. The engraver gantry structure of claim 1, wherein the beam is connected to the gantry column by welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920129700.9U CN210081157U (en) | 2019-01-25 | 2019-01-25 | Gantry structure of engraving machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920129700.9U CN210081157U (en) | 2019-01-25 | 2019-01-25 | Gantry structure of engraving machine |
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| CN210081157U true CN210081157U (en) | 2020-02-18 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112059326A (en) * | 2020-09-30 | 2020-12-11 | 合肥福春机械有限公司 | Automatic panel tapping machine based on laser positioning |
| CN112077398A (en) * | 2020-09-30 | 2020-12-15 | 合肥福春机械有限公司 | Automatic tapping machine of panel based on vision positioning |
| CN113021052A (en) * | 2021-03-29 | 2021-06-25 | 宁波市凯博数控机械有限公司 | Large-scale rack and pinion transmission formula digit control machine tool |
-
2019
- 2019-01-25 CN CN201920129700.9U patent/CN210081157U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112059326A (en) * | 2020-09-30 | 2020-12-11 | 合肥福春机械有限公司 | Automatic panel tapping machine based on laser positioning |
| CN112077398A (en) * | 2020-09-30 | 2020-12-15 | 合肥福春机械有限公司 | Automatic tapping machine of panel based on vision positioning |
| CN113021052A (en) * | 2021-03-29 | 2021-06-25 | 宁波市凯博数控机械有限公司 | Large-scale rack and pinion transmission formula digit control machine tool |
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