CN209754318U

CN209754318U - Laser cutting machine with workpiece automatic correction function

Info

Publication number: CN209754318U
Application number: CN201920481157.9U
Authority: CN
Inventors: 罗群; 罗亮
Original assignee: HEFEI SIWEI CNC MACHINERY CO Ltd
Current assignee: HEFEI SIWEI CNC MACHINERY CO Ltd
Priority date: 2019-04-10
Filing date: 2019-04-10
Publication date: 2019-12-10
Anticipated expiration: 2029-04-10

Abstract

The utility model discloses a laser cutting machine with automatic workpiece correction, which comprises a machine tool, wherein a sedimentation rack is arranged on the top surface of the machine tool; the clamping plate type correcting devices are arranged on two sides of the settling rack and are arranged along the length direction of the machine tool, each clamping plate type correcting device comprises a telescopic correcting plate moving horizontally, the moving directions of the correcting plates of the two clamping plate type correcting devices are opposite and face the center of the machine tool, and the length directions of the correcting plates and the machine tool are the same; and the plate type supporting mechanism is arranged between the settlement strokes of the settlement type rack frame, and the plate type supporting mechanism is arranged between adjacent racks of the settlement type rack frame. The utility model discloses an adjust the lathe structure, solved the unable problem that sets up correcting unit of traditional laser cutting machine, just the utility model discloses can accomplish the automatic correction of work piece under the prerequisite that does not harm workpiece surface, the correction process control is simple and quick.

Description

Laser cutting machine with workpiece automatic correction function

Technical Field

The utility model belongs to the technical field of laser cutting machine, in particular to laser cutting machine of work piece automatic correction.

Background

The laser cutting machine focuses laser emitted from a laser into a laser beam with high power density through an optical path system. The laser beam irradiates the surface of the workpiece to make the workpiece reach a melting point or a boiling point, and simultaneously, the high-pressure gas coaxial with the laser beam blows away the molten or gasified metal. And finally, the material is cut along with the movement of the relative position of the light beam and the workpiece, so that the cutting purpose is achieved.

generally, a laser cutting machine is used for cutting a workpiece with a small wall thickness, such as a metal plate or a metal pipe. During the material loading, generally the artifical supplementary material loading, the situation that the work piece slope often can appear, leads to laser cutting machine to appear cutting error when cutting sheet metal and even leads to the waste material.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the problem of the existence of above-mentioned prior art, provide a laser cutting machine of work piece automatic correction.

The utility model discloses a following technical means realizes solving above-mentioned technical problem:

A laser cutting machine with workpiece automatic correction comprises a machine tool, wherein the top surface of the machine tool is provided with: a sinker rack; the clamping plate type correcting device is arranged on two sides of the sinking rack and arranged along the length direction of the machine tool, the clamping plate type correcting device comprises telescopic correcting plates moving horizontally, the moving directions of the correcting plates of the two clamping plate type correcting devices are opposite and face the center of the machine tool, and the length directions of the correcting plates and the machine tool are the same; and the plate type supporting mechanism is arranged between the settlement strokes of the settlement type rack frame, and the plate type supporting mechanism is arranged between adjacent racks of the settlement type rack frame.

Further, the clamping plate type correcting device comprises a driving device fixedly arranged on the edge of the machine tool and used for driving the correcting plate to move horizontally, and the driving device comprises: the servo motors are arranged oppositely, and the two servo motors are arranged in a vertically staggered manner; the screw rod is fixedly connected with a rotor of the servo motor through a coupler; the nut is in threaded fit with the screw rod; a sliding block sleeved with the nut; one end rotates with the sliding block and is connected and the connecting rod of the other end and correction plate sliding connection, servo motor all is provided with lead screw, nut, sliding block and the connecting rod of adaptation, two the centre of connecting rod is rotated through the connecting pin and is connected.

Furthermore, a connecting strip is arranged on the connecting surface of the correction plate and the connecting rod, a waist groove which is through up and down is arranged on the connecting strip, and a sliding rod which is arranged in the waist groove in a sliding manner is arranged at one end, connected with the correction plate, of the connecting rod.

Furthermore, the other end of the screw rod is provided with a rotating seat matched with the screw rod, a bearing coaxial with the screw rod is arranged in the rotating seat, and the other end of the screw rod is arranged in the bearing.

furthermore, still be equipped with the slide opening with lead screw sliding fit on the sliding block.

Furthermore, splint formula correcting unit still includes the protective housing of setting in drive arrangement outside, the side of protective housing is equipped with the breach with the correction board adaptation.

furthermore, plate-type supporting mechanism includes the backup pad and sets up the bull's eye bearing at the backup pad top surface, the both ends fixed connection of backup pad is on the lathe.

further, subside formula rack includes regular tetragonal frame and the parallel rack of just even fixed mounting on the frame, the installation direction of rack is the same with board-like supporting mechanism, the top surface of lathe be equipped with the subsider of subside formula rack adaptation.

Furthermore, a driving cylinder is arranged below the frame, a telescopic rod of the driving cylinder is fixedly connected with the bottom of the frame, and a cylinder seat of the driving cylinder is fixedly installed at the bottom of the machine tool.

The utility model has the advantages that: the utility model discloses an adjust the lathe structure, solved the unable problem that sets up correcting unit of traditional laser cutting machine, and this correcting unit can accomplish the automatic correction of work piece under the prerequisite that does not harm workpiece surface, and correction process control is simple and quick.

Drawings

FIG. 1 is a schematic view of the overall three-dimensional structure of the machine tool of the present invention;

Fig. 2 is a schematic perspective view of the driving device of the present invention;

FIG. 3 is a schematic perspective view of the sliding block of the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 1 at A;

FIG. 5 is an exploded view of the machine tool and the sinker rack of the present invention;

Fig. 6 is a schematic view of the connection between the machine tool and the driving cylinder.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Examples

As shown in fig. 1 and 2, a laser cutting machine for automatically correcting a workpiece comprises a machine tool 10 with a chip collecting groove at the lower part, the top surface of the machine tool 10 is provided with a sinking type rack 20, a clamping plate type correcting device 30 for correcting a workpiece and a plate type supporting mechanism 40 for the workpiece, the clamping plate type correcting device 30 is arranged at two sides of the sinking type rack 20, the clamping plate type correcting device 30 is arranged along the length direction of the machine tool 10, the clamping plate type correcting device 30 comprises a telescopic correcting plate 31 moving horizontally, the moving directions of the correcting plates 31 of the two clamping plate type correcting devices 30 are opposite and face the center of the machine tool 10, the correction plate 31 is oriented in the same direction as the longitudinal direction of the machine tool 10, the plate support mechanism 40 is disposed below the sinker rack 20 before sinking, and the plate type supporting mechanism 40 is arranged above the settled rack 20, and the plate type supporting mechanism 40 is arranged between adjacent racks of the settled rack 20.

The top surface of the machine tool 10 of the conventional laser cutting machine is fixedly provided with a rack for placing a workpiece, and because the machine tool is of a fixed structure, the machine tool is difficult to overcome the structural defects and then is provided with an adjusting mechanism for the workpiece, and the direct installation of the correcting mechanism inevitably causes the workpiece to be scratched on the surface when the rack moves. The utility model discloses a settlement formula rack 20 with the rack setting to the integrated form, through the downstream of control settlement formula rack 20, shift the work piece to the board-like supporting mechanism 40 that the work piece of being convenient for removed, guarantee simultaneously that the surface bar does not receive the damage when the work piece removes, two splint formula correcting unit 30 carry out the centre gripping to the work piece through control correcting plate 31 relative motion, thereby just the work piece with the slope, accomplish and rectify the back, control correcting plate 31 and settlement formula rack 20 reset, can carry out laser cutting work. To sum up, the utility model discloses an adjust lathe mechanism, solved the unable problem that sets up correcting unit of traditional laser cutting machine, and this correcting unit can accomplish the automatic correction of work piece under the prerequisite that does not harm workpiece surface, and correction process control is simple and quick.

in this embodiment, as shown in fig. 2, the clamping plate type correction device 30 includes a driving device fixedly installed at the edge of the machine tool 10 and used for driving the correction plate 31 to move horizontally, the driving device includes two servo motors 33 arranged oppositely, a screw rod 34 fixedly connected with the rotor of the servo motor 33 through a coupler, a nut 35 in threaded fit with the screw rod 34, a sliding block 36 sleeved with the nut 35, and a connecting rod 37 with one end rotatably connected with the sliding block 36 and the other end slidably connected with the correction plate 31, the servo motors 33 are all provided with the screw rod 34, the nut 35, the sliding block 36 and the connecting rod 37 which are adapted, the middle of the two connecting rods 37 is rotatably connected through a connecting pin, and the two servo motors 33 are arranged in a vertically staggered manner.

the driving device is used for driving the correction plate 31 to move horizontally, in the embodiment, a complete control system is formed by arranging the servo motor 33, the screw rod 34, the nut 35, the sliding block 36 and the connecting rod 37, the servo motor 33 drives the screw rod 34 to rotate, the screw rod 34 and the nut 35 form a sliding driving system, the horizontal sliding of the sliding block 36 is converted into the coplanar vertical movement of the correction plate 31 through the connecting rod 37, so that the clamping and correcting functions of the correction plate 31 are realized, and the servo motor 33 controls the extension and retraction of the correction plate 31 through forward rotation and reverse rotation.

as shown in fig. 2, a connecting bar 311 is disposed on a connecting surface of the correction plate 31 and the connecting bar 37, a vertical through waist groove 312 is disposed on the connecting bar 311, and a sliding bar slidably disposed in the waist groove 312 is disposed at one end of the connecting bar 37 connected to the correction plate 31.

The connecting rod 37 converts the horizontal sliding of the sliding block 36 into the coplanar vertical movement of the correction plate 31, and the change of the included angle between the two connecting rods 37 can meet the requirement of the real-time change of the angle of the connecting rod 37 by arranging the connecting strip 311 and the waist groove 312 on the connecting rod 37, and the sliding rod is used for providing the sliding condition and simultaneously ensuring the connection stability.

in addition, as shown in fig. 2, a rotating seat 38 adapted to the screw rod 34 is disposed at the other end of the screw rod 34, a bearing (not shown) coaxial with the screw rod 34 is disposed in the rotating seat 38, and the other end of the screw rod 34 is disposed in the bearing.

The screw rod 34 is a long strip structure, has a certain deflection and is easy to deform, a two-point supporting structure is formed by arranging the rotating seat 38 and the servo motor 33 at the other end, the stability of the screw rod 34 is ensured, the deformation of the screw rod is prevented, and meanwhile, the smoothness of the rotation of the screw rod 34 is ensured by arranging a bearing.

As shown in fig. 3, the sliding block 36 is further provided with a sliding hole 361 slidably engaged with the screw 34, and the screw 34 engaged with the sliding hole 361 is adjacent to the screw 34 engaged with the nut 35. The sliding block 36 is fixedly connected, the sliding block 36 does not have a limiting structure to cause the structure to be unstable when the screw rods 34 rotate, the sliding block 36 is fixed in two dimensions through the two screw rods 34 by arranging the sliding hole 361 matched with the other screw rod 34 on the sliding block 36, and the sliding block 36 can only horizontally move along the screw rods 34, so that the stability of the structure is improved.

As shown in fig. 1, the clamping plate type correction device 30 further includes a protective shell 32 disposed outside the driving device, and a notch (not shown in the figure) adapted to the correction plate 31 is disposed on a side surface of the protective shell 32. The protective housing 32 is used to protect the internal driving device, prevent dust from falling to affect the smoothness of mechanical transmission, and avoid external damage.

In this embodiment, as shown in fig. 4, the plate-type supporting mechanism 40 includes a supporting plate 41 and a bull's eye bearing 42 disposed on the top surface of the supporting plate 41, and both ends of the supporting plate 41 are fixedly connected to the machine tool 10. The width of the supporting plate 41 is smaller than the distance between the two racks, when the sedimentation type rack 20 descends, the supporting plate 41 is used for supporting a workpiece, the bull eye bearing 42 on the supporting plate is used for assisting the workpiece to move, the auxiliary clamping plate type correcting device 30 is used for correcting the workpiece, the friction force of the workpiece to move can be reduced, and meanwhile the surface of the workpiece can be protected.

In this embodiment, as shown in fig. 5, the sinker rack 20 includes a regular quadrilateral frame 21 and racks 22 parallel and uniformly and fixedly mounted on the frame 21, the mounting direction of the racks 22 is the same as that of the plate-type support mechanism 40, and the top surface of the machine tool 10 is provided with a sinker 11 adapted to the sinker rack 20. The sedimentation type rack 20 forms an integral structure through the frame 21, so that the control system can conveniently control the integral up-and-down motion of the rack in the sedimentation tank 11, and meanwhile, the rack 22 can be conveniently and fixedly installed.

As shown in fig. 6, a driving cylinder 23 is arranged below the frame 21, an expansion rod of the driving cylinder 23 is fixedly connected with the bottom of the frame 21, and a cylinder base of the driving cylinder 23 is fixedly mounted at the bottom of the machine tool 10. The driving cylinder 23 is used for providing settlement power for the settlement type rack 20, and the control is simple.

It is noted that, in this document, relational terms such as first and second, and the like, if any, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A laser cutting machine with automatic workpiece correction, comprising a machine tool (10), characterized in that the machine tool (10) is provided with on its top surface:

A sinker rack (20);

The clamping plate type correcting device (30) is used for correcting a workpiece, the clamping plate type correcting device (30) is arranged on two sides of the sinking type rack (20), the clamping plate type correcting device (30) is arranged along the length direction of the machine tool (10), the clamping plate type correcting device (30) comprises a telescopic correcting plate (31) moving horizontally, the moving directions of the correcting plates (31) of the two clamping plate type correcting devices (30) are opposite and face the center of the machine tool (10), and the length directions of the correcting plates (31) and the machine tool (10) are the same;

And the plate type supporting mechanism (40) of the workpiece, wherein the plate type supporting mechanism (40) is arranged between the settlement strokes of the settlement type rack frame (20), and the plate type supporting mechanism (40) is arranged between adjacent racks of the settlement type rack frame (20).

2. The laser cutting machine with automatic workpiece correction according to claim 1, characterized in that the clamping plate type correction device (30) comprises a driving device fixedly arranged at the edge of the machine tool (10) and used for driving the correction plate (31) to move horizontally, and the driving device comprises:

the servo motors (33) are oppositely arranged, and the two servo motors (33) are arranged in a vertically staggered mode;

a screw rod (34) fixedly connected with the rotor of the servo motor (33) through a coupling;

A nut (35) in threaded engagement with the lead screw (34);

A sliding block (36) sleeved with the nut (35);

One end and sliding block (36) rotate and be connected and other end and correcting plate (31) sliding connection's connecting rod (37), servo motor (33) all are provided with lead screw (34), nut (35), sliding block (36) and connecting rod (37) of adaptation, two rotate through the connecting pin in the centre of connecting rod (37) and connect.

3. The laser cutting machine for automatically correcting the workpiece according to claim 2, wherein a connecting strip (311) is arranged on the connecting surface of the correcting plate (31) and the connecting rod (37), a waist groove (312) which penetrates up and down is arranged on the connecting strip (311), and a sliding rod which is slidably arranged in the waist groove (312) is arranged at one end of the connecting rod (37) connected with the correcting plate (31).

4. the laser cutting machine for automatically correcting the workpiece according to claim 2, wherein a rotating seat (38) matched with the screw rod (34) is arranged at the other end of the screw rod (34), a bearing coaxial with the screw rod (34) is arranged in the rotating seat (38), and the other end of the screw rod (34) is arranged in the bearing.

5. The laser cutting machine for automatically correcting workpieces as claimed in claim 2, wherein the sliding block (36) is further provided with a sliding hole (361) which is in sliding fit with the screw rod (34).

6. The laser cutting machine for automatically correcting workpieces as claimed in claim 2, wherein the clamping plate type correcting device (30) further comprises a protective shell (32) arranged outside the driving device, and the side surface of the protective shell (32) is provided with a notch matched with the correcting plate (31).

7. The laser cutting machine for automatically correcting workpieces as claimed in claim 1, wherein the plate-type supporting mechanism (40) comprises a supporting plate (41) and a bull eye bearing (42) arranged on the top surface of the supporting plate (41), and both ends of the supporting plate (41) are fixedly connected to the machine tool (10).

8. the laser cutting machine for automatically correcting workpieces as claimed in claim 1, wherein the sinker rack (20) comprises a regular quadrilateral frame (21) and a rack (22) which is parallel and uniformly and fixedly installed on the frame (21), the rack (22) is installed in the same direction as the plate-type supporting mechanism (40), and the top surface of the machine tool (10) is provided with a sinker groove (11) matched with the sinker rack (20).

9. the laser cutting machine for automatically correcting the workpiece according to claim 8, wherein a driving cylinder (23) is arranged below the frame (21), a telescopic rod of the driving cylinder (23) is fixedly connected with the bottom of the frame (21), and a cylinder seat of the driving cylinder (23) is fixedly arranged at the bottom of the machine tool (10).