CN215824582U

CN215824582U - A cutting head buffer stop for laser cutting machine

Info

Publication number: CN215824582U
Application number: CN202121828645.6U
Authority: CN
Inventors: 蒋亚
Original assignee: World Precise Machinery China Co ltd
Current assignee: World Precise Machinery China Co ltd
Priority date: 2021-08-06
Filing date: 2021-08-06
Publication date: 2022-02-15
Anticipated expiration: 2031-08-06

Abstract

The utility model belongs to the technical field of laser cutting, and relates to a cutting head anti-collision device for a laser cutting machine, which comprises a mounting seat, a laser cutting head and an anti-collision mechanism for connecting the mounting seat and the laser cutting head, wherein the anti-collision mechanism comprises a transition plate and a bottom plate which are respectively connected with the mounting seat and the laser cutting head, the transition plate and the bottom plate are connected in a matching way through a positioning assembly, the transition plate is also provided with a sensing assembly for executing a system emergency stop command when the laser cutting head is impacted, and a connecting assembly for preventing the laser cutting head from driving the bottom plate to fall off from the transition plate when the laser cutting head is impacted. The utility model has simple structure, convenient manufacture and general requirements on processing manufacturability, and can realize the quick positioning of the installation of the laser cutting head; meanwhile, when the laser cutting head really collides in all directions, the machine can be quickly stopped to realize anti-collision protection, the overall stability is higher, and the problems that the transition plate is easy to damage and the like do not exist.

Description

A cutting head buffer stop for laser cutting machine

Technical Field

The utility model belongs to the technical field of laser cutting, and particularly relates to a cutting head anti-collision device for a laser cutting machine.

Background

The laser cutting machine is a hot cutting blanking machine tool, the edge of a corner plate cannot be prevented from being warped when the laser cutting machine is used for cutting, or a cut small material workpiece is overturned and protruded under the dual influence of a toothed nail plate and cutting air blowing, and the cutting head is probably collided with the workpiece to damage the cutting head when the situation occurs. Because laser cutting head cost is expensive, it is very necessary to carry out all-round collision avoidance to it for this reason, and all-round cutting head buffer stop commonly used at present mainly two kinds:

the first one is that magnets are arranged on the back of a mounting plate of the cutting head to achieve front and back collision avoidance and magnets are arranged on a connecting plate of a screw rod and a nut seat to achieve upper and lower collision avoidance, and the two magnets resist lateral collision avoidance in the left and right directions together. The device has the defects that: the structure is more complicated, needs 2 sets of magnet structures of ann, does not have stable connection structure simultaneously, and the straightness adjustment that hangs down of cutting head all needs to spend the long time at every turn during installation and debugging.

The second is that the locating pin of installation magnet + various forms realizes all-round location at the cutting head bottom plate back, and this locating pin location fit degree of depth is lighter, and aim at is half drops when the real back that collides of cutting head magnet, and the locating pin can break its fit degree of depth and roll off cutting head transition plate. The device has the defects that: positioning pins (a ball-head cylindrical pin, a self-made chamfer cylindrical pin and the like) in various forms are installed, the positioning pins have higher requirements on the machining precision, the matching depth of the tip of a pin hole is difficult to control, and the pin cannot fall off when the pin is too deep, so that the anti-collision protection of the cutting head fails; too shallow the precision fit positioning of the pin is lost. Meanwhile, the device has limited anti-collision times, and the pin hole matched with the pin tip can be damaged after the device is used for a long time, so that the cutting head transition plate with the pin hole has to be replaced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art, and provides the cutting head anti-collision device for the laser cutting machine, which is simple in structure, stable and reliable, can realize quick positioning and can ensure an anti-collision protection effect.

In order to achieve the purpose, the technical scheme adopted by the utility model is as follows: the utility model provides a cutting head buffer stop for laser cutting machine, includes mount pad, laser cutting head and is used for connecting the anticollision institution of mount pad and laser cutting head, anticollision institution includes cab apron and the bottom plate of crossing that is connected with mount pad and laser cutting head respectively, cross and connect through the locating component cooperation between cab apron and the bottom plate, cross the response subassembly that still is equipped with actuating system emergency stop order when the laser cutting head receives the striking on the cab apron to and avoid the laser cutting head to receive the coupling assembling that drives the bottom plate and drop from crossing the cab apron when striking.

Preferably, the positioning assembly comprises a horizontal positioning piece and a left positioning piece and a right positioning piece.

Preferably, the horizontal positioning piece comprises a horizontal step surface which is arranged on the transition plate and matched with the bottom of the bottom plate.

Preferably, the left positioning part and the right positioning part comprise positioning holes symmetrically arranged on the left side and the right side of the transition plate, bearing steel balls and compression springs for compressing the bearing steel balls in the positioning holes are arranged at positions, corresponding to the positioning holes, of the bottom plate, one ends of the compression springs are connected with the bearing steel balls, and the other ends of the compression springs are fixed on the bottom plate through cover plates.

Preferably, the depth of the positioning hole is smaller than the radius of the bearing steel ball, and the compression spring is vertically arranged between the transition plate and the bottom plate.

Preferably, a plurality of magnets with countersunk holes are uniformly distributed on one side of the bottom plate close to the transition plate.

Preferably, the sensing assembly comprises a mounting groove arranged in the middle of the top of the transition plate and a sensing lamp arranged in the mounting groove and connected with the laser cutting machine through signals.

Preferably, the distance between the induction lamp and the bottom plate is 0.5mm, and the maximum induction distance of the induction lamp is 3 mm.

Preferably, the connecting assembly comprises an extension spring, and two ends of the extension spring are respectively fixed on the transition plate and the bottom plate through screws.

After the technical scheme is adopted, the cutting head anti-collision device for the laser cutting machine, provided by the utility model, has the following beneficial effects:

(1) the transition plate is provided with the step surface matched with the bottom of the bottom plate, so that the rapid positioning of the laser cutting head in the horizontal direction can be realized, the dead weight of the laser cutting head and the bottom plate can be overcome, and the problem that the dead weight is overcome by increasing the number of magnets or increasing the specification of the magnets in the limited space of the bottom plate of the cutting head when the gun lifting speed is improved is solved;

(2) the top of the transition plate is provided with the open type induction lamp mounting groove, so that the induction lamp is convenient to route, smooth and upward, does not need to turn, and is convenient to operate;

(3) the positioning pin has the advantages that the left and right 2 groups of bearing steel balls, the compression spring and the cover plate replace positioning pins in conventional various structural forms, so that the defects of the two structures in the background technology are completely overcome, the structure is simple, the manufacturing is convenient, and the processing technological requirements are reduced;

(4) the bearing steel ball and the compression spring are fixed in the opening of the cutting head bottom plate through the cover plate, bear certain pre-tightening force, and through testing and reasonable calculation of stress, a proper compression spring is selected, so that the compression spring is transmitted to the bearing steel ball and the transition plate with the positioning hole through spring compression under the action of attraction of the magnet, the omnibearing rapid positioning of a spherical surface is realized, and meanwhile, the capability of resisting lateral sliding in a certain range can be borne;

(5) the bearing steel ball and the compression spring are substantially a flexible positioning pin, and the problem that the positioning pin on the traditional cutting head anti-collision device is inserted too deeply and positioned too deeply, so that the cutting head cannot play a role in dislocation buffering after being impacted is solved.

Therefore, the laser cutting head has the advantages of simple structure, convenience in manufacturing and general requirements on processing manufacturability, and can realize quick positioning of the laser cutting head; meanwhile, when the laser cutting head really collides in all directions, the machine can be quickly stopped to realize anti-collision protection, the overall stability is higher, and the problems that the transition plate is easy to damage and the like do not exist.

Drawings

FIG. 1 is a schematic structural view of a cutting head collision prevention device for a laser cutting machine according to the present invention;

FIG. 2 is a partial schematic structural view of a cutting head collision prevention device for a laser cutting machine according to the present invention;

FIG. 3 is a side sectional view A-A of FIG. 2;

FIG. 4 is an enlarged view of a portion of the structure of FIG. 3;

FIG. 5 is a side sectional view taken along line B-B of FIG. 2;

FIG. 6 is a schematic structural view of a transition plate according to the present invention;

fig. 7 is a side sectional view of C-C of fig. 6.

Wherein: the device comprises a mounting seat 1, a transition plate 2, a bottom plate 3, an induction lamp 4, a laser cutting head 5, a mounting groove 6, a positioning hole 7, a step surface 8, an extension spring 9, a cover plate 10, a compression spring 11, a bearing steel ball 12 and a magnet 13 with a counter bore.

Detailed Description

The present invention now will be described more fully hereinafter with reference to the accompanying drawings and detailed description, in which it is to be understood that the embodiments described are merely illustrative of some, but not all embodiments of the utility model. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.

The utility model discloses a cutting head anti-collision device for a laser cutting machine, which comprises a mounting seat 1, a laser cutting head 5 and an anti-collision mechanism for connecting the mounting seat 1 and the laser cutting head 5, wherein the mounting seat 1 is mounted on a Z-axis lifting aluminum profile of a screw rod nut seat and is used for realizing the up-and-down movement of the laser cutting head 5.

Anticollision institution is including crossing cab apron 2 and bottom plate 3 with mount pad 1 and the 5 connection of laser cutting head respectively, crossing four counter bores of cab apron 2 design, install on the mount pad 1 of Z axle aluminium alloy, cross and connect through locating component cooperation between cab apron 2 and the bottom plate 3, cross the response subassembly that still is equipped with actuating system scram order when laser cutting head 5 receives the striking on the cab apron 2 to and avoid laser cutting head 5 to receive the coupling assembling that drives bottom plate 3 and drop from cab apron 2 when striking.

The response subassembly is including setting up mounting groove 6 and the response lamp 4 of setting with laser cutting machine signal connection in mounting groove 6 at the 2 top intermediate positions of cab apron, the distance between response lamp 4 and the bottom plate 3 is 0.5mm, and the biggest inductive distance of response lamp 4 is 3mm, and when bottom plate 3 and response lamp 4 distance exceeded 2.5mm, the response lamp judged the action, and the affirmation is installed and is received the striking at the laser cutting head 5 on the cutting head bottom plate, execution system emergency stop order.

The positioning assembly comprises a horizontal positioning part and a left positioning part and a right positioning part, the horizontal positioning part comprises a horizontal step surface 8 which is arranged on the transition plate 2 and matched with the bottom of the bottom plate 3, the rapid positioning of the bottom plate 3 and the transition plate 2 in the horizontal direction can be realized through the step surface 8, the left positioning part and the right positioning part comprise positioning holes 7 which are symmetrically arranged on the left side and the right side of the transition plate 2, a bearing steel ball 12 and a compression spring 11 which tightly presses the bearing steel ball 12 in the positioning hole 7 are arranged at the position of the bottom plate 3 corresponding to the positioning hole 7, one end of the compression spring 11 is connected with the bearing steel ball 12, the other end is fixed on the bottom plate 3 through a cover plate 10, the compression spring 11 is vertically arranged between the transition plate 2 and the bottom plate 3, during installation, the bottom plate 3 is roughly positioned firstly, then the bearing steel ball 12, the compression spring 11 and the compression spring cover plate 10 are assembled, and the bottom plate is slightly beaten by a mallet or a copper rod cutting head, and continuously checking whether the bottom plate 3 is completely attached to the transition plate 2 by using a 2mm feeler gauge, if the feeler gauge cannot be plugged, the mounting in place is proved, the depth of the positioning hole 7 is smaller than the radius of the bearing steel ball 12, specifically, the radius of the bearing steel ball 12 is 5mm, and the depth of the positioning hole 7 is 4.5mm, because the induction lamp 4 performs an emergency stop action when judging that the depth exceeds 2.5mm, at the moment, the electric judgment time is not calculated theoretically, and the action that the bearing steel ball 12 sinks into the depth by 2mm is delayed, therefore, after the collision of the cutting head generally occurs, the bearing steel ball 12 is not easy to fall off a body, and the laser cutting head 5 after the collision can be rapidly placed in place.

One side that bottom plate 3 is close to cab apron 2 still evenly distributed has a plurality of counterbores magnetite 13 of taking, and is concrete, and 5 groups of counterbores magnetite 13 of taking are installed to this embodiment, and the magnetite is arranged into the quincunx type, only need install 4 groups usually, and then install a set of at center additional when 5 overweight of laser cutting head.

Furthermore, the spring stiffness of the compression spring 11 is preferably about 10N/mm, so that the compression spring 11 is not too small in force and insufficient in centering reliability, and the compression spring 11 is not too tight, so that the too large magnet attraction force is counteracted.

Coupling assembling includes extension spring 9, extension spring 9's both ends are respectively through the fix with screw on cab apron 2 and bottom plate 3, and extension spring 9 bears certain pulling force (pretightning force) after the installation to avoid 5 striking backs of laser cutting head to drop the body and receive bigger damage.

In conclusion, the cutting head anti-collision device for the laser cutting machine, provided by the utility model, adopts the technical scheme of the bearing steel ball, the compression spring and the cover plate, replaces various traditional positioning pins, completely avoids the defects in the existing structure, has the advantages of simple structure, convenience in manufacturing and general requirements on processing manufacturability, and can realize the quick positioning of the installation of the laser cutting head; meanwhile, when the laser cutting head really collides in all directions, the machine can be quickly stopped to realize anti-collision protection, the overall stability is high, the problems that the transition plate is easy to damage and the like do not exist, the market value is high, and the machine is worthy of wide popularization and application.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The utility model provides a cutting head buffer stop for laser cutting machine, includes mount pad (1), laser cutting head (5) and is used for connecting mount pad (1) and the anticollision institution of laser cutting head (5), its characterized in that: anticollision institution is including crossing cab apron (2) and bottom plate (3) be connected with mount pad (1) and laser cutting head (5) respectively, cross and connect through locating component cooperation between cab apron (2) and bottom plate (3), cross and still be equipped with the response subassembly of execution system scram order when laser cutting head (5) receive the striking on cab apron (2) to and drive bottom plate (3) when avoiding laser cutting head (5) to receive the striking and follow the coupling assembling that drops on cab apron (2).

2. The cutting head collision prevention device for the laser cutting machine according to claim 1, characterized in that: the positioning assembly comprises a horizontal positioning piece and a left positioning piece and a right positioning piece.

3. The cutting head collision prevention device for the laser cutting machine according to claim 2, characterized in that: the horizontal positioning piece comprises a horizontal step surface (8) which is arranged on the transition plate (2) and matched with the bottom of the bottom plate (3).

4. The cutting head collision prevention device for the laser cutting machine according to claim 2, characterized in that: the left positioning piece and the right positioning piece comprise positioning holes (7) symmetrically arranged at the left side and the right side of the transition plate (2), the position, corresponding to the positioning holes (7), of the bottom plate (3) is provided with bearing steel balls (12) and compression springs (11) for compressing the bearing steel balls (12) in the positioning holes (7), one ends of the compression springs (11) are connected with the bearing steel balls (12), and the other ends of the compression springs are fixed on the bottom plate (3) through cover plates (10).

5. The cutting head collision prevention device for the laser cutting machine according to claim 4, characterized in that: the depth of the positioning hole (7) is smaller than the radius of the bearing steel ball (12), and the compression spring (11) is vertically arranged between the transition plate (2) and the bottom plate (3).

6. The cutting head collision prevention device for the laser cutting machine according to claim 1, characterized in that: and a plurality of magnets (13) with countersunk holes are uniformly distributed on one side of the bottom plate (3) close to the transition plate (2).

7. The cutting head collision prevention device for the laser cutting machine according to claim 1, characterized in that: the sensing assembly comprises a mounting groove (6) arranged in the middle of the top of the transition plate (2) and a sensing lamp (4) arranged in the mounting groove (6) and connected with a laser cutting machine through signals.

8. The cutting head collision prevention device for the laser cutting machine according to claim 7, characterized in that: the distance between the induction lamp (4) and the bottom plate (3) is 0.5mm, and the maximum induction distance of the induction lamp (4) is 3 mm.

9. The cutting head collision prevention device for the laser cutting machine according to claim 1, characterized in that: the connecting assembly comprises an extension spring (9), and two ends of the extension spring (9) are fixed on the transition plate (2) and the bottom plate (3) through screws respectively.