CN217045066U

CN217045066U - Lifting mechanism and laser cutting machine

Info

Publication number: CN217045066U
Application number: CN202220340936.9U
Authority: CN
Inventors: 游松; 颜春英; 杨海杰
Original assignee: Shenzhen Dne Laser Science And Technology Co ltd
Current assignee: Baichao Shenzhen Laser Technology Co ltd
Priority date: 2022-02-18
Filing date: 2022-02-18
Publication date: 2022-07-26
Anticipated expiration: 2032-02-18

Abstract

The utility model relates to a laser cutting technical field provides an elevating system and laser cutting machine, and this elevating system includes guide assembly and lifting unit. The guide assembly comprises a guide base and a guide frame, and the guide frame comprises two main guide plates and two auxiliary guide plates which are arranged at intervals; the lifting assembly comprises an objective table, a pushing piece and a guide wheel assembly, the guide wheel assembly comprises a first guide wheel abutted to the main guide plate and two second guide wheels clamped on two opposite sides of the auxiliary guide plate, and the first guide wheel and the second guide wheels are arranged on the objective table. The impeller provides the power supply, and two second leading wheel clamps locate corresponding vice deflector, and first leading wheel sliding connection is in main deflector for the objective table can slide in perpendicular to direction base place plane steadily, and whole lift process is more stable promptly, reduces the damage to power unit, improves its life.

Description

Lifting mechanism and laser cutting machine

Technical Field

The utility model relates to a laser cutting technical field especially provides an elevating system and have this elevating system's laser cutting machine.

Background

In the technical field of laser cutting, a vertical lifting exchange workbench is one of important components of a laser cutting machine, and the laser cutting machine with the vertical lifting exchange workbench can adapt to higher power.

At present, a vertical lifting mechanism comprises a power device and a guide device, wherein the power device provides lifting power within a certain range, and the guide device ensures that a workbench is lifted stably.

However, most of the existing guiding devices adopt a linear bearing and a guide post, or adopt parallel sliding guide grooves with different sizes for guiding, and due to production errors, assembly accuracy, stress problems in the lifting process and the like, the phenomenon that the workbench is unstable in the lifting process due to clamping and the like occurs, and then the power device is rocked.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an elevating system aims at solving current laser cutting machine's elevating system and easily appears the problem of vibration at the lift in-process.

In order to achieve the purpose, the utility model adopts the technical proposal that:

in a first aspect, an embodiment of the present invention provides an elevating mechanism for realizing the ascending and descending of a laser in a vertical direction, including:

the guide assembly comprises a guide base and a guide frame vertically arranged on the guide base, and the guide frame comprises two main guide plates arranged at intervals and auxiliary guide plates arranged on the opposite outer sides of the corresponding main guide plates;

the lifting assembly comprises an object stage, a pushing piece and a guide wheel set, the object stage is arranged on the guide frame and slides in the vertical direction relative to the guide frame, the pushing piece is arranged on the guide base and is used for pushing the object stage to move, the guide wheel set is arranged on the object stage, the guide wheel set comprises a first guide wheel abutting against the main guide plate and two second guide wheels clamped on two opposite sides of the auxiliary guide plate, and the first guide wheel and the second guide wheels are arranged on the object stage.

The utility model has the advantages that: the utility model provides an elevating system, its working process as follows: the impeller of the lifting assembly provides a power source to lift and slide the objective table in the vertical direction relative to the guide frame, wherein two second guide wheels of the guide wheel set are clamped on the corresponding auxiliary guide plates, so that the objective table is not deviated in the X direction parallel to the plane of the guide base, and the first guide wheels of the guide wheel set are connected to the main guide plates in a sliding manner, so that the objective table is not deviated in the Y direction parallel to the plane of the guide base, therefore, the objective table is not deviated in the plane parallel to the plane of the guide base, so that the objective table can stably slide in the plane perpendicular to the guide base, namely, the whole lifting process is more stable, the damage to the power mechanism is reduced, and the service life of the objective table is prolonged.

In one embodiment, the object stage includes an object main plate disposed perpendicular to the guide base and an object side plate disposed on the object main plate, the first guide wheel is disposed on the object main plate, and the second guide wheel is disposed on the object side plate.

In one embodiment, the object stage further includes an object top plate disposed on the object main plate, the object top plate is located between the two object side plates, the fixed portion of the pushing member is disposed on the guiding base, and the movable portion of the pushing member abuts against the object top plate.

In one embodiment, the movable part of the pushing member is in spherical contact with the carrying top plate, and/or the fixed part of the pushing member is in spherical contact with the guide bottom plate.

In one embodiment, the object stage further includes a protruding arm disposed on the object main board, the guide frame further includes a guide top board disposed between the two main guide boards, and a projection of the protruding arm in the vertical direction falls into a projection of the guide top board in the vertical direction.

In one embodiment, the object stage further comprises a limiting adjusting piece arranged on the protruding arm, and the limiting adjusting piece is used for adjusting the distance between the protruding arm and the guide top plate.

In one embodiment, the limiting adjusting part is a limiting screw, a screw rod of the limiting screw is in threaded connection with the protruding arm, and a nut of the limiting screw is used for abutting against the guide top plate.

In one embodiment, the lifting mechanism further comprises a base, and the guide base is arranged on the base.

In one embodiment, a position adjusting structure is arranged on the base and used for limiting the arrangement position of the guide base on the base.

In a second aspect, an embodiment of the present invention provides a laser cutting machine, including the above-mentioned lifting mechanism.

The utility model has the advantages that: the utility model provides a laser cutting machine, on the basis that has above-mentioned elevating system, this laser cutting machine is when going up and down the operation, and is more steady.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a lifting mechanism provided in an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a guide assembly of a lifting mechanism according to an embodiment of the present invention;

fig. 3 is a front view of the lifting mechanism provided by the embodiment of the present invention in an initial state;

fig. 4 is a top view of the lifting mechanism provided in the embodiment of the present invention in an initial state;

fig. 5 is a schematic structural view of an object stage of the lifting mechanism according to an embodiment of the present invention;

fig. 6 is a front view of the lifting mechanism in a lifted state according to the embodiment of the present invention.

Wherein, in the figures, the various reference numbers:

100. a lifting mechanism;

10. a guide assembly; 11. a guide base; 12. a guide frame; 121. a main guide plate; 122. a sub guide plate; 123. a guide top plate;

20. a lifting assembly; 21. an object stage; 22. a pusher member; 23. a guide wheel set; 231. a first guide wheel; 232. a second guide wheel; 211. a loading main board; 212. a loading side plate; 213. a carrier top plate; 214. a protruding arm; 215. a limit adjusting part;

30. a base; 31. a position adjusting structure.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary intended for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

Referring to fig. 1, fig. 2, fig. 3 and fig. 6, a lifting mechanism 100 according to an embodiment of the present invention is used for realizing the lifting of a laser in a vertical direction. The lifting action of the laser can be realized.

Specifically, the lifting mechanism 100 includes a guide assembly 10 and a lifting assembly 20. The guide assembly 10 includes a guide base 11 and a guide frame 12 erected on the guide base 11, and the guide frame 12 includes two main guide plates 121 arranged at an interval and an auxiliary guide plate 122 arranged on the opposite outer sides of the corresponding main guide plates 121. Here, the guide base 11 serves as a fixed support, and the guide frame 12 serves as a guide. The main guide plate 121 and the sub guide plate 122 in the guide frame 12 are disposed at an angle, and preferably, each sub guide plate 122 is disposed perpendicular to the corresponding main guide plate 121.

The lifting assembly 20 includes an object stage 21 disposed on the guide frame 12 and sliding in a vertical direction relative to the guide frame 12, a pushing member 22 disposed on the guide base 11 and used for pushing the object stage 21 to move, and a guide wheel set 23 disposed on the object stage 21. The guide wheel assembly 23 includes a first guide wheel 231 abutting against the main guide plate 121 and two second guide wheels 232 interposed between opposite sides of the sub guide plate 122, and the first guide wheel 231 and each of the second guide wheels 232 are disposed on the stage 21. Here, the laser is mounted on a stage 21. It can be understood that the number of the second guide wheels 232 is two, at least four, that is, one secondary guide plate 122 corresponds to two second guide wheels 232, preferably, two second guide wheels 232 may be disposed on two opposite sides of the same secondary guide plate 122 in parallel, that is, four second guide wheels 232 are disposed on the same secondary guide plate 122, so as to improve the reliability of the lifting movement of the object stage 21, and of course, the number of the second guide wheels 232 may also be increased, which is not limited herein. The first guide wheel 231 abuts against the main guide plate 121 to satisfy the stress requirement in the other direction. Alternatively, when each sub guide plate 122 is disposed perpendicular to the corresponding main guide plate 121, the stage 21 slides stably in a plane parallel to the guide base 11. That is, the stage 21 is not displaced in the X direction parallel to the plane of the guide base 11, and the stage 21 is not displaced in the Y direction parallel to the plane of the guide base 11, so that the stage 21 can smoothly slide in the plane perpendicular to the plane of the guide base 11. Of course, the deviation is not limited to the X direction and the Y direction of the plane, and the included angle between the main guide plate 121 and the sub guide plate 122 is taken as the reference.

The utility model provides an elevating system 100, its working process is as follows: the pushing member 22 of the lifting assembly 20 provides a power source to lift and slide the object stage 21 relative to the guide frame 12 in the vertical direction, wherein the two second guide wheels 232 of the guide wheel set 23 are clamped on the corresponding auxiliary guide plates 122, so that the object stage 21 is not deviated in the X direction parallel to the plane of the guide base 11, and the first guide wheels 231 of the guide wheel set 23 are slidably connected to the main guide plates 121, so that the object stage 21 is not deviated in the Y direction parallel to the plane of the guide base 11, and thus, the object stage 21 is not deviated in the plane parallel to the guide base 11, and thus, the object stage can smoothly slide in the plane perpendicular to the plane of the guide base 11, i.e., the whole lifting process is more stable, damage to the power mechanism is reduced, and the service life of the power mechanism is prolonged.

Referring to fig. 1, 3, 4 and 5, in one embodiment, the carrier 21 includes a carrier main plate 211 disposed perpendicular to the guide base 11 and a carrier side plate 212 disposed on the carrier main plate 211, the first guide wheel 231 is disposed on the carrier main plate 211, and the second guide wheel 232 is disposed on the carrier side plate 212. Here, the object carrying main plate 211 is located on the same side of the two main guide plates 121, the object carrying side plate 212 corresponds to the sub-guide plate 122, and the laser device is mounted on a side of the object carrying main body away from the main guide plates 121, so that when the whole object carrying table 21 is vertically lifted relative to the guide frame 12, the first guide wheels 231 provided on the object carrying main plate 211 abut against the main guide plates, and the second guide wheels 232 provided on the object carrying side plate 212 abut against the opposite sides of the sub-guide plate 122, thereby stabilizing the object carrying table 21 during the lifting process.

Preferably, as shown in fig. 1 and 5, the carrier main plate 211 is located on the same side of the two main guide plates 121, and the plane of the two main guide plates 121 is perpendicular to the plane of the carrier main plate 211, and the plane of the carrier side plate 212 is also perpendicular to the plane of the sub-guide plate 122, so that the carrier 21 is not biased in the X direction parallel to the plane of the guide base 11, i.e., in the horizontal direction tangential to the first guide wheel 231, and the carrier 21 is not biased in the Y direction parallel to the plane of the guide base 11, i.e., in the horizontal direction tangential to the second guide wheel 232, so that the carrier 21 can slide smoothly in the plane perpendicular to the guide base 11.

Referring to fig. 1, fig. 3, fig. 4 and fig. 5, in an embodiment, the object stage 21 further includes an object carrying top plate 213 disposed on the object carrying main plate 211, the object carrying top plate 213 is located between the two object carrying side plates 212, the fixed portion of the pushing member 22 is disposed on the guiding base 11, and the movable portion of the pushing member 22 abuts against the object carrying top plate 213. It will be appreciated that the pusher 22 consists of a fixed part and a movable part, the movable part being movable relative to the fixed part. For example, the pusher 22 is an air cylinder, the fixed portion is a cylinder body of the air cylinder, and the movable portion is a rod of the air cylinder, and the rod can extend and contract with respect to the cylinder body to push the carrier top plate 213, so that the carrier table 21 as a whole can be raised and lowered with respect to the guide frame 12. Alternatively, the pushing member 22 may also be a screw rod mechanism, the fixed portion is a screw rod main body of the screw rod mechanism, the movable portion is a nut in threaded connection with the screw rod main body, and the nut pushes to drive the carrying top plate 213 to move relative to the guide frame 12.

In one embodiment, the movable portion of pusher 22 is in spherical contact with carrier top plate 213. It will be appreciated that the spherical contact is similar to a hinged connection to ensure that the connection between the movable part of the pusher member 22 and the carrier top plate 213 is a soft connection to avoid hard contact between the fixed and movable parts of the pusher member 22. For example, when the pushing member 22 is an air cylinder, the fixed portion is a cylinder body, the movable portion is a push rod, and one end of the push rod away from the cylinder body is in spherical contact with the object carrying top plate 213, that is, a certain moving distance exists between the push rod and the object carrying top plate 213, so as to avoid the phenomenon of "cylinder holding" caused by hard contact between the push rod and the cylinder body when the pushing member is suddenly started or stopped, i.e., the service life of the air cylinder can be prolonged.

Alternatively, in other embodiments, the movable part of the pushing member 22 is directly connected to the carrier top plate 213 through a hinge, so that the hard contact between the fixed part and the movable part of the pushing member 22 can also be avoided.

Similarly, the fixing part of the pushing element 22 is in spherical contact with the guide base 11. Likewise, the spherical contact is similar to a hinged connection, so as to ensure that the connection between the fixed part of the pushing member 22 and the guide base 11 is a soft connection, and also to avoid hard contact between the fixed part and the movable part of the pushing member 22.

Referring to fig. 3 and 6, in an embodiment, the object stage 21 further includes a protruding arm 214 disposed on the object main plate 211, the guiding frame 12 further includes a guiding top plate 123 disposed between the two main guiding plates 121, and a projection of the protruding arm 214 in a vertical direction falls on the guiding top plate 123. It can be understood that, when the object stage 21 slides in the vertical direction relative to the guiding frame 12 under the driving action of the pushing member 22, the protruding arm 214 abuts against the guiding top plate 123 of the guiding frame 12 at the upward limit position, so as to limit the maximum sliding distance of the object stage 21 relative to the guiding frame 12 in the vertical direction. Here, the projecting arm 214 is not limited in its configuration, and may be configured such that its projection falls within the projection of the guide top plate 123 in the vertical direction. For example, the protruding arm 214 includes a connecting portion protruding from the carrying main board 211 and a top portion provided on the connecting portion, the connecting portion extends along the vertical direction, and the projection of the connecting portion in the vertical direction is not in the projection of the guide top board 123, and the projection of the top portion in the vertical direction falls in the projection of the guide top board 123, so that when the relative sliding occurs, the connecting portion does not contact with the guide top board 123, and the top portion abuts against the guide top board 123 at the upper limit position to limit the entire carrying platform 21 to continue to slide upwards.

Referring to fig. 3 and 6, in an embodiment, the object stage 21 further includes a limit adjusting member 215 disposed on the protruding arm 214, and the limit adjusting member 215 is used for adjusting a distance between the protruding arm 214 and the guide top plate 123. It will be appreciated that the spacing adjustment member 215 may be divided into a structure in which its length is adjustable and a structure in which the connection with the projecting arm 214 is adjustable.

For example, when the limiting adjustment member 215 is a structure with adjustable length, that is, it may be a telescopic cylinder or the like, the whole length can be extended and retracted, so as to adjust the distance between the protruding arm 214 and the guide top plate 123, and further adjust the upper limit position of the object stage 21 in the vertical direction relative to the guide frame 12. For example, the cylinder body of the telescopic cylinder is fixed on the projecting arm 214, the push rod of the telescopic cylinder is used for abutting against the guide top plate 123 of the guide frame 12, the extending stroke of the push rod relative to the cylinder body is the adjusting range of the object stage 21 relative to the guide frame 12 in the vertical direction, and meanwhile, in order to achieve precise adjustment, a scale can be arranged on the push rod.

Or, for example, when the spacing adjusting element 215 is connected to the protruding arm 214 in an adjustable manner, that is, it may be an adjusting screw, and a threaded hole adapted to the adjusting screw is formed in the protruding arm 214, so that the height of the adjusting screw in the vertical direction on the protruding arm 214 can be changed by adapting to the threaded hole, and similarly, the distance between the object stage 21 and the guide frame 12 in the vertical direction can also be adjusted.

Specifically, referring to fig. 3 and 6, the limiting adjustment member 215 is a limiting screw, a screw of the limiting screw is threadedly connected to the protruding arm 214, and a nut of the limiting screw is used for abutting against the guide top plate 123.

Referring to fig. 1, 3 and 4, in one embodiment, the lifting mechanism 100 further includes a base 30, and the guide base 11 is disposed on the base 30. It will be appreciated that the base 30 serves to hold and restrain the guide frame 12 to ensure stability of the guide frame 12 during sliding movement relative to the object table 21. Specifically, the guide base 11 of the guide frame 12 is connected to the base 30 by a fastener such as a screw.

Referring to fig. 1, fig. 3 and fig. 4, in an embodiment, a position adjusting structure 31 is disposed on the base 30, and the position adjusting structure 31 is used for limiting a position of the guide base 11 on the base 30. It is understood that the position adjusting structure 31 is disposed on the periphery of the circumferential sidewall of the guide base 11, and limits the position of the guide base 11 on the base 30 by a direct or indirect connection manner.

Illustratively, the position adjusting structure 31 is a block body, which is slidably connected to the base 30 and can move toward or away from the guide base 11, so as to abut against and limit a circumferential side wall of the guide base 11.

Alternatively, the position adjustment structure 31 is exemplarily an adjustment screw, a mounting frame is provided on the base 30, the adjustment screw is screwed into the mounting frame, and a screw rod of the adjustment screw penetrates the mounting frame and protrudes toward the circumferential side wall of the guide base 11. When the adjusting screw is screwed relative to the mounting frame, the screw rod of the adjusting screw moves towards or away from the guide base 11 so as to meet the requirement of abutting limit.

The embodiment of the utility model provides a laser cutting machine, including foretell elevating system 100.

The utility model provides a laser cutting machine, on the basis that has above-mentioned elevating system 100, this laser cutting machine is when going up and down the operation, and is more steady.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A lifting mechanism for realizing the lifting of a laser in the vertical direction is characterized by comprising:

2. The lift mechanism of claim 1, wherein: the objective table comprises an object carrying main plate and an object carrying side plate, wherein the object carrying main plate is perpendicular to the guide base, the object carrying side plate is arranged on the object carrying main plate, the first guide wheel is arranged on the object carrying main plate, and the second guide wheel is arranged on the object carrying side plate.

3. The lift mechanism of claim 2, wherein: the object carrying table further comprises an object carrying top plate arranged on the object carrying main plate, the object carrying top plate is located between the two object carrying side plates, the fixed portion of the pushing piece is arranged on the guide base, and the movable portion of the pushing piece abuts against the object carrying top plate.

4. The lift mechanism of claim 3, wherein: the movable part of the pushing piece is in spherical contact with the carrying top plate; and/or the fixing part of the pushing piece is in spherical contact with the guide base.

5. The lift mechanism of claim 2, wherein: the objective table is still including locating protruding arm that stretches on the year thing mainboard, the leading truck is still including locating two direction roof between the main deflector, protruding arm's projection in vertical direction fall into in the projection of direction roof in vertical direction.

6. The lift mechanism of claim 5, wherein: the objective table further comprises a limiting adjusting piece arranged on the protruding arm, and the limiting adjusting piece is used for adjusting the distance between the protruding arm and the guide top plate.

7. The lift mechanism of claim 6, wherein: the limiting adjusting part is a limiting screw, a screw rod of the limiting screw is in threaded connection with the protruding arm, and a nut of the limiting screw is used for abutting against the guide top plate.

8. The lifting mechanism according to any one of claims 1 to 7, wherein: the lifting mechanism further comprises a base, and the guide base is arranged on the base.

9. The lift mechanism of claim 8, wherein: the base is provided with a position adjusting structure, and the position adjusting structure is used for limiting the position of the guide base on the base.

10. A laser cutting machine is characterized in that: comprising a lifting mechanism as claimed in any one of claims 1 to 9.