阅读说明：本技术 升降机构及激光加工装置 (Lifting mechanism and laser processing device ) 是由 李文强 杨建新 朱霆 周学慧 张凯 于 2021-07-16 设计创作，主要内容包括：本发明提出一种升降机构及激光加工装置。升降机构包括工作台、第一基座、第二基座、承载平台及第一传动件,所述第一基座沿前后方向可移动地设于所述工作台上,所述第一基座的背侧自上而下设有斜面；所述第二基座沿所述斜面可移动地设于所述第一基座上；所述承载平台可活动地设于所述第二基座上,所述承载平台沿上下方向可移动地连接于所述工作台；所述第一传动件设于所述斜面上并连接所述第一基座和所述第二基座,所述第一传动件用于带动所述第二基座沿所述第一基座的移动方向反向移动,以带动所述承载平台上下移动。本发明的升降机构,能够降低现有升降机构的高度,以减小升降机构的体积。(The invention provides a lifting mechanism and a laser processing device. The lifting mechanism comprises a workbench, a first base, a second base, a bearing platform and a first transmission piece, wherein the first base is movably arranged on the workbench along the front-back direction, and an inclined plane is arranged on the back side of the first base from top to bottom; the second base is movably arranged on the first base along the inclined plane; the bearing platform is movably arranged on the second base and movably connected to the workbench along the up-down direction; the first transmission piece is arranged on the inclined plane and connected with the first base and the second base, and the first transmission piece is used for driving the second base to move reversely along the moving direction of the first base so as to drive the bearing platform to move up and down. The lifting mechanism can reduce the height of the existing lifting mechanism so as to reduce the volume of the lifting mechanism.)

1. A lift mechanism, comprising:

a work table;

the first base is movably arranged on the workbench along the front-back direction, and an inclined plane is arranged on the back side of the first base from top to bottom;

the second base is movably arranged on the first base along the inclined plane;

the bearing platform is movably arranged on the second base and movably connected to the workbench along the vertical direction; and

the first transmission piece is arranged on the inclined plane and connected with the first base and the second base, and the first transmission piece is used for driving the second base to move reversely along the moving direction of the first base so as to drive the bearing platform to move up and down.

2. The lifting mechanism according to claim 1, wherein the lifting mechanism further comprises a lifting assembly, the lifting assembly comprises a fixed seat, a movable seat and a second transmission member, the fixed seat is connected with the workbench, the movable seat is connected with the bearing platform, the movable seat is slidably connected with the fixed seat through the second transmission member, the second transmission member is a crossed roller sliding table, and the second transmission member is arranged in the up-and-down direction so that the bearing platform can move up and down.

3. The lift mechanism of claim 2, further comprising a first slide assembly, wherein the second base and the load-bearing platform are slidably coupled via the first slide assembly such that the load-bearing platform is slidably disposed on the second base in a fore-aft direction.

4. The lifting mechanism of claim 3, further comprising a manual driving assembly, wherein the manual driving assembly is disposed on the supporting platform, a driving end of the manual driving assembly is connected to the second base, and the manual driving assembly is configured to drive the second base to move along the inclined plane, so as to drive the supporting platform to move up and down.

5. The lift mechanism of claim 3, further comprising a second slide assembly, wherein the first base and the table are slidably coupled via the second slide assembly such that the first base is slidably disposed on the table in a fore-and-aft direction.

6. The lift mechanism of claim 5, further comprising an automatic drive assembly disposed on the table, wherein a drive end of the automatic drive assembly is coupled to the first base to drive the first base to move in a fore-and-aft direction via the automatic drive assembly.

7. The lift mechanism of claim 1, wherein the first transmission member is a cross roller guide.

8. The lift mechanism of claim 1, further comprising a photoelectric sensor mounted on the table and located at a side of the first base, the photoelectric sensor configured to sense a position of the first base.

9. The lifting mechanism according to any one of claims 1 to 8, wherein there are a plurality of the second bases, the first transmission members and the carrying platforms, the plurality of the first transmission members are sequentially disposed on the inclined plane at intervals along the length direction of the first base, each of the second bases is correspondingly disposed on each of the first transmission members, and each of the carrying platforms is correspondingly disposed on each of the second bases, so that the first base drives the plurality of carrying platforms to move up and down simultaneously.

10. A laser processing apparatus, characterized in that the laser processing apparatus comprises the elevating mechanism according to any one of claims 1 to 9.

Technical Field

The invention relates to the technical field of intelligent devices, in particular to a lifting mechanism and a laser processing device.

Background

At present, among the laser processing device, when carrying out focus adjustment to the laser head, adopt lift straight line module to carry out the coarse adjustment to the focus of laser head usually, because of lift straight line module is longer, the space that occupies when being applied to laser processing device is more, leads to laser processing device's volume great, and then occupies great production space.

Disclosure of Invention

The invention mainly aims to provide a lifting mechanism, aiming at reducing the height of the existing lifting mechanism so as to reduce the volume of the lifting mechanism.

In order to achieve the above object, the present invention provides a lifting mechanism, including:

a work table;

the first base is movably arranged on the workbench along the front-back direction, and an inclined plane is arranged on the back side of the first base from top to bottom;

the second base is movably arranged on the first base along the inclined plane;

the bearing platform is movably arranged on the second base and movably connected to the workbench along the vertical direction; and

the first transmission piece is arranged on the inclined plane and connected with the first base and the second base, and the first transmission piece is used for driving the second base to move reversely along the moving direction of the first base so as to drive the bearing platform to move up and down.

In an embodiment, elevating system still includes lifting unit, lifting unit includes fixing base, sliding seat and second driving medium, the fixing base with the workstation is connected, the sliding seat with load-bearing platform connects, the sliding seat passes through the second driving medium with fixing base sliding connection, the second driving medium is cross roller slip table, the second driving medium sets up along upper and lower direction, so that load-bearing platform can reciprocate.

In an embodiment, the lifting mechanism further includes a first sliding assembly, and the second base and the carrying platform are slidably connected through the first sliding assembly, so that the carrying platform is slidably disposed on the second base along the front-back direction.

In an embodiment, the lifting mechanism further includes a manual driving assembly, the manual driving assembly is disposed on the bearing platform, a driving end of the manual driving assembly is connected to the second base, and the manual driving assembly is configured to drive the second base to move along the inclined plane, so as to drive the bearing platform to move up and down.

In an embodiment, the lifting mechanism further includes a second sliding assembly, and the first base and the workbench are slidably connected through the second sliding assembly, so that the first base is slidably disposed on the workbench in the front-back direction.

In an embodiment, the lifting mechanism further includes an automatic driving assembly, the automatic driving assembly is disposed on the workbench, and a driving end of the automatic driving assembly is connected to the first base so as to drive the first base to move in the front-back direction through the automatic driving assembly.

In one embodiment, the first transmission member is a cross roller guide.

In an embodiment, the lifting mechanism further includes a photoelectric sensor, the photoelectric sensor is mounted on the workbench and located at a side of the first base, and the photoelectric sensor is configured to sense and detect a position of the first base.

In an embodiment, the number of the second bases, the number of the first transmission members and the number of the bearing platforms are all plural, the plural first transmission members are sequentially arranged on the inclined plane at intervals along the length direction of the first base, each second base is correspondingly arranged on each first transmission member, and each bearing platform is correspondingly arranged on each second base, so that the first base drives the plural bearing platforms to move up and down simultaneously.

The invention also provides a laser processing device which comprises the lifting mechanism, wherein the lifting mechanism comprises a workbench, a first base, a second base, a bearing platform and a first transmission piece, the first base is movably arranged on the workbench along the front-back direction, and an inclined plane is arranged on the back side of the first base from top to bottom; the second base is movably arranged on the first base along the inclined plane; the bearing platform is movably arranged on the second base and movably connected to the workbench along the up-down direction; the first transmission piece is arranged on the inclined plane and connected with the first base and the second base, and the first transmission piece is used for driving the second base to move reversely along the moving direction of the first base so as to drive the bearing platform to move up and down.

The lifting mechanism of the invention is characterized in that a first transmission piece is arranged on the inclined plane of a first base, the first transmission piece is connected with the first base and a second base, a bearing platform is movably arranged on the second base and is movably connected with a workbench along the up-down direction, the first transmission piece is used for driving the second base to move along the moving direction of the first base in the reverse direction, when the first base moves on the workbench along the front-back direction, the second base moves on the inclined plane of the first base by the driving of the first transmission piece, the moving direction of the second base is opposite to the moving direction of the first base, the second base moves relative to the inclined plane of the first base, so that the height of the second base relative to the workbench is adjustable, the bearing platform is movably arranged on the second base, so that the bearing platform can move relative to the second base, and the height of the bearing platform and the workbench can be synchronously adjusted along with the second base, namely the height of the bearing platform relative to the workbench is adjustable; when the first base moves backwards on the workbench, the first transmission piece drives the second base to move forwards on the inclined surface of the first base, so that the second base moves upwards relative to the workbench, the bearing platform moves upwards along with the second base, and the bearing platform is used for installing a piece to be lifted; when the first base moves forwards on the workbench, the first transmission piece drives the second base to move backwards on the inclined plane of the first base, so that the second base moves downwards relative to the workbench, and the bearing platform moves downwards along with the second base. Compared with the existing lifting linear module which is long in lead screw and occupies a large space when the lead screw is installed in the up-down direction, the lifting linear module eliminates the lead screw, the distance of the first base moving along the front-back direction is converted into the distance of the second base moving along the inclined plane of the first base through the first transmission part, the height of the second base and the workbench is adjusted through the distance of the second base moving along the inclined plane, and further the height of a bearing platform on the second base is adjustable.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings 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 the structures shown in the drawings without creative efforts.

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

FIG. 2 is a schematic view of a portion of the structure of FIG. 1;

FIG. 3 is a schematic exploded view of the structure of FIG. 2;

FIG. 4 is a schematic view of the mechanism of FIG. 2 from another perspective;

FIG. 5 is an enlarged view taken at A in FIG. 4;

FIG. 6 is a schematic structural diagram of an embodiment of a laser processing apparatus according to the present invention;

fig. 7 is a partial structural view of fig. 6.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				10	Lifting mechanism	510	Fixed seat
11	Working table	520	Movable seat
				12	Outer casing	530	Second transmission member
13	Photoelectric sensor	600	First sliding component
				100	First base	700	Manual drive assembly
110	Inclined plane	800	Second sliding component
				200	Second base	900	Automatic drive assembly
300	Bearing platform	20	Laser processing apparatus
				400	First transmission piece	21	Laser head
500	Lifting assembly

The objects, features and advantages of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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 should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

The invention provides a lifting mechanism and a laser processing device comprising the same.

Referring to fig. 1 to 3, in an embodiment of the lifting mechanism 10 of the present invention, the lifting mechanism 10 includes a worktable 11, a first base 100, a second base 200, a supporting platform 300 and a first transmission member 400, wherein the first base 100 is movably disposed on the worktable 11 along a front-back direction, and an inclined plane 110 is disposed on a back side of the first base 100 from top to bottom; the second base 200 is movably disposed on the first base 100 along the inclined plane 110; the carrying platform 300 is movably disposed on the second base 200, and the carrying platform 300 is movably connected to the working platform 11 along the up-down direction; the first transmission member 400 is disposed on the inclined plane 110 and connected to the first base 100 and the second base 200, and the first transmission member 400 is configured to drive the second base 200 to move in a reverse direction along a moving direction of the first base 100, so as to drive the supporting platform 300 to move up and down.

Specifically, the lifting mechanism 10 further includes a housing 12, the housing 12 can be disposed in an open manner, the carrying platform 300 is disposed at an upper end of the housing 12, the first base 100, the second base 200 and the first transmission member 400 are disposed in the housing 12, and the housing 12 is used for protecting the components therein.

Further, the first base 100 may be movably disposed on the working platform 11 in various ways, such as but not limited to: the first base can be arranged on the workbench in a sliding mode, or the first base can be arranged on the workbench in a rotating mode. The inclined surface 110 of the first base 100 may be a plane surface or an arc surface, and only the second base 200 may move along the inclined surface 110. It can be understood that, when the second base 200 moves along the inclined plane 110 of the first base 100, the height of the second base 200 relative to the worktable 11 is changed, the first transmission member 400 is disposed on the inclined plane 110 and connected to the first base 100 and the second base 200, and the first transmission member 400 is used to drive the second base 200 to move reversely on the inclined plane 110 of the first base 100 relative to the first base 100, so as to adjust the position of the first base 100 and synchronously adjust the position of the second base 200, and there are various ways to implement the function of the first transmission member 400, such as but not limited to: the first transmission member 400 is a cross roller guide or a pulley assembly.

Further, the supporting platform 300 is movably disposed on the second base 200, and the supporting platform 300 is movably connected to the working platform 11 along the up-down direction, and there are various ways for the supporting platform 300 to be movably disposed on the second base 200, such as but not limited to: the bearing platform is connected with the second base in a sliding mode, or the bearing platform is connected with the second base in a rolling mode, and the bearing platform can move relative to the second base. When the second base 200 moves along the inclined plane 110 of the first base 100, the bearing platform 300 on the second base 200 also moves along with the second base 200, and the bearing platform 300 can move up and down, that is, the second base 200 can drive the bearing platform 300 to move up and down, the bearing platform 300 is used for installing a to-be-lifted piece, and thus, the function of driving the to-be-lifted piece to move up and down is realized.

In the lifting mechanism 10 of the present invention, the first transmission member 400 is disposed on the inclined surface 110 of the first base 100, the first transmission member 400 is connected to the first base 100 and the second base 200, the supporting platform 300 is movably disposed on the second base 200 and movably connected to the worktable 11 along the up-down direction, the first transmission member 400 is used to drive the second base 200 to move along the moving direction of the first base 100 in the reverse direction, when the first base 100 moves on the worktable 11 along the front-back direction, the second base 200 is driven by the first transmission member 400 to move on the inclined surface 110 of the first base 100, the moving direction of the second base 200 is opposite to the moving direction of the first base 100, the second base 200 moves relative to the inclined surface 110 of the first base 100, so that the height of the second base 200 relative to the worktable 11 is adjustable, the supporting platform 300 is movably disposed on the second base 200, so that the supporting platform 300 is movable relative to the second base 200, the height of the carrying platform 300 and the worktable 11 can be synchronously adjusted along with the second base 200, that is, the height of the carrying platform 300 relative to the worktable 11 can be adjusted; when the first base 100 moves backwards on the workbench 11, the first transmission member 400 drives the second base 200 to move forwards on the inclined surface 110 of the first base 100, so that the second base 200 moves upwards relative to the workbench 11, the bearing platform 300 also moves upwards along with the second base 200, and the bearing platform 300 is used for installing a member to be lifted; when the first base 100 moves forward on the workbench 11, the first transmission member 400 drives the second base 200 to move backward on the inclined surface 110 of the first base 100, so that the second base 200 moves downward relative to the workbench 11, and the bearing platform 300 moves downward along with the second base 200, thereby achieving the function of moving the bearing platform 300 up and down. Compared with the existing lifting linear module which has a long screw rod and occupies a large space when the screw rod is installed in the up-down direction, the lifting linear module eliminates the screw rod, the distance of the first base 100 moving in the front-back direction is converted into the distance of the second base 200 moving along the inclined plane 110 of the first base 100 through the first transmission piece 400, the height between the second base 200 and the workbench 11 is adjusted through the distance of the second base 200 moving along the inclined plane 110, and further the height of the bearing platform 300 on the second base 200 is adjustable, in the process, the space utilization rate of the lifting mechanism 10 is high, the space occupied by the lifting linear module in the height direction is reduced, and further the volume of the lifting mechanism 10 is reduced.

Referring to fig. 3 to 5, in an embodiment, the lifting mechanism 10 further includes a lifting assembly 500, the lifting assembly 500 includes a fixed seat 510, a movable seat 520, and a second transmission member 530, the fixed seat 510 is connected to the working platform 11, the movable seat 520 is connected to the supporting platform 300, the movable seat 520 is slidably connected to the fixed seat 510 through the second transmission member 530, the second transmission member 530 is a cross roller sliding table, and the second transmission member 530 is disposed along an up-down direction, so that the supporting platform 300 can move up and down.

It can be understood that the second transmission member 530 is a cross roller sliding table, and the structure of the cross roller sliding table is common, and now a simple introduction is made to the cross roller sliding table: the crossed roller sliding table comprises a roller base, a roller sliding table and two pairs of crossed roller guide rails, namely the crossed roller sliding table is formed by arranging the two pairs of crossed roller guide rails between the roller base and the roller sliding table. The crossed roller guide rail comprises a first guide rail, a second guide rail, rollers and a roller holding plate, wherein the roller holding plate is positioned between the first guide rail and the second guide rail, a plurality of rollers are arranged on the roller holding plate, and the guide rail is provided with a V-shaped raceway so that the rollers can roll in the raceway.

Further, in this embodiment, the fixing base 510 is fixedly connected to the working platform 11, the fixing base 510 is provided with an accommodating groove, the crossed roller sliding table is disposed in the accommodating groove, the roller base is fixedly connected to the fixing base 510, the roller sliding table is slidably disposed on the roller base along the vertical direction, the movable base 520 is fixedly connected to the roller sliding table, and the supporting platform 300 is fixedly connected to the movable base 520. When the second base 200 drives the bearing platform 300 to move upwards, the bearing platform 300 drives the roller sliding table to move upwards, the crossed roller guide rail drives the roller base to move towards one side of the roller sliding table back, namely, the roller base moves downwards, the roller base drives the workbench 11 to move downwards, further, the distance between the bearing platform 300 and the workbench 11 is increased, and the height of the bearing platform 300 is increased. When the second base 200 drives the bearing platform 300 to move downwards, the bearing platform 300 drives the roller sliding table to move downwards, the crossed roller guide rail drives the roller base to move towards one side of the roller sliding table back to the roller, namely, the roller base moves upwards, so that the distance between the bearing platform 300 and the workbench 11 is reduced, and the height of the bearing platform 300 is reduced. As described above, the function of moving the carrier platform 300 up and down is realized. By adopting the crossed roller sliding table, the linearity of the lifting assembly 500 is high, and the volume of the lifting assembly 500 is small, which is beneficial to reducing the volume of the lifting mechanism 10.

Referring to fig. 2 and fig. 3, in an embodiment, the lifting mechanism 10 further includes a first sliding assembly 600, and the second base 200 and the supporting platform 300 are slidably connected through the first sliding assembly 600, so that the supporting platform 300 is slidably disposed on the second base 200 along a front-back direction.

Specifically, the first sliding assembly 600 includes a first sliding rail and a first sliding block, the first sliding rail is disposed on the second base 200 and fixedly connected to the second base 200, a sliding groove of the first sliding rail is disposed along a front-back direction, the first sliding block is disposed on the first sliding rail and fixedly connected to the supporting platform 300, and the fixed connection is a threaded connection. When the second base 200 moves on the inclined plane 110 of the first base 100, the second base 200 drives the second slide rail to move synchronously, the bearing platform 300 is connected with the first slide rail in a sliding manner through the first slider, so that the bearing platform 300 and the second base 200 can slide relatively, and the bearing platform 300 moves in the up-down direction while moving relative to the second base 200 through the lifting assembly 500, so that the bearing platform 300 only moves in the up-down direction and does not move in the front-back direction relative to the working table 11. So set up, can ensure to treat in the direction of lift and go up and down to lift the piece and carry out lift adjustment, improved lift adjustment's accuracy.

In an embodiment, the lifting mechanism 10 further includes a manual driving assembly 700, the manual driving assembly 700 is disposed on the supporting platform 300, a driving end of the manual driving assembly 700 is connected to the second base 200, and the manual driving assembly 700 is configured to drive the second base 200 to move along the inclined plane 110, so as to drive the supporting platform 300 to move up and down.

Specifically, the manual driving assembly 700 includes a hand wheel and a lead screw assembly connected to the hand wheel, the end of the lead screw assembly is connected to the second base 200, the lead screw assembly includes a lead screw fixing member and a trapezoidal lead screw, the length direction of the trapezoidal lead screw is arranged along the front-rear direction, the trapezoidal lead screw is used for converting the rotary motion into the linear motion, and the lead screw assembly is shaken by the hand wheel so that the lead screw can drive the second base 200 to move along the front-rear direction. So set up, just can adjust the second base 200 through manual and remove, and then adjust load-bearing platform 300's height, just can adjust elevating system 10 through manual promptly and remove along upper and lower direction, improved elevating system 10's suitability.

It can be understood that the trapezoidal screw may also be a ball screw, and the trapezoidal screw is adopted in the embodiment, so that the production cost of the manual driving assembly 700 is lower, and further the production cost of the lifting mechanism 10 is reduced.

In an embodiment, the lifting mechanism 10 further includes a second sliding assembly 800, and the first base 100 and the workbench 11 are slidably connected through the second sliding assembly 800, so that the first base 100 is slidably disposed on the workbench 11 in the front-back direction. It can be understood that the second sliding assembly 800 includes a second sliding rail and a second sliding block, the second sliding rail is installed on the workbench 11 and is fixedly connected with the workbench 11, the sliding groove of the sliding rail is arranged along the front-back direction, the second sliding block is arranged on the second sliding rail and is fixedly connected with the first base 100, and the fixed connection mode is a threaded connection. Through setting up second sliding assembly 800 for first base 100 can slide along the fore-and-aft direction on workstation 11, and then makes first base 100 can drive second base 200 on it and remove, is favorable to second base 200 to convert the distance of back-and-forth movement into the high distance, and then can improve elevating system 10's space utilization.

Referring to fig. 2 and 3, in an embodiment, the lifting mechanism 10 further includes an automatic driving assembly 900, the automatic driving assembly 900 is disposed on the working platform 11, and a driving end of the automatic driving assembly 900 is connected to the first base 100, so that the automatic driving assembly 900 drives the first base 100 to move in the front-back direction. It is understood that the automatic driving assembly 900 includes a motor, a coupling, a support seat provided on the table 11, and a ball screw provided on the support seat and having one end connected to the coupling and the motor in sequence and the other end connected to the first base 100. The ball screw is driven by the motor to rotate so as to drive the first base 100 to move along the front-back direction, and the first base 100 is arranged on the second sliding assembly 800 and can automatically move along the front-back direction on the workbench 11. Through setting up automatic drive assembly 900, just can adjust the first base 100 back-and-forth movement, and then adjust the height of second base 200 and load-bearing platform 300, through setting up automatic drive assembly 900, just realized elevating system 10's high automatically regulated's function, improved elevating system 10's degree of automation.

Referring to fig. 2 and 3, in an embodiment, the first transmission member 400 is a cross roller rail. The structure of the crossed roller guide rail is conventional, and the structure of the crossed roller guide rail is simply introduced: the crossed roller guide rail comprises a first guide rail, a second guide rail, rollers and a roller holding plate, wherein the roller holding plate is positioned between the first guide rail and the second guide rail, a plurality of rollers are arranged on the roller holding plate, and the guide rail is provided with a V-shaped raceway so that the rollers can roll in the raceway. In this embodiment, the second base 200 is also provided with the inclined surface 110, the first guide rail is provided on the inclined surface 110 of the first base 100 and fixedly connected with the first base 100, the second guide rail is provided on the second base 200 and fixedly connected with the second base 200, and the roller holding plate and the plurality of rollers are provided between the first guide rail and the second guide rail so that the first guide rail and the second guide rail can be moved in opposite directions. By arranging the crossed roller guide rail, the first transmission member 400 has a smaller volume, and the crossed roller guide rail occupies a smaller space during production and manufacturing, thereby being beneficial to reducing the volume of the lifting mechanism 10.

Referring to fig. 4 and 5, in an embodiment, the lifting mechanism 10 further includes a photoelectric sensor 13, the photoelectric sensor 13 is mounted on the working platform 11 and located at a side of the first base 100, and the photoelectric sensor 13 is configured to sense a position of the first base 100.

Specifically speaking, the first base 100 is provided with a sensing piece, the photoelectric sensor 13 is provided with a sensing slot, the sensing piece can pass through the sensing slot when moving along the front-back direction along with the first base 100, and the photoelectric sensor can detect the sensing piece when the sensing piece is arranged in the sensing slot, so that the function of sensing and detecting the position of the first base 100 by the photoelectric sensor is realized. The height of the up-and-down movement of the supporting platform 300 can be known by sensing the position of the first base 100, so as to improve the automation degree of the lifting mechanism 10.

In an embodiment, the number of the second bases 200, the first transmission members 400 and the carrying platforms 300 is multiple, the multiple first transmission members 400 are sequentially arranged on the inclined plane 110 at intervals along the length direction of the first base 100, each second base 200 is correspondingly arranged on each first transmission member 400, and each carrying platform 300 is correspondingly arranged on each second base 200, so that the first base 100 drives the multiple carrying platforms 300 to move up and down simultaneously. It can be understood that each of the supporting platforms 300 can be provided with one to-be-lifted member, the supporting platforms 300 can be provided with a plurality of to-be-lifted members, and the first base 100 drives the supporting platforms 300 to move up and down simultaneously, thereby improving the adjusting efficiency of the lifting mechanism 10.

In addition, the number of the manual driving assemblies 700 may also be multiple, and each manual driving assembly 700 is connected to each second base 200, so that each second base 200 can be manually adjusted, thereby improving the applicability of the lifting mechanism 10.

The present invention further provides a laser processing apparatus 20, where the laser processing apparatus 20 includes the above-mentioned lifting mechanism 10, and the specific structure of the lifting mechanism 10 refers to the above-mentioned embodiments, and since the laser processing apparatus 20 adopts all technical solutions of all the above-mentioned embodiments, at least all beneficial effects brought by the technical solutions of the above-mentioned embodiments are achieved, and no further description is given here.

Referring to fig. 6 and 7, in an embodiment of the laser processing apparatus 20 of the present invention, the laser processing apparatus 20 includes a machine base, a machine frame, a lifting mechanism 10 and a laser head 21, the machine frame is disposed on the machine base, the lifting mechanism 10 is disposed on the machine frame, the laser head 21 is disposed on the lifting mechanism 10, and a height of the laser head 21 can be adjusted by the lifting mechanism 10, that is, a focal length of the laser head 21 can be adjusted by the lifting mechanism 10. With the arrangement, the height-adjustable function of the laser head 21 is realized, and the space occupied by the lifting mechanism 10 is smaller, which is beneficial to reducing the volume of the laser processing device 20.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.