CN219465058U - Transmission device and laser cutting machine with same - Google Patents

Abstract

The application is applicable to the technical field of cutting devices, and provides a transmission device and a laser cutting machine with the same. This transmission is used for laser cutting machine, and laser cutting machine includes laser cutting head and base, and transmission includes: the bearing part is fixedly arranged on the base; the sliding part can be arranged on the bearing part in a sliding way along the vertical direction, and the laser cutting head is arranged on one side of the sliding part far away from the bearing part and is in driving connection with the sliding part; a driving part mounted on the outer side surface of the bearing part; the rack is arranged on the sliding part along the vertical direction and meshed with the output end of the driving part. The transmission of the present application increases transmission speed while also improving dynamic response characteristics. In addition, the design that the driving part is arranged on the outer side surface of the bearing part not only reduces the size and the weight of the bearing part, but also facilitates the installation and the maintenance of the driving part on the premise of ensuring the transmission performance of the transmission device.

Description

Transmission device and laser cutting machine with same

Technical Field

The application belongs to the technical field of cutting devices, and more particularly relates to a transmission device and a laser cutting machine with the same.

Background

In the manufacturing process of ship manufacturing, engineering machinery, petroleum pipelines and the like, the groove processing of a thick steel plate is always an indispensable process, and a laser cutting machine is generally used for processing a groove on the thick steel plate.

The laser cutting machine in the prior art comprises a transmission device and a laser cutting head, wherein the transmission device comprises a Z-axis transmission motor, a bearing piece, a ball screw and a sliding block, the bearing piece is vertically arranged and fixedly connected with an external object, the Z-axis transmission motor is installed at the top end of the bearing piece, the ball screw comprises a screw rod and a nut, the screw rod is vertically arranged, the first end of the screw rod is in driving connection with the Z-axis transmission motor, the second end of the screw rod is rotatably arranged on the bearing piece, the nut is sleeved on the periphery of the screw rod and is rotatably connected with the screw rod, a sliding groove is formed in the side surface of the bearing piece, the extending direction of the sliding groove is consistent with the length direction of the bearing piece, the sliding block is located in the sliding groove, the outer surface of the sliding block is matched with the groove wall of the sliding groove, and the sliding block is fixedly connected with the nut; the laser cutting head is in driving connection with the nut. When the laser cutting head is lifted in the vertical direction, the Z-axis transmission motor drives the screw rod to rotate, and under the limiting effect of the sliding block, the nut drives the laser cutting head to lift in the vertical direction.

The transmission device adopts a ball screw to drive the laser cutting head to lift, so that the transmission speed is low, and the dynamic response characteristic is relatively low.

Disclosure of Invention

An object of the embodiment of the application is to provide a transmission device and a laser cutting machine with the transmission device, and aims to solve the technical problem that the transmission speed of the transmission device is low in the prior art.

To achieve the above object, according to one aspect of the present application, there is provided a transmission device for a laser cutting machine including a laser cutting head and a base, the transmission device including: the bearing part is fixedly arranged on the base; the sliding part can be arranged on the bearing part in a sliding way along the vertical direction, and the laser cutting head is arranged on one side of the sliding part far away from the bearing part and is in driving connection with the sliding part; a driving part mounted on the outer side surface of the bearing part; the rack is arranged on the sliding part along the vertical direction and meshed with the output end of the driving part.

Optionally, the bearing part comprises a bearing body and a guide rail, the guide rail is arranged at one side of the bearing body close to the sliding part, and the guide rail is arranged along the vertical direction; the sliding part comprises a sliding body and a sliding piece, and the sliding piece is arranged on one side of the sliding body close to the bearing part; the guide rail is provided with a chute extending along the vertical direction, and the sliding piece is partially positioned in the chute and can be arranged in the chute along the vertical direction in a sliding way and is matched with the wall of the chute.

Optionally, two sliding grooves are arranged, and the two sliding grooves are respectively arranged on two opposite side surfaces of the guide rail; the sliding piece comprises two sliding blocks, the two sliding blocks are arranged on the surface, close to the bearing part, of the sliding body at intervals, one of the two sliding blocks is positioned in one of the two sliding grooves, can be arranged in the sliding groove in a sliding manner along the vertical direction, and is matched with the groove wall of the sliding groove; the other sliding block is positioned in the other sliding groove, can be arranged in the other sliding groove in a sliding way along the vertical direction, and is matched with the groove wall of the other sliding groove.

Optionally, two guide rails are arranged on the surface of the bearing body close to the sliding part at intervals, and the guide rails are arranged along the vertical direction; the sliding parts are arranged in two, the two sliding parts are arranged on the surface, close to the bearing part, of the sliding body at intervals, sliding grooves extending in the vertical direction are formed in the two guide rails, and the two sliding parts are arranged in one-to-one correspondence with the two sliding grooves.

Optionally, the bearing body includes a first side wing, a middle part and a second side wing sequentially arranged along a horizontal direction, the first side wing and the second side wing are both arranged in a direction far away from the sliding part, an end surface of the first side wing far away from the middle part is arranged in a middle position close to the middle part, and an end surface of the second side wing far away from the middle part is arranged in a middle position close to the middle part; the guide rail is provided on a surface of the intermediate portion near the sliding portion.

Optionally, the transmission device further comprises a limiting piece, and the limiting piece is arranged on the surface of the bearing body, which is close to the sliding part; the sliding part further comprises a matching piece, the matching piece is arranged on the surface, close to the bearing part, of the sliding body and located below the limiting piece, and the lower surface of the limiting piece can be in contact with the upper surface of the matching piece so as to prevent the matching piece and the sliding body from continuously moving upwards.

Optionally, the sliding part further includes a directional pulley mounted on a surface of the sliding member near the bearing body, and capable of being rollably disposed on the surface of the bearing body near the sliding part in a vertical direction.

Optionally, the sliding part further comprises a ball, a rolling groove is arranged on the surface, close to the guide rail, of the sliding part, the ball is rollably arranged in the rolling groove, a rolling track is arranged at the bottom of the sliding groove along the vertical direction, and the ball is rollably arranged in the rolling track.

Optionally, the transmission device further comprises a damping component, wherein the damping component comprises a damping spring, and the damping spring is fixedly connected to the lower surface of the limiting piece; the damping component further comprises a rubber damping plate, and the rubber damping plate is fixedly connected to one end, away from the limiting piece, of the damping spring.

According to another aspect of the present application, there is provided a laser cutting machine, the laser cutting machine including a laser cutting head, a base, an AB swing shaft and the above-mentioned transmission device, the bearing portion being mounted on the base, the AB swing shaft being located at a side of the sliding portion away from the bearing portion and being in driving connection with the sliding portion, the laser cutting head being located at a side of the AB swing shaft away from the sliding portion and being in driving connection with the AB swing shaft.

The beneficial effect of the transmission that this application provided lies in: compared with the prior art, when the laser cutting head needs to be lifted along the vertical direction, the driving part is started, the output end of the driving part rotates along with the driving part and drives the rack to lift along the vertical direction, and meanwhile, as the sliding part can be arranged on the bearing part in a sliding way along the vertical direction, the sliding part and the laser cutting head connected with the sliding part lift on the bearing part along the vertical direction. The transmission of the present application increases transmission speed while also improving dynamic response characteristics. In addition, the design that the driving part is arranged on the outer side surface of the bearing part not only reduces the size and the weight of the bearing part, but also facilitates the installation and the maintenance of the driving part on the premise of ensuring the transmission performance of the transmission device.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required for the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a transmission device provided in an embodiment of the present application under a first view angle;

fig. 2 is a schematic structural diagram of a transmission device according to an embodiment of the present application under a second view angle;

fig. 3 is a schematic structural diagram of a transmission device according to an embodiment of the present application at a third view angle;

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

FIG. 5 is a schematic view of a simple structure of a limiting member with a shock absorbing assembly according to an embodiment of the present disclosure;

fig. 6 is a simplified schematic structural diagram of a slider with directional pulleys and balls according to an embodiment of the present application.

Reference numerals related to the above figures are as follows:

100. a carrying part; 110. a bearing body; 111. a first side wing; 112. an intermediate portion; 113. a second side wing; 120. a guide rail; 121. a chute; 200. a sliding part; 210. a sliding body; 220. a slider; 230. a directional pulley; 240. a ball; 300. a driving section; 400. a rack; 500. a limiting piece; 600. a shock absorbing assembly; 610. a damping spring; 620. a rubber shock-absorbing plate; 700. a laser cutting head; 800. a base; 900. and AB oscillating shaft.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved by the present application more clear, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element. Embodiments and features of embodiments in this application may be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

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 or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present application and simplify description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

As described in the background art, in the manufacturing process of ship manufacturing, construction machinery, petroleum pipelines, and the like, the groove processing of a thick steel plate is always an indispensable process, and a laser cutting machine is generally used to process a groove on a thick steel plate.

The laser cutting machine in the prior art comprises a transmission device and a laser cutting head, wherein the transmission device comprises a Z-axis transmission motor, a bearing piece, a ball screw and a sliding block, the bearing piece is vertically arranged and fixedly connected with an external object, the Z-axis transmission motor is installed at the top end of the bearing piece, the ball screw comprises a screw rod and a nut, the screw rod is vertically arranged, the first end of the screw rod is in driving connection with the Z-axis transmission motor, the second end of the screw rod is rotatably arranged on the bearing piece, the nut is sleeved on the periphery of the screw rod and is rotatably connected with the screw rod, a sliding groove is formed in the side surface of the bearing piece, the extending direction of the sliding groove is consistent with the length direction of the bearing piece, the sliding block is located in the sliding groove, the outer surface of the sliding block is matched with the groove wall of the sliding groove, and the sliding block is fixedly connected with the nut; the laser cutting head is in driving connection with the nut. When the laser cutting head is lifted in the vertical direction, the Z-axis transmission motor drives the screw rod to rotate, and under the limiting effect of the sliding block, the nut drives the laser cutting head to lift in the vertical direction. The transmission device adopts a ball screw to drive the laser cutting head to lift, so that the transmission speed is low, and the dynamic response characteristic is relatively low.

Referring to fig. 1 to 3, in order to solve the above-mentioned problems, according to an aspect of the present application, an embodiment of the present application provides a transmission device for a laser cutting machine including a laser cutting head 700 and a base 800, the transmission device including a carrying part 100, a sliding part 200, a driving part 300, and a rack 400, wherein the carrying part 100 is fixedly installed on the base 800, the sliding part 200 is slidably disposed on the carrying part 100 in a vertical direction, and the laser cutting head 700 is disposed at a side of the sliding part 200 remote from the carrying part 100 and is in driving connection with the sliding part 200; the driving part 300 is mounted on the outer side surface of the bearing part 100, and the rack 400 is mounted on the sliding part 200 in the vertical direction and is engaged with the output end of the driving part 300.

In the embodiment of the present application, the bearing part 100 is disposed along the vertical direction, the bearing part 100 and the base 800 are connected by bolts, however, in other embodiments, the bearing part 100 and the base 800 may be connected by welding or other manners, and the base 800 is fixedly mounted on an external component; the sliding portion 200 is disposed in the vertical direction; the rack 400 is disposed along the vertical direction, and the rack 400 and the sliding portion 200 are connected by welding, however, in other embodiments, other connection manners may be adopted for connection; the driving part 300 adopts a driving motor, an output end of the driving motor is fixedly connected with an output gear, the output gear is formed as an output end of the driving part 300, and the output gear is meshed with the rack 400 so as to drive the rack 400 to be arranged on the bearing part 100 in a sliding manner along the vertical direction, however, in other embodiments, the driving part 300 can also be a driving motor, and an output end of the driving motor is fixedly connected with an output gear meshed with the rack 400; the driving motor and the bearing part 100 are connected by bolts, but in other embodiments, the driving motor and the bearing part 100 may be connected by welding. The laser cutting head 700 includes a nozzle, a focusing lens, and a focusing tracking system, and the specific construction of the laser cutting head 700 is well known to those skilled in the art, and will not be described in detail herein.

In a specific application, when the laser cutting head 700 needs to be lifted in the vertical direction, the driving portion 300 is started, the output end of the driving portion 300 rotates along with the driving portion, and the rack 400 is driven to lift in the vertical direction, and meanwhile, the sliding portion 200 and the laser cutting head 700 connected to the sliding portion 200 are lifted on the carrying portion 100 along the vertical direction along with the lifting of the rack 400 because the sliding portion 200 can be slidably arranged on the carrying portion 100 along the vertical direction. The transmission of the present application increases transmission speed while also improving dynamic response characteristics. In addition, the design of mounting the driving part 300 on the outer side of the bearing part 100 not only reduces the size and weight of the bearing part 100, but also facilitates the installation and maintenance of the driving part 300 while ensuring the transmission performance of the transmission device.

Referring to fig. 1 to 3, the carrying part 100 in the present embodiment includes a carrying body 110 and a guide rail 120, the guide rail 120 being disposed at a side of the carrying body 110 near the sliding part 200, the guide rail 120 being disposed in a vertical direction; the sliding portion 200 further includes a sliding body 210 and a sliding member 220, where the sliding member 220 is disposed on a side of the sliding body 210 near the bearing portion 100; the guide rail 120 is provided with a chute 121 extending in a vertical direction, and the sliding member 220 is partially located in the chute 121, can be slidably disposed in the chute 121 in the vertical direction, and is adapted to a wall of the chute 121.

In this embodiment, the bearing body 110 is disposed along a vertical direction, the sliding member 220 is fixedly connected to a surface of the sliding body 210 near the bearing portion 100, the sliding member 220 is connected to the sliding body 210 by bolts, and in other embodiments, the sliding member 220 and the sliding body 210 may be connected by welding or the like, and an outer surface of the sliding member 220 is adapted to a groove wall of the chute 121; the rack 400 is fixedly coupled to the outer surface of the sliding body 210.

In a specific application, when the laser cutting head 700 needs to be lifted in the vertical direction, the driving portion 300 is started, and the output end of the driving portion 300 drives the rack 400 and the sliding body 210 connected with the rack 400 to lift, in this process, the sliding member 220 will lift in the sliding slot 121 along the extending direction of the sliding slot 121, so that the rack 400 and the sliding body 210 connected with the rack 400 can both lift on the bearing portion 100 in the vertical direction.

Referring to fig. 1 to 3, as one implementation in the embodiment of the present application, two sliding grooves 121 are provided, and two sliding grooves 121 are provided on opposite sides of the guide rail 120, respectively; the sliding piece 220 comprises two sliding blocks, wherein the two sliding blocks are arranged on the surface, close to the bearing part 100, of the sliding body 210 at intervals, one sliding block of the two sliding blocks is positioned in one sliding groove 121 of the two sliding grooves 121, can be arranged in the sliding groove in a sliding manner along the vertical direction, and is matched with the groove wall of the sliding groove 121; the other slide block is located in the other slide groove 121, can be slidably arranged in the other slide groove 121 along the vertical direction, and is matched with the groove wall of the other slide groove 121.

Referring to fig. 4, in the present embodiment, a side surface of the guide rail 120 adjacent to the sliding portion 200 is a first side surface, and two sliding grooves 121 are respectively provided on a second side surface and a third side surface adjacent to the first side surface, the second side surface and the third side surface being disposed opposite to each other; the chute 121 comprises a first chute body, a second chute body and a third chute body which are sequentially arranged, wherein the chute bottom of the first chute body is the chute bottom of the chute 121, the cross section of the first chute body is approximately trapezoid, and the chute width of the first chute body gradually increases along the direction from approaching to being far from the chute bottom of the chute 121; the cross section of the second groove body is approximately trapezoid, the groove wall of the second groove body is an arc surface, and the groove width of the second groove body is gradually increased along the direction from approaching to being far from the first groove body; the cross section of the third groove body is approximately trapezoid, and the groove width of the third groove body gradually increases along the direction from approaching to being far away from the second groove body. The outer surface of one of the two sliding blocks is matched with the groove wall of one sliding groove 121 of the two sliding grooves 121, the outer surface of the other sliding block is matched with the groove wall of the other sliding groove 121, and the two sliding blocks are oppositely arranged by taking the central line of the guide rail 120 as the central line.

In a specific application, when the laser cutting head 700 is lifted, the driving part 300 is started, and the output end of the driving part 300 drives the rack 400 and the sliding body 210 connected with the rack 400 to lift, and in this process, the two sliding blocks lift in the two sliding grooves 121 along the extending direction of the sliding grooves 121 respectively. The sliding body 210 and the rack 400 mounted on the sliding body 210 can be stably lifted and lowered on the bearing part 100 by the cooperation of the sliding block and the sliding groove 121.

As another implementation manner in the embodiment of the present application, the sliding piece 220 is a T-shaped block, and the sliding groove 121 is a T-shaped groove, where the T-shaped block includes a transverse section and a vertical section, the transverse section is disposed on a side of the vertical section away from the sliding body 210, and is fixedly connected with the vertical section, and the transverse section and the vertical section are perpendicular to each other; the chute 121 includes a first chute body and a second chute body, the second chute body is disposed on one side of the first chute body away from the bearing body 110, the extending direction of the first chute body is perpendicular to the extending direction of the second chute body, and the second chute body is disposed on an opening of a port of the second chute body away from the first chute body.

In a specific application, when the laser cutting head 700 is lifted, the driving part 300 is started, and the output end of the driving part 300 drives the rack 400 and the sliding body 210 connected with the rack 400 to lift, and in this process, the T-shaped block will lift in the T-shaped groove along the extending direction of the T-shaped groove. The sliding body 210 and the rack 400 mounted on the sliding body 210 can be stably lifted and lowered on the bearing part 100 by the cooperation of the T-shaped blocks and the T-shaped grooves.

Referring to fig. 1 to 3, as an alternative in the embodiment of the present application, there are two guide rails 120, and the two guide rails 120 are disposed on the surface of the bearing body 110 near the sliding portion 200 at intervals, and are disposed in the vertical direction; the two sliding pieces 220 are arranged, the two sliding pieces 220 are arranged on the surface, close to the bearing part 100, of the sliding body 210 at intervals, sliding grooves 121 extending in the vertical direction are formed in the two guide rails 120, and the two sliding pieces 220 are arranged in one-to-one correspondence with the two sliding grooves 121. The two guide rails 120, the two sliding members 220, and the two sliding grooves 121 are provided to facilitate the sliding body 210 and the rack 400 mounted on the sliding body 210 to more smoothly and stably lift on the bearing portion 100, reducing the possibility of the sliding body 210 being jammed by sliding on the bearing portion 100.

Referring to fig. 1 to 3, as an alternative in the embodiment of the present application, the carrying body 110 includes a first side wing 111, a middle portion 112, and a second side wing 113 sequentially disposed in a horizontal direction, each of the first side wing 111 and the second side wing 113 being disposed in a direction away from the sliding portion 200, an end surface of the first side wing 111 away from the middle portion 112 being disposed toward a middle position near the middle portion 112, and an end surface of the second side wing 113 away from the middle portion 112 being disposed toward a middle position near the middle portion 112; the guide rail 120 is provided on a surface of the intermediate portion 112 near the sliding portion 200.

In this alternative, the first side wing 111 and the middle portion 112 are in a vertical state in the horizontal direction, and the middle portion 112 and the second side wing 113 are in a vertical state in the horizontal direction; the driving part 300 is mounted on the outer surface of the first side wing 111 remote from the middle part 112, although in other embodiments the driving part 300 may also be mounted on the outer surface of the second side wing 113 remote from the middle part 112. The carrier body 110 is designed in such a way that the entire transmission becomes more compact and stable.

Referring to fig. 1 to 3, as an alternative to the embodiment of the present application, the transmission device further includes a stopper 500, where the stopper 500 is disposed on a surface of the bearing body 110 near the sliding portion 200; the sliding portion 200 further includes a mating member disposed on a surface of the sliding body 210 near the bearing portion 100 and below the limiting member 500, where a lower surface of the limiting member 500 can contact an upper surface of the mating member to block the mating member and the sliding body 210 from further moving upwards.

In this alternative manner, the limiting member 500 is a limiting block, the mating member is a mating block, and the mating block is fixedly connected to the surface of the sliding body 210 near the bearing portion 100 by using a bolt, however, in other embodiments, the mating block may be connected to the sliding body 210 by welding or an integrally formed manner. Along with the rising of the sliding body 210, the upper surface of the matching piece will also contact with the lower surface of the limiting piece 500, and when the upper surface of the matching piece is attached to the lower surface of the limiting piece 500, the limiting piece 500 will block the matching piece, so that the matching piece and the sliding body 210 connected with the matching piece cannot continue to rise, and the problem that the sliding body 210 is separated from the bearing part 100 in the rising process is avoided.

Referring to fig. 5, in the present alternative, the transmission further includes a damper assembly 600, and the damper assembly 600 includes a damper spring 610, and the damper spring 610 is fixedly coupled to the lower surface of the stopper 500. With the lifting of the sliding body 210, the upper surface of the mating member contacts with the end of the damper spring 610 away from the stopper 500, so that the mating member and the sliding body 210 connected with the mating member cannot be lifted. The damping spring 610 plays a role in damping and buffering the matching piece, so that the problem that the upper surface of the matching piece directly contacts with the lower surface of the limiting piece 500 is avoided, and the integrity of the matching piece and the limiting piece 500 is ensured.

Referring to fig. 5, in this alternative, the damper assembly 600 further includes a rubber damper plate 620, and the rubber damper plate 620 is fixedly connected to an end of the damper spring 610 remote from the stopper 500. The rubber damper 620 not only increases the contact area between the damper spring 610 and the mating member, thereby facilitating better blocking of the mating member, but also enhances the damping and buffering effects applied to the mating member by the rubber damper 620 made of rubber material.

Referring to fig. 1 and 6, as an alternative to the embodiment of the present application, the sliding part 200 further includes a directional pulley 230, and the directional pulley 230 is mounted on a surface of the sliding member 220 adjacent to the bearing body 110 and is rollably disposed on a surface of the bearing body 110 adjacent to the sliding part 200 in a vertical direction.

In this alternative, the directional pulley 230 is fixedly mounted on the surface of the slider 220 adjacent to the carrier body 110. The directional pulley 230 avoids the problem that the sliding member 220 directly contacts with the surface of the bearing body 110, which is close to the sliding portion 200, so that noise generated by contact between the sliding member 220 and the bearing body is eliminated as much as possible, and meanwhile, the sliding member 220 is conveniently driven to lift in the sliding groove 121 easily and laborsaving, and the mechanical efficiency of the driving portion 300 is improved.

Referring to fig. 6, as an alternative to the embodiment of the present application, the sliding part 200 further includes balls 240, a rolling groove is provided on a surface of the sliding member 220 adjacent to the guide rail 120, the balls 240 are rollably installed in the rolling groove, a rolling track is provided at a bottom of the sliding groove 121 in a vertical direction, and the balls 240 are rollably provided in the rolling track.

In this alternative, a plurality of balls 240 are provided, a plurality of rolling grooves are also provided, the number of the rolling grooves is the same as that of the balls 240, the plurality of rolling grooves are uniformly provided on the surface of the slider 220 near the guide rail 120 in the vertical direction, and each ball 240 is correspondingly installed in each rolling groove. The cross section of the rolling track is semicircular. The ball 240 avoids the problem that the surface of the sliding part 220 close to the sliding groove 121 is directly rubbed with the bottom of the sliding groove 121, so that noise generated by contact between the sliding part 220 and the sliding groove 121 is eliminated as much as possible, and meanwhile, the sliding part 220 is driven to lift in the sliding groove 121 more easily and in a labor-saving manner, and the mechanical efficiency of the driving part 300 is further improved.

Referring to fig. 1 to 3, according to another aspect of the present application, an embodiment of the present application further provides a laser cutting machine, where the laser cutting machine includes a laser cutting head 700, a base 800, an AB swing shaft 900, and the above-mentioned transmission device, the bearing portion 100 is installed on the base 800, the AB swing shaft 900 is located on a side of the sliding portion 200 away from the bearing portion 100 and is in driving connection with the sliding portion 200, and the laser cutting head 700 is located on a side of the AB swing shaft 900 away from the sliding portion 200 and is in driving connection with the AB swing shaft 900.

In the embodiment of the present application, the AB swinging shaft 900 is generally applied to a five-axis linkage, and in the embodiment of the present application, the AB swinging shaft 900 mainly drives the laser cutting head 700 to rotate around the X axis and the Y axis, and the specific construction of the AB swinging shaft 900 belongs to common knowledge of those skilled in the art, and is not described in detail herein; the connection between the AB swing shaft 900 and the laser cutting head 700 is a conventional connection, which is well known to those skilled in the art, and will not be described in detail herein. The laser cutting head 700 includes a nozzle, a focusing lens and a focusing tracking system, and the specific construction of the laser cutting head 700 is well known to those skilled in the art, and will not be described in detail herein; the connection between the AB swing shaft 900 and the sliding portion 200 is a conventional connection, which is known to those skilled in the art and will not be described in detail herein. The base 800 is fixedly connected to an external object.

In a specific application, when the laser cutting head 700 needs to be lifted in the vertical direction, the driving portion 300 is started, the output end of the driving portion 300 rotates along with the driving portion, and the rack 400 is driven to lift in the vertical direction, and meanwhile, the sliding portion 200 and the laser cutting head 700 connected to the sliding portion 200 are lifted on the carrying portion 100 along the vertical direction along with the lifting of the rack 400 because the sliding portion 200 can be slidably arranged on the carrying portion 100 along the vertical direction. By adopting the transmission device, the transmission speed of the laser cutting machine can be greatly improved, and the dynamic response characteristic of the laser cutting machine is improved. In addition, the design of mounting the driving part 300 on the outer side of the bearing part 100 not only reduces the size and weight of the bearing part 100, but also facilitates the installation and maintenance of the driving part 300 while ensuring the transmission performance of the transmission device.

In summary, implementing the transmission device and the laser cutting machine with the transmission device provided by the embodiment has at least the following beneficial technical effects: when the laser cutting head 700 needs to be lifted in the vertical direction, the driving part 300 is started, the output end of the driving part 300 rotates along with the driving part, and the rack 400 is driven to lift in the vertical direction, and meanwhile, as the sliding part 200 can be arranged on the bearing part 100 in a sliding manner in the vertical direction, the sliding part 200 and the laser cutting head 700 connected with the sliding part 200 lift on the bearing part 100 along with the lifting of the rack 400. The transmission of the present application increases transmission speed while also improving dynamic response characteristics. In addition, the design of mounting the driving part 300 on the outer side of the bearing part 100 not only reduces the size and weight of the bearing part 100, but also facilitates the installation and maintenance of the driving part 300 while ensuring the transmission performance of the transmission device.

The foregoing description of the preferred embodiment of the present utility model is not intended to limit the utility model to the particular form disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the utility model.

Claims (10)

1. A transmission for a laser cutting machine, the laser cutting machine comprising a laser cutting head (700) and a base (800), the transmission comprising:

a bearing part (100), wherein the bearing part (100) is fixedly arranged on the base (800);

the sliding part (200) can be arranged on the bearing part (100) in a sliding manner along the vertical direction, and the laser cutting head (700) is arranged on one side of the sliding part (200) away from the bearing part (100) and is in driving connection with the sliding part (200);

a driving part (300), wherein the driving part (300) is installed on the outer side surface of the bearing part (100);

and a rack (400), wherein the rack (400) is mounted on the sliding part (200) along the vertical direction and is meshed with the output end of the driving part (300).

2. The transmission device according to claim 1, wherein the carrying portion (100) includes a carrying body (110) and a guide rail (120), the guide rail (120) being provided on a side of the carrying body (110) close to the sliding portion (200), the guide rail (120) being provided in a vertical direction;

the sliding part (200) comprises a sliding body (210) and a sliding piece (220), wherein the sliding piece (220) is arranged on one side, close to the bearing part (100), of the sliding body (210); the guide rail (120) is provided with a chute (121) extending along the vertical direction, and the sliding piece (220) is partially positioned in the chute (121), can be slidably arranged in the chute (121) along the vertical direction and is matched with the wall of the chute (121).

3. The transmission device according to claim 2, characterized in that two of said runners (121) are provided, two of said runners (121) being provided on opposite sides of said guide rail (120), respectively; the sliding piece (220) comprises two sliding blocks, wherein the two sliding blocks are arranged on the surface, close to the bearing part (100), of the sliding body (210) at intervals, one of the two sliding blocks is positioned in one sliding groove (121) of the two sliding grooves (121), can be arranged in the sliding groove (121) in a sliding manner along the vertical direction, and is matched with the groove wall of the sliding groove (121); the other sliding block is positioned in the other sliding groove (121), can be arranged in the other sliding groove (121) in a sliding manner along the vertical direction, and is matched with the groove wall of the other sliding groove (121).

4. The transmission device according to claim 2, wherein two guide rails (120) are provided, and the two guide rails (120) are disposed at intervals on the surface of the bearing body (110) close to the sliding portion (200) and are both disposed in the vertical direction;

the sliding parts (220) are arranged at two, the two sliding parts (220) are arranged on the surface, close to the bearing part (100), of the sliding body (210) at intervals, the two guide rails (120) are respectively provided with sliding grooves (121) extending along the vertical direction, and the two sliding parts (220) are arranged in one-to-one correspondence with the two sliding grooves (121).

5. The transmission according to claim 2, characterized in that the carrier body (110) comprises a first flank (111), a middle portion (112) and a second flank (113) arranged in succession in a horizontal direction, the first flank (111) and the second flank (113) being each arranged in a direction away from the slide (200), an end face of the first flank (111) remote from the middle portion (112) being arranged towards a middle position close to the middle portion (112), an end face of the second flank (113) remote from the middle portion (112) being arranged towards a middle position close to the middle portion (112); the guide rail (120) is provided on a surface of the intermediate portion (112) near the sliding portion (200).

6. The transmission according to claim 2, characterized in that it further comprises a stop (500), said stop (500) being provided on a surface of said carrying body (110) close to said sliding portion (200);

the sliding part (200) further comprises a matching piece, the matching piece is arranged on the surface, close to the bearing part (100), of the sliding body (210) and is located below the limiting piece (500), and the lower surface of the limiting piece (500) can be in contact with the upper surface of the matching piece so as to block the matching piece and the sliding body (210) from continuously moving upwards.

7. The transmission according to claim 2, characterized in that the sliding part (200) further comprises a directional pulley (230), the directional pulley (230) being mounted on a surface of the sliding member (220) close to the carrier body (110) and being rollably arranged in the vertical direction on a surface of the carrier body (110) close to the sliding part (200).

8. The transmission device according to claim 7, characterized in that the sliding part (200) further comprises balls (240), the sliding part (220) is provided with rolling grooves on a surface close to the guide rail (120), the balls (240) are rollably mounted in the rolling grooves, the groove bottoms of the sliding grooves (121) are provided with rolling tracks in the vertical direction, and the balls (240) are rollably disposed in the rolling tracks.

9. The transmission of claim 6, further comprising a damper assembly (600), the damper assembly (600) comprising a damper spring (610), the damper spring (610) fixedly attached to a lower surface of the limiter (500);

the damping assembly (600) further comprises a rubber damping plate (620), and the rubber damping plate (620) is fixedly connected to one end, far away from the limiting piece (500), of the damping spring (610).

10. A laser cutting machine, characterized in that the laser cutting machine comprises a laser cutting head (700), a base (800), an AB oscillating shaft (900) and the transmission device according to any one of claims 1 to 9, the bearing part (100) is mounted on the base (800), the AB oscillating shaft (900) is located at a side of the sliding part (200) away from the bearing part (100) and is in driving connection with the sliding part (200), and the laser cutting head (700) is located at a side of the AB oscillating shaft (900) away from the sliding part (200) and is in driving connection with the AB oscillating shaft (900).