CN210848788U - Product movement mechanism for width-variable laser marking machine - Google Patents

Abstract

The utility model discloses a changeable laser marking machine of width is with product motion, including two clamping device, a tilting mechanism, a first mounting panel and a second mounting panel, two clamping device set up respectively on two clamping device, through the vice drive second mounting panel of motor and lead screw towards or keep away from first mounting panel motion to change the interval between the clamping device, through vice transmission moment of torsion and the translation of ball spline, both guaranteed tilting mechanism can overturn clamping device, do not influence clamping device's distance adjustment again. The utility model provides the high changeable laser marking machine of width product motion be applicable to the product of different widths and beat the mark.

Description

Product movement mechanism for width-variable laser marking machine

Technical Field

The utility model relates to a laser marking technical field, in particular to changeable laser marking of width is with product motion.

Background

Laser marking machines are commonly used in the industry to mark the surface of a board product, such as a PCB board. When marking, the product is horizontally placed in the machine, and the laser head moves above the product according to a path set by a program and marks the product at a set position. In many cases, it is desirable to print both sides of the product. The motion mechanism of the product is one of the key components of the laser marking machine, the product is horizontally conveyed to a marking position through the motion mechanism, and the product is turned 180 degrees to carry out double-sided marking. The existing laser marking machine is suitable for marking products with fixed width, and cannot mark products with smaller or larger width.

SUMMERY OF THE UTILITY MODEL

The utility model provides a changeable laser marking machine of width is with product motion, the width between the clamping device is adjustable, is applicable to the product of different width.

The product movement mechanism for the laser marking machine with the variable width comprises two clamping devices, a turnover mechanism, a first mounting plate and a second mounting plate, and further comprises a screw pair, a second guide rail and a fourth driving motor, wherein the two clamping devices are respectively arranged close to two opposite side surfaces of the first mounting plate and the second mounting plate and are respectively connected with the first mounting plate and the second mounting plate, the first mounting plate is fixed and can not move, the second mounting plate can move towards or away from the first mounting plate, the turnover mechanism comprises a third driving motor, a spline shaft, two first synchronizing wheels, two second synchronizing wheels and two synchronous belts, the third driving motor can drive the spline shaft to rotate around the central shaft of the spline shaft, the two second synchronizing wheels are respectively and fixedly connected with the two clamping devices, the first synchronizing wheels are connected with the second synchronizing wheels through the synchronous belts, and two first synchronizing wheels are coaxially arranged with the spline shaft, the spline shaft vertically passes through the first mounting plate and the second mounting plate, the spline shaft is sleeved with the spline nut, a first sleeve with a flange is sleeved on the periphery of the spline nut, the flange part of the first sleeve is fixedly connected with the flange part of the spline nut, a second sleeve with a flange is coaxially arranged on the periphery of the first sleeve, a ball bearing is arranged between the second sleeve and the first sleeve, the flange part of the second sleeve is fixedly connected with the second mounting plate, a first synchronizing wheel is coaxially arranged on the periphery of the first sleeve and is in key connection with the first sleeve, a screw pair comprises a ball screw and a screw nut, the ball screw and the second guide rail vertically pass through the first mounting plate and the second mounting plate, the ball screw is rotatably connected with the first mounting plate, the flange part of the screw nut is fixedly connected with the second mounting plate, the second guide rail is slidably connected with the second mounting plate, and a fourth driving motor can drive the ball screw to rotate.

In some embodiments, the clamping device comprises a first clamping plate, a second clamping plate, a fixing plate and a sliding assembly, drive assembly and driver part, first splint and second splint are parallel to each other, sliding assembly installs on the fixed plate, sliding assembly's slip direction is perpendicular with first splint, drive assembly includes two connecting pieces, first connecting rod, the second connecting rod, the pull rod, two connecting pieces are connected with sliding assembly, two connecting pieces still are connected with first splint and second splint respectively, first connecting rod sets up in the pull rod both sides with second connecting rod symmetry, the one end of first connecting rod is articulated with one of them connecting piece, the one end of second connecting rod is articulated with another one connecting piece, the other end of first connecting rod and second connecting rod is handed over in the same position of pull rod, the pull rod links to each other with driver part, driver part's direction of drive is perpendicular with sliding assembly's slip direction.

In some embodiments, a plane of symmetry of the first and second links is coplanar with a central axis of the second synchronizing wheel, and the first and second clamping plates are symmetrically disposed on both sides of the plane of symmetry.

In some embodiments, the fixed plate has a first surface and an opposite second surface, the first clamping plate and the second clamping plate are located on the side where the second surface is located and extend along the length direction of the fixed plate, the first surface is provided with two grooves, each groove is provided with two sliding assemblies, and each groove corresponds to one transmission assembly.

In some embodiments, the sliding assembly includes a guide rail and two sliding blocks slidably connected to the guide rail, and the guide rail extends perpendicular to the first clamping plate.

In some embodiments, the connecting piece comprises transverse plates, protruding parts vertically arranged from two ends of the transverse plates to the same side and short shafts vertically arranged from the transverse plates to the other side, the distances from the short shafts to the two protruding parts are equal, one end of each of the first connecting rod and the second connecting rod is hinged with the short shaft, a channel hole penetrating through the fixing plate is arranged in each groove, the protruding part of one connecting piece is fixedly connected with the first clamping plate, the protruding part of the other connecting piece is fixedly connected with the second clamping plate, two transverse plates are arranged in each groove, one sliding block of the sliding assembly is connected with the transverse plate of one connecting piece, and the other sliding block of the sliding assembly is connected with the transverse plate of the other connecting piece.

In some embodiments, the feeding device is mounted on the fixing plate, the feeding device comprises a first conveyor belt and a second conveyor belt, the first clamping plate is arranged in a closed loop formed by the first conveyor belt, and the second clamping plate is arranged in a closed loop formed by the second conveyor belt.

In some embodiments, the feeding device further includes a first driving wheel, a first driven wheel, a second driving wheel, a second driven wheel, a first driving motor and a second driving motor, the first driving wheel, the first driven wheel and the first conveyor belt form a belt wheel transmission, the first driving wheel is connected to an output shaft of the first driving motor through gear engagement, the second driving wheel, the second driven wheel and the second conveyor belt form a belt wheel transmission, and the second driving wheel is connected to an output shaft of the second driving motor through gear engagement.

In some embodiments, the device further comprises a third mounting plate, the spline shaft further penetrates through the third mounting plate, the spline shaft is rotatably connected with the third mounting plate, the third driving motor is fixed on the third mounting plate, and the fourth driving motor is also mounted on the third mounting plate.

In some embodiments, the turnover mechanisms further comprise connecting shafts, one end of each connecting shaft is coaxially fixed with the second synchronizing wheel, the other end of each connecting shaft is vertically fixed with the fixing plate, and the connecting shafts of the two turnover mechanisms are further rotatably connected with the first mounting plate and the second mounting plate respectively.

The utility model has the advantages that: the distance between the clamping devices can be adjusted, and the device is suitable for marking products with different widths; adopt ball spline pair drive mode, can transmit the moment of torsion, realize synchronous upset, do not influence the motion of second mounting panel again, guaranteed that the distance between the clamping device can be adjusted.

Drawings

Fig. 1 is a structural diagram of a product movement mechanism for a laser marking machine with a variable width according to an embodiment of the present invention.

Fig. 2 is a structural view of a turnover mechanism in the product moving mechanism shown in fig. 1.

Fig. 3 is an exploded view of a spline shaft and first synchronous wheel connecting structure of the flip structure shown in fig. 2.

Fig. 4 is a block diagram of a clamping device in the product movement mechanism shown in fig. 1.

Fig. 5 is another perspective view of the clamping device shown in fig. 4.

Fig. 6 is an exploded view of the clamping device shown in fig. 5.

Fig. 7 is an exploded view of a fixing plate in the clamping device shown in fig. 5.

Fig. 8 is a front view of the fastening plate shown in fig. 7 with the fastening plate cover concealed.

Fig. 9 is a front view of a fixing plate cover in the fixing plate shown in fig. 7.

Fig. 10 is a structural view of a slide assembly in the clamping device shown in fig. 6.

Fig. 11 is a block diagram of a drive assembly in the clamping device shown in fig. 5 or 6.

FIG. 12 is a block diagram of the linkage in the transmission assembly shown in FIG. 11.

Fig. 13 is a block diagram of a tie rod in the drive assembly shown in fig. 11.

Fig. 14 is a structural view of a feeding device in the product moving mechanism shown in fig. 1.

Detailed Description

The present invention will be described in further detail with reference to the accompanying fig. 1-14.

Referring to fig. 1, the product movement mechanism for a laser marking machine with variable width comprises two clamping devices 1, a turnover mechanism 3, a first mounting plate 4 and a second mounting plate 5, and further comprises a screw pair, a second guide rail 6 and a fourth driving motor 7, wherein the screw pair comprises a ball screw 8 and a screw nut, the ball screw 8 and the second guide rail 6 vertically pass through the first mounting plate 4 and the second mounting plate 5, the ball screw 8 is rotatably connected with the first mounting plate 4, a flange part of the screw nut is fixedly connected with the second mounting plate 5, the second guide rail 6 is slidably connected with the second mounting plate 5, the fourth driving motor 7 can drive the ball screw 8 to rotate, for example, by belt wheel transmission, the two clamping devices 1 are respectively arranged close to two opposite side surfaces of the first mounting plate 4 and the second mounting plate 5 and are respectively connected with the first mounting plate 4 and the second mounting plate 5, the first mounting plate 4 is stationary and the second mounting plate 5 is movable towards and away from the first mounting plate 4. Two opposite edges of the product are clamped by the clamping devices 1 positioned on two sides of the product, the turnover mechanism 3 drives the clamping devices 1 and the product to turn over, and the second mounting plate 5 can move towards and be far away from the first mounting plate 4 under the action of the screw rod pair, so that the distance between the two clamping devices 1 is changed to adapt to products with different widths.

Referring to fig. 2 and 3, the turnover mechanism 3 includes a third driving motor 3100, a spline shaft 3200, two first synchronizing wheels 3300, two second synchronizing wheels 3400, and two synchronous belts 3600, wherein the third driving motor 3100 can drive the spline shaft 3200 to rotate around a central axis thereof, the two second synchronizing wheels 3400 are respectively fixedly connected to the two clamping devices 1, the first synchronizing wheel 3300 is connected to the second synchronizing wheel 3400 through the synchronous belts 3600, the two first synchronizing wheels 3300 are coaxially disposed with the spline shaft 3200, the spline shaft 3200 vertically passes through the first mounting plate 4 and the second mounting plate 5, the spline shaft 3200 is sleeved with a spline nut 3220, a first sleeve 3230 with a flange is sleeved on the outer circumference of the spline nut 3220, a flange portion of the first sleeve 3230 is fixedly connected to a flange portion of the spline nut 3220, a second sleeve 3240 with a flange is coaxially disposed on the outer circumference of the first sleeve 3230, a ball bearing 3250 is disposed between the first sleeve 3230 and the second sleeve 3240, the flange part of the second sleeve 3240 is fixedly connected with the second mounting plate 5, and the first synchronizing wheel 3300 is coaxially arranged on the periphery of the first sleeve 3230 and is in key connection with the first sleeve 3230. The third driving motor 3100 drives the spline shaft 3200 to rotate, and the two clamping devices 1 are turned over synchronously by means of a synchronous belt and synchronous wheel transmission structure. Spline shaft 3200 of the present embodiment and spline nut 3220 are fitted to form a ball spline pair, and the ball spline pair simultaneously performs smooth rolling and torque transmission in a precisely ground rolling groove by using balls mounted in a spline shaft outer cylinder, and tilting mechanism 3 of the present embodiment can not only drive clamping device 1 to tilt but also does not affect the movement of second mounting plate 5.

Referring to fig. 2, the turnover mechanism 3 further includes a connecting shaft 3500 connected to the clamping device 1 for transmitting rotation to the clamping device 1. One end of the connecting shaft 3500 is coaxially fixed with the second synchronizing wheel 3400, and the other end of the connecting shaft 3500 is vertically fixed with the clamping device 1, wherein one connecting shaft 3500 is rotatably connected with the first mounting plate 4, and the other connecting shaft 3500 is rotatably connected with the second mounting plate 5, for example, the connecting shaft 3500 can rotate around the central axis thereof through a bearing, so that the second synchronizing wheel 3400 can transmit the torque to the clamping device 1, and the clamping device 1 can be turned over.

Referring to fig. 1, a third mounting plate 9 is further included, spline shaft 3200 further penetrates through third mounting plate 9, spline shaft 3200 is rotatably connected with third mounting plate 9, third driving motor 3100 is fixed on third mounting plate 9, and fourth driving motor 7 is also mounted on third mounting plate 9.

Referring to fig. 4-6, two clamping devices 1 are symmetrically disposed, each clamping device 1 includes a first clamping plate 1100, a second clamping plate 1200, a fixing plate 1300, a sliding assembly 1400, a transmission assembly 1500, and a driving member 1600, the first clamping plate 1100 and the second clamping plate 1200 are parallel to each other, the sliding assembly 1400 is mounted on the fixing plate 1300, a sliding direction of the sliding assembly 1400 is perpendicular to the first clamping plate 1100, and a driving direction of the driving member 1600 is perpendicular to a sliding direction of the sliding assembly 1400.

Referring to fig. 7, the fixing plate 1300 has a first surface 1311 and an opposite second surface 1312, the first surface 1311 is provided with two grooves 1313, and an opening of the groove 1313 is provided with a fixing plate cover 1320. The first and second clamping plates 1100 and 1200 are respectively disposed at sides corresponding to the second surfaces 1312, and the first and second clamping plates 1100 and 1200 extend in a length direction of the fixing plate 1300, and the coupling shaft 3500 is fixedly coupled to the first surface 1311. The fixing plate 1300 is shaped like a plate, referring to fig. 6, a symmetry axis AA 'is defined by passing through a half of the length of the fixing plate 1300 and being perpendicular to the length direction thereof, and the two grooves 1313 are symmetrically disposed at both sides of the symmetry axis AA'. Two slide assemblies 1400 are disposed within each pocket 1313, one drive assembly 1500 for each pocket 1313. The sliding assembly 1400 and the transmission assembly 1500 are partially arranged in the groove 1313, so that the size of the whole clamping device can be reduced, and the clamping device is attractive.

Referring to fig. 10, the sliding assembly 1400 includes a sliding assembly 1400 including a guide rail 1410 and two sliding blocks 1420 slidably connected to the guide rail 1410. The sliding direction of the sliding assembly 1400 is perpendicular to the first clamping plate 1100 and the second clamping plate 1200, i.e., the extending direction of the guide rail 1410 is perpendicular to the first clamping plate 1100 and the second clamping plate 1200. In some embodiments, two slide assemblies 1400 are secured within each recess 1313. In some embodiments, referring to fig. 8, two elongated slots 1317 are formed on the bottom surface of the groove 1313, and two sliding members 1400 are respectively fixed in the elongated slots 1317. Slide assembly 1400 is disposed in elongated slot 1317 to provide a more compact configuration.

Referring to fig. 11, the transmission assembly 1500 includes two connecting members 1510, a first connecting rod 1530, a second connecting rod 1540, and a pull rod 1550, wherein the two connecting members 1510 are connected to the sliding assembly 1400, the two connecting members 1510 are parallel to each other and extend along the length direction of the first clamping plate 1100, and are respectively connected to the first clamping plate 1100 and the second clamping plate 1200, the first connecting rod 1530 and the second connecting rod 1540 are symmetrically disposed at two sides of the pull rod 1550, the first connecting rod 1530 and the second connecting rod 1540 are symmetrically disposed at two sides of the symmetry plane of the first connecting rod 1530 and the second connecting rod 1540, one end of the first connecting rod 1530 is hinged to one of the connecting members 1510, one end of the second connecting rod 1540 is hinged to the other connecting member 1510, the other ends of the first connecting rod 1530 and the second connecting rod 1540 are crossed to the same position of the pull rod 1550, and the pull rod 1550 is connected.

The hinge point of the first link 1530 and one of the links 1510 is defined as M, the hinge point of the second link 1540 and the other link 1510 is defined as N, and the hinge point of the first link 1530/the second link 1540 and the pull rod 1550 is defined as P. The first link 1530 and the second link 1540 are symmetrically disposed at both sides of the pull rod 1550, and the first link 1530 and the second link 1540 have the same length, that is, the distance from the hinge point M to the hinge point P is equal to the distance from the hinge point N to the hinge point P. When the pull rod 1550 is pulled or pushed to move the point P parallel to the first splint 1100 or the second splint 1200, the relative distance between the point M and the point N is shortened or lengthened, that is, the two connecting members 1510 move closer to or away from each other, and thus the first splint 1100 and the second splint 1200 move closer to or away from each other in synchronization.

A symmetrical plane of the first link 1530 and the second link 1540 is coplanar with a central axis of the second synchronizing wheel 3400, specifically, a central axis of the connecting shaft 3500 is coplanar with a symmetrical plane of the first link 1530 and the second link 1540, and the first splint 1100 and the second splint 1200 are symmetrically disposed at both sides of the symmetrical plane. After the product is conveyed to the right position by the feeding device 2, the first clamping plate 1100/the second clamping plate 1200 carry the product to move upwards, the second clamping plate 1200/the first clamping plate 1100 can also move downwards synchronously, finally, the two clamping plates just reach the symmetrical plane at the same time to stop, the product is clamped, the product is located on the symmetrical plane at the moment, and after the fixing plate 1300 is turned over for 180 degrees, the product is still located on the symmetrical plane without readjusting the focal length.

Referring to fig. 11 and 12, the connecting member 1510 includes a horizontal plate 1511, a protrusion 1512 vertically disposed from two ends of the horizontal plate 1511 to the same side, and a short shaft 1513 vertically disposed from the horizontal plate 1511 to the other side, the distances from the short shaft 1513 to the two protrusions 1512 are equal, and the ends of the short shaft 1513 are hinged to the first link 1530/the second link 1540. Specifically, the transverse plate 1511 is shaped like a strip, the protruding portion 1512 and the transverse plate 1511 are integrated, or may be welded, bolted, or the like, and the end of the short shaft 1513 and the transverse plate 1511 may be tightly connected by welding, interference fit, or the like. The two protrusions 1512 of one of the connectors 1510 penetrate through the fixing plate 1300 and are fixed to the first clamping plate 1100, and the other connector 1510 penetrates through the fixing plate 1300 and is fixed to the second clamping plate 1200. Each groove 1313 has two transverse plates 1511 therein, one block 1420 of the slider assembly 1400 is coupled to the transverse plate 1511 of one of the links 1510, and the other block 1420 of the slider assembly 1400 is coupled to the transverse plate 1511 of the other link 1510 such that the links 1510 can move toward and away from each other along the guide rails. Since the moving directions of the two link members 1510 are defined by the guide rails 1410, the force component in the direction along the guide rails 1410 drives the two link members 1510 to move closer to or away from each other in the direction perpendicular to the first clamping plate 1100, thereby achieving the approaching and moving away of the first clamping plate 1100 and the second clamping plate 1200 from each other.

Referring to fig. 8, a channel hole 1316 is formed in the recess 1313, the channel hole 1316 passes through the fixing plate 1300, the cross plate 5100 is formed in the recess 1313, and the protrusion 1512 passes through the channel hole 1316 and is fixedly connected to the other side of the first clamping plate 1100/the second clamping plate 1200. the channel hole 1316 has a length in a direction perpendicular to the first clamping plate 1100, so that the protrusion 1512 has a moving section in a direction perpendicular to the length of the first clamping plate 1100. in some embodiments, each of the recesses 1313 has four channel holes 1316 at the bottom thereof and is arranged in an array of 2 × 2.

The first link 1530, the second link 1540, and the drawbar 1550 are disposed outside the groove 1313. Referring to fig. 9, a cover through hole 1321 is formed in the fixing plate cover 1320 and extends perpendicular to the first clamping plate 1100. The fixing plate cover plate 3200 is fixed to the groove 1313, for example, by bolts, and the short shaft 1513 passes through the cover through hole 1321. The cover through hole 1321 provides a connection path for the connection 1510 to the first link 1530/second link 1540, while also providing sufficient space for the movement of the stub shaft 1513.

Referring to fig. 13, the drawbar 1550 includes a U-shaped member 1551 and a drawbar 1552 connected to a rear end of the U-shaped member 1551. The pull shaft 1552 and the clevis 1551 can be connected by welding or by bolts. The ends of first link 1530 and second link 1540 are disposed in the U-shaped openings, respectively, and are pinned to U-shaped member 1551.

In the present embodiment, the driving member 1600 is preferably a cylinder. The output end of the drive member 1600 is connected to a pull rod 1550, and in some embodiments, specifically the piston rod of the drive member 1600 is connected to the end of a pull shaft 1552. The driving direction of the driving member 1600 is parallel to the first clamping plate 1100 or the second clamping plate 1200, or perpendicular to the guide rail 1410. In this embodiment, the driving member 1600 is specifically mounted on the fixing plate cover 1320.

The clamping device of the present embodiment is particularly suitable for clamping sheet-like or plate-like objects. Two clamping devices are used in cooperation, for example, the two clamping devices are arranged oppositely, and the distance between the two clamping devices is equivalent to the width of the product, so that the two clamping devices can respectively clamp two opposite edges of the product. The clamping process of the clamping device is as follows: after the sheet or plate-like object is placed between the first clamping plate 1100 and the second clamping plate 1200, the piston rod of the control cylinder extends to push the hinge point P to advance, at this time, the hinge point M and the hinge point N approach each other along the direction of the guide rail 1410, the two connecting members 1510 approach each other along the direction of the guide rail 1410, and then the first clamping plate 1100 and the second clamping plate 1200 approach each other, and when the object is on the symmetrical plane of the first clamping plate 1100 and the second clamping plate 1200, the first clamping plate 1100 and the second clamping plate 1200 clamp the object. The clamping is cancelled in contrast to the above-described procedure, which is as follows: the piston rod of the control cylinder is contracted to pull the hinge point P back, and the hinge point M and the hinge point N are away from each other along the guide rail 1410, that is, the two connecting members 1510 are away from each other along the guide rail 1410, and further, the first clamping plate 1100 and the second clamping plate 1200 are away from each other, thereby removing the clamping of the object. The beneficial effects of the utility model are that, regard as rotation center in the middle part of fixed plate 1300, with clamping device upset 180 backs, the product of pressing from both sides between first splint 1100 and second splint 1200 keeps on same horizontal plane, and the laser head distance to laser engraving machine keeps unchangeable promptly.

Referring to fig. 14, the feeding device 2 is mounted on the fixing plate 1300, the feeding device 2 includes a first conveyor 2100 and a second conveyor 2200, the first clamping plate 1100 is disposed in the closed loop formed by the first conveyor 2100, and the second clamping plate 1200 is disposed in the closed loop formed by the second conveyor 2200. The product is conveyed to a set position by one of the conveyor belts, and then is conveyed out by the other conveyor belt after being overturned.

The feeding device 2 further comprises a first driving wheel 2300, a first driven wheel 2400, a second driving wheel 2500, a second driven wheel 2600, a first driving motor 2700 and a second driving motor 2800. The first driving pulley 2300, the first driven pulley 2400, and the first belt 2100 constitute a pulley transmission mechanism, the first driving pulley 2300 is coupled to an output shaft of the first driving motor 2700 by gear engagement, the second driving pulley 2500, the second driven pulley 2600, and the second belt 2200 constitute a pulley transmission mechanism, and the second driving pulley 2500 is coupled to an output shaft of the second driving motor 2800 by gear engagement.

The first and second conveyor belts 2100 and 2200 have the same length and the conveying direction thereof is parallel to the first or second nip plate 1100 or 1200. In this embodiment, the first conveyor belt 2100 is wound around the outer edge of the first nip 1100, and the second conveyor belt 2200 is wound around the outer edge of the second nip 1200. Preferably, the first driving wheel 2300, the first driven wheel 2400, the second driving wheel 2500 and the second driven wheel 2600 are all mounted on the fixed plate 1300 through bearings. The first driving wheel 2300 and the first driven wheel 2400 are respectively disposed at two ends of the first conveyor 2100 to drive the first conveyor 2100 to move. The second driving wheel 2500 and the second driven wheel 2600 are disposed at both ends of the second conveyor 2200, and drive the second conveyor 2200 to move. The first driving wheel 2300 and the second driven wheel 2600 are located at the same end, and the first driven wheel 2400 and the second driving wheel 2500 are located at the same end, so that the spatial arrangement is more reasonable. First drive wheel 2300 is fixed with first gear 2301, and second drive wheel 2500 is fixed with second gear 2501. The output end of the first driving motor 2700 is engaged with the first gear 2301 through a gear, and the first driving motor 2700 drives the first driving wheel 2300 to rotate so as to drive the first conveyor belt 2100 to move. The output end of the second driving motor 2800 is engaged with the second gear 2501 through a gear, and the second driving motor 2800 drives the second driving wheel 2500 to rotate, so as to drive the second conveyor belt 2200 to move. When the clamp device 1 is turned over, the gears are separated from each other to release the engagement, and when the clamp device 1 is turned over by 180 °, the gears are engaged again.

The two clamping devices 1 of the present embodiment are disposed opposite to each other. When the clamping device is used, the clamping plates of the clamping device 1 are in a horizontal state, a plate-shaped or sheet-shaped product enters between the first conveyor 2100 and the second conveyor 2200, the product is conveyed to a designated position through the conveyors and then stops, the first clamping plate 1100 and the second clamping plate 1200 are controlled to be relatively close to each other, and the conveyor and the product are clamped together by utilizing the flexible characteristic of the conveyor.

The utility model discloses can organically unify clamping device 1, material feeding unit 2, tilting mechanism 3, accomplish pay-off, press from both sides tightly, four actions of upset, the ejection of compact, can adjust the distance between clamping device 1 according to the product size to satisfy the mark demand of beating of not unidimensional specification product.

What has been described above are only some embodiments of the invention. For those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which are within the scope of the invention.

Claims (10)

1. The product movement mechanism for the laser marking machine with the variable width is characterized by comprising two clamping devices (1), a turnover mechanism (3), a first mounting plate (4) and a second mounting plate (5), and further comprising a screw pair, a second guide rail (6) and a fourth driving motor (7), wherein the screw pair comprises a ball screw (8) and a screw nut, the ball screw (8) and the second guide rail (6) vertically penetrate through the first mounting plate (4) and the second mounting plate (5), the ball screw (8) is rotatably connected with the first mounting plate (4), a flange part of the screw nut is fixedly connected with the second mounting plate (5), the second guide rail (6) is slidably connected with the second mounting plate (5), and the fourth driving motor (7) can drive the ball screw (8) to rotate, the two clamping devices (1) are respectively close to two opposite side faces of the first mounting plate (4) and the second mounting plate (5) and are respectively connected with the first mounting plate (4) and the second mounting plate (5), the first mounting plate (4) is fixed, the second mounting plate (5) can move towards or away from the first mounting plate (4), the turnover mechanism (3) comprises a third driving motor (3100), a spline shaft (3200), two first synchronizing wheels (3300), two second synchronizing wheels (3400) and two synchronous belts (3600), the third driving motor (3100) can drive the spline shaft (3200) to rotate around the central axis of the spline shaft, the two second synchronizing wheels (3400) are respectively and fixedly connected with the two clamping devices (1), and the first synchronizing wheel (3300) is connected with the second synchronizing wheel (3400) through the synchronous belts (3600), two first synchronous wheels (3300) are coaxially arranged with the spline shaft (3200), the spline shaft (3200) vertically penetrates through the first mounting plate (4) and the second mounting plate (5), a spline nut (3220) is sleeved on the spline shaft (3200), a first sleeve (3230) with a flange is sleeved on the periphery of the spline nut (3220), the flange part of the first sleeve (3230) is fixedly connected with the flange part of the spline nut (3220), a second sleeve pipe (3240) with a flange is coaxially arranged on the periphery of the first sleeve pipe (3230), a ball bearing (3250) is arranged between the second sleeve (3240) and the first sleeve (3230), the flange part of the second sleeve (3240) is fixedly connected with the second mounting plate (5), the first synchronous wheel (3300) is coaxially arranged on the periphery of the first sleeve (3230) and is connected with the first sleeve (3230) in a key mode.

2. The product movement mechanism for the laser marking machine with the variable width according to claim 1, wherein the clamping device (1) comprises a first clamping plate (1100), a second clamping plate (1200), a fixing plate (1300), a sliding assembly (1400), a transmission assembly (1500) and a driving part (1600), the first clamping plate (1100) and the second clamping plate (1200) are parallel to each other, the sliding assembly (1400) is mounted on the fixing plate (1300), the sliding direction of the sliding assembly (1400) is perpendicular to the first clamping plate (1100), the transmission assembly (1500) comprises two connecting members (1510), a first connecting rod (1530), a second connecting rod (1540) and a pull rod (1550), the two connecting members (1510) are connected with the sliding assembly (1400), the two connecting members (1510) are further connected with the first clamping plate (1100) and the second clamping plate (1200) respectively, the first connecting rod (1530) and the second connecting rod (1540) are symmetrically arranged at two sides of the pull rod (1550), one end of the first connecting rod (1530) is hinged with one connecting piece (1510), one end of the second connecting rod (1540) is hinged with the other connecting piece (1510), the other ends of the first connecting rod (1530) and the second connecting rod (1540) are connected to the same position of the pull rod (1550), the pull rod (1550) is connected with the driving component (1600), and the driving direction of the driving component (1600) is perpendicular to the sliding direction of the sliding component (1400).

3. The product moving mechanism for the laser marking machine with the variable width according to claim 2, wherein a symmetrical plane of the first link (1530) and the second link (1540) is coplanar with a central axis of the second synchronizing wheel (3400), and the first clamping plate (1100) and the second clamping plate (1200) are symmetrically disposed at both sides of the symmetrical plane.

4. The product movement mechanism for the laser marking machine with the variable width according to claim 2, characterized in that the fixing plate (1300) has a first surface (1311) and an opposite second surface (1312), the first clamping plate (1100) and the second clamping plate (1200) are located on the side where the second surface (1312) is located and extend along the length direction of the fixing plate (1300), the first surface (1311) is provided with two grooves (1313), each groove (1313) is provided with two sliding assemblies (1400), and each groove (1313) corresponds to one transmission assembly (1500).

5. The product movement mechanism for laser marking machine with variable width according to claim 4, characterized in that the sliding assembly (1400) comprises a guide rail (1410) and two sliding blocks (1420) slidably connected to the guide rail (1410), the guide rail (1410) extends in a direction perpendicular to the first clamping plate (1100).

6. The product movement mechanism for the laser marking machine with the variable width according to claim 5, wherein the connecting member 1510 comprises a transverse plate 1511, protruding parts 1512 vertically arranged from two ends of the transverse plate 1511 to the same side, and a short shaft 1513 vertically arranged from the transverse plate 1511 to the other side, the short shaft 1513 is equidistant from the two protruding parts 1512, one end of each of the first link 1530 and the second link 1540 is hinged to the short shaft 1513, a channel hole 1316 passing through the fixing plate 1300 is arranged in the groove 1313, the protruding parts 1512 pass through the channel holes 1316, the protruding part 1512 of one of the connecting members 1510 is fixedly connected with the first clamping plate 1100, the protruding part 1512 of the other connecting member 1510 is fixedly connected with the second clamping plate 1200, and two transverse plates 1511 are arranged in each groove 1313, one of the sliding blocks (1420) of the sliding assembly (1400) is connected with the transverse plate (1511) of one of the connecting pieces (1510), and the other sliding block (1420) of the sliding assembly (1400) is connected with the transverse plate (1511) of the other connecting piece (1510).

7. The product movement mechanism for the laser marking machine with the variable width according to claim 2, further comprising a feeding device (2), wherein the feeding device (2) is mounted on the fixing plate (1300), the feeding device (2) comprises a first conveyor belt (2100) and a second conveyor belt (2200), the first clamping plate (1100) is arranged in the closed loop formed by the first conveyor belt (2100), and the second clamping plate (1200) is arranged in the closed loop formed by the second conveyor belt (2200).

8. The product movement mechanism for the laser marking machine with the variable width according to claim 7, wherein the feeding device (2) further comprises a first driving wheel (2300), a first driven wheel (2400), a second driving wheel (2500), a second driven wheel (2600), a first driving motor (2700) and a second driving motor (2800), the first driving wheel (2300), the first driven wheel (2400) and the first conveying belt (2100) form a belt wheel transmission, the first driving wheel (2300) is connected to an output shaft of the first driving motor (2700) through gear engagement, the second driving wheel (2500), the second driven wheel (2600) and the second conveying belt (2200) form a belt wheel transmission, and the second driving wheel (2500) is connected to an output shaft of the second driving motor (2800) through gear engagement.

9. The variable-width product movement mechanism for the laser marking machine according to claim 1, further comprising a third mounting plate (9), wherein the spline shaft (3200) further passes through the third mounting plate (9), the spline shaft (3200) is rotatably connected with the third mounting plate (9), the third driving motor (3100) is fixed on the third mounting plate (9), and the fourth driving motor (7) is also mounted on the third mounting plate (9).

10. The product movement mechanism for the laser marking machine with the variable width as claimed in claim 9, characterized in that the turnover mechanism (3) further comprises a connecting shaft (3500), one end of the connecting shaft (3500) is coaxially fixed with the second synchronizing wheel (3400), the other end is vertically fixed with the fixing plate (1300), and the connecting shafts (3500) of the two turnover mechanisms (3) are further rotatably connected with the first mounting plate (4) and the second mounting plate (5) respectively.

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