CN117620449B - Mobile phone shell laser marking equipment and marking method thereof - Google Patents
Mobile phone shell laser marking equipment and marking method thereof Download PDFInfo
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- CN117620449B CN117620449B CN202410111201.2A CN202410111201A CN117620449B CN 117620449 B CN117620449 B CN 117620449B CN 202410111201 A CN202410111201 A CN 202410111201A CN 117620449 B CN117620449 B CN 117620449B
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- 238000010330 laser marking Methods 0.000 title claims abstract description 94
- 238000000034 method Methods 0.000 title abstract description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 26
- 229910052742 iron Inorganic materials 0.000 claims description 13
- 230000000149 penetrating effect Effects 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 230000001174 ascending effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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Abstract
The invention relates to a mobile phone shell laser marking device and a marking method thereof. The device comprises: laser marking heads; the XY axis moving assembly is used for driving the laser marking head to move along the X axis and/or the Y axis; the loading assembly comprises a supporting frame, a pressing locking assembly and four groups of telescopic corner ejector rods, wherein the pressing locking assembly is arranged on the supporting frame and is used for being switched into a locking state under the driving of pressing force, and the four groups of telescopic corner ejector rods which extend outwards respectively prop up four corners of the mobile phone shell from the inner side; the hollow conveying belt is used for conveying the supporting frame to the lower part of the laser marking head; the centering auxiliary assembly comprises a reference rod, a horn-shaped guide groove is formed in the bottom of the support frame, and the reference rod comprises an anastomotic part anastomotic with the guide groove, so that the center of the support frame, the center of the mobile phone shell, the zero point position of the laser marking head and the center of the marking pattern are aligned in the Z-axis direction. The device does not need to adjust the height of the laser marking head, and can ensure the marking precision.
Description
Technical Field
The invention relates to the technical field of laser marking, in particular to a mobile phone shell laser marking device and a marking method thereof.
Background
And the mobile phone shell is used for protecting or decorating the mobile phone. In recent years, the shape of the mobile phone is changed continuously, the shape of the mobile phone shell is changed, and the sizes of the mobile phone shells with different shapes are different.
Through laser marking, the brand mark can be marked on the mobile phone shell, and the brand awareness is improved. Before laser marking the mobile phone shell by using the laser marking machine, the mobile phone shell needs to be positioned. At present, the common positioning mode is that the mobile phone shell is placed on the marking table in an inverted mode, the positioning bolt which is movably inserted on the marking table in advance is pulled out, and then the positioning bolt is inserted at the appointed position of the marking table, so that the positioning bolt is attached to the outer surface of the side wall of the mobile phone shell, and when four groups of side walls of the mobile phone shell are attached to the four positioning bolts respectively, the positioning of the mobile phone shell is completed.
The positioning mode has some defects. Firstly, when positioning mobile phone shells with different sizes, the positions of a plurality of positioning bolts need to be manually adjusted so as to ensure that the positioning space formed by the positioning bolts is matched with the size of the mobile phone shells; secondly, because the positioning space formed by the positioning bolt is continuously changed, the center of the positioning space, the center of the mobile phone shell, the zero point position of the laser marking head and the center of the marking pattern are difficult to align on the same vertical line, namely, the alignment in the Z-axis direction cannot be realized, the position of the laser marking head is required to be adjusted according to the position of the positioning space, and deviation is easy to occur during adjustment; thirdly, when the mobile phone shells with different side wall heights are reversely buckled on the marking table, the height difference between the back shell of the mobile phone shell and the laser marking head is larger, so that the height of the laser marking head needs to be adjusted in order to ensure the accuracy of marking depth, and deviation is easy to occur during adjustment.
Therefore, there is a need to improve the existing laser marking machine to solve the problem that frequent adjustment and adjustment deviation are easy to occur when marking different mobile phone shells.
Disclosure of Invention
In view of the above, the present invention is directed to a laser marking device for a mobile phone shell and a marking method thereof, so as to solve the problem that frequent adjustment and adjustment deviation are easy to occur when marking different mobile phone shells.
In order to achieve the above-mentioned object,
the invention provides a mobile phone shell laser marking device, comprising:
laser marking heads;
the XY axis moving assembly is used for driving the laser marking head to move along the X axis and/or the Y axis;
the loading assembly comprises a supporting frame for supporting the inner top surface of the mobile phone shell, a down-pressing type locking assembly and four groups of telescopic corner ejector rods, wherein the down-pressing type locking assembly is used for being switched into a locking state under the driving of pressing force, and the four groups of telescopic corner ejector rods which extend outwards respectively prop up four corners of the mobile phone shell from the inner side;
the hollow conveying belt is used for conveying the supporting frame to the lower part of the laser marking head; and
The centering auxiliary assembly comprises a reference rod, wherein a horn-shaped guide groove is formed in the bottom of the support frame, and the reference rod comprises an anastomotic part anastomotic with the guide groove, so that the center of the support frame, the center of the mobile phone shell, the zero point position of the laser marking head and the center of the marking pattern are aligned in the Z-axis direction.
In some embodiments, the push-down locking assembly comprises a push-down drive assembly, a locking assembly;
the pushing driving assembly comprises a floating cover, a connecting rod, a driving block, a driven block and a vertical spring; wherein:
the floating cover is used for bearing pressing force;
one end of the connecting rod is fixed with the outer edge of the floating cover, and the other end of the connecting rod is fixed with the driving block;
a driving inclined plane is arranged on one side of the driving block, which is away from the connecting rod;
a driven inclined plane which is anastomotic with the driving inclined plane is arranged on one side of the driven block facing the connecting rod, and one side of the driven block facing away from the connecting rod is fixed with the telescopic corner ejector rod; the telescopic corner ejector rod is movably arranged on the supporting frame in a penetrating way;
the vertical spring is sleeved at the tail end of the floating cover, the upper end and the lower end of the vertical spring respectively support against the connecting rod and the supporting frame, and the locking assembly is used for locking the floating cover when the floating cover descends to the upper side surface of the supporting frame to be attached to the inner top surface of the mobile phone shell.
In some embodiments, the locking assembly comprises an iron sheet, a magnet; the iron sheet is fixed with the floating cover; the magnet is embedded and fixed on the support frame, and the magnet is used for sucking the iron sheet when the iron sheet descends to the upper side surface of the support frame to be attached to the inner top surface of the mobile phone shell.
In some embodiments, the push-down locking assembly further comprises a guide rod, a travel stop; the guide rod penetrates through the support frame; the upper end and the lower end of the guide rod are respectively fixed with the tail end of the floating cover and the travel baffle.
In some embodiments, the telescopic corner ejector rod comprises an inclined ejector rod, a rubber bulge and a horizontal spring; wherein:
the inclined jacking rod is movably arranged on the support frame in a penetrating manner, extends from the side edge of the support frame to the middle part, and one penetrating end of the inclined jacking rod is fixed with one side, deviating from the connecting rod, of the driven block;
the rubber bulges are spherical and are used for elastically contacting with corners of the mobile phone shell, the rubber bulges are fixed with one end of the inclined jacking rod, which is positioned at the side edge, the number of the rubber bulges is three, the rubber bulges are distributed along an arc line, and the rubber bulges positioned in the middle are opposite to the end part of the inclined jacking rod;
one end of the horizontal spring is embedded into the supporting frame, and the other end of the horizontal spring abuts against one side, deviating from the connecting rod, of the driven block.
In some embodiments, the centering assistance component further comprises a position switching component; the position switching component is used for driving the reference rod to switch the position between the first avoidance position and the centering position, when the position switching component is positioned in the centering position, the anastomotic part is blocked in front of the supporting frame, and when the position switching component is positioned in the first avoidance position, the anastomotic part is positioned below the supporting frame.
In some embodiments, the mobile phone case laser marking device further comprises a stop component; the intercepting component and the centering auxiliary component are sequentially arranged along the feeding direction of the hollow conveyor belt;
the stopping component comprises a stop rod and a linear cylinder; the straight-line cylinder is used for driving the stop lever so as to enable the stop lever to switch between a second avoidance position and a stop position, the stop lever is blocked in front of the support frame when the stop lever is positioned at the stop position, and the stop lever is positioned below the support frame when the stop lever is positioned at the second avoidance position.
In some embodiments, the support frame comprises a bottom bracket, a fork, wherein:
the bottom bracket and the fork body are provided with a plurality of bolts, and the other side of the bottom bracket is provided with a plurality of bolt holes corresponding to the bolts one by one; the hollow conveyor belt is used for conveying the bottom bracket, the down-pressing type locking assemblies and the telescopic corner ejector rods of each group are all installed on the fork body, and the guide groove is located at the bottom of the bottom bracket.
In some embodiments, the bottom bracket comprises a main bar, two support bars; wherein:
the length direction of the main rod is perpendicular to the conveying direction of the hollow conveying belt, and the length of the main rod is matched with the width of the hollow conveying belt;
the two bearing rods are perpendicular to the main rod and are fixed with the two ends of the main rod respectively; the matched bolt and the bolt hole are positioned at the end part of the fork body, and the other bolt hole is positioned at the end part of the bearing rod; the two ends of the supporting rod are provided with the bolt or the bolt hole.
The invention also provides a marking method of the mobile phone shell laser marking device, which is applied to the mobile phone shell laser marking device and comprises the following steps:
s100, reversely buckling the mobile phone shell on the support frame;
s200, applying pressing force to the downward-pressing type locking assembly until the downward-pressing type locking assembly is switched to a locking state, and respectively propping up four corners of the mobile phone shell from the inner side by four groups of telescopic corner ejector rods which extend outwards;
s300, the hollow conveyor belt conveys the supporting frame forwards, and the supporting frame is matched with the anastomotic part of the reference rod under the guidance of the guide groove; the support frame is positioned below the laser marking head, and the center of the support frame, the center of the mobile phone shell, the zero point position of the laser marking head and the center of the marking pattern are aligned in the Z-axis direction;
s400, the XY axis moving assembly drives the laser marking head to move along the X axis and/or the Y axis, and the mobile phone shell is marked.
Compared with the prior art, the invention has the beneficial effects that: firstly, because the telescopic corner ejector rod is telescopic, when the telescopic corner ejector rod is combined with the down-pressing type locking assembly for use, the positioning of the mobile phone shell with different sizes can be automatically adapted without manual adjustment; secondly, for the mobile phone shells with different sizes, compared with the height difference of the side wall, the thickness difference of the back shell is negligible, so that the influence of the thickness difference of the back shell of the mobile phone shells with different sizes on the marking depth is not great, and the mobile phone shells with different sizes are supported by the upper side of the supporting frame through the joint of the inner top surface and the supporting frame, so that the distance between the back shell to be marked and the laser marking head tends to be consistent by virtue of the loading assembly, and the laser marking head height does not need to be adjusted; thirdly, the transmission power of the hollow type conveyor belt, the guide groove of the support frame and the anastomotic part of the reference rod cooperate to realize the simultaneous transmission and positioning of the mobile phone shells with different sizes, so that the center of a positioning space provided by the loading assembly, the center of the mobile phone shell, the zero point position of the laser marking head and the center of the marking pattern are aligned in the Z-axis direction, and the marking precision is ensured.
Drawings
FIG. 1 is an exploded view of a laser marking device for a mobile phone shell provided by the invention;
fig. 2 is a schematic structural view of a guide groove on a mobile phone shell laser marking device provided by the invention;
FIG. 3 is a schematic view of the height difference in different positioning modes;
FIG. 4 is a schematic view of the distance between the back shell of two mobile phone shells and the laser marking head in the positioning mode provided by the invention;
fig. 5 is a schematic structural diagram of a loading assembly in the mobile phone shell laser marking device provided by the invention;
FIG. 6 is an enlarged view at A1 of FIG. 5;
FIG. 7 is an enlarged view at A2 of FIG. 5;
fig. 8 is a schematic structural diagram of a stop component in the mobile phone shell laser marking device provided by the invention;
fig. 9 is a schematic structural view of a bottom bracket in a mobile phone shell laser marking device provided by the invention;
fig. 10 is a schematic diagram of the overall structure of the mobile phone shell laser marking device provided by the invention;
fig. 11 is a schematic diagram of another overall structure of the mobile phone shell laser marking device provided by the invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Fig. 1 to 11 are diagrams for illustrating a structure and an operating principle of a mobile phone case laser marking apparatus provided by the present invention. Wherein:
arrow Z in fig. 1 indicates the Z-axis direction, and arrow D in fig. 1, 10, and 11 each indicates the feeding direction of the hollow conveyor 40.
The upper half of fig. 3 adopts the positioning mode provided by the invention to position two mobile phone shells, and the lower half of fig. 3 adopts the existing positioning mode to position two mobile phone shells. The left mobile phone shell is matched with the straight screen mobile phone, the right mobile phone shell is matched with the curved screen mobile phone, and therefore the side wall of the left mobile phone shell is straight, and the side wall of the right mobile phone shell is arc-shaped. Line L is a dashed line extending outwardly from the top edge of the back shell of the right hand handset housing, and line L 'is a dashed line extending outwardly from the top edge of the back shell of the right hand handset housing, both lines L and L' being used to indicate the height of the back shell. As can be seen from the figures: by adopting the positioning mode provided by the invention, as the lower edges of the two mobile phone shell back shells are attached to the supporting frame, the two mobile phone shell back shells are positioned at the same height, and the height difference of the upper edges of the two mobile phone shell back shells = the thickness difference of the two mobile phone shell back shells; when the existing positioning mode is adopted, as the lower edges of the side walls of the two mobile phone shells are attached to the upper surface of the marking table, the lower edges of the side walls of the two mobile phone shells are at the same height, and the height difference of the upper edges of the back shells of the two mobile phone shells=the height difference of the side walls of the two mobile phone shells. Obviously, the height difference of the positioning mode provided by the invention is smaller than that of the existing positioning mode.
Fig. 4 is a schematic diagram showing distances between two mobile phone shells and a laser marking head in the positioning mode provided by the invention, wherein the mobile phone shell at the left half part is the same as the mobile phone shell at the left half part in fig. 3, the mobile phone shell at the right half part is the same as the mobile phone shell at the right half part in fig. 3, and S' are distances between the lower edge of the laser marking head and the upper edge of the back shell of the mobile phone shell.
The mobile phone shell laser marking device provided by the invention, as shown in fig. 1 to 2, comprises:
a laser marking head 10;
an XY axis moving assembly 20 for driving the laser marking head 10 to move along the X axis and/or the Y axis;
the loading assembly 30 comprises a supporting frame 300 for supporting the inner top surface of the mobile phone shell 2, a pressing locking assembly 301 and four groups of telescopic corner ejector rods 302, wherein the pressing locking assembly 301 is used for being switched into a locking state under the driving of pressing force, and the four groups of telescopic corner ejector rods 302 which extend outwards respectively push up the four corners of the mobile phone shell 2 from the inner side;
a hollow conveyor belt 40 for conveying the support frame 300 to the lower side of the laser marking head 10; and
The centering auxiliary assembly 50 comprises a reference rod 500, a horn-shaped guide groove 3000 is arranged at the bottom of the support frame 300, and the reference rod 500 comprises an anastomotic part 5000 anastomotic with the guide groove 3000, so that the center of the support frame 300, the center of the mobile phone shell 2, the zero point position of the laser marking head 10 and the center of the marking pattern are aligned in the Z-axis direction.
The specific working process of the equipment is as follows:
first, the mobile phone case 2 is back-fastened to the support frame 300.
Secondly, pressing force is applied to the pressing locking assembly 301 until the locking assembly is switched to a locking state, and four groups of telescopic corner ejector rods 302 extending outwards respectively push up four corners of the mobile phone shell 2 from the inner side;
further, the hollow conveyor 40 conveys the support frame 300 forward, and the support frame 300 is engaged with the engaging portion 5000 of the reference lever 500 under the guide of the guide groove 3000; wherein the support frame 300 is located below the laser marking head 10, and the center of the support frame 300, the center of the mobile phone case 2, the zero point position of the laser marking head 10, and the center of the marking pattern are aligned in the Z-axis direction;
further, the XY axis moving assembly 20 drives the laser marking head 10 to move along the X axis and/or the Y axis to mark the mobile phone case 2.
Compared with the prior art, the invention has the beneficial effects that: firstly, because the telescopic corner ejector rod 302 is telescopic, when the telescopic corner ejector rod is combined with the pressing type locking assembly 301 for use, the positioning of the mobile phone shell 2 with different sizes can be automatically adapted without manual adjustment; secondly, for the mobile phone shells 2 with different sizes, compared with the height difference of the side walls, the thickness difference of the back shells is negligible, so that the thickness difference of the back shells of the mobile phone shells 2 with different sizes has little influence on the marking depth, and the mobile phone shells 2 with different sizes are supported by being attached to the upper sides of the supporting frames 300 through the inner top surfaces, so that the distance between the back shells to be marked and the laser marking heads 10 tends to be consistent by means of the loading assembly 30, and the height of the laser marking heads 10 is not required to be adjusted; thirdly, the transmission power of the hollow transmission belt 40, the guide groove 3000 of the support frame 300 and the anastomotic part 5000 of the reference rod 500 cooperate to realize the simultaneous transmission and positioning of the mobile phone shells 2 with different sizes, ensure the alignment of the center of the positioning space provided by the loading assembly 30, the center of the mobile phone shell 2, the zero position of the laser marking head 10 and the center of the marking pattern in the Z-axis direction, and ensure the marking precision.
As shown in fig. 5 to 6, the push-down lock assembly 301 includes a push-down drive assembly 3010, a lock assembly 3011;
the push-down drive assembly 3010 includes a floating cover 30100, a connecting rod 30101, a drive block 30102, a driven block 30103, and a vertical spring (not shown); wherein:
the floating cover 30100 is used for bearing a pressing force;
one end of the connecting rod 30101 is fixed to the outer edge of the floating cover 30100, and the other end of the connecting rod 30101 is fixed to the driving block 30102;
a driving inclined plane is arranged on one side of the driving block 30102 away from the connecting rod 30101;
a driven inclined plane which is matched with the driving inclined plane is arranged on one side of the driven block 30103 facing the connecting rod 30101, and one side of the driven block 30103 facing away from the connecting rod 30101 is fixed with the telescopic corner ejector rod 302; the telescopic corner ejector rod 302 is movably arranged on the support frame 300 in a penetrating way;
the vertical spring is sleeved at the tail end of the floating cover 30100, the upper end and the lower end of the vertical spring respectively press against the connecting rod 30101 and the supporting frame 300, and the locking component 3011 is used for locking the floating cover 30100 when the floating cover 30100 descends to the upper side surface of the supporting frame 300 to be attached to the inner top surface of the mobile phone shell 2.
In use, the floating cover 30100 is sunk by applying a downward pressure to the floating cover 30100 by a manipulator or manually, the driving block 30102 indirectly fixed to the floating cover 30100 by the connecting rod 30101 is sunk together with the floating cover 30100, by means of the cooperation of the driving inclined plane and the driven inclined plane, the driven block 30103 can be driven to move transversely by the descending of the driving block 30102, and the driven block 30103 drives the telescopic corner ejector rod 302 penetrating through the supporting frame 300 to extend outwards, so that the pushing of corners of the mobile phone shell 2 is realized. When the floating cover 30100 descends to the upper side surface of the supporting frame 300 to be attached to the inner top surface of the mobile phone shell 2, the locking component 3011 locks the floating cover 30100 to prevent the floating cover from ascending, so that the telescopic corner ejector rod 302 keeps an extending state, and the mobile phone shell 2 is continuously positioned. After laser marking is completed, an upward pulling force is applied to the floating cover 30100, so that the floating cover 30100 is separated from the locking range of the locking component 3011, the vertical spring is restored to the original shape, the floating cover 30100 is driven to float upwards, the telescopic corner ejector rod 302 can retract, and the positioning of the mobile phone shell 2 is relieved. The aforesaid push-down locking assembly 301 can drive a plurality of driving blocks 30102 through the floating cover 30100, finally realize the extension of four telescopic corner ejector pins 302, and driving efficiency is high, and has good stability. In addition, a coating (not shown) may be applied to the driving ramp and the driven ramp to reduce friction during movement of the two.
As shown in fig. 5-6, the lock assembly 3011 includes a sheet of iron 30110, a magnet (not shown); the iron sheet 30110 is fixed to the floating cover 30100; the magnet is embedded and fixed on the support frame 300, and is used for attracting the iron sheet 30110 when the iron sheet 30110 descends to the upper side surface of the support frame 300 to be attached to the inner top surface of the mobile phone case 2. The locking is realized through the iron sheet 30110 and the magnet, the structure is simple, and the installation is convenient.
As shown in fig. 5 to 6, the push-down locking assembly 301 further includes a guide rod 3012, a travel stop 3013; the guide rod 3012 penetrates the support frame 300; the upper and lower ends of the guide rod 3012 are fixed to the tail end of the floating cover 30100 and the stroke blocking piece 3013, respectively. The guide rod 3012 floats up or moves down along the support frame 300, so that stable and orderly movement of the floating cover 30100 can be ensured, when the floating cover 30100 floats up, the vertical spring can push the floating cover 30100, the ascending travel of the floating cover 30100 can be limited through the travel baffle 3013, and the movement controllability of the floating cover 30100 is ensured. In addition, after laser marking is completed, pushing force can be applied to the travel baffle 3013, so that the floating cover 30100 is driven to ascend and depart from the locking range of the locking assembly 3011.
As shown in fig. 5 to 7, the telescopic corner post 302 includes an inclined post 3020, a rubber projection 3021, and a horizontal spring (not shown); wherein:
the inclined jacking rod 3020 is movably arranged on the support frame 300 in a penetrating manner, extends from the side edge of the support frame 300 to the middle part, and one penetrating end of the inclined jacking rod 3020 is fixed with one side, away from the connecting rod 30101, of the driven block 30103;
the rubber protrusion 3021 is in a sphere shape and is used for elastically contacting with the corner of the mobile phone shell 2, the rubber protrusion 3021 is fixed with one end of the inclined push rod 3020, which is positioned at the side edge, the three rubber protrusions 3021 are distributed along an arc, and the middle rubber protrusion 3021 is opposite to the end part of the inclined push rod 3020;
one end of the horizontal spring is embedded into the supporting frame 300, and the other end of the horizontal spring presses one side of the driven block 30103, which faces away from the connecting rod 30101.
The horizontal spring is arranged in the middle of the support frame 300, and the inclined ejector rod 3020 is reset and retracted through the horizontal spring, so that the structure is simple and the cost is low; the rubber protrusion 3021 is spherical, the three rubber protrusions 3021 are distributed along the arc, the arrangement is well suitable for the characteristic that corners of the mobile phone shell 2 are round corners, multi-point positioning can be achieved on the corners, the rubber protrusion 3021 is elastic, and a certain buffering effect can be achieved when the inclined ejector rod 3020 extends outwards.
As shown in fig. 1, the centering assistance assembly 50 further includes a position switching assembly 501; the position switching component 501 is configured to drive the reference lever 500 to switch the position between the first avoidance position and the centering position, and when the position is in the centering position, the anastomotic part 5000 is blocked in front of the supporting frame 300, and when the position is in the first avoidance position, the anastomotic part 5000 is positioned below the supporting frame 300. Through the position switching of the position switching component 501, the reference rod 500 can enable the anastomotic part 5000 to be blocked in front of the support frame 300 to perform reference positioning when waiting for laser marking, and avoid the support frame 300 after laser marking is completed, so that the support frame 300 can flow to the next station with the mobile phone shell 2 after laser marking is completed, and high efficiency of laser marking work is ensured. Wherein the position switching assembly 501 includes, but is not limited to, a cylinder and a motor.
As shown in fig. 1 and 8, the mobile phone case laser marking apparatus further includes a stopping assembly 60; the stopping assembly 60 and the centering auxiliary assembly 50 are sequentially arranged along the feeding direction of the hollow conveyor belt 40;
the stopping assembly 60 comprises a stop lever 600 and a linear cylinder 601; the linear cylinder 601 is used for driving the stop lever 600 to perform position switching between a second avoidance position and a stop position, and when the stop position is located, the stop lever 600 is blocked in front of the support frame 300, and when the stop lever 600 is located at the second avoidance position, the stop lever 600 is located below the support frame 300.
By the shut-off assembly 60, the stability and accuracy of the laser marking process may be improved. When laser marking is performed on a batch of mobile phone shells 2, since the laser marking head 10 can only mark a single mobile phone shell 2 at a time, the mobile phone shells 2 that have not been subjected to laser marking need to wait outside the marking range of the laser marking head 10. When the laser marking head 10 does not complete the laser marking, the straight-line air cylinder 601 controls the stop lever 600 to stop at the stop position so as to stop the mobile phone shell 2 waiting for marking, and after the laser marking head 10 completes the laser marking, the straight-line air cylinder 601 controls the stop lever 600 to move to the second avoidance position, so that the mobile phone shell 2 waiting for the laser marking can move to the marking range of the laser marking head 10.
As shown in fig. 5 and 9, the support frame 300 includes a bottom bracket 3001, a fork 3002, wherein:
the opposite side surfaces of the bottom bracket 3001 and the fork body 3002 are fixedly provided with a plurality of bolts 30010, and the other side surface is provided with a plurality of bolt holes corresponding to the bolts 30010 one by one; the hollow conveyor 40 is used for conveying the bottom bracket 3001, the push-down locking assembly 301 and the telescopic corner push rods 302 of each group are all installed on the fork 3002, and the guide slot 3000 is located at the bottom of the bottom bracket 3001.
When the bottom bracket 3001 and the fork 3002 are required to be mounted, the plug 30010 is inserted into the plug hole, otherwise, when the fork 3002 is required to be dismounted, the bottom bracket 3001 and the fork 3002 are convenient to dismount. In addition, because the fork 3002 has more space in the front, back, left and right directions, it is more convenient to take and place the fork 3002 by hand. The bottom bracket 3001 and the fork 3002 are detachable, so that the bottom bracket 3001 can be always positioned on the hollow conveyor belt 40, and when the mobile phone shell 2 is to be disassembled, the fork 3002 can be taken out, so that the support frame 300 is more flexible to use.
As shown in fig. 1 and 9, the bottom bracket 3001 includes a main lever 30011, two support levers 30012; wherein:
the length direction of the main lever 30011 is perpendicular to the conveying direction of the hollow conveyor belt 40, and the length of the main lever 30011 is adapted to the width of the hollow conveyor belt 40;
the two bearing rods 30012 are perpendicular to the main rod 30011, and the two bearing rods 30012 are respectively fixed with two ends of the main rod 30011; mating latch 30010 and latch hole, one at the end of fork 3002 and the other at the end of support rod 30012; both ends of the support rod 30012 are provided with a latch 30010 or a latch hole.
The overall shape of the bottom bracket 3001 is similar to a cross, which can make room for other components, reduce the difficulty of adding components, and at the same time, make the bottom bracket 3001 lighter in weight, and reduce the load capacity requirements of the hollow conveyor 40. In addition, it is more convenient to take and place the bottom bracket 3001 by hand.
The invention also provides a marking method of the mobile phone shell laser marking device, which is applied to the mobile phone shell laser marking device and comprises the following steps:
s100, reversely buckling the mobile phone shell 2 on the supporting frame 300.
S200, applying a pressing force to the pressing locking assembly 301 until the locking state is switched, and pushing up four corners of the mobile phone case 2 from the inner side by four groups of telescopic corner push rods 302 extending outwards.
S300, the hollow conveyor belt 40 conveys the supporting frame 300 forwards, and the supporting frame 300 is matched with the matching part 5000 of the reference rod 500 under the guidance of the guide groove 3000; wherein the supporting frame 300 is located below the laser marking head 10, and the center of the supporting frame 300, the center of the mobile phone case 2, the zero point position of the laser marking head 10, and the center of the marking pattern are aligned in the Z-axis direction.
S400, the XY axis moving assembly 20 drives the laser marking head 10 to move along the X axis and/or the Y axis, and marks the mobile phone shell 2.
The marking method provided in this embodiment, because the above-mentioned mobile phone shell laser marking device is applied, at least has the advantages of the above-mentioned device, namely: firstly, because the telescopic corner ejector rod 302 is telescopic, when the telescopic corner ejector rod is combined with the pressing type locking assembly 301 for use, the positioning of the mobile phone shell 2 with different sizes can be automatically adapted without manual adjustment; secondly, for the mobile phone shells 2 with different sizes, compared with the height difference of the side walls, the thickness difference of the back shells is negligible, so that the thickness difference of the back shells of the mobile phone shells 2 with different sizes has little influence on the marking depth, and the mobile phone shells 2 with different sizes are supported by being attached to the upper sides of the supporting frames 300 through the inner top surfaces, so that the distance between the back shells to be marked and the laser marking heads 10 tends to be consistent by means of the loading assembly 30, and the height of the laser marking heads 10 is not required to be adjusted; thirdly, the transmission power of the hollow transmission belt 40, the guide groove 3000 of the support frame 300 and the anastomotic part 5000 of the reference rod 500 cooperate to realize the simultaneous transmission and positioning of the mobile phone shells 2 with different sizes, ensure the alignment of the center of the positioning space provided by the loading assembly 30, the center of the mobile phone shell 2, the zero position of the laser marking head 10 and the center of the marking pattern in the Z-axis direction, and ensure the marking precision.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A cell-phone shell laser marking device, characterized by comprising:
a laser marking head (10);
the XY axis moving assembly (20) is used for driving the laser marking head (10) to move along the X axis and/or the Y axis;
the loading assembly (30) comprises a supporting frame (300) for supporting the inner top surface of the mobile phone shell (2), a pressing locking assembly (301) and four groups of telescopic corner ejector rods (302), wherein the pressing locking assembly (301) is used for being switched into a locking state under the driving of pressing force, and the four groups of telescopic corner ejector rods (302) which extend outwards respectively push up four corners of the mobile phone shell (2) from the inner side;
a hollow conveyor belt (40) for conveying the support frame (300) to the lower part of the laser marking head (10); and
The centering auxiliary assembly (50) comprises a reference rod (500), wherein a horn-shaped guide groove (3000) is formed in the bottom of the support frame (300), the reference rod (500) comprises an anastomotic part (5000) anastomotic with the guide groove (3000), and the center of the support frame (300), the center of the mobile phone shell (2), the zero point position of the laser marking head (10) and the center of the marking pattern are aligned in the Z-axis direction;
the pressing-down type locking assembly (301) comprises a pressing-down driving assembly (3010) and a locking assembly (3011);
the pushing-down driving assembly (3010) comprises a floating cover (30100), a connecting rod (30101), a driving block (30102), a driven block (30103) and a vertical spring; wherein:
the floating cover (30100) is used for bearing a pressing force;
one end of the connecting rod (30101) is fixed with the outer edge of the floating cover (30100), and the other end of the connecting rod (30101) is fixed with the driving block (30102);
a driving inclined plane is arranged on one side of the driving block (30102) away from the connecting rod (30101);
a driven inclined plane which is matched with the driving inclined plane is arranged on one side, facing the connecting rod (30101), of the driven block (30103), and one side, facing away from the connecting rod (30101), of the driven block (30103) is fixed with the telescopic corner ejector rod (302); the telescopic corner ejector rod (302) is movably arranged on the supporting frame (300) in a penetrating way;
the vertical spring is sleeved at the tail end of the floating cover (30100), the upper end and the lower end of the vertical spring respectively press against the connecting rod (30101) and the supporting frame (300), and the locking component (3011) is used for locking the floating cover (30100) when the floating cover (30100) descends to the upper side surface of the supporting frame (300) to be attached to the inner top surface of the mobile phone shell (2);
the locking component (3011) comprises an iron sheet (30110) and a magnet; the iron sheet (30110) is fixed to the floating cover (30100); the magnet is embedded and fixed on the supporting frame (300), and is used for sucking the iron sheet (30110) when the iron sheet (30110) descends to the upper side surface of the supporting frame (300) to be attached to the inner top surface of the mobile phone shell (2).
2. The mobile phone shell laser marking device according to claim 1, wherein the pressing locking assembly (301) further comprises a guide rod (3012) and a travel stop piece (3013); the guide rod (3012) penetrates through the supporting frame (300); the upper end and the lower end of the guide rod (3012) are respectively fixed with the tail end of the floating cover (30100) and the travel stop piece (3013).
3. The mobile phone shell laser marking device according to claim 1, wherein the telescopic corner ejector rod (302) comprises an inclined ejector rod (3020), a rubber protrusion (3021) and a horizontal spring; wherein:
the inclined jacking rod (3020) is movably arranged on the support frame (300) in a penetrating mode, extends to the middle part from the side edge of the support frame (300), and one penetrating end of the inclined jacking rod (3020) is fixed with one side, away from the connecting rod (30101), of the driven block (30103);
the rubber bulges (3021) are spherical and are used for elastically contacting with corners of the mobile phone shell (2), the rubber bulges (3021) are fixed with one end of the inclined jacking rod (3020) at the side, the three rubber bulges (3021) are arranged along an arc, and the middle rubber bulges (3021) are opposite to the end part of the inclined jacking rod (3020);
one end of the horizontal spring is embedded into the supporting frame (300), and the other end of the horizontal spring abuts against one side, away from the connecting rod (30101), of the driven block (30103).
4. The mobile phone shell laser marking apparatus of claim 1 wherein the centering assistance assembly (50) further comprises a position switching assembly (501); the position switching assembly (501) is used for driving the reference rod (500) to switch the position between a first avoidance position and a centering position, when the position switching assembly is positioned in the centering position, the anastomotic part (5000) is blocked in front of the supporting frame (300), and when the position switching assembly is positioned in the first avoidance position, the anastomotic part (5000) is positioned below the supporting frame (300).
5. The cell phone shell laser marking apparatus of claim 1, wherein the cell phone shell laser marking apparatus further comprises a shut-off assembly (60); the stopping assembly (60) and the centering auxiliary assembly (50) are sequentially arranged along the feeding direction of the hollow conveyor belt (40);
the stopping assembly (60) comprises a stop lever (600) and a linear cylinder (601); the straight-line cylinder (601) is used for driving the stop lever (600) so as to enable the stop lever (600) to be switched between a second avoidance position and a stop position, when the stop position is located, the stop lever (600) is blocked in front of the support frame (300), and when the stop lever (600) is located in the second avoidance position, the stop lever (600) is located below the support frame (300).
6. The mobile phone shell laser marking apparatus of claim 1, wherein the support frame (300) comprises a bottom bracket (3001), a fork (3002), wherein:
the bottom bracket (3001) and the fork body (3002) are arranged on opposite side surfaces, one side surface is fixedly provided with a plurality of bolts (30010), and the other side surface is provided with a plurality of bolt holes which are in one-to-one correspondence with the bolts (30010); the hollow conveyor belt (40) is used for conveying the bottom bracket (3001), the push-down type locking assembly (301) and the telescopic corner ejector rods (302) of each group are all installed on the fork body (3002), and the guide groove (3000) is located at the bottom of the bottom bracket (3001).
7. The mobile phone shell laser marking device according to claim 6, wherein the bottom bracket (3001) comprises a main rod (30011) and two bearing rods (30012); wherein:
the length direction of the main rod (30011) is perpendicular to the conveying direction of the hollow conveying belt (40), and the length of the main rod (30011) is matched with the width of the hollow conveying belt (40);
the two bearing rods (30012) are perpendicular to the main rod (30011), and the two bearing rods (30012) are respectively fixed with two ends of the main rod (30011); the matched bolt (30010) and the bolt hole are positioned at the end part of the fork body (3002) and the other end part of the bearing rod (30012); both ends of the supporting rod (30012) are provided with the bolts (30010) or the bolt holes.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202410111201.2A CN117620449B (en) | 2024-01-26 | 2024-01-26 | Mobile phone shell laser marking equipment and marking method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202410111201.2A CN117620449B (en) | 2024-01-26 | 2024-01-26 | Mobile phone shell laser marking equipment and marking method thereof |
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| CN117620449B true CN117620449B (en) | 2024-04-09 |
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| KR20170047076A (en) * | 2015-10-22 | 2017-05-04 | 이노6 주식회사 | Substrate machining method |
| CN208094648U (en) * | 2018-03-28 | 2018-11-13 | 广东莱亿机械科技有限公司 | A kind of mobile phone lateral orifices size and depth detection marking equipment |
| CN113894430A (en) * | 2021-10-19 | 2022-01-07 | 湖北诺伯特科技有限公司 | Differential speed reducer shell marking device and application method thereof |
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| CN117620449A (en) | 2024-03-01 |
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