A precision engraving machine for lens gate processing

Abstract

The invention discloses a precision engraving machine for lens gate processing, comprising a machine base and an outer cover arranged on the machine base; an FFU fan filter unit is arranged at the air inlet at the top of the outer cover, and an air outlet structure connected to the outside is arranged on the machine base; a support frame and two Y-direction conveying mechanisms arranged side by side along the X direction are arranged on the machine base; the support frame is provided with X-direction conveying mechanisms on the opposite sides along the Y direction, and a Z-direction conveying mechanism is arranged on the X-direction conveying mechanism; the Y-direction conveying mechanism comprises a base, a guide rail arranged on the base, and two independently controlled and controlled bearing platforms sliding on the guide rails, and the controlled bearing platforms are provided with lens pressing and positioning tooling for pressing and positioning the lens; the Z-direction conveying mechanism is provided with a processing electric spindle module and a CCD visual positioning module; and a lens pressing and positioning tooling. The invention has a simple structure, low cost, and strong customizability; and can not only meet the user's requirements for lens processing accuracy and quality, but also improve processing efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of product processing, and in particular relates to a precision engraving machine for lens gate processing. Background Art

[0002] With the continuous development and popularization of optical equipment, lenses are used more and more widely and in larger quantities, which leads to higher and higher requirements for lens processing quality and efficiency. At present, there is no precision engraving machine specifically used for lens gate processing on the market; although conventional precision engraving machines have a wide range of applications and can process metals and non-metals, they are large in size and expensive, and most rely on mechanical structures for positioning, with poor positioning accuracy. In addition, the lenses are prone to dust and impurities during processing, which affects the processing quality of the lenses, and cannot be processed alternately and continuously, resulting in low processing efficiency; as standard products, it is difficult to meet customers' customization needs.

[0003] In view of this, there is an urgent need to develop and design a special processing device with simple structure, low cost and strong customizability, which can not only meet the user's requirements for lens processing accuracy and quality, but also improve processing efficiency. Summary of the invention

[0004] In order to overcome the deficiencies in the above-mentioned prior art, the present invention provides a precision engraving machine for lens gate processing, which has a simple structure, low cost and strong customizability; and can not only meet the user's requirements for lens processing accuracy and quality, but also improve processing efficiency.

[0005] In order to solve the problems existing in the above-mentioned prior art, an embodiment of the present invention provides a precision engraving machine for lens gate processing, comprising a machine base and an outer cover arranged on the machine base; an FFU fan filter unit is arranged at the air inlet at the top of the outer cover, and an air outlet structure connected to the outside is arranged on the machine base;

[0006] The machine base in the outer cover is provided with two Y-direction conveying mechanisms arranged side by side along the X-direction, the machine base corresponding to the middle position of the Y-direction conveying mechanism is provided with a support frame, the support frame is provided with X-direction conveying mechanisms on opposite sides along the Y-direction, and each of the X-direction conveying mechanisms is provided with a Z-direction conveying mechanism;

[0007] Each of the Y-axis transport mechanisms includes a base, a guide rail arranged on the base, and two independently controlled supported platforms sliding on the guide rails, and each of the controlled supported platforms is provided with a lens pressing and positioning tool; each of the Z-axis transport mechanisms is provided with a processing electric spindle module and a CCD visual positioning module; the lens pressing and positioning tool is used to press and position the lens; the CCD visual positioning module is used to visually position the pressed and positioned lens; the processing electric spindle module is used to process the visually positioned lens.

[0008] Furthermore, a stator structure is provided on the base; each of the controlled supporting platforms includes a mover structure adapted to the stator structure and capable of relative movement, and a supporting platform connected to the mover structure and slidably mounted on the guide rail; when the mover structure is energized, it interacts with the stator structure to generate an electromagnetic thrust to drive the supporting platform to perform linear motion.

[0009] Furthermore, a grating scale assembly or a magnetic grating scale assembly is provided on the base; and a grating reading head adapted to the grating scale assembly or a magnetic grating reading head adapted to the magnetic grating scale assembly is provided on the mover structure.

[0010] Furthermore, the stator structure includes a U-shaped yoke and a stator magnet group arranged on two opposite inner walls of the U-shaped yoke; each of the mover structures includes a mover seat and a coil structure fixed on the mover seat; the coil structure extends into the U-shaped opening of the U-shaped yoke.

[0011] Furthermore, the Z-direction transport mechanism includes a mounting plate arranged on the moving part of the X-direction transport mechanism and a Z-direction moving part arranged on the mounting plate; a Z-direction tension spring is hung on the mounting plate, and one end of the Z-direction tension spring is connected to the moving part of the Z-direction moving part.

[0012] Furthermore, the machine base is provided with two tool setting instruments arranged along the Y direction; the two tool setting instruments are located on both sides of the support frame;

[0013] The machine base is also provided with two code scanners, and the Y-axis transport mechanism is located between the two code scanners.

[0014] Furthermore, the machine base is provided with a loading robot and / or a unloading robot.

[0015] Further, the lens pressing and positioning tooling comprises a supporting structure, a lens supporting seat slidably mounted on the supporting structure along the Y direction, a Y-direction driving structure mounted on the supporting structure and used to drive the lens supporting seat to move, a Z-direction driving structure arranged on the supporting structure, and a lens pressing seat connected to a driving portion of the Z-direction driving structure and located above the lens supporting seat; under the drive of the Z-direction driving structure, the lens pressing seat is used to press downwards the edge of the lens on the lens supporting seat that has moved into place to achieve positioning;

[0016] A waste collection structure is provided at the end of the support structure, and an air blowing structure is provided on the lens support seat; when the lens is processed, the air blowing structure is used to blow the debris generated during the processing into the waste collection structure.

[0017] Furthermore, a groove structure is provided on one side of the lens pressing seat facing the lens supporting seat; the groove structure is used to cooperate with the upper end surface of the lens supporting seat to form an air cavity, the lens is located in the air cavity, and the air outlet port of the air cavity corresponds to the collection port of the waste collection structure;

[0018] The air blowing structure comprises an air channel communicating with the air cavity and an air blowing joint communicating with the air channel.

[0019] Furthermore, the lens support seat comprises a seat body, and a mounting groove is provided on the seat body; a first cutting avoidance opening and a clamping opening adapted to an end of the gate away from the lens are provided on the seat body on one side of the mounting groove; the mounting groove, the first cutting avoidance opening and the clamping opening are connected in sequence;

[0020] A lens pad is installed in the installation groove; the lens is arranged on the lens pad and located in the installation groove; a groove is provided at the top of the lens pad, and a back pressure cavity is formed with the groove and the lower surface of the lens; the back pressure cavity is connected to the airway.

[0021] Due to the adoption of the above technical solution, the beneficial effects achieved by the present invention are as follows:

[0022] The invention discloses a precision engraving machine for lens gate processing, comprising a machine base and an outer cover arranged on the machine base; an FFU fan filter unit is arranged at the air inlet at the top of the outer cover, and an air outlet structure connected to the outside is arranged on the machine base; two Y-direction conveying mechanisms arranged side by side along the X-direction are arranged on the machine base in the outer cover; a support frame is arranged on the machine base corresponding to the middle position of the Y-direction conveying mechanism, and X-direction conveying mechanisms are respectively arranged on the opposite two sides of the support frame along the Y-direction, and each X-direction conveying mechanism is provided with a Z-direction conveying mechanism; the Y-direction conveying mechanism comprises a base, a guide rail arranged on the base, and two independently controlled and controlled bearing platforms sliding on the guide rails, and each controlled bearing platform is provided with a lens pressing and positioning tooling; each Z-direction conveying mechanism is provided with a processing electric spindle module and a CCD visual positioning module; the lens pressing and positioning tooling is used for pressing and positioning the lens; the CCD visual positioning module is used for visually positioning the pressed and positioned lens; and the processing electric spindle module is used for processing the visually positioned lens.

[0023] When in use, two lens pressing and positioning tools in one Y-axis conveying mechanism move to the loading station for loading, and the lens pressing and positioning tools press and position the loaded lenses; then the controlled carrier carries the corresponding lens pressing and positioning tools and moves to two processing stations respectively; the CCD visual positioning module visually positions the lens below it, and then the processing electric spindle module automatically and accurately processes the visually positioned lenses under the coordinated action of the X-axis conveying mechanism, the Y-axis conveying mechanism and the Z-axis conveying mechanism; at the same time, the two lens pressing and positioning tools in the other Y-axis conveying mechanism The lens pressing and positioning tool moves to the loading station for loading, and the lens pressing and positioning tool presses and positions the loaded lens; then the controlled carrier carries the corresponding lens pressing and positioning tool and moves to two processing stations to wait for processing; after the lens on the first Y-axis transport mechanism is processed, the processing electric spindle module moves into place and can directly process the lens on the second Y-axis transport mechanism that has been visually positioned without waiting; at this time, the two lens pressing and positioning tool on the first Y-axis transport mechanism move to the unloading station for unloading, and then return to the loading station to prepare for the next cycle. In addition, during the processing, the FFU fan filter unit and the air outlet structure cooperate with each other to ensure the cleanliness of the outer cover and prevent debris and dust from adhering to the lens.

[0024] The present invention utilizes two X, Y, and Z-axis conveying mechanisms and four lens pressing and positioning fixtures to realize alternating loading and continuous processing; there is no need to stop for waiting, which greatly reduces the processing time and improves the processing efficiency; and the lens pressing and positioning fixture is used to accurately mechanically position the lens, and the CCD visual positioning module is used to visually position the lens, which can meet the user's requirements for lens processing accuracy to the greatest extent; the FFU fan filter unit and the air outlet structure cooperate with each other, further ensuring the processing quality of the lens.

[0025] In summary, the present invention has a simple structure, low cost, and strong customizability; and can not only meet the user's requirements for lens processing accuracy and quality, but also improve processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of a precision engraving machine for lens gate processing of the present invention;

[0027] Figure 2 yes Figure 1 Schematic diagram of the structure after omitting the outer cover;

[0028] Figure 3 yes Figure 2 Schematic diagram of the structure from another perspective;

[0029] Figure 4 Figure 3 Schematic diagram of the local structure;

[0030] Figure 5 yes Figure 4 A schematic diagram of the structure of the Z-axis transport mechanism and its upper components;

[0031] Figure 6 yes Figure 4 A cross-sectional view of the Y-axis transport mechanism;

[0032] Figure 7 yes Figure 4 Exploded view of the structure of the middle lens pressing and positioning tooling;

[0033] Figure 8 It is a reference diagram of the state in which the lens pressing seat presses and positions the lens;

[0034] Fig. 9 yes Figure 8 a cross-sectional view along a first direction;

[0035] Fig.10 yes Figure 8 a cross-sectional view along a second direction;

[0036] In the figure: 1- base, 11- air outlet, 12- support frame, 121- X-direction transport mechanism, 13- tool setting instrument, 14- barcode scanner, 15- unloading manipulator, 2- outer cover, 21- FFU fan filter unit, 3- Y-direction transport mechanism, 31- base, 311- U-shaped stator structure, 312- grating scale assembly, 32- guide rail, 33- controlled bearing platform, 331- moving substructure, 332- bearing platform, 333- grating reading head, 4- Z-direction transport mechanism, 41- mounting plate, 42- Z-direction moving part, 43- Z-direction tension spring, 5- lens clamping and positioning fixture, 51- support structure, 52- lens support Seat, 521-first cutting avoidance opening, 522-clamping opening, 523-positioning pin, 524-sealing groove, 53-Y-direction driving structure, 54-Z-direction driving structure, 541-Z-direction driving member, 542-pressing plate, 5421-second cutting avoidance opening, 55-lens pressing seat; 551-groove structure, 552-positioning sleeve, 56-waste collection structure, 57-blowing structure, 571-air channel, 572-blowing joint, 58-lens pad, 581-groove, 6-processing electric spindle module, 7-CCD visual positioning module, 71-CCD camera, 72-light source, 8-lens, 81-gate. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0038] Depend on Figures 1 to 6As shown together, this embodiment discloses a precision engraving machine for lens gate processing, including a machine base 1 and an outer cover 2 arranged on the machine base 1; an FFU fan filter unit 21 is provided at the air inlet at the top of the outer cover 2, and an air outlet structure (shown as an air outlet hole 11) connected to the outside is provided on the machine base 1; two Y-direction conveying mechanisms 3 arranged side by side along the X direction are provided on the machine base 1 inside the outer cover 2, and a support frame 12 is provided on the machine base 1 corresponding to the middle position of the Y-direction conveying mechanism 3, and the support frame 12 is provided on the opposite two sides along the Y direction. Each of the X-axis conveying mechanisms 121 is provided with a Z-axis conveying mechanism 4; wherein each Y-axis conveying mechanism 3 comprises a base 31, a guide rail 32 arranged on the base 31, and two independently controlled and controlled bearing platforms 33 sliding on the guide rail 32, and each controlled bearing platform 33 is provided with a lens pressing and positioning tool 5; each Z-axis conveying mechanism 4 is provided with a processing electric spindle module 6 and a CCD visual positioning module 7; the lens pressing and positioning tool 5 is used to align the lens 8 (see Figure 7 ) for pressing and positioning; CCD visual positioning module 7 is used to visually position the lens 8 that is pressed and positioned; the processing electric spindle module 6 is used to process the lens 8 that has been visually positioned.

[0039] Among them: the support frame 12 includes two columns arranged on both sides of the Y-direction transport mechanism 3 and a crossbeam arranged on the columns (located above the middle of the guide rail 32), and the X-direction transport mechanism 121 (linear drive mechanisms such as electric cylinders and linear motors can be selected) is arranged on the crossbeam. One end of the guide rail 32 corresponds to the loading station and the other end corresponds to the unloading station; the guide rails 32 at the positions below the Z-direction transport mechanism 4 on both sides of the support frame 12 correspond to a processing station respectively; that is, one Y-direction transport mechanism 3 corresponds to the loading station, a processing station, another processing station and the unloading station in sequence along the Y direction.

[0040] The outer cover 2 includes a rectangular frame, a top plate is provided on the top of the rectangular frame, an air inlet is provided on the top plate, at least one side of the rectangular frame is provided with a safety door, and the remaining sides are provided with side plates. In order to adapt to four processing stations, two FFU fan filter units 21 are provided along the Y direction, and each FFU fan filter unit 21 includes a housing provided at the air inlet, two fans and filters provided in the housing along the X direction, and an air intake grille corresponding to the fan is provided at the top of the housing, and the filter is located below the corresponding fan.

[0041] In this embodiment, a stator structure (preferably a U-shaped stator structure 311, but may also be a flat stator structure, a cylindrical stator structure or a stator structure of other shapes) is provided on the base 31; each controlled support platform 33 includes a mover structure 331 extending into the U-shaped opening of the U-shaped stator structure 311 and capable of relative movement, and a support platform 332 connected to the mover structure 331 and slidably mounted on the guide rail 32; when the mover structure 331 is energized, it interacts with the U-shaped stator structure 311 to generate an electromagnetic thrust to drive the support platform 332 to perform linear motion.

[0042] Among them, the U-shaped stator structure 311 includes a U-shaped yoke and a stator magnet group arranged on the two opposite inner walls of the U-shaped yoke; the mover structure 331 includes a mover seat and a coil structure fixed on the mover seat; the coil structure extends into the U-shaped opening of the U-shaped yoke. In addition, the flat stator structure includes a plate-shaped yoke and a stator magnet group arranged on the plate-shaped yoke. The cylindrical stator structure includes a cylindrical yoke and a stator magnet group arranged on the inner circumferential wall of the cylindrical yoke. Compared with the flat stator structure and the cylindrical stator structure, the U-shaped stator structure 311 has a greater load-bearing capacity.

[0043] In order to achieve accurate control of the moving position of the carrier 332, the present embodiment further optimizes the above structure, and a grating scale assembly 312 (in some embodiments, a magnetic scale assembly) is arranged on the base 31; a grating reading head 333 (or a magnetic grating reading head adapted to the magnetic scale assembly) adapted to the grating scale assembly 312 is arranged on the mover seat in the mover structure 331. The position mark on the grating scale assembly 312 (magnetic scale assembly) is read by the grating reading head 333 (magnetic grating reading head), so that the relative position of the carrier 332 movement can be obtained.

[0044] In this embodiment, the Z-direction transport mechanism 4 includes a mounting plate 41 disposed on the moving part of the X-direction transport mechanism 121 and a Z-direction moving part 42 (which can be any linear moving part such as a cylinder, an electric cylinder, a linear motor, etc.) disposed on the mounting plate 41; a Z-direction tension spring 43 is hung on the mounting plate 41, and one end of the Z-direction tension spring 43 is connected to the moving part of the Z-direction moving part 42. The addition of the Z-direction tension spring 43 can reduce the influence of the gravity of the CCD visual positioning module 7 and the processing electric spindle module 6 on the moving part of the Z-direction moving part 42, thereby increasing reliability. Among them, the CCD visual positioning module 7 includes a CCD camera 71 and a light source 72 located below the CCD camera 71.

[0045] In addition, in this embodiment, two tool setting devices 13 arranged along the Y direction are provided on the machine base 1; the two tool setting devices 13 are located on both sides of the support frame 12; the tool setting devices 13 can be used to determine the reference coordinates of the electric spindle module 6 for processing, which is conducive to improving the processing accuracy. Two barcode scanners 14 arranged along the X direction are also provided on the machine base 1, and the Y-direction transport mechanism 3 is located between the two barcode scanners 14. The barcode scanner 14 is used to obtain the coding information of the lens 8 for archiving.

[0046] In this embodiment, a material unloading robot 15 is provided on the machine base 1 corresponding to the material unloading station; in some other embodiments, a material loading robot is provided on the machine base 1 corresponding to the material loading station; in some other embodiments, both a material loading robot and a material unloading robot 15 are provided on the machine base 1.

[0047] A control device is provided in the machine base 1, and the Y-axis conveying mechanism 3, tool setting instrument 13, barcode scanner 14, X-axis conveying mechanism 121, Z-axis conveying mechanism 4, lens pressing and positioning tool 5, CCD visual positioning module 7 and processing electric spindle module 6 are all electrically connected to the control device. In addition, the engraving machine also includes a touch screen electrically connected to the control device.

[0048] Depend on Figures 7 to 10 As shown together, in this embodiment, the lens pressing and positioning tool 5 includes a support structure 51 arranged on the supporting platform 332, a lens supporting seat 52 slidably installed on the support structure 51 along the Y direction, a Y-direction driving structure 53 installed on the support structure 51 and used to drive the lens supporting seat 52 to move, a Z-direction driving structure 54 arranged on the support structure 51, and a lens pressing seat 55 connected to the driving part of the Z-direction driving structure 54 and located above the lens supporting seat 52; under the drive of the Z-direction driving structure 54, the lens pressing seat 55 is used to press downward the edge of the lens 8 on the lens supporting seat 52 that has moved into place to achieve positioning.

[0049] In order to prevent debris from adhering to the surface of the lens 8 during the cutting process and affecting the processing quality, the present embodiment further improves the above structure. A waste collection structure 56 is provided at the end of the support structure 51, and a blowing structure 57 is provided on the lens support seat 52. When the gate 81 is cut, the blowing structure 57 is used to blow the debris generated during the cutting process into the waste collection structure 56.

[0050] Among them, a groove structure 551 adapted to the upper surface of the lens 8 is provided on the side of the lens pressing seat 55 facing the lens supporting seat 52; when the lens pressing seat 55 presses downwardly the edge of the lens 8 on the lens supporting seat 52 that has moved into place, the groove structure 551 is also used to cooperate with the upper end surface of the lens supporting seat 52 to form an air cavity. At this time, the lens 8 is located in the air cavity, and the air outlet port of the air cavity (a notch connected to the groove structure 551 is provided at one end of the lens pressing seat 55 facing the waste collection structure 56, and the notch is the air outlet port) corresponds to the collection port of the waste collection structure 56.

[0051] In this embodiment, the blowing structure 57 includes an air channel 571 communicating with the air cavity and an air blowing connector 572 communicating with the air channel 571; the air blowing connector 572 is used to connect to an external air source. The waste collection structure 56 includes a collection box, and the outlet of the collection box is connected to the air suction unit.

[0052] In this embodiment, the lens support seat 52 includes a seat body, and a mounting groove is provided on the seat body; a first cutting avoidance opening 521 and a clamping opening 522 (used to position the gate 81) adapted to the end of the gate 81 away from the lens 8 are provided on the seat body on one side of the mounting groove; the mounting groove, the first cutting avoidance opening 521 and the clamping opening 522 are connected in sequence; a columnar lens pad 58 is installed in the mounting groove; the lens 8 is arranged on the lens pad 58 and is located in the mounting groove.

[0053] In order to ensure that the gas in the air cavity can only be blown to the cutting part through the air outlet port, this embodiment further optimizes the above structure. A sealing groove 524 for installing a sealing strip is provided on the seat body on the other side of the installation groove. The sealing strip is used to achieve partial sealing of the air cavity except for the air outlet port position.

[0054] In order to further prevent cutting powder from entering the lower surface of the lens 8 from the peripheral gap between the lens pad 58 and the lens 8 during the cutting process, the present embodiment further optimizes the above structure; a groove 581 is set at the top of the lens pad 58, and the groove 581 and the lower surface of the lens 8 form a back pressure cavity; the back pressure cavity is connected to the airway 571, so that the airway 571 is filled with gas, which can prevent the entry of cutting powder.

[0055] In order to facilitate the loading and unloading robots (three clamping arms) to take and place the lens 8, the present embodiment further optimizes the above structure, and three loading and unloading avoidance grooves (avoidance clamping arms) arranged around the mounting groove and connected to the mounting groove are provided on the base body; a connecting hole for connecting the airway 571 and the air cavity is provided at the bottom of one of the loading and unloading avoidance grooves, and the other two loading and unloading avoidance grooves are connected to the first cutting avoidance port 521.

[0056] In order to further improve the accuracy of the lens 8 pressing and positioning, the present embodiment further improves the above structure. The improved lens pressing seat 55 is provided with a positioning sleeve 552 on the side facing the lens supporting seat 52; the lens supporting seat 52 is provided with a positioning pin 523 matched with the positioning sleeve 552.

[0057] In this embodiment, the Z-direction driving structure 54 includes two Z-direction driving members 541 (preferably a cylinder, but can be an electric cylinder or other linear driving member) and a pressure plate 542 connected to the driving part of the Z-direction driving member 541; the two Z-direction driving members 541 are respectively arranged on opposite sides of the support structure 51; the lens pressing seat 55 is fixed on the pressure plate 542, and a second cutting avoidance opening 5421 is provided on the pressure plate 542. The Y-direction driving structure 53 includes a Y-direction driving member (preferably a cylinder, but can also be an electric cylinder or other linear driving member), and the lens support seat 52 is connected to the driving part of the Y-direction driving member. In some other embodiments, the Y-direction driving structure 53 includes a rotating driving member, a screw rotatably mounted on the support structure 51 and connected to the rotating driving member, and a nut structure screwed on the screw; the lens support seat 52 is fixedly connected to the nut structure. When cutting the gate 81 exposed outside the lens pressing seat 55 , the processing electric spindle module 6 cuts the gate 81 with the help of the second cutting avoidance opening 5421 on the pressing plate 542 and the first cutting avoidance opening 521 on the lens supporting seat 52 .

[0058] In order to improve the stability and reliability of the movement process of the lens support seat 52, in this embodiment, a slide rail extending in the Y direction is provided on the support structure 51, and a slider is slidably installed on the slide rail; the lens support seat 52 is connected to the slider.

[0059] The following is a brief description of its working principle based on the above structure:

[0060] To facilitate the description of the working principle below, the loading station corresponding to the first Y-axis transport mechanism 3 is recorded as the first loading station, the unloading station is recorded as the first unloading station, and the two processing stations are respectively the first processing station and the second processing station; the loading station corresponding to the second Y-axis transport mechanism 3 is recorded as the second loading station, the unloading station is recorded as the second unloading station, and the two processing stations are respectively the third processing station and the fourth processing station.

[0061] The two lens pressing and positioning fixtures 5 in the first Y-axis conveying mechanism 3 move to the first loading station at one end of the guide rail 32, and the loading robot sequentially clamps the lenses 8 and places them on the two lens pressing and positioning fixtures 5, and the lens pressing and positioning fixtures 5 press and position the corresponding lenses 8; then the controlled carrier 33 carries the corresponding lens pressing and positioning fixtures 5 to move to the first processing station and the second processing station on both sides of the support frame 12 respectively; the CCD visual positioning module 7 and the processing electric spindle module 6 move along the X direction to the processing station corresponding to the Y-axis conveying mechanism 3; the CCD visual positioning module 7 visually positions the lens 8 below it, and then the processing electric spindle module 6 automatically and accurately processes the lens 8 after visual positioning under the coordinated action of the corresponding X-axis conveying mechanism 121, the Y-axis conveying mechanism 3 and the corresponding Z-axis conveying mechanism 4 (specifically: the processing electric spindle module 6 uses the second cutting avoidance opening 5421 on the pressing plate 542 and the first cutting avoidance opening 521 on the lens supporting seat 52 to cut the gate 81 exposed outside the lens pressing seat 55; during the cutting process, the blowing structure 57 blows the debris generated during the cutting process to the inlet of the collection box of the waste collection structure 56, and the suction unit connected to the outlet of the collection box sucks air, and the debris is collected in the collection box; to prevent the debris from adhering to the surface of the lens 8). At the same time, the two lens pressing and positioning tools 5 in the second Y-axis transport mechanism 3 move to the second loading station at one end of the guide rail 32, and the loading robot clamps the lenses 8 in turn and places them on the two lens pressing and positioning tools 5, and the lens pressing and positioning tools 5 press and position the lenses 8; then the controlled carrying platform 33 carries the corresponding lens pressing and positioning tools 5 to move to the third processing station and the fourth processing station respectively to wait for processing.

[0062] When the lens 8 on the first Y-axis transport mechanism 3 is processed, the Z-axis transport mechanism 4 moves along the X-axis to the second Y-axis transport mechanism 3. After the processing electric spindle module 6 moves to the right position, the lens 8 on the second Y-axis transport mechanism 3 that has moved to the third or fourth processing station and visually positioned can be directly processed without stopping for waiting. At the same time, the two lens pressing and positioning fixtures 5 on the first Y-axis transport mechanism 3 carry the processed lens 8 to the first unloading station at the other end of the guide rail 32. After the unloading robot 15 takes away the lens 8, the lens pressing and positioning fixtures 5 return to the first loading station to prepare for the next transport processing cycle.

[0063] The present invention utilizes two sets of X, Y, and Z-axis conveying mechanisms, four lens pressing and positioning fixtures, four processing stations, and two loading and unloading stations to realize alternating loading and continuous processing; no downtime or waiting is required, which greatly reduces the processing time and improves the processing efficiency; and the lens is precisely mechanically positioned by the lens pressing and positioning fixture, and the lens is visually positioned by the CCD visual positioning module, which can meet the user's requirements for lens processing accuracy to the greatest extent; the FFU fan filter unit and the air outlet structure cooperate with each other to further ensure the processing quality of the lens.

[0064] In summary, the present invention has a simple structure, low cost, and strong customizability; and can not only meet the user's requirements for lens processing accuracy and quality, but also improve processing efficiency.

[0065] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A precision engraving machine for lens gate processing, characterized in that: It includes a machine base and an outer cover arranged on the machine base; an FFU fan filter unit is arranged at the air inlet at the top of the outer cover, and an air outlet structure connected to the outside is arranged on the machine base; The machine base in the outer cover is provided with two Y-direction conveying mechanisms arranged side by side along the X-direction, the machine base corresponding to the middle position of the Y-direction conveying mechanism is provided with a support frame, the support frame is provided with X-direction conveying mechanisms on opposite sides along the Y-direction, and each of the X-direction conveying mechanisms is provided with a Z-direction conveying mechanism; Each of the Y-axis transport mechanisms comprises a base, a guide rail arranged on the base, and two independently controlled load-bearing platforms sliding on the guide rails, and each of the controlled load-bearing platforms is provided with a lens pressing and positioning tool; each of the Z-axis transport mechanisms is provided with a processing electric spindle module and a CCD visual positioning module; the lens pressing and positioning tool is used to press and position the lens; the CCD visual positioning module is used to visually position the pressed and positioned lens; the processing electric spindle module is used to process the visually positioned lens; The lens pressing and positioning tooling comprises a support structure, a lens support seat slidably mounted on the support structure along the Y direction, a Y-direction driving structure mounted on the support structure and used to drive the lens support seat to move, a Z-direction driving structure disposed on the support structure, and a lens pressing seat connected to a driving portion of the Z-direction driving structure and located above the lens support seat; under the drive of the Z-direction driving structure, the lens pressing seat is used to press downwards the edge of the lens on the lens support seat that has moved into place to achieve positioning; A waste collection structure is provided at the end of the support structure, and an air blowing structure is provided on the lens support seat; when the lens is processed, the air blowing structure is used to blow the debris generated during the processing into the waste collection structure; A groove structure is provided on the side of the lens pressing seat facing the lens supporting seat; the groove structure is used to cooperate with the upper end surface of the lens supporting seat to form an air cavity, the lens is located in the air cavity, and the air outlet port of the air cavity corresponds to the collecting port of the waste collecting structure; the blowing structure includes an air channel connected to the air cavity and a blowing joint connected to the air channel.

2. The engraving machine for lens gate processing according to claim 1, characterized in that: A stator structure is provided on the base; each of the controlled supporting platforms includes a mover structure adapted to the stator structure and capable of relative movement, and a supporting platform connected to the mover structure and slidably mounted on the guide rail; when the mover structure is energized, it interacts with the stator structure to generate electromagnetic thrust to drive the supporting platform to perform linear motion.

3. The engraving machine for lens gate processing according to claim 2, characterized in that: The base is provided with a grating scale assembly or a magnetic grating scale assembly; the mover structure is provided with a grating reading head adapted to the grating scale assembly or a magnetic grating reading head adapted to the magnetic grating scale assembly.

4. The engraving machine for lens gate processing according to claim 2 or 3, characterized in that: The stator structure includes a U-shaped yoke and a stator magnet group arranged on two opposite inner walls of the U-shaped yoke; each of the mover structures includes a mover seat and a coil structure fixed on the mover seat; the coil structure extends into the U-shaped opening of the U-shaped yoke.

5. The engraving machine for lens gate processing according to claim 1, characterized in that: The Z-direction transport mechanism comprises a mounting plate arranged on the moving part of the X-direction transport mechanism and a Z-direction moving part arranged on the mounting plate; a Z-direction tension spring is hung on the mounting plate, and one end of the Z-direction tension spring is connected to the moving part of the Z-direction moving part.

6. The engraving machine for lens gate processing according to claim 1, characterized in that: The machine base is provided with two tool setting instruments arranged along the Y direction; the two tool setting instruments are located on both sides of the support frame; The machine base is also provided with two code scanners, and the Y-axis transport mechanism is located between the two code scanners.

7. The engraving machine for lens gate processing according to claim 1, characterized in that: The machine base is provided with a loading manipulator and / or a unloading manipulator.

8. The engraving machine for lens gate processing according to claim 1, characterized in that: The lens support seat comprises a seat body, and a mounting groove is provided on the seat body; a first cutting avoidance opening and a clamping opening adapted to an end of the gate away from the lens are provided on the seat body on one side of the mounting groove; the mounting groove, the first cutting avoidance opening and the clamping opening are connected in sequence; A lens pad is installed in the installation groove; the lens is arranged on the lens pad and located in the installation groove; a groove is provided at the top of the lens pad, and a back pressure cavity is formed with the groove and the lower surface of the lens; the back pressure cavity is connected to the airway.

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