Optical fiber laser marking machine for photoelectric workpieces

Abstract

The present application relates to the technical field of photoelectric workpiece production, and particularly relates to a fiber laser marking machine for photoelectric workpieces, which comprises a photodiode, the photodiode comprises a cylindrical tube shell, one end of the tube shell is provided with a spherical end, the other end of the tube shell is provided with two tube pins, the tube shell is provided with an annular protrusion near the tube pins, the outer circumferential surface of the tube shell is provided with a marking area, and the marking machine further comprises a lower clamping conveying unit for conveying the photodiode. The photodiode clamped by the clamped structure is conveyed step by step by the lower clamping conveying unit, the photodiode is fixed by the spherical end through the fixed rotating unit every time the photodiode reaches the marking position, the upper clamping positioning unit is lowered through the driven lowering unit to limit the upper and lower positions of the photodiode, and the photodiode is rotated through the fixed rotating unit to be marked by the marking unit.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of photoelectric workpiece production, in particular to a fiber laser marking machine tool for photoelectric workpieces. BACKGROUND

[0002] Photoelectric workpieces are devices made by using the photoelectric effect of semiconductors, including phototubes, photomultiplier tubes, photoresistors, photosensitive diodes, photosensitive triodes, photocells, and optocoupler devices. Laser marking machines are the most advanced laser equipment currently available and have a wide range of applications, commonly used in the semiconductor integrated circuit industry, the jewelry and handicraft industry, and the household appliance industry, etc. The permanent and firm marking produced by the laser on the surface of the workpiece is a prominent feature. The principle is to expose the deep layer of material by evaporating the surface layer of material, thereby carving out exquisite patterns, trademarks, and text, with the advantages of permanence, anti-counterfeiting, non-contact, wide applicability, high carving precision, and low operating cost.

[0003] When laser marking a photosensitive diode, the marking position is the outer peripheral surface, as described in Figure 5 Therefore, it is necessary to rotate within a certain angle range to achieve the purpose of marking while rotating. The prior art uses manual rotation of the photosensitive diode for marking, which has a large human factor and causes technical problems such as uneven marking due to uneven rotation speed, and flattened marking due to the inclination of the photosensitive diode placement. In addition, in large-scale marking operations, the labor of the technicians is large and the labor efficiency is low.

[0004] Therefore, we propose a fiber laser marking machine tool for photoelectric workpieces to solve the above problems. SUMMARY

[0005] The present application aims to provide a fiber laser marking machine tool for photoelectric workpieces to solve the problems of low marking precision, large manual labor, and low marking efficiency in the prior art.

[0006] To achieve the above purpose, the present application adopts the following technical solutions:

[0007] The utility model provides a kind of optical fiber laser marking machine for photoelectric workpiece, including photo diode, the photo diode includes the cylindrical structure of tube shell, one end of the tube shell is equipped with spherical end, the other end of the tube shell is provided with two tube feet, the tube shell is equipped with annular protrusion near tube foot, the outer circumferential surface of the tube shell is equipped with marking area, the marking machine further includes the lower clamping conveying unit for conveying photo diode, is equipped with marking position near conveying terminal at the upper side of the lower clamping conveying unit, the marking machine further includes the upper clamping positioning unit for fixing the upper end of annular protrusion when photo diode reaches marking position, the fixed rotating unit for rotating photo diode, driven lowering unit connected with fixed rotating unit, marking unit for marking marking area;The lower clamping conveying unit and the upper clamping positioning unit are all provided with clamping structure, and the clamping structure in the lower clamping conveying unit is a plurality of evenly distributed, and the clamping structure in the upper clamping positioning unit is one, and the clamping structure in the lower clamping conveying unit and the upper clamping positioning unit is symmetrically distributed upside down in marking position, and the clamping structure includes fixed plate and two clamping plates with adjustable spacing arranged on one side of fixed plate;The fixed rotating unit includes telescopic equipment three arranged on one side of marking position, the end of telescopic equipment three is equipped with telescopic rod, the other end of telescopic rod is fixedly connected with marking rotary motor, the output end of marking rotary motor is fixedly connected with contact block, and spherical groove is formed in one side of contact block;The marking unit includes marking head arranged above marking position.

[0008] Preferably, the clamping structure further includes a rotating groove formed on one side of the fixed plate, a bidirectional screw rod is rotatably connected in the rotating groove, the clamping plates are symmetrically distributed, and are slidably connected with the rotating groove and threadedly connected with the bidirectional screw rod, the opposite sides of the two clamping plates are uniformly embedded with balls, one end of the bidirectional screw rod penetrates the rotating groove and is coaxially fixedly connected with a gear, the lower end of the gear engages with a toothed plate, and the clamping structure further includes telescopic equipment one arranged on one side of the fixed plate, and the telescopic end of the telescopic equipment one is fixedly connected with a toothed plate engaged with the gear.

[0009] Preferably, the lower clamping conveying unit further includes at least two transmission wheels, a conveying belt is sleeved on the at least two transmission wheels, and a conveying drive motor is arranged to drive one of the transmission wheels; the lower clamping conveying unit further includes an adaptive plate fixedly connected with the fixed plate and the conveying belt, the clamping plates are fixedly connected with a support plate close to the marking unit, and the upper end of the support plate is in an arc shape.

[0010] Preferably, the upper clamping positioning unit further comprises a fixed frame fixedly arranged above the clamping structure and a vertical rod fixedly connected to the upper end of the fixed plate, the upper end of the vertical rod penetrates through the fixed frame and is rotationally connected with a top wheel, the vertical rod is provided with a spring, and the two ends of the spring are fixedly connected with the fixed frame and the fixed plate respectively, and the driven descending unit comprises an inclined plate in rolling contact with the top wheel, and the slope of the inclined plate is adjustable.

[0011] Preferably, the driven descending unit further comprises an L-shaped pushing rod fixedly connected with the telescopic rod, the other end of the pushing rod is fixedly connected with an L-shaped driven frame, the lower end of the driven frame is hingedly connected with the lower end of the inclined plate, and the lower end of the driven frame is hingedly connected with a second telescopic device, and the telescopic end of the second telescopic device is hingedly connected with the upper end of the inclined plate.

[0012] Preferably, the spherical groove is embedded with a contact pad.

[0013] Preferably, the marking unit further comprises an infrared emitting end and an infrared receiving end arranged correspondingly above and below the marking position.

[0014] Preferably, the conveying end of the lower clamping conveying unit is provided with a buffer receiving unit.

[0015] Compared with the prior art, the present application has the following beneficial effects:

[0016] The present application steps the photosensitive diode clamped and limited by the lower clamping conveying unit, and whenever the photosensitive diode reaches the marking position, the fixed rotating unit fixes and rotates the photosensitive diode through the spherical end, at the same time, the upper clamping positioning unit is lowered by the driven descending unit to limit the photosensitive diode upward and downward, and the photosensitive diode is rotated by the fixed rotating unit to be marked by the marking unit. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 A front view structural schematic diagram of an optical fiber laser marking machine bed for optoelectronic workpieces is provided in the present application;

[0018] Figure 2 A structural schematic diagram of an enlarged view of A in the figure is provided in the present application; Figure 1 A structural schematic diagram of an enlarged view of B in the figure is provided in the present application;

[0019] Figure 3 A structural schematic diagram of an enlarged view of C in the figure is provided in the present application; Figure 1 A structural schematic diagram of an enlarged view of B in the figure is provided in the present application;

[0020] Figure 4 A structural schematic diagram of an enlarged view of C in the figure is provided in the present application; Figure 1 A structural schematic diagram of an enlarged view of C in the figure is provided in the present application;

[0021] Figure 5 A structural schematic diagram of a photosensitive diode of the prior art is provided in the present application.

[0022] In the figure:

[0023] 10 photodiode, 101 tube shell, 102 spherical end, 103 annular protrusion, 104 pin, 105 marking area;

[0024] 20 lower clamping conveying unit, 201 transmission wheel, 202 conveying belt, 203 conveying drive motor, 204 adaptive plate, 205 support plate;

[0025] 30 clamping structure, 301 fixed plate, 302 rotating groove, 303 bidirectional screw, 304 gear, 305 toothed plate, 306 telescopic device one, 307 clamping plate;

[0026] 40 upper clamping positioning unit, 401 fixed frame, 402 vertical rod, 403 spring, 404 top wheel;

[0027] 50 driven descending unit, 501 driven frame, 502 inclined plate, 503 telescopic device two, 504 push rod;

[0028] 60 fixed rotating unit, 601 telescopic device three, 602 telescopic rod, 603 marking rotating motor, 604 contact block, 605 spherical groove, 606 contact pad;

[0029] 70 marking unit, 701 marking head, 702 infrared transmitting end, 703 infrared receiving end. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments.

[0031] Reference Figures 1-5 A fiber laser marking machine for photoelectric workpieces, comprising a photodiode 10, the photodiode 10 being a prior art, specifically, the photodiode 10 comprises a cylindrical tube shell 101, the tube shell 101 is provided with a spherical end 102 at one end, the other end of the tube shell 101 is provided with two pins 104, the tube shell 101 is provided with an annular protrusion 103 near the pins 104, the outer circumferential surface of the tube shell 101 is provided with a marking area 105, Figure 1 The dashed area.

[0032] It should be noted that the tube shell 101, the spherical end 102, the annular protrusion 103, and the pin 104 are inherent structures of the photodiode 10, the present marking machine is suitable for marking operation of the photodiode 10 with this structure, and is not suitable for marking operation of other photoelectric workpieces with other structures.

[0033] The marking machine further comprises a lower clamping conveying unit 20 for conveying the photodiode 10, a marking position is set near the conveying end on the upper side of the lower clamping conveying unit 20, the photodiode 10 passing through the marking position continues to be conveyed after the marking is completed, the marking machine further comprises an upper clamping positioning unit 40 for fixing the upper end of the annular protrusion 103 when the photodiode 10 reaches the marking position, a fixing rotating unit 60 for rotating the photodiode 10, a driven lowering unit 50 connected with the fixing rotating unit 60, and a marking unit 70 for marking the marking area 105.

[0034] The basic concept of the present application is that the photodiode 10 clamped by the clamping structure 30 is conveyed step by step by the lower clamping conveying unit 20, the fixing rotating unit 60 fixes the photodiode 10 through the spherical end 102 every time the photodiode 10 reaches the marking position, and the upper clamping positioning unit 40 is lowered by the driven lowering unit 50 to limit the photodiode 10 upward and downward, the photodiode 10 is rotated by the fixing rotating unit 60 to be marked by the marking unit 70.

[0035] The lower clamping conveying unit 20 and the upper clamping positioning unit 40 both have the clamping structure 30, the clamping structure 30 in the lower clamping conveying unit 20 is a plurality of uniform distribution, the clamping structure 30 in the upper clamping positioning unit 40 is one, the clamping structure 30 located below can clamp a plurality of photodiodes 10 respectively, the clamping structure 30 located above can clamp the photodiode 10 reaching the marking position, the clamping structure 30 in the lower clamping conveying unit 20 and the upper clamping positioning unit 40 at the marking position is symmetrically distributed upward and downward, the clamping structure 30 comprises a fixed plate 301 and two clamping plates 307 arranged on one side of the fixed plate 301 with adjustable spacing, so as to be suitable for annular protrusions 103 of different thicknesses.

[0036] The clamping structure 30 further comprises a rotating groove 302 opened on one side of the fixed plate 301, a bidirectional screw rod 303 is rotatably connected in the rotating groove 302, the clamping plates 307 are symmetrically distributed and are slidably connected with the rotating groove 302 and threadedly connected with the bidirectional screw rod 303, the opposite sides of the two clamping plates 307 are uniformly embedded with balls, the balls are in rolling contact with the annular protrusion 103 to reduce the friction, the side surface of the clamping plate 307 adaptively has an arc-shaped groove, so as to limit the tube shell 101, one end of the bidirectional screw rod 303 penetrates through the rotating groove 302 and is coaxially fixedly connected with a gear 304, the lower end of the gear 304 engages with a toothed plate 305, the clamping structure 30 further comprises a telescopic device one 306 arranged on one side of the fixed plate 301, the telescopic end of the telescopic device one 306 is fixedly connected with the toothed plate 305 engaged with the gear 304, in the normal marking operation, the telescopic device one 306 is in the retracted state, and the toothed plate 305 is in the separated state from the gear 304.

[0037] The lower clamping conveying unit 20 further comprises at least two transmission wheels 201, the at least two transmission wheels 201 are sleeved with a conveying belt 202, the lower clamping conveying unit 20 further comprises a conveying driving motor 203 for driving one of the transmission wheels 201, the conveying driving motor 203 drives one of the transmission wheels 201 to drive the conveying belt 202 to convey; the lower clamping conveying unit 20 further comprises an adaptive plate 204 fixedly connected with the fixed plate 301 and the conveying belt 202, the adaptive plate 204 is made of rubber material to adapt to the conveying curved surface at the connection between the conveying belt 202 and the transmission wheel 201, and the clamping plate 307 close to the marking unit 70 is fixedly connected with a support plate 205, the upper end of the support plate 205 is in an arc structure, and the support plate 205 supports the pipe shell 101.

[0038] The conveying end of the lower clamping conveying unit 20 is provided with a buffer receiving unit, which is not shown in the figure and disclosed, and such a buffer receiving device also exists in the prior art, which will not be described here.

[0039] The upper clamping positioning unit 40 further comprises a fixed frame 401 fixedly arranged above the clamping structure 30 and a vertical rod 402 fixedly connected to the upper end of the fixed plate 301, the upper end of the vertical rod 402 penetrates through the fixed frame 401 and is rotationally connected with a top wheel 404, the vertical rod 402 is sleeved with a spring 403, and the two ends of the spring 403 are fixedly connected with the fixed frame 401 and the fixed plate 301 respectively, the driven descending unit 50 comprises an inclined plate 502 in rolling contact with the top wheel 404, and the vertical rod 402 and the clamping structure 30 are driven to descend by the top wheel 404 through the movement of the inclined plate 502. The inclination of the inclined plate 502 is adjustable, and the inclined plate 502 can be adjusted according to specific needs.

[0040] The driven descending unit 50 further comprises an L-shaped push rod 504 fixedly connected with the telescopic rod 602, the other end of the push rod 504 is fixedly connected with an L-shaped driven frame 501, the lower end of the driven frame 501 is hingedly connected with the lower end of the inclined plate 502, the lower end of the driven frame 501 is hingedly connected with a second telescopic device 503, the telescopic end of the second telescopic device 503 is hingedly connected with the upper end of the inclined plate 502, and the second telescopic device 503 drives the inclined plate 502 to rotate to adjust the inclination.

[0041] The fixed rotating unit 60 comprises a third telescopic device 601 arranged on one side of the marking position, the end of the third telescopic device 601 is provided with a telescopic rod 602, the other end of the telescopic rod 602 is fixedly connected with a marking rotating motor 603, the output end of the marking rotating motor 603 is fixedly connected with a contact block 604, the third telescopic device 601 drives the marking rotating motor 603 and the contact block 604, one side of the contact block 604 is provided with a spherical groove 605, and a contact pad 606 is embedded in the spherical groove 605, and the contact pad 606 improves the friction force with the spherical end 102.

[0042] The marking unit 70 comprises a marking head 701 arranged above the marking position, the marking area 105 is marked by the marking head 701, the marking unit 70 further comprises an infrared emission end 702 and an infrared receiving end 703 arranged correspondingly above and below the marking position, the infrared emission end 702 and the infrared receiving end 703 are used to judge whether it is empty.

[0043] The working process of the present application is as follows:

[0044] 1. Adjust the spacing of the two clamping plates 307 in the clamping structure 30 and the slope of the inclined plate 502 in the driven descending unit 50 according to the specifications of the photodiode 10 to be marked, so as to adapt to the ring-shaped protrusions 103 of different thicknesses and different outer diameters.

[0045] When adjusting the clamping structure 30, the telescopic device one 306 pushes out the toothed plate 305 with a certain width to engage with the gear 304, and under the transmission of the lower clamping transmission unit 20, the spacing of the two clamping plates 307 in the clamping structure 30 is adjusted in turn, in the transmission process, the gear 304 engages with the toothed plate 305 to drive the bidirectional screw 303 to rotate, and then drive the two clamping plates 307 to move relatively or oppositely;

[0046] When adjusting the slope of the inclined plate 502, the telescopic device two 503 pushes the inclined plate 502 to rotate around the lower end of the driven frame 501 to realize slope adjustment.

[0047] 2. The transmission driving motor 203 in the lower clamping transmission unit 20 drives one of the transmission wheels 201 to drive the plurality of clamping structures 30 to step transmission, the technician puts the ring-shaped protrusions 103 in the plurality of photodiodes 10 into the first section of the transmission belt 202 in turn, and the tube shell 101 in the photodiode 10 is placed on the supporting plate 205.

[0048] 3. When the photodiode 10 reaches the marking position, the infrared emitted by the infrared emission end 702 in the marking unit 70 is received by the infrared receiving end 703, which indicates that the photodiode 10 is not empty, avoiding damage to the related supporting structure caused by empty marking;

[0049] The telescopic device 601 in the fixed rotating unit 60 indirectly pushes the spherical groove 605 to contact the contact pad 606 until it contacts the spherical end 102, while the telescopic rod 602 moves the driven frame 501 and the inclined plate 502 through the pushing rod 504, the rolling contact between the inclined plate 502 and the top wheel 404 generates a downward force on the vertical rod 402 and the clamping structure 30 to limit and clamp the upper end of the annular protrusion 103 in the photosensitive diode 10, thereby stabilizing the position of the photosensitive diode 10, the marking rotating motor 603 drives the photosensitive diode 10 to rotate through the friction between the contact pad 606 and the spherical end 102, and the marking head 701 in the marking unit 70 can perform marking work on the marking area 105 in the photosensitive diode 10 during rotation.

[0050] It should be noted that the marking rotating motor 603 is a stepping motor, and the step angle is set according to the marking content.

[0051] 4、After the marking of the photosensitive diode 10 is completed, the contact block 604 is withdrawn, and the clamping structure 30 in the upper clamping and positioning unit 40 is raised and reset, and the conveying continues until the photosensitive diode 10 is stably discharged through the buffer and discharge unit under the action of gravity.

[0052] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can make equivalent replacement or change according to the technical solution and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. An optical fiber laser marking machine for optoelectronic workpieces, comprising a photosensitive diode (10), the photosensitive diode (10) comprising a cylindrical structure of a tube shell (101), one end of the tube shell (101) being provided with a spherical end (102), the other end of the tube shell (101) being provided with two tube pins (104), the tube shell (101) being provided with an annular protrusion (103) near the tube pins (104), and the outer circumferential surface of the tube shell (101) being provided with a marking area (105), characterized in that: The marking machine further comprises a lower clamping conveying unit (20) for conveying the photosensitive diode (10), a marking position is set near the conveying end on the upper side of the lower clamping conveying unit (20), the marking machine further comprises an upper clamping positioning unit (40) for fixing the upper end of the annular protrusion (103) when the photosensitive diode (10) reaches the marking position, a fixing rotating unit (60) for rotating the photosensitive diode (10), a driven descending unit (50) connected with the fixing rotating unit (60), and a marking unit (70) for marking the marking area (105). The lower clamping conveying unit (20) and the upper clamping positioning unit (40) both have clamping structures (30), the clamping structures (30) in the lower clamping conveying unit (20) are a plurality of uniformly distributed clamping structures (30), the clamping structure (30) in the upper clamping positioning unit (40) is one, and the clamping structures (30) in the lower clamping conveying unit (20) and the upper clamping positioning unit (40) at the marking position are symmetrically distributed, the clamping structure (30) comprises a fixed plate (301) and two clamping plates (307) arranged on one side of the fixed plate (301) at an adjustable interval, the fixing rotating unit (60) comprises a telescopic device three (601) arranged on one side of the marking position, an end of the telescopic device three (601) is provided with a telescopic rod (602), the other end of the telescopic rod (602) is fixedly connected with a marking rotating motor (603), the output end of the marking rotating motor (603) is fixedly connected with a contact block (604), and a spherical groove (605) is formed in one side of the contact block (604), and the marking unit (70) comprises a marking head (701) arranged above the marking position.

2. A fiber laser marking machine for optoelectronic workpieces according to claim 1, characterized in that The clamping structure (30) further comprises a rotating groove (302) formed in one side of the fixed plate (301), a bidirectional screw rod (303) is rotatably connected in the rotating groove (302), the clamping plates (307) are symmetrically distributed, are slidably connected with the rotating groove (302), and are threadedly connected with the bidirectional screw rod (303), the opposite sides of the two clamping plates (307) are uniformly embedded with balls, one end of the bidirectional screw rod (303) penetrates through the rotating groove (302) and is coaxially fixedly connected with a gear (304), the lower end of the gear (304) is engaged with a toothed plate (305), and the clamping structure (30) further comprises a telescopic device one (306) arranged on one side of the fixed plate (301), and the telescopic end of the telescopic device one (306) is fixedly connected with the toothed plate (305) engaged with the gear (304).

3. A fiber laser marking machine for optoelectronic workpieces according to claim 2, characterized in that: The lower clamping conveying unit (20) further comprises at least two transmission wheels (201), at least two transmission belts (202) are sleeved on the transmission wheels (201), and a conveying drive motor (203) is arranged for driving one of the transmission wheels (201); the lower clamping conveying unit (20) further comprises an adaptive plate (204) fixedly connected with the fixed plate (301) and the transmission belt (202), and the clamping plate (307) close to the marking unit (70) is fixedly connected with a supporting plate (205), and the upper end of the supporting plate (205) is in an arc structure.

4. A fiber laser marking machine for optoelectronic workpieces according to claim 2, characterized in that: The upper clamping positioning unit (40) further comprises a fixed frame (401) fixedly arranged above the clamping structure (30) and a vertical rod (402) fixedly connected with the upper end of the fixed plate (301), the upper end of the vertical rod (402) penetrates through the fixed frame (401) and is rotatably connected with a top wheel (404), a spring (403) is sleeved on the vertical rod (402), and the two ends of the spring (403) are fixedly connected with the fixed frame (401) and the fixed plate (301), respectively, and the driven descending unit (50) comprises an inclined plate (502) in rolling contact with the top wheel (404), and the slope of the inclined plate (502) is adjustable.

5. A fiber laser marking machine for optoelectronic workpieces according to claim 4, characterized in that: The driven descending unit (50) further comprises an L-shaped push rod (504) fixedly connected with the telescopic rod (602), the other end of the push rod (504) is fixedly connected with an L-shaped driven frame (501), the lower end of the driven frame (501) is hingedly connected with the lower end of the inclined plate (502), and the lower end of the driven frame (501) is hingedly connected with a second telescopic device (503), and the telescopic end of the second telescopic device (503) is hingedly connected with the upper end of the inclined plate (502).

6. A fiber laser marking machine for optoelectronic workpieces according to claim 1, characterized in that: The spherical groove (605) is inlaid with a contact pad (606).

7. A fiber laser marking machine for optoelectronic workpieces according to claim 1, characterized in that: The marking unit (70) further comprises an infrared transmitting end (702) and an infrared receiving end (703) arranged correspondingly above and below the marking position.

8. A fiber laser marking machine for optoelectronic workpieces according to claim 1, characterized in that: The conveying end of the lower clamping conveying unit (20) is provided with a buffer receiving unit.

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