Adjustable workbench device for laser marking machine

Abstract

The invention discloses an adjustable workbench device of a laser marking machine. A containing cavity is provided on a table body below a laser lens, a spherical base is fixedly provided in the containing cavity, a workbench is fixedly installed on the top of the spherical base, a positioning assembly is provided on the workbench, and an I-shaped piece is connected to the positioning assembly; four vertical poles are fixedly installed in an array on the table body at the periphery of the workbench, and pushing units are arranged between two adjacent vertical poles, and the opposing pushing units are two groups of first pushing units arranged symmetrically and two groups of second pushing units arranged symmetrically; the I-shaped piece is fixed on the plane of a sample to be marked, the I-shaped piece and the workbench are fixedly connected, and the first pushing unit or the second pushing unit is pushed to approach the center of the workbench, and the I-shaped piece is squeezed by the pushing unit to change the angle of the spherical base, so that the horizontal adjustment of the sample to be marked is realized, and a plurality of planes with different angles can be quickly adjusted; the pushing unit surrounds the four sides of the workbench to avoid discomfort caused by human body contacting with light during the marking process.

Description

Technical Field

[0001] The invention relates to the technical field of laser marking, and in particular to an adjustable workbench device of a laser marking machine. Background Art

[0002] Laser marking machines use laser beams to make permanent marks on the surfaces of various materials. The effect of marking is to expose the deeper materials through the evaporation of the surface materials, thereby engraving exquisite patterns, trademarks and texts. When the surface to be marked has an inclined surface, it is necessary to adjust the level of the workbench before implementing the marking.

[0003] There is a slight gap between the optical path system of the laser marking machine and the workpiece to be marked, which will cause the marking depth of the workpiece to be marked to be different, and the marking effect will be significantly different, causing the marked workpiece to become defective or scrapped. Therefore, before marking, it is necessary to adjust the levelness of the surface to be marked on the workbench.

[0004] Chinese patent document CN113894755B discloses a workbench with adjustable processing angle, including a processing station for placing a workpiece to be processed and a lifting mechanism that can lift the processing station. Before the lifting mechanism lifts the processing station, the workpiece to be processed on the processing station is in a horizontal state. After the lifting mechanism lifts the processing station, the workpiece to be processed on the processing station is in an inclined state. A router laser marking machine is also provided, including a laser vision positioning processing mechanism, and also including the above-mentioned workbench with adjustable processing angle, and the laser vision positioning processing mechanism processes the workpiece to be processed on the workbench. The present invention adopts a lifting mechanism to change the inclined marking plane of the workpiece to be processed to a horizontal state, which is convenient for marking. In this way, only one processing equipment needs to be moved in the horizontal direction to complete the processing of the marking planes in two different parts.

[0005] In the prior art, the surfaces to be marked at different angles are adjusted by a device, but the structure is complicated, and the surface cannot be leveled for customized samples with different surface shapes, resulting in poor marking effect; at the same time, during the marking process, the laser is exposed to the outside, and the laser may cause damage to human eyes or skin. Summary of the invention

[0006] In view of the shortcomings of the prior art, the present invention provides an adjustable workbench device for a laser marking machine, which has a simple structure, is easy to operate, and can realize marking on multi-angle planes; the pushing unit in the device realizes angle adjustment and reset to enclose the workbench to prevent laser from harming the human body.

[0007] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: an adjustable workbench device of a laser marking machine, comprising a table body, a support frame is installed on the table body, a laser emitter is adjustably installed on the support frame, a laser lens is arranged on the laser emitter, a receiving cavity is provided on the table body below the laser lens, a spherical base is fixedly provided in the receiving cavity, a workbench is fixedly installed on the top of the spherical base, a positioning assembly is provided on the workbench, and an I-shaped piece is connected to the positioning assembly; four vertical poles are fixedly installed in an array on the table body at the periphery of the workbench, a pushing unit is arranged between two adjacent vertical poles, the opposing pushing units are two symmetrically arranged groups of first pushing units, and two symmetrically arranged groups of second pushing units, and four corner grooves are provided from top to bottom at the positive corners of the vertical poles of the workbench; the first pushing unit comprises a first pressing plate, the second pushing unit comprises a second pressing plate, and the first pressing plate and the second pressing plate are both The first pressing plate is symmetrically arranged, one end of the first pressing plate is provided with two first tenons, the two first tenons are respectively extended into the angle grooves for sliding installation, the first pressing plate is provided with two first through grooves, the first through grooves correspond to the two angle grooves without the first tenons installed, and are connected to the angle grooves on the two end vertical rods to form a sliding channel; one end of the second pressing plate is provided with two second tenons, the two second tenons are respectively slidably installed in the angle grooves connected with the first through grooves, the second pressing plate is provided with two second through grooves, the second through grooves correspond to the two angle grooves where the tenons of the first pressing plate are located, and are connected to the angle grooves on the two end vertical rods to form a sliding channel; the first pressing plate is connected to the first lifting plate through a lifting assembly, and the second pressing plate is connected to the second lifting plate through a lifting assembly; when the two first pressing plates on the opposite side or the two second pressing plates on the opposite side slide relative to each other to extrude the I-shaped piece, the angle of the spherical base is changed, thereby adjusting the horizontality of the sample at the bottom of the I-shaped piece;

[0008] As a preferred technical solution of the present invention, the positioning assembly includes two guide grooves opened in the longitudinal and transverse directions on the workbench adjacent to its own edge, and telescopic fastening rods are slidably installed in the guide grooves. A movable I-shaped piece is installed on one side of the workbench through a gooseneck rod. The telescopic fastening rod is detachably connected to the I-shaped piece. When positioning, the I-shaped piece is fixedly connected to the workbench through the telescopic fastening rod;

[0009] As a preferred technical solution of the present invention, the telescopic fastening rod is bent, and telescopic sleeves for adjusting the length are provided in two bending directions; a bottom bracket is provided at the bottom of the telescopic fastening rod, and the bottom bracket includes a screw portion and a chassis that are fixedly connected, the chassis abuts the bottom of the guide groove, and the screw portion passes through the guide groove and is fixedly connected to the telescopic fastening rod through a first threaded sleeve; a spherical joint is fixedly connected to one end of the telescopic fastening rod away from the guide groove, a locking screw is provided on the spherical joint for fixing the spherical joint, and a second threaded sleeve is fixedly provided at the free end of the spherical joint, and the second threaded sleeve is threadedly connected to a threaded head on the fixed I-shaped piece;

[0010] As a preferred technical solution of the present invention, the lifting assembly includes two pulleys symmetrically fixed on the outer side of the upper part of the vertical pole, the pulleys are located at both ends of the pressure plate, and a belt is movably abutted on the pulley, one end of the belt is fixedly connected to the upper part of the pressure plate, and the other end of the belt is fixedly connected to the top of the lifting plate, and a limiting groove is relatively opened between the two adjacent vertical poles, and both ends of the lifting plate are provided with a convex block, and the convex block is slidably installed in the limiting grooves at both ends;

[0011] As a preferred technical solution of the present invention, the I-shaped piece includes a guide block and an abutment block, the guide block and the abutment block are fixedly connected by a connecting rod, the adjacent end faces of the guide block are perpendicular to each other, the top of the guide block is parallel to the bottom of the abutment block, the adjacent side faces of the connecting rod are respectively fixed with threaded heads, and one side of the connecting rod is fixedly connected to one end of the gooseneck rod;

[0012] As a preferred technical solution of the present invention, the height of the guide block is greater than 3 times the inner width of the through slot;

[0013] As a preferred technical solution of the present invention, the edge portion of the guide block is rounded, and the edge portions of the first through groove and the second through groove are rounded;

[0014] As a preferred technical solution of the present invention, a pin hole is opened on the upper part of the pressing plate, and a pin rod is passed through the upper part of the lifting plate corresponding to the position of the pin hole;

[0015] As a preferred technical solution of the present invention, the workbench is provided with two detachable magnetic fixing seats, and the magnetic fixing seats are L-shaped;

[0016] As a preferred technical solution of the present invention, a method for adjusting using an adjustable workbench device of a laser marking machine includes the following steps:

[0017] S1, place the I-shaped piece on the sample for positioning: move the I-shaped piece and the gooseneck rod, place the abutment block at the bottom of the I-shaped piece on the surface to be marked on the sample, and make the abutment block and the surface to be marked on the sample fit each other;

[0018] S2, connecting the I-shaped member to the workbench: sliding the two telescopic fastening rods in the guide groove so that the two telescopic fastening rods correspond to the longitudinal and transverse positions of the I-shaped member respectively, and then adjusting the vertical telescopic rod and the horizontal telescopic rod on the telescopic fastening rod so that the second threaded sleeve contacts the threaded head, and adjusting the angle of the second threaded sleeve by screwing the spherical joint so that the second threaded sleeve is aligned with the threaded head and screwed and fixed;

[0019] S3, fix the I-shaped piece to the workbench: tighten the locking screw on the spherical joint to lock the spherical joint state; screw and fix the threaded sleeve on the telescopic fastening rod to limit the length change; tighten the first threaded sleeve and the bottom bracket to fix the telescopic fastening rod on the workbench;

[0020] S4, adjust the surface of the sample to be marked to a horizontal level: apply the same force to the two first pressing plates, with the force directions opposite to each other, so that the two first pressing plates slide relative to each other to extrude the I-shaped piece. When the extrusion tends to be stable and there is no displacement, remove the external force, and the first pressing plates are reset under the gravity of the first lifting plate;

[0021] Apply the same force to the two second pressing plates in opposite directions, so that the two second pressing plates slide relative to each other to extrude the I-shaped piece. When the extrusion tends to be stable and there is no displacement, remove the external force, and the second pressing plates are reset under the gravity of the second lifting plate; the surface of the sample to be marked is adjusted to be horizontal;

[0022] S5, tighten the spherical base and release the positioning assembly: tighten the locking screw to fix the spherical base to limit the angle change of the workbench; release the connection between the second threaded sleeve and the threaded head, release the fixed connection between the first threaded sleeve and the base, and move the telescopic fastening rod, I-shaped piece and gooseneck rod away from the sample.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. The present invention provides a containing cavity on a table body below a laser lens, a spherical base is fixedly arranged in the containing cavity, a workbench is fixedly installed on the top of the spherical base, a positioning assembly is arranged on the workbench, and an I-shaped piece is connected to the positioning assembly; 4 vertical poles are fixedly arranged in an array on the table body at the periphery of the workbench, and pushing units are arranged between two adjacent vertical poles, and the opposing pushing units are symmetrically arranged two groups of first pushing units and symmetrically arranged two groups of second pushing units; the I-shaped piece is fixed on an inclined plane of a sample to be marked, the I-shaped piece and the workbench are fixedly connected, and the first pushing units on both sides or the second pushing units on both sides are pushed toward the center of the workbench, and the pushing units squeeze the inclined I-shaped piece, triggering the I-shaped piece to generate a rotating force, so that the I-shaped piece drives the workbench to change its angle on the spherical base, so as to achieve leveling of the surface of customized samples with different surface shapes, and then implement laser marking.

[0025] During the sliding process, the first pushing unit and the second pushing unit form each other's sliding track, which has a simple structure and saves space. The device can quickly adjust multiple planes at different angles, which is efficient and convenient. Under normal circumstances, the pushing unit surrounds the four sides of the workbench to prevent dust or impurities from entering the laser marking working area, thereby ensuring the marking quality. The human body is not directly exposed to strong light during the marking process, thereby avoiding physical discomfort.

[0026] 2. The present invention fits and fixes the bottom of the I-shaped piece with the surface to be marked, converts the inclined surface to be adjusted to the upper part of the I-shaped piece, and realizes the leveling of the surface to be marked by leveling the inclination of the I-shaped piece, and the operation is intuitive and convenient; the I-shaped piece and the I-bench are fixedly connected by two movable telescopic fastening rods to meet the fixation of multiple positions on the workbench, which enhances the applicability of the equipment. The I-shaped piece can change its own angle and contact with the plane to be marked at different angles, so as to realize the rapid adjustment of the angles of multiple different inclined planes before marking. By applying the same force to the pushing unit on the opposite side, the pushing unit squeezes the I-shaped piece and adjusts the level, multiple different planes on the same sample can be quickly leveled and then laser marked, which has a simple structure, convenient operation, wide application, high efficiency and convenience.

[0027] 3. The pushing unit of the present invention includes a sliding pressing plate and a lifting plate that slides up and down. The pressing plate and the lifting plate are connected by a belt, and the belt is wound around a pulley. When the pushing plate slides and squeezes the I-shaped piece, the lifting plate moves upward under the traction of the belt. When the pushing plate completes the pushing and removes the external force, the pushing plate is reset under the action of the gravity of the lifting plate. The pushing plates and lifting plates around the workbench surround the workbench. The workbench surrounded by the pushing plate and the lifting plate prevents external dust or impurities from entering the working area and affecting the laser marking effect; during the laser marking process, it prevents direct observation of the human eye from causing damage and discomfort, and prevents the laser beam from directly irradiating the skin and causing burns; it enhances the stability and safety of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a three-dimensional schematic diagram of the installation structure of the device of the present invention;

[0029] Figure 2 It is a three-dimensional schematic diagram of the installation structure of the first pushing unit and the second pushing unit of the device of the present invention;

[0030] Figure 3 A three-dimensional schematic diagram of the positional relationship of the positioning components of the device of the present invention;

[0031] Figure 4 This is a three-dimensional schematic diagram of the installation state of the positioning component of the device of the present invention when fixing a sample;

[0032] Figure 5 It is a three-dimensional schematic diagram of the spherical base installation structure of the device of the present invention;

[0033] Figure 6 It is a top perspective schematic diagram of the first pushing unit and the second pushing unit of the device of the present invention;

[0034] Figure 7 Schematic diagram of the splitting of the first pushing unit and the second pushing unit of the device of the present invention Figure 1 ;

[0035] Figure 8 Schematic diagram of the splitting of the first pushing unit and the second pushing unit of the device of the present invention Figure 2 ;

[0036] Fig. 9 It is a three-dimensional schematic diagram of the disassembled structure of the working table and the telescopic fastening rod of the device of the present invention;

[0037] In the figure: 11, table; 12, laser transmitter; 13, laser lens; 14, support frame; 15, display; 16, keyboard; 17, accommodating cavity; 18, spherical base; 19, vertical pole; 20, first pressing plate; 21, first lifting plate; 22, second pressing plate; 23, second lifting plate; 24, workbench; 25, sample; 26, bottom bracket; 27, locking screw; 28, gooseneck rod; 29, I-shaped piece; 30, Abutment block; 31. Connecting rod; 32. Guide block; 33. Threaded head; 34. Angle groove; 35. First tenon; 36. First through groove; 37. Second through groove; 38. Limiting groove; 39. Pulley; 40. Belt; 41. Guide groove; 42. Telescopic fastening rod; 43. First threaded sleeve; 44. Spherical joint; 45. Second threaded sleeve; 46. Pin rod; 47. Pin hole; 48. Second tenon; 49. Magnetic fixing seat. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present invention will be clearly and completely described below in combination with the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0039] Contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field. In the description of the present invention, it should be understood that the orientation or position relationship indicated by the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. are based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0040] like Figure 1-Figure 9As shown, an adjustable workbench device of a laser marking machine comprises a table body 11, a support frame 14 is installed on the table body 11, a laser emitter 12 is adjustably installed on the support frame 14, a laser lens 13 is arranged on the laser emitter 12, and the characteristic is that a receiving cavity 17 is provided on the table body 11 below the laser lens 13, a spherical base 18 is fixedly provided in the receiving cavity 17, a workbench 24 is fixedly installed on the top of the spherical base 18, a positioning assembly is provided on the workbench 24, and an I-shaped piece 29 is connected to the positioning assembly; four vertical poles 19 are fixedly installed in an array on the table body 11 at the periphery of the workbench 24, a pushing unit is arranged between two adjacent vertical poles 19, the opposing pushing units are two groups of first pushing units arranged symmetrically, and two groups of second pushing units arranged symmetrically, and four corner grooves 34 are arranged from top to bottom at the positive corners of the vertical poles 19 facing the workbench 24;

[0041] The first pushing unit includes a first pressing plate 20, and the second pushing unit includes a second pressing plate 22. The first pressing plate 20 and the second pressing plate 22 are both symmetrically arranged. One end of the first pressing plate 20 has two first tenons 35, and the two first tenons 35 are respectively extended into the angle grooves 34 for sliding installation. The first pressing plate 20 is provided with two first through grooves 36. The first through grooves 36 correspond to the two angle grooves 34 without the first tenons 35 installed, and are connected to the angle grooves 34 on the two end vertical rods 19 to form a sliding channel.

[0042] One end of the second pressing plate 22 is provided with two second tenons 48, and the two second tenons 48 are respectively slidably installed in the angle grooves 34 communicated with the first through grooves 36. Two second through grooves 37 are provided on the second pressing plate 22, and the second through grooves 37 correspond to the angle grooves 34 where the tenons of the first pressing plate 20 are located, and connect the two angle grooves 34 on the two end vertical rods 19 to form a sliding channel; the first pressing plate 20 is connected to the first lifting plate 21 through a lifting assembly, and the second pressing plate 22 is connected to the second lifting plate 23 through a lifting assembly; when the two first pressing plates 20 on the opposite side or the two second pressing plates 22 on the opposite side slide relatively to extrude the I-shaped piece 29, the angle of the spherical base 18 changes, thereby adjusting the horizontality of the sample 25 at the bottom of the I-shaped piece 29.

[0043] Figure 1 As shown in the figure, a display 15 is installed on the support frame 14, and a mouse and a keyboard 16 are provided on the table body 11, which are all electrically connected to the host inside the table body 11, and the laser emitter 12 and the laser lens 13 are electrically connected to the host. The device is used by connecting an external power supply.

[0044] The laser emitter 12 is a device capable of generating laser light, and the laser lens is an optical element used to focus or collimate the laser beam, both of which are prior arts and will not be described in detail.

[0045] The spherical base 18 includes a ball head and a ball socket, wherein the ball head is the upper part of the spherical base, and the ball socket is a groove matching the ball head, and the ball head rotates freely in the ball socket; a fixed base is installed at the bottom of the ball socket, and a guide connector is installed at the top of the ball head. The spherical base 18 is commercially available and is prior art.

[0046] Figure 5 As shown in the figure, the spherical base 18 is installed at the bottom of the accommodating cavity 17, and a workbench 24 is fixedly installed on the top of the spherical base 18, which is used to adjust the inclination angle of the workbench 24 to adjust the angle of the non-horizontal laser marking work surface. The spherical base 18 can be adjusted in multiple directions, providing a high degree of flexibility and freedom. A locking screw 27 is installed on the spherical base 18, which is conducive to fixing after the angle adjustment is completed to avoid offset.

[0047] Figure 3 and Figure 4 As shown in the figure, a positioning assembly is provided on the workbench 24, and an I-shaped piece 29 is connected to the positioning assembly. When in use, the I-shaped piece 29 is placed on a non-horizontal laser marking surface, and the I-shaped piece 29 is fixed by the positioning assembly so that the I-shaped piece 29 is fixedly connected to the workbench 24. By adjusting the angle of the workbench 24, the horizontality of the workbench 24 can be changed.

[0048] The workbench 24 is kept at a certain distance from the surroundings of the accommodating cavity 17 to avoid interference with the accommodating cavity 17 when the inclination of the workbench 24 is adjusted.

[0049] Figure 4 and Figure 7 As shown in the figure, two first through grooves 36 are formed on the first pressing plate 20, and the first through grooves 36 are connected to the angle grooves 34 on the two end vertical rods 19 to form a sliding channel; two second through grooves 37 are formed on the second pressing plate 22, and the second through grooves 37 are connected to the angle grooves 34 on the two end vertical rods 19 to form a sliding channel;

[0050] The first through slots 36 and the second through slots 37 on both sides of the corner slots 34 are arranged with an upper and lower interval, which is beneficial to the stability of the pressing plate.

[0051] During use, when the first pressure plate 20 is pushed toward the workbench 24, the first tenons 35 at both ends of the first pressure plate 20 slide off the corner groove 34, slide in the second through groove 37 and then return to the corner groove 34; when the second pressure plate 22 is pushed toward the workbench 24, the second tenons 48 at both ends of the second pressure plate 22 slide off the corner groove 34, slide in the first through groove 36 and then return to the corner groove 34; when the first pressure plate 20 or the second pressure plate 22 slides alone, they provide slideways for each other.

[0052] The first pressing plate 20 is connected to the first lifting plate 21 through a lifting assembly, and the second pressing plate 22 is connected to the second lifting plate 23 through a lifting assembly; wherein, the first lifting plate 21 and the second pressing plate 22 are both provided with counterweights, and when the first pressing plate 20 or the second pressing plate 22 is pushed toward the direction close to the workbench 24, the first lifting plate 21 or the second pressing plate 22 will be lifted, and when the external pushing force is removed, due to the action of gravity, the first lifting plate 21 or the second pressing plate 22 falls freely, driving the first pressing plate 20 or the second pressing plate 22 to reset.

[0053] During the adjustment process, when the plane to be marked of the sample 25 is not horizontal, the bottom of the I-shaped piece 29 is fitted with the surface to be marked of the sample 25, and then the I-shaped piece 29 is fixed by the positioning assembly to achieve a fixed connection between the I-shaped piece 29 and the workbench 24.

[0054] Push the two opposite first pressing plates 20 or the two opposite second pressing plates 22 toward the direction close to the workbench 24. When the I-shaped piece 29 is tilted, push the two opposite pressing plates toward each other (apply the same force and in opposite directions) to squeeze the I-shaped piece 29. The upper edge of one side of the I-shaped piece 29 abuts against the pressing plate on one side, and the lower edge of the other side abuts against the pressing plate on the other side. Under the action of external forces on both sides, the tilted I-shaped piece 29 bears the anti-tilting force, and the I-shaped piece 29 drives the workbench 24 to change its angle on the spherical base 18 together until the two sides of the I-shaped piece 29 fit the pressing plate surfaces on both sides. The horizontal adjustment of the surface to be marked of the sample 25 in the horizontal or vertical direction is realized; after the external force is removed, the pressing plate automatically resets under the gravity of the lifting plate.

[0055] According to the above steps, make adjustments in another direction and finally complete the horizontal adjustment of the surface to be marked.

[0056] It should be noted that during the adjustment process, the upper edge of the I-beam 29 contacts the pressure plate on one side to form a contact point, and the lower edge of the I-beam 29 contacts the pressure plate on the other side to form a contact point (the forces acting on the two contact points are the same and in opposite directions). Relative to the rotatable spherical base 18, two opposite torques are formed, with the same fulcrum, the same forces, different lever arms, and different torques on both sides. The moment generated by the contact point at the upper edge away from the spherical base 18 is greater than the torque generated at the lower edge. As a result, the inclined upper edge of the I-beam 29 will move in the opposite direction of the tilt until the torques generated on both sides are the same and the I-beam 29 tends to be stable, and this direction is leveled.

[0057] During the adjustment process, if there is an angle between the I-beam 29 and the contact surface of the pressure plate in the horizontal or vertical direction, under the action of the extrusion pressure on both sides, the I-beam 29 will have a rotational force, and this rotational force will drive the workbench 24 and the spherical base 18 to rotate together until the contact surface of the I-beam 29 and the pressure plate are completely in contact.

[0058] During the process of tilting, adjusting or rotating the workbench 24 , there is no interference with the periphery of the accommodating cavity 17 , and sufficient space is reserved; the workbench 24 can also be set to be circular.

[0059] In the present invention, when the pressing plate extrude the I-shaped piece 29, there is a gap error, which is within a normal error range and does not affect the quality of laser marking.

[0060] Furthermore, the positioning assembly includes two guide grooves 41 opened along the longitudinal and transverse directions on the workbench 24 adjacent to its own edge, and a telescopic fastening rod 42 is slidably installed in the guide grooves 41. A movable I-shaped piece 29 is installed on one side of the workbench 24 through a gooseneck rod 28. The telescopic fastening rod 42 is detachably fixedly connected to the I-shaped piece 29, so that the I-shaped piece 29 is fixedly connected to the workbench 24.

[0061] Figure 3 and Figure 4 As shown in the figure, the gooseneck rod 28 can flexibly adjust the angle and height under the action of external force, and can maintain the state at that time. It is commercially available and is a prior art, so it will not be described in detail here. The end of the gooseneck rod 28 is fixedly connected to the I-shaped piece 29, which is used to temporarily fix the position of the I-shaped piece 29. The bottom of the I-shaped piece 29 is placed on the inclined sample to be marked, and then the two telescopic fastening rods 42 are adjusted to slide in the guide groove 41 to the position corresponding to the I-shaped piece 29, and the telescopic fastening rods 42 are fixed to the workbench 24. The telescopic fastening rods 42 in two directions are fixed to the I-shaped piece 29, so that the I-shaped piece 29 is fixedly connected to the workbench 24; when the I-shaped piece 29 is pushed, the I-shaped piece 29 and the workbench 24 together appear an offset angle on the spherical base 18.

[0062] Furthermore, the telescopic fastening rod 42 is bent, and telescopic sleeves for adjusting length are provided in two bending directions; a base 26 is provided at the bottom of the telescopic fastening rod 42, and the base 26 includes a screw portion and a chassis that are fixedly connected, and the chassis abuts the bottom of the guide groove 41, and the screw portion passes through the guide groove 41 and is fixedly connected to the telescopic fastening rod 42 through a first threaded sleeve 43; a spherical joint 44 is fixedly connected to one end of the telescopic fastening rod 42 away from the guide groove 41, and a locking screw is provided on the spherical joint 44 for fixing the spherical joint 44, and a second threaded sleeve 45 is fixedly provided at the free end of the spherical joint 44, and the second threaded sleeve 45 is threadedly fixed to the threaded head 33 on the I-shaped member 29.

[0063] Figure 3 , Figure 4 and Fig. 9As shown in the figure, when the telescopic fastening rod 42 slides in the guide groove 41 to the position corresponding to the I-shaped member 29, the telescopic fastening rod 42 is fixed on the workbench 24. By adjusting the positions of the two telescopic fastening rods 42 in the longitudinal and transverse directions and adjusting the length of the telescopic fastening rod 42 in the horizontal direction or the vertical direction, the I-shaped member 29 can be fixed at multiple positions on the workbench 24.

[0064] Figure 4 As shown in FIG, when the thread head 33 on the I-shaped member 29 has an inclined angle, the connection is made after adjustment through the spherical joint 44, and the movement of the spherical joint 44 is limited by screwing the locking screw on the spherical joint 44 to fix the connection state.

[0065] Fig. 9 As shown in , the telescopic fastening rod 42 adopts a telescopic sleeve to adjust the length, and a threaded sleeve and a threaded joint are used at the connection of the telescopic sleeve for fixed connection. A plurality of notches are arranged on the threaded joint to facilitate the screwing and fastening of the nut.

[0066] Furthermore, the lifting assembly includes two pulleys 39 symmetrically fixed on the outer side of the upper part of the vertical rod 19, and the two pulleys 39 are located at both ends of the first pressure plate 20; the two pulleys 39 are located at both ends of the second pressure plate 22; a belt 40 is movably abutted on the pulley 39, one end of the belt 40 is fixedly connected to the upper part of the first pressure plate 20, and the other end of the belt 40 is fixedly connected to the top of the first lifting plate 21; one end of the belt 40 is fixedly connected to the upper part of the second pressure plate 22, and the other end of the belt 40 is fixedly connected to the top of the second lifting plate 23; a limiting groove 38 is relatively opened between the two adjacent vertical rods 19, and both ends of the first lifting plate 21 and the second lifting plate 23 are provided with convex blocks, and the convex blocks are slidably installed in the limiting grooves 38 at both ends of the lifting plates.

[0067] Figure 2 As shown in FIG. 1 , when the first pressing plate 20 is pushed to move toward the workbench 24, the first pressing plate 20 drives the first lifting plate 21 to move upward through the belt 40. After the external force is removed, the first lifting plate 21 moves downward due to gravity and is driven to return to its original position through the belt 40. The principle of the mutual displacement of the second pressing plate 22 and the second lifting plate 23 is the same as above.

[0068] When the laser marking machine is working, it will produce strong light. Long-term exposure may cause vision loss, or even cause serious symptoms such as keratitis and retinal burns. The high temperature generated by the laser marking machine may burn the skin, causing pigmentation, erythema, blisters, dryness and other skin problems.

[0069] Under normal conditions, the pressing plate and the lifting plate are used to enclose and isolate the workbench 24 to prevent the human body from being directly exposed to strong light and protect the body.

[0070] Furthermore, the I-shaped member 29 includes a guide block 32 and an abutment block 30, the guide block 32 and the abutment block 30 are fixedly connected by a connecting rod 31, the adjacent end faces of the guide block 32 are perpendicular to each other, the top of the guide block 32 is parallel to the bottom of the abutment block 30, and threaded heads 33 are respectively fixed on the adjacent side faces of the connecting rod 31, and one side of the connecting rod 31 is fixedly connected to one end of the gooseneck rod 28.

[0071] Figure 3 and Figure 4 As shown in the figure, the top of the guide block 32 and the bottom of the abutment block 30 are arranged parallel to each other. When the abutment block 30 is in contact with the inclined surface of the sample 25 to be laser marked, the top of the guide block 32 is parallel to the inclined surface of the sample 25 to be laser marked. The angle of the sample 25 can be adjusted by adjusting the horizontality of the guide block 32.

[0072] The I-shaped piece 29 can change its own angle to contact with planes to be marked at different angles, so as to achieve rapid adjustment of the angles of multiple different inclined planes before marking.

[0073] Furthermore, the height of the guide block 32 is greater than three times the inner width of the first through slot 36 and the second through slot 37 , and the edge of the guide block 32 is rounded, and the edge of the first through slot 36 and the second through slot 37 is rounded.

[0074] The vertical heights of the first through slot 36 and the second through slot 37 are reduced, and the height of the guide block 32 of the I-shaped member 29 is increased, so as to reduce the probability that the bevel of the guide block 32 enters the through slot when it is tilted. The edge of the guide block 32 is rounded, and the edge of the first through slot 36 and the second through slot 37 are rounded, so that when the bevel of the guide block 32 enters the through slot when it is tilted, it can smoothly and quickly leave the through slot.

[0075] Furthermore, a pin hole 47 is provided on the upper portion of the pressing plate, and a pin rod 46 is provided on the upper portion of the lifting plate at a position corresponding to the pin hole 47 .

[0076] Figure 2 As shown in , when it is necessary to adjust the components on the workbench 24, the lifting plate can be lifted, and the pin rod 46 can be inserted into the pin hole 47, so that the space below the pressing plate is unobstructed, which is convenient for changing the position of the sample 25 or the I-shaped piece 29 and connecting and fixing, and also convenient for cleaning the workbench 24. Pull out the pin rod 46, and the lifting plate drops to the bottom position to achieve the separation of the partition.

[0077] Furthermore, two detachable magnetic fixing seats 49 are provided on the workbench 24, and the magnetic fixing seats 49 are L-shaped.

[0078] Figure 4As shown in the figure, the magnetic fixing seat 49 includes a magnetic element, a base and a knob. The working principle of the magnetic fixing seat 9 is mainly based on the magnetic principle, using the magnetic field generated by the magnetic element to attract and fix the ferromagnetic workpiece. When the knob is adjusted, the position of the magnetic element is changed, and the phenomenon of external magnetism and non-magnetism will occur. This is the prior art and will not be described in detail.

[0079] The workbench 24 is made of carbon steel and can be attracted by magnetic parts; the magnetic fixing seat 49 is set to be L-shaped to fix the sample 25 on the workbench 24. There are preferably two magnetic fixing seats 49, which are set at the diagonals of the sample 25. Rubber material is set on the inside of the magnetic fixing seat 49 to increase friction and protect the sample 25 from damage.

[0080] The adjustment method using the adjustable workbench device of the laser marking machine includes the following steps:

[0081] S1, place the I-shaped piece 29 on the sample 25 for positioning: move the I-shaped piece 29 and the gooseneck rod 28, place the abutment block 30 at the bottom of the I-shaped piece 29 on the surface to be marked of the sample 25, so that the abutment block 30 and the surface to be marked of the sample 25 are in contact with each other;

[0082] S2, connect the I-shaped member 29 with the workbench 24: slide the two telescopic fastening rods 42 in the guide groove 41, so that the two telescopic fastening rods 42 correspond to the longitudinal and transverse positions of the I-shaped member 29 respectively, and then adjust the vertical telescopic rod and the horizontal telescopic rod on the telescopic fastening rod 42, so that the second threaded sleeve 45 contacts the threaded head 33, and after adjusting the angle of the second threaded sleeve 45 by screwing the spherical joint 44, the second threaded sleeve 45 is aligned with the threaded head 33 and screwed and fixed;

[0083] S3, fix the I-shaped member 29 to the workbench 24: tighten the locking screw on the spherical joint 44 to lock the state of the spherical joint 44; screw and fix the threaded sleeve on the telescopic fastening rod 42 to limit the length change; tighten the first threaded sleeve 43 and the bottom bracket 26 to fix the telescopic fastening rod 42 on the workbench 24;

[0084] S4, adjust the surface of the sample 25 to be marked to be horizontal; apply the same force to the two first pressing plates 20, the force directions are opposite, so that the two first pressing plates 20 slide relative to each other to extrude the I-shaped piece 29, when the extrusion tends to be stable and there is no displacement state, remove the external force, and the first pressing plate 20 is reset under the gravity of the first lifting plate 21; adjust the surface of the sample 25 to be marked to be horizontal: apply the same force to the two second pressing plates 22, the force directions are opposite, so that the two second pressing plates 22 slide relative to each other to extrude the I-shaped piece 29, when the extrusion tends to be stable and there is no displacement state, remove the external force, and the second pressing plate 22 is reset under the gravity of the second lifting plate 23; the surface of the sample 25 to be marked is adjusted to be horizontal;

[0085] S5, tighten the spherical base 18 and release the positioning assembly: screw the locking screw 27 to fix the spherical base 18 to limit the angle change of the workbench 24; release the connection between the second threaded sleeve 45 and the threaded head 33, release the fixed connection between the first threaded sleeve 43 and the base 26, and move the telescopic tightening rod 42, the I-shaped piece 29 and the gooseneck rod 28 away from the sample 25.

[0086] The present invention illustrates the technical concept of the present invention through the above embodiments, but the present invention is not limited to the above embodiments, that is, it does not mean that the present invention must rely on the above embodiments to be implemented. Those skilled in the art should understand that the relevant improvements to the present invention fall within the protection scope and disclosure scope of the present invention.

Claims

1. An adjustable workbench device for a laser marking machine, comprising a table body (11), a support frame (14) being mounted on the table body (11), a laser emitter (12) being adjustably mounted on the support frame (14), and a laser lens (13) being disposed on the laser emitter (12). It is characterized in that A receiving cavity (17) is provided on the table body (11) below the laser lens (13), a spherical base (18) is fixedly provided in the receiving cavity (17), the spherical base (18) comprising a ball head and a ball socket, the ball head being the upper part of the spherical base, the ball socket being a groove matching the ball head, and the ball head being freely rotatable in the ball socket; A workbench (24) is fixedly mounted on the top of the spherical base (18), a positioning assembly is provided on the workbench (24), and an I-shaped piece (29) is connected to the positioning assembly; Four vertical poles (19) are fixedly mounted in an array on the table body (11) at the periphery of the workbench (24), and a pushing unit is arranged between two adjacent vertical poles (19). The opposing pushing units are two groups of symmetrically arranged first pushing units and two groups of symmetrically arranged second pushing units. Four corner grooves (34) are opened from top to bottom at the positive corners of the vertical poles (19) facing the workbench (24); The first pushing unit comprises a first pressing plate (20), and the second pushing unit comprises a second pressing plate (22). The first pressing plate (20) and the second pressing plate (22) are both symmetrically arranged. One end of the first pressing plate (20) has two first tenons (35), and the two first tenons (35) are respectively inserted into the corner grooves (34) for sliding installation. The first pressing plate (20) is provided with two first through grooves (36), and the first through grooves (36) are connected to the two corner grooves (34) corresponding to the two corner grooves (34) not installed with the first tenons (35) to form a sliding channel. One end of the second pressing plate (22) has two second tenons (48), the two second tenons (48) are respectively slidably mounted in angle grooves (34) communicating with the first through grooves (36), the second pressing plate (22) is provided with two second through grooves (37), the second through grooves (37) are connected to the two angle grooves (34) corresponding to the tenons of the first pressing plate (20) to form a sliding channel; The first pressing plate (20) is connected to the first lifting plate (21) via a lifting assembly, and the second pressing plate (22) is connected to the second lifting plate (23) via a lifting assembly; When the two first pressing plates (20) on the opposite sides or the two second pressing plates (22) on the opposite sides slide relatively to press the I-shaped piece (29), the angle of the spherical base (18) is changed, thereby adjusting the horizontality of the sample (25) at the bottom of the I-shaped piece (29); The positioning assembly comprises two guide grooves (41) formed on the workbench (24) in the longitudinal and transverse directions adjacent to the edges thereof, a telescopic fastening rod (42) being slidably mounted in each of the guide grooves (41), a movable I-shaped member (29) being mounted on one side of the workbench (24) via a gooseneck rod (28), the telescopic fastening rod (42) being detachably connected to the I-shaped member (29), and when positioning, the I-shaped member (29) is fixedly connected to the workbench (24) via the telescopic fastening rod (42); The I-shaped member (29) comprises a guide block (32) and an abutment block (30), the guide block (32) and the abutment block (30) are fixedly connected via a connecting rod (31), adjacent end faces of the guide block (32) are perpendicular to each other, the top of the guide block (32) is parallel to the bottom of the abutment block (30), adjacent side faces of the connecting rod (31) are respectively fixedly provided with threaded heads (33), and one side of the connecting rod (31) is fixedly connected to one end of a gooseneck rod (28); The telescopic fastening rod (42) is bent, and telescopic sleeves for adjusting the length are provided in two bending directions; a base (26) is provided at the bottom of the telescopic fastening rod (42), the base (26) comprises a screw portion and a chassis that are fixedly connected, the chassis abuts against the bottom of the guide groove (41), the screw portion passes through the guide groove (41) and is fixedly connected to the telescopic fastening rod (42) via a first threaded sleeve (43); a spherical joint (44) is fixedly connected to one end of the telescopic fastening rod (42) away from the guide groove (41), a locking screw is provided on the spherical joint (44) for fixing the angle of the spherical joint (44), a second threaded sleeve (45) is fixedly provided at the free end of the spherical joint (44), and the second threaded sleeve (45) is threadedly connected to a threaded head (33) on the I-shaped member (29); The lifting assembly comprises two pulleys (39) symmetrically fixed on the outer sides of the upper parts of the vertical rods (19), the pulleys (39) being located at two ends of the first pressing plate (20) or the second pressing plate (22), a belt (40) being movably abutted against the pulleys (39), one end of the belt (40) being fixedly connected to the upper part of the first pressing plate (20) or the second pressing plate (22), and the other end of the belt (40) being fixedly connected to the top of the first lifting plate (21) or the second lifting plate (23), a limiting groove (38) being relatively provided between two adjacent vertical rods (19), and convex blocks being provided at both ends of the first lifting plate (21) and the second lifting plate (23), and the convex blocks being slidably installed in the limiting grooves (38) at both ends.

2. The adjustable workbench device of the laser marking machine according to claim 1, It is characterized in that The height of the guide block (32) is greater than three times the inner width of the first through groove (36) and the second through groove (37).

3. The adjustable workbench device of the laser marking machine according to claim 1, It is characterized in that The edge portion of the guide block (32) is rounded, and the edge portions of the first through groove (36) and the second through groove (37) are rounded.

4. The adjustable workbench device of the laser marking machine according to claim 1, It is characterized in that The upper parts of the first pressing plate (20) and the second pressing plate (22) are both provided with pin holes (47), and pin rods (46) are passed through the upper parts of the first lifting plate (21) and the second lifting plate (23) at positions corresponding to the pin holes (47).

5. The adjustable workbench device of the laser marking machine according to claim 1, It is characterized in that The workbench (24) is provided with two detachable magnetic fixing seats (49), and the magnetic fixing seats (49) are L-shaped.

6. A method for adjusting the adjustable worktable device of a laser marking machine according to any one of claims 1 to 5, comprising the following steps: S1, placing an I-shaped piece (29) on the sample (25) for positioning: moving the I-shaped piece (29) and the gooseneck rod (28), placing the abutment block (30) at the bottom of the I-shaped piece (29) on the surface to be marked of the sample (25), so that the abutment block (30) and the surface to be marked of the sample (25) are in contact with each other; S2, connecting the I-shaped member (29) to the workbench (24): sliding the two telescopic fastening rods (42) in the guide groove (41) so that the two telescopic fastening rods (42) correspond to the longitudinal and transverse positions of the I-shaped member (29), respectively, and then adjusting the vertical telescopic rod and the horizontal telescopic rod on the telescopic fastening rod (42) so that the second threaded sleeve (45) contacts the threaded head (33), and adjusting the angle of the second threaded sleeve (45) by screwing the spherical joint (44) so ​​that the second threaded sleeve (45) is aligned with the threaded head (33) and is screwed and fixed; S3, fix the I-shaped member (29) and the workbench (24): tighten the locking screw on the spherical joint (44) to lock the state of the spherical joint (44); screw and fix the threaded sleeve on the telescopic fastening rod (42) to limit the length change; tighten the first threaded sleeve (43) and the bottom bracket (26) to fix the telescopic fastening rod (42) on the workbench (24); S4, adjusting the surface of the sample (25) to be marked to be horizontal; applying the same force to the two first pressing plates (20) in opposite directions, so that the two first pressing plates (20) slide relative to each other to extrude the I-shaped member (29); when the extrusion tends to be stable and there is no displacement, the external force is removed, and the first pressing plates (20) are reset under the gravity of the first lifting plate (21); applying the same force to the two second pressing plates (22) in opposite directions, so that the two second pressing plates (22) slide relative to each other to extrude the I-shaped member (29); when the extrusion tends to be stable and there is no displacement, the external force is removed, and the second pressing plates (22) are reset under the gravity of the second lifting plate (23); the surface of the sample (25) to be marked is adjusted to be horizontal; S5, tighten the spherical base (18) and release the positioning assembly: tighten the locking screw (27) to fix the spherical base (18) to limit the angle change of the workbench (24); release the connection between the second threaded sleeve (45) and the threaded head (33), release the fixed connection between the first threaded sleeve (43) and the base (26), and move the telescopic tightening rod (42) and the I-shaped piece (29) and the gooseneck rod (28) away from the sample (25).

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