High-precision automatic induction type laser engraving device

Abstract

The high-precision automatic induction type laser engraving device comprises a workbench, a supporting plate, a lateral limiting rod, a thickness self-induction piece and a laser engraving piece, and a conveying device is arranged on the surface of the workbench; the two supporting plates are arranged on the two sides of the conveying device respectively, and the surfaces of the two supporting plates are slidably connected with elastic sliding detection pieces in the length direction. Width self-sensing parts used for enabling the two lateral limiting rods to extrude each other are arranged on the sides, extending out of the supporting plates, of the two lateral limiting rods, the same lateral limiting rod is slidably inserted into the corresponding supporting plate, the other lateral limiting rod is slidably inserted into the corresponding elastic sliding detection part, and the laser engraving part is slidably erected between the two supporting plates. The numerical control system is installed on the outer side of the workbench, the length, the width and the thickness of a workpiece can be automatically detected, the position of the workpiece can be automatically adjusted in the automatic detection process, and the workpiece with the adjusted position can be clamped so that the engraving center of the workpiece can be aligned to a laser engraving piece.

Description

Technical Field

[0001] The invention relates to the technical field of laser engraving, and in particular to a high-precision automatic induction laser engraving device. Background Art

[0002] The engraving of workpieces is usually carried out by laser engraving. Laser engraving imports the engraving model through CAD software and uses programming software for engraving. During the engraving process, the size and position of the workpiece need to be precisely controlled, mainly because the fixation of the workpiece position and the size of the workpiece have a greater impact on the accuracy.

[0003] The existing laser engraving devices usually need to manually measure the length of the workpiece before engraving, and manually import the measured data into the system for engraving. That is, the size of the workpiece needs to be measured in advance before each engraving. This is not only cumbersome, but also there may be measurement errors in the manual measurement, which may lead to engraving failure.

[0004] At the same time, for workpieces of different sizes, the position of the workpiece needs to be adjusted manually so that the laser part can adapt to the change in the size of the workpiece. Once the position of the workpiece is offset, the engraving route of the laser part will also change, thereby deviating from the preset route and causing the engraving to fail. Summary of the invention

[0005] The purpose of the present invention is to provide a high-precision automatic induction laser engraving device to solve the technical problems in the existing devices.

[0006] In order to solve the above technical problems, the present invention specifically provides the following technical solutions: a high-precision automatic induction laser engraving device, comprising: A workbench, wherein a conveying device is provided on the surface of the workbench along the length direction; There are two support plates, which are arranged on both sides of the conveying device, and elastic slip detection parts are slidably connected to the surfaces of the two support plates along the length direction; Lateral limit rods, two of which are arranged on each support plate, and a width self-sensing member for squeezing the two lateral limit rods against each other is arranged on one side of the two lateral limit rods extending out of the support plate, so as to automatically detect the distance between the two lateral limit rods arranged opposite to each other in a squeezed and clamped state; One of the lateral limit rods located on the same support plate is slidably inserted into the support plate, and the other lateral limit rod is slidably inserted into the elastic sliding detection member, so that the length dimension between the two lateral limit rods on the same side can be automatically detected by the elastic sliding detection member; A thickness self-sensing member is installed at the end of each of the lateral limit rods, and the thickness self-sensing member is used to automatically detect the thickness of the workpiece; A laser engraving part is slidably mounted between the two support plates; A numerical control system is installed on the outside of the workbench, and the numerical control system is electrically connected to the elastic slip detection component, the width self-sensing component, the thickness self-sensing component and the laser engraving component through wires; The numerical control system receives data transmitted by the elastic slip detection component, the width self-sensing component, and the thickness self-sensing component in real time to control the laser engraving component to engrave the workpiece.

[0007] As a preferred solution of the present invention, the width self-sensing member includes a telescopic spring, a limit seat and a displacement sensor, the limit seat is installed on one end of the lateral limit rod extending out of the support plate, the telescopic spring is sleeved on the lateral limit rod, and the two ends of the telescopic spring are respectively connected to the limit seat and the support plate correspondingly; The displacement sensor is installed on the limit seat.

[0008] As a preferred solution of the present invention, the lateral limiting rod comprises a straight section and an inclined section, the straight section is slidably plugged into the support plate, and the inclined section is connected to a side of the straight section away from the support plate; The inclined section of the inclined section faces the side where the workpiece travels.

[0009] As a preferred solution of the present invention, a guide wheel is provided at the front end of the inclined section, and there is a certain interaction gap between the guide wheel and the thickness self-sensing member to allow the thickness self-sensing member to move.

[0010] As a preferred solution of the present invention, the elastic slip detection member includes a reset spring, a sliding block and a distance measuring member, a sliding groove is provided on the surface of the support plate along the length direction, the sliding groove runs through the inner cavity of the support plate, the sliding block is slidably connected in the sliding groove, and both ends of the reset spring are respectively connected to the sliding block and the side wall of the sliding groove; A sliding groove for the lateral limiting rod to slide through is provided at the center of the inner cavity of the sliding block, and the distance measuring member is arranged on one end of the sliding block facing the inner side of the supporting plate.

[0011] As a preferred solution of the present invention, the thickness self-sensing member includes an L-shaped seat, a rotating rod, a torsion spring, a baffle and an angle monitor, the vertical end of the L-shaped seat is fixedly connected to the end of the lateral limit rod, the rotating rod is rotatably connected to the horizontal section of the L-shaped seat, and the end of the rotating rod is connected to the angle monitor; The baffle is fixedly connected to the rotating rod, the torsion spring is sleeved on the rotating rod, one end of the torsion spring is connected to the horizontal end of the L-shaped seat, and the other end is connected to the baffle.

[0012] As a preferred solution of the present invention, the inner cavity of the horizontal end of the L-shaped seat is provided with a chamber for the movement of the baffle, one side of the baffle is in contact with the inner wall of the chamber, and the other side is away from the side wall of the chamber, and the baffle rotates at an angle of 0°-90° in the chamber.

[0013] As a preferred solution of the present invention, it also includes a walking seat, and a roller is provided at one end of the baffle away from the rotating rod.

[0014] As a preferred solution of the present invention, the laser engraving component includes a gantry and a laser component, the gantry is slidably connected to the top of the two support plates, the laser component is slidably connected to the top of the gantry, and the laser component is located above the lateral limit rod.

[0015] As a preferred solution of the present invention, in the initial position, the laser component is located on the extension line of the middle position line connecting the lines of the lateral limit rods on two different sides.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The device can automatically detect the length, width and thickness of the workpiece, and automatically adjust the position of the workpiece during the automatic detection process, and can clamp the workpiece after the adjustment so that the engraving center of the workpiece is aligned with the laser engraving part, thereby improving the laser engraving accuracy of the entire workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 The overall structure explodes; Figure 3 For the present invention Figure 2 A schematic diagram of the structure of the middle lateral limiting rod; Figure 4 For the present invention Figure 3 The enlarged structural diagram of part A in the middle; Figure 5 For the present invention Figure 4 Schematic diagram of the structure in the middle section; The numbers in the figure represent the following: 1. Workbench; 2. Conveying device; 3. Support plate; 4. Elastic sliding detection part; 5. Lateral limit rod; 6. Width self-sensing part; 7. Thickness self-sensing part; 8. Laser engraving part; 9. CNC control system; 10. Guide wheel; 11. Chamber; 12. Roller; 41. return spring; 42. sliding block; 43. distance measuring member; 44. sliding groove; 45. sliding groove; 51, straight section; 52, oblique section; 61. Telescopic spring; 62. Limit seat; 63. Displacement sensor. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] like Figure 1-5 As shown, a high-precision automatic induction laser engraving device comprises: A workbench 1, a conveying device 2 is arranged on the surface of the workbench 1 along the length direction; Two support plates 3 are arranged on both sides of the conveying device 2, and elastic slip detection members 4 are slidably connected to the surfaces of the support plates 3 along the length direction; Lateral limiting rods 5, two lateral limiting rods 5 are arranged on each support plate 3, and a width self-sensing member 6 for squeezing the two lateral limiting rods 5 against each other is arranged on one side of the lateral limiting rods 5 extending out of the support plate 3, so as to automatically detect the distance between the two lateral limiting rods 5 arranged opposite to each other in the squeezed and clamped state; One lateral limit rod 5 located on the same support plate 3 is slidably inserted on the support plate 3, and the other lateral limit rod 5 is slidably inserted on the elastic sliding detection member 4, so that the length dimension between the two lateral limit rods 5 on the same side can be automatically detected by the elastic sliding detection member 4; A thickness self-sensing member 7 is installed at the end of each lateral limiting rod 5, and the thickness self-sensing member 7 is used to automatically detect the thickness of the workpiece; The laser engraving member 8 is slidably mounted between the two support plates 3; The numerical control system 9 is installed on the outside of the workbench 1, and the numerical control system 9 is electrically connected to the elastic slip detection component 4, the width self-sensing component 6, the thickness self-sensing component 7 and the laser engraving component 8 through wires; The numerical control system 9 receives data transmitted by the elastic slip detection component 4, the width self-sensing component 6, and the thickness self-sensing component 7 in real time to control the laser engraving component 8 to engrave the workpiece.

[0021] The device can automatically detect the length, width and thickness of the workpiece, and automatically adjust the position of the workpiece during the automatic detection process, and can clamp the workpiece after the adjustment so that the engraving center of the workpiece is aligned with the laser engraving part, thereby improving the laser engraving accuracy of the entire workpiece.

[0022] Specifically, Figure 1-3 As shown, the width self-sensing member 6 includes a telescopic spring 61, a limit seat 62 and a displacement sensor 63. The limit seat 62 is installed on one end of the lateral limit rod 5 extending from the support plate 3. The telescopic spring 61 is sleeved on the lateral limit rod 5. The two ends of the telescopic spring 61 are respectively connected to the limit seat 62 and the support plate 3 correspondingly; The displacement sensor 63 is installed on the limiting seat 62 .

[0023] When the workpiece contacts the lateral limit rod 5 at the front end, the workpiece squeezes the lateral limit rod 5 to slide along the support plate 3, wherein the two lateral limit rods 5 on both sides move synchronously, i.e. the distances of movement on both sides are the same, and the two lateral limit rods 5 are squeezed close to each other under the squeezing action of the telescopic spring 61, so that the workpiece is clamped in the middle position of the workbench 1 to achieve positioning, wherein when the displacement sensor 63 is in the initial position, the data displayed by the displacement sensor 63 is zero, i.e. the distance between the displacement sensor 63 and the outer side of the support plate 3 is indicated, until the lateral limit rod 5 completely clamps the workpiece, wherein the data detected by the displacement sensor 63 is stable and unchanged, which is half of the width of the workpiece. The sum of the data detected on both sides plus the initial data is the width of the workpiece, and finally the detected width data is transmitted to the CNC control system 9.

[0024] Further, such as Figure 1-3 As shown, the lateral limiting rod 5 includes a straight section 51 and an inclined section 52, the straight section 51 is slidably inserted on the support plate 3, and the inclined section 52 is connected to the side of the straight section 51 away from the support plate 3; The inclined section of the inclined section 52 is directed toward the side where the workpiece travels.

[0025] Furthermore, Figure 1-3 As shown, a guide wheel 10 is disposed at the front end of the inclined section 52 , and there is a certain interaction gap between the guide wheel 10 and the thickness self-sensing member 7 to allow the thickness self-sensing member 7 to move.

[0026] The arrangement of the inclined section 52 facilitates the steady sliding of workpieces of different widths, that is, reduces the hindering effect of the lateral limiting rod 5 on the movement of the workpiece.

[0027] Specifically, Figure 1-3As shown, the elastic sliding detection member 4 includes a reset spring 41, a sliding block 42 and a distance measuring member 43. A sliding groove 44 is provided on the surface of the support plate 3 along the length direction. The sliding groove 44 runs through the inner cavity of the support plate 3. The sliding block 42 is slidably connected in the sliding groove 44. Both ends of the reset spring 41 are respectively connected to the side walls of the sliding block 42 and the sliding groove 44. A sliding groove 45 for the lateral limiting rod 5 to slide through is provided at the center of the inner cavity of the sliding block 42 , and the distance measuring member 43 is arranged on one end of the sliding block 42 facing the inner side of the supporting plate 3 .

[0028] When the reset spring 41 is in the initial position, the data displayed by the distance measuring member 43 is zero. When the workpiece contacts the lateral limit rod 5 and drives the sliding block 42 to move, the moving sliding block 42 drives the distance measuring member 43 to move synchronously. At this time, the distance between the moving distance measuring member 43 and the other lateral limit rod 5 on the same side changes. Since the lateral limit rods 5 on the two sliding blocks 42 are interlaced, they play a blocking role on the sliding workpiece, that is, the workpiece will not pass between the two lateral limit rods 5, that is, the two lateral limit rods 5 will only slide with the sliding block 42 until the length of the workpiece is completely detected.

[0029] Since the workpiece has a tendency to move forward under the elastic action of the return spring 41, and during engraving, the conveyor 2 needs to stop rotating to keep the workpiece in a stationary state, the thickness self-sensing element 7 not only detects the thickness of the workpiece, but also provides a reverse obstruction to the workpiece.

[0030] Specifically, Figure 1-5 As shown, the thickness self-sensing member 7 includes an L-shaped seat 71, a rotating rod 72, a torsion spring 73, a baffle 74 and an angle monitor 75. The vertical end of the L-shaped seat 71 is fixedly connected to the end of the lateral limiting rod 5, the rotating rod 72 is rotatably connected to the horizontal section of the L-shaped seat 71, and the end of the rotating rod 72 is connected to the angle monitor 75. The baffle plate 74 is fixedly connected to the rotating rod 72 . The torsion spring 73 is sleeved on the rotating rod 72 . One end of the torsion spring 73 is connected to the horizontal end of the L-shaped seat 71 , and the other end is connected to the baffle plate 74 .

[0031] Further, such as Figure 1-5 As shown, the inner cavity of the horizontal end of the L-shaped seat 71 is provided with a chamber 11 for the movement of the baffle 74. One side of the baffle 74 is in contact with the inner wall of the chamber 11, and the other side is away from the side wall of the chamber 11. The baffle 74 rotates in the chamber 11 at an angle of 0°-90°.

[0032] This ensures that the baffle 74 can only rotate in one direction, that is, when the workpiece moves forward, the baffle 74 is opened under the push of the workpiece, and the baffle 74 is tightly attached to the surface of the workpiece driven by the torsion spring 73. At this time, the angle monitor 75 detects the angle of the baffle 74, calculates the thickness of the workpiece by converting the angle and the displacement, and transmits the data to the CNC control system.

[0033] Further, such as Figure 1-5 As shown, a roller 12 is provided at one end of the baffle plate 74 away from the rotating rod 72 .

[0034] Specifically, the laser engraving component 8 includes a gantry 81 and a laser component 82 . The gantry 81 is slidably connected to the top of the two support plates 3 , and the laser component 82 is slidably connected to the top of the gantry 81 , and the laser component 82 is located above the lateral limiting rod 5 .

[0035] The laser component 82 may be a laser assembly that is adjustable on the X, Y, and Z axes.

[0036] Further, such as Figure 1-5 As shown, in the initial position, the laser component 82 is located on the extension line of the middle position line connecting the two pairs of lateral limiting rods 5 on different sides.

[0037] This can facilitate the adjustment of the laser element 82 .

[0038] Among them, in this device, after the workpiece is completely moved to the position of the baffle 74 and at the moment when the baffle 74 is automatically lowered, the CNC control system 9 controls the conveying device 2 to stop working. At this time, the workpiece is limited by the obstruction of the baffle 74 and the lateral limit rod 5 on the other side, and is limited to the neutral position of the workbench 1, that is, the axis of the workpiece and the laser component 82 are on the same straight line. Then the CNC control system 9 engraves the workpiece according to the data measured by the elastic slip detection component 4, the width self-sensing component 6 and the thickness self-sensing component 7. Since the length, width and thickness of the workpiece can be automatically determined, and the position can also be determined, it is used to enable the laser component 82 to be accurately processed.

[0039] The above embodiments are only exemplary embodiments of the present application and are not intended to limit the present application. The protection scope of the present application is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present application within the essence and protection scope of the present application, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present application.

Claims

1. A high-precision automatic induction laser engraving device, characterized in that: include: A workbench (1), wherein a conveying device (2) is arranged on the surface of the workbench (1) along the length direction; Two support plates (3) are provided, the two support plates (3) are arranged on both sides of the conveying device (2), and elastic slip detection parts (4) are slidably connected to the surfaces of the two support plates (3) along the length direction; Two lateral limit rods (5) are arranged on each support plate (3), and a width self-sensing member (6) for causing the two lateral limit rods (5) to squeeze each other is arranged on one side of the two lateral limit rods (5) extending out of the support plate (3), so as to automatically detect the distance between the two lateral limit rods (5) arranged opposite to each other in a squeezed and clamped state; One of the lateral limit rods (5) located on the same support plate (3) is slidably plugged into the support plate (3), and the other lateral limit rod (5) is slidably plugged into the elastic sliding detection member (4), so that the length dimension between the two lateral limit rods (5) on the same side can be automatically detected by the elastic sliding detection member (4); A thickness self-sensing member (7) is mounted on the end of each of the lateral limiting rods (5), and the thickness self-sensing member (7) is used to automatically detect the thickness of the workpiece; A laser engraving component (8) is slidably mounted between the two support plates (3); A numerical control system (9) is installed outside the workbench (1), and the numerical control system (9) is electrically connected to the elastic slip detection component (4), the width self-sensing component (6), the thickness self-sensing component (7) and the laser engraving component (8) through wires; The numerical control system (9) receives data transmitted by the elastic slip detection component (4), the width self-sensing component (6), and the thickness self-sensing component (7) in real time, so as to control the laser engraving component (8) to engrave the workpiece.

2. A high-precision automatic induction laser engraving device according to claim 1, characterized in that: The width self-sensing member (6) comprises a telescopic spring (61), a limit seat (62) and a displacement sensor (63); the limit seat (62) is mounted on one end of the lateral limit rod (5) extending out of the support plate (3); the telescopic spring (61) is sleeved on the lateral limit rod (5); and the two ends of the telescopic spring (61) are respectively connected to the limit seat (62) and the support plate (3) in a corresponding manner; The displacement sensor (63) is mounted on the limit seat (62).

3. A high-precision automatic induction laser engraving device according to claim 2, characterized in that: The lateral limiting rod (5) comprises a straight section (51) and an inclined section (52); the straight section (51) is slidably plugged into the support plate (3); and the inclined section (52) is connected to a side of the straight section (51) away from the support plate (3); The inclined section of the inclined section (52) faces the side where the workpiece travels.

4. The high-precision automatic induction laser engraving device according to claim 3, characterized in that: A guide wheel (10) is provided at the front end of the inclined section (52), and a certain interaction gap exists between the guide wheel (10) and the thickness self-sensing member (7) to allow the thickness self-sensing member (7) to move.

5. The high-precision automatic induction laser engraving device according to claim 1, characterized in that: The elastic sliding detection member (4) comprises a reset spring (41), a sliding block (42) and a distance measuring member (43); a sliding groove (44) is provided on the surface of the support plate (3) along the length direction; the sliding groove (44) penetrates the inner cavity of the support plate (3); the sliding block (42) is slidably connected in the sliding groove (44); and two ends of the reset spring (41) are respectively connected to the side walls of the sliding block (42) and the sliding groove (44); A sliding groove (45) for the lateral limiting rod (5) to slide through is provided at the center of the inner cavity of the sliding block (42), and the distance measuring member (43) is arranged on one end of the sliding block (42) facing the inner side of the support plate (3).

6. The high-precision automatic induction laser engraving device according to claim 1, characterized in that: The thickness self-sensing member (7) comprises an L-shaped seat (71), a rotating rod (72), a torsion spring (73), a baffle (74) and an angle monitor (75); the vertical end of the L-shaped seat (71) is fixedly connected to the end of the lateral limiting rod (5); the rotating rod (72) is rotatably connected to the horizontal section of the L-shaped seat (71); and the end of the rotating rod (72) is connected to the angle monitor (75); The baffle (74) is fixedly connected to the rotating rod (72), the torsion spring (73) is sleeved on the rotating rod (72), one end of the torsion spring (73) is connected to the horizontal end of the L-shaped seat (71), and the other end is connected to the baffle (74).

7. The high-precision automatic induction laser engraving device according to claim 6, characterized in that: The inner cavity of the horizontal end of the L-shaped seat (71) is provided with a chamber (11) for the baffle plate (74) to move. One side of the baffle plate (74) is in contact with the inner wall of the chamber (11), and the other side is away from the side wall of the chamber (11). The baffle plate (74) can rotate in the chamber (11) at an angle of 0°-90°.

8. The high-precision automatic induction laser engraving device according to claim 7, characterized in that: A roller (12) is provided at one end of the baffle plate (74) away from the rotating rod (72).

9. The high-precision automatic induction laser engraving device according to claim 1, characterized in that: The laser engraving component (8) comprises a gantry (81) and a laser component (82), wherein the gantry (81) is slidably connected to the top of the two support plates (3), and the laser component (82) is slidably connected to the top of the gantry (81), and the laser component (82) is located above the lateral limiting rod (5).

10. The high-precision automatic induction laser engraving device according to claim 9, characterized in that: In the initial position, the laser component (82) is located on the extension line of the middle position line connecting the lines of the lateral limiting rods (5) on two different sides.

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