A precise positioning device for a laser engraving machine

Abstract

The present invention discloses a precise positioning device for a laser engraving machine, which relates to the technical field of laser engraving. It includes a support frame. On both sides of the top surface of the support frame, side groove arc plates are fixedly connected. On the top surface of the support frame, two platform plates are fixedly connected. Between the two platform plates, a groove plate is fixedly connected. A transverse moving frame is slidably connected between the two side groove arc plates. A laser engraving mechanism is arranged outside the transverse moving frame. Above the platform plate, a pressing plate clamping mechanism is arranged. Behind the support frame, an auxiliary feeding mechanism is arranged; the laser engraving mechanism includes a threaded rod, and a moving rod seat is threadedly connected to the outer side of the threaded rod. The top end of the moving rod seat is equipped with a cylinder. In the present invention, the pressing strip connected by the pressing edge cross bar contacts the edge of the plate, avoiding using the structural positioning to cooperate with the pressing plate frame to press downwards, improving the fixing effect of the plate, and preventing the positioning structure from blocking the plate and affecting the engraving area and engraving effect.

Description

Technical Field

[0001] The present invention relates to the technical field of laser engraving, and specifically relates to a precise positioning device for a laser engraving machine. Background Art

[0002] The precision of laser engraving is closely related to the placement of materials. To ensure the best engraving effect, operators need to pay attention to multiple aspects such as the positioning of materials, the horizontal state of the machine, environmental factors, the distance of the laser head, and software calibration. Through reasonable placement and adjustment, the quality and accuracy of laser engraving can be significantly improved.

[0003] The patent with the publication number CN221312938U discloses a precise positioning device for a laser engraving machine, including: a mounting plate and a conveyor belt, and a clamping mechanism arranged on the top of the mounting plate; the clamping mechanism includes: several sliding rods, a fixed frame arranged at the bottom of the several sliding rods, a connecting plate arranged at the top of the several sliding rods, and a sleeve arranged at the top of the connecting plate: both inner walls of the fixed frame are provided with two through chutes, two opposite sliding plates are slidably connected in the chutes, a clamping plate is fixedly connected to the bottom of the sliding plate, and adjusting blocks are fixedly connected to both sides of the sliding plate; the several sliding rods pass through the mounting plate and are slidably connected. A precise positioning device for a laser engraving machine is provided. There is a motor arranged in the mounting groove, one end of the output shaft of the motor is provided with a threaded rod, the threaded rod passes through the connecting plate and is threadedly connected to the sleeve. By starting the motor, the motor drives the threaded rod to rotate, so as to drive the sleeve to move up and down. However, this patent still has the problem that the engraved items are prone to shift in the placement position, affecting the engraving effect. Therefore, it is very necessary to design a precise positioning device for a laser engraving machine. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the present invention provides a precise positioning device for a laser engraving machine, which solves the problems raised in the above background art.

[0005] To achieve the above purposes, the present invention is realized through the following technical solutions: A precise positioning device for a laser engraving machine, including a support frame, both sides of the top surface of the support frame are fixedly connected with side groove arc plates, the top surface of the support frame is fixedly connected with two platform plates, a groove plate is fixedly connected between the two platform plates, a transverse moving frame is slidably connected between the two side groove arc plates, a laser engraving mechanism is arranged outside the transverse moving frame, a pressing plate clamping mechanism is arranged above the platform plates, and an auxiliary feeding mechanism is arranged behind the support frame;

[0006] The laser engraving mechanism includes a threaded rod, on the outer side of which a moving rod seat is threadedly connected. At the top of the moving rod seat, a cylinder is installed. At the bottom end of the cylinder, an engraving end is fixedly connected. At the top edge of the engraving end, a linkage rod is fixedly connected. At both ends of the linkage rod, pressing rod strips are fixedly connected. On the side of the pressing rod strip, a circular rod is fixedly connected. At the bottom surface of each platform plate, two inclined groove rods are hingedly connected. On the side of the inclined groove rod, a deflecting rod is fixedly connected. On the side of each inclined groove rod, a telescopic sliding rod is slidably connected. At the end of the telescopic sliding rod, a pressing push plate is fixedly connected. The telescopic sliding rod is a telescopic structure and slides through the outer side of the groove plate to the inside. The threaded rod is rotationally connected to the end of the transverse moving frame. The circular rod slides through the top surface of the platform plate to the bottom surface. The deflecting rod is slidably connected to the bottom end of the circular rod. When the threaded rod is driven to rotate by an external motor, the rotation of the threaded rod drives the connected moving rod seat to move horizontally along the transverse moving frame. When the cylinder on the connected moving rod seat extends downward for engraving and approaches the item to be engraved, the cylinder pushes the engraving end downward and drives the linkage rod to move together. The linkage rod then pushes the connected pressing rod strip to drive the circular rod to slide downward along the connection of the platform plate, so that the circular rod pushes the deflecting rod to deflect around the connection at the bottom surface of the platform plate. Thus, the inclined groove rod is pressured by the deflecting rod, causing the inclined groove rod to push the telescopic sliding rod to slide through the inner wall of the groove plate. The telescopic sliding rods approach each other through the connected pressing push plates to clamp the item in the groove plate. As the cylinder continues to move, the circular rod moves downward in sequence. After the telescopic sliding rod pushes the pressing push plate to press the item, the telescopic sliding rod starts to contract due to the reaction force of the item being squeezed, so that the pressing push plate contacts and locates the placement position of the item, and adjusts the placement position of the box-shaped object placed in the groove plate, playing a role in correcting the placement position and improving the engraving position and effect.

[0007] According to the above technical solution, the pressing plate clamping mechanism includes a vertical pressing plate. A pressing plate frame is fixedly connected to the bottom surface of the vertical pressing plate. A spring piece is arranged on the side surface of the vertical pressing plate. Four vertical short rods are slidably connected to the four corners of the pressing plate frame. A sliding groove frame is slidably connected to the inner side of the pressing plate frame. Two pressing edge cross bars are arranged inside the sliding groove frame. At both ends of each pressing edge cross bar, a pressing plate hinge rod is hingedly connected. A pressing edge strip is fixedly connected to the side of the pressing edge cross bar away from the pressing plate frame. The two ends of the spring piece are respectively fixedly connected to the pressing rod strip and the pressing plate frame. The four vertical short rods are fixedly connected to the top surface of the pressing plate frame in two groups. One ends of the two pressing plate hinge rods away from the pressing edge cross bar are respectively hingedly connected to the sliding groove frame and the pressing plate frame. When processing sheet-like articles, the sheet is placed above the platform plate. When the cylinder is in the extended state and pushes the engraving end downward, the pressing rod strip slides downward along the vertical pressing plate and squeezes the spring piece. After the spring piece is pressed, it pushes the vertical pressing plate to slide along the vertical short rod and approach the top surface of the platform plate, pressing the edge of the sheet to prevent the sheet from deforming and bulging, which affects the engraving effect. At the same time, when the size of the sheet to be engraved is small, by manually adjusting the position of the sliding groove frame, the sliding groove frame slides along the inner sliding groove of the pressing plate frame. After the sliding groove frame moves, it pushes the pressing plate hinge rod on the connected side. When the sliding groove frame approaches the pressing plate frame on the side with a farther distance, the two pressing plate hinge rods on both sides deflect simultaneously and push the connected pressing edge cross bar to approach the edge of the sheet. The pressing edge strip connected by the pressing edge cross bar contacts the edge of the sheet, avoiding using the structure to position and cooperate with the pressing plate frame to press downward, improving the fixing effect of the sheet and preventing the positioning structure from blocking the sheet, which affects the engraving area and the engraving effect.

[0008] According to the above technical solution, the auxiliary loading mechanism includes a long sliding rod, on the outer side surface of which a support cross frame is slidably connected. On the rear side surface of the support cross frame, a sliding rod hanger is fixedly connected. At the bottom end of the sliding rod hanger, a auxiliary material table is fixedly connected. In the middle of the auxiliary material table, two guiding sliding strips are fixedly connected. Above the guiding sliding strips, a feeding plate is slidably connected. At the bottom surface of the feeding plate, an upper tooth block is fixedly connected. Below the upper tooth block, a gear is meshingly connected. On both sides of the gear, a tooth seat plate is rotatably connected. At the bottom end of the tooth seat plate, a tooth seat sliding groove is fixedly connected. Inside the tooth seat sliding groove, a lower tooth block is slidably connected. On the rear side surface of the support frame, a side support rod is fixedly connected. At the top surface of the feeding plate, a blocking rod is fixedly connected. The long sliding rod is fixedly connected with a side groove arc plate. The lower tooth block is meshingly connected with the gear. At the front end of the lower tooth block, a touch pressure plate is fixedly connected. On the rear side surface of the lower tooth block, a elastic spring is fixedly connected, and both ends of the elastic spring are respectively fixedly connected with the lower tooth block and the end of the tooth seat sliding groove. In the middle of the top surface of the auxiliary material table, a through groove is opened, and the through groove is slidably connected with the upper tooth block. On both sides of the groove plate, a transfer structure is provided. The transfer structure includes guide wheels, which are rotatably connected to the inner walls of the top ends on both sides of the support frame. Outside the guide wheels, chains are meshingly connected. On the side surface of the chains, chain rods are fixedly connected. The chains are symmetrically distributed about the vertical center line of the support frame. When the cut plates or box-shaped articles are transported to the auxiliary material table through transmission, the auxiliary material table is pushed to move through the connected sliding rod hanger, so that the sliding rod hanger drives the support cross frame to move along the long sliding rod. At this time, the auxiliary material table approaches the support frame, so that the touch pressure plate at the bottom surface of the auxiliary material table contacts the side support rod. After the touch pressure plate is pressed, it pushes the lower tooth block to slide along the tooth seat sliding groove and compress the spring. At the same time, the movement of the lower tooth block drives the meshing gear to rotate, so that the rotating gear drives the connected upper tooth block to approach the support frame, so that the upper tooth block-connected feeding plate extends into the groove plate, and the articles on the feeding plate are sent into the groove plate. Subsequently, after the feeding plate is reset according to the above process, the guide wheels rotate to drive the chain rods connected to the chains to move, so that the chain rods push the articles in the groove plate to move to the designated position. When the plate is above the auxiliary material table, the feeding plate drives the connected blocking rod to push the plate along the flat platform plate above the chains, and uses the chains to drive the plate to move to the designated position for engraving. The auxiliary material table is moved to assist in handling heavier articles and move the articles to the designated position, improving the efficiency of engraving processing.

[0009] The present invention provides a precise positioning device for a laser engraving machine. It has the following beneficial effects:

[0010] In the present invention, by providing a threaded rod, a moving rod seat, a cylinder, an engraving end, a linkage rod, a pressing bar strip, a circular rod, a deflecting rod, an inclined groove rod, a telescopic sliding rod, and a pressing push plate, the circular rods move downward in sequence. After the telescopic sliding rod pushes the pressing push plate to press an object, the telescopic sliding rod starts to contract due to the reaction force of the object being squeezed, so that the pressing push plate contacts and locates the placement position of the object, and adjusts the placement position of the box-shaped object placed in the groove plate, playing a role in correcting the placement position and improving the engraving position and effect.

[0011] In the present invention, by providing a vertical pressing plate, a spring piece, a pressing plate frame, a vertical short rod, a pressing plate hinge rod, a pressing edge cross bar, a pressing edge strip, and a sliding groove frame, the two pressing plate hinge rods deflect simultaneously to push the connected pressing edge cross bars close to the edge of the plate. The pressing edge strips connected by the pressing edge cross bars contact the edge of the plate, avoiding using the structure for positioning and pressing downward with the pressing plate frame, improving the fixing effect of the plate, and preventing the positioning structure from blocking the plate and affecting the engraving area and engraving effect.

[0012] In the present invention, by providing a long sliding rod, a supporting cross frame, a sliding rod hanging frame, an auxiliary material table, a feeding plate, an upper tooth block, a gear, a lower tooth block, a contact pressing plate, a tooth seat plate, a tooth seat sliding groove, a side support rod, a guiding sliding strip, and a blocking rod, the link rod is used to push the object in the groove plate to a specified position. When the plate is above the auxiliary material table, the feeding plate drives the connected blocking rod to push the plate along the flat platform plate onto the chain, and the chain is used to drive the plate to move to the specified position for engraving. The auxiliary material table moves to assist in handling heavier objects and moves the objects to the specified position, improving the efficiency of engraving processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a front three-dimensional structure schematic diagram of the whole of the present invention;

[0014] Figure 2 is a rear three-dimensional structure schematic diagram of the whole of the present invention;

[0015] Figure 3 is a structure schematic diagram of the whole laser engraving mechanism of the present invention;

[0016] Figure 4 is a structure schematic diagram of the connection of the whole inclined groove rod of the present invention;

[0017] Figure 5 is a structure schematic diagram of the whole pressing plate clamping mechanism of the present invention;

[0018] Figure 6 is a structure schematic diagram of the whole auxiliary feeding mechanism of the present invention;

[0019] Figure 7 is of the present invention Figure 6 is an enlarged structure schematic diagram of A in

[0020] In the figure: 1, support frame; 2, side groove arc plate; 3, platform plate; 4, transverse movement frame; 5, laser engraving mechanism; 51, threaded rod; 52, moving rod seat; 53, cylinder; 54, engraving end; 55, linkage rod; 56, pressing rod strip; 57, loop rod; 58, deflecting rod; 59, inclined groove rod; 510, telescopic sliding rod; 511, pressing push plate; 6, pressing plate clamping mechanism; 61, vertical pressing plate; 62, spring piece; 63, pressing plate frame; 64, vertical short rod; 65, pressing plate hinge rod; 66, pressing edge cross bar; 67, pressing edge strip; 68, chute frame; 7, auxiliary feeding mechanism; 71, long sliding rod; 72, supporting cross frame; 73, sliding rod hanging frame; 74, auxiliary material table; 75, feeding plate; 76, upper tooth block; 77, gear; 78, lower tooth block; 79, contact pressing plate; 710, tooth seat plate; 711, tooth seat chute; 712, side support rod; 713, guiding sliding strip; 714, blocking rod; 8, groove plate; 9, transfer structure; 91, guide wheel; 92, chain; 93, chain rod. Detailed implementation manners

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0022] Please refer to Figures 1-7 , the embodiment of the present invention is: a precise positioning device for a laser engraving machine, including a support frame 1. Both sides of the top surface of the support frame 1 are fixedly connected with side groove arc plates 2. The top surface of the support frame 1 is fixedly connected with two platform plates 3. A groove plate 8 is fixedly connected between the two platform plates 3. A transverse movement frame 4 is slidably connected between the two side groove arc plates 2. A laser engraving mechanism 5 is arranged outside the transverse movement frame 4. A pressing plate clamping mechanism 6 is arranged above the platform plate 3. An auxiliary feeding mechanism 7 is arranged behind the support frame 1;

[0023] The laser engraving mechanism 5 includes a threaded rod 51. A moving rod seat 52 is threadedly connected to the outer side surface of the threaded rod 51. A cylinder 53 is installed at the top end of the moving rod seat 52. A bottom end of the cylinder 53 is fixedly connected to an engraving end 54. A linkage rod 55 is fixedly connected to the top edge of the engraving end 54. Pressing rod strips 56 are fixedly connected to both ends of the linkage rod 55. A circular rod 57 is fixedly connected to the side surface of the pressing rod strip 56. Two inclined groove rods 59 are hingedly connected to the bottom surface of each platform plate 3. A deflecting rod 58 is fixedly connected to the side surface of the inclined groove rod 59. A telescopic sliding rod 510 is slidably connected to the side surface of each inclined groove rod 59. A pressing push plate 511 is fixedly connected to the end of the telescopic sliding rod 510. The telescopic sliding rod 510 is a telescopic structure. The telescopic sliding rod 510 slidably penetrates from the outer side surface of the groove plate 8 to the inside. The threaded rod 51 is rotatably connected to the end of the transverse moving frame 4. The circular rod 57 slidably penetrates from the top surface of the platform plate 3 to the bottom surface. The deflecting rod 58 is slidably connected to the bottom end of the circular rod 57. When the circular rod 57 moves downward in sequence, after the telescopic sliding rod 510 pushes the pressing push plate 511 to press an object, the telescopic sliding rod 510 starts to contract due to the reaction force of being squeezed by the object, so that the pressing push plate 511 contacts and locates the placement position of the object, and adjusts the placement position of the box-shaped object placed in the groove plate 8, playing a role in correcting the placement position and improving the engraving position and effect.

[0024] The pressing plate clamping mechanism 6 includes a vertical pressing plate 61. A pressing plate frame 63 is fixedly connected to the bottom surface of the vertical pressing plate 61. A spring plate 62 is arranged on the side surface of the vertical pressing plate 61. Vertical short rods 64 are slidably connected to the four corners of the pressing plate frame 63. A sliding groove frame 68 is slidably connected to the inside of the pressing plate frame 63. Two pressing edge cross rods 66 are arranged inside the sliding groove frame 68. Pressing plate hinge rods 65 are hingedly connected to both ends of each pressing edge cross rod 66. A pressing edge strip 67 is fixedly connected to the side of the pressing edge cross rod 66 away from the pressing plate frame 63. Two ends of the spring plate 62 are respectively fixedly connected to the pressing rod strip 56 and the pressing plate frame 63. The four vertical short rods 64 are fixedly connected to the top surface of the pressing plate frame 63 in two groups. One ends of the two pressing plate hinge rods 65 away from the pressing edge cross rod 66 are respectively hingedly connected to the sliding groove frame 68 and the pressing plate frame 63. The two pressing plate hinge rods 65 on both sides deflect simultaneously to push the connected pressing edge cross rods 66 to approach the edge of the plate. The pressing edge strips 67 connected by the pressing edge cross rods 66 contact the edge of the plate, avoiding using the structure to position and cooperate with the pressing plate frame to press downward, improving the fixing effect of the plate, and preventing the positioning structure from blocking the plate and affecting the engraving area and engraving effect.

[0025] The auxiliary loading mechanism 7 includes a long sliding rod 71. A support cross frame 72 is slidably connected to the outer side surface of the long sliding rod 71. A sliding rod hanger 73 is fixedly connected to the rear side surface of the support cross frame 72. A auxiliary material table 74 is fixedly connected to the bottom end of the sliding rod hanger 73. Two guiding slide bars 713 are fixedly connected to the middle part of the auxiliary material table 74. A feeding plate 75 is slidably connected above the guiding slide bars 713. An upper tooth block 76 is fixedly connected to the bottom surface of the feeding plate 75. A gear 77 is meshed and connected below the upper tooth block 76. Tooth seat plates 710 are rotatably connected to both sides of the gear 77. A tooth seat chute 711 is fixedly connected to the bottom end of the tooth seat plate 710. A lower tooth block 78 is slidably connected inside the tooth seat chute 711. A side support rod 712 is fixedly connected to the rear side surface of the support frame 1. A blocking rod 714 is fixedly connected to the top surface of the feeding plate 75. The long sliding rod 71 is fixedly connected to the side groove arc plate 2. The lower tooth block 78 is meshed and connected with the gear 77. A pressure contact plate 79 is fixedly connected to the front end of the lower tooth block 78. A elastic spring is fixedly connected to the rear side surface of the lower tooth block 78, and both ends of the elastic spring are fixedly connected to the lower tooth block 78 and the end of the tooth seat chute 711 respectively. A through groove is formed in the middle top surface of the auxiliary material table 74, and the through groove is slidably connected with the upper tooth block 76. Transfer structures 9 are arranged on both sides of the groove plate 8. The transfer structure 9 includes a guide wheel 91. The guide wheel 91 is rotatably connected to the inner walls of the top ends of both sides of the support frame 1. A chain 92 is meshed and connected to the outside of the guide wheel 91. A chain rod 93 is fixedly connected to the side surface of the chain 92. The chains 92 are symmetrically distributed about the vertical center line of the support frame 1, so that the chain rod 93 pushes the articles in the groove plate 8 to move to the designated position. When the plate is above the auxiliary material table 74, the feeding plate 75 drives the connected blocking rod 714 to push the plate along the flat platform plate 3 onto the upper part of the chain 92, and the chain 92 drives the plate to move to the designated position for engraving. The auxiliary material table 74 moves to assist in handling heavier articles and moves the articles to the designated position, improving the efficiency of engraving processing.

[0026] Working principle: When the external motor drives the threaded rod 51 to rotate, the rotation of the threaded rod 51 drives the connected moving rod seat 52 to move horizontally along the transverse moving frame 4. When the cylinder 53 on the moving rod seat 52 extends downward for engraving and approaches the item to be engraved, the cylinder 53 pushes the engraving end 54 downward and drives the linkage rod 55 to move together. The linkage rod 55 then pushes the connected pressure bar 56 to drive the loop rod 57 to slide downward along the connection with the platform plate 3, so that the loop rod 57 pushes the deflecting lever 58 to deflect around the connection at the bottom of the platform plate 3. Thus, the deflecting lever 58 drives the inclined groove rod 59 to apply pressure to the inclined groove rod 59, causing the inclined groove rod 59 to push the telescopic slide rod 510 to slide through the inner wall of the groove plate 8. The telescopic slide rods 510 approach each other through the connected pressure-applying push plates 511 to clamp the item in the groove plate 8. As the cylinder 53 continues to move, the loop rod 57 moves downward in sequence. After the telescopic slide rod 510 pushes the pressure-applying push plate 511 to apply pressure to the item, the telescopic slide rod 510 starts to contract due to the reaction force of the item being squeezed, so that the pressure-applying push plate 511 contacts and positions the placement position of the item, and adjusts the placement position of the box-shaped object placed in the groove plate 8, playing a role in correcting the placement position and improving the engraving position and effect;

[0027] When processing sheet-like items, place the sheet on top of the platform plate 3. When the cylinder 53 is in the extended state and pushes the engraving end 54 downward, the pressure bar 56 slides downward along the vertical pressure plate 61 and squeezes the spring piece 62. After being pressed, the spring piece 62 pushes the vertical pressure plate 61 to slide along the vertical short rod 64 and approach the top surface of the platform plate 3 to press the edge of the sheet, preventing the sheet from deforming and bulging and affecting the engraving effect. At the same time, when the size of the sheet to be engraved is small, manually adjust the position of the chute frame 68 to make the chute frame 68 slide along the inner chute of the pressure plate frame 63. After the chute frame 68 moves, it pushes the connected pressure plate hinge rod 65 on one side. When the chute frame 68 approaches the pressure plate frame 63 on the side with a greater distance, the two pressure plate hinge rods 65 deflect simultaneously to push the connected edge-pressing cross bar 66 to approach the edge of the sheet. The edge-pressing strip 67 connected to the edge-pressing cross bar 66 contacts the edge of the sheet, avoiding using the structure to position and cooperate with the pressure plate frame 63 to apply downward pressure, improving the fixing effect of the sheet, and preventing the positioning structure from blocking the sheet and affecting the engraving area and engraving effect;

[0028] When the cut sheet or box-shaped article is conveyed to the auxiliary material table 74 through transmission, the auxiliary material table 74 is pushed to move through the connected slide rod hanger 73, so that the slide rod hanger 73 drives the support cross frame 72 to move along the long slide rod 71. At this time, the auxiliary material table 74 approaches the support frame 1, and the pressure contact plate 79 on the bottom surface of the auxiliary material table 74 contacts the side support rod 712. After the pressure contact plate 79 is pressed, it pushes the lower tooth block 78 to slide along the tooth seat chute 711 and squeezes the spring. At the same time, the movement of the lower tooth block 78 drives the meshing gear 77 to rotate, so that the rotation of the gear 77 drives the connected upper tooth block 76 to approach the support frame 1, and the feeding plate 75 connected to the upper tooth block 76 extends into the groove plate 8, so that the articles on the continuous feeding plate 75 are fed into the groove plate 8. Subsequently, after the feeding plate 75 is reset according to the above process, the guide wheel 91 rotates to drive the link rod 93 connected to the chain 92 to move, so that the link rod 93 pushes the articles in the groove plate 8 to the designated position. When the sheet is above the auxiliary material table 74, the feeding plate 75 drives the connected blocking rod 714 to push the sheet along the flat platform plate 3 above the chain 92, and the chain 92 is used to drive the sheet to the designated position for engraving. The auxiliary material table 74 is moved to assist in handling heavier articles and move the articles to the designated position, improving the efficiency of engraving processing.

[0029] As described above, only the preferred specific embodiments of the present invention are given, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A precise positioning device for a laser engraving machine, comprising a support frame (1), characterized in that: Side groove arc plates (2) are fixedly connected to both sides of the top surface of the support frame (1), two platform plates (3) are fixedly connected to the top surface of the support frame (1), a groove plate (8) is fixedly connected between the two platform plates (3), a transverse frame (4) is slidably connected between the two side groove arc plates (2), a laser engraving mechanism (5) is arranged on the outer side of the transverse frame (4), a pressure plate clamping mechanism (6) is arranged above the platform plate (3), and an auxiliary feeding mechanism (7) is arranged at the rear of the support frame (1); The laser engraving mechanism (5) comprises a threaded rod (51), the outer side surface of the threaded rod (51) is threadedly connected to a rod shifting seat (52), a cylinder (53) is installed at the top end of the rod shifting seat (52), the bottom end of the cylinder (53) is fixedly connected to an engraving end (54), the top edge of the engraving end (54) is fixedly connected to a linkage rod (55), both ends of the linkage rod (55) are fixedly connected to a pressure rod strip (56), the side surface of the pressure rod strip (56) is fixedly connected to a ring rod (57), the bottom surface of each platform plate (3) is hingedly connected to two inclined slot rods (59), the side surface of the inclined slot rod (59) is fixedly connected to a deflection turning rod (58), and the side surface of each inclined slot rod (59) is slidably connected to a telescopic sliding rod (510); The auxiliary feeding mechanism (7) comprises a long sliding rod (71), the outer side surface of the long sliding rod (71) is slidably connected to a supporting cross frame (72), the rear side surface of the supporting cross frame (72) is fixedly connected to a sliding rod hanger (73), the bottom end of the sliding rod hanger (73) is fixedly connected to an auxiliary material platform (74), the middle part of the auxiliary material platform (74) is fixedly connected to two guide slide bars (713), the upper part of the guide slide bar (713) is slidably connected to a feeding plate (75), and the bottom of the feeding plate (75) is fixedly connected to the auxiliary material platform (74). The upper tooth block (76) is fixedly connected to the surface, the lower part of the upper tooth block (76) is meshingly connected to a gear (77), the two sides of the gear (77) are rotatably connected to a tooth seat plate (710), the bottom end of the tooth seat plate (710) is fixedly connected to a tooth seat slide groove (711), the inner side of the tooth seat slide groove (711) is slidably connected to a lower tooth block (78), the rear side surface of the support frame (1) is fixedly connected to a side support rod (712), and the top surface of the feeding plate (75) is fixedly connected to a blocking rod (714); The pressure plate clamping mechanism (6) comprises a vertical pressure plate (61), the bottom surface of the vertical pressure plate (61) is fixedly connected to a pressure plate frame (63), the side surface of the vertical pressure plate (61) is provided with a spring sheet (62), the four corners of the pressure plate frame (63) are slidably connected to vertical short rods (64), the inner side of the pressure plate frame (63) is slidably connected to a slide groove frame (68), the inner side of the slide groove frame (68) is provided with two edge pressing cross bars (66), both ends of each of the edge pressing cross bars (66) are hingedly connected to a pressure plate hinge rod (65), and the side of the edge pressing cross bar (66) away from the pressure plate frame (63) is fixedly connected to an edge pressing strip (67).

2. The precise positioning device for a laser marking machine according to claim 1, characterized in that: The end of the telescopic slide rod (510) is fixedly connected to a pressure push plate (511); the telescopic slide rod (510) is a telescopic structure; the telescopic slide rod (510) slides from the outer side surface of the groove plate (8) to the inside.

3. The precise positioning device for a laser marking machine according to claim 2, characterized in that: The threaded rod (51) is rotatably connected to the end of the transverse frame (4), the circle rod (57) slides through the top surface of the platform plate (3) to the bottom surface, and the deflection bend rod (58) is slidably connected to the bottom end of the circle rod (57).

4. The precise positioning device for a laser marking machine according to claim 3, characterized in that: The two ends of the spring sheet (62) are respectively fixedly connected to the pressure rod strip (56) and the pressure plate frame (63); the four vertical short rods (64) are fixedly connected to the top surface of the pressure plate frame (63) in groups of two; and the ends of the two pressure plate hinge rods (65) away from the edge pressure cross rod (66) are respectively hingedly connected to the slide groove frame (68) and the pressure plate frame (63).

5. The precise positioning device for a laser marking machine according to claim 4, characterized in that: The long sliding rod (71) is fixedly connected to the side groove arc plate (2), the lower tooth block (78) is meshingly connected to the gear (77), the front end of the lower tooth block (78) is fixedly connected to a touch pressure plate (79), the rear side of the lower tooth block (78) is fixedly connected to an elastic spring, and the two ends of the elastic spring are respectively fixedly connected to the lower tooth block (78) and the end of the tooth seat slide groove (711), and a through groove is opened on the top surface of the middle part of the auxiliary material table (74), and the through groove is slidably connected to the upper tooth block (76).

6. The precise positioning device for a laser marking machine according to claim 5, characterized in that: Transfer structures (9) are provided on both sides of the groove plate (8), and the transfer structure (9) comprises guide wheels (91), the guide wheels (91) are rotatably connected to the inner walls of the top ends of the support frame (1) on both sides, the outer sides of the guide wheels (91) are meshingly connected to chains (92), the sides of the chains (92) are fixedly connected to chain rods (93), and the chains (92) are symmetrically distributed about the vertical center line of the support frame (1).

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