Automatic laser engraving machine

Abstract

The utility model discloses an automatic laser carving machine which has an automatic feeding, discharging and stacking function, can carry out feeding, discharging and laser carving operation at the same time, and improves production efficiency. The tray stacking device comprises a tray feeding mechanism and a tray discharging mechanism, a tray conveying device is arranged between the tray feeding mechanism and the tray discharging mechanism, the tray feeding mechanism and the tray discharging mechanism are used for stacking trays, and a plurality of products are placed in the trays. A tray positioning and clamping device is arranged in the middle of the tray conveying device, a rotating mechanism is arranged at the front end of the tray positioning and clamping device, a carrier assembly matched with a product is arranged on the rotating mechanism, and a feeding and discharging robot is arranged on one side between the rotating mechanism and the tray positioning and clamping device. And a laser etching device is arranged above the rear end of the rotating mechanism. The laser engraving machine is applied to the technical field of laser engraving equipment.

Description

Technical Field

[0001] The utility model relates to an automatic laser engraving machine, in particular to an automatic laser engraving machine for watch cases. Background Art

[0002] During the production process of watch cases, both sides need to be laser engraved, and after laser engraving, both sides need to be pad printed. The traditional production method is that the operator takes out a product from the turnover tray in the unprocessed area and places it steadily on the laser engraving tooling. Before placing the product, the cleanliness of the tooling must be confirmed. Then, the bottom of the product is facing down, and the product is pressed with both hands to confirm that the product is clamped in place. Then, the front of the product is laser engraved by the laser engraving machine. After the laser engraving is completed, the operator takes out the product and turns it over and puts it back on the turnover tray. Then, the operator of the next process turns the product over and puts it into the laser engraving machine for laser engraving on the back. This design requires manual loading and unloading, and then the laser engraving machine needs to be started for laser engraving after each product is clamped in place. At the same time, the cleanliness of the hands of the manual loaders must be ensured to avoid affecting the surface cleanliness of the product and affecting the quality of subsequent laser engraving. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide an automatic laser engraving machine with automatic loading and unloading and stacking functions, which can simultaneously perform loading and unloading and laser engraving operations to improve production efficiency.

[0004] The technical solution adopted by the present invention is: the present invention includes a pallet loading mechanism and a pallet unloading mechanism, a pallet conveying device is arranged between the pallet loading mechanism and the pallet unloading mechanism, the pallet loading mechanism and the pallet unloading mechanism are used to stack pallets, a number of products are placed in the pallet, a pallet positioning and clamping device is arranged in the middle of the pallet conveying device, a rotating mechanism is arranged at the front end of the pallet positioning and clamping device, a carrier assembly adapted to the product is arranged on the rotating mechanism, a loading and unloading robot is arranged on one side between the rotating mechanism and the pallet positioning and clamping device, and a laser engraving device is arranged above the rear end of the rotating mechanism.

[0005] Furthermore, a hood is provided between the tray loading mechanism and the tray unloading mechanism, the tray conveying device is located inside the hood, an MCU controller is integrated on the hood, and the tray loading mechanism, the tray unloading mechanism, the tray conveying device, the tray positioning and clamping device, the rotating mechanism, the loading and unloading robots and the laser engraving device are all electrically connected to the MCU controller.

[0006] Further, the rotating mechanism includes a rotating motor and a rotating carrier plate connected to the rotating motor. The carrier assemblies are installed at both the front and rear ends of the rotating carrier plate. The carrier assembly includes a carrier bottom plate, and two product carriers are provided on the carrier bottom plate. Claw avoidance grooves are provided at both ends of the middle part of the product carrier.

[0007] Further, the tray loading mechanism and the tray unloading mechanism include a tray storage frame. A tray lifting device is provided below the tray storage frame, and tray lifting and supporting devices are provided at both ends of the tray storage frame. The two tray lifting and supporting devices are used to lift and support the trays in the tray storage frame, and the tray lifting device is used to lift the tray from the tray conveying device into the tray storage frame or to lift and lower the tray in the tray storage frame to the tray conveying device.

[0008] Further, the loading and unloading robot includes a four-axis robot. A U-shaped mounting plate is provided at the end of the four-axis robot. First lifters are symmetrically provided at both ends of both sides of the U-shaped mounting plate. External clamping cylinders are installed on the two first lifters on the same side at one end, and first inner supporting clamping cylinders adapted to the claw avoidance grooves are installed on the two first lifters on the same side at the other end. The external clamping cylinder is used to clamp the product from the outside, and the first inner supporting clamping cylinder is used to clamp the product from the inside. The product is a watch case.

[0009] Further, the tray positioning and clamping device includes a tray lifting mechanism. A stopper and a pipeline check valve are respectively provided at the left and right ends of the tray lifting mechanism, and tray incoming sensors are provided below the left and right ends of the tray lifting mechanism. Tray pressing plates are provided around the upper part of the tray lifting mechanism. The tray lifting mechanism is used to lift and press the tray on the tray conveying device against the tray pressing plates. A CCD camera assembly is provided at the top inside the machine cover and directly above the tray lifting mechanism. The CCD camera assembly is used to photograph the real-time positions of each product on the tray.

[0010] Further, the laser engraving device includes a handwheel screw lifting device, a laser engraver connected to the handwheel screw lifting device, and a laser engraving operation display screen.

[0011] Furthermore, a product flipping device is provided on the other side between the rotating mechanism and the pallet positioning and clamping device, and the product flipping device includes a lifting drive device and a flipping cylinder connected to the lifting drive device and a flipping swing arm connected to the flipping cylinder. The lower end of the flipping swing arm is symmetrically provided with a second internal support clamping cylinder adapted to the clamping avoidance groove, and swing arm in-place buffers are symmetrically provided at both ends of the flipping cylinder. The swing arm in-place buffers are located in the swing stroke of the flipping swing arm and are used to control the rotation of the flipping swing arm at 0° and 180°.

[0012] The beneficial effects of the present invention are: 1. Through the pallet loading mechanism, the pallet unloading mechanism and the pallet conveying device, fully automatic loading and unloading can be achieved, and it is only necessary to manually stack the pallets to the pallet loading mechanism and take out the pallets from the pallet unloading mechanism at a fixed time, which can greatly save labor costs, and manual loading and unloading once can be used for long-term automatic processing and production; 2. The loading and unloading robot automatically loads and unloads the materials to the rotating mechanism, and then the rotating mechanism performs laser engraving on the products, so that the present invention can load and unload materials and perform laser engraving at the same time, saving production time, improving production efficiency, and improving production time and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of the utility model;

[0014] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0015] Figure 3 It is a structural diagram of the pallet unloading mechanism;

[0016] Figure 4 It is a structural schematic diagram of the pallet positioning and clamping device;

[0017] Figure 5 It is a structural diagram of the rotating mechanism;

[0018] Figure 6 It is a structural diagram of the loading and unloading robot;

[0019] Figure 7 It is a structural diagram of the laser engraving device;

[0020] Figure 8 It is a structural diagram of a product turning device. DETAILED DESCRIPTION

[0021] like Figures 1 to 8As shown, in this embodiment, the utility model includes a pallet loading mechanism 1 and a pallet unloading mechanism 2, a pallet conveying device 3 is arranged between the pallet loading mechanism 1 and the pallet unloading mechanism 2, the pallet loading mechanism 1 and the pallet unloading mechanism 2 are used to stack pallets 4, and a number of products 5 are placed in the pallet 4, a pallet positioning and clamping device 6 is arranged in the middle of the pallet conveying device 3, a rotating mechanism 7 is arranged at the front end of the pallet positioning and clamping device 6, a carrier assembly 8 adapted to the product 5 is arranged on the rotating mechanism 7, a loading and unloading robot 9 is arranged on one side between the rotating mechanism 7 and the pallet positioning and clamping device 6, and a laser engraving device 10 is arranged above the rear end of the rotating mechanism 7.

[0022] In this embodiment, a hood 11 is further provided between the tray loading mechanism 1 and the tray unloading mechanism 2, the tray conveying device 3 is located inside the hood 11, and an MCU controller 12 is integrated on the hood 11. The tray loading mechanism 1, the tray unloading mechanism 2, the tray conveying device 3, the tray positioning and clamping device 6, the rotating mechanism 7, the loading and unloading robot 9 and the laser engraving device 10 are all electrically connected to the MCU controller 12.

[0023] In this embodiment, the rotating mechanism 7 includes a rotating motor 71 and a rotating carrier plate 72 connected to the rotating motor 71. The carrier assembly 8 is installed at the front and rear ends of the rotating carrier plate 72. The carrier assembly 8 includes a carrier base plate 81. Two product carriers 82 are provided on the carrier base plate 81. The product carrier 82 is provided with a clamping claw avoidance groove 83 at both ends of the middle part.

[0024] In this embodiment, the pallet loading mechanism 1 and the pallet unloading mechanism 2 include a pallet material frame 21, a pallet lifting device 22 is provided below the pallet material frame 21, and pallet lifting and supporting devices 23 are provided at both ends of the pallet material frame 21. The two pallet lifting and supporting devices 23 are used to lift and support the pallet 4 in the pallet material frame 21, and the pallet lifting device 22 is used to lift the pallet 4 from the pallet conveying device 3 into the pallet material frame 21 or lift the pallet 4 in the pallet material frame 21 and lower it to the pallet conveying device 3.

[0025] In this embodiment, the loading and unloading robot 9 includes a four-axis robot 91. At the end of the four-axis robot 91, there is a U-shaped mounting plate 92. At both ends of both sides of the U-shaped mounting plate 92, first lifters 93 are symmetrically arranged. On the same side of one end, two of the first lifters 93 are equipped with external clamping cylinders 94. On the same side of the other end, two of the first lifters 93 are equipped with first internal support clamping jaw cylinders 95 adapted to the jaw avoidance grooves 83. The external clamping cylinder 94 is used to clamp the product 5 from the outside, and the first internal support clamping jaw cylinder 95 is used to clamp the product 5 from the inside. The product 5 is a watch case.

[0026] In this embodiment, the tray conveying device 3 includes two symmetric support plates 31. On the inner side walls of the support plates 31, conveyor belts 32 are provided. The tray positioning and clamping device 6 includes a tray lifting mechanism 61 located between the two conveyor belts 32. At the left and right ends of the tray lifting mechanism 61, a stopper 62 and a pipeline check valve 63 are respectively provided. The stopper 62 is used to block the tray 5 from flowing forward continuously after it reaches the position, and the pipeline check valve 63 is used to prevent the tray 4 from flowing back. Below the left and right ends of the tray lifting mechanism 61, tray incoming sensors 64 are provided. Around the upper part of the tray lifting mechanism 61, tray pressing plates 65 are provided. The tray lifting mechanism 61 is used to lift and press the tray 4 on the tray conveying device 3 against the tray pressing plates 65. At the top inside the machine cover 11 and directly above the tray lifting mechanism 61, a CCD camera assembly 66 is provided. The CCD camera assembly 66 is used to photograph the real-time positions of each product 5 on the tray 4. Since the loading and unloading robot 9 may vibrate other products 5 to be processed when picking up and placing the product 5, thus affecting the initial position of the product 5 on the tray 4, the CCD camera assembly 66 needs to perform real-time positioning and photographing on the product 5 to be picked up every time the loading and unloading robot 9 picks up the material.

[0027] In this embodiment, the laser engraving device 10 includes a handwheel screw lifting device 101, a laser engraver 102 connected to the handwheel screw lifting device 101, and a laser engraving operation display screen 103. With this design, after adjusting the height of the laser engraving machine 102 through the handwheel screw lifting device 101, the product 5 is laser engraved by the laser engraver 102.

[0028] In this embodiment, a product flipping device 13 is provided on the other side between the rotating mechanism 7 and the pallet positioning and clamping device 6. The product flipping device 13 includes a lifting drive device 131 and a flip cylinder 132 connected to the lifting drive device 131 and a flip swing arm 133 connected to the flip cylinder 132. The lower end of the flip swing arm 133 is symmetrically provided with a second internal support type clamping cylinder 134 adapted to the clamping claw avoidance groove 83. The two ends of the flip cylinder 132 are symmetrically provided with a swing arm in place buffer 135. The swing arm in place buffer 135 is located in the swing stroke of the flip swing arm 133 and is used to control the flipping. The swing arm 133 rotates between 0° and 180°. This design allows the product to be turned over after processing, making it convenient for the next step to directly process the back side, saving the time cost of manual turning. The specific operation is to drive the flipping swing arm 133 to rotate 180° through the flipping cylinder 132, so that the second internal support type clamping cylinder 134 is located directly above the front product carrier 82, and then the second internal support type clamping cylinder 134 is driven by the lifting drive device 131 to descend into the clamping avoidance groove 83, and then the second internal support type clamping cylinder 134 is started to expand and clamp the product 5, and then the lifting drive device 131 is reset, and then the flipping cylinder 132 is reset to wait for the loading and unloading robot 9 to unload the material.

[0029] The loading and unloading robot then moves the product to the product carrier at the front end for laser engraving. The loading and unloading robot then moves the product to the product carrier at the front end for laser engraving. While the laser engraving is in progress, the loading and unloading robot can continue to load the product to the product carrier at the front end of the rotating mechanism. After the laser engraving is completed, the rotating mechanism continues to rotate 180° to continue the next laser engraving operation. At the same time, the product flipping device takes out the processed product from the product carrier and flips it over. The loading and unloading robot then continues to put new products to be processed into the product carrier at the front end, and then unloads the product clamped by the product flipping device into the tray. Until the product processing of the tray is completed, the tray is transported to the tray unloading mechanism for stacking by the pallet conveying device.

[0030] The utility model is applied to the technical field of laser engraving equipment.

[0031] Although the embodiments of the present invention are described with practical solutions, they do not limit the meaning of the present invention. For those skilled in the art, it is obvious to modify the implementation scheme and combine it with other solutions based on this description.

Claims

1. An automatic laser engraving machine, characterized by: It comprises a pallet loading mechanism (1) and a pallet unloading mechanism (2), a pallet conveying device (3) is provided between the pallet loading mechanism (1) and the pallet unloading mechanism (2), the pallet loading mechanism (1) and the pallet unloading mechanism (2) are used to stack pallets (4), a plurality of products (5) are placed in the pallet (4), a pallet positioning and clamping device (6) is provided in the middle of the pallet conveying device (3), a rotating mechanism (7) is provided at the front end of the pallet positioning and clamping device (6), a carrier assembly (8) adapted to the product (5) is provided on the rotating mechanism (7), a loading and unloading robot (9) is provided on one side between the rotating mechanism (7) and the pallet positioning and clamping device (6), and a laser engraving device (10) is provided above the rear end of the rotating mechanism (7).

2. The automatic laser engraving machine according to claim 1, characterized in that: A hood (11) is further provided between the tray loading mechanism (1) and the tray unloading mechanism (2), the tray conveying device (3) is located inside the hood (11), an MCU controller (12) is integrated on the hood (11), and the tray loading mechanism (1), the tray unloading mechanism (2), the tray conveying device (3), the tray positioning and clamping device (6), the rotating mechanism (7), the loading and unloading robot (9) and the laser engraving device (10) are all electrically connected to the MCU controller (12).

3. The automatic laser engraving machine according to claim 1, characterized in that: The rotating mechanism (7) comprises a rotating motor (71) and a rotating carrier (72) connected to the rotating motor (71), the carrier assembly (8) being mounted on both the front and rear ends of the rotating carrier (72), the carrier assembly (8) comprising a carrier base (81), two product carriers (82) being arranged on the carrier base (81), and claw avoidance grooves (83) being arranged at both ends of the middle portion of the product carrier (82).

4. The automatic laser engraving machine according to claim 1, characterized in that: The pallet loading mechanism (1) and the pallet unloading mechanism (2) comprise a pallet material frame (21), a pallet lifting device (22) is provided below the pallet material frame (21), and pallet lifting and supporting devices (23) are provided at both ends of the pallet material frame (21), the two pallet lifting and supporting devices (23) being used to lift and support the pallet (4) in the pallet material frame (21), and the pallet lifting device (22) being used to lift the pallet (4) from the pallet conveying device (3) into the pallet material frame (21) or lift the pallet (4) in the pallet material frame (21) down to the pallet conveying device (3).

5. The automatic laser engraving machine according to claim 3, characterized in that: The loading and unloading robot (9) includes a four-axis robot (91). At the end of the four-axis robot (91), there is a U-shaped mounting plate (92). At both ends of both sides of the U-shaped mounting plate (92), first lifters (93) are symmetrically arranged. On one side, two of the first lifters (93) on the same side are equipped with an external clamping cylinder (94). On the other side, two of the first lifters (93) on the same side are equipped with a first internal support clamping jaw cylinder (95) adapted to the jaw avoidance groove (83). The external clamping cylinder (94) is used to clamp the product (5) from the outside, and the first internal support clamping jaw cylinder (95) is used to clamp the product (5) from the inside. The product (5) is a watch case.

6. The automatic laser engraving machine according to claim 2, characterized in that: The tray positioning and clamping device (6) includes a tray lifting mechanism (61). At the left and right ends of the tray lifting mechanism (61), there are respectively a stopper (62) and a pipeline check valve (63). Below the left and right ends of the tray lifting mechanism (61), there is a tray incoming material sensor (64). Around the upper part of the tray lifting mechanism (61), there are tray pressing plates (65). The tray lifting mechanism (61) is used to lift and press the tray (4) on the tray conveying device (3) against the tray pressing plates (65). At the top inside the hood (11) and directly above the tray lifting mechanism (61), there is a CCD camera assembly (66). The CCD camera assembly (66) is used to photograph the real-time positions of each product (5) on the tray (4).

7. The automatic laser engraving machine according to claim 1, characterized in that: The laser engraving device (10) includes a handwheel screw lifting device (101), a laser engraver (102) connected to the handwheel screw lifting device (101), and a laser engraving operation display screen (103).

8. The automatic laser engraving machine according to claim 5, characterized in that: On the other side between the rotating mechanism (7) and the tray positioning and clamping device (6), there is a product turning device (13). The product turning device (13) includes a lifting drive device (131), a turning cylinder (132) connected to the lifting drive device (131), and a turning swing arm (133) connected to the turning cylinder (132). At the lower end of the turning swing arm (133), second internal support clamping jaw cylinders (134) adapted to the jaw avoidance groove (83) are symmetrically arranged. At both ends of the turning cylinder (132), there are swing arm in-place buffers (135). The swing arm in-place buffers (135) are located in the swinging stroke of the turning swing arm (133) and are used to control the rotation of the turning swing arm (133) between 0° and 180°.

Images