A multi-angle workpiece marking device

Abstract

This utility model discloses a multi-angle workpiece marking device, relating to the field of laser marking technology. The device includes a flipping mechanism, a worktable, a clamping mechanism, and a marking mechanism. The worktable is positioned between the flipping mechanism and the marking mechanism, and is equipped with a push plate and a limiting plate parallel to a first direction. The push plate is connected to a second driving mechanism for moving along a second direction. The clamping mechanism includes grippers and a third driving mechanism for moving the grippers along the second direction. The flipping mechanism includes a first driving mechanism and an adsorbent for adsorbing workpieces. The first driving mechanism drives the adsorbent to move vertically and flips the adsorbent at a specified angle. The marking mechanism includes a laser marker and a lifting mechanism for adjusting the angle of the laser marker. This utility model enables vertical laser marking of multiple workpieces at multiple different angles of inclination, significantly improving marking efficiency and marking quality.

Description

Technical Field

[0001] This utility model relates to the field of laser marking technology, specifically to a multi-angle workpiece marking device. Background Technology

[0002] Laser marking technology uses a high-energy-density laser to locally irradiate a workpiece, thereby forming a permanent mark on the workpiece surface. To obtain the best etching effect and reduce marking time and power, the laser beam is usually required to be incident perpendicularly on the surface to be marked. In the production process of workpieces such as tungsten alloy shielding parts, laser marking needs to be performed on surfaces at multiple different angles to mark product information.

[0003] Currently, for workpieces with multiple surfaces to be marked at different angles, the common approach is to mark each surface individually. Each time a different surface is marked, the workpiece orientation needs to be readjusted or the marking equipment moved to ensure the laser beam is perpendicularly aligned with the current surface. This method requires frequent workpiece positioning calibration in batch processing, resulting in low overall marking efficiency and extended production cycles. Furthermore, multiple manual interventions or equipment repositionings increase the probability of errors, making it difficult to guarantee the marking quality of batch products. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model proposes a multi-angle workpiece marking device.

[0005] The technical solution adopted in this utility model is as follows: A multi-angle workpiece marking device includes a flipping mechanism, a worktable, a clamping mechanism, and a marking mechanism. The worktable is disposed between the flipping mechanism and the marking mechanism. The worktable is provided with a push plate and a limiting plate parallel to a first direction. The push plate is connected to a second driving mechanism for driving it to move along a second direction perpendicular to the first direction. The clamping mechanism includes a gripper and a third driving mechanism for driving the gripper to move along the second direction. The flipping mechanism includes a first driving mechanism and an adsorbent for adsorbing workpieces. The first driving mechanism is used to drive the adsorbent to move vertically and flip the adsorbent to a specified angle. The marking mechanism includes a laser marking device and a lifting mechanism for adjusting the angle of the laser marking device.

[0006] Preferably, the limiting plate is fixed to the worktable, and the limiting plate is also equipped with a position sensor for detecting the position of the workpiece, so as to ensure that the workpiece is accurately pushed to the set position and provide a trigger signal for subsequent positioning actions.

[0007] Preferably, the clamping mechanism includes multiple grippers spaced apart along a first direction, and the third driving mechanism is installed at the output end of the second driving mechanism, so that the multiple grippers can simultaneously clamp multiple workpieces, and the clamping mechanism can move together with the push plate, so that the clamping and pushing actions are performed in a unified manner.

[0008] Preferably, the flipping mechanism further includes a flipping bracket, a vertical guide rail fixed to the flipping bracket, a slider slidably disposed on the vertical guide rail, an adsorber bracket fixedly connected to the slider, and flipping guide plates fixed to both sides of the flipping bracket; the adsorber is mounted on the adsorber bracket, the first drive mechanism is connected to the slider, and the flipping guide plate has guide grooves including vertical and curved sections; the adsorber bracket cooperates with the guide grooves through rotating bearings disposed at both ends thereon. The descent and angle flipping actions of the adsorber can be combined through a single vertical drive, and the movement trajectory is controlled by the mechanical guide grooves, ensuring precise and reliable flipping angles.

[0009] Preferably, the adsorber support includes a long plate extending along a first direction, a first short plate and a second short plate respectively connected to both ends of the long plate, and a crossbar connecting the first short plate and the second short plate; the long plate is fixedly connected to the slider, and the crossbar is connected to the first short plate and the second short plate via bearings; the adsorber is fixed to the crossbar. This forms a stable frame structure capable of supporting multiple adsors, and the crossbar can rotate within the support via bearings, making it a key component for achieving workpiece flipping.

[0010] Preferably, the outer surfaces of the first and second short plates are each provided with a flip-over connector, and the flip-over connector is provided with a first mounting hole and a second mounting hole; the end of the crossbar is fixedly connected to the first mounting hole, and the rotating bearing is installed in the second mounting hole; the rotation of the crossbar is effectively associated with the guiding displacement of the guide groove, so that the vertical movement can be smoothly converted into the rotational movement of the crossbar through the movement of the bearing in the curved guide groove, thereby achieving reliable flip-over transmission.

[0011] Preferably, the marking mechanism further includes a marking device base, a rotating base plate, and a fixed base plate; the laser marking device is mounted on the marking device base, the marking device base is slidably connected to the rotating base plate, the rotating base plate is hinged to the fixed base plate, and the output end of the lifting mechanism is hinged to the rotating base plate; thus forming an adjustable angle and horizontal position laser marking unit. By changing the tilt angle of the rotating base plate through the lifting mechanism, the laser beam can be precisely and vertically aligned with the workpiece surface at different flip angles.

[0012] Preferably, the rotating base plate is provided with a dovetail groove, the marking device base is provided with a protrusion that cooperates with the dovetail groove, and the protrusion is provided with screws for fixing the position of the marking device base, so that the laser marking device can flexibly adjust its position in the horizontal direction to adapt to different workpieces, and the position stability during the marking process is ensured by tightening the screws.

[0013] Preferably, the spacing between multiple adsorbers, the spacing between multiple grippers, and the spacing between multiple laser marking devices are the same, enabling the equipment to complete the loading, positioning, flipping, and multi-angle marking of multiple workpieces at one time, significantly improving the efficiency and consistency of batch processing.

[0014] This invention achieves automated, batch processing of workpieces with multiple tilted marking surfaces by integrating automatic positioning, clamping, multi-angle flipping, and laser angle adjustment mechanisms. The workpiece positioning and flipping are precisely controlled by the mechanical structure, ensuring that the laser beam is perpendicularly irradiated onto the marking surface each time, resulting in clear and consistent marking quality. Simultaneously, the multi-station synchronous design significantly reduces the average marking time per piece, improving production efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a multi-angle workpiece marking device according to the present invention; Figure 2 This is a schematic diagram of the clamping mechanism described in this utility model; Figure 3 This is a schematic diagram of the structure of the flipping mechanism described in this utility model; Figure 4 This is a schematic diagram of the marking mechanism described in this utility model.

[0016] Reference numerals: 1-Workpiece to be marked, 2-Flipping mechanism, 21-Flipping bracket, 22-Vertical guide rail, 23-Slider, 24-First driving mechanism, 25-Adsorber, 26-Adsorber bracket, 261-Long plate, 262-First short plate, 263-Second short plate, 264-Horizontal bar, 265-Flipping connector, 27-Flipping guide plate, 271-Guide groove; 3-Workbench, 31-Push plate, 32-Limiting plate, 33-Second driving mechanism, 34-Position sensor, 35-Conveyor belt, 36-Baffle, 4-Clamping mechanism, 41-Gripper, 42-Third driving mechanism; 5-Marking mechanism, 51-Laser marking device, 52-Marking device base, 53-Fixed base plate, 54-Rotating base plate, 55-Lifting mechanism. Detailed Implementation

[0017] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0018] The multi-angle workpiece marking equipment described in this embodiment is designed for a specific workpiece. This workpiece is a tungsten alloy shielding component with three marking surfaces at different angles. These surfaces are located inside a circular hole, and the marking position is at the bottom of the hole. This invention is also applicable to similar alloy workpieces containing multiple marking surfaces at different angles, with the maximum angle difference between the multiple marking surfaces exceeding 90°.

[0019] like Figure 1 As shown, a multi-angle workpiece marking device includes a flipping mechanism 2, a worktable 3, a clamping mechanism 4, and a marking mechanism 5. The worktable 3 is positioned between the flipping mechanism 2 and the marking mechanism 5. A push plate 31 and a limiting plate 32 are mounted on the worktable 3. The push plate 31 and the limiting plate 32 are arranged parallel to each other, with their length direction defined as a first direction. The push plate 31 is driven by a second driving mechanism 33 to move along a second direction perpendicular to the first direction. The limiting plate 32 is fixed to the worktable 3. Multiple workpieces 1 to be marked are evenly spaced between the push plate 31 and the limiting plate 32 with the same posture. The sides of the push plate 31 and the limiting plate 32 facing the workpieces 1 to be marked match the shape of the workpieces 1 to be marked. A position sensor 34 is mounted on the limiting plate 32 to detect whether the workpieces 1 to be marked on the worktable 3 have been placed in the set position. In this embodiment, the workbench 3 is provided with a conveyor belt 35, and a baffle 36 extending in the first direction is provided on one side of the thrust plate 31. The baffle 36 has an opening in the middle to allow the thrust plate 31 to pass through. The position sensor 34 can also be set on the baffle 36. The workpieces 1 to be marked are grouped in multiples, and the workpieces 1 in each group are evenly spaced. They are transported to the front of the thrust plate 31 on the conveyor belt 35 according to the set program.

[0020] like Figure 2 As shown, the clamping mechanism 4 is disposed on one side of the push plate 31, and includes multiple horizontally arranged grippers 41 and a third drive mechanism 42. The grippers 41 are evenly spaced along the first direction, and the interval between the multiple grippers 41 is the same as the interval between the multiple workpieces 1 to be marked. Each gripper 41 is mounted on the output end of the corresponding third drive mechanism 42 and moves along the second direction under the drive of the third drive mechanism 42; the third drive mechanism 42 is mounted on the output end of the second drive mechanism 33 and moves together with the push plate 31. The push plate 31 and the limiting plate 32 are used to restrict the movement of the workpieces 1 to be marked in the second direction, and the grippers 41 are used to restrict the movement of the workpieces 1 to be marked in the first direction.

[0021] like Figure 3As shown, the flipping mechanism 2 includes a flipping bracket 21, vertical guide rails 22, sliders 23, a first driving mechanism 24, an adsorber 25, an adsorber bracket 26, and a flipping guide plate 27. Multiple vertical guide rails 22 are fixed to the flipping bracket 21, and sliders 23 are slidably disposed on the vertical guide rails 22. The adsorber bracket 26 is fixed to all sliders 23. The adsorber support 26 is a rectangular support composed of a long plate 261, a first short plate 262, a second short plate 263, and a crossbar 264. The length of the adsorber support 26 extends along a first direction. The first short plate 262 and the second short plate 263 are fixedly connected to the long plate 261. The crossbar 264 is connected to the first short plate 262 and the second short plate 263 via bearings. Each of the outer sides of the first short plate 262 and the second short plate 263 is provided with two flip-connecting pieces 265. The flip-connecting pieces 265 are provided with two mounting holes with a certain interval. The first mounting hole is fixed to the end of the crossbar 264 extending through the short plate, and the second mounting hole is equipped with a rotating bearing. The inner ring of the rotating bearing is fixed to the flip-connecting piece 265. Multiple adsors 25 are fixed on the crossbar 264 of the adsorber support 26 and are evenly distributed along the length of the crossbar 264. The adsors 25 are used to adsorb and fix the workpiece 1 to be marked. The interval between the multiple adsors 25 is the same as the interval between the multiple workpieces 1 to be marked. Two flipping guide plates 27 are fixed on both sides of the flipping bracket 21 in the first direction and extend to both sides of the adsorber bracket 26. The flipping guide plates 27 have guide grooves 271, which can be divided into a vertical section and a 90° curved section. Two rotating bearings of the adsorber bracket 26 are respectively installed in the guide grooves 271 of the two flipping guide plates 27. The slider 23 is driven by the first driving mechanism 24 to move up and down along the vertical guide rail 22. The slider 23 drives the adsorber bracket 26 to move together. When the rotating bearing enters the 90° curved section of the guide groove 271, the rotating bearing is guided by the curved section to produce a horizontal offset. Through the flipping connector 265, the crossbar 264 is caused to rotate along its own axis. The greater the horizontal offset of the rotating bearing, the greater the rotation angle of the crossbar 264, which can reach a maximum of 90° flipping.

[0022] like Figure 4As shown, the marking mechanism 5 includes a laser marking device 51, a marking device base 52, a fixed base plate 53, a rotating base plate 54, and a lifting mechanism 55. The marking device base 52 and the rotating base plate 54 are connected by a fixed sliding connection, with the sliding direction perpendicular to a first direction. Specifically, the rotating base plate 54 has multiple dovetail grooves, and the lower surface of the marking device base 52 has protrusions matching the shape of the dovetail grooves. Multiple threaded holes are located at the positions of the protrusions, and screws are installed in the threaded holes. The laser range of the laser marking device 51 can be adjusted by adjusting the position of the marking device base 52 in the dovetail grooves, and the relative position of the marking device base 52 and the rotating base plate 54 can be fixed by tightening the screws. The rotating base plate 54 and the fixed base plate 53 are hinged together on the side closer to the workpiece 1 to be marked, and the output end of the lifting mechanism 55 is hinged together on the side of the rotating base plate 54 away from the workpiece 1 to be marked. Multiple laser marking devices 51 are evenly spaced and mounted on a marking device base 52, with the laser direction of each device 51 facing the corresponding workpiece 1 to be marked. A lifting mechanism 55 raises or lowers the rotating base plate 54 to adjust the angle of the laser marking device 51, aligning it with different surfaces of the workpiece 1 to be marked. In this embodiment, the lifting mechanism 55 uses two vertically arranged electric push rods, with the output ends of the two electric push rods connected to two corners of the marking device base 52 on the side furthest from the workpiece 1.

[0023] With the cooperation of the flipping mechanism and the laser push rod motor, this equipment can achieve vertical marking of multiple surfaces to be marked at any angle within a 90-degree range.

[0024] against Figure 1 The workpiece to be marked shown above, the working process of the above equipment includes the following steps: 1) Loading and positioning: Multiple workpieces 1 to be marked are moved between the push plate 31 and the limit plate 32 of the worktable 3; when the position sensor 34 on the limit plate 32 detects that the workpiece 1 to be marked is in place, the second drive mechanism 33 drives the push plate 31 to move along the second direction, pushing the workpiece 1 to be marked to abut against the limit plate 32, thus completing the positioning of the workpiece 1 to be marked in the second direction; at the same time, the third drive mechanism 42 of the clamping mechanism 4 drives each jaw 41 to move forward along the second direction and clamp the workpiece 1 to be marked, thus completing the positioning of the workpiece 1 to be marked in the first direction.

[0025] 2) Adsorption and pick-up: The first drive mechanism 24 drives the slider 23 and the adsorber bracket 26 to move downward. At this time, the rotating bearing moves downward in the vertical section of the guide groove 271 until the adsorber 25 contacts and firmly adsorbs the positioned workpiece 1 to be marked. The gripper 41 is released, and the gripper 41 and the push plate 31 return to their original positions.

[0026] 3) First angle marking: The first drive mechanism 24 controls the slider 23 to move upward according to the program, and the rotating bearing enters the curved section of the guide groove 271, so that the adsorber bracket 26 drives the workpiece 1 to be marked to flip to the predetermined angle; the lifting mechanism 55 of the marking mechanism 5 is activated to adjust the angle of the laser marking device 51 so that the laser beam is vertically aligned with the marking position of the first marking surface on the workpiece 1; the laser marking device 51 is started to complete the marking of the surface.

[0027] 4) Marking at the second angle: The first drive mechanism 24 continues to control the slider 23 to move upward, adjusting the workpiece 1 to be marked to flip to the second predetermined angle; the lifting mechanism 55 adjusts the angle of the laser marking device 51 so that the laser beam is vertically aligned with the marking position of the second marking surface and marks it.

[0028] 5) Marking at the third angle: The first drive mechanism 24 continues to control the slider 23 to move upward, adjusting the workpiece 1 to be marked to flip to the third predetermined angle; the lifting mechanism 55 adjusts the angle of the laser marking device 51 so that the laser beam is vertically aligned with the marking position of the third marking surface and marks it.

[0029] 6) Material unloading and resetting: After all marking is completed, the adsorber 25 releases adsorption, the workpiece 1 to be marked falls back to the worktable 3, and the first drive mechanism 24 returns to its initial state.

[0030] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any brief modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A multi-angle workpiece marking device, characterized in that, The device includes a flipping mechanism, a worktable, a clamping mechanism, and a marking mechanism. The worktable is positioned between the flipping mechanism and the marking mechanism. The worktable has a push plate and a limiting plate parallel to a first direction. The push plate is connected to a second driving mechanism for moving along a second direction perpendicular to the first direction. The clamping mechanism includes grippers and a third driving mechanism for moving the grippers along the second direction. The flipping mechanism includes a first driving mechanism and an adsorbent for adsorbing workpieces. The first driving mechanism drives the adsorbent to move vertically and flips the adsorbent by a specified angle. The marking mechanism includes a laser marking device and a lifting mechanism for adjusting the angle of the laser marking device.

2. The multi-angle workpiece marking equipment according to claim 1, characterized in that, The limiting plate is fixed to the worktable, and the worktable is also equipped with a position sensor for detecting the position of the workpiece.

3. The multi-angle workpiece marking equipment according to claim 1, characterized in that, The clamping mechanism includes a plurality of grippers spaced apart along a first direction, and the third driving mechanism is mounted on the output end of the second driving mechanism.

4. The multi-angle workpiece marking equipment according to claim 1, characterized in that, The flipping mechanism further includes a flipping bracket, a vertical guide rail fixed to the flipping bracket, a slider slidably disposed on the vertical guide rail, an adsorber bracket fixedly connected to the slider, and flipping guide plates fixed to both sides of the flipping bracket; the adsorber is mounted on the adsorber bracket, the first driving mechanism is connected to the slider, and the flipping guide plate is provided with a guide groove including a vertical section and a curved section, and the adsorber bracket cooperates with the guide groove through rotating bearings disposed at both ends thereon.

5. The multi-angle workpiece marking equipment according to claim 4, characterized in that, The adsorber support includes a long plate extending along a first direction, a first short plate and a second short plate respectively connected to both ends of the long plate, and a crossbar connected between the first short plate and the second short plate; the long plate is fixedly connected to the slider, and the crossbar is connected to the first short plate and the second short plate through bearings; the adsorber is fixed on the crossbar.

6. The multi-angle workpiece marking equipment according to claim 5, characterized in that, The outer sides of the first and second short plates are each provided with a flip-up connector, and the flip-up connector is provided with a first mounting hole and a second mounting hole; the end of the crossbar is fixedly connected to the first mounting hole, and the rotating bearing is installed in the second mounting hole.

7. The multi-angle workpiece marking equipment according to claim 1, characterized in that, The marking mechanism also includes a marking device base, a rotating base plate, and a fixed base plate; the laser marking device is mounted on the marking device base, the marking device base is slidably connected to the rotating base plate, the rotating base plate is hinged to the fixed base plate, and the output end of the lifting mechanism is hinged to the rotating base plate.

8. The multi-angle workpiece marking equipment according to claim 7, characterized in that, The rotating base plate is provided with a dovetail groove, and the marking device base is provided with a protrusion that mates with the dovetail groove. The protrusion is provided with screws for fixing the position of the marking device base.

9. The multi-angle workpiece marking equipment according to claim 1, characterized in that, The spacing between multiple adsorbers, the spacing between multiple grippers, and the spacing between multiple laser marking devices are the same.

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