Protective handheld laser marking machine

Abstract

The utility model relates to the field of laser equipment, and discloses a protection type handheld laser marking machine which comprises a main machine and a marking machine head, the main machine is in signal connection with the marking machine head through a transmission line, a protection mechanism is arranged on the lower portion of the marking machine head and comprises a protection frame, the lower surface of the protection frame is fixedly connected with a contact piece, and the contact piece is connected with the main machine. A mounting frame is fixedly connected to the outer wall of the protection frame, an air pressure block is fixedly connected to the inner wall of the mounting frame, a piston plate is connected to the inner wall of the air pressure block in a piston mode, vent holes are formed in the inner wall of the piston plate, and a connecting rod is fixedly connected to the end, away from the marking machine head, of the piston plate. According to the utility model, through the arrangement of the protection mechanism, the impact force of an external object can be effectively buffered when the external object impacts towards the direction of the marking machine head, and the rear baffle plate does not move back and forth, so that the effect of preventing the marking machine head from deviating and causing danger due to the impact of the external object is achieved.

Description

Technical Field

[0001] This utility model relates to the field of laser equipment, and in particular to a protective handheld laser marking machine. Background Technology

[0002] A laser marking machine is a device that uses a high-energy-density laser beam, which is generated by a laser generator and whose laser path is precisely controlled by a galvanometer scanning system. Under the operation of a computer control system, it forms permanent marks on the surface of various materials.

[0003] Because industrial lasers are classified as Class IV laser products, they pose a potential hazard to the eyes and skin. If a laser directly or indirectly irradiates the human eye or skin, it may cause irreparable damage to the cornea or burns to the skin, resulting in irreversible harm.

[0004] Currently, to ensure the safety of operators when using the equipment, baffles are often installed around the marking area of ​​the handheld laser marking machine to achieve a protective effect. However, when the operator is operating the machine, if there is an impact force in the direction that is not the same as the direction of the force applied, the laser marking machine may shift in position, causing the laser irradiation direction to deviate, which may lead to danger. Therefore, a protective handheld laser marking machine is proposed to solve the above problems. Summary of the Invention

[0005] To overcome the above shortcomings, this utility model provides a protective handheld laser marking machine, which aims to improve the problem in the prior art that when a foreign object hits the marking machine, it can easily cause the laser irradiation direction to deviate, leading to danger.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a protective handheld laser marking machine, comprising a main unit and a marking head, wherein the main unit and the marking head are connected by a transmission line, and a protective mechanism is provided at the lower part of the marking head;

[0007] The protective mechanism includes a protective frame, a contact piece fixedly connected to the lower surface of the protective frame, a mounting frame fixedly connected to the outer wall of the protective frame, a pneumatic block fixedly connected to the inner wall of the mounting frame, a piston plate piston-connected to the inner wall of the pneumatic block, a vent hole opened on the inner wall of the piston plate, a connecting rod fixedly connected to the end of the piston plate away from the marking head, a baffle fixedly connected to the end of the connecting rod away from the piston plate, a buffer assembly jointly provided on the side of the baffle near the marking head and the interior of the protective frame, and a stabilizing movement assembly jointly provided on the side of the baffle near the marking head and the exterior of the protective frame.

[0008] As a further description of the above technical solution:

[0009] The buffer assembly includes a fixed plate, the outer wall of which is fixedly connected to the inner wall of a mounting frame, a slider is slidably connected to the inner wall of the mounting frame, a connecting rod is hinged to the end of the slider away from the marking head, the end of the connecting rod away from the slider is hinged to the side of the baffle near the marking head, and the side of the slider near the air pressure block is elastically connected to the outer wall of the fixed plate by a spring.

[0010] As a further description of the above technical solution:

[0011] The stable moving component includes a positioning block, the outer wall of which is fixedly connected to the outer wall of the protective frame. The inner wall of the positioning block has a storage groove and a sliding groove. A locking block is slidably connected to the inner wall of the sliding groove. The end of the locking block away from the middle of the positioning block is elastically connected to the inner wall of the sliding groove by a spring. A pull rod is fixedly connected to the end of the locking block away from the middle of the positioning block. A limit rod is hinged to the end of the baffle near the marking head. A locking groove is formed on the side of the limit rod away from the air pressure block.

[0012] As a further description of the above technical solution:

[0013] The upper part of the protective frame is trapezoidal, the lower part is cuboid, and the side wall of the protective frame has a slot that communicates with the outside.

[0014] As a further description of the above technical solution:

[0015] The lower end of the card block near the center of the positioning block is provided with an inclined chamfer.

[0016] As a further description of the above technical solution:

[0017] The limiting rod and the baffle are magnetically connected by a magnet, and the edge of the baffle is rounded.

[0018] As a further description of the above technical solution:

[0019] When the upper surface of the limiting rod contacts the inner wall of the storage slot, the locking block and the slot are at the same height.

[0020] As a further description of the above technical solution:

[0021] The length of the limiting rod is the same as that of the spring when it is in its original length state, and the distance between the baffle and the inner wall of the storage slot near the protective frame is the same.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, by setting up a protective frame, mounting frame, air pressure block, piston plate, vent hole, baffle, slider, and spring, it is ensured that when an external object impacts the marking head, the impact force of the external object can be effectively buffered, and the baffle will not move back and forth afterward, thereby achieving the effect of preventing the marking head from deviating due to the impact of the external object and causing danger.

[0024] 2. In this utility model, by setting up positioning blocks, locking blocks, limiting rods, springs, pull grooves, etc., it is ensured that when the equipment is moved without being used, the baffle is not easy to move at will, thereby ensuring the stability of the equipment when the equipment is moved, and ensuring that the internal components of the equipment are not easily affected by frequent vibrations, thus ensuring their service life. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural diagram of the overall structure of this utility model;

[0026] Figure 2 This is a three-dimensional cross-sectional view of the marking head and protective mechanism in this utility model;

[0027] Figure 3 This is a three-dimensional cross-sectional view of the protective mechanism in this utility model;

[0028] Figure 4 This is a three-dimensional cross-sectional view of the protective frame and its external structure in this utility model;

[0029] Figure 5 In this utility model Figure 4 Enlarged schematic diagram of the three-dimensional structure of part A in the middle;

[0030] Figure 6 This is a three-dimensional cross-sectional diagram of the stable moving component in this utility model.

[0031] Figure 7 This is a three-dimensional cross-sectional view of the positioning block in this utility model.

[0032] Legend:

[0033] 1. Main unit; 2. Marking head; 3. Transmission line; 4. Protective mechanism; 41. Protective frame; 42. Mounting frame; 43. Air pressure block; 44. Piston plate; 45. Vent hole; 46. Connecting rod; 47. Baffle; 48. Buffer assembly; 481. Fixing plate; 482. Slider; 483. Connecting rod; 484. Spring 1; 49. Contact piece; 5. Stable moving assembly; 51. Positioning block; 52. Storage slot; 53. Slide groove; 54. Locking block; 55. Spring 2; 56. Pull rod; 57. Limiting rod; 58. Locking groove. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] Reference Figure 1 and Figure 2 The present invention provides an embodiment of a protective handheld laser marking machine, comprising a main unit 1 and a marking head 2. The main unit 1 is equipped with a battery that provides power to the device, and the battery is a rechargeable battery, which can ensure that the device can be used without a power source. The main unit 1 and the marking head 2 are connected by a transmission line 3.

[0036] Reference Figure 2 , Figure 3 and Figure 5 The lower part of the marking head 2 is equipped with a protective mechanism 4, which includes a protective frame 41. The upper part of the protective frame 41 is trapezoidal, and the lower part is rectangular. The protective frame 41 is hollow, and both its upper and lower ends are connected to the outside. The side wall of the protective frame 41 has a slot that connects to the outside, which ensures that the heat generated inside the protective frame 41 during use can dissipate. A contact piece 49 is fixedly connected to the lower surface of the protective frame 41. The lower surface of the contact piece 49 is used to contact the surface of the workpiece being marked. The bottom end of the contact piece 49 is provided with a rubber coating. The rubber coating ensures that the contact piece 49 is not easy to slide relative to the workpiece after contact. Because the rubber material has deformability, the contact piece 49 can better fit the surface of the workpiece. A mounting frame 42 is fixedly connected to the outer wall of the protective frame 41. The mounting frame 42 is a cuboid with an opening on one side. The side of the mounting frame 42 with the opening is fixed to the outer wall of the protective frame 41. A pressure block 43 is fixedly connected to the inner wall of the mounting frame 42. The pressure block 43 is hollow and filled with nitrogen. A piston plate 44 is piston-connected to the inner wall of the pressure block 43. The outer wall of the piston plate 44 is coated with rubber. A vent hole 45 is opened on the inner wall of the piston plate 44. The opening of the vent hole 45 near the marking head 2 is larger than the opening away from the marking head 2. A connecting rod 46 is fixedly connected to the end of the piston plate 44 away from the marking head 2. The connecting rod 46 does not pass through the axis of the piston plate 44. A baffle 47 is fixedly connected to the end of the connecting rod 46 away from the piston plate 44. The baffle 47 is used to block foreign objects that may hit the marking machine.

[0037] Reference Figures 2-4A buffer assembly 48 is provided on the side of the baffle 47 near the marking head 2 and inside the protective frame 41. The buffer assembly 48 includes a fixing plate 481. Two fixing plates 481 are provided inside each protective frame 41, and the two fixing plates 481 are symmetrically arranged with respect to the middle surface of the protective frame 41 in the vertical direction. The outer wall of the fixing plate 481 is fixedly connected to the inner wall of the mounting frame 42. A slider 482 is slidably connected to the inner wall of the mounting frame 42. The slider 482 slides vertically and moves away from the marking head. One end of the machine head 2 is hinged to a connecting rod 483. The initial state of the connecting rod 483 is tilted relative to the sliding direction of the slider 482. The end of the connecting rod 483 away from the slider 482 is hinged to the side of the baffle 47 near the marking machine head 2. The side of the slider 482 near the air pressure block 43 is elastically connected to the outer wall of the fixed plate 481 by a spring 484. One end of the spring 484 is fixedly connected to the side of the slider 482 near the air pressure block 43, and the other end of the spring 484 is fixedly connected to the outer wall of the fixed plate 481.

[0038] Reference Figures 5-7 A stabilizing moving component 5 is provided on the side of the baffle 47 near the marking head 2 and on the outside of the protective frame 41. The stabilizing moving component 5 is used to ensure that the baffle 47 does not easily shake when the equipment is moved during non-use. The stabilizing moving component 5 includes a positioning block 51. The outer wall of the positioning block 51 is fixedly connected to the outer wall of the protective frame 41. A storage groove 52 is opened on the inner wall of the positioning block 51. The side and bottom of the storage groove 52 away from the protective frame 41 are connected to the outside. A sliding groove 53 is opened on the inner wall of the positioning block 51. The sliding groove 53 is opened inside the side of the positioning block 51 away from the air pressure block 43. A locking block 54 is slidably connected to the inner wall of the sliding groove 53. The lower end of the locking block 54 near the middle of the positioning block 51 is provided with an inclined chamfer. The end of the locking block 54 away from the middle of the positioning block 51 is elastically connected to the inner wall of the sliding groove 53 by a second spring 55. One end of the second spring 55 is fixedly connected to the end of the locking block 54 away from the middle of the positioning block 51. The other end is fixedly connected to the inner wall of the slide 53. A pull rod 56 is fixedly connected to the end of the locking block 54 away from the middle of the positioning block 51. The pull rod 56 is located in the middle of the second spring 55. A limit rod 57 is hinged to the end of the baffle 47 near the marking head 2. The limit rod 57 and the baffle 47 are magnetically connected by a magnet. Magnets are provided inside both the limit rod 57 and the baffle 47. The magnet inside the baffle 47 has a magnetic pole on the side closest to the marking head 2, which is connected to the inside of the limit rod 57. When the magnet is in a horizontal state, the lower magnetic poles are opposite. The length of the limiting rod 57 is the same as that of the spring 484 when it is in its original length state. The distance between the baffle 47 and the inner wall of the storage slot 52 near the protective frame 41 is the same. When the upper surface of the limiting rod 57 contacts the inner wall of the storage slot 52, the locking block 54 is exactly at the same height as the locking groove 58. The limiting rod 57 has a locking groove 58 on the side away from the air pressure block 43. The width of the locking groove 58 matches the locking block 54.

[0039] Working principle: When in use, if an external object hits the marking head 2, the external object is more likely to hit the surface of the baffle 47 because the baffle 47 is outside the protective frame 41.

[0040] When the baffle 47 is impacted, it moves toward the direction of the protective frame 41.

[0041] At this time, the baffle 47 drives the slider 482 to move closer to the protective frame 41, which shortens the horizontal projection of the connecting rod 483 and increases the vertical projection of the connecting rod 483. Therefore, the connecting rod 483 drives the slider 482 to slide during the movement and compresses the spring 484. Since the sliding direction of the slider 482 is consistent with the pressure direction applied by the operator to the marking head 2, the marking head 2 is not easy to deviate.

[0042] At the same time, as the baffle 47 moves, it also drives the connecting rod 46 to move closer to the marking head 2, so that the connecting rod 46 pushes the piston plate 44. Since the nitrogen gas inside the air pressure block 43 can move from the side of the larger hole of the vent 45 to the side of the smaller hole when the piston plate 44 moves, the gas can move smoothly at this time.

[0043] When the foreign object leaves the baffle 47, the spring 484 drives the slider 482 to reset under the action of the elastic force. During the reset process of the slider 482, the baffle 47 needs to be reset through the connecting rod 483. Therefore, the baffle 47 drives the connecting rod 46 to reset during the reset process, thereby resetting the piston plate 44.

[0044] During the resetting process of piston plate 44, nitrogen gas needs to pass through the smaller hole side of vent hole 45. Therefore, the flow rate of nitrogen gas is limited by the size of the hole, which in turn limits the resetting speed of slider 482, thus ensuring that baffle 47 will not bounce back and forth during the resetting process and ensuring stable operation of the equipment.

[0045] When the marking operation is completed and the equipment needs to be moved, the staff rotates the limiting rod 57 so that the side of the limiting rod 57 away from the baffle 47 is inserted into the storage slot 52.

[0046] Since the limiting rod 57 rotates from bottom to top when it enters the storage slot 52, when the limiting rod 57 moves to enter the storage slot 52 but its upper surface fails to contact the inner wall of the storage slot 52, it can push the locking block 54 into the interior of the slide groove 53 by pushing the inclined surface at the bottom of the locking block 54.

[0047] When the upper surface of the limiting rod 57 contacts the inner wall of the storage slot 52, the locking block 54 is at the same height as the slot 58. Therefore, the locking block 54 enters the slot 58 under the elastic force of the spring 55, so that the side of the limiting rod 57 away from the baffle 47 is fixed by the positioning block 51. Since the positioning block 51 is fixed to the protective frame 41, the side of the limiting rod 57 away from the baffle 47 is fixed relative to the protective frame 41.

[0048] Since the limiting rod 57 is made of rigid material, and both ends of the limiting rod 57 are fixed to the baffle 47 and the protective frame 41 respectively, the baffle 47 cannot move relative to the protective frame 41 at this time. When the equipment is used again, pulling the lever 56 can release the limiting of the locking block 54 and the positioning block 51.

[0049] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A protective handheld laser marking machine, comprising a main unit (1) and a marking head (2), characterized in that: The host (1) and the marking head (2) are connected by a transmission line (3), and a protective mechanism (4) is provided at the lower part of the marking head (2). The protective mechanism (4) includes a protective frame (41), a contact piece (49) is fixedly connected to the lower surface of the protective frame (41), an installation frame (42) is fixedly connected to the outer wall of the protective frame (41), a pneumatic block (43) is fixedly connected to the inner wall of the installation frame (42), a piston plate (44) is piston-connected to the inner wall of the pneumatic block (43), a vent hole (45) is opened on the inner wall of the piston plate (44), a connecting rod (46) is fixedly connected to the end of the piston plate (44) away from the marking head (2), a baffle (47) is fixedly connected to the end of the connecting rod (46) away from the piston plate (44), a buffer component (48) is provided on the side of the baffle (47) near the marking head (2) and the inside of the protective frame (41), and a stable moving component (5) is provided on the side of the baffle (47) near the marking head (2) and the outside of the protective frame (41).

2. The protective handheld laser marking machine according to claim 1, characterized in that: The buffer assembly (48) includes a fixed plate (481), the outer wall of the fixed plate (481) is fixedly connected to the inner wall of the mounting frame (42), the inner wall of the mounting frame (42) is slidably connected to a slider (482), the end of the slider (482) away from the marking head (2) is hinged to a connecting rod (483), the end of the connecting rod (483) away from the slider (482) is hinged to the side of the baffle (47) near the marking head (2), and the side of the slider (482) near the air pressure block (43) is elastically connected to the outer wall of the fixed plate (481) by a spring (484).

3. The protective handheld laser marking machine according to claim 2, characterized in that: The stable moving component (5) includes a positioning block (51), the outer wall of the positioning block (51) is fixedly connected to the outer wall of the protective frame (41), the inner wall of the positioning block (51) is provided with a storage groove (52), the inner wall of the positioning block (51) is provided with a sliding groove (53), the inner wall of the sliding groove (53) is slidably connected with a locking block (54), the end of the locking block (54) away from the middle of the positioning block (51) is elastically connected to the inner wall of the sliding groove (53) by a spring (55), the end of the locking block (54) away from the middle of the positioning block (51) is fixedly connected with a pull rod (56), the end of the baffle (47) near the marking head (2) is hinged with a limit rod (57), the side of the limit rod (57) away from the air pressure block (43) is provided with a locking groove (58).

4. The protective handheld laser marking machine according to claim 1, characterized in that: The upper part of the protective frame (41) is shaped like a trapezoid, the lower part of the protective frame (41) is shaped like a cuboid, and the side wall of the protective frame (41) is provided with a slot that communicates with the outside.

5. The protective handheld laser marking machine according to claim 3, characterized in that: The lower end of the card block (54) near the middle of the positioning block (51) is provided with an inclined chamfer.

6. The protective handheld laser marking machine according to claim 3, characterized in that: The limiting rod (57) and the baffle (47) are magnetically connected by a magnet, and the edge of the baffle (47) is rounded.

7. The protective handheld laser marking machine according to claim 3, characterized in that: When the upper surface of the limiting rod (57) comes into contact with the inner wall of the storage groove (52), the card block (54) and the card groove (58) are at the same height.

8. The protective handheld laser marking machine according to claim 3, characterized in that: The length of the limiting rod (57) is the same as that of the spring (484) when the baffle (47) is in its original length state and the distance between the inner wall of the storage slot (52) and the side of the protective frame (41) is the same.

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