Hand-held laser equipment handle focus fixing frame light supplementing device

Abstract

The utility model provides a light supplementing device for a handle focus fixing frame of handheld laser equipment. The light supplementing device comprises an annular circuit board, an LED lamp, an adjusting resistor, a photoresistor, a bridging terminal P1, a bridging terminal P2 and a bridging terminal P3. The annular circuit board is provided with an LED lamp, an adjusting resistor, a photoresistor, a bridging terminal P1, a bridging terminal P2 and a bridging terminal P3; the LED lamp, the adjusting resistor and the photoresistor form a brightness adjusting circuit; the adjusting resistor manually calibrates the circuit voltage; the photoresistor can change the resistance value according to the surrounding brightness so as to automatically adjust the brightness. Compared with the prior art, the utility model has the following beneficial effects: on one hand, the light supplementing device is installed at one side of the exhaust fan to supplement light for a marking area without influencing the smoke discharge of the exhaust fan, so that the marking process can be more intuitively felt, and the use experience and the operation flexibility of an operator are improved; and on the other hand, wire harnesses around the field lens are integrated into the field lens, so that the safety is enhanced, and the aesthetic property of the equipment is improved.

Description

Technical Field

[0001] The utility model relates to a light-filling device for a fixed-focus frame of a handle of a handheld laser device, belonging to the technical field of lasers. Background Art

[0002] A handheld laser marking machine is a highly precise, flexible, and environmentally friendly device that uses a laser beam to mark, engrave, or imprint surfaces. It works by creating a permanent mark through the interaction of the laser with the surface, such as ablation, melting, or evaporation. Compared to traditional mechanical marking, laser marking is non-contact, wear-free, and does not damage the surface.

[0003] Key features of handheld laser marking machines include portability, high precision, flexibility, and environmental friendliness. Their compact design allows operators to easily carry them and mark even irregular surfaces or hard-to-reach areas. Furthermore, handheld laser marking machines are capable of producing precise markings on a wide range of materials, including metal, plastic, ceramic, and glass, meeting a wide range of industrial needs. Because they require no chemicals and the marking process is pollution-free, they are considered a green and environmentally friendly marking technology.

[0004] Handheld laser marking machines are widely used in metal processing, electronics, auto parts, medical devices, handicrafts, and other fields. They can mark serial numbers, QR codes, company logos, and other information, and are widely used for anti-counterfeiting, traceability, and customized marking.

[0005] Currently, handheld laser marking machines primarily consist of a chassis and a handle. The handle is primarily composed of a marking head bracket, a focus bracket, a field lens, and an exhaust fan. The focus bracket comes in various forms, and this is just one of them. The focus bracket is fixed to the bottom of the marking head bracket, and the field lens is fixed to the field lens hole below the marking head bracket.

[0006] During the laser marking process, the interior of the focus hood is insufficiently illuminated. In the dim working environment, it's difficult for the operator to fully observe the marking pattern, understand the marking progress, and provide an intuitive user experience. Furthermore, the exhaust fan power cord and the focus hood safety wires are scattered around the field lens. In some cases, the laser can burn the wires, preventing the laser from emitting light. Summary of the Invention

[0007] In response to the shortcomings of the existing technology, the utility model provides a fixed-focus fill light device for the handle of a handheld laser equipment. On the one hand, it is installed on one side of the exhaust fan to fill light for the marking area without affecting the exhaust fan's smoke exhaust, which can more intuitively feel the marking process and increase the operator's usage experience and operational flexibility; on the other hand, the wiring harness around the field lens is integrated into the interior of the utility model, which not only enhances safety but also increases the aesthetics of the equipment.

[0008] In order to test the above purpose, the present invention is achieved through the following technical solutions:

[0009] A light-filling device for a fixed-focus frame on a handheld laser handle includes a ring-shaped circuit board, an LED light, an adjustment resistor, a photoresistor, jumper terminals P1, P2, and P3. The ring-shaped circuit board is mounted with the LED light, adjustment resistor, photoresistor, jumper terminals P1, P2, and P3.

[0010] The LED lamp, the regulating resistor and the photoresistor form a brightness regulating circuit; the regulating resistor is used to manually calibrate the circuit voltage; the photoresistor can change its resistance value according to the surrounding brightness and thus automatically adjust the brightness.

[0011] The LED lamp is connected in series with a current-limiting resistor to prevent it from burning out.

[0012] The jumper terminal P1 is connected to the exhaust fan power supply line and the fixed focus frame safety protection line provided by the handheld laser marking machine, the jumper terminal P2 is used to supply power to the exhaust fan, and the jumper terminal P3 is connected to the limit switch.

[0013] The annular circuit board is fixed to one side of the exhaust fan through a limiting hole.

[0014] Beneficial effects of the utility model:

[0015] The utility model reduces the distribution of wire harnesses around the field mirror and improves operational safety.

[0016] The utility model allows the operator to intuitively observe the marking process in an environment with insufficient light, thereby increasing the operator's usage experience and operational flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a light adjustment circuit.

[0018] Figure 2 Jumper terminal P1.

[0019] Figure 3 It is a jumper terminal P2.

[0020] Figure 4 It is a jumper terminal P3.

[0021] Figure 5 It is a ring-shaped circuit board. DETAILED DESCRIPTION

[0022] The present invention will be further described in detail below with reference to the accompanying drawings:

[0023] The utility model provides a light-filling device for a fixed-focus frame of a handheld laser device handle, comprising a ring-shaped circuit board, an LED lamp, an adjustment resistor, a photoresistor, a jumper terminal P1, a jumper terminal P2, and a jumper terminal P3. The ring-shaped circuit board is mounted with the LED lamp, the adjustment resistor, the photoresistor, the jumper terminal P1, the jumper terminal P2, and the jumper terminal P3.

[0024] As attached Figure 1 As shown, the LED lamp, the adjustment resistor, and the photoresistor form a brightness adjustment circuit; the adjustment resistor manually calibrates the circuit voltage; the photoresistor can change its resistance according to the surrounding brightness and thus automatically adjust the brightness.

[0025] The LED lamp is connected in series with a current-limiting resistor to prevent it from burning out.

[0026] Refer to the attached Figure 2-4 The jumper terminal P1 connects the fan power supply line provided by the handheld laser marking machine and the fixed focus frame safety protection line, the jumper terminal P2 supplies power to the exhaust fan, and the jumper terminal P3 connects the limit switch.

[0027] Refer to the attached Figure 5 The annular circuit board is fixed to one side of the exhaust fan through a limiting hole.

[0028] Furthermore, the specific implementation of the present invention is described in detail with reference to the accompanying drawings.

[0029] Furthermore, the voltage across the LED lamp is adjusted by manually rotating the adjustment resistor.

[0030] Furthermore, the jumper terminal P1 is connected to the exhaust fan lead wire and the fixed focus frame safety protection wire in the marking machine handle, the jumper terminal P2 is connected to the exhaust fan power wire, and the jumper terminal P3 is connected to the limit switch.

[0031] Furthermore, on the annular circuit board, the jumper terminal P1 is connected to the jumper terminal P2 , and the jumper terminal P1 is connected to the jumper terminal P3 .

[0032] Furthermore, during the marking process, in a bright environment, the resistance of the photoresistor decreases, the voltage at both ends decreases, and the brightness of the LED lamp decreases. In smoke or dark conditions, the resistance of the photoresistor increases, the voltage at both ends increases, and the brightness of the LED lamp increases, thereby achieving self-adjustment of brightness.

[0033] Furthermore, in order not to affect the performance of the exhaust fan, the design size of the annular circuit board can be changed according to the exhaust fan, while ensuring its concealment, and the outer contour of the annular circuit board is consistent with the contour of the exhaust fan.

[0034] Although this specification is described according to implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A light-filling device for a fixed-focus frame on a handle of a handheld laser device, characterized in that: The device comprises a ring-shaped circuit board, an LED lamp, an adjustment resistor, a photoresistor, a jumper terminal P1, a jumper terminal P2, and a jumper terminal P3; the ring-shaped circuit board is mounted with the LED lamp, the adjustment resistor, the photoresistor, the jumper terminal P1, the jumper terminal P2, and the jumper terminal P3; the LED lamp, the adjustment resistor, and the photoresistor form a brightness adjustment circuit; the adjustment resistor is used to manually calibrate the circuit voltage; the photoresistor changes its resistance according to the surrounding brightness and thus automatically adjusts the brightness; the LED lamp is connected in series with a current-limiting resistor to prevent it from burning out; the jumper terminal P1 is connected to the exhaust fan power supply line and the fixed focus frame safety protection line, the jumper terminal P2 supplies power to the exhaust fan, and the jumper terminal P3 is connected to a limit switch.

Images