Precise and quick-adjustment linear laser and pendulum body combined structure applying same

Abstract

The utility model relates to an accurate speed-adjustable linear laser and a pendulum body combined structure using the same, the accurate speed-adjustable linear laser comprises a housing and a front end projection assembly, and the technical key points are that the rear end of the housing is internally provided with a laser diode concentric with the housing, and the front end of the housing is internally provided with a collimating mirror assembly; the front-end projection assembly comprises a shading cap fixed on the front end face of the shell and concentric with the shell, a cylindrical mirror arranged in the shading cap or a cylindrical spectroscope arranged on the outer side of the shading cap, and the collimating mirror assembly is composed of a first collimating mirror, a second collimating mirror and a pressing ring clamped between the first collimating mirror and the second collimating mirror, the first collimating mirror is close to the laser diode side, and the inner diameter of the pressing ring is larger than that of the shell. According to the utility model, the internal structure is simplified, so that the installation and debugging precision is improved, the production cost is saved, and the assembly difficulty is reduced.

Description

Technical Field

[0001] This utility model relates to the field of laser technology, specifically to a precision speed-adjustable single-line laser and a pendulum assembly structure using the same. Background Technology

[0002] The existing linear laser and pendulum setup and adjustment process is extremely cumbersome. Specifically, when installing the laser, its levelness needs to be manually adjusted using two screws on the cylindrical mirror. The operator repeatedly tightens and loosens the screws with a screwdriver while simultaneously using a level or other horizontal measuring instrument to observe the horizontal state of the laser line. This process requires multiple attempts to approach the ideal levelness, which is time-consuming and labor-intensive.

[0003] After the initial leveling of the laser is completed, the pendulum is installed. Due to the limited precision of the previous laser adjustment and the possibility of minor displacements during the installation process, fine-tuning of the pendulum is necessary to ensure that the laser line remains horizontal during rotation. This fine-tuning process requires the use of tools to make minute adjustments to the pendulum's position or angle, and continuous testing of the laser line's horizontality at different pendulum positions. This further increases the complexity and time cost of the debugging process. Utility Model Content

[0004] The purpose of this utility model is to provide a precise, fast-adjustable single-line laser with a reasonable structure and reliable operation that solves the above-mentioned problems, as well as a pendulum assembly structure using it. By simplifying the internal structure, it improves the installation and debugging accuracy, saves production costs, reduces assembly difficulty, and reduces the overall scrap rate.

[0005] The technical solution of this utility model is:

[0006] A precision speed-adjustable linear laser includes a housing and a front-end projection assembly. The key technical features are: a laser diode concentrically mounted at the rear end of the housing; a collimating lens assembly at the front end of the housing; a light-shielding cap fixed to and concentric with the front end of the housing; a cylindrical mirror inside the light-shielding cap or a cylindrical beam splitter outside the light-shielding cap; and a collimating lens assembly consisting of a first collimating lens and a second collimating lens riveted together, and a retaining ring sandwiched between the first and second collimating lenses. The first collimating lens is closer to the laser diode, and the inner diameter of the retaining ring is larger than the inner diameter of the housing.

[0007] In the aforementioned precision speed-adjustable linear laser, the light-emitting edge of the cylindrical mirror is in contact with the inner top surface of the light-shielding cap, and an annular pressure cap is clamped between the light-incident edge of the cylindrical mirror and the collimating lens assembly. The second collimating lens is adjacent to the annular pressure cap, and the rear end face of the annular pressure cap is connected to the outer edge non-working area of ​​the second collimating lens.

[0008] In the aforementioned precision speed-adjusting linear laser, the outer end face of the light-shielding cap is provided with a linear horizontal groove, the cylindrical beam splitter is positioned in the linear horizontal groove and its center line is in the same plane as the center line of the light-shielding cap, and the rear end face of the light-shielding cap is connected to the non-working area of ​​the outer edge of the second collimating lens.

[0009] In the aforementioned precision speed-adjusting single-line laser, the first collimating lens is a plano-concave mirror convex to the laser diode, and the second collimating lens is a plano-convex mirror convex to the cylindrical mirror.

[0010] In the aforementioned precision speed-adjusting single-line laser, the front and rear ends of the housing are respectively provided with a front expansion hole and a rear expansion hole concentric with it. The laser diode is fixed in the rear expansion hole, and the collimating lens assembly is clamped between the annular pressure cap and the bottom of the front expansion hole.

[0011] The aforementioned precision speed-adjusting single-line laser has a tubular outer shell with an expansion and limiting stage for installation at its front end.

[0012] The above-described precision speed-adjustable linear laser assembly structure includes a pendulum body. The key technical features are: the pendulum body has mounting holes corresponding to the linear laser, the outer shell of the linear laser is inserted into the mounting holes and fixed, and the front projection component of the linear laser is exposed outside the mounting holes.

[0013] The above-described pendulum assembly structure has five mounting holes, including four upper holes on the upper part of the outer wall of the pendulum body and one lower hole on the lower part of the outer wall of the pendulum body. The four upper holes are evenly arranged around the center line of the pendulum body, and the angle between the center line of the upper hole and the center line of the pendulum body is 50°. The center line of the lower hole is perpendicular to the center line of the pendulum body.

[0014] The beneficial effects of this utility model are:

[0015] 1. The light-shielding cap positions the riveted collimating lens assembly at the front end of the housing. Then, the light-shielding cap, mirror, and ring-shaped pressure cap are positioned, or the light-shielding cap and cylindrical beam splitter are positioned. Compared to traditional laser modules, this simplifies some installation structures, eliminating the need for fogging mirrors, bare crystals, double concave mirrors, double lens brackets, screws, and nuts. The structure is simple and stable, ensuring the stability of the optical system, improving installation and debugging accuracy, reducing assembly difficulty, and improving the coaxiality of the laser beam, thereby improving beam accuracy. Compared with existing technologies, the horizontal accuracy of the laser line can be improved by more than 80%. At the same time, it greatly shortens the laser debugging time and saves production costs.

[0016] 2. Because the linear laser improves the installation and debugging accuracy, it ensures the high level of the laser line before it is installed into the pendulum body, eliminating the need for re-adjustment after installation with the pendulum body. This reduces the difficulty of assembly and debugging with the pendulum body, lowers the complexity of debugging, saves time and effort, and shortens the overall debugging time by more than 70% compared with existing technologies, significantly improving the production and assembly efficiency of the equipment. Attached Figure Description

[0017] Figure 1 This is an external schematic diagram of the pendulum assembly structure described in this utility model (corresponding to Embodiment 1).

[0018] Figure 2 This is a cross-sectional view of the pendulum assembly structure described in this utility model (corresponding to Embodiment 1).

[0019] Figure 3 This is an exploded axial cross-sectional view of the laser described in this utility model (corresponding to Embodiment 1).

[0020] Figure 4 This is an exploded view of the laser described in this utility model (corresponding to Embodiment 1).

[0021] Figure 5 This is a schematic diagram of the laser structure described in this utility model (corresponding to Embodiment 2);

[0022] Figure 6 This is an axial cross-sectional view of the laser described in this utility model (corresponding to Embodiment 2);

[0023] Figure 7 This is an exploded view of the laser described in this utility model (corresponding to Embodiment 2).

[0024] In the figure: 1. Pendulum body, 101. Upper hole, 102. Lower hole; 2. Linear laser, 201. Light shield, 201a. Radial hole, 201b. Light outlet hole, 201c. Linear horizontal groove, 202. Cylindrical mirror, 203. Ring pressure cap, 204. Second collimating mirror, 205. First collimating mirror, 206. Laser diode, 207. Outer shell, 207a. Diameter expansion limiting stage, 207b. Front diameter expansion hole, 207c. Rear diameter expansion hole, 208. Pressure ring, 209. Cylindrical beam splitter. Detailed Implementation

[0025] The present invention will be described in detail with reference to the accompanying drawings. Example

[0026] like Figure 1 , Figure 2As shown, the pendulum assembly structure includes a pendulum body 1, which has mounting holes for a corresponding precision speed-adjustable linear laser 2. The housing 207 of the linear laser 2 is inserted into the mounting holes and fixed, and the front projection component of the linear laser 2 is exposed outside the mounting holes.

[0027] In this embodiment, the number of mounting holes is five, including four upper holes 101 located on the upper part of the outer wall of the pendulum body 1 and one lower hole 102 located on the lower part of the outer wall of the pendulum body 1. The four upper holes 101 are evenly arranged around the center line of the pendulum body 1. The center line of the upper holes 101 is 50° to the center line of the pendulum body 1, and the center line of the lower hole 102 is perpendicular to the center line of the pendulum body 1.

[0028] See Figures 1-4 This precision-speed-adjustable linear laser includes a housing 207 and a front-end projection assembly. The housing 207 has a laser diode 206 concentrically mounted at its rear end, and a collimating lens assembly at its front end. The front-end projection assembly includes a light-shielding cap 201 fixed to and concentric with the front surface of the housing 207, and a cylindrical mirror 202 disposed within the light-shielding cap 201. The light-emitting edge of the cylindrical mirror 202 is in contact with the inner top surface of the light-shielding cap 201, and an annular pressure cap 203 is clamped between the light-incident edge of the cylindrical mirror 202 and the collimating lens assembly.

[0029] In this embodiment, the top surface of the light-shielding cap 201 is provided with a light-emitting hole 201b corresponding to the light-emitting side of the cylindrical mirror 202, and the outer peripheral surface of the light-shielding cap 201 is symmetrically provided with U-shaped vent holes 201a communicating with the outside. The front and rear end faces of the outer shell 207 are respectively provided with a front expansion hole 207b and a rear expansion hole 207c concentric with it. The laser diode 206 is fixed in the rear expansion hole 207c, and the collimating lens assembly is clamped between the annular pressure cap 203 and the bottom of the front expansion hole 207b. The collimating lens assembly consists of a first collimating lens 205 and a second collimating lens 204 riveted together, and a pressure ring 208 clamped between the first collimating lens 205 and the second collimating lens 204. The first collimating lens 205 is located near the laser diode side, and the second collimating lens 204 is adjacent to the annular pressure cap 203. The rear end face of the annular pressure cap 203 is in contact with the non-working area of ​​the outer edge of the second collimating lens 204. The inner diameter of the pressure ring 208 is larger than the inner diameter of the outer shell 207. The first collimating lens 205 is a plano-concave mirror convex to the laser diode 206, and the second collimating lens 204 is a plano-convex mirror convex to the cylindrical mirror 202.

[0030] The outer shell 207 is a tubular component with an expansion-diameter limiting platform 207a at its front end. The light-shielding cap 201 is fixed to the front end face of the expansion-diameter limiting platform 207a. During assembly, the expansion-diameter limiting platform 207a contacts the outer wall of the pendulum body 1 to achieve the installation limiting function.

[0031] Working principle:

[0032] The laser diode 206 is located at one end of the housing 207. After generating laser light, the light passes through the plano-concave mirror, the pressure ring 208, the plano-convex mirror, the annular pressure cap 203, and the cylindrical mirror 202 in sequence, and finally exits through the light-shielding cap 201.

[0033] The plano-concave mirror is used to adjust the laser's optical path, while the plano-convex mirror is used for optical processing such as focusing or collimation. The retaining ring 208 further secures the optical components. The annular retaining cap 203 secures the plano-convex and plano-concave mirrors, ensuring their stable position. The cylindrical mirror 202 shapes the laser beam to form the desired straight laser beam. The light-shielding cap 201 prevents stray light interference, ensuring the laser's directionality and purity.

[0034] When the linear laser 2 is combined with the pendulum body 1, the linear laser 2 emits a linear laser beam when the pendulum body 1 rotates, and can move in space in a predetermined manner to achieve working functions such as measurement and marking. Example

[0035] like Figures 5-7 As shown, this precision-speed-adjustable linear laser includes a housing 207 and a front-end projection assembly. The housing 207 has a laser diode 206 concentrically mounted at its rear end, and a collimating lens assembly at its front end. The front-end projection assembly includes a light-shielding cap 201 fixed to and concentric with the front surface of the housing 207, and a cylindrical beam splitter 209 located outside the light-shielding cap 201. The outer end face of the light-shielding cap 201 has a linear groove 201c. The cylindrical beam splitter 209 is positioned within the linear groove 201c, and its centerline is in the same plane as the centerline of the light-shielding cap 201. The rear end face of the light-shielding cap 201 is connected to the non-working area of ​​the outer edge of the second collimating lens 204.

[0036] Everything else is the same as in Example 1.

[0037] The embodiments of this utility model have been described in detail above, but the content described is only a preferred embodiment of this utility model and should not be considered as limiting the scope of implementation of this utility model. All equivalent changes and improvements made within the scope of this utility model should still fall within the scope of this patent.

Claims

1. A precision speed-adjustable single-line laser, comprising a housing and a front-end projection assembly, characterized in that: The rear end of the housing has a laser diode built in concentric with it, and the front end of the housing has a collimating lens assembly built in. The front projection assembly includes a light-shielding cap fixed to the front end face of the housing and concentric with it, a cylindrical mirror disposed inside the light-shielding cap or a cylindrical beam splitter disposed outside the light-shielding cap. The collimating lens assembly consists of a first collimating lens and a second collimating lens riveted together, and a retaining ring sandwiched between the first collimating lens and the second collimating lens. The first collimating lens is closer to the laser diode side, and the inner diameter of the retaining ring is larger than the inner diameter of the housing.

2. The precision-speed-adjustable single-line laser according to claim 1, characterized in that: The light-emitting edge of the cylindrical lens is in contact with the inner top surface of the light-shielding cap, and an annular pressure cap is clamped between the light-incident edge of the cylindrical lens and the collimating lens assembly. The second collimating lens is adjacent to the annular pressure cap, and the rear end face of the annular pressure cap is connected to the outer edge non-working area of ​​the second collimating lens.

3. The precision-speed-adjustable single-line laser according to claim 1, characterized in that: The outer end face of the light-shielding cap is provided with a horizontal groove in the shape of a straight line. The cylindrical beam splitter is positioned in the horizontal groove in the shape of a straight line and its center line is in the same plane as the center line of the light-shielding cap. The rear end face of the light-shielding cap is connected to the non-working area of ​​the outer edge of the second collimating lens.

4. The precision-speed-adjustable single-line laser according to claim 1, characterized in that: The first collimating lens is a plano-concave mirror convex to the laser diode, and the second collimating lens is a plano-convex mirror convex to the cylindrical mirror.

5. The precision-speed-adjustable single-line laser according to claim 1, characterized in that: The front and rear end faces of the housing are respectively provided with a front expansion hole and a rear expansion hole concentric with it. The laser diode is fixed in the rear expansion hole, and the collimating lens assembly is clamped between the annular pressure cap and the bottom of the front expansion hole.

6. The precision-speed-adjustable single-line laser according to claim 1, characterized in that: The outer shell is a tubular component and its front end is provided with an expansion and limiting platform for installation.

7. A pendulum assembly structure using the precision speed-adjusting linear laser as described in claim 1, comprising a pendulum body, characterized in that: The pendulum body is provided with mounting holes corresponding to the line laser. The outer shell of the line laser is inserted into the mounting holes and fixed. The front projection component of the line laser is exposed outside the mounting holes.

8. The pendulum assembly structure according to claim 7, characterized in that: The number of mounting holes is five, including four upper holes on the upper part of the outer wall of the pendulum body and one lower hole on the lower part of the outer wall of the pendulum body. The four upper holes are evenly arranged around the center line of the pendulum body. The angle between the center line of the upper hole and the center line of the pendulum body is 50°. The center line of the lower hole is perpendicular to the center line of the pendulum body.

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