A laser drilling positioning device

Abstract

The utility model discloses a kind of laser drilling positioning devices, it is related to laser processing equipment technical field, including workbench, adsorption platform and adjusting mechanism. Adsorption platform is connected perpendicularly with workbench by sliding pair, its top is equipped with clamp unit and the adsorption hole of intercommunication vacuum generator;Adjusting mechanism is located at the bottom of workbench, and its core is in the adjusting unit of gear, rack and rotating handle, and precise linear lifting of adsorption platform is converted by gear rack engagement into rotary motion;The device is also provided with positioning unit, for locking gear position after height adjustment is completed, so that the set height of adsorption platform can be reliably maintained, guarantee the positioning accuracy and stability of laser drilling.The utility model is cooperated with the coordinated transmission guide of gear, rack and slider, slide rail, realizes the precision vertical lifting of workbench, and realizes the mechanical self-lock of position after lifting by using ratchet wheel, pawl mechanism, solve the problem that fixed workbench cannot fine tune the height of workpiece.

Description

Technical Field

[0001] This utility model relates to the field of laser processing equipment technology, and in particular to a laser drilling positioning device. Background Technology

[0002] Laser drilling technology, due to its high precision, high efficiency, and non-contact characteristics, is widely used in precision hole processing in aerospace, electronics manufacturing, and medical devices. Accurate workpiece positioning is one of the key factors in ensuring hole accuracy during laser drilling.

[0003] In existing technologies, laser drilling equipment typically uses a fixed worktable or a simple manually adjustable platform to clamp the workpiece. Fixed worktables cannot fine-tune the workpiece height, and the dust generated during the drilling process can also affect drilling accuracy. Utility Model Content

[0004] The main purpose of this utility model is to provide a laser drilling positioning device, which achieves precise vertical lifting of the worktable through the coordinated transmission and guidance of gears, racks and pinions, sliders and slide rails, and realizes mechanical self-locking of the position after lifting by using ratchet and pawl mechanism, which can effectively solve the problems in the background technology.

[0005] To achieve the above objectives, this utility model provides a laser drilling positioning device, including a worktable, an adjustment mechanism, an adjustment unit, and a positioning unit; An adsorption platform slides vertically on the worktable. A clamping unit for fixing the workpiece is connected to the top of the adsorption platform. An array of adsorption holes is opened on the side of the adsorption platform near the clamping unit. A vacuum generator that provides negative pressure to the adsorption holes is also connected to the adsorption platform. The adjustment mechanism includes a mounting plate, a limiting slide rail, an adjustment unit, and a positioning unit. The mounting plate and the limiting slide rail are fixedly connected to the bottom of the worktable. The adjustment unit includes a gear, a rack, and a rotating handle. The rack is fixedly connected to the bottom of the adsorption platform. The gear meshes with the rack and is rotatably mounted on the mounting plate. The rotating handle is coaxially connected to the gear. One end of the rack extends outward and is connected to a slider, which slides in cooperation with the limiting slide rail. The positioning unit is used to lock the rotational position of the gear.

[0006] Based on the above technical solution, the present invention can be further improved as follows.

[0007] Furthermore, the positioning unit includes a ratchet and a pawl. The ratchet is coaxially connected to the gear, and the pawl is rotatably mounted on the mounting plate and meshes with the ratchet. A torsion spring is provided between the pawl and the mounting plate to keep the pawl always meshing with the ratchet.

[0008] Furthermore, one side of the pawl has a wrench protruding outward to release the ratchet from engagement with the pawl.

[0009] The beneficial effects of this utility model are as follows: This utility model provides a laser drilling positioning device, which has the following advantages: 1. This utility model achieves vertical lifting and smooth, deflection-free movement of the worktable by combining gear and rack main transmission with slider and slide rail auxiliary guidance.

[0010] 2. This utility model uses a ratchet and pawl mechanism as the positioning unit, which can achieve pure mechanical self-locking after adjustment. This locking method is firm and reliable, and can effectively resist the vibration of the equipment during operation and the gravity of the workpiece itself. It completely prevents the adsorption table from sinking or shifting unexpectedly during processing, and ensures the height consistency of each hole position during batch processing.

[0011] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it according to the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. The specific implementation methods of this utility model are given in detail in the following embodiments and their accompanying drawings. Attached Figure Description

[0012] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of a laser drilling and positioning device proposed in this utility model.

[0013] Figure 2 This is a schematic diagram of the adjustment unit in a laser drilling positioning device proposed in this utility model.

[0014] Figure 3 This is a schematic diagram of the positioning unit in a laser drilling positioning device proposed in this utility model.

[0015] In the diagram: 1. Workbench; 2. Adsorption table; 3. Fixture unit; 4. Adsorption hole; 5. Vacuum generator; 6. Adjustment mechanism; 7. Mounting plate; 8. Limit slide rail; 9. Adjustment unit; 10. Positioning unit; 11. Gear; 12. Rack; 13. Rotating handle; 14. Slider; 15. Ratchet; 16. Pawl; 17. Torsion spring; 18. Wrench. Detailed Implementation

[0016] The following is in conjunction with the appendix Figure 1-3 The principles and features of this utility model are described below. The examples given are for illustrative purposes only and are not intended to limit the scope of this utility model. The utility model is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of this utility model will become clearer from the following description and claims. It should be noted that the drawings are in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model.

[0017] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is described as "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is described as "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0018] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0019] like Figure 1-3 As shown, this utility model provides a laser drilling positioning device, including a worktable 1, an adjustment mechanism 6, an adjustment unit 9, and a positioning unit 10; An adsorption platform 2 slides vertically on the worktable 1. The adsorption platform 2 is connected to the vertical guide groove on the worktable 1 by a guide block to form a sliding pair, so that the adsorption platform 2 can move strictly in the vertical direction. The top of the adsorption platform 2 is connected to a clamping unit 3 for fixing the workpiece and for clamping the workpiece. An array of adsorption holes 4 are opened on the side of the adsorption platform 2 near the clamping unit 3. A vacuum generator 5 is also connected to the adsorption platform 2 to provide negative pressure to the adsorption holes 4. The smoke and dust generated during the laser drilling process are adsorbed by the adsorption platform 2, thereby avoiding the smoke and dust generated during the drilling process from affecting the drilling accuracy. The adjustment mechanism 6 includes a mounting plate 7, a limiting slide rail 8, an adjustment unit 9, and a positioning unit 10. The mounting plate 7 and the limiting slide rail 8 are fixedly connected to the bottom of the workbench 1. The adjustment unit 9 includes a gear 11, a rack 12, and a rotating handle 13. The rack 12 is fixedly connected to the bottom of the adsorption platform 2. The gear 11 meshes with the rack 12 and is rotatably mounted on the mounting plate 7. The rotating handle 13 is coaxially connected to the gear 11. One end of the rack 12 extends outward and is connected to a slider 14. The slider 14 is slidably engaged with the limiting slide rail 8. The positioning unit 10 is used to lock the rotational position of the gear 11. The positioning unit 10 includes a ratchet 15 and a pawl 16. The ratchet 15 is coaxially connected to the gear 11. The pawl 16 is rotatably mounted on the mounting plate 7 and meshes with the ratchet 15. A torsion spring 17 is provided between the pawl 16 and the mounting plate 7 to keep the pawl 16 always meshing with the ratchet 15. A wrench 18 protrudes outward on one side of the pawl 16 to release the ratchet 15 from meshing with the pawl 16. During operation, the workpiece to be processed is placed in the clamping unit 3 and clamped. The rotational motion of the rotating handle 13 is transmitted to the meshing rack 12 through the coaxially connected gear 11. Since the rack 12 is fixedly connected to the bottom of the adsorption table 2, the linear motion of the rack directly drives the adsorption table 2, the clamping unit 3 on its top, and the workpiece to rise or fall precisely along the vertical guide rail on the worktable 1. During this process, the slider 14 connected to one end of the rack 12 slides within the fixed limit rail 8, ensuring that the entire lifting process is smooth and without deflection. When the handle 13 is rotated in the direction of raising the workpiece, the ratchet 15, which is coaxial with the gear 11, rotates synchronously. Under the continuous pressure of the torsion spring 17, the tip of the pawl 16 will slide over the back of the teeth of the ratchet 15 and pass smoothly. When the handle 13 stops rotating, any tendency that causes the gear 11 to rotate in the opposite direction will cause the pawl 16 to immediately engage in the tooth groove of the ratchet 15 under the action of the torsion spring 17, forming a mechanical self-lock, thereby effectively preventing the adsorption table 2 from falling and firmly locking the height position. When it is necessary to lower the workpiece, the operator moves the wrench 18 on the pawl 16 by hand. Moving the wrench 18 makes the pawl 16 overcome the elastic force of the torsion spring 17, causing its tip to disengage from the ratchet 15 and release the self-lock. At this time, the handle 13 can be rotated in the opposite direction to safely lower the adsorption table 2.

[0020] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or equivalent variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are considered equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. A laser drilling positioning device, characterized in that, include: A workbench (1) has an adsorption table (2) that slides vertically on the workbench (1). A clamping unit (3) for fixing the workpiece is connected to the top of the adsorption table (2). An array of adsorption holes (4) are opened on the side of the adsorption table (2) near the clamping unit (3). A vacuum generator (5) that provides negative pressure to the adsorption holes (4) is also connected to the adsorption table (2). Adjustment mechanism (6), the adjustment mechanism (6) includes mounting plate (7), limit slide rail (8), adjustment unit (9) and positioning unit (10), the mounting plate (7) and limit slide rail (8) are fixedly connected to the bottom of the workbench (1); Adjustment unit (9), the adjustment unit (9) includes gear (11), rack (12) and rotating handle (13), the rack (12) is fixedly connected to the bottom of the adsorption table (2), the gear (11) meshes with the rack (12) and the gear (11) is rotatably mounted on the mounting plate (7), the rotating handle (13) is coaxially connected to the gear (11), one end of the rack (12) extends outward and is connected to a slider (14), the slider (14) slides with the limiting slide rail (8); Positioning unit (10) is used to lock the rotational position of the gear (11).

2. The laser drilling positioning device according to claim 1, characterized in that, The positioning unit (10) includes a ratchet (15) and a pawl (16). The ratchet (15) is coaxially connected to the gear (11). The pawl (16) is rotatably mounted on the mounting plate (7) and meshes with the ratchet (15). A torsion spring (17) is provided between the pawl (16) and the mounting plate (7) to keep the pawl (16) always meshing with the ratchet (15).

3. The laser drilling positioning device according to claim 2, characterized in that, The pawl (16) has a wrench (18) protruding outward on one side to release the ratchet (15) from engagement with the pawl (16).

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