Manual and automatic integrated field lens focusing device
The automatic and manual focusing device for field lenses utilizes a lead screw and bevel gear transmission to achieve automatic and manual fine-tuning of the lifting platform. This solves the problems of cumbersome operation and insufficient precision of existing devices, improves the accuracy of focusing and the stability of equipment operation, and prevents wire tangling.
Patent Information
- Application Number
- CN202520475004.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-18
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-03-18
AI Technical Summary
Existing field lens focusing devices are cumbersome to operate and lack precision. They are particularly difficult to adjust the focal length quickly and accurately when dealing with materials of different thicknesses. Furthermore, the wiring is prone to tangling, which affects the stability of equipment operation and product quality.
The field lens focusing device adopts a manual/automatic integrated design. The lifting block is driven to slide through the lead screw device, and the lifting platform can be automatically and manually finely adjusted by bevel gear transmission. The hinged connecting plate and the stop bar limit the circuit to prevent entanglement.
It improves the accuracy and stability of focusing, prevents wire tangling, ensures smooth equipment operation, and enhances the stability and accuracy of marking results.
Smart Images

Figure CN223863033U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to laser marking technical field, concretely is a hand -of -machine integrated field lens focusing device. BACKGROUND
[0002] As a kind of efficient, accurate processing means, laser marking technology is widely used in electronic, machinery, medical, jewelry and many other industries, with the development of industrial automation and intelligent, the requirement of laser marking equipment to precision, efficiency and operation convenience is higher and higher, field lens focusing as the key link in laser marking equipment, directly influence the fineness and stability of marking effect, however, the existing field lens focusing technology has the problems, such as complicated operation, insufficient precision, it is difficult to meet the growing demand for high-precision processing.
[0003] The field lens focusing device on the market at present is mainly divided into manual and electric two ways, manual focusing relies on user experience, and operation steps are complex and precision is difficult to guarantee;Electric focusing, although it simplifies the operation to some extent, still has the problems, such as precision limitation, poor adaptability, especially when facing different material thickness, traditional focusing mode is difficult to quickly and accurately adjust focal length, leading to unstable marking effect, affecting product quality, at the same time, unorganized electric wire in lifting process is easy to be intertwined in lifting process, form complex knot, which not only will affect the normal operation of equipment, but also can lead to lifting action not smooth even jam. UTILITARY MODEL CONTENT
[0004] To achieve the above object, the utility model provides the following technical scheme: a hand -of -machine integrated field lens focusing device, including base, backboard is installed on base, one side of backboard is formed with two groups of opposite groove plate, and two groups of lifting slot are opened, lifting block is slidably arranged in groove plate, dual-purpose lifting assembly is installed in one of groove plate and drives corresponding lifting block to lift, mounting plate is fixed between two lifting blocks, laser source is installed on mounting plate, part of lifting block is located in lifting slot and is fixed with lifting platform;
[0005] Dual-purpose lifting assembly includes screw device installed in one of groove plate, and the screw rod of screw device penetrates into corresponding lifting block, bearing mounting seat is installed on one side of groove plate, rotating shaft is rotatably connected in bearing mounting seat, and bevel gears that are mutually engaged are fixed on rotating shaft and screw rod.
[0006] Further, the backboard is rotatably connected with a V-shaped hinged connecting plate, the edge of the hinged connecting plate is formed with a blocking strip, and the bottom end and the top end of the hinged connecting plate are rotatably connected with the backboard and the mounting plate respectively.
[0007] Further, a plurality of pulleys are installed on one side of the lifting block, and the pulleys are located in the groove plate.
[0008] Furthermore, recesses are formed on opposite sidewalls of the groove plate, and guide optical shafts that slide with pulleys are fixed in the recesses.
[0009] Furthermore, a protrusion is formed on one side of the lifting block, the protrusion is fixed to the lifting platform, and an L-shaped plate is fixed to the top of the protrusion, with the protruding end of the L-shaped plate extending above the edge of the protrusion.
[0010] Furthermore, baffles are formed on both sides of the top of the protrusion.
[0011] Furthermore, a U-shaped block is fixed on the platform of the lifting platform, which is opposite to the lifting slot.
[0012] Furthermore, a lever is fixed on one of the lifting blocks, and two sets of triggers are installed on the slot plate. The triggers are connected to inclined trigger plates, and the ends of the trigger plates are arc-shaped.
[0013] Compared with the prior art, the technical solution of this application has the following beneficial effects:
[0014] This manual / automatic field lens focusing device uses a lead screw mechanism to drive a lifting block to slide within a protrusion, simultaneously raising and lowering the lifting platform. Simultaneously, rotating the rotating shaft drives one bevel gear, which in turn drives the other bevel gear to rotate the lead screw, completing manual raising and lowering. This dual-purpose raising and lowering mechanism also improves accuracy. During the raising and lowering process, a hinged connecting plate opens and closes accordingly, and the internal wiring is secured by the hinged connecting plate and stop bars to prevent tangling. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model;
[0016] Figure 2 This is a three-dimensional schematic diagram of the backplate connection structure in this utility model;
[0017] Figure 3 This is a three-dimensional schematic diagram of the connection structure of the dual-purpose lifting component in this utility model;
[0018] Figure 4 This is a three-dimensional schematic diagram of the lifting platform connection structure in this utility model;
[0019] Figure 5 This is a three-dimensional schematic diagram of the lifting block connection structure in this utility model.
[0020] In the diagram: 1. Base; 2. Backplate; 21. Slot plate; 22. Recessed block; 23. Guide optical axis; 3. Lifting slot; 4. Dual-purpose lifting assembly; 41. Screw device; 43. Bevel gear; 45. Bearing mounting seat; 46. Rotating shaft; 5. Lifting block; 52. Pulley; 53. L-shaped plate; 54. Protrusion; 55. Baffle; 6. Mounting plate; 7. Hinge connecting plate; 8. Stop bar; 9. Lifting platform; 91. U-block; 10. Laser source; 11. Trigger; 12. Trigger plate; 13. Paddle. Detailed Implementation
[0021] 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.
[0022] Please see Figures 1-5 This embodiment of a manual / automatic field lens focusing device includes a base 1, a back plate 2 mounted on the top of the base 1, grooves 21 formed on both sides of the front of the back plate 2, concave surfaces formed on opposite sides of the two grooves 21, two lifting slots 3 located between the two grooves 21 on the front of the back plate 2, lifting blocks 5 slidably connected in the concave surfaces, a lifting platform 9 fixed between the backs of the two lifting blocks 5 and slidably slidably in the lifting slots 3, a processing head mounted on the lifting platform 9, and a mounting plate 6 fixed between the front sides, a laser source 10 mounted on the mounting plate 6, a dual-purpose lifting assembly 4 for driving the right lifting block 5 to rise and fall in the concave surface on the right side, a V-shaped hinge plate 7 rotatably connected to the front of the back plate 2, the other two ends of the hinge plate 7 rotatably connected to the mounting plate 6 and the back plate 2 respectively, a stop bar 8 formed on both sides of the front of the hinge plate 7, and a binding groove formed between the hinge plate 7 and the stop bar 8.
[0023] In the above structure, the wiring harness of the equipment is placed between two baffles and secured by cable ties or similar internal components to limit its movement. Then, the dual-purpose lifting assembly automatically raises and lowers one of the lifting blocks. With the linkage of the mounting plate, the other lifting block moves accordingly, thereby raising and lowering the lifting platform in the lifting slot. When the lifting platform reaches a certain height, it can be manually adjusted to improve the accuracy of the adjustment. During the process of the mounting plate raising and lowering the laser source, the wiring is secured by the hinged connecting plate and the baffles. The opening and closing of the hinged connecting plate and the baffles prevent the wiring from rubbing against the internal structure and causing damage that could affect the use of subsequent devices.
[0024] like Figures 2-3The dual-purpose lifting assembly 4 includes a lead screw device 41 installed in the concave surface of the right side slot plate 21. The lead screw in the lead screw device 41 passes through the right side lifting block 5, and the nut is fixed to the lifting block 5. A bearing mounting seat 45 is fixed to the right side of the right side slot plate 21. A rotating shaft 46 extending to the outside is fixed in the bearing of the bearing mounting seat 45. One end of the rotating shaft 46 and the outside of the lead screw are both fixed with bevel gears 43, which mesh with each other. Through the operation of the lead screw device, the lifting block is located in the concave surface, which can play a limiting role. Therefore, the nut moves up and down on the lead screw, simultaneously driving the corresponding lifting block to move up and down. Then, with the cooperation of the mounting plate, the lifting block on the other side moves accordingly to complete the automatic lifting and lowering adjustment of the lifting platform. When the specified position is adjusted, the accuracy of the automatic lifting and lowering adjustment will have a slight error. Therefore, the rotating shaft drives the corresponding bevel gear to rotate, and through cooperation with the other bevel gear, drives the lead screw to rotate, completing the fine adjustment of the lifting platform to make the stopping position more precise.
[0025] Each of the two lifting blocks 5 has four pulleys 52 installed on its opposite side, located in a concave surface. The pulleys help to improve the smoothness of the lifting blocks' movement.
[0026] In addition, recesses 22 are formed on both the front and rear side walls of the concave surface in the groove plate 21, and guide shafts 23 that slide with pulleys 52 are fixed in the concave surfaces of the recesses 22. The guide shafts can limit the movement of the pulleys and prevent the pulleys from deviating during the lifting process, thus effectively improving the stability of the lifting process.
[0027] like Figure 1 A lever 13 is fixed to the center of the front of the right-side lifting block 5. Two sets of triggers 11 on the same axis are installed on the right-side slot plate 21. An inclined trigger plate 12 is connected to the trigger 11, and the end of the trigger plate 12 is arc-shaped. The lever 13 is located between the two trigger plates 12. When the lifting block rises or falls, the lever presses the corresponding trigger plate, triggering the trigger plate and thus limiting the highest and lowest points of the lifting platform.
[0028] like Figures 4-5 Two lifting blocks 5 have protrusions 54 fixed to the lifting platform 9 on opposite sides. An L-shaped plate 53 extending to the edge of the protrusion 54 is fixed to the top of the lifting block 5. Baffles 55 are formed on both sides of the top of the protrusion 54. Two U-blocks 91 are fixed to the top of the lifting platform 9. The U-blocks 91, the corresponding baffles 55 and the L-shaped plates form a wire-binding channel to guide the wires and prevent the wires from getting tangled and stuck.
[0029] The working principle of the above embodiments is as follows:
[0030] Before the equipment is put into operation, the wiring is placed between the two baffles. Then, the laser source extends the wiring through the L-shaped plate, baffle, lifting slot, and U-block to form a bundle of wires, thus ensuring that the internal wiring is neatly arranged. When the height of the lifting platform needs to be adjusted, the screw mechanism operates, and with the assistance of the mounting plate, the lifting block completes the lifting operation. During the lifting process, the two hinged connecting plates open and close accordingly to prevent friction damage or entanglement between the internal wiring. Then, the rotating shaft is rotated, and the rotating shaft drives the screw to rotate through the cooperation of two bevel gears, which in turn drives the lifting block to complete the fine adjustment of the lifting platform, thus making the position of the lifting platform more precise.
[0031] The entire workflow is now complete, and anything not described in detail in this specification is existing technology known to those skilled in the art.
[0032] It should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A manual / automatic field lens focusing device, characterized in that: Includes a base (1), a back plate (2) is installed on the base (1), two sets of opposing slots (21) are formed on one side of the back plate (2), and two sets of lifting slots (3) are opened. Lifting blocks (5) are slidably provided in the slots (21), and a dual-purpose lifting component (4) for driving the corresponding lifting block (5) to lift is installed in one of the slots (21). An installation plate (6) is fixed between the two lifting blocks (5), and a laser source (10) is installed on the installation plate (6). A part of the lifting block (5) is located in the lifting slot (3) and a lifting platform (9) is fixed thereon. The dual-purpose lifting assembly (4) includes a screw device (41) installed in one of the slot plates (21), the screw of which passes through the corresponding lifting block (5). A bearing mounting seat (45) is installed on one side of the slot plate (21), and a rotating shaft (46) is rotatably connected in the bearing mounting seat (45). Both the rotating shaft (46) and the screw are fixed with bevel gears (43) that mesh with each other.
2. The manual / automatic field lens focusing device according to claim 1, characterized in that: A V-shaped hinged connecting plate (7) is rotatably connected to the back plate (2). A stop bar (8) is formed at the edge of the hinged connecting plate (7). The bottom and top ends of the hinged connecting plate (7) are rotatably connected to the back plate (2) and the mounting plate (6), respectively.
3. The manual / automatic field lens focusing device according to claim 1, characterized in that: Multiple sets of pulleys (52) are installed on one side of the lifting block (5), and the pulleys (52) are located in the groove plate (21).
4. The manual / automatic field lens focusing device according to claim 3, characterized in that: Each of the opposite sidewalls of the groove plate (21) has a recess (22), and a guide optical shaft (23) that slides with the pulley (52) is fixed in the recess (22).
5. The manual / automatic field lens focusing device according to claim 1, characterized in that: A protrusion (54) is formed on one side of the lifting block (5), the protrusion (54) is fixed to the lifting platform (9), and an L-shaped plate (53) is fixed on the top of the protrusion (54), the protruding end of the L-shaped plate (53) extends to the top of the edge of the protrusion (54).
6. The manual / automatic field lens focusing device according to claim 5, characterized in that: The top two sides of the protrusion (54) are each formed with a baffle (55).
7. The manual / automatic field lens focusing device according to claim 6, characterized in that: The lifting platform (9) has a U-block (91) fixed on its surface, which is opposite to the lifting slot (3).
8. The manual / automatic field lens focusing device according to claim 6, characterized in that: One of the lifting blocks (5) is fixed with a lever (13), and two sets of triggers (11) are installed on the slot plate (21). The triggers (11) are connected with inclined trigger pieces (12), and the ends of the trigger pieces (12) are arc-shaped.