Jig for machining of engraving and milling machine

Abstract

The utility model relates to the field of engraving and milling machine machining, in particular to a jig for engraving and milling machine machining. The jig for machining of the engraving and milling machine comprises a fixing plate, a fixing disc, positioning rods, a rotating mechanism, a fixing shaft, a moving shaft and a driving assembly, through holes are formed in the opposite angles of the fixing plate, the fixing disc is installed at one end of the fixing plate, sliding grooves are formed in the fixing disc at equal intervals, and the positioning rods are slidably connected to the inner walls of the sliding grooves in the fixing disc; a rotating mechanism is installed between the fixing plate and the positioning rod and drives the positioning rod to fix the workpiece to be machined. According to the jig for machining of the engraving and milling machine, due to the design of the rotating mechanism and the positioning rod, precise positioning of a long and thin rod workpiece is achieved. And the positioning rods are gradually gathered under the guide of the rotating disc, so that the workpiece is centered and positioned, and the problem of inaccurate positioning caused by the fact that the slender rod workpiece is slender and is easy to bend is effectively solved.

Description

Technical Field

[0001] This utility model relates to the field of precision engraving machine processing, and in particular to a jig for precision engraving machine processing. Background Technology

[0002] In the field of CNC engraving, slender rod workpieces present many challenges to the machining process due to their unique shape and physical properties, especially in terms of positioning and support, where traditional machining methods often have obvious shortcomings.

[0003] First, from a positioning perspective, due to the slender and easily bent characteristics of long and thin rods, traditional positioning methods are difficult to ensure accuracy during the machining process. In the past, workers may have relied on manual operation or the use of simple fixtures for positioning. However, manual operation is not only inefficient, but also easily affected by human factors, resulting in inaccurate positioning. Simple fixtures often lack sufficient adaptability and flexibility, making it difficult to meet the diverse positioning needs of long and thin rods. This inaccuracy in positioning may cause the workpiece to move or shift during the machining process, thereby affecting machining accuracy and finished product quality.

[0004] Secondly, from a support perspective, slender rod workpieces have poor rigidity and are easily deformed by external forces. During the engraving process, such deformation may lead to inaccurate workpiece dimensions or even damage to the processing equipment. Traditional positioning methods often cannot provide sufficient support and stability for slender rod workpieces, making them susceptible to vibration and impact during processing. This not only reduces processing efficiency but also increases production costs and safety risks.

[0005] Therefore, it is necessary to provide a new jig for precision engraving machining to solve the above-mentioned technical problems. Utility Model Content

[0006] To solve the above-mentioned technical problems, this utility model provides a fixture for precision engraving machine processing.

[0007] The precision engraving machine fixture provided by this utility model includes: a fixed plate, a fixed disk, a positioning rod, a rotating mechanism, a fixed shaft, a moving shaft, and a drive assembly. The fixed plate has through holes at its diagonal corners. A fixed disk is installed at one end of the fixed plate. The fixed disk has equidistant grooves inside. Positioning rods are slidably connected to the inner walls of the grooves inside the fixed disk. A rotating mechanism is installed between the fixed plate and the positioning rods. The rotating mechanism drives the positioning rods to fix the workpiece to be processed. A fixed shaft is installed on the top of the fixed plate. A clearance groove is equidistantly opened at one end of the fixed shaft. A moving shaft is installed at the other end of the fixed plate. A drive assembly is installed between the fixed plate and the moving shaft. The drive assembly is used to drive the moving shaft to slide on the fixed plate.

[0008] Preferably, the rotating mechanism includes: an electric push rod, a rack, a gear ring, a rotating disk, and an arc-shaped groove. A connecting rod is fixedly connected to the middle of the fixed disk, and one end of the connecting rod is rotatably connected to the rotating disk. Arc-shaped grooves are equidistantly opened inside the rotating disk. Several positioning rods pass through the inside of the rotating disk and contact the inner wall of the corresponding arc-shaped groove. An electric push rod is fixedly connected inside the fixed plate. A rack is fixedly connected to the output end of the electric push rod. A gear ring is fixedly connected to the outer wall of the rotating disk, and the gear ring meshes with the rack.

[0009] Preferably, the movable shaft has equidistant circular grooves inside, each of the inner walls of the circular grooves is fixedly connected to a spring, one end of each of the springs is fixedly connected to a spherical protrusion, and the outer wall of each of the spherical protrusions is slidably connected to the corresponding inner wall of the circular groove.

[0010] Preferably, the top of the fixed plate is symmetrically fixedly connected with a limiting slide rail, and the bottom of the moving shaft is symmetrically provided with a limiting groove, and the two limiting slide rails are slidably connected to the inner wall of the corresponding limiting groove.

[0011] Preferably, the drive assembly includes: rack two, gear and rotating rod. The rack two is fixedly connected inside the fixed plate and is parallel to the two limiting slide rails. The rotating rod is slidably connected inside the fixed plate. The two ends of the rotating rod are rotatably connected to the moving shaft. The gear is fixedly connected to the middle of the rotating rod and meshes with the rack two.

[0012] Preferably, a crank handle is fixedly connected to one end of the rotating rod.

[0013] Preferably, a dirt-proof cover is installed on the top of the fixed plate near the rotating disk.

[0014] Compared with related technologies, the precision engraving machine fixture provided by this utility model has the following beneficial effects:

[0015] I. Improve positioning accuracy and efficiency

[0016] The design of the rotating mechanism and positioning rod enables precise positioning of slender rod workpieces. Guided by the rotating disk, the positioning rod gradually converges to center the workpiece, effectively solving the problem of inaccurate positioning caused by the slender and easily bent nature of the workpiece. The design of the positioning rod and rotating disk is highly flexible and can adapt to slender rod workpieces of different diameters and lengths, meeting diverse processing needs without changing the fixture.

[0017] II. Enhancing workpiece support and stability

[0018] The design of the drive assembly and rotating rod allows for adjustment of the position of the moving shaft, providing flexible support according to the workpiece length and processing requirements, ensuring the stability of the workpiece during processing. The spring and spherical protrusion design inside the moving shaft provides initial clamping and support for slender rod workpieces, while also accommodating slender rod workpieces of different diameters. The design of the limiting slide rail and limiting groove ensures the smooth movement of the moving shaft, further improving the stability of the processing and reducing processing errors caused by vibration and impact.

[0019] III. Improving Processing Efficiency and Quality

[0020] The design of the fixture simplifies the positioning and support process of slender rod workpieces, reduces pre-processing work, and improves overall processing efficiency. Precise positioning and stable support ensure the accuracy of slender rod workpieces during processing, improve processing quality and yield. Through automated operation and flexible fixture design, the frequency of manual intervention and fixture replacement is reduced, thereby reducing production costs and time costs.

[0021] IV. Enhanced security and ease of use

[0022] The fixture is designed with safety in mind during operation. Stable support and precise positioning reduce the risk of workpiece movement or displacement, thus lowering safety hazards during processing. The electric push rod and crank handle make operation simple and easy to understand, allowing workers to operate it without complicated training, improving work efficiency and ease of use. The anti-fouling cover on the top of the fixed plate effectively reduces the amount of debris generated during processing from entering the rotating mechanism, preventing damage. Attached Figure Description

[0023] Figure 1 A schematic diagram of the structure of the precision engraving machine tool provided by this utility model;

[0024] Figure 2 for Figure 1 A schematic diagram of the fixed shaft cross-section shown;

[0025] Figure 3 for Figure 2 The diagram shows the structure of the rotating structure.

[0026] Figure 4 for Figure 2 The diagram shows a cross-sectional view of the fixed plate.

[0027] Figure 5 for Figure 4 The diagram shows the structure of the driving component.

[0028] The following are the labels in the diagram: 1. Fixed plate; 2. Fixed disc; 3. Slide groove; 4. Positioning rod; 5. Fixed shaft; 6. Clearance groove; 7. Moving shaft; 8. Electric push rod; 9. Rack one; 10. Gear ring; 11. Rotating disc; 12. Arc groove; 13. Connecting rod; 14. Spring; 15. Spherical protrusion; 16. Limiting slide rail; 17. Limiting groove; 18. Rack two; 19. Gear; 20. Rotating rod; 21. Crank handle; 22. Anti-fouling cover. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0030] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0031] Please see Figures 1 to 5 A precision engraving machine jig includes: a fixed plate 1, a fixed disk 2, a positioning rod 4, a rotating mechanism, a fixed shaft 5, a moving shaft 7, and a drive assembly. The fixed plate 1 has through holes at its diagonal corners. The fixed disk 2 is mounted on one end of the fixed plate 1. The fixed disk 2 has equidistant grooves 3 inside, and the positioning rods 4 are slidably connected to the inner walls of the grooves 3 inside the fixed disk 2. A rotating mechanism is installed between the fixed plate 1 and the positioning rods 4, driving the positioning rods 4 to fix the workpiece to be processed. The fixed shaft 5 is mounted on the top of the fixed plate 1. One end of the fixed shaft 5 has equidistant clearance grooves 6, and the moving shaft 7 is mounted on the other end of the fixed plate 1. A drive assembly is installed between the fixed plate 1 and the moving shaft 7, driving the moving shaft 7 to slide on the fixed plate 1. The rotating mechanism includes: an electric... The rotating disk 11 comprises a push rod 8, a rack 9, a gear ring 10, a rotating disk 11, and an arc-shaped groove 12. A connecting rod 13 is fixedly connected to the middle of the fixed disk 2. One end of the connecting rod 13 is rotatably connected to the rotating disk 11. Arc-shaped grooves 12 are equidistantly formed inside the rotating disk 11. Several positioning rods 4 pass through the interior of the rotating disk 11 and contact the inner wall of the corresponding arc-shaped groove 12. An electric push rod 8 is fixedly connected inside the fixed plate 1. A rack 9 is fixedly connected to the output end of the electric push rod 8. A gear ring 10 is fixedly connected to the outer wall of the rotating disk 11. The gear ring 10 meshes with the rack 9. Circular grooves are equidistantly formed inside the moving shaft 7. Springs 14 are fixedly connected to the inner walls of several circular grooves. A spherical protrusion 15 is fixedly connected to one end of several springs 14. The outer wall of several spherical protrusions 15 is slidably connected to the inner wall of the corresponding circular groove.

[0032] It should be noted that: First, the fixing plate 1 is fixed to the worktable with bolts through the through holes opened at its diagonal corners. This step ensures the stability and accuracy of the entire fixture on the worktable. The slender rod workpiece is then passed through the moving shaft 7. The moving shaft 7 has equidistant circular grooves inside, and each groove is fixed with a spring 14. One end of the spring 14 is fixedly connected to a spherical protrusion 15. When the slender rod workpiece passes through, the spherical protrusion 15 will initially clamp and support the workpiece under the action of the spring 14. At the same time, it can accommodate workpieces of different diameters. The slender rod workpiece continues to pass through the fixing shaft 5 until it contacts the rotating disk 11. The clearance groove 6 on the fixing shaft 5 is designed to allow... When the positioning rod 4 is brought together, it can pass through and further position the workpiece. The electric push rod 8 is activated, and the output end of the electric push rod 8 pushes the rack 9 forward. The rack 9 meshes with the toothed ring 10 on the outer wall of the rotating disk 11. Therefore, the movement of the rack 9 will drive the toothed ring 10 and the rotating disk 11 to rotate counterclockwise. The arc-shaped grooves 12 that are equally spaced inside the rotating disk 11 contact the middle of several positioning rods 4. As the rotating disk 11 rotates, the positioning rods 4 gradually converge under the guidance of the arc-shaped grooves 12. One end of the positioning rod 4 slides in the sliding groove 3 inside the fixed disk 2, and the other end passes through the clearance groove 6 and converges inside the fixed shaft 5, thereby centering the slender rod workpiece.

[0033] After the slender rod workpiece is processed, the electric push rod 8 resets, driving the rack 9 to move, which in turn causes the toothed ring 10, which meshes with the rack 9, to rotate clockwise. The rotating disk 11 also rotates accordingly, and under the action of the arc groove 12, it drives the positioning rod 4 to disperse. At this time, the fixed slender rod workpiece is not subject to the force of the positioning rod 4 and can be easily removed. The above process can be repeated to continue the positioning and processing operation of the slender rod workpiece to be processed.

[0034] Please see Figure 4 and Figure 5 The top of the fixed plate 1 is symmetrically fixedly connected with a limiting slide rail 16, and the bottom of the moving shaft 7 is symmetrically opened with a limiting groove 17. The two limiting slide rails 16 are slidably connected to the inner wall of the corresponding limiting groove 17. The driving assembly includes: rack 18, gear 19 and rotating rod 20. The inside of the fixed plate 1 is fixedly connected with a rack 18 parallel to the two limiting slide rails 16. The inside of the fixed plate 1 is slidably connected with a rotating rod 20. The two ends of the rotating rod 20 are rotatably connected to the moving shaft 7. The middle of the rotating rod 20 is fixedly connected with a gear 19. The gear 19 is meshed with the rack 18. One end of the rotating rod 20 is fixedly connected with a crank 21. A dirt cover 22 is installed on the top of the fixed plate 1 near the rotating disk 11.

[0035] It should be noted that, due to the poor rigidity of the slender rod workpiece, the fixture design provides additional support. By gripping and rotating the crank handle 21, the drive assembly is activated, causing the rotating rod 20 to move inside the fixed plate 1 and drive the gear 19 to rotate. The gear 19 meshes with the rack 18 fixed inside the fixed plate 1. Therefore, the rotation of the gear 19 is converted into linear movement of the rotating rod 20 and the moving shaft 7. According to the processing requirements, the position of the moving shaft 7 can be adjusted by continuing to rotate the crank handle 21. The top of the fixed plate 1 is symmetrically and fixedly connected with the limit slide rail 16. The moving shaft 7 has a limit groove 17 corresponding to the limit slide rail 16 inside. Therefore, the moving shaft 7 can move smoothly under the guidance of the limit slide rail 16 and the limit groove 17, ensuring effective support and stable processing of the slender rod workpiece.

[0036] The working principle of the precision engraving machine jig provided by this utility model is as follows:

[0037] I. Installation and Preliminary Positioning

[0038] Mounting plate 1 installation:

[0039] First, the fixing plate 1 is fixed to the workbench with bolts through the through holes opened at its diagonal corners. This step ensures the stability and accuracy of the entire fixture on the workbench.

[0040] Placement of slender rod workpieces:

[0041] The slender rod workpiece is passed through the moving shaft 7. The moving shaft 7 has equally spaced circular grooves inside, and a spring 14 is fixed in each circular groove. One end of the spring 14 is fixedly connected to a spherical protrusion 15. When the slender rod workpiece passes through, the spherical protrusion 15 will initially clamp and support the workpiece under the action of the spring 14, and can adapt to workpieces of different diameters.

[0042] Passing through fixed axis 5:

[0043] The slender rod workpiece continues to pass through the fixed shaft 5 until it contacts the rotating disk 11. The clearance groove 6 on the fixed shaft 5 is designed to allow the positioning rod 4 to pass through and further position the workpiece when it is brought together.

[0044] II. Positioning and Centering

[0045] Rotary mechanism start-up:

[0046] When the electric push rod 8 is activated, the output end of the electric push rod 8 pushes the rack 9 forward. The rack 9 meshes with the toothed ring 10 on the outer wall of the rotating disk 11. Therefore, the movement of the rack 9 will cause the toothed ring 10 and the rotating disk 11 to rotate counterclockwise.

[0047] Positioning rod 4 converges:

[0048] The arc-shaped grooves 12 equidistantly opened inside the rotating disk 11 contact the middle of several positioning rods 4. As the rotating disk 11 rotates, the positioning rods 4 gradually converge under the guidance of the arc-shaped grooves 12. One end of the positioning rod 4 slides in the sliding groove 3 inside the fixed disk 2, and the other end passes through the clearance groove 6 and converges inside the fixed shaft 5, thereby centering the slender rod workpiece.

[0049] III. Workpiece Support and Adjustment

[0050] Workpiece support:

[0051] Because the rigidity of the slender rod workpiece is poor, the fixture design provides additional support. By holding the crank handle 21 and turning it, the drive assembly is activated. The rotating rod 20 moves inside the fixed plate 1 and drives the gear 19 to rotate. The gear 19 meshes with the rack 18 fixed inside the fixed plate 1. Therefore, the rotation of the gear 19 is converted into the linear movement of the rotating rod 20 and the moving shaft 7.

[0052] Position adjustment:

[0053] According to the processing requirements, the position of the moving shaft 7 can be adjusted by continuing to turn the crank handle 21. The top of the fixed plate 1 is symmetrically fixedly connected to the limit slide rail 16. The moving shaft 7 has a limit groove 17 corresponding to the limit slide rail 16 inside. Therefore, the moving shaft 7 can move smoothly under the guidance of the limit slide rail 16 and the limit groove 17, ensuring effective support and stable processing of the slender rod workpiece.

[0054] After the slender rod workpiece is processed, the electric push rod 8 resets, driving the rack 9 to move, which in turn causes the toothed ring 10, which meshes with the rack 9, to rotate clockwise. The rotating disk 11 also rotates accordingly, and under the action of the arc groove 12, it drives the positioning rod 4 to disperse. At this time, the fixed slender rod workpiece is not subject to the force of the positioning rod 4 and can be easily removed. The above process can be repeated to continue the positioning and processing operation of the slender rod workpiece to be processed.

[0055] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A jig for precision engraving machine processing, characterized in that, include: The fixing plate (1) has through holes at its diagonal corners; Fixed plate (2), fixed plate (1) is installed at one end of fixed plate (1), and sliding grooves (3) are opened at equal intervals inside fixed plate (2); The positioning rod (4) and the inner wall of the sliding groove (3) inside the fixed plate (2) are slidably connected to the positioning rod (4); A rotating mechanism is installed between the fixed plate (1) and the positioning rod (4). The rotating mechanism drives the positioning rod (4) to fix the workpiece to be processed. A fixed shaft (5) is installed on the top of a fixed plate (1), and a clearance groove (6) is provided at equal intervals at one end of the fixed shaft (5). The movable shaft (7) is installed at the other end of the fixed plate (1); A drive assembly is installed between the fixed plate (1) and the movable shaft (7). The drive assembly is used to drive the movable shaft (7) to slide on the fixed plate (1).

2. The precision engraving machine fixture according to claim 1, characterized in that, The rotating mechanism includes: an electric push rod (8), a rack (9), a gear ring (10), a rotating disk (11), and an arc groove (12). A connecting rod (13) is fixedly connected to the middle of the fixed disk (2). One end of the connecting rod (13) is rotatably connected to the rotating disk (11). Arc grooves (12) are equidistantly opened inside the rotating disk (11). Several positioning rods (4) pass through the inside of the rotating disk (11) and contact the inner wall of the corresponding arc groove (12). An electric push rod (8) is fixedly connected inside the fixed plate (1). A rack (9) is fixedly connected to the output end of the electric push rod (8). A gear ring (10) is fixedly connected to the outer wall of the rotating disk (11). The gear ring (10) meshes with the rack (9).

3. The precision engraving machine tool according to claim 1, characterized in that, The movable shaft (7) has equidistant circular grooves inside, and springs (14) are fixedly connected to the inner walls of several circular grooves. One end of each spring (14) is fixedly connected to a spherical protrusion (15), and the outer wall of each spherical protrusion (15) is slidably connected to the inner wall of the corresponding circular groove.

4. The precision engraving machine fixture according to claim 1, characterized in that, The top of the fixed plate (1) is symmetrically fixedly connected with a limiting slide rail (16), and the bottom of the moving shaft (7) is symmetrically opened with a limiting groove (17). The two limiting slide rails (16) are slidably connected to the inner wall of the corresponding limiting groove (17).

5. The precision engraving machine fixture according to claim 4, characterized in that, The drive assembly includes: rack two (18), gear (19) and rotating rod (20). The inside of the fixed plate (1) is fixedly connected to rack two (18) which is parallel to the two limiting slide rails (16). The inside of the fixed plate (1) is slidably connected to rotating rod (20). The two ends of rotating rod (20) are rotatably connected to moving shaft (7). The middle part of rotating rod (20) is fixedly connected to gear (19), which meshes with rack two (18).

6. The precision engraving machine fixture according to claim 5, characterized in that, A crank handle (21) is fixedly connected to one end of the rotating rod (20).

7. The precision engraving machine fixture according to claim 1, characterized in that, A dirt cover (22) is installed on the top of the fixed plate (1) near the rotating disk (11).

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