Auxiliary supporting device for mercerizing rod
By designing an auxiliary support device for the finishing screw, the straightness and stability problems caused by deflection deformation of the finishing screw during the machining of long workpieces on lathes were solved, achieving high-precision and stable machining results and extending the service life of the equipment.
Patent Information
- Application Number
- CN202520603747.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-02
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-04-02
AI Technical Summary
When machining long workpieces, the lead screw of a lathe is prone to deflection and deformation, which can lead to a decrease in straightness and stability and affect machining accuracy.
A lead screw and guide bar auxiliary support device was designed. By setting a support mechanism on the machine bed, including a positioning body, a screw, a vertical shaft, a bracket body, a lead screw copper support plate and a guide bar copper support plate, and with the help of an adjusting sleeve and an adjusting pad, the device ensures the stable installation and flexible adjustment of the lead screw and guide bar, and reduces deflection deformation.
It improves the machining accuracy and stability of machine tools when processing workpieces over 5 meters long, reduces the generation of dark lines, extends the service life of equipment, and improves maintenance efficiency.
Smart Images

Figure CN223916684U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of machine tool processing, specifically a wire guide bar auxiliary support device. Background Technology
[0002] As a crucial component of machine tools, the straightness and stability of lathe lead screws are essential for ensuring machining accuracy. However, during use, lathe lead screws can encounter various problems leading to deflection and deformation, mainly including overload operation, improper storage, careless transportation, improper installation, or insufficient installation precision.
[0003] The longer the workpiece being machined on a lathe, the more likely the lead screw will be to deflect. The lead screw on a lathe is supported at both ends. Based on practical experience, when the machine tool is machining a workpiece longer than 5 meters, the deflection will increase due to the increased span of the support points, affecting its straightness and stability, and thus affecting the machining accuracy, resulting in dark lines on the machined parts.
[0004] To address the above problems, this utility model provides a silken bar auxiliary support device to solve the aforementioned issues. Summary of the Invention
[0005] To address this issue, this invention improves the straightness of the silkening rod by designing a support mechanism. When processing parts with lengths ranging from 5 to 15 meters, appropriately increasing the number of these devices yields more significant results. The support mechanism can be adjusted to its optimal installation position by moving it longitudinally along the machine bed during installation.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a silken bar auxiliary support device, comprising:
[0007] The machine bed has a U-shaped guide rail fixedly mounted on it, and a cutting mechanism is slidably mounted on the U-shaped guide rail for cutting the workpiece. The machine bed also has a clamping mechanism for clamping the workpiece.
[0008] A feed drive mechanism is mounted on the bed and connected to the cutting mechanism, used to drive and adjust the cutting mechanism to cut the workpiece according to work requirements;
[0009] A support mechanism, mounted on the mountain-shaped guide rail, is used to support the feed drive mechanism.
[0010] Further, preferably, the supporting mechanism includes a positioning body, which is disposed on the mountain-shaped guide rail. A through hole is provided through the positioning body, and a screw is rotatably installed through the through hole. A handle is fixedly provided at one end of the screw, and the other end is connected to a vertical shaft by a threaded connection. The other end of the vertical shaft is fitted with a bracket body by a cylindrical head set screw.
[0011] The bracket body is fixedly installed with screw rod copper brackets and smooth rod copper brackets by bolts.
[0012] Furthermore, preferably, the vertical shaft is provided with a first keyway, a shoulder, and an external thread at one end near the bracket body;
[0013] A flat key is installed in the first keyway, and a pad is provided between the shoulder and the positioning body. A second keyway is provided on the pad. The first keyway and the second keyway cooperate with the flat key to limit the rotation of the vertical shaft, so that it can only move up and down.
[0014] Furthermore, preferably, an adjusting sleeve is provided at the connection between the vertical shaft and the bracket body; a shim is provided between the positioning body and the handle;
[0015] An adjusting nut is rotatably provided at the end of the bracket body, and the adjusting nut is connected to the external thread.
[0016] Furthermore, preferably, an adjustment pad is provided between the copper bracket of the optical bar and the bracket body.
[0017] Further, preferably, the feed drive mechanism includes:
[0018] The spindle box is mounted on the bed and serves as the power source for the machine tool.
[0019] The X / Z axis feed box is mounted on the spindle box and connected to the output end of the spindle box;
[0020] One end of the lead screw is connected to the Z-axis output end of the X / Z-axis feed box, and the other end is mounted on the lead screw copper bearing.
[0021] The optical bar has one end connected to the X-axis output end of the X / Z-axis feed box, and the other end mounted on the copper support plate of the optical bar.
[0022] Further, preferably, the cutting mechanism includes an apron box, which is slidably disposed on the bed and connected to the X / Z axis feed box;
[0023] A bed tool holder is installed on the slide box, and a lathe tool is set on the bed tool holder.
[0024] Furthermore, preferably, a conversion component is provided in the slide box, the conversion component is driven by the optical bar and connected to the bed saddle tool holder;
[0025] The slide box is also connected to the lead screw, and moves in the Z direction under the drive of the lead screw.
[0026] Furthermore, preferably, the clamping mechanism includes a machine tool tailstock, which is disposed on the bed of the machine tool;
[0027] A center is also provided on the spindle box, and the center and the machine tool tailstock are used to clamp and fix the workpiece.
[0028] Compared with the prior art, the present invention provides a silken bar auxiliary support device, which has the following beneficial effects:
[0029] 1. With the optimized structural design of the support mechanism, the support of the lead screw copper support and the guide screw copper support is more stable, thereby effectively improving the machining accuracy and stability of the machine tool for workpieces longer than 5 meters, avoiding straightness deviation caused by deflection deformation of the lead screw and guide screw during the machining process, and reducing the generation of dark lines.
[0030] 2. After prolonged use, wear on the lead screw and guide screw copper bearings can be compensated for using adjusting sleeves and shims to reduce the clearance between the lead screw and bearings, ensuring machine tool operating accuracy. The combination of high and low dimension positioning constraints and two adjustment points makes the device easy to install and flexible to adjust, extending its service life while significantly improving maintenance efficiency and reducing downtime. Attached Figure Description
[0031] Figure 1 A schematic diagram of the overall machining process for a mercerizing bar auxiliary support device;
[0032] Figure 2 This is a schematic diagram of a mercerizing bar auxiliary support device and a mercerizing bar support mechanism.
[0033] Figure 3 This is a schematic diagram of a screw in a silk thread bar auxiliary support device;
[0034] Figure 4 This is a schematic diagram of a column for a silk bar auxiliary support device.
[0035] In the diagram: 1. Spindle box; 2. X / Z feed box; 3. Bed; 4. Apron; 5. Tool post; 6. Workpiece; 7. Lead screw; 8. Support mechanism; 9. Feed rod; 10. Tailstock; 11. Tool; 12. Handle; 13. Shim; 14. Screw; 15. Positioning body; 16. Key; 17. Backing plate; 18. Vertical spindle; 19. Lead screw copper bearing; 20. Adjusting sleeve; 22. Support body; 23. Cylindrical head set screw; 24. Feed rod copper bearing; 25. Adjusting shim; 27. Adjusting nut. Detailed Implementation
[0036] Reference Figures 1-4 This utility model provides a technical solution: a silken bar auxiliary support device, comprising:
[0037] The machine bed 3 has a mountain-shaped guide rail fixedly mounted on it, and a cutting mechanism is slidably mounted on the mountain-shaped guide rail. The cutting mechanism is used to perform cutting processing on the workpiece 6. A clamping mechanism is also provided on the machine bed 3, which is used to fix and clamp the workpiece 6.
[0038] A feed drive mechanism is mounted on the bed 3 and connected to the cutting mechanism, used to drive and adjust the cutting mechanism to cut the workpiece 6 according to work requirements;
[0039] The support mechanism 8 is installed on the mountain-shaped guide rail and is used to support the feed drive mechanism.
[0040] When machining workpieces longer than 5 meters on a machine tool, the stable operation of the feed drive mechanism is ensured by adjusting the support mechanism 8, which effectively reduces the deflection deformation of the feed drive mechanism, improves the machining accuracy, and reduces the generation of dark lines on the workpiece 6.
[0041] In a preferred embodiment, the supporting mechanism 8 includes a positioning body 15, which is disposed on the mountain-shaped guide rail. A through hole is provided through the positioning body 15, and a screw 14 is rotatably installed through the through hole. One end of the screw 14 is fixedly provided with a handle 12, and the other end is connected to one end of a vertical shaft 18 by a thread. The other end of the vertical shaft 18 is provided with a bracket body 22 by a cylindrical head set screw 23.
[0042] The lead screw copper bracket 19 and the light screw copper bracket 24 are respectively fixed on the bracket body 22 by bolts.
[0043] In a preferred embodiment, an adjustment pad 25 is provided between the optical bar copper bracket 24 and the bracket body 22.
[0044] It should be noted that by rotating the handle 12, the screw 14 causes the vertical spindle 18 to move upwards, the pad 17 is clamped onto the shoulder of the bed 3 and the vertical spindle 18, and the bracket body 22 and its parts move upwards, ensuring that the lead screw copper support 19 and the guide rod copper support 24 are in the correct installation position. Similarly, after the height of the guide rod copper support 24 is determined, the dimensional error between the guide rod 9 and the lead screw 7 is measured, and the thickness of the grinding adjustment shim 25 is adjusted to ensure that the center of the guide rod copper support 24 is aligned with the guide rod 9. Through this dual adjustment mechanism, not only is the initial installation accurate, but it can also be flexibly adjusted according to wear conditions during use, maintaining the efficient operation and machining accuracy of the device.
[0045] In a preferred embodiment, the vertical shaft 18 is provided with a first keyway, a shoulder, and an external thread at one end near the bracket body 22;
[0046] A flat key 16 is installed in the first keyway, and a pad 17 is provided between the shoulder and the positioning body 15. A second keyway is provided on the pad 17. The first keyway and the second keyway cooperate with the flat key 16 to limit the rotation of the vertical shaft 18, so that it can only move up and down.
[0047] It should be noted that the design of the pad 17 not only increases the stability of the structure, but also, through the cooperation of the second keyway on it and the flat key 16, further restricts the lateral displacement of the vertical shaft 18, ensuring its precise movement in the vertical direction. The first and second keyways form a stable locking mechanism under the action of the flat key 16, preventing the vertical shaft 18 from rotating and allowing it to move only in the vertical direction, thus avoiding accuracy deviations caused by lateral offset.
[0048] In a preferred embodiment, an adjusting sleeve 20 is provided at the connection between the vertical shaft 18 and the bracket body 22; a shim 13 is provided between the positioning body 15 and the handle 12; the adjusting sleeve 20 is connected to the vertical shaft 18 by threads to ensure the fine-tuning accuracy of the bracket body 22. The shim 13 is used to balance the rotational torque of the handle 12 and reduce wear.
[0049] An adjusting nut 27 is rotatably mounted at the end of the bracket body 22, and the adjusting nut 27 is connected to the external thread. When the adjusting nut 27 rotates, it drives the bracket body 22 and its parts to make a slight adjustment along the keyway direction of the vertical shaft 18, ensuring the precise alignment of the lead screw copper bearing 19 and the guide rod copper bearing 24 with the corresponding lead screw 7 and guide rod 9. Through this fine adjustment, the device can maintain high precision during long-term use, effectively extending the service life of the equipment. After adjustment, the cylindrical head set screw 23 is tightened to ensure stable operation of the device.
[0050] In a preferred embodiment, the feed drive mechanism includes:
[0051] The spindle box 1 is mounted on the bed 3 and serves as the power source for the machine tool.
[0052] X / Z axis feed box 2 is mounted on the spindle box 1 and connected to the output end of the spindle box 1;
[0053] One end of the lead screw 7 is connected to the Z-axis output end of the X / Z-axis feed box 2, and the other end is mounted on the lead screw copper bearing 19;
[0054] The optical bar 9 is connected at one end to the X-axis output end of the X / Z-axis feed box 2, and at the other end is mounted on the optical bar copper support 24.
[0055] After completing the above adjustments and confirming the correct installation positions of the lead screw copper support 19 and the guide screw copper support 24, the workpiece 6 is clamped and fixed using the clamping mechanism. The spindle box 1 is then activated to drive the X / Z axis feed box 2. The feed movements of the lead screw 7 and guide screw 9 are independently controlled according to machining requirements, achieving precise movement of the cutting mechanism in the Z and X directions and ensuring the machining accuracy of the workpiece 6. Simultaneously, under the action of the support mechanism 8, even if the workpiece length increases to over 5 meters, the deflection deformation of the lead screw 7 and guide screw 9 can still be effectively controlled, ensuring the straightness and stability of the lead screw 7 and guide screw 9 during machining and improving overall machining accuracy. Through this design, the machine tool can maintain high efficiency and stability when machining workpieces of different lengths, significantly extending the equipment's service life and meeting the requirements of high-precision machining.
[0056] In a preferred embodiment, the cutting mechanism includes a slide box 4, which is slidably disposed on the bed 3 and connected to the X / Z axis feed box 2;
[0057] A bed tool holder 5 is installed on the slide box 4, and a lathe tool 11 is provided on the bed tool holder 5.
[0058] In a preferred embodiment, a conversion component is provided in the slide box 4. The conversion component is driven by the optical bar 9 and connected to the bed saddle tool holder 5.
[0059] The slide box 4 is also connected to the lead screw 7, and moves in the Z direction under the drive of the lead screw 7.
[0060] It should be explained that the conversion mechanism, driven by the guide rod 9, enables the precise movement of the bed tool holder 5 in the X-axis, which, in conjunction with the Z-axis movement driven by the lead screw 7, ensures precise cutting of the cutting tool 11 in both directions. Through this composite motion mechanism, the machine tool can efficiently complete the precision machining of complex workpieces, further improving machining efficiency and product quality.
[0061] In a preferred embodiment, the clamping mechanism includes a machine tool tailstock 10, which is disposed on the bed 3;
[0062] A center is also provided on the spindle box 1, and the center and the machine tool tailstock 10 are used to clamp and fix the workpiece 6.
[0063] It should be noted that by adjusting the distance between the bed mechanism 10 and the center, the workpiece 6 can be stably clamped at different lengths, avoiding vibration and displacement during the machining process, and further improving cutting accuracy and surface finish.
[0064] In practice, the workpiece 6 is fixedly clamped by the tailstock 10 and the center of the machine tool. The spindle box 1 is started, and with the coordinated action of the X / Z axis feed box 2, the lead screw 7 and the feed rod 9 precisely drive the slide box 4 and the tool post 5 to realize the composite cutting of the cutting tool 11 in the Z and X directions.
[0065] During the cutting process, the support mechanism 8 effectively suppresses the deflection deformation of the lead screw 7 and guide screw 9, ensuring that they maintain high straightness and stability when machining workpieces longer than 5 meters, thereby significantly improving the machining accuracy and surface quality of the workpiece 6. Through this optimized design, the machine tool can achieve efficient and precise cutting results when handling various complex workpieces, meeting the stringent requirements of high-end manufacturing.
[0066] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A silk thread holding assisting device, characterized by: Include: The bed body (3) is provided with a mountain-shaped guide rail fixedly arranged on the bed body (3), a cutting mechanism is slidingly arranged on the mountain-shaped guide rail, the cutting mechanism is used for cutting workpiece (6); The clamping mechanism is also provided on the bed body (3), and the clamping mechanism is used for fixedly clamping the workpiece (6); The feed drive mechanism is installed on the bed body (3) and connected with the cutting mechanism, which drives and adjusts the cutting mechanism to cut the workpiece (6) according to the work requirement; The supporting mechanism (8) is installed on the mountain-shaped guide rail and used for supporting the feed drive mechanism.
2. A mercerizing lever assist holder as defined in claim 1, wherein: The supporting mechanism (8) includes a positioning body (15) arranged on the mountain-shaped guide rail, a through hole is formed in the positioning body (15), a screw rod (14) is rotatably installed through the through hole, one end of the screw rod (14) is fixedly provided with a handle (12), the other end is connected with one end of a vertical shaft (18) through a threaded connection, the other end of the vertical shaft (18) is provided with a bracket body (22) through a cylindrical head set screw (23); The screw copper support tile (19) and the light screw copper support tile (24) are fixedly arranged on the bracket body (22) through bolts.
3. A mercerizing lever assist holder as defined in claim 2, wherein: A first key groove, a shoulder and an end close to the bracket body (22) are formed on the vertical shaft (18). A flat key (16) is installed in the first key groove, a gasket (17) is arranged between the shoulder and the positioning body (15), and a second key groove is formed in the gasket (17); The first key groove and the second key groove cooperate with the flat key (16) to limit the rotation of the vertical shaft (18), so that it can only move up and down.
4. A mercerizing lever assist holder as defined in claim 3, wherein: An adjusting sleeve (20) is arranged at the connection between the vertical shaft (18) and the bracket body (22); A gasket (13) is arranged between the positioning body (15) and the handle (12); An adjusting nut (27) is rotatably arranged at the end of the bracket body (22), and the adjusting nut (27) is connected with the external thread.
5. A mercerizing lever assist holder as defined in claim 3, wherein: An adjusting pad (25) is arranged between the light screw copper support tile (24) and the bracket body (22).
6. A mercerizing lever assist holder according to claim 2, wherein: The feed drive mechanism includes: The main shaft box (1) is arranged on the bed body (3) and is the power source of the machine tool; The X / Z axis feed box (2) is arranged on the main shaft box (1) and connected with the output end of the main shaft box (1); The screw rod (7) is connected with the Z-axis output end of the X / Z axis feed box (2) at one end and installed on the screw copper support tile (19) at the other end; The light screw (9) is connected with the X-axis output end of the X / Z axis feed box (2) at one end and installed on the light screw copper support tile (24) at the other end.
7. A mercerizing lever assist holder as defined in claim 6, wherein: The cutting mechanism includes a slide plate box (4) slidingly arranged on the bed body (3) and connected with the X / Z axis feed box (2); The bed saddle tool rest (5) is installed on the slide plate box (4), and the turning tool (11) is arranged on the bed saddle tool rest (5).
8. A mercerizing lever assist holder according to claim 7, characterized in that: A conversion piece is arranged on the slide box (4), which is driven by the light lever (9) and connected with the saddle tool rest (5). The slide box (4) is also connected with the screw rod (7), and realizes Z-direction movement under the driving of the screw rod (7).
9. A mercerizing lever assist holder as defined in claim 6, wherein: The clamping mechanism comprises a machine tool tailstock (10) arranged on the lathe bed (3). A tailstock is further arranged on the spindle box (1), and the tailstock and the machine tool tailstock (10) are used for clamping and fixing the workpiece (6).