A straightening machine for anti-deviation bar processing
By setting up a precision alignment component and a magnetic block adjustment system on the straightening machine, the problem of dynamic adjustment of the position and diameter of the straightening rollers was solved, enabling precise straightening of bars of different diameters and improving the straightening effect and speed.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEBEI QINGSHENG PRECISION MASCH MFG CO LTD
- Filing Date
- 2025-06-12
- Publication Date
- 2026-08-04
AI Technical Summary
Existing straightening machines for anti-deviation bar processing cannot accurately adjust the position of the straightening rollers according to the different diameters of bent bars, resulting in a decrease in straightening effect and a limitation on straightening speed.
By setting up a precision alignment component and a magnetic block adjustment system, the position and diameter of the straightening roller can be dynamically adjusted. Utilizing the principle of repulsion and attraction between the motor-driven bidirectional lead screw and the magnetic blocks, it can adapt to bars of different diameters, thereby improving the straightening effect and speed.
This technology enables the straightening rollers to precisely adapt to bars of different diameters, improving the straightening effect and speed, and enhancing the adaptability and efficiency of the straightening machine.
Smart Images

Figure CN224586657U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of metal bar processing equipment, specifically to a straightening machine for bar processing that prevents deviation. Background Technology
[0002] With the development of modern industry, especially in fields such as automobile manufacturing, machinery manufacturing, and aerospace, the requirements for the straightness and dimensional accuracy of bar stock are becoming increasingly stringent. Components in these fields often require extremely high dimensional accuracy and shape stability to ensure product performance and safety. Therefore, straightening machines for bar stock processing that prevent misalignment have emerged to meet this demand for high-precision machining.
[0003] Chinese Patent CN219335675U discloses a straightening machine for processing metal bars, belonging to the field of metal bar straightening technology. Addressing the problem of inconvenient replacement of guide tubes on a straightening machine, the invention includes a straightening machine body, a feed inlet, and a guiding mechanism. The guiding mechanism includes a rotating rod, an adjusting disc, and a mounting groove. Guide tubes are detachably installed in the mounting groove. Several guide tubes of different sizes are arranged, with one corresponding to the opening of the feed inlet. Through the guiding mechanism, during the straightening of metal bars, the adjusting disc can be easily rotated to manipulate several guide tubes for replacement. This allows for convenient rotation of the guide tube matching the metal bar size to the position corresponding to the feed inlet, eliminating the need for manual disassembly and assembly. This facilitates the replacement of guide tubes of the corresponding size in a short time, improving work efficiency and enhancing practicality.
[0004] When using the aforementioned anti-deviation bar straightening machine, it is impossible to precisely adjust the position of the straightening rollers according to the different diameters of the bent bars. This not only leads to a decrease in the straightening effect of the bars, but also limits the straightening speed. Utility Model Content
[0005] This invention proposes a straightening machine for anti-deviation bar processing, which solves the problem that in the use of anti-deviation bar processing straightening machines, when processing bent bars, the position of the straightening rollers cannot be accurately adjusted according to the different diameters of the bent bars, which not only leads to a decrease in the straightening effect of the bars, but also limits the straightening speed.
[0006] The technical solution of this utility model is as follows: a straightening machine for anti-deviation bar processing, including a frame body, a precision alignment component fixed inside the frame body, and a support component fixed on the top of the frame body; The precision alignment component includes a lead screw groove, inside which a first motor is fixed. A bidirectional lead screw is fixed at the output end of the first motor. A slider is threaded onto the bidirectional lead screw. A connecting rod is fixed to the side of the slider. A straightening roller is fixed to the other end of the connecting rod.
[0007] Preferably, the top of the frame body is provided with an adjustment groove, a directional rod is fixed in the adjustment groove, and the straightening roller is slidably connected to the directional rod.
[0008] Preferably, a connecting groove is provided between the adjusting groove and the lead screw groove.
[0009] Preferably, a first magnetic block is fixed on the side of the adjusting groove away from the straightening roller, a sliding groove is provided inside the straightening roller, a second magnetic block is slidably connected in the sliding groove, a lifting groove is provided at the top of the sliding groove, a third magnetic block is slidably connected in the lifting groove, and a movable roller is fixed at the top of the third magnetic block.
[0010] Preferably, the side of the second magnetic block closer to the first magnetic block repels the first magnetic block, and the side of the second magnetic block closer to the third magnetic block repels the third magnetic block.
[0011] Preferably, the support assembly includes a fixed block, a sliding rod fixed inside the fixed block, a support block slidably connected in the sliding rod, a second motor fixed at the bottom of the support block, a gear fixed at the output end of the second motor, racks meshing with both sides of the gear, a hinge block fixed on the side of the rack away from the gear, a connecting rod hinged on the hinge block, and a support plate hinged at the other end of the connecting rod.
[0012] Preferably, the connecting rod is provided in two sets, and the two sets of connecting rods are symmetrically distributed on both sides of the gear. Each set of connecting rods has two rods, and a fixed rod is rotatably connected to the middle of the connecting rod.
[0013] Preferably, a positioning rod is fixed to the bottom of the support block, and the bottom of the hinge block is slidably connected to the positioning rod.
[0014] The working principle and beneficial effects of this utility model are as follows: 1. In this utility model, by setting a fine-tuning component, the position of the straightening roller can be adjusted according to the different diameters of the bent bar, so that the straightening roller can adapt to bars of different diameters during the straightening process, thereby improving the straightening effect and the straightening speed. At the same time, by using magnetic blocks, the diameter of the straightening roller can be adjusted by the principle of magnetic repulsion when the position of the straightening roller is changed, so that the straightening roller is more adaptable to the diameter of the bar. Attached Figure Description
[0015] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0016] Figure 1 This is a schematic diagram of the external structure of this utility model; Figure 2 This is a side structural cross-sectional view of the precision calibration component of this utility model; Figure 3 for Figure 2 Enlarged schematic diagram of the structure at point A in the middle; Figure 4 This is a schematic diagram of the support component structure of this utility model; Figure 5 for Figure 4 Enlarged schematic diagram of the structure at point B.
[0017] In the diagram: 1. Frame body; 2. Fine calibration assembly; 21. Lead screw groove; 22. First motor; 23. Bidirectional lead screw; 24. Slider; 25. Connecting rod; 26. Straightening roller; 27. Adjusting groove; 28. Orienting rod; 29. First magnetic block; 210. Second magnetic block; 211. Third magnetic block; 212. Movable roller; 213. Connecting groove; 214. Sliding groove; 215. Lifting groove; 3. Support assembly; 31. Fixed block; 32. Sliding rod; 33. Support block; 34. Second motor; 35. Gear; 36. Rack; 37. Hinge block; 38. Connecting rod; 39. Support plate; 310. Positioning rod. Detailed Implementation The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.
[0018] Example 1 like Figures 1-3 As shown, this embodiment proposes a straightening machine for bar processing that prevents deviation, including a frame body 1, a precision alignment component 2 fixed inside the frame body 1, and a support component 3 fixed on the top of the frame body 1; The precision alignment component 2 includes a lead screw groove 21, a first motor 22 is fixed inside the lead screw groove 21, a bidirectional lead screw 23 is fixed at the output end of the first motor 22, a slider 24 is threaded onto the bidirectional lead screw 23, a connecting rod 25 is fixed on the side of the slider 24, and a straightening roller 26 is fixed at the other end of the connecting rod 25. The top of the frame body 1 is provided with an adjustment groove 27, and a guide rod 28 is fixed in the adjustment groove 27. The straightening roller 26 is slidably connected to the guide rod 28, so that the spacing of the straightening roller 26 in the frame body 1 can be adjusted. A connecting groove 213 is provided between the adjusting groove 27 and the lead screw groove 21. The connecting rod 25 slides in the connecting groove 213, so that the slider 24 can drive multiple sets of straightening rollers 26 to move synchronously. A first magnetic block 29 is fixed on the side of the adjusting groove 27 away from the straightening roller 26. A sliding groove 214 is opened inside the straightening roller 26. A second magnetic block 210 is slidably connected in the sliding groove 214. A lifting groove 215 is opened at the top of the sliding groove 214. A third magnetic block 211 is slidably connected in the lifting groove 215. A movable roller 212 is fixed at the top of the third magnetic block 211. When the straightening roller 26 moves toward the first magnetic block 29, the second magnetic block 210 in the straightening roller 26 slides in the opposite direction. This allows the diameter of the straightening roller 26 to be adjusted synchronously while the spacing of the straightening roller 26 is adjusted, thus adapting to bars of different diameters. The side of the second magnetic block 210 closest to the first magnetic block 29 repels the first magnetic block 29, and the side of the second magnetic block 210 closest to the third magnetic block 211 repels the third magnetic block 211. The magnetism at both ends of the second magnetic block 210 is the same, and the magnetism of the first magnetic block 29 and the third magnetic block 211 is the same, thus achieving the effect of opposite poles attracting and like poles repelling.
[0019] In this embodiment, when the spacing of the straightening rollers 26 needs to be adjusted according to the diameter of the bar to be straightened, the first motor 22 drives the bidirectional lead screw 23 to rotate inside the fixed block 31, causing the sliders 24 to move in opposite directions on the bidirectional lead screw 23. This causes the straightening rollers 26 to move in the directional rod 28 via the connecting rod 25, so that the distance between the straightening rollers 26 is moved to match the diameter of the bar. At the same time, when the straightening rollers 26 approach the first magnetic block 29, the second magnetic block 210 sliding inside the straightening roller 26 slides in the sliding groove 214 towards the lifting groove 215 through the principle of like poles repulsion. Then, the third magnetic block 211 moves upward in the lifting groove 215 through the principle of like poles repulsion, thereby causing the movable roller 212 to move upward. This allows the diameter of the straightening rollers 26 to change synchronously according to the diameter of the bar, thereby improving the straightening effect on the bar.
[0020] Example 2 like Figures 4-5 As shown, based on the same concept as Embodiment 1 above, this embodiment also proposes a support component 3 including a fixed block 31, a slide rod 32 fixed inside the fixed block 31, a support block 33 slidably connected in the slide rod 32, a second motor 34 fixed at the bottom of the support block 33, a gear 35 fixed at the output end of the second motor 34, a rack 36 meshing with both sides of the gear 35, a hinge block 37 fixed on the side of the rack 36 away from the gear 35, a connecting rod 38 hinged on the hinge block 37, and a support plate 39 hinged at the other end of the connecting rod 38; There are two sets of connecting rods 38, which are symmetrically distributed on both sides of the gear 35. Each set of connecting rods 38 has two rods. A fixed rod is rotatably connected to the middle of the connecting rods 38. The fixed rod is located at the center between the two connecting rods 38. The arrangement of the two sets of connecting rods 38 makes the support plate 39 more stable during the lifting process. The bottom of the support block 33 is fixed with a positioning rod 310, and the bottom of the hinge block 37 is slidably connected to the positioning rod 310. The positioning rod 310 prevents the bottom of the hinge block 37 from shifting when it moves.
[0021] In this embodiment, when the diameter of the bar changes, the second motor 34 can drive the gear 35 to rotate, so that the rack 36 meshes with the gear 35, thereby driving the hinge block 37 to move. The support plate 39 is hinged to the hinge block 37 through the connecting rod 38, so that the support plate 39 can be raised and lowered, thereby providing stable support for the bar and preventing other bends from occurring during the bar straightening process, thus avoiding increasing the straightening workload.
[0022] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A straightening machine for processing bar stock to prevent deviation, characterized in that, Includes a frame body (1), inside which a calibration component (2) is fixed, and on the top of the frame body (1) a support component (3). The precision alignment component (2) includes a lead screw groove (21), a first motor (22) is fixed inside the lead screw groove (21), a bidirectional lead screw (23) is fixed at the output end of the first motor (22), a slider (24) is threaded onto the bidirectional lead screw (23), a connecting rod (25) is fixed on the side of the slider (24), and a straightening roller (26) is fixed at the other end of the connecting rod (25).
2. The straightening machine for bar processing with anti-deviation function according to claim 1, characterized in that, The top of the frame body (1) is provided with an adjustment groove (27), and a guide rod (28) is fixed in the adjustment groove (27). The straightening roller (26) is slidably connected to the guide rod (28).
3. A straightening machine for bar processing with anti-deviation feature according to claim 2, characterized in that, A connecting groove (213) is provided between the adjusting groove (27) and the lead screw groove (21).
4. A straightening machine for bar processing with anti-deviation feature according to claim 2, characterized in that, A first magnetic block (29) is fixed on the side of the adjusting groove (27) away from the straightening roller (26). A sliding groove (214) is provided inside the straightening roller (26). A second magnetic block (210) is slidably connected in the sliding groove (214). A lifting groove (215) is provided at the top of the sliding groove (214). A third magnetic block (211) is slidably connected in the lifting groove (215). A movable roller (212) is fixed at the top of the third magnetic block (211).
5. A straightening machine for anti-deviation bar processing according to claim 4, characterized in that, The second magnetic block (210) repels the first magnetic block (29) on the side closer to the first magnetic block (29), and the second magnetic block (210) repels the third magnetic block (211) on the side closer to the third magnetic block (211).
6. A straightening machine for anti-deviation bar processing according to claim 1, characterized in that, The support assembly (3) includes a fixed block (31), a slide rod (32) is fixed inside the fixed block (31), a support block (33) is slidably connected in the slide rod (32), a second motor (34) is fixed at the bottom of the support block (33), a gear (35) is fixed at the output end of the second motor (34), a rack (36) is meshed on both sides of the gear (35), a hinge block (37) is fixed on the side of the rack (36) away from the gear (35), a connecting rod (38) is hinged on the hinge block (37), and a support plate (39) is hinged at the other end of the connecting rod (38).
7. A straightening machine for bar processing with anti-deviation capability according to claim 6, characterized in that, The connecting rod (38) is provided in two sets, and the two sets of connecting rods (38) are symmetrically distributed on both sides of the gear (35). Each set of connecting rods (38) has two rods, and a fixed rod is rotatably connected to the middle of the connecting rod (38).
8. A straightening machine for anti-deviation bar processing according to claim 6, characterized in that, The bottom of the support block (33) is fixed with a positioning rod (310), and the bottom of the hinge block (37) is slidably connected to the positioning rod (310).