A steel bar cutting device
By using cylinder-driven locking and limiting components and top positioning components, the problem of time-consuming and laborious manual adjustment in steel bar cutting is solved, achieving automatic positioning and stabilization, and improving cutting efficiency and accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YANCHENG DINGHANG PRECISION MASCH MFG CO LTD
- Filing Date
- 2025-07-08
- Publication Date
- 2026-07-07
AI Technical Summary
In existing technologies, the position and angle of steel bars need to be constantly adjusted manually during the cutting process, which is time-consuming, labor-intensive, and has low cutting efficiency.
The cutting tool is driven by a linear reciprocating power output from a cylinder. At the same time, the steel bar is stably fixed by a locking assembly and a limiting assembly, including the cooperation of a chuck, a limiting post, a telescopic post and a spring. Combined with the upper and lower clamping of the top positioning assembly, the stability and accuracy of the steel bar during the cutting process are ensured.
It achieves automatic positioning and stabilization of the steel bar during the cutting process, improving cutting efficiency and accuracy, avoiding frequent manual adjustments, and enhancing safety and the stability of the cutting platform.
Smart Images

Figure CN224463831U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of steel cutting technology, and in particular to a steel bar cutting device. Background Technology
[0002] Steel bars are long strips of steel with specific shapes and sizes, made primarily of iron with added carbon and other alloying elements, through processes such as smelting, rolling, or forging. They are widely used in various fields such as construction, machinery manufacturing, automobile manufacturing, and aerospace.
[0003] In actual operation, workers need to constantly manually adjust the position and angle of the steel bar in order to carry out precise cutting operations. This continuous manual adjustment work is both time-consuming and labor-intensive.
[0004] Therefore, this utility model provides a steel bar cutting device. Utility Model Content
[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a steel bar cutting device.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a steel bar cutting device, including a cutting platform, an extension disc and a side disc, and a locking assembly. The locking assembly includes a vertical plate slidably connected to the extension disc, a chuck slidably connected to the outer side of the top of the vertical plate, a limit post fixedly connected to one end of the chuck, a telescopic post slidably connected to the end of the limit post near the chuck, a spring sleeved on the outer side of the telescopic post, and a spring fixedly connected to the end of the telescopic post away from the limit post.
[0007] The limiting component includes a groove formed inside an extension plate. A first sliding plate is slidably connected to the bottom end of the extension plate. A groove is formed at the bottom end of the first sliding plate. A nut is provided inside the groove. A bolt is threaded into the nut.
[0008] The side plate is slidably connected to a top positioning component.
[0009] In a preferred embodiment, the top positioning assembly includes a second sliding plate slidably connected to the side plate, a vertical plate fixedly connected to the top of the second sliding plate, and a top plate fixedly connected to the interior of the vertical plate.
[0010] In a preferred embodiment, the top plate is rotatably connected to a threaded column, and a movable column is threadedly connected to the outer side of the threaded column. Both ends of the movable column are fixedly connected to connecting plates.
[0011] In a preferred embodiment, a top cover is fixedly connected to the end of the connecting plate away from the moving column, and a throttle is fixedly connected to the top of the threaded column.
[0012] In a preferred embodiment, the outer side of the threaded post is threaded with a reverse nut, the bottom end of which engages with the top end of the threaded post.
[0013] In a preferred embodiment, the second slide plate has an internal threaded connection to a positioning screw, and the external thread of the positioning screw is connected to the inner wall of the side plate.
[0014] In a preferred embodiment, a mounting plate is fixedly connected to the top of the cutting platform, a cylinder is installed inside the mounting plate, and a bottom support block is fixedly connected to the top of the cutting platform.
[0015] In a preferred embodiment, one end of the spring is fixedly connected to the chuck, and the other end of the spring is fixedly connected to the chuck post.
[0016] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0017] 1. The cylinder outputs linear reciprocating power to drive the cutter to cut the steel bar. At the same time, it pushes the chuck to slide vertically on the vertical plate, so that the limit post moves synchronously. The steel bar squeezes the telescopic post to compress the spring and generate clamping force. This design achieves stable fixation of the steel bar in the clamping assembly, eliminating the need for continuous manual adjustment of position and angle, and improving cutting efficiency.
[0018] 2. When adjusting the position of the extension plate, slide the first slide plate along the slide groove to move the extension plate horizontally to the target position, and tighten the bolts to lock the position; loosen the positioning screws and slide the second slide plate to adjust the height, and turn the handle to drive the top cover to press the top of the steel bar. This design achieves the effect of clamping from both the top and bottom, thereby further ensuring the stable positioning of the steel bar, thus avoiding frequent manual adjustments, improving the accuracy and safety of the cutting operation, and effectively preventing the cutting platform from deforming due to uneven force. Attached Figure Description
[0019] Figure 1 A perspective view of a steel bar cutting device provided by this utility model;
[0020] Figure 2 A schematic diagram of the limiting component structure of a steel bar cutting device provided by this utility model;
[0021] Figure 3 for Figure 1 Enlarged view of point A in the image;
[0022] Figure 4 A schematic diagram of the engaging assembly structure of a steel bar cutting device provided by this utility model;
[0023] Figure 5 A schematic diagram of the telescopic column structure of a steel bar cutting device provided by this utility model.
[0024] Legend:
[0025] 1. Cutting platform; 2. Extension tray; 3. Side tray;
[0026] 4. Engaging assembly; 41. Vertical plate; 42. Chuck; 43. Limiting post; 44. Telescopic post; 45. Locking post; 46. Spring;
[0027] 5. Limiting component; 51. Slide groove; 52. First slide plate; 53. Groove; 54. Nut; 55. Bolt;
[0028] 6. Top positioning assembly; 61. Second slide plate; 62. Vertical plate; 63. Top plate; 64. Threaded post; 65. Moving post; 66. Connecting plate; 67. Thruster; 68. Reverse nut; 69. Top cover; 610. Positioning screw;
[0029] 7. Mounting plate; 8. Cylinder; 9. Bottom support block. Detailed Implementation
[0030] 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.
[0031] like Figure 1 As shown, this embodiment provides a technical solution: a steel bar cutting device, including a cutting platform 1, an extension plate 2 and a side plate 3, a mounting plate 7 is fixedly connected to the top of the cutting platform 1, a cylinder 8 is installed inside the mounting plate 7, and a bottom support block 9 is fixedly connected to the top of the cutting platform 1.
[0032] Mounting plate 7 serves as the mounting carrier for cylinder 8, fixing the position of cylinder 8, ensuring its power output direction, realizing the pushing of the steel rod, thereby achieving the positioning purpose, supporting the top structure of cutting platform 1, sharing the vertical load when the device is working, and preventing the cutting platform 1 from deforming due to uneven force. Bottom support block 9 is a component fixedly connected to the cutting platform 1, providing bottom support for the workpiece.
[0033] like Figure 3 , Figure 4 and Figure 5As shown, it also includes a locking assembly 4, which includes a vertical plate 41 slidably connected to the extension plate 2. A chuck 42 is slidably connected to the outer side of the top of the vertical plate 41. A limit post 43 is fixedly connected to one end of the chuck 42. A telescopic post 44 is slidably connected to the end of the limit post 43 near the chuck 42. A spring 46 is sleeved on the outer side of the telescopic post 44. A spring 46 is fixedly connected to the end of the telescopic post 44 away from the limit post 43. One end of the spring 46 is fixedly connected to the chuck 42, and the other end of the spring 46 is fixedly connected to the locking post 45.
[0034] The upright plate 41 is vertically mounted on the extension plate 2, providing a sliding guide for the chuck 42, limiting its lateral displacement, and ensuring that the clamping action is performed accurately in the vertical direction. The chuck 42 directly contacts the steel bar and clamps the steel bar through the cooperation of the limiting post 43 and the telescopic post 44 to prevent the steel bar from shaking during cutting. The limiting post 43 fixes the sliding direction of the telescopic post 44 to prevent it from deviating during clamping. At the same time, it serves as the connecting medium between the chuck 42 and the telescopic post 44. The telescopic post 44 can elastically extend and retract under the action of the spring 46. The clamping post 45 directly abuts against the surface of the steel bar, achieving adaptive clamping through elastic force. The spring 46 provides the telescopic post 44 with a reset elastic force and clamping force. When clamping the steel bar, it generates a continuous clamping force through compression deformation. When releasing, it pushes the telescopic post 44 to reset.
[0035] like Figure 1 , Figure 2 and Figure 4 As shown, the limiting component 5 includes a groove 51 opened inside the extension plate 2. The bottom end of the extension plate 2 is slidably connected to a first slide plate 52. The bottom end of the first slide plate 52 is provided with a groove 53. A nut 54 is provided inside the groove 53. A bolt 55 is threaded inside the nut 54.
[0036] The groove 51 is formed inside the extension plate 2 to provide a sliding track for the first slide plate 52, restricting its movement direction and ensuring that the position adjustment of the extension plate 2 is carried out along the preset track. The bottom end of the first slide plate 52 is slidably connected to the extension plate 2, and the top end is engaged with the nut 54 through the groove 53 to lock the position of the extension plate 2 in the horizontal direction. The bolt 55 passes through the groove 53 and is threadedly connected to the nut 54. When the bolt 55 is tightened, the first slide plate 52 can be pressed against the bottom end of the extension plate 2 to achieve position locking.
[0037] like Figure 1 and Figure 3As shown, a top positioning assembly 6 is slidably connected to the outer side of the side plate 3. The top positioning assembly 6 includes a second sliding plate 61 slidably connected to the side plate 3. A vertical plate 62 is fixedly connected to the top of the second sliding plate 61. A top plate 63 is fixedly connected inside the vertical plate 62. A threaded column 64 is rotatably connected inside the top plate 63. A movable column 65 is threadedly connected to the outer side of the threaded column 64. A connecting plate 66 is fixedly connected to both ends of the movable column 65. A top cover 69 is fixedly connected to the end of the connecting plate 66 away from the movable column 65. A throttle 67 is fixedly connected to the top of the threaded column 64. A reverse nut 68 is threadedly connected to the outer side of the threaded column 64. The bottom end of the reverse nut 68 engages with the top end of the threaded column 64. A positioning screw 610 is threadedly connected inside the second sliding plate 61. The outer side of the positioning screw 610 is threadedly connected to the inner wall of the side plate 3.
[0038] The second slide plate 61 slides along the side plate 3. The vertical position is locked by the threaded connection between the positioning screw 610 and the inner wall of the side plate 3. This is used to adjust the height of the top positioning structure. The vertical plate 62 is fixed to the top of the second slide plate 61 and supports the top plate 63, forming the frame of the top positioning structure. This provides the installation base for the threaded column 64 and the moving column 65. Rotating the handle 67 drives the threaded column 64 to rotate, and the moving column 65 moves vertically through the threaded transmission. The reverse nut 68 engages with the top of the threaded column 64 to prevent the threaded column 64 from loosening due to vibration. The top cover 69 contacts the top of the steel bar and, together with the engaging assembly 4, forms a two-way clamping mechanism to prevent the steel bar from undergoing axial or radial displacement during cutting, further improving the stability and accuracy of the cutting process.
[0039] like Figure 1 - Figure 5 As shown:
[0040] In use: First, start cylinder 8, which outputs linear reciprocating power to drive the cutter to cut the steel bar. The power transmission from cylinder 8 achieves the pushing and positioning of the steel bar. Then, the steel bar pushes the chuck 42 vertically onto the upright plate 41, causing the limiting post 43 to move synchronously. This causes the telescopic post 44 to be compressed by the steel bar, compressing the spring 46. The elastic deformation of the spring 46 generates clamping force, achieving a stable fixation of the steel bar in the locking assembly 4. When adjusting the position of the extension plate 2, first slide the first slide plate 52 along the slide groove 51, then move the extension plate 2 horizontally to the target position. Tightening the bolt 55 engages it with the nut 54, pressing the first slide plate 52 firmly against the bottom of the extension plate 2, achieving precise locking of the extension plate 2. Then, loosen the positioning screw 610 and slide the second sliding plate 61 up and down. This will then adjust the height of the vertical plate 62 and the top plate 63. By turning the handle 67, the threaded column 64 can be rotated, which will drive the moving column 65 to press the top cover 69 against the top of the steel bar through the connecting plate 66, achieving a stable positioning effect of clamping the steel bar in both directions. The bottom support block 9 is fixedly connected to the top of the cutting platform 1. It firstly distributes the vertical load when the device is working, and then prevents the cutting platform 1 from deforming due to uneven force.
[0041] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A steel bar cutting device, comprising a cutting platform (1), an extension disc (2), and a side disc (3), characterized in that, It also includes a locking assembly (4), which includes a vertical plate (41) slidably connected to the extension plate (2), a chuck (42) slidably connected to the outer side of the top of the vertical plate (41), a limiting post (43) fixedly connected to one end of the chuck (42), a telescopic post (44) slidably connected to the end of the limiting post (43) near the chuck (42), a spring (46) sleeved on the outer side of the telescopic post (44), and a spring (46) fixedly connected to the end of the telescopic post (44) away from the limiting post (43). The limiting component (5) includes a groove (51) opened inside the extension plate (2). The bottom end of the extension plate (2) is slidably connected to a first slide plate (52). The bottom end of the first slide plate (52) is provided with a groove (53). A nut (54) is provided inside the groove (53). A bolt (55) is threaded inside the nut (54). The side plate (3) is slidably connected to a top positioning component (6).
2. The steel bar cutting device according to claim 1, characterized in that: The top positioning component (6) includes a second slide plate (61) slidably connected to the side plate (3), a vertical plate (62) is fixedly connected to the top of the second slide plate (61), and a top plate (63) is fixedly connected inside the vertical plate (62).
3. The steel bar cutting device according to claim 2, characterized in that: The top plate (63) is rotatably connected to a threaded column (64), and a movable column (65) is threadedly connected to the outside of the threaded column (64). Both ends of the movable column (65) are fixedly connected to a connecting plate (66).
4. The steel bar cutting device according to claim 3, characterized in that: The end of the connecting plate (66) away from the moving column (65) is fixedly connected to a top cover (69), and the top of the threaded column (64) is fixedly connected to a throttle (67).
5. A steel bar cutting device according to claim 3, characterized in that: The outer thread of the threaded post (64) is connected to a reverse nut (68), the bottom end of which engages with the top end of the threaded post (64).
6. A steel bar cutting device according to claim 2, characterized in that: The second slide plate (61) has an internal threaded connection to a positioning screw (610), and the external thread of the positioning screw (610) is connected to the inner wall of the side plate (3).
7. The steel bar cutting device according to claim 1, characterized in that: The top of the cutting platform (1) is fixedly connected to a mounting plate (7), and a cylinder (8) is installed inside the mounting plate (7). The top of the cutting platform (1) is fixedly connected to a bottom support block (9).
8. A steel bar cutting device according to claim 1, characterized in that: One end of the spring (46) is fixedly connected to the chuck (42), and the other end of the spring (46) is fixedly connected to the chuck (45).