A cutting machine for cutting bolts

By combining a three-point clamping structure with a vertical cutting component, the problem of unstable bolt fixing in traditional cutting machines is solved, achieving high-precision and high-efficiency bolt cutting, and improving the service life and operational safety of the equipment.

CN224526568UActive Publication Date: 2026-07-21JIANGSU BINSHENG PETROCHEM MACHINERY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU BINSHENG PETROCHEM MACHINERY
Filing Date
2025-07-25
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Traditional bolt cutting machines often have a fixing method that can easily cause bolts to loosen, affecting cutting accuracy and efficiency.

Method used

It adopts a three-point clamping structure, and drives the rack and gear ring to rotate the turntable through the engagement of the electric hydraulic cylinder, forming a uniform clamping. Combined with the self-locking electric hydraulic cylinder driving the mounting plate to drive the cutting machine to cut vertically, it enhances the fixing effect.

Benefits of technology

It improves the precision and efficiency of bolt cutting, prevents bolts from loosening, ensures a smooth cut surface, protects operator safety, and extends equipment life.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224526568U_ABST
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Abstract

The utility model relates to bolt processing technical field, and disclose a kind of cutting machine of bolt convenient to fix, including workbench, fixed mechanism is provided on the workbench, cutting assembly is provided on the workbench;The fixed mechanism includes: fixed disc, electric hydraulic cylinder one, the fixed disc is connected in the top of workbench, the inner wall sliding connection of fixed disc has carousel, the outer wall of carousel is equipped with mounting hole, the inner wall of mounting hole is hinged to limit sleeve.The utility model drives rack to move by starting electric hydraulic cylinder one, rack and gear ring meshing drive carousel rotation, make three groups of clamping arm through limit sleeve guide, rotate around hinged point and gather to center synchronously, clamp block on clamping arm clamps bolt, form three-point clamping structure, ensure that bolt stress is uniform, avoid the bolt inclination caused by unilateral clamping, improve cutting precision, and avoid the problem of low efficiency of manual fixing, improve work efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of bolt processing technology, specifically a bolt cutting machine that facilitates bolt fixing. Background Technology

[0002] Bolts are commonly used to connect and secure various mechanical parts and structures. Therefore, during processing and installation, bolts often need to be cut according to actual needs to ensure that their length meets the requirements.

[0003] Traditional bolt cutting machines typically use simple clamps or manual fixing methods when cutting bolts. These fixing methods are prone to bolt loosening due to vibration or external forces during the cutting process, affecting cutting accuracy and quality. Therefore, a bolt cutting machine that facilitates bolt fixing is proposed to solve the above-mentioned problems. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a cutting machine that facilitates fixing bolts, addressing the shortcomings of the prior art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a cutting machine that facilitates fixing bolts, including a worktable, a fixing mechanism provided on the worktable, and a cutting component provided on the worktable;

[0006] The fixing mechanism includes: a fixing plate and an electric hydraulic cylinder. The fixing plate is connected to the top of the workbench. A turntable is slidably connected to the inner wall of the fixing plate. The outer wall of the turntable has a mounting hole. A limit sleeve is hinged to the inner wall of the mounting hole. A clamping arm is hinged to the right side of the fixing plate. The clamping arm passes through the mounting hole and extends into the inner cavity of the turntable. The outer wall of the clamping arm is slidably connected to the limit sleeve. A clamping block is connected to one end of the clamping arm located in the inner cavity of the turntable. A toothed ring is fixedly sleeved on the outer wall of the turntable. The electric hydraulic cylinder... The electric hydraulic cylinder is connected to the top of the workbench via a bracket. It is a self-locking type, and the piston end of the electric hydraulic cylinder is connected to a rack. By starting the electric hydraulic cylinder, the rack is pushed to move. The rack meshes with the gear ring, which drives the turntable to rotate. This causes the three sets of clamping arms to be guided by the limit sleeves and rotate around the hinge point to synchronously retract towards the center. The clamping blocks on the clamping arms clamp the bolts, forming a three-point clamping structure. This ensures that the bolts are subjected to uniform force, avoids bolt tilting caused by clamping on one side, improves cutting accuracy, and avoids the problem of low efficiency in manual fixing, thus improving work efficiency.

[0007] Preferably, there are three sets of mounting holes, limiting sleeves, clamping arms, and clamping blocks, which are circumferentially arranged at equal intervals on the turntable. When the turntable rotates, the three sets of clamping blocks move towards the center synchronously to form a stable triangular clamping structure, which evenly fixes the bolts, effectively resists vibration during cutting, prevents the bolts from loosening, and ensures a flat cutting surface.

[0008] Preferably, the gear ring, the first electric hydraulic cylinder, and the rack are all located on the left side of the fixed plate, and the rack meshes with the gear ring. The first electric hydraulic cylinder pushes the rack to move linearly, which drives the gear ring to rotate, thereby causing the turntable to rotate within the fixed plate, thus realizing the radial adjustment of the clamping arm.

[0009] Preferably, the cutting assembly includes: a gantry frame connected to the top of the workbench, an electric hydraulic cylinder two connected to the top of the gantry frame via a bracket, the electric hydraulic cylinder two being self-locking, the piston end of the electric hydraulic cylinder two penetrating the gantry frame and connected to a mounting plate, and a cutting machine connected to the bottom of the mounting plate. By activating the electric hydraulic cylinder two, the mounting plate is driven to move the cutting machine up and down, thereby achieving vertical cutting of the bolt and improving processing accuracy.

[0010] Preferably, the mounting plate is provided with a protective mechanism, which includes: a protective plate connected to the bottom of the mounting plate, a baffle slidably connected to the inner cavity of the protective plate, and a spring connected between the top of the baffle and the protective plate. During cutting, the baffle is pressed tightly against the worktable surface under the action of the spring. As the mounting plate moves down, the spring is compressed, so that the baffle and the protective plate form a protective enclosure around the cutting area, blocking the flying debris generated during cutting, protecting the operator's safety, reducing the contamination of the equipment by debris, and extending the service life of the equipment.

[0011] Preferably, there are two sets of protective mechanisms, which are arranged opposite each other at the bottom of the mounting plate. During cutting, the debris is blocked from both sides at the same time, forming a full-enclosed protection and enhancing the protective effect.

[0012] The present invention adopts the above technical solution, which can bring the following beneficial effects:

[0013] 1. This bolt-fixing cutting machine, by starting an electric hydraulic cylinder, pushes the rack to move. The rack meshes with the gear ring, driving the turntable to rotate. This causes the three sets of clamping arms to be guided by the limit sleeves and rotate around the hinge point to synchronously retract towards the center. The clamping blocks on the clamping arms clamp the bolt, forming a three-point clamping structure. This ensures that the bolt is subjected to uniform force, avoids bolt tilting caused by clamping on one side, improves cutting accuracy, and avoids the problem of low efficiency in manual fixing, thus improving work efficiency.

[0014] 2. This type of cutting machine, which facilitates the fixing of bolts, has a baffle that adheres tightly to the worktable surface under the action of a spring during cutting. As the mounting plate moves down, the spring is compressed, so that the baffle and protective plate form a protective enclosure around the cutting area, blocking the flying debris generated during cutting, protecting the operator's safety, reducing the contamination of the equipment by debris, and extending the service life of the equipment. Attached Figure Description

[0015] Figure 1This is a schematic diagram of the front structure of this utility model;

[0016] Figure 2 This is a right-side sectional view of the present invention;

[0017] Figure 3 This is a right view of the fixing mechanism of this utility model;

[0018] Figure 4 This is a left-side cross-sectional view of the present invention.

[0019] In the diagram: 1. Workbench; 2. Fixing mechanism; 21. Fixing plate; 22. Turntable; 23. Mounting hole; 24. Limit sleeve; 25. Clamping arm; 26. Clamping block; 27. Gear ring; 28. Electric hydraulic cylinder one; 29. ​​Rack; 3. Cutting assembly; 31. Gantry frame; 32. Electric hydraulic cylinder two; 33. Mounting plate; 34. Cutting machine; 4. Protective mechanism; 41. Protective plate; 42. Baffle; 43. Spring. Detailed Implementation

[0020] 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.

[0021] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "several" means two or more, unless otherwise explicitly specified.

[0024] Please see Figure 1-4 One embodiment of this utility model is: a cutting machine for easy fixing of bolts, including a worktable 1, a fixing mechanism 2 provided on the worktable 1, and a cutting assembly 3 provided on the worktable 1; the fixing mechanism 2 includes: a fixing plate 21 and an electric hydraulic cylinder 28, the fixing plate 21 is connected to the top of the worktable 1, a turntable 22 is slidably connected to the inner wall of the fixing plate 21, the outer wall of the turntable 22 has a mounting hole 23, the inner wall of the mounting hole 23 is hinged to a limit sleeve 24, and a clamping arm 25 is hinged to the right side of the fixing plate 21. The clamping arm 25 passes through the mounting hole 23 and extends into the inner cavity of the turntable 22. The outer wall of the clamping arm 25 is slidably connected to the limiting sleeve 24. A clamping block 26 is connected to one end of the clamping arm 25 located in the inner cavity of the turntable 22. There are three sets of mounting holes 23, limiting sleeves 24, clamping arms 25, and clamping blocks 26, which are evenly spaced and circumferentially arranged on the turntable 22. When the turntable 22 rotates, the three sets of clamping blocks 26 move towards the center synchronously, forming a stable triangular clamping structure that evenly fixes the bolts. This effectively resists vibration during cutting and prevents bolts from being damaged. To ensure a smooth cutting surface, the turntable 22 is fixedly fitted with a gear ring 27 on its outer wall. An electric hydraulic cylinder 28 is connected to the top of the worktable 1 via a bracket. The electric hydraulic cylinder 28 is self-locking, and a rack 29 is connected to its piston end. The gear ring 27, electric hydraulic cylinder 28, and rack 29 are all located on the left side of the fixed plate 21, with the rack 29 meshing with the gear ring 27. The electric hydraulic cylinder 28 pushes the rack 29 to move linearly, causing the gear ring 27 to rotate, thus making the turntable 22 rotate on the fixed plate. The inner rotation of 21 enables radial adjustment of the clamping arm 25. By activating the electric hydraulic cylinder 28, the rack 29 is moved. The rack 29 meshes with the gear ring 27, causing the turntable 22 to rotate. This causes the three clamping arms 25 to be guided by the limit sleeve 24 and rotate around the hinge point to synchronously retract towards the center. The clamping blocks 26 on the clamping arm 25 clamp the bolt, forming a three-point clamping structure. This ensures that the bolt is subjected to uniform force, avoids bolt tilting caused by clamping on one side, improves cutting accuracy, and avoids the problem of low efficiency in manual fixing, thus improving work efficiency.

[0025] The cutting assembly 3 includes a gantry frame 31, which is connected to the top of the workbench 1. An electric hydraulic cylinder 32 is connected to the top of the gantry frame 31 via a bracket. The electric hydraulic cylinder 32 is self-locking. The piston end of the electric hydraulic cylinder 32 passes through the gantry frame 31 and is connected to a mounting plate 33. A cutting machine 34 is connected to the bottom of the mounting plate 33. By starting the electric hydraulic cylinder 32, the mounting plate 33 is driven to move the cutting machine 34 up and down, thereby achieving vertical cutting of the bolt and improving processing accuracy.

[0026] Working principle: The bolt is placed in the inner cavity of the turntable 22. The electric hydraulic cylinder 28 is activated to push the rack 29 to move. The rack 29 meshes with the gear ring 27 to drive the turntable 22 to rotate. The three sets of clamping arms 25 are guided by the limit sleeve 24 and rotate around the hinge point to synchronously retract towards the center. The clamping blocks 26 on the clamping arms 25 clamp the bolt to form a three-point clamping structure to ensure that the bolt is subjected to uniform force. The electric hydraulic cylinder 32 is activated to drive the mounting plate 33 to drive the cutting machine 34 to move up and down to achieve vertical cutting of the bolt.

[0027] Please see Figure 1-4 Based on the above embodiments, in another embodiment of this utility model, a protective mechanism 4 is provided on the mounting plate 33. The protective mechanism 4 includes: a protective plate 41, which is connected to the bottom of the mounting plate 33. A baffle 42 is slidably connected to the inner cavity of the protective plate 41. A spring 43 is connected between the top of the baffle 42 and the protective plate 41. During cutting, the baffle 42 is pressed against the surface of the workbench 1 under the action of the spring 43. As the mounting plate 33 moves down, the spring 43 is compressed, so that the baffle 42 and the protective plate 41 form a surrounding protection for the cutting area, blocking the flying debris generated during cutting, protecting the safety of the operator, reducing the pollution of the equipment by the debris, and extending the service life of the equipment. There are two sets of protective mechanisms 4. The two sets of protective mechanisms 4 are arranged opposite to each other at the bottom of the mounting plate 33. During cutting, the debris is blocked from both sides at the same time, forming a full-enclosed protection and enhancing the protective effect.

[0028] Working principle: During cutting, the baffle 42 is pressed tightly against the surface of the worktable 1 under the action of the spring 43. As the mounting plate 33 moves down, the spring 43 is compressed, so that the baffle 42 and the protective plate 41 form a protective enclosure around the cutting area, blocking the flying debris generated during cutting and protecting the safety of the operator.

[0029] It is worth noting that the electric hydraulic cylinder 28, electric hydraulic cylinder 32, and cutting machine 34 in the above embodiments are all commonly used equipment in the prior art. The models used can be customized according to actual usage requirements. In addition, the power supply interface of the electrical equipment in this utility model is connected to the power supply system through a switch (not shown in the figure) and a wire (not shown in the figure) to realize its control. The circuit control, specific composition and principle involved are all prior art, which are known in the current field and are clear to those skilled in the art. Therefore, they will not be described in detail here.

[0030] This utility model provides a cutting machine that facilitates the fixing of bolts. There are many methods and approaches to implement this technical solution. The above description is only a preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model. All components not explicitly stated in this embodiment can be implemented using existing technology.

Claims

1. A cutting machine for easy fixing of bolts, comprising a worktable (1), characterized in that: A fixing mechanism (2) is provided on the workbench (1), and a cutting assembly (3) is provided on the workbench (1). The fixing mechanism (2) includes: a fixing plate (21) and an electric hydraulic cylinder (28). The fixing plate (21) is connected to the top of the workbench (1). A turntable (22) is slidably connected to the inner wall of the fixing plate (21). An installation hole (23) is provided on the outer wall of the turntable (22). A limit sleeve (24) is hinged to the inner wall of the installation hole (23). A clamping arm (25) is hinged to the right side of the fixing plate (21). The clamping arm (25) passes through... The mounting hole (23) extends into the inner cavity of the turntable (22), and the outer wall of the clamping arm (25) is slidably connected to the limiting sleeve (24). The clamping arm (25) is connected to a clamping block (26) at one end of the inner cavity of the turntable (22). The outer wall of the turntable (22) is fixedly fitted with a toothed ring (27). The first electric hydraulic cylinder (28) is connected to the top of the workbench (1) through a bracket. The piston end of the first electric hydraulic cylinder (28) is connected to a rack (29).

2. The cutting machine for easy fixing of bolts according to claim 1, characterized in that: The number of mounting holes (23), limiting sleeves (24), clamping arms (25), and clamping blocks (26) are all three sets, and they are arranged in equal intervals on the turntable (22).

3. A cutting machine for easy fixing of bolts according to claim 1, characterized in that: The gear ring (27), electric hydraulic cylinder 1 (28), and rack (29) are all located on the left side of the fixed plate (21), and the rack (29) meshes with the gear ring (27).

4. A cutting machine for easy fixing of bolts according to claim 1, characterized in that: The cutting assembly (3) includes: a gantry (31) connected to the top of the workbench (1), the top of the gantry (31) being connected to an electric hydraulic cylinder (32) via a bracket, the piston end of the electric hydraulic cylinder (32) passing through the gantry (31) and connected to a mounting plate (33), and the bottom of the mounting plate (33) being connected to a cutting machine (34).

5. A cutting machine for easy fixing of bolts according to claim 4, characterized in that: The mounting plate (33) is provided with a protective mechanism (4), which includes a protective plate (41), the protective plate (41) being connected to the bottom of the mounting plate (33), a baffle (42) being slidably connected to the inner cavity of the protective plate (41), and a spring (43) being connected between the top of the baffle (42) and the protective plate (41).

6. A cutting machine for easy fixing of bolts according to claim 5, characterized in that: There are two sets of the protective mechanism (4), and the two sets of the protective mechanism (4) are arranged opposite to each other at the bottom of the mounting plate (33).