Clamping device for high-strength bolt machining
By designing a clamping device with a sliding adjustable limit seat and scale bar, the problem of insufficient applicability of existing clamping devices is solved, enabling efficient processing of bolts of different diameters with flexible clamping, thereby improving production efficiency and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 浙江强达紧固件股份有限公司
- Filing Date
- 2025-05-27
- Publication Date
- 2026-05-01
AI Technical Summary
Existing clamping devices have fixed clamping component specifications, which cannot be applied to bolts of different diameters, resulting in low applicability and the need for frequent replacement of clamping components.
A sliding adjustable limit seat and a positioning frame with scale strips were designed. Combined with a magnetic structure and a servo motor, the spacing between the clamping rods can be flexibly adjusted. Cylindrical clamping rods and anti-slip textures are used to improve clamping stability.
This eliminates the need for frequent changes to the clamping components, expands the applicability of the clamping device, reduces production costs, simplifies the operation process, and ensures machining accuracy and efficiency.
Smart Images

Figure CN224182605U_ABST
Abstract
Description
A clamping device for machining high-strength bolts Technical Field
[0001] This utility model relates to the field of bolt processing equipment technology, specifically a clamping device for processing high-strength bolts. Background Technology
[0002] High-strength bolts, as a basic mechanical part, play a key role in many fields due to their reliable connection performance and are widely used. During the processing of high-strength bolts, they need to be clamped by a clamping device.
[0003] Existing clamping devices have fixed clamping parts, which cannot be used for bolts of different diameters. When processing bolts of different diameters, the clamping parts need to be replaced, resulting in low applicability. Summary of the Invention
[0004] To address the shortcomings of existing technologies, this utility model provides a clamping device for processing high-strength bolts.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a clamping device for processing high-strength bolts, including a processing table, wherein a base is provided at the upper end of the processing table;
[0006] The upper end of the processing table is symmetrically provided with two sliding grooves and a slider. The slider is inserted into the sliding groove and is slidably connected to the sliding groove. The upper and lower ends of the slider are symmetrically provided with two limiting plates. The two limiting plates are located at the upper and lower ends of the processing table, respectively, and the limiting plates are slidably connected to the processing table. The upper end of the limiting plate above the processing table is provided with a positioning frame. The top of the positioning frame is symmetrically provided with two limiting seats. The limiting seats are provided with cavities through which the positioning frame passes. The outer wall of the positioning frame is provided with a scale strip. One side of the limiting seat is provided with a locking rod. The locking rod passes through the limiting seat and presses against the positioning frame. The locking rod is threadedly connected to the limiting seat. The other side of the limiting seat is provided with a clamping rod.
[0007] The limiting plate under the processing table has a base frame at its lower end. The processing table has a motor at its lower end, and a fixed seat is located below the motor. The output end of the motor has a second threaded rod that passes through the fixed seat. The second threaded rod is threadedly connected to the fixed seat. Two connecting rods are symmetrically arranged on both sides of the fixed seat. The bottom end of the connecting rod is hinged to one side of the fixed seat, and the top end of the connecting rod is hinged to the base frame.
[0008] To facilitate clamping of bolt blanks, the present invention features an improvement in that the base adopts a magnetic suction structure.
[0009] To facilitate base replacement, the present invention includes an improvement whereby the lower end of the base is provided with a first threaded rod that is screwed into the processing table, and the first threaded rod is threadedly connected to the processing table.
[0010] To improve the smoothness of the slider's movement, the present invention includes an improvement where multiple ball bearings that contact the processing table are rotatably arranged on the side of the limiting plate closest to the processing table.
[0011] Furthermore, an improvement of this utility model is that all of the clamping rods are cylindrical structures, and the outer wall of the clamping rods is provided with anti-slip texture.
[0012] Furthermore, an improvement of this utility model is that the motor is a servo motor.
[0013] Compared with the prior art, this utility model provides a clamping device for processing high-strength bolts, which has the following advantages:
[0014] This clamping device, through its innovatively designed sliding adjustable limit seat and positioning frame with clearly marked scales, possesses the powerful function of flexibly adjusting the clamping rod spacing according to the diameter of the bolt blank. This means that when processing bolts of different specifications, there is no need to frequently change the clamping components, greatly expanding the applicability of the clamping device. This design not only reduces production costs but also simplifies the operation process, making the production process more efficient and convenient. Attached Figure Description
[0015] Figure 1 is a first-view perspective three-dimensional structural diagram of the present invention;
[0016] Figure 2 is a second-view perspective three-dimensional structural diagram of the present invention;
[0017] Figure 3 is a front view of Figure 1 of this utility model;
[0018] Figure 4 is a side view of Figure 1 of this utility model;
[0019] Figure 5 is a structural schematic diagram of the base in this utility model;
[0020] In the diagram: 1. Processing table; 2. Base; 3. First threaded rod; 4. Slide groove; 5. Slider; 6. Limiting plate; 7. Positioning frame; 8. Limiting seat; 9. Cavity; 10. Clamping rod; 11. Locking rod; 12. Base frame; 13. Fixed seat; 14. Connecting rod; 15. Motor; 16. Second threaded rod. Detailed Implementation
[0021] 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.
[0022] Please refer to Figures 1-5. A clamping device for processing high-strength bolts according to this utility model includes a processing table 1, and a base 2 is provided at the upper end of the processing table 1.
[0023] The upper end of the processing table 1 is symmetrically provided with two sliding grooves 4 and a slider 5. The slider 5 is inserted into the sliding groove 4 and slidably connected with the sliding groove 4. The upper and lower ends of the slider 5 are symmetrically provided with two limiting plates 6. The two limiting plates 6 are located at the upper and lower ends of the processing table 1, respectively, and the limiting plates 6 are slidably connected with the processing table 1. The upper end of the limiting plate 6 above the processing table 1 is provided with a positioning frame 7. The top of the positioning frame 7 is symmetrically provided with two limiting seats 8. The limiting seat 8 is provided with a cavity 9 that is penetrated by the positioning frame 7. The outer wall of the positioning frame 7 is provided with a scale strip. One side of the limiting seat 8 is provided with a locking rod 11. The locking rod 11 penetrates the limiting seat 8 and presses against the positioning frame 7. The locking rod 11 is threadedly connected to the limiting seat 8. The other side of the limiting seat 8 is provided with a clamping rod 10.
[0024] The limiting plate 6 below the processing table 1 has a base frame 12 at its lower end. The lower end of the processing table 1 has a motor 15. Below the motor 15 is a fixed seat 13. The output end of the motor 15 has a second threaded rod 16 that passes through the fixed seat 13. The second threaded rod 16 is threadedly connected to the fixed seat 13. Two connecting rods 14 are symmetrically arranged on both sides of the fixed seat 13. The bottom end of the connecting rod 14 is hinged to one side of the fixed seat 13, and the top end of the connecting rod 14 is hinged to the base frame 12.
[0025] In this embodiment, the base 2 adopts a magnetic structure.
[0026] Preliminary preparations: Before machining high-strength bolts, the bolt blank to be processed is first placed on the base 2 at the top of the machining table 1. The base 2 adopts a magnetic structure, and the magnetic force generated by it will initially attract and fix the bolt blank. This design not only effectively avoids accidental displacement of the blank during subsequent operations, but also provides convenient conditions for more precise clamping operations, ensuring that the blank is in a relatively stable state in the initial stage.
[0027] Overall clamping process: After starting the motor 15, the fixed seat 13 below the motor 15 will move up or down as the second threaded rod 16 on the output shaft of the motor 15 rotates. The connecting rods 14 symmetrically arranged on both sides of the fixed seat 13 are hinged at their bottom ends to the fixed seat 13 and hinged at their top ends to the base frame 12 at the lower end of the lower limiting plate 6 of the processing table 1. This hinged structure allows the lifting movement of the fixed seat 13 to be converted into the horizontal movement of the base frame 12 through the connecting rods 14, thereby driving the lower limiting plate 6 of the processing table 1, which is connected to the base frame 12, to move synchronously. Since the upper and lower limiting plates 6 of the processing table 1 are slidably connected to the slide groove 4 through the slider 5, the movement of the lower limiting plate 6 will push the upper limiting plate 6 to move together with it using the slider 5. The upper end of the upper limit plate 6 is provided with a positioning frame 7. The symmetrically installed limit seats 8 on the positioning frame 7 will move with the movement of the positioning frame 7, so that the two positioning frames 7 drive multiple clamping rods 10 to approach the bolt blank placed on the base 2, and complete the clamping and fixing operation of the blank.
[0028] Adjustment mechanism for bolts of different specifications: When dealing with bolt blanks of different diameters, the crucial first step is to loosen the locking rod 11 on one side of the limiting seat 8. At this time, the constraint of the limiting seat 8 on the positioning frame 7 is released, allowing it to slide freely. The operator can accurately determine the adjustment position of the limiting seat 8 based on the precisely set scale strip on the outer wall of the positioning frame 7, and then flexibly adjust the distance between the two clamping rods 10. After adjustment, tighten the locking rod 11 again, so that it passes through the limiting seat 8 and presses firmly against the positioning frame 7, thereby firmly fixing the limiting seat 8 in the appropriate position and achieving stable clamping of bolt blanks of different specifications.
[0029] In this embodiment, the lower end of the base 2 is provided with a first threaded rod 3 that is screwed into the processing table 1, and the first threaded rod 3 is threadedly connected to the processing table 1.
[0030] The first threaded rod 3 at the lower end of the base 2 is connected to the processing table 1 by a thread, a clever design that greatly facilitates the replacement of the base 2. In actual production, when different types, specifications, or bases with special functions are required, the operator can easily disassemble and install the base 2 by simply rotating the first threaded rod 3.
[0031] In this embodiment, a plurality of ball bearings that contact the processing table 1 are rotatably arranged on the side of the limiting plate 6 near the processing table 1.
[0032] Multiple ball bearings are rolled on the side of the limiting plate 6 near the processing table 1. These ball bearings play a good role in reducing friction between the limiting plate 6 and the processing table 1. During the clamping and loosening of the bolt blank, the movement of the slider 5 in the slide groove 4 becomes smoother, which not only significantly reduces the operation time and improves the processing efficiency, but also reduces the wear and tear during equipment operation and effectively extends the service life of the equipment.
[0033] In this embodiment, all of the clamping rods 10 are cylindrical structures, and the outer wall of the clamping rods 10 is provided with anti-slip texture.
[0034] The clamping rod 10, with its cylindrical structure and carefully designed anti-slip texture on the outer wall, not only increases the contact area with the bolt blank due to its cylindrical shape, but also enhances the friction due to the anti-slip texture. This effectively prevents the bolt blank from slipping during processing and provides a solid guarantee for ensuring processing accuracy.
[0035] In this embodiment, the motor 15 is a servo motor.
[0036] As a driving component, the servo motor brings high-precision control performance to the entire clamping device. The servo motor can precisely adjust its own speed, direction, and position, thereby achieving precise control over the clamping action and force of the clamping device, meeting the stringent precision requirements of high-strength bolt processing.
[0037] Superior Applicability: This clamping device, through its innovatively designed sliding adjustable limit seat 8 and positioning frame 7 with clear scale strips, possesses the powerful function of flexibly adjusting the spacing of the clamping rods 10 according to the diameter of the bolt blank. This means that when processing bolts of different specifications, there is no need to frequently change the clamping components, greatly improving the applicability of the clamping device. This design not only reduces production costs but also simplifies the operation process, making the production process more efficient and convenient.
[0038] Stable clamping effect: The magnetic structure of the base 2 provides initial stable support for the bolt blank, while the carefully designed cylindrical clamping rod 10 with anti-slip texture generates strong friction during clamping, firmly fixing the bolt blank. Combined with the precise adjustment function of the limit seat 8, the stability of the bolt blank during processing is ensured in all aspects, effectively avoiding the problem of reduced processing accuracy caused by unstable clamping, and significantly improving product quality.
[0039] In the description herein, it should be noted that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.
Claims
1. A clamping device for machining high-strength bolts, comprising a machining table (1), characterized in that: The upper end of the processing table (1) is provided with a base (2); two sliding grooves (4) and a slider (5) are symmetrically arranged on the upper end of the processing table (1). The slider (5) is inserted into the sliding groove (4) and slidably connected with the sliding groove (4). Two limiting plates (6) are symmetrically arranged on the upper and lower ends of the slider (5). The two limiting plates (6) are located at the upper and lower ends of the processing table (1) respectively, and the limiting plates (6) are slidably connected with the processing table (1). The upper end of the limiting plate (6) above the processing table (1) is provided with a positioning frame (7). Two limiting seats (8) are symmetrically slidably arranged on the top of the positioning frame (7). The limiting seats (8) are provided with a cavity (9) through which the positioning frame (7) passes. The outer wall of the positioning frame (7) is provided with a scale strip, and a locking rod (1) is provided on one side of the limiting seat (8). 1) The locking rod (11) passes through the limiting seat (8) and presses against the positioning frame (7). The locking rod (11) is threadedly connected to the limiting seat (8). The other side of the limiting seat (8) is provided with a clamping rod (10). The limiting plate (6) below the processing table (1) is provided with a base frame (12) at its lower end. The lower end of the processing table (1) is provided with a motor (15). The lower part of the motor (15) is provided with a fixed seat (13). The output end of the motor (15) is provided with a second threaded rod (16) that passes through the fixed seat (13). The second threaded rod (16) is threadedly connected to the fixed seat (13). Two connecting rods (14) are symmetrically arranged on both sides of the fixed seat (13). The bottom end of the connecting rod (14) is hinged to one side of the fixed seat (13). The top end of the connecting rod (14) is hinged to the base frame (12).
2. The clamping device for high-strength bolt processing according to claim 1, characterized in that: The base (2) adopts a magnetic structure.
3. The clamping device for high-strength bolt processing according to claim 2, characterized in that: The lower end of the base (2) is provided with a first threaded rod (3) that is screwed into the processing table (1), and the first threaded rod (3) is threadedly connected to the processing table (1).
4. The clamping device for processing high-strength bolts according to claim 3, characterized in that: The limiting plate (6) has multiple ball bearings that contact the processing table (1) on the side closest to the processing table (1).
5. The clamping device for processing high-strength bolts according to claim 4, characterized in that: All of the clamping rods (10) are cylindrical structures, and the outer wall of the clamping rods (10) is provided with anti-slip texture.
6. The clamping device for high-strength bolt processing according to claim 5, characterized in that: The motor (15) is a servo motor.