A long bolt straightening device
By designing a long-rod bolt straightening device with a drive slide and a self-heating support, automated clamping and thermal straightening of long-rod bolts of different diameters and lengths are achieved, solving the problems of low adaptability and low efficiency of existing devices, and improving the straightening effect and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG HAIXUN PRECISION TECH CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-07-17
AI Technical Summary
Existing long-rod bolt straightening devices have low adaptability, are time-consuming and inconvenient to adjust the position of the support point, and have low straightening efficiency.
A long bolt straightening device including a drive slide and a self-heating support was designed. The device achieves automated clamping and thermal straightening through an electric slide rail and a lifting cylinder. The self-heating support is used to heat up and assist in straightening. By combining multiple linkage slides and straighteners, the device can achieve efficient straightening of long bolts of different diameters and lengths.
It improves the adaptability and efficiency of straightening long bolts, has a high degree of automation, provides stable support, and uses elastic buffering to prevent overpressure, significantly improving the straightening effect and efficiency.
Smart Images

Figure CN224508091U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of straightening devices, and in particular to a long rod bolt straightening device. Background Technology
[0002] Long bolts are bolts with relatively long shafts, usually referring to bolts with a large length-to-diameter ratio. Long bolt straightening devices are specialized equipment used to straighten long bolts that have bent or deformed during processing, heat treatment, or use. They are widely used in machinery manufacturing, power, petrochemical, shipbuilding, and other fields.
[0003] Existing long bolt straightening devices have a relatively simple structure, making it difficult to adapt to long bolts of different diameters and lengths. The support structure is also simple, failing to provide sufficient support stability. Adjusting the support point position is time-consuming and inconvenient, affecting production efficiency. The straightening mode is simple, resulting in low straightening efficiency.
[0004] Therefore, in order to address the problems of low adaptability, time-consuming and inconvenient adjustment of support point position, and low straightening efficiency of the existing long bolt straightening devices, a new long bolt straightening device can be designed. Utility Model Content
[0005] To overcome the problems of low adaptability, time-consuming and inconvenient adjustment of support point position, and low straightening efficiency of existing long bolt straightening devices.
[0006] The technical solution of this utility model is as follows: a long rod bolt straightening device, including a worktable; it also includes a drive slide and a self-heating support. The upper end of the worktable is slidably connected to a straightening platform via an electric slide rail. An adjustment cavity is opened at the upper end of the straightening platform. A fixed slide and a drive slide are slidably connected inside the adjustment cavity. Three driven slides are slidably connected inside the adjustment cavity and between the fixed slide and the drive slide. The upper ends of the fixed slide and the drive slide are rotatably connected to a support roller via a mounting seat one. The upper ends of the driven slides are fixedly connected to a spring via a mounting seat two. The upper ends of the springs are fixedly connected to a self-heating support. A support frame is fixedly connected to the upper end of the worktable. A lifting cylinder is fixedly connected to the lower end of the support frame. A straightener is fixedly connected to the output end of the lifting cylinder. The lifting cylinder is used to drive the straightener to lift and lower.
[0007] Preferably, the long bolt is placed on the support roller and the self-heating support, the fixed slide is fixed on the straightening table, the drive slide moves along the adjustment cavity, and drives the three driven slides to move synchronously and equidistantly to fix and clamp the two ends of the long bolt. At the same time, the self-heating support heats up to assist in the thermal straightening of the long bolt. The straightening table drives the locally bent section of the long bolt to move horizontally to below the straightener. The lifting cylinder drives the straightener to move down and press to straighten the long bolt.
[0008] Preferably, a threaded rod is rotatably connected inside the adjustment cavity, and an adjustment motor is fixedly connected to the left end of the straightening table. The output shaft of the adjustment motor is fixedly connected to the threaded rod, and the adjustment motor is used to drive the threaded rod to rotate.
[0009] Preferably, both the fixed slide and the driven slide are slidably connected to the threaded rod, and the drive slide and the threaded rod are threadedly connected.
[0010] Preferably, both the fixed slide and the driving slide are rotatably connected to a short connecting rod at their upper ends, and the driven slide is rotatably connected to a long connecting rod at its upper end. One end of two adjacent long connecting rods is rotatably connected, and the other end of the long connecting rod is rotatably connected to the short connecting rod.
[0011] Preferably, a connecting plate is fixedly connected to the front end of the fixed slide, and a fastening bolt is threadedly connected to the upper end of the connecting plate. The lower end of the fastening bolt is adapted to the surface of the straightening table.
[0012] Preferably, a clamping plate is fixedly connected to the end of the mounting base one that is away from the mounting base two. A rubber layer is fixedly connected to the inner wall of the clamping plate. Two support rollers are symmetrically arranged at the front and back, and the support rollers are made of rubber.
[0013] Preferably, a telescopic rod is sleeved inside the spring, and the two ends of the telescopic rod are fixedly connected to the second mounting base and the self-heating bracket, respectively. A pressure sensor is fixedly connected inside the telescopic rod. The self-heating bracket has a V-shaped structure and a heating element is installed inside the self-heating bracket.
[0014] The beneficial effects of this utility model are:
[0015] This long bolt straightening device uses a drive slide and a self-heating support to place the long bolt on the support roller and the self-heating support. The fixed slide is fixed on the straightening table. The drive slide moves along the adjustment cavity, causing three driven slides to move synchronously and equidistantly, fixing and clamping both ends of the long bolt. It is suitable for straightening long bolts of different diameters and lengths. It has a high degree of automation, with five linked slides providing stable support. At the same time, the self-heating support heats up to assist in the thermal straightening of the long bolt, reducing the yield strength of the long bolt. The straightening table moves the locally bent section of the long bolt horizontally to below the straightener. The lifting cylinder moves the straightener down to press and straighten the long bolt. The spring elastic buffer prevents overpressure, improving the straightening effect and efficiency. Attached Figure Description
[0016] Figure 1 The diagram shown is a three-dimensional structural schematic of the present invention.
[0017] Figure 2 The diagram shown is a three-dimensional cross-sectional view of the present invention.
[0018] Figure 3The diagram shown is a schematic representation of the long connecting rod structure of this utility model.
[0019] Figure 4 The diagram shown is a schematic representation of the fixed slide structure of this utility model.
[0020] Figure 5 The diagram shown is a schematic of the driven slide structure of this utility model.
[0021] Explanation of reference numerals in the attached drawings: 1. Workbench; 2. Straightening table; 3. Adjustment cavity; 4. Fixed slide; 5. Drive slide; 6. Driven slide; 7. Mounting seat one; 8. Support roller; 9. Mounting seat two; 10. Spring; 11. Self-heating support; 12. Support frame; 13. Lifting cylinder; 14. Straightener; 15. Threaded rod; 16. Adjusting motor; 17. Short connecting rod; 18. Long connecting rod; 19. Connecting plate; 20. Fastening bolt; 21. Clamping plate; 22. Telescopic rod. Detailed Implementation
[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0023] Please see Figures 1-5 This utility model provides an embodiment: a long bolt straightening device, including a workbench 1; it also includes a drive slide 5 and a self-heating support 11. A straightening platform 2 is slidably connected to the upper end of the workbench 1 via an electric slide rail. An adjustment cavity 3 is opened at the upper end of the straightening platform 2. A fixed slide 4 and a drive slide 5 are slidably connected inside the adjustment cavity 3. Three driven slides 6 are slidably connected inside the adjustment cavity 3 and between the fixed slide 4 and the drive slide 5. Support rollers 8 are rotatably connected to the upper ends of both the fixed slide 4 and the drive slide 5 via mounting base 1 7. Springs 10 are fixedly connected to the upper ends of each driven slide 6 via mounting base 2 9. The self-heating support 11 is fixedly connected to the upper end of each spring 10. A support frame 12 is fixedly connected to the upper end of the workbench 1, and a lifting cylinder 13 is fixedly connected to the lower end of the support frame 12. A straightener 14 is fixedly connected to the output end of cylinder 13. The lifting cylinder 13 is used to drive the straightener 14 to rise and fall. In use, the long bolt is placed on the support roller 8 and the self-heating support 11. The fixed slide 4 is fixed on the straightening table 2. The drive slide 5 moves along the adjustment cavity 3, which drives the three driven slides 6 to move synchronously and equidistantly, fixing and clamping both ends of the long bolt. It is suitable for the straightening needs of long bolts of different diameters and lengths. It has a high degree of automation. The five linked slides provide stable support. At the same time, the self-heating support 11 heats up to assist in the thermal straightening of the long bolt and reduce the yield strength of the long bolt. The straightening table 2 drives the locally bent section of the long bolt to move horizontally to below the straightener 14. The lifting cylinder 13 drives the straightener 14 to move down and press to straighten the long bolt. The spring 10 provides elastic buffer to prevent overpressure, which improves the straightening effect and efficiency.
[0024] Please see Figure 1 , Figure 2 and Figure 3 In this embodiment, a threaded rod 15 is rotatably connected inside the adjusting cavity 3, and an adjusting motor 16 is fixedly connected to the left end of the straightening table 2. The output shaft of the adjusting motor 16 is fixedly connected to the threaded rod 15. The adjusting motor 16 is used to drive the threaded rod 15 to rotate. The adjusting motor 16 drives the threaded rod 15 to rotate. The fixed slide 4 and the driven slide 6 are both slidably connected to the threaded rod 15. The driving slide 5 is threadedly connected to the threaded rod 15. The rotation of the threaded rod 15 drives the driving slide 5 to move. The upper ends of the fixed slide 4 and the driving slide 5 are rotatably connected to short connecting rods 17. The upper ends of the driven slides 6 are rotatably connected to long connecting rods 18. One end of two adjacent long connecting rods 18 is rotatably connected, and the other end of the long connecting rod 18 is rotatably connected to the short connecting rod 17. Through the connection of the short connecting rod 17 and the long connecting rod 18, the movement of the driving slide 5 drives the three driven slides 6 to move synchronously and equidistantly.
[0025] Please see Figure 3 , Figure 4 and Figure 5 In this embodiment, a connecting plate 19 is fixedly connected to the front end of the fixed slide 4. A fastening bolt 20 is threadedly connected to the upper end of the connecting plate 19. The lower end of the fastening bolt 20 is adapted to the surface of the straightening table 2. Rotating the fastening bolt 20 fixes the connecting plate 19 and the fixed slide 4 onto the straightening table 2. A clamping plate 21 is fixedly connected to the end of the mounting base 1 7 away from the mounting base 2 9. A rubber layer is fixedly connected to the inner wall of the clamping plate 21. Two support rollers 8 are symmetrically arranged front and rear, and the support rollers 8 are made of rubber. The two clamping plates 21 fix and clamp the two ends of the long bolt. The support rollers 8 provide... Flexible support avoids damage to the surface of the long bolt and facilitates rotation and adjustment. A telescopic rod 22 is sleeved inside the spring 10. The two ends of the telescopic rod 22 are fixedly connected to the mounting base 9 and the self-heating support 11, respectively. A pressure sensor is fixedly connected inside the telescopic rod 22. The self-heating support 11 has a V-shaped structure and a heating element inside. The heating element heats up the self-heating support 11 to assist in the thermal straightening of the long bolt. The telescopic rod 22 controls the movement path of the spring 10. The pressure sensor monitors the support force in real time and feeds it back to the control system to realize the dynamic adjustment of the straightening force.
[0026] During operation, the long bolt is placed on the support roller 8 and the self-heating support 11. The fastening bolt 20 is rotated to fix the connecting plate 19 and the fixed slide 4 on the straightening table 2. The adjusting motor 16 drives the threaded rod 15 to rotate. Through the connection of the short connecting rod 17 and the long connecting rod 18, the slide 5 is driven to move, which drives the three driven slides 6 to move synchronously and equidistantly, fixing and clamping both ends of the long bolt. The five linked slides provide stable support. At the same time, the self-heating support 11 heats up to assist in the thermal straightening of the long bolt. The straightening table 2 drives the locally bent section of the long bolt to move horizontally to below the straightener 14. The lifting cylinder 13 drives the straightener 14 to move down and press to straighten the long bolt. The spring 10 provides elastic buffer to prevent overpressure, thus improving the straightening effect and efficiency.
[0027] Through the above steps, the drive slide 5 drives the three driven slides 6 to move synchronously and equidistantly, fixing and clamping long bolts of different diameters and lengths. The automation level is high, the five linked slides provide stable support, and the self-heating support 11 heats up to assist in the thermal straightening of the long bolts, reducing the yield strength of the long bolts and improving the straightening effect and efficiency. This solves the problems of low adaptability, time-consuming and inconvenient adjustment of support point position, and low straightening efficiency of existing long bolt straightening devices.
Claims
1. A long rod bolt straightening device comprising a workbench (1); characterized in that: It also includes a drive slide (5) and a self-heating support (11). The upper end of the worktable (1) is slidably connected to a straightening table (2) via an electric slide rail. An adjustment cavity (3) is opened at the upper end of the straightening table (2). A fixed slide (4) and a drive slide (5) are slidably connected inside the adjustment cavity (3). Three driven slides (6) are slidably connected inside the adjustment cavity (3) and between the fixed slide (4) and the drive slide (5). The upper ends of the fixed slide (4) and the drive slide (5) are both mounted via... The first seat (7) is rotatably connected to the support roller (8). The upper end of the driven slide (6) is fixedly connected to the spring (10) through the second mounting seat (9). The upper end of the spring (10) is fixedly connected to the self-heating support (11). The upper end of the workbench (1) is fixedly connected to the support frame (12). The lower end of the support frame (12) is fixedly connected to the lifting cylinder (13). The output end of the lifting cylinder (13) is fixedly connected to the straightener (14). The lifting cylinder (13) is used to drive the straightener (14) to lift.
2. A long rod bolt straightening device according to claim 1, characterized in that: The adjusting cavity (3) is rotatably connected to a threaded rod (15), and the left end of the straightening table (2) is fixedly connected to an adjusting motor (16). The output shaft of the adjusting motor (16) is fixedly connected to the threaded rod (15), and the adjusting motor (16) is used to drive the threaded rod (15) to rotate.
3. A long rod bolt straightening device according to claim 2, wherein: The fixed slide (4) and the driven slide (6) are both slidably connected to the threaded rod (15), and the drive slide (5) and the threaded rod (15) are threadedly connected.
4. A long rod bolt straightening device according to claim 1, characterized in that: Both the fixed slide (4) and the driving slide (5) are rotatably connected to a short connecting rod (17), and both the driven slide (6) are rotatably connected to a long connecting rod (18). One end of two adjacent long connecting rods (18) are rotatably connected, and the other end of the long connecting rod (18) is rotatably connected to the short connecting rod (17).
5. A long rod bolt straightening device as claimed in claim 1, wherein: The front end of the fixed slide (4) is fixedly connected to a connecting plate (19), and the upper end of the connecting plate (19) is threadedly connected to a fastening bolt (20). The lower end of the fastening bolt (20) is compatible with the surface of the straightening table (2).
6. A long rod bolt straightening device according to claim 1, characterized in that: The end of mounting base one (7) away from mounting base two (9) is fixedly connected to a clamping plate (21). The inner wall of the clamping plate (21) is fixedly connected to a rubber layer. There are two support rollers (8) symmetrically arranged in front and behind, and the support rollers (8) are made of rubber.
7. A long rod bolt straightening device as claimed in claim 1, wherein: The spring (10) has a telescopic rod (22) inside. The two ends of the telescopic rod (22) are fixedly connected to the mounting base (9) and the self-heating bracket (11) respectively. A pressure sensor is fixedly connected inside the telescopic rod (22). The self-heating bracket (11) is a V-shaped structure and has a heating element inside.