Long-axis screw rod correcting device

Abstract

The utility model discloses a long-axis lead screw correcting device which comprises a base, a movable hydraulic table, a first support, a second support, a centering three-axis chuck structure, a center top and a measuring tool, and the movable hydraulic table is arranged on the base in a sliding mode; the first support is fixed at one end of the base; the first support is fixed at one end of the base, the second support is fixed at the other end of the base, and the movable hydraulic table is located between the first support and the second support; the centering three-axis chuck structure is rotationally arranged in the first support; a center top is arranged on the second support in a penetrating mode, the center top and the centering three-axis chuck structure are coaxial, and a long shaft to be straightened is limited between the centering three-axis chuck structure and the center top. The two sides of the movable hydraulic table are each provided with one measuring tool, and when the long shaft is straightened, the measuring tools make contact with the long shaft to be straightened. The problem that time and labor are wasted when an existing long-shaft lead screw correcting device is used for straightening workpieces can be solved.

Description

Technical Field

[0001] The present application relates to the technical field of long-axis correction, and in particular to a long-axis screw correction device. Background Art

[0002] In the prior art, when straightening a long-axis lead screw, the radial runout of the lead screw must first be measured. Generally, a technician manually uses a dial indicator. The technician observes the high point based on experience according to the display of different measuring points on the dial indicator, and then straightens the high point on the straightening device. Since the workpiece is relatively long, there will be multiple bends on the workpiece, and the degree and direction of the bends are different. Therefore, this method has extremely high requirements on the operator and the measurement accuracy is very low. It is often the case that the current point is straightened, but other points have problems. Straightening a workpiece is time-consuming and laborious.

[0003] The above contents are only used to assist in understanding the technical solution of the present application and do not constitute an admission that the above contents are prior art. Utility Model Content

[0004] The main purpose of the present application is to provide a long-axis screw correction device, aiming to solve the problem that the existing long-axis screw correction device is time-consuming and labor-intensive in straightening a workpiece.

[0005] To achieve the above-mentioned purpose, the present application provides a long-axis screw correction device for straightening the long axis 6 to be straightened, the device comprising a base, a mobile hydraulic platform, a first support, a second support, a centering three-axis chuck structure, a center top and a measuring tool, wherein the mobile hydraulic platform is slidably arranged on the base; the first support is fixed to one end of the base; the second support is fixed to the other end of the base, and the mobile hydraulic platform is located between the first support and the second support; wherein the second support, the first support and the mobile hydraulic platform are located on the same side of the base; the centering three-axis chuck structure is rotatably arranged in the first support; the center top is arranged through the second support, the center top is coaxial with the centering three-axis chuck structure, and the long axis to be straightened is limited between the centering three-axis chuck structure and the center top; measuring tool: a measuring tool is arranged on both sides of the mobile hydraulic platform, and when straightening the long axis, the measuring tool is in contact with the long axis to be straightened.

[0006] Optionally, the mobile hydraulic platform includes a top plate, two side plates and a hydraulic cylinder, wherein the two side plates are arranged opposite to each other and are respectively connected to the side of the top plate facing the base, and both side plates are slidably matched with the base; the hydraulic cylinder is arranged on the side of the top plate facing the base, and the hydraulic cylinder has a hydraulic head arranged toward the long axis to be straightened, and the hydraulic head has telescopic freedom in the height direction of the mobile hydraulic platform.

[0007] Optionally, roller mounting plates are provided at the ends of the two side plates facing the base, and rollers are mounted on each of the roller mounting plates, and the rollers roll and contact with the surface of the base.

[0008] Optionally, the base includes a first horizontal plate, a second horizontal plate and a vertical plate, wherein the roller rolls in conjunction with the first horizontal plate; the second horizontal plate is located on the side of the first horizontal plate facing the top plate, and a matching groove is provided on the side of the second horizontal plate facing the top plate; the vertical plate is connected between the first horizontal plate and the second horizontal plate, and the first horizontal plate, the second horizontal plate and the vertical plate constitute a structure with an "I"-shaped cross-section.

[0009] Optionally, the long-axis screw correction device further includes an adjustable supporting slider, one end of which is engaged in the matching groove, and the other end of which is engaged with the long axis to be straightened.

[0010] Optionally, the adjustable supporting slider includes a limit plate, a connecting plate, a transition plate and a matching plate, wherein the limit plate is matched in the matching groove; one end of the connecting plate is connected to the side of the limit plate facing the top plate; the transition plate is connected to the end of the connecting plate away from the limit plate; the matching plate is connected to the side of the transition plate away from the connecting plate, and the side of the matching plate facing the hydraulic cylinder is set to an arc surface, and the arc surface is in contact with the long axis to be straightened.

[0011] Optionally, the long-axis screw correction device also includes two limit sliders, which are respectively fixed on the opposite sides of the two side plates, and the two limit sliders are on the same horizontal plane, and the two limit sliders are attached to the side of the second horizontal plate away from the top plate.

[0012] Optionally, the centering three-axis chuck structure includes a handwheel, a rotating shaft and a clamping claw, wherein the rotating shaft is located on the side of the first support away from the second support and passes through the first support, and the rotating shaft rotates with the first support; the handwheel is connected to one end of the rotating shaft away from the second support; and the clamping claw is fixed to one end of the rotating shaft passing through the first support.

[0013] Optionally, the long-axis screw correction device also includes a roller support seat, wherein one end of the roller support seat is in rolling cooperation with the long axis to be straightened, and the other end is limited in the cooperation groove.

[0014] Optionally, the roller support seat includes a base plate, a connecting block, a roller mounting frame and a rotating wheel, wherein the base plate is limited in the matching groove; the connecting block is connected to the base plate; the roller mounting frame is fixed to the connecting block, and the roller mounting frame is arranged as a forked structure at one end close to the long axis to be straightened; each of the forked structures is equipped with a rotating wheel, and the rotating wheel has the freedom to rotate around its axis.

[0015] A long-axis screw correction device proposed in an embodiment of the present application can use a measuring tool to measure the degree of bending of the long axis to be straightened, and a centering three-axis chuck structure and a center top can be used to fix the long axis to be straightened at both ends, and then the curved section of the long axis to be straightened is straightened by a hydraulic platform. In this way, accurate straightening of the long axis to be straightened is achieved through the coordinated use of a mobile hydraulic platform, a centering three-axis chuck structure, a center top and a measuring tool, thereby improving the straightening efficiency and quality, and making the straightening of the long-axis screw more time-saving and labor-saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the structure of a long-axis screw correction device provided in an embodiment of the present application;

[0017] Figure 2 for Figure 1 A cross-sectional view from another perspective;

[0018] Figure 3 for Figure 1 A cross-sectional view from another perspective;

[0019] Among them, 1. hand wheel; 2. centering three-axis chuck structure; 201. rotating shaft; 202. claw; 3. mobile hydraulic table; 301. top plate; 302. side plate; 303. hydraulic cylinder; 304. roller mounting plate; 305. roller; 5. measuring tool; 6. long axis to be straightened; 7. adjustable supporting slider; 701. limit plate; 702. connecting plate; 703. transition plate; 704. matching plate; 8. roller support seat; 801. bottom plate; 802. connecting block; 803. roller mounting frame; 804. rotating wheel; 9. center top; 10. base; 1001. first horizontal plate; 1002. second horizontal plate; 1003. vertical plate; 1004. matching groove; 11. limit slider.

[0020] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0023] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0025] See also Figure 1, an embodiment of the present application provides a long axis screw correction device for straightening the long axis 6 to be straightened, the device may include a base 10, a mobile hydraulic platform 3, a first support, a second support, a centering three-axis chuck structure 2, a center top 9 and a measuring tool 5, wherein the mobile hydraulic platform 3 is slidably arranged on the base 10; the first support is fixed to one end of the base 10; the second support is fixed to the other end of the base 10, and the mobile hydraulic platform 3 is located between the first support and the second support, wherein the second support, the first support and the mobile hydraulic platform 3 are located on the same side of the base 10; the centering three-axis chuck structure 2 is rotatably arranged in the first support; the center top 9 is arranged through the second support, the center top 9 is coaxial with the centering three-axis chuck structure 2, and the long axis 6 to be straightened is limited between the centering three-axis chuck structure 2 and the center top 9; a measuring tool 5 is arranged on both sides of the mobile hydraulic platform 3, and when straightening the long axis, the measuring tool 5 contacts the long axis 6 to be straightened.

[0026] Specifically, when the long axis 6 to be straightened is to be straightened, the long axis 6 to be straightened is set between the centering three-axis chuck structure 2 and the center top 9, the mobile hydraulic platform 3 is pushed to the place where the long axis 6 to be straightened is bent, and the bending degree of the long axis 6 to be straightened is measured by the measuring tool 5. The bending degree of the long axis 6 to be straightened is adjusted by the mobile hydraulic platform 3 to achieve accurate straightening. At the same time, due to the setting of the centering three-axis chuck structure 2 and the center top 9, the stability and accuracy of the long axis 6 to be straightened during the straightening process can be guaranteed, and the straightening efficiency and quality can be improved.

[0027] In this embodiment, the measuring tool 5 can measure the bending degree of the long axis 6 to be straightened, the centering three-axis chuck structure 2 and the center top 9 can fix the long axis 6 to be straightened at both ends, and then the bending section of the long axis 6 to be straightened is straightened by the hydraulic platform 3. In this way, the long axis 6 to be straightened is accurately straightened by the coordinated use of the mobile hydraulic platform 3, the centering three-axis chuck structure 2, the center top 9 and the measuring tool 5, thereby improving the straightening efficiency and quality. The long axis screw correction device of the embodiment of the present application has broad application prospects and practical value.

[0028] See also Figure 2 The mobile hydraulic platform 3 may include a top plate 301, two side plates 302 and a hydraulic cylinder 303, wherein the two side plates 302 are arranged opposite to each other and are respectively connected to the side of the top plate 301 facing the base 10, and the two side plates 302 are both slidably matched with the base 10; the hydraulic cylinder 303 is arranged on the side of the top plate 301 facing the base 10, and the hydraulic cylinder 303 has a hydraulic head arranged toward the long axis 6 to be straightened, and the hydraulic head has telescopic freedom in the height direction of the mobile hydraulic platform 3.

[0029] Specifically, the mobile hydraulic platform 3 is an important component of the long-axis screw correction device of the embodiment of the present application, which is mainly composed of a top plate 301, two side plates 302 and a hydraulic cylinder 303. The two side plates 302 are vertically connected to the bottom of the top plate 301 to form a stable support structure. At the same time, a sliding matching device is provided between the two side plates 302 and the base 10, so that the mobile hydraulic platform 3 can slide smoothly on the base 10. The hydraulic cylinder 303 is installed at the bottom of the top plate 301, and the direction of its piston rod is facing the long axis 6 to be straightened. During the straightening process, the piston rod of the hydraulic cylinder 303 will extend and press against the outer periphery of the long axis 6 to be straightened, and the thrust of the hydraulic cylinder 303 will push the long axis 6 to be straightened to deform.

[0030] In this embodiment, the long shaft 6 to be straightened can be accurately straightened by the precise control of the hydraulic cylinder 303. At the same time, due to the sliding fit between the mobile hydraulic platform 3 and the base 10, the mobile hydraulic platform 3 can be easily moved to any position to meet the straightening requirements of the long shaft 6 to be straightened of different lengths. In addition, the solid structure of the top plate 301 and the side plate 302 ensures the stability of the mobile hydraulic platform 3 during the straightening process, and improves the accuracy and efficiency of the straightening.

[0031] See also Figure 2 The ends of the two side plates 302 facing the base 10 are both provided with roller mounting plates 304 , and each roller mounting plate 304 is mounted with a roller 305 , and the roller 305 rolls in contact with the surface of the base 10 .

[0032] Specifically, the arrangement of the roller mounting plate 304 and the roller 305 further improves the sliding performance of the mobile hydraulic platform 3 on the base 10, reduces the friction resistance, and makes the mobile hydraulic platform 3 move more smoothly on the base 10. At the same time, the arrangement of the roller 305 can also bear the weight of the mobile hydraulic platform 3 and the long shaft 6 to be straightened to a certain extent, reducing the burden on the base 10.

[0033] In this embodiment, the coordinated use of the roller mounting plate 304 and the roller 305 not only improves the mobility and stability of the mobile hydraulic platform 3, but also protects the service life of the base 10 and the mobile hydraulic platform 3, and further improves the reliability and durability of the long-axis screw correction device.

[0034] See also Figure 2The base 10 includes a first horizontal plate 1001, a second horizontal plate 1002 and a vertical plate 1003, wherein the roller 305 is rollingly matched with the first horizontal plate 1001; the second horizontal plate 1002 is located on the side of the first horizontal plate 1001 facing the top plate 301, and a matching groove 1004 is provided on the side of the second horizontal plate 1002 facing the top plate 301; the vertical plate 1003 is connected between the first horizontal plate 1001 and the second horizontal plate 1002, and the first horizontal plate 1001, the second horizontal plate 1002 and the vertical plate 1003 constitute a structure with an "I"-shaped cross-section.

[0035] Specifically, the base 10 is an important supporting part of the long-axis screw correction device of the embodiment of the present application, and its structural design is crucial to ensuring the stability and accuracy of the entire device.

[0036] In this embodiment, the base 10 includes a first horizontal plate 1001, a second horizontal plate 1002 and a vertical plate 1003. These three parts constitute a structure with an I-shaped cross-section. This structure has good bearing capacity and stability and can effectively support and fix the entire correction device.

[0037] See also Figure 1 , Figure 2 The long-axis screw correction device also includes an adjustable supporting slider 7, one end of which is engaged with the matching groove 1004, and the other end is engaged with the long axis 6 to be straightened.

[0038] Specifically, one end of the adjustable support slider 7 is matched in the matching groove 1004, and the other end is matched with the long axis 6 to be straightened, which can provide stable support for the long axis 6 to be straightened during the straightening process, prevent it from shaking or offsetting during the straightening process, thereby ensuring the accuracy and stability of the straightening. In addition, the adjustable support slider 7 has a simple structure, is easy to use, can be quickly installed and disassembled, and improves the flexibility and practicality of the correction device.

[0039] See also Figure 2 The adjustable supporting slider 7 may include a limit plate 701, a connecting plate 702, a transition plate 703 and a matching plate 704, wherein the limit plate 701 is matched in the matching groove 1004; one end of the connecting plate 702 is connected to the side of the limit plate 701 facing the top plate 301; the transition plate 703 is connected to the end of the connecting plate 702 away from the limit plate 701; the matching plate 704 is connected to the side of the transition plate 703 away from the connecting plate 702, and the side of the matching plate 704 facing the hydraulic cylinder 303 is set to an arc surface, and the arc surface is in contact with the long axis 6 to be straightened.

[0040] Specifically, the combination of the limit plate 701, the connecting plate 702, the transition plate 703 and the matching plate 704 in the adjustable support slider 7 makes the adjustable support slider 7 not only structurally stable but also fully functional. The design of the limit plate 701 enables it to be accurately matched in the matching groove 1004, thereby ensuring the stability of the adjustable support slider 7 during the straightening process. The connecting plate 702 closely connects the limit plate 701 with other parts, enhancing the stability of the entire structure. The transition plate 703 plays a role of connection and transition, making the connection between the parts smoother and more natural. The design of the matching plate 704 further reflects the uniqueness of the adjustable support slider 7. The side facing the hydraulic cylinder 303 is set as an arc surface. This design enables the matching plate 704 to fit more closely with the long axis 6 to be straightened, thereby providing a more stable and reliable support. This design not only improves the accuracy and stability of straightening, but also makes the long axis screw correction device more adaptable to diverse straightening needs. At the same time, the design of the arc surface can also reduce the friction between the long axis 6 to be straightened, further improving the straightening efficiency and quality.

[0041] See also Figure 2 The long-axis screw correction device also includes two limit sliders 11, which are respectively fixed on the opposite sides of the two side plates 302, and the two limit sliders 11 are on the same horizontal plane. The two limit sliders 11 are attached to the side of the second horizontal plate 1002 away from the top plate 301.

[0042] Specifically, the two limit sliders 11 are another important component of the long axis screw correction device of the embodiment of the present application, and are designed to ensure the stability and accuracy of the long axis 6 to be straightened during the straightening process. The material of the limit sliders 11 must have sufficient hardness to withstand pressure.

[0043] In this embodiment, the two limit sliders 11 are fixed to the opposite sides of the two side plates 302 and are on the same horizontal plane. This configuration not only ensures the stability of the limit sliders 11, but also enables them to fit tightly to the side of the second horizontal plate 1002 away from the top plate 301. This design improves the accuracy and stability of the alignment.

[0044] See also Figure 1 The centering three-axis chuck structure 2 may include a handwheel 1, a rotating shaft 201 and a clamping claw 202, wherein the rotating shaft 201 is located on a side of the first support away from the second support and passes through the first support, and the rotating shaft 201 rotates in cooperation with the first support; the handwheel 1 is connected to one end of the rotating shaft 201 away from the second support; the clamping claw 202 is fixed to one end of the rotating shaft 201 passing through the first support.

[0045] Specifically, the organic combination of the handwheel 1, the rotating shaft 201 and the claw 202 of the centering three-axis chuck structure 2 enables the chuck structure to achieve both a stable clamping of the long shaft 6 to be straightened and accurate adjustment to meet the straightening requirements of the long shaft 6 to be straightened of different sizes and shapes. The handwheel 1 serves as a direct interface for user operation, allowing the operator to operate easily and comfortably. The connection between the handwheel 1 and the rotating shaft 201 is firm and reliable, ensuring the stability and accuracy of the operation. The rotating shaft 201 passes through the first support and rotates with the first support. This design not only ensures the flexibility of the rotating shaft 201, but also limits its range of movement, so that the claw 202 can be accurately positioned on the long shaft 6 to be straightened. The claw 202 is a key component of the centering three-axis chuck structure 2, which is fixed to one end of the rotating shaft 201 facing the center top 9. The claw 202 is made of high-strength, wear-resistant material, ensuring the stability and durability of its clamping of the long shaft 6 to be straightened. At the same time, the shape and size of the clamping claws 202 are carefully designed and manufactured so that they can adapt to the long shafts 6 to be straightened of different sizes and shapes, thereby improving the adaptability and flexibility of the chuck structure.

[0046] In this embodiment, the operator rotates the hand wheel 1 to drive the rotating shaft 201 and the clamping claw 202 to rotate. By adjusting the clamping claw 202, the clamping claw 202 can tightly clamp the long shaft 6 to be straightened to prevent it from shaking or deflecting during the straightening process. This design not only ensures the accuracy and stability of the straightening, but also reduces the difficulty and labor intensity of the operator's work.

[0047] See also Figure 1 , Figure 3 The long-axis screw correction device can also include a roller support seat 8, one end of the roller support seat 8 is rollingly matched with the long axis 6 to be straightened, and the other end is limited in the matching groove 1004.

[0048] Specifically, the main function of the roller support seat 8 is to provide rolling support for the long axis 6 to be straightened, so that the long axis 6 to be straightened can rotate steadily and smoothly during the straightening process. This design not only reduces the friction between the long axis 6 to be straightened and the device, and improves the straightening efficiency, but also protects the surface of the long axis 6 to be straightened and prevents damage caused by friction. One end of the roller support seat 8 is in rolling cooperation with the long axis 6 to be straightened. This cooperation mode not only ensures that the long axis 6 to be straightened can rotate smoothly, but also limits its moving direction, so that the long axis 6 to be straightened can be straightened along a predetermined trajectory. The other end is limited in the cooperation groove 1004. This design ensures the stability and position accuracy of the roller support seat 8, so that the long axis 6 to be straightened can be accurately supported and guided during the straightening process.

[0049] In this embodiment, the design of the roller support seat 8 also has certain flexibility and adjustability. According to the different sizes and shapes of the long axis 6 to be straightened, the operator can adjust the position and angle of the roller support seat 8 to make it more suitable for the straightening requirements. This design not only improves the flexibility and adaptability of the long axis lead screw correction device, but also further improves the straightening efficiency and quality.

[0050] See also Figure 3 The roller support seat 8 may include a base plate 801, a connecting block 802 and a roller mounting frame 803, wherein the base plate 801 is limited in the matching groove 1004; the connecting block 802 is connected to the base plate 801; the roller mounting frame 803 is fixed to the connecting block 802, and the roller mounting frame 803 is arranged as a forked structure at one end close to the long axis 6 to be straightened; each forked structure is provided with a rotating wheel 804, and the rotating wheel 804 has the freedom to rotate around its axis.

[0051] Specifically, the base plate 801 is the basic part of the roller support seat 8, which is used to fix and support the entire roller support seat. It is limited in the matching groove 1004. This design not only ensures the stability of the roller support seat, but also limits its range of movement, so that the roller support seat can be accurately positioned in the long-axis screw correction device. The base plate 801 must have sufficient strength and stability to withstand the pressure and weight of the long axis 6 to be straightened, and must have certain wear resistance and corrosion resistance to ensure stability and reliability for long-term use. The connecting block 802 is the connecting part between the base plate 801 and the roller mounting frame 803, which is used to firmly connect the base plate 801 and the roller mounting frame 803 together. The design of the connecting block 802 ensures the firmness and stability of the connection. The roller mounting frame 803 is a key part of the roller support seat 8, which is used to install and fix the rotating wheel 804. The end of the roller 804 close to the long axis 6 to be straightened is set as a bifurcated structure. This design enables the rotating wheel 804 to fit closely to the surface of the long axis 6 to be straightened, reducing friction and resistance, and improving the straightening efficiency and quality. The rotating wheel 804 is the core component of the roller support 8, which is closely matched with the long axis 6 to be straightened and rotates with the rotation of the long axis 6 to be straightened.

[0052] In this embodiment, the roller support seat 8 includes key parts such as a base plate 801, a connecting block 802, and a roller mounting frame 803. Its ingenious design and powerful functions enable the long-axis screw correction device to complete the straightening task more efficiently and accurately. At the same time, the roller support seat also has the advantages of simple structure, convenient operation, and strong adaptability, so that the operator can complete the straightening task more conveniently and quickly.

[0053] The above are only preferred embodiments of the present application, and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A long-axis screw correction device, characterized in that: Used for straightening a long axis (6) to be straightened, the device comprises: Base (10); A mobile hydraulic platform (3) is slidably disposed on the base (10); A first support, fixed to one end of the base (10); a second support fixed to the other end of the base (10), the mobile hydraulic platform (3) being located between the first support and the second support, wherein the second support, the first support and the mobile hydraulic platform (3) are located on the same side of the base (10); A centering three-axis chuck structure (2) is rotatably disposed in the first support; A center top (9) is disposed through the second support, the center top (9) is coaxial with the centering three-axis chuck structure (2), and the long axis (6) to be straightened is limited between the centering three-axis chuck structure (2) and the center top (9); A measuring tool (5) is provided on both sides of the movable hydraulic platform (3). When the long axis is straightened, the measuring tool (5) contacts the long axis (6) to be straightened.

2. The long-axis screw correction device according to claim 1, characterized in that: The mobile hydraulic platform (3) comprises: Top plate (301); Two side plates (302) are arranged opposite to each other and are respectively connected to one side of the top plate (301) facing the base (10), and both of the side plates (302) are slidably matched with the base (10); A hydraulic cylinder (303) is arranged on a side of the top plate (301) facing the base (10), and the hydraulic cylinder (303) has a hydraulic head arranged toward the long axis (6) to be straightened, and the hydraulic head has a telescopic freedom in the height direction of the mobile hydraulic platform (3).

3. The long-axis screw rod correction device according to claim 2, characterized in that: The ends of the two side plates (302) facing the base (10) are both provided with roller mounting plates (304), and each roller mounting plate (304) is mounted with a roller (305), and the roller (305) rolls in contact with the surface of the base (10).

4. The long-axis screw rod correction device according to claim 3, characterized in that: The base (10) comprises: A first horizontal plate (1001), the roller (305) rollingly engaging with the first horizontal plate (1001); A second horizontal plate (1002) is located on a side of the first horizontal plate (1001) facing the top plate (301), and a matching groove (1004) is provided on a side of the second horizontal plate (1002) facing the top plate (301); The vertical plate (1003) is connected between the first horizontal plate (1001) and the second horizontal plate (1002), and the first horizontal plate (1001), the second horizontal plate (1002) and the vertical plate (1003) form a structure with an "I"-shaped cross section.

5. The long-axis screw rod correction device according to claim 4, characterized in that: The long-axis screw rod correction device also includes: An adjustable supporting sliding block (7) has one end engaged in the engaging groove (1004) and the other end engaged with the long axis (6) to be straightened.

6. The long-axis screw rod correction device according to claim 5, characterized in that: The adjustable support slider (7) comprises: A limiting plate (701) is matched in the matching groove (1004); A connecting plate (702), one end of which is connected to a side of the limiting plate (701) facing the top plate (301); A transition plate (703) connected to an end of the connecting plate (702) facing away from the limiting plate (701); The matching plate (704) is connected to the side of the transition plate (703) facing away from the connecting plate (702), and the side of the matching plate (704) facing the hydraulic cylinder (303) is arranged as an arc surface, and the arc surface fits the long axis (6) to be straightened.

7. The long-axis screw rod correction device according to claim 4, characterized in that: The long-axis screw rod correction device also includes: The two limit sliders (11) are respectively fixed on opposite sides of the two side plates (302), and the two limit sliders (11) are located on the same horizontal plane. The two limit sliders (11) are attached to the side of the second horizontal plate (1002) facing away from the top plate (301).

8. The long-axis screw rod correction device according to claim 1, characterized in that: The centering three-axis chuck structure (2) comprises: A rotating shaft (201), located on a side of the first support away from the second support and passing through the first support, the rotating shaft (201) being rotatably matched with the first support; A hand wheel (1) connected to an end of the rotating shaft (201) away from the second support; A claw (202) is fixed to one end of the rotating shaft (201) passing through the first support.

9. The long-axis screw rod correction device according to claim 4, characterized in that: The long-axis screw rod correction device also includes: The roller support seat (8) has one end that is in rolling engagement with the long axis (6) to be straightened, and the other end that is limited in the engagement groove (1004).

10. The long-axis screw rod correction device according to claim 9, characterized in that: The roller support seat (8) comprises: The bottom plate (801) is limitedly located in the matching groove (1004); A connecting block (802), connected to the bottom plate (801); A roller mounting frame (803) is fixed to the connecting block (802), and one end of the roller mounting frame (803) close to the long axis (6) to be straightened is arranged as a bifurcated structure; A rotating wheel (804), each of the forked structures is equipped with a rotating wheel (804), and the rotating wheel (804) has the freedom to rotate around its axis.

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