Guide rail straightening device

Abstract

The utility model discloses a guide rail straightening device, including the straightening station of symmetrical arrangement three jaw chuck, the lower extreme of straightening station is equipped with adjustable support assembly, its upper end surface is equipped with the moving groove of along the extension of straightening direction, the lateral wall fixed mounting of straightening station has rotary drive source, is equipped with the moving assembly of synchronous drive by rotary drive source in the moving groove to the guide mechanism of linkage with moving assembly, and the recess is set up in the upper surface of the moving end of moving assembly, is equipped with the opening and closing subassembly in the recess, and the stand column part of the execution end of opening and closing subassembly is connected perpendicularly to the portal, and the first bearing seat is installed to the lower surface of the crossbeam part of portal, and the second bearing seat is installed to the upper surface of execution end, and the shaft is rotatably connected between the first bearing seat and the second bearing seat, and the straightening wheel for abutting the curved surface of the guide rail to be straightened is fixedly connected to the outer wall of the shaft, and the opening and closing subassembly drives the horizontal movement of portal, is used for adjusting the contact pressure of straightening wheel to guide rail.

Description

Technical Field

[0001] This utility model relates to the field of guide rail technology, specifically a guide rail straightening device. Background Technology

[0002] In industrial production, guide rails are a key component of mechanical equipment and are widely used in machine tools, automated production lines, rail transportation and other fields. Their straightness and surface flatness directly affect the operating accuracy and lifespan of the equipment. However, due to factors such as processing errors, transportation deformation or long-term load, guide rails often have defects such as bending and twisting, which need to be repaired through straightening processes.

[0003] In the existing technology, traditional guide rail straightening methods mainly rely on manual tapping or hydraulic presses for straightening. The point-like force application of manual tapping or hydraulic presses can lead to stress concentration. Especially when straightening long guide rails, due to the lack of a real-time deformation feedback mechanism, it is difficult for operators to quantify the straightening range, which can easily lead to a wavy residual stress distribution. This non-uniform force may induce micro-cracks and reduce the fatigue life of the guide rail. Utility Model Content

[0004] The purpose of this invention is to provide a guide rail straightening device to solve the problem mentioned in the background art that traditional guide rail straightening relies on manual hammering or hydraulic presses, which cause stress concentration due to point force application, induce micro-cracks and reduce fatigue life.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a guide rail straightening device, comprising a straightening table with symmetrically arranged three-jaw chucks, an adjustable support assembly at the lower end of the straightening table, a moving groove extending along the straightening direction on its upper surface, a rotary drive source fixedly installed on the side wall of the straightening table, a moving assembly synchronously driven by the rotary drive source in the moving groove, and a guide mechanism linked with the moving assembly, a groove being formed on the upper surface of the moving end of the moving assembly, an opening and closing assembly being provided in the groove, the execution end of the opening and closing assembly being vertically connected to the column of the gantry, a first bearing seat being installed on the lower surface of the crossbeam of the gantry, and a second bearing seat being correspondingly installed on the upper surface of the execution end, a rotating shaft being coaxially rotatably connected between the first bearing seat and the second bearing seat, and a straightening wheel for abutting against the curved surface of the guide rail being straightened being fixedly connected to the outer wall of the rotating shaft; the opening and closing assembly drives the gantry to move horizontally to adjust the contact pressure of the straightening wheel on the guide rail, and the coordinated work of the rotary drive source, the moving assembly and the guide mechanism is used to reciprocate the straightening wheel along the length of the guide rail to achieve the straightening of the guide rail.

[0006] In a preferred embodiment of this technical solution, the moving component includes a third bearing housing disposed on the inner wall of the moving groove, a reciprocating screw rotatably connected to the output shaft of the rotary drive source is disposed within the third bearing housing, and a moving seat is threadedly connected to the outer wall of the reciprocating screw.

[0007] In a preferred embodiment of this technical solution, the guiding mechanism includes a slide rail disposed at the bottom of the movable groove, a slider slidably connected on the slide rail, and the upper end face of the slider being fixedly connected to the lower end face of the movable seat.

[0008] According to the preferred embodiment of this technical solution, the opening and closing component includes a fourth bearing seat disposed on the inner wall of the groove, a bidirectional lead screw rotatably connected inside the fourth bearing seat, an adjusting seat threadedly connected to the outer wall of the bidirectional lead screw, and a knob fixedly connected to the end of the bidirectional lead screw extending to the outside of the movable seat.

[0009] In a preferred embodiment of this technical solution, a guide slide rod is also fixedly connected within the groove, and the outer wall of the guide slide rod is slidably connected to the adjusting seat.

[0010] In a preferred embodiment of this technical solution, the support component includes a bracket disposed on the lower end face of the straightening table. The bracket is internally threaded with a screw rod, one end of which is provided with a throttle handle, and the other end of which is provided with a support foot.

[0011] In the preferred embodiment of this technical solution, the outer wall of the straightening wheel is provided with a convex ring that matches the guide rail recess, and the surface of the convex ring is covered with rubber.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. The combination of reciprocating lead screw and guide mechanism ensures that the straightening wheel moves linearly along the length of the guide rail without deviation, realizing reciprocating straightening and avoiding the problems of traditional segmented straightening; 2. The opening and closing assembly driven by the bidirectional screw can be manually adjusted by the knob to control the contact pressure of the straightening wheel on the guide rail, adapting to guide rails with different degrees of curvature. The operation is intuitive and requires no additional tools. 3. The adjustable support assembly enables rapid adjustment of the straightening table height through the cooperation of screws and feet, adapting to different ground conditions. At the same time, the rubber feet effectively absorb shock and reduce vibration during equipment operation. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of one embodiment of the guide rail straightening device of this utility model; Figure 2 This is a schematic diagram of the structure of the mobile component of this utility model; Figure 3 This is a schematic diagram of the opening and closing component of this utility model; Figure 4 This is a schematic diagram of the straightening wheel of this utility model; Figure 5 This is a schematic diagram of the structure of the support component of this utility model.

[0014] In the diagram: 1. Three-jaw chuck; 2. Straightening table; 3. Moving slot; 4. Rotary drive source; 5. Groove; 6. Gantry; 7. First bearing seat; 8. Second bearing seat; 9. Rotary shaft; 10. Straightening wheel; 11. Third bearing seat; 12. Reciprocating lead screw; 13. Moving seat; 14. Slide rail; 15. Slider; 16. Fourth bearing seat; 17. Bidirectional lead screw; 18. Adjusting seat; 19. Knob; 20. Guide slide rod; 21. Bracket; 22. Screw; 23. Rotary handle; 24. Support leg; 25. Convex ring. Detailed Implementation

[0015] 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.

[0016] Please see Figures 1-5This utility model provides an embodiment: a guide rail straightening device, including a straightening table 2 with symmetrically arranged three-jaw chucks 1, an adjustable support component at the lower end of the straightening table 2, a moving groove 3 extending along the straightening direction on its upper end surface, a rotary drive source 4 fixedly installed on the side wall of the straightening table 2, a moving component synchronously driven by the rotary drive source 4 in the moving groove 3, and a guide mechanism linked with the moving component, a groove 5 is opened on the upper surface of the moving end of the moving component, an opening and closing component is provided in the groove 5, the execution end of the opening and closing component is vertically connected to the column part of the gantry 6, a first bearing seat 7 is installed on the lower surface of the crossbeam part of the gantry 6, a second bearing seat 8 is correspondingly installed on the upper surface of the execution end, a rotating shaft 9 is coaxially rotatably connected between the first bearing seat 7 and the second bearing seat 8, and a straightening wheel 10 for abutting against the curved surface of the guide rail to be straightened is fixedly connected to the outer wall of the rotating shaft 9;The opening and closing assembly drives the gantry 6 to move horizontally, adjusting the contact pressure of the straightening wheel 10 on the guide rail. The coordinated operation of the rotary drive source 4, the moving assembly, and the guiding mechanism is used to reciprocate the straightening wheel 10 along the length of the guide rail, thus straightening the guide rail. The straightening table 2, as the support structure of the guide rail straightening device, is made of high-strength metal material, such as Q345 steel, and is welded into a stable platform. The three-jaw chuck 1 can be manual or hydraulic. The manual three-jaw chuck 1 is operated by rotating the handle on the chuck, causing the three jaws to move simultaneously towards the center or open outward, thereby clamping or releasing the guide rail. The hydraulic three-jaw chuck 1 controls the movement of the jaws through a hydraulic system, offering advantages such as large clamping force and convenient operation. The three-jaw chuck 1 can firmly fix the guide rail to be straightened, preventing it from moving during the straightening process. The adjustable support assembly adjusts the height of the straightening table 2 to adapt to different working environments and operational requirements. The rotary drive source 4 uses an AC servo motor or stepper motor, which has advantages such as high precision and convenient control. The moving component is synchronously driven by the rotary drive source 4. When the rotary drive source 4 is started, it realizes the reciprocating movement of the moving end. The function of the moving component is to convert the rotational motion of the rotary drive source 4 into linear motion, driving the straightening wheel 10 to move along the length of the guide rail to perform a straightening operation on the guide rail. When the moving component moves, the guide mechanism provides guidance for the movement of its moving end, preventing the moving end from deviating during the movement and ensuring that the straightening wheel 10 can move accurately along the straightening direction. When the opening and closing assembly... When the component moves, it drives the gantry 6 to move horizontally. The gantry 6 consists of a column and a crossbeam, made of metal materials such as aluminum alloy or carbon steel, and manufactured through welding. The first bearing seat 7 and the second bearing seat 8 use rolling bearings, such as deep groove ball bearings or angular contact ball bearings. The first bearing seat 7 and the second bearing seat 8 provide rotational support for the rotating shaft 9, ensuring that the rotating shaft 9 can rotate smoothly. A straightening wheel 10 is fixedly connected to the outer wall of the rotating shaft 9, connecting the straightening wheel 10 to the gantry 6, so that the straightening wheel 10 can rotate with the rotating shaft 9. The straightening wheel 10 is used to abut against the curved surface of the receiving straightening guide rail. Made of high-strength alloy steel, when the moving component drives the straightening wheel 10 to move along the length of the guide rail, the straightening wheel 10 contacts the curved surface of the guide rail. Through rotation and the application of pressure, the guide rail is straightened. The opening and closing component drives the gantry 6 to move horizontally, adjusting the contact pressure of the straightening wheel 10 on the guide rail to adapt to the straightening requirements of guide rails with different degrees of curvature. Through the coordinated work of the rotation drive source 4, the moving component, and the guiding mechanism, the straightening wheel 10 can accurately move back and forth along the length of the guide rail. Simultaneously, the opening and closing component adjusts the contact pressure of the straightening wheel 10 on the guide rail, thus achieving the straightening of the guide rail.

[0017] Please see Figures 1-2A further solution based on this embodiment is as follows: The moving component includes a third bearing seat 11 disposed on the inner wall of the moving groove 3. A reciprocating screw 12, which is rotatably connected to the output shaft of the rotary drive source 4, is rotatably connected inside the third bearing seat 11. A moving seat 13 is threadedly connected to the outer wall of the reciprocating screw 12. The third bearing seat 11 is made of metal, such as copper alloy, and has rolling bearings, such as deep groove ball bearings, installed inside. The third bearing seat 11 provides rotational support for the reciprocating screw 12, ensuring that the reciprocating screw 12 can rotate smoothly and steadily. The reciprocating screw 12 has a special thread structure. When the rotary drive source 4 drives the reciprocating screw 12 to rotate smoothly, the reciprocating screw 12 rotates smoothly and steadily. When the reciprocating screw 12 rotates, the moving seat 13 will reciprocate linearly along the moving groove 3 under the action of the thread of the reciprocating screw 12. This reciprocating motion design enables the straightening wheel 10 to perform back-and-forth straightening operation along the length of the guide rail, improving the uniformity and effect of straightening. The moving seat 13 is made of metal, such as aluminum alloy, and is engaged with the reciprocating screw 12 through threads. The upper end face of the moving seat 13 is used to install opening and closing components and other parts. When the reciprocating screw 12 rotates, the moving seat 13 moves along the slide rail 14 at the bottom of the moving groove 3 under the drive of the reciprocating screw 12, realizing the reciprocating movement of the straightening wheel 10.

[0018] Please see Figures 1-2 A further solution based on this embodiment is as follows: The guiding mechanism includes a slide rail 14 disposed at the bottom of the moving groove 3, and a slider 15 is slidably connected on the slide rail 14. The upper end face of the slider 15 is fixedly connected to the lower end face of the moving seat 13. The slide rail 14 is fixed to the bottom of the moving groove 3 by welding or bolting. The slide rail 14 has a smooth surface and precise dimensions, providing guidance for the sliding of the slider 15. When the moving seat 13 moves under the drive of the reciprocating screw 12, the slider 15 slides along the slide rail 14, providing guidance for the movement of the moving seat 13, preventing the moving seat 13 from deviating during the movement, and ensuring that the moving seat 13 can accurately perform reciprocating linear motion along the moving groove 3.

[0019] Please see Figure 1 and Figure 3A further embodiment of this solution is as follows: the opening and closing assembly includes a fourth bearing seat 16 disposed on the inner wall of the groove 5. A bidirectional lead screw 17 is rotatably connected inside the fourth bearing seat 16. An adjusting seat 18 is threadedly connected to the outer wall of the bidirectional lead screw 17. The end of the bidirectional lead screw 17 extends to the outside of the movable seat 13 and is fixedly connected to a knob 19. The fourth bearing seat 16 is made of metal, such as copper alloy, and has a rolling bearing, such as a deep groove ball bearing, installed inside. The fourth bearing seat 16 provides rotational support for the bidirectional lead screw 17, ensuring that the bidirectional lead screw 17 can rotate stably. The bidirectional lead screw 17 has two threads in opposite directions. When the bidirectional lead screw 17 is rotated, the threads are connected to the bidirectional lead screw 17. The two adjusting seats 18 can move simultaneously to the middle or to both ends. The adjusting seats 18 are made of metal, such as aluminum alloy. When the bidirectional lead screw 17 rotates, the adjusting seats 18 slide along the guide slide 20 under the drive of the bidirectional lead screw 17, driving the gantry 6 to move horizontally, thereby adjusting the contact pressure of the straightening wheel 10 on the guide rail. The knob 19 is made of plastic, such as polypropylene (PP), and is integrally formed with the end of the bidirectional lead screw 17 through injection molding. The outer circumference of the knob 19 is provided with anti-slip texture, which can increase the friction between the operator's hand and the knob 19, making it easy for the operator to rotate the knob 19, thereby driving the bidirectional lead screw 17 to rotate and realize the horizontal movement of the adjusting seats 18.

[0020] Please see Figure 1 and Figure 3 A further solution based on this embodiment is as follows: a guide slide rod 20 is also fixedly connected in the groove 5. The outer wall of the guide slide rod 20 is slidably connected to the adjusting seat 18. The guide slide rod 20 is made of metal, such as stainless steel, and is fixed to the inner wall of the groove 5 by welding or bolting. The outer wall of the guide slide rod 20 is slidably connected to the adjusting seat 18 to provide guidance for the movement of the adjusting seat 18, prevent the adjusting seat 18 from deviating during the movement, and ensure that the adjusting seat 18 can accurately move in a straight line along the bidirectional lead screw 17.

[0021] Please see Figure 1 and Figure 5 A further solution based on this embodiment is as follows: The support assembly includes a bracket 21 disposed on the lower end face of the straightening table 2. A screw 22 is internally threaded onto the bracket 21. A handle 23 is disposed at one end of the screw 22, and a foot 24 is disposed at the other end of the screw 22. The bracket 21 is made of metal, such as carbon steel, and is fixed to the lower end face of the straightening table 2 by welding. The bracket 21 provides installation support space for the screw 22. The screw 22 is made of stainless steel. By rotating the handle 23, the screw 22 can be rotated within the bracket 21, thereby allowing the screw 22 to move up and down within the bracket 21 to adjust the height of the foot 24. The foot 24 is made of rubber or metal with a rubber coating. Rubber has good elasticity and shock absorption performance. The foot 24 is in contact with the ground and can absorb the vibration generated during the operation of the straightening device, reducing the impact of vibration on the ground.

[0022] Please refer to 4. A further solution based on this embodiment is as follows: The outer wall of the straightening wheel 10 is provided with a convex ring 25 that is adapted to the guide rail recess. The surface of the convex ring 25 is covered with rubber. The convex ring 25 is made of the same metal material as the straightening wheel 10 and is fixed to the outer wall of the straightening wheel 10 by integral molding or welding process. The design of the convex ring 25 enables the straightening wheel 10 to contact the guide rail recess more accurately, thereby improving the straightening effect. The rubber has good elasticity and wear resistance. The rubber can reduce the damage to the guide rail surface during the straightening process and protect the surface quality of the guide rail.

[0023] Working principle: First, place the guide rail to be straightened on the straightening table 2, and fix it with a manual or hydraulic three-jaw chuck 1. If a manual three-jaw chuck 1 is used, the operator rotates the handle on the chuck to move the three jaws towards the center at the same time to clamp the guide rail. If a hydraulic three-jaw chuck 1 is used, the movement of the jaws is controlled by the hydraulic system to clamp the guide rail, ensuring that the guide rail will not move during the straightening process. Next, by rotating the handle 23 on the bracket 21 in the rotating support assembly, the screw 22 is driven to rotate inside the bracket 21, so that the screw 22 moves up and down to adjust the height of the support leg 24, thereby adjusting the straightening table 2 to a suitable height; Then, the rotary drive source 4 is started, and its output shaft drives the reciprocating screw 12 to rotate smoothly and steadily under the support of the third bearing seat 11. Due to the special thread structure of the reciprocating screw 12, the moving seat 13 will make reciprocating linear motion along the slide rail 14 at the bottom of the moving groove 3 under the action of the thread. At the same time, the slide rail 14 at the bottom of the moving groove 3 cooperates with the slider 15 to provide precise guidance for the movement of the moving seat 13, prevent it from deviating, and ensure that the moving seat 13 can move accurately along the moving groove 3. The groove 5 on the upper end face of the moving seat 13 is provided with an opening and closing component. The operator rotates the knob 19 at the end of the bidirectional screw 17 in the opening and closing component, which drives the bidirectional screw 17 to rotate in the fourth bearing seat 16. The two opposite threads of the bidirectional screw 17 cause the two adjusting seats 18 to move to the middle or to both ends at the same time. The adjusting seats 18 slide along the guide slide 20, which drives the gantry 6 to move horizontally, thereby adjusting the contact pressure of the straightening wheel 10 on the guide rail to adapt to the straightening requirements of guide rails with different degrees of curvature. When the moving component drives the moving seat 13, opening and closing components, gantry 6, straightening wheel 10 and other components to move along the length of the guide rail, the straightening wheel 10 contacts the curved surface of the guide rail and performs a straightening operation on the guide rail by rotating and applying pressure, thereby achieving uniform and efficient straightening of the guide rail.

[0024] 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, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A guide rail straightening device comprising a straightening table (2) provided with a three-jaw chuck (1) arranged symmetrically; characterized in that: The lower end of the straightening table (2) is provided with an adjustable support assembly, and the upper end surface is provided with a moving groove (3) extending along the straightening direction. A rotary drive source (4) is fixedly installed on the side wall of the straightening table (2). The moving groove (3) is provided with a moving assembly synchronously driven by the rotary drive source (4) and a guide mechanism linked with the moving assembly. A groove (5) is opened on the upper surface of the moving end of the moving assembly. An opening and closing assembly is provided in the groove (5). The execution end of the opening and closing assembly is vertically connected to the column part of the gantry (6). A first bearing seat (7) is installed on the lower surface of the crossbeam part of the gantry (6). A second bearing seat (8) is correspondingly installed on the upper surface of the execution end. A rotating shaft (9) is coaxially rotatably connected between the first bearing seat (7) and the second bearing seat (8). A straightening wheel (10) for abutting against the curved surface of the straightening guide rail is fixedly connected to the outer wall of the rotating shaft (9). The opening and closing component drives the gantry (6) to move horizontally, which is used to adjust the contact pressure of the straightening wheel (10) on the guide rail. The coordinated work of the rotation drive source (4), the moving component and the guide mechanism is used to move the straightening wheel (10) back and forth along the length of the guide rail to achieve the straightening of the guide rail.

2. A guide rail straightening device according to claim 1, characterized in that: The moving component includes a third bearing seat (11) disposed on the inner wall of the moving groove (3), and a reciprocating screw (12) connected to the output shaft of the rotary drive source (4) is rotatably connected inside the third bearing seat (11). A moving seat (13) is threadedly connected to the outer wall of the reciprocating screw (12).

3. A guide rail straightening device according to claim 2, characterized in that: The guiding mechanism includes a slide rail (14) set at the bottom of the moving groove (3), a slider (15) slidably connected on the slide rail (14), and the upper end face of the slider (15) is fixedly connected to the lower end face of the moving seat (13).

4. A guide rail straightening device according to claim 3, characterized in that: The opening and closing assembly includes a fourth bearing seat (16) disposed on the inner wall of the groove (5), a double-acting screw (17) is rotatably connected in the fourth bearing seat (16), an adjusting seat (18) is threadedly connected to the outer wall of the double-acting screw (17), and the end of the double-acting screw (17) extends to the outside of the movable seat (13) and is fixedly connected to a knob (19).

5. A guide rail straightening device according to claim 4, characterized in that: A guide slide rod (20) is also fixedly connected inside the groove (5), and the outer wall of the guide slide rod (20) is slidably connected to the adjusting seat (18).

6. A guide rail straightening device according to claim 5, characterized in that: The support assembly includes a bracket (21) set on the lower end face of the straightening table (2), a screw (22) is internally threaded onto the bracket (21), a throttle (23) is provided at one end of the screw (22), and a foot (24) is provided at the other end of the screw (22).

7. A guide rail straightening device according to claim 6, characterized in that: The outer wall of the straightening wheel (10) is provided with a convex ring (25) that matches the guide rail recess, and the surface of the convex ring (25) is covered with rubber skin.

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