Guide rail processing device

Abstract

The invention discloses a guide rail processing device, which belongs to the field of guide rail surface processing, and comprises a workbench, an X-axis moving unit arranged on both sides of the workbench, a Y-axis moving unit fixedly connected to the moving end of the X-axis moving unit, a Z-axis moving unit fixedly connected to the moving end of the Y-axis moving unit, and a guide rail surface rolling processing unit fixedly connected to the moving end of the Z-axis moving unit; the outer surface of the guide rail is polished during the rolling processing, so that tiny defects and initial stress concentration points on the surface can be removed, so that the surface stress distribution is more uniform, and the surface can be made smoother, and the possibility of stress concentration during the rolling process can be reduced, thereby reducing the initial stress; grinding is performed synchronously during the rolling process, so that the hardened layer formed after rolling can be removed, so that the surface hardness is kept within a reasonable range, excessive hardening is prevented, the guide rail surface is smoother, and friction and wear are reduced.

Description

Technical Field

[0001] The invention relates to the field of guide rail surface processing, and more specifically, to a guide rail processing device. Background Art

[0002] A guide rail is a mechanical device used to support and guide moving parts to make linear motion in a given direction. It is used to ensure that machine parts can move accurately and smoothly. The guide rail is an important component of the bridge cutting machine. The bridge cutting machine is used for cutting stone materials, and the guide rail plays a key supporting and guiding role, providing stable support for the cutting machine, so that the tool and workbench remain stable during the cutting process, thereby improving the cutting accuracy and quality.

[0003] In the process of producing and processing the guide rail, the surface of the guide rail needs to be rolled, which can fill the tiny pits and scratches on the surface of the guide rail, make the surface achieve a mirror effect, significantly improve the finish, reduce the wear caused by the friction between the guide rail and other moving parts, and improve the movement accuracy and efficiency. In the process of rolling, the surface of the guide rail will undergo work hardening, making the surface of the guide rail more fragile, affecting subsequent processing. The prior art (a Chinese invention patent disclosed in the announcement number CN114515937B) discloses an electric pulse assisted rolling processing platform, which introduces a pulse electric field in the rolling process to inhibit work hardening, obtain a high-quality metal surface strengthening layer, and improve the comprehensive properties of metal materials such as wear resistance and fatigue resistance;

[0004] Introducing a pulsed electric field into the workpiece during rolling processing can increase the plasticity of the material, making it easier to deform during processing and reducing work hardening. This effect significantly improves the intrinsic properties of the material (such as toughness and fatigue resistance). The Joule heat generated by the pulsed current softens the material, reduces deformation resistance, and thus reduces residual stress and work hardening. This thermal effect mainly affects the internal structure of the material. However, since the guide surface requires very high smoothness and precision, as well as good wear resistance and a low friction coefficient, although the pulsed current of the prior art can improve the intrinsic properties of the material by reducing work hardening and residual stress, the effect of improving the surface smoothness is relatively limited. Summary of the invention

[0005] In view of the problems existing in the prior art, an object of the present invention is to provide a guide rail processing device.

[0006] To solve the above problems, the present invention adopts the following technical solutions.

[0007] A guide rail processing device, comprising a workbench, an X-axis moving unit arranged on both sides of the workbench, a Y-axis moving unit fixedly connected to a moving end of the X-axis moving unit, a Z-axis moving unit fixedly connected to a moving end of the Y-axis moving unit, and a guide rail surface rolling processing unit fixedly connected to a moving end of the Z-axis moving unit;

[0008] The guide rail surface rolling processing unit includes a positioning seat 1 fixedly connected to the moving end of the Z-axis moving unit, a positioning seat 2 screwed to one side of the positioning seat 1 by bolts, a rolling part rotatably connected between the positioning seat 1 and the positioning seat 2, a driving component fixed to the outer surface of one side of the positioning seat 2 for driving the rolling part to rotate, a needle roller rotatably connected to the lower end of the rolling part, a grinding block connected to the lower end of the rolling part, and a positioning frame screwed to the upper ends of the positioning seat 1 and the positioning seat 2 and used to limit the rolling part.

[0009] Furthermore, a movable cavity is opened inside the rolling part, and a guide column is fixedly connected to the inner wall of the movable cavity, a spring is movably sleeved on the outer surface of the guide column, the grinding block is movably sleeved on the outside of the guide column, and the two ends of the spring are respectively connected to the grinding block and the inner wall of the movable cavity, the lower end of the rolling part is also clamped with a bottom cover, and the lower end of the grinding block and the roller needle both penetrate the bottom cover and extend outward.

[0010] Furthermore, the Y-axial moving unit includes two support seats symmetrically fixed on the moving end of the X-axial moving unit, a connecting plate connected to the two support seats at both ends, a motor 1 fixed to one side of one of the support seats, a screw rod 1 rotatably connected between the two support seats, a screw sleeve screwed on the outside of the screw rod 1, and a slide rail fixed to one side of the connecting plate, the output shaft of the motor 1 passes through one of the support seats and is fixed to one end of the screw rod 1, one side of the Z-axial moving unit is fixed to one side of the screw sleeve, and one side of the Z-axial moving unit is slidably connected to the slide rail.

[0011] Furthermore, a pre-deformation processing unit is arranged between the two support seats, and the pre-deformation processing unit includes a screw rod 2 rotatably connected to the inside of one of the support seats, an adjustment seat 1 movably connected to the inside of one of the support seats and screwed to the outside of the screw rod 2, a guide rod 1 fixed to the inside of the other support seat, a guide seat 1 movably connected to the inside of the other support seat and movably sleeved on the outside of the guide rod 1, and a rolling roller 1 whose two ends are rotatably connected to the adjustment seat 1 and the guide seat 1 respectively.

[0012] Furthermore, a plurality of evenly distributed flanges are integrally formed on an outer surface of the rolling roller.

[0013] Furthermore, a pre-deformation resistance reduction unit is also arranged between the two support seats, and the pre-deformation resistance reduction unit includes an induction heating part whose two ends are respectively fixed to the two support seats, a screw rod three rotatably connected to one of the support seats, an adjustment seat two movably connected to one of the support seats and screwed to the outside of the screw rod three, a guide rod two fixed to the other support seat, a guide seat two movably connected to the other support seat and movably sleeved on the outside of the guide rod two, and a rolling roller two whose two ends are respectively rotatably connected to the adjustment seat two and the guide seat two.

[0014] Furthermore, a stress averaging unit is arranged outside the rolling part, and the stress averaging unit includes a conductive slip ring sleeved on the outer surface of the rolling part, an ultrasonic transducer fixedly connected to one side of the conductive slip ring, and a fixing ring connected to the lower end of the ultrasonic transducer and fixedly connected to the outer surface of the rolling part. An ultrasonic generator is fixedly connected to the outer surface of one side of the positioning seat, and the ultrasonic generator is linearly connected to the ultrasonic transducer. The conductive slip ring includes a stator fixedly connected to the outer surface of the rolling part and a rotor rotatably connected to the stator, and the ultrasonic transducer is fixedly connected to the lower end of the rotor.

[0015] Furthermore, both the positioning seat 1 and the positioning seat 2 are provided with limiting grooves, and the inner walls of the limiting grooves are rotatably connected with balls, the balls are movably connected to the outer surface of the rolling part, a bearing is also connected to the outer surface of the rolling part, and the inner ring of the bearing is fixedly connected to the outer surface of the rolling part, the outer ring of the bearing is fixedly connected to the inner walls of the positioning seat 1 and the positioning seat 2, and a slot is provided at the upper end of the rolling part.

[0016] Furthermore, the driving assembly includes a second motor fixedly connected to the outer surface of one side of the second positioning seat, a synchronous wheel one fixedly connected to the output shaft of the second motor, a synchronous wheel two rotatably connected to the lower end of the positioning frame, a synchronous belt connecting the first synchronous wheel with the second synchronous wheel, and an extension end integrally formed at the lower end of the second synchronous wheel and inserted into the slot.

[0017] Furthermore, a hollow groove is provided inside the rolling part, a rotating joint is fixedly connected to the upper end of the positioning frame, and the inner tube of the rotating joint passes through the positioning frame and the second synchronous wheel and is inserted into the hollow groove, an electromagnet for sucking the workpiece is fixedly connected inside the workbench, and a drainage groove is also provided inside the workbench.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] (1) This solution is provided with a guide rail surface rolling processing unit. By integrating a grinding block at the bottom of the rolling part, the outer surface of the guide rail is polished during the rolling process, which can remove tiny surface defects and initial stress concentration points, making the surface stress distribution more uniform and making the surface smoother, reducing the possibility of stress concentration during the rolling process, thereby reducing the initial stress. Grinding is performed simultaneously during the rolling process to remove the hardened layer formed after rolling, so that the surface hardness is maintained within a reasonable range and excessive hardening is prevented. Moreover, rolling and grinding are performed simultaneously, and the thickness of the surface hardened layer can be dynamically adjusted to maintain the uniformity of the surface layer and the internal material. This can effectively reduce the initial stress and hardened layer on the surface, further improve the surface finish, make the guide rail surface smoother, and reduce friction and wear.

[0020] (2) This scheme is provided with a pre-deformation treatment unit, which can apply pressure to the surface of the guide rail through the roller to cause plastic deformation of the surface, and is used to introduce a certain pre-deformation before the formal rolling of the guide rail surface. Through the pre-deformation treatment, the surface of the workpiece has undergone the initial plastic deformation process and has produced partial hardening. Therefore, during the formal rolling, since the material has been partially hardened, the further hardening effect will be relatively reduced, so that the material can gradually adapt to the deformation and reduce the severe hardening caused by a single large deformation caused by direct rolling. The pre-deformation treatment can make the stress distribution inside the material more uniform and reduce the stress concentration phenomenon. In this way, during the formal rolling, the surface of the material will not be subjected to excessive local stress, thereby reducing the hardening effect. At the same time, it will change the microstructure of the material, increase the dislocation density, make the material easier to slip during subsequent deformation, and reduce the difficulty of further hardening.

[0021] (3) This scheme is provided with a pre-deformation resistance reduction unit. When the pre-deformation unit applies pressure to the outer surface of the guide rail, although the flange on the outer surface can avoid the occurrence of unexpected stress concentration at the edge and non-uniform parts of the material, there will be uneven areas on the surface of the guide rail. By applying pressure to the guide rail surface for the second time by the roller, the surface grain structure can be further refined, the surface hardness and wear resistance can be improved, and these irregular parts can be smoothed, which can significantly improve the surface finish and reduce the surface roughness. In addition, during the two pre-deformation pressure processes on the guide rail, heating the guide rail by the induction heating unit can reduce the flow resistance of the material and reduce the pressure requirement. Heating during the second pressure application helps to relieve the internal stress caused by deformation and reduce residual stress, thereby improving the service life and reliability of the guide rail. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The three-dimensional structure of the present invention is shown in FIG. Figure 1 ;

[0023] Figure 2 The three-dimensional structure of the present invention is shown in FIG. Figure 2 ;

[0024] Figure 3 It is a schematic diagram of the structure of the guide rail surface rolling processing unit of the present invention;

[0025] Figure 4 It is a schematic diagram of the structure of the ball, grinding block and ultrasonic generator of the present invention;

[0026] Figure 5 It is a schematic diagram of the drive assembly and slot structure of the present invention;

[0027] Figure 6 It is a schematic diagram of the stress averaging unit structure of the present invention;

[0028] Figure 7 is a cross-sectional view of a rolling portion of the present invention;

[0029] Figure 8 It is a schematic structural diagram of the pre-deformation processing unit and the pre-deformation resistance reduction unit of the present invention;

[0030] Fig. 9 For the present invention Figure 7 A schematic diagram of the enlarged structure in the middle.

[0031] Description of the numbers in the figure:

[0032] 1. Workbench; 11. Electromagnet; 12. Drainage trough; 2. X-axis moving unit; 3. Y-axis moving unit; 31. Support seat; 32. Connecting plate; 33. Motor 1; 34. Screw rod 1; 35. Slide rail; 4. Z-axis moving unit; 5. Guide rail surface rolling processing unit; 51. Positioning seat 1; 52. Positioning seat 2; 53. Driving assembly; 531. Motor 2; 532. Synchronous wheel 1; 533. Synchronous belt; 534. Synchronous wheel 2; 535. Extension end; 536. Bearing; 537. Ball; 538. Limiting groove; 54. Rolling part; 541. Slot; 542. Hollow groove; 543. Active cavity; 544. Guide column; 545. Spring; 546. Bottom cover; 55. Positioning frame; 56. Needle roller; 57. Grinding block; 6. Pre-deformation processing unit; 61. Screw rod two; 62. Adjustment seat one; 63. Roller one; 64. Flange; 65. Guide seat one; 66. Guide rod one; 7. Stress balancing unit; 71. Ultrasonic generator; 72. Conductive slip ring; 721. Stator; 722. Rotor; 73. Ultrasonic transducer unit; 74. Fixed ring; 8. Rotary joint; 9. Pre-deformation resistance reduction unit; 91. Induction heating unit; 92. Screw rod three; 93. Adjustment seat two; 94. Roller two; 95. Guide seat two; 96. Guide rod two. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0034] See also Figures 1 to 9 A guide rail processing device includes a workbench 1, an X-axial moving unit 2 arranged on both sides of the workbench 1, a Y-axial moving unit 3 fixedly connected to the moving end of the X-axial moving unit 2, a Z-axial moving unit 4 fixedly connected to the moving end of the Y-axial moving unit 3, and a guide rail surface rolling processing unit 5 fixedly connected to the moving end of the Z-axial moving unit 4, an electromagnet 11 for sucking a workpiece is fixedly connected to the workbench 1, and a drainage groove 12 is also opened in the workbench 1.

[0035] The guide rail surface rolling processing unit 5 includes a positioning seat 1 51 fixedly connected to the moving end of the Z-axis moving unit 4, a positioning seat 2 52 screwed to one side of the positioning seat 1 51 by bolts, a rolling part 54 rotatably connected between the positioning seat 1 51 and the positioning seat 2 52, a driving component 53 fixed to the outer surface of one side of the positioning seat 2 52 for driving the rolling part 54 to rotate, a needle roller 56 rotatably connected to the lower end of the rolling part 54, a grinding block 57 connected to the lower end of the rolling part 54, and a positioning frame 55 screwed to the upper ends of the positioning seat 1 51 and the positioning seat 2 52 and used to limit the rolling part 54.

[0036] A movable cavity 543 is defined inside the rolling portion 54, and a guide column 544 is fixedly connected to the inner wall of the movable cavity 543. A spring 545 is movably sleeved on the outer surface of the guide column 544. The grinding block 57 is movably sleeved on the outside of the guide column 544, and the two ends of the spring 545 are respectively connected to the grinding block 57 and the inner wall of the movable cavity 543. A bottom cover 546 is also clamped at the lower end of the rolling portion 54, and the lower end of the grinding block 57 and the roller needle 56 both penetrate the bottom cover 546 and extend outward.

[0037] The Y-axis moving unit 3 includes two support seats 31 symmetrically fixed on the moving end of the X-axis moving unit 2, a connecting plate 32 connected to the two support seats 31 at both ends, a motor 33 fixed to one side of one of the support seats 31, a screw rod 34 rotatably connected between the two support seats 31, a screw sleeve screwed on the outside of the screw rod 34, and a slide rail 35 fixed to one side of the connecting plate 32. The output shaft of the motor 33 passes through one of the support seats 31 and is fixed to one end of the screw rod 34. One side of the Z-axis moving unit 4 is fixed to one side of the screw sleeve, and one side of the Z-axis moving unit 4 is slidably connected to the slide rail 35. The motor 33 drives the screw rod 34 to rotate when it works, and the rotation of the screw rod 34 drives the screw sleeve and the Z-axis moving unit 4 to move, thereby adjusting the position of the rolling part 54.

[0038] By adopting the above technical scheme, the guide rail surface rolling processing unit 5 can be driven to move along the X-axis through the X-axial moving unit 2, and the guide rail surface rolling processing unit 5 can be driven to move along the Y-axis through the Y-axial moving unit 3, so as to adjust the XY-axis position of the guide rail surface rolling processing unit 5, and the height of the guide rail surface rolling processing unit 5 can be adjusted through the Z-axial moving unit 4, so that the bottom of the rolling part 54 can contact the guide rail surface on the workbench 1, and the guide rail is fixed by the electromagnet 11, and then the Z-axial moving unit 4 drives the rolling part 54 to descend, so that the grinding block 57 and the roller needle 56 contact the guide rail surface (because the grinding block 57 is movably sleeved on the outside of the guide column 544, and the spring 545 can apply a force to the grinding block 57 to push the bottom of the grinding block 57 to the guide rail. The advantage of this design is that when the grinding block 57 is worn out due to long-term use, the spring 545 can still push the grinding block 57 to make the bottom of the grinding block 57 contact the guide rail, avoiding In order to avoid the situation where the bottom of the grinding block 57 is worn and the grinding block 57 cannot contact the surface of the guide rail to grind the surface of the guide rail), the driving component 53 is controlled to work, and the driving component 53 drives the rolling part 54 to rotate, so that the needle roller 56 rotates to roll the surface of the guide rail, and at the same time, the grinding block 57 rotates and contacts with the surface of the guide rail to grind and polish the surface of the guide rail, which can remove tiny flaws and initial stress concentration points on the surface of the guide rail, make the surface stress distribution more uniform, and make the surface smoother, reduce the possibility of stress concentration during rolling, and thus reduce the initial stress. Grinding is performed simultaneously during the rolling process to remove the hardened layer formed after rolling, so that the surface hardness is kept within a reasonable range to prevent over-hardening, and rolling and grinding are performed simultaneously, and the thickness of the surface hardened layer can be dynamically adjusted to maintain the uniformity of the surface layer and the internal material, which can effectively reduce the initial stress and hardened layer on the surface, further improve the surface finish, make the surface of the guide rail smoother, and reduce friction and wear.

[0039] like Figure 1 and Figure 8As shown, a pre-deformation processing unit 6 is arranged between the two support seats 31, and the pre-deformation processing unit 6 includes a screw rod 61 rotatably connected inside one of the support seats 31, an adjustment seat 62 movably connected inside one of the support seats 31 and screwed to the outside of the screw rod 61, a guide rod 66 fixed inside the other support seat 31, a guide seat 65 movably connected inside the other support seat 31 and movably sleeved to the outside of the guide rod 66, and a roller 63 whose two ends are rotatably connected to the adjustment seat 62 and the guide seat 65 respectively. The outer surface of the roller 63 is integrally formed with a plurality of evenly distributed flanges 64.

[0040] By adopting the above technical solution, since the pre-deformation processing unit 6 is arranged between the two support seats 31, when the moving end of the X-axis moving unit 2 moves, it can not only drive the rolling part 54 to move, but also drive the pre-deformation processing unit 6 to move. The height of the roller 63 is adjusted by rotating the screw rod 2 61, so that the roller 63 can contact the guide rail surface. When the roller 63 moves and contacts the guide rail surface, the roller 63 rotates between the guide seat 1 65 and the adjustment seat 1 62, and pressure is applied to the guide rail surface to cause plastic deformation of the guide rail surface. The pre-deformation treatment is performed on the guide rail surface before formal rolling. Through the pre-deformation treatment, the surface of the workpiece has undergone the initial plastic deformation process and has produced partial hardening. During formal rolling, since the material has been partially hardened, the further hardening effect will be relatively The pre-deformation treatment can make the material gradually adapt to the deformation, reduce the severe hardening caused by a single large deformation caused by direct rolling, and make the stress distribution inside the material more uniform, reduce the stress concentration phenomenon, so that during the formal rolling, the material surface will not bear excessive local stress, thereby reducing the hardening effect, and at the same time change the microstructure of the material, increase the dislocation density, make the material easier to slip during subsequent deformation, and reduce the difficulty of further hardening. In order to avoid the occurrence of undesirable stress concentration on the edge and non-uniform part of the guide rail during the process of roller 63 applying pressure to the guide rail, multiple flanges 64 are provided on the outer surface of roller 63. The design of multiple flanges 64 enables roller 63 to distribute the pressure more evenly on the guide rail surface when it contacts the guide rail surface. This distribution can avoid stress concentration caused by excessive single-point pressure. Traditional smooth rollers contact the guide rail surface over a large area, which is easy to cause stress concentration at the edge and uneven places. The contact area between the roller 1 63 with the flange 64 and the guide rail surface is small, which can effectively disperse and reduce local pressure, thereby reducing stress concentration. The protrusion design makes the deformation concentrated in the area where the protrusion contacts the guide rail, and the non-contact part is not easy to deform. This helps to control the deformation area and deformation amount and avoid non-uniform deformation.

[0041] like Figure 8As shown, a pre-deformation resistance reduction unit 9 is also arranged between the two support seats 31, and the pre-deformation resistance reduction unit 9 includes an induction heating part 91 whose two ends are respectively fixed to the two support seats 31, a screw rod 3 92 rotatably connected to one of the support seats 31, an adjustment seat 2 93 movably connected to one of the support seats 31 and screwed to the outside of the screw rod 3 92, a guide rod 2 96 fixed to the other support seat 31, a guide seat 2 95 movably connected to the other support seat 31 and movably sleeved on the outside of the guide rod 2 96, and a roller 2 94 whose two ends are rotatably connected to the adjustment seat 2 93 and the guide seat 2 95 respectively.

[0042] By adopting the above technical scheme, after the roller 1 63 applies pressure to the guide rail, there will be uneven and rough areas on the surface of the guide rail. By applying pressure to the guide rail surface for the second time by the smooth roller 2 94, the surface grain structure can be further refined, the surface hardness and wear resistance can be improved, and these irregular parts can be smoothed at the same time, the surface smoothness can be significantly improved, and the surface roughness can be reduced. In addition, during the two pre-deformation pressure processes on the guide rail, the induction heating part 91 (induction heating coil, mature existing technology, the principle will not be repeated here) can heat the guide rail, which can reduce the flow resistance of the material and reduce the pressure requirement. Heating during the second pressure application helps to relieve the internal stress caused by deformation and reduce residual stress, thereby improving the service life and reliability of the guide rail. The second pressure application uses smooth rollers to further compact and deform the guide rail surface that has been pre-deformed, which can effectively refine the grain structure of the surface layer. The fine grain structure usually improves the hardness and strength of the material, allowing the material to gradually adapt to deformation, reducing the severe hardening caused by a single large deformation, and the material surface will not be subjected to excessive local stress, thereby reducing the hardening effect. After two pre-deformation rolling processes, some defects on the material surface, such as surface microcracks and roughness, can be removed. This makes the contact between the rolling tool and the workpiece surface more uniform during subsequent rolling processing, reducing the risk of surface hardening.

[0043] like Figure 4 and Figure 6 As shown, a stress averaging unit 7 is arranged outside the rolling part 54, and the stress averaging unit 7 includes a conductive slip ring 72 sleeved on the outer surface of the rolling part 54, an ultrasonic transducer part 73 fixedly connected to one side of the conductive slip ring 72, and a fixing ring 74 connected to the lower end of the ultrasonic transducer part 73 and fixedly connected to the outer surface of the rolling part 54. An ultrasonic generator 71 is fixedly connected to the outer surface of one side of the positioning seat 52, and the ultrasonic generator 71 is linearly connected to the ultrasonic transducer part 73. The conductive slip ring 72 includes a stator 721 fixedly connected to the outer surface of the rolling part 54 and a rotor 722 rotatably connected to the stator 721, and the ultrasonic transducer part 73 is fixedly connected to the lower end of the rotor 722.

[0044] By adopting the above technical solution, the ultrasonic generator 71 can generate a high-frequency electrical signal, which is transmitted to the ultrasonic transducer 73 through the conductive slip ring 72. The ultrasonic transducer 73 converts the electrical signal into a high-frequency mechanical vibration, and the ultrasonic transducer 73 includes an ultrasonic amplitude rod, which receives the mechanical vibration output by the transducer, amplifies (or adjusts) the amplitude through its specific geometric design, and the adjusted vibration is transmitted from the amplitude rod to the fixing ring 74 and the rolling part 54, so that the ultrasonic transducer and the needle roller 56 can be integrated together, so that they rotate as a whole, ensuring that the vibration energy is directly transmitted to the needle roller 56, and the ultrasonic vibration applies high-frequency vibration energy to the surface of the workpiece during the rolling process, so that the dislocation movement and recrystallization process inside the material are accelerated, the deformation resistance of the metal is reduced, and the material is easier to flow during the plastic deformation process. This reduces the force required for deformation, makes the surface deformation more uniform, thereby reducing the work hardening effect, and can also reduce friction and adhesion, reduce the formation of surface defects and microcracks, and improve surface quality.

[0045] like Figure 3 and Figure 5 As shown, the positioning seat 1 51 and the positioning seat 2 52 are provided with a limiting groove 538 inside, and a ball 537 is rotatably connected to the inner wall of the limiting groove 538, and the ball 537 is movably connected to the outer surface of the rolling part 54. The outer surface of the rolling part 54 is also connected to a bearing 536, and the inner ring of the bearing 536 is fixedly connected to the outer surface of the rolling part 54, and the outer ring of the bearing 536 is fixedly connected to the inner wall of the positioning seat 1 51 and the positioning seat 2 52, and a slot 541 is provided at the upper end of the rolling part 54. The driving assembly 53 includes a motor 2 531 fixedly connected to the outer surface of one side of the positioning seat 2 52, a synchronous wheel 1 532 fixedly connected to the output shaft of the motor 2 531, a synchronous wheel 2 534 rotatably connected to the lower end of the positioning frame 55, a synchronous belt 533 connecting the synchronous wheel 1 532 and the synchronous wheel 2 534, and an extension end 535 integrally formed at the lower end of the synchronous wheel 2 534 and inserted into the slot 541.

[0046] By adopting the above technical solution, the motor 2 531 drives the synchronous wheel 1 532 to rotate, the synchronous wheel 1 532 rotates and drives the synchronous wheel 2 534 to rotate through the synchronous belt 533, the synchronous wheel 2 534 rotates and drives the rolling part 54 to rotate through the extension end 535, the rolling part 54 rotates in the bearing 536 between the positioning seat 1 51 and the positioning seat 2 52 to achieve rotational rolling on the guide rail surface, and the positioning frame 55 is used to apply a downward force to the rolling part 54 to prevent the rolling part 54 from moving upward in the positioning seat 1 51 and the positioning seat 2 52.

[0047] like Figure 3 and Figure 5As shown, a hollow groove 542 is formed inside the rolling portion 54 , a rotary joint 8 is fixedly connected to the upper end of the positioning frame 55 , and an inner tube of the rotary joint 8 passes through the positioning frame 55 and the second synchronous wheel 534 and is inserted into the hollow groove 542 .

[0048] By adopting the above technical solution, the rotary joint 8 can be externally connected to a liquid supply pipe. By pumping coolant into the rotary joint 8, the coolant enters the hollow groove 542 and is discharged from the bottom of the rolling portion 54, and can flow directly to the grinding block 57 and the needle roller 56, thereby quickly taking away the heat generated during the processing, preventing the surface of the material from being hardened and deformed due to excessive temperature, and reducing the friction between the needle roller 56 and the grinding block 57 and the workpiece surface, thereby reducing wear and extending the service life of the tool and the workpiece.

[0049] Usage: Place the guide rail to be processed on the workbench 1, then energize the electromagnet 11 to generate magnetic force to attract the guide rail, and the X-axis moving unit 2 can drive the guide rail surface rolling processing unit 5 and the pre-deformation processing unit 6, and the pre-deformation resistance reduction unit 9 to move along the X-axis. Before rolling the guide rail surface, the pre-deformation processing unit 6 and the pre-deformation resistance reduction unit 9 are driven to move by the X-axis moving unit 2, so that the roller 63 can contact the guide rail surface. When the roller 63 moves and contacts the guide rail surface, the roller 63 rotates between the guide seat 65 and the adjustment seat 62 to apply pressure to the guide rail surface. The surface of the guide rail produces plastic deformation. After the roller 1 63 applies pressure to the guide rail, there will be uneven and rough areas on the surface of the guide rail. The smooth roller 2 94 applies pressure to the surface of the guide rail for the second time, which can further refine the surface grain structure and improve the surface hardness and wear resistance. During the two pre-deformation pressure processes on the guide rail, the induction heating unit 91 can heat the guide rail, which can reduce the flow resistance of the material and reduce the pressure requirement. Then, the X-axis moving unit 2 and the Y-axis moving unit 3 are controlled to work, and the position of the rolling unit 54 is adjusted to move the rolling unit 54 to the top of the guide rail. The Z-axis moving unit 4 works The rolling part 54 is driven to descend, so that the grinding block 57 and the needle roller 56 are in contact with the surface of the guide rail. The motor 2 531 works to drive the synchronous wheel 1 532 to rotate. The synchronous wheel 1 532 rotates through the synchronous belt 533 to drive the synchronous wheel 2 534 to rotate. The synchronous wheel 2 534 rotates through the extension end 535 to drive the rolling part 54 to rotate. The rolling part 54 rotates in the bearing 536 between the positioning seat 1 51 and the positioning seat 2 52 to achieve rotational rolling of the guide rail surface. During the rolling process, the ultrasonic generator 71 can generate a high-frequency electrical signal, which is transmitted to the ultrasonic transducer 73 through the conductive slip ring 72. The ultrasonic transducer 73 3 converts the electrical signal into high-frequency mechanical vibration, and the ultrasonic transducer part 73 includes an ultrasonic amplitude rod, which receives the mechanical vibration output by the transducer, amplifies (or adjusts) the amplitude through its specific geometric design, and the adjusted vibration is transmitted from the amplitude rod to the fixing ring 74 and the rolling part 54, so that the ultrasonic transducer and the needle roller 56 can be integrated together, so that they rotate as a whole, ensuring that the vibration energy is directly transmitted to the needle roller 56. The ultrasonic vibration applies high-frequency vibration energy to the surface of the workpiece during the rolling process, so that the dislocation movement and recrystallization process inside the material are accelerated, and the deformation resistance of the metal is reduced.

[0050] The above is only a preferred specific implementation of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and its improved conception within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A guide rail processing device, comprising a workbench (1), an X-axis moving unit (2) arranged on both sides of the workbench (1), a Y-axis moving unit (3) fixedly connected to the moving end of the X-axis moving unit (2), a Z-axis moving unit (4) fixedly connected to the moving end of the Y-axis moving unit (3), and a guide rail surface rolling processing unit (5) fixedly connected to the moving end of the Z-axis moving unit (4), characterized in that: The guide rail surface rolling processing unit (5) comprises a positioning seat 1 (51) fixedly connected to the moving end of the Z-axis moving unit (4), a positioning seat 2 (52) screwed to one side of the positioning seat 1 (51) by bolts, a rolling part (54) rotatably connected between the positioning seat 1 (51) and the positioning seat 2 (52), a driving assembly (53) fixedly connected to the outer surface of one side of the positioning seat 2 (52) for driving the rolling part (54) to rotate, a needle roller (56) rotatably connected to the lower end of the rolling part (54), a grinding block (57) connected to the lower end of the rolling part (54), and a positioning frame (55) screwed to the upper ends of the positioning seat 1 (51) and the positioning seat 2 (52) and used to limit the rolling part (54); The Y-axis moving unit (3) comprises two support seats (31) symmetrically fixed on the moving end of the X-axis moving unit (2), a connecting plate (32) whose two ends are respectively connected to the two support seats (31), a motor (33) fixed to one side of one of the support seats (31), a screw rod (34) rotatably connected between the two support seats (31), a screw sleeve screwed to the outside of the screw rod (34), and a slide rail (35) fixed to one side of the connecting plate (32); the output shaft of the motor (33) passes through one of the support seats (31) and is fixed to one end of the screw rod (34); one side of the Z-axis moving unit (4) is fixed to one side of the screw sleeve, and one side of the Z-axis moving unit (4) is slidably connected to the slide rail (35); A pre-deformation processing unit (6) is provided between the two support seats (31), and the pre-deformation processing unit (6) comprises a screw rod (61) rotatably connected to the interior of one of the support seats (31), an adjustment seat (62) movably connected to the interior of one of the support seats (31) and screwed to the exterior of the screw rod (61), a guide rod (66) fixed to the interior of the other support seat (31), a guide seat (65) movably connected to the interior of the other support seat (31) and movably sleeved to the exterior of the guide rod (66), and a roller (63) rotatably connected to the adjustment seat (62) and the guide seat (65) at both ends; A pre-deformation resistance reduction unit (9) is also provided between the two support seats (31), and the pre-deformation resistance reduction unit (9) comprises an induction heating portion (91) whose two ends are respectively fixed to the two support seats (31), a screw rod (92) rotatably connected to the interior of one of the support seats (31), an adjustment seat (93) movably connected to the interior of one of the support seats (31) and screwed to the exterior of the screw rod (92), a guide rod (96) fixed to the interior of the other support seat (31), a guide seat (95) movably connected to the interior of the other support seat (31) and movably sleeved to the exterior of the guide rod (96), and a roller (94) rotatably connected to the adjustment seat (93) and the guide seat (95) at both ends; A stress averaging unit (7) is arranged outside the rolling part (54), and the stress averaging unit (7) comprises a conductive slip ring (72) sleeved on the outer surface of the rolling part (54), an ultrasonic transducer part (73) fixedly connected to one side of the conductive slip ring (72), and a fixing ring (74) connected to the lower end of the ultrasonic transducer part (73) and fixedly connected to the outer surface of the rolling part (54); an ultrasonic generator (71) is fixedly connected to the outer surface of one side of the positioning seat (52), and the ultrasonic generator (71) is linearly connected to the ultrasonic transducer part (73); the conductive slip ring (72) comprises a stator (721) fixedly connected to the outer surface of the rolling part (54) and a rotor (722) rotatably connected to the stator (721); and the ultrasonic transducer part (73) is fixedly connected to the lower end of the rotor (722); 2. A guide rail processing device according to claim 1, characterized in that: The rolling portion (54) is provided with an active cavity (543) inside, and a guide column (544) is fixedly connected to the inner wall of the active cavity (543); a spring (545) is movably sleeved on the outer surface of the guide column (544); the grinding block (57) is movably sleeved on the outside of the guide column (544), and two ends of the spring (545) are respectively connected to the grinding block (57) and the inner wall of the active cavity (543); the lower end of the rolling portion (54) is also clamped with a bottom cover (546), and the lower end of the grinding block (57) and the roller needle (56) both penetrate the bottom cover (546) and extend outwards.

3. A guide rail processing device according to claim 1, characterized in that: The outer surface of the roller 1 (63) is integrally formed with a plurality of evenly distributed flanges (64).

4. A guide rail processing device according to claim 1, characterized in that: The first positioning seat (51) and the second positioning seat (52) are both provided with a limiting groove (538), and a ball (537) is rotatably connected to the inner wall of the limiting groove (538), and the ball (537) is movably connected to the outer surface of the rolling part (54). The outer surface of the rolling part (54) is also connected to a bearing (536), and the inner ring of the bearing (536) is fixedly connected to the outer surface of the rolling part (54). The outer ring of the bearing (536) is fixedly connected to the inner wall of the first positioning seat (51) and the second positioning seat (52), and a slot (541) is provided at the upper end of the rolling part (54).

5. A guide rail processing device according to claim 4, characterized in that: The driving assembly (53) comprises a second motor (531) fixedly connected to the outer surface of one side of the second positioning seat (52), a first synchronous wheel (532) fixedly connected to the output shaft of the second motor (531), a second synchronous wheel (534) rotatably connected to the lower end of the positioning frame (55), a synchronous belt (533) connecting the first synchronous wheel (532) and the second synchronous wheel (534), and an extension end (535) integrally formed at the lower end of the second synchronous wheel (534) and inserted into the slot (541).

6. A guide rail processing device according to claim 5, characterized in that: A hollow groove (542) is provided inside the rolling portion (54), a rotary joint (8) is fixedly connected to the upper end of the positioning frame (55), and an inner tube of the rotary joint (8) passes through the positioning frame (55) and the second synchronous wheel (534) and is inserted into the hollow groove (542), an electromagnet (11) for sucking a workpiece is fixedly connected inside the workbench (1), and a drainage groove (12) is also provided inside the workbench (1).

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