Surface treatment device based on 40Cr steel forgings

Abstract

The invention relates to the technical field of steel forging machining, and discloses a surface treatment device based on 40Cr steel forgings.The surface treatment device comprises a bottom plate, a rotating assembly moving in the X direction and the Y direction is arranged at the upper end of the bottom plate, the rotating assembly comprises a dial mounted at the upper end of a mounting disc, and a rotating shaft is rotationally arranged at the upper end of the dial; a worm gear is fixedly arranged on the outer surface of the rotating shaft, a first driving motor is fixedly arranged at the upper end of the dial, a worm meshed with the worm gear is connected to one end of an output shaft of the first driving motor, an air cylinder is fixedly arranged at the upper end of the rotating shaft, and a grinding assembly is arranged at the end of a piston rod of the air cylinder. The grinding assembly comprises a grinding wheel rotationally arranged at one end of the mounting box, and a rotating disc is rotationally arranged at one end of the outer side wall of the mounting box. The device is used for polishing the outer surfaces of straight pipes and bent pipes of the steel forgings, and the polishing precision is improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of steel forging processing, in particular to a surface treatment device based on 40Cr steel forgings. BACKGROUND

[0002] 40Cr steel is an alloy structural steel widely used in the field of mechanical manufacturing, and has excellent hardenability, strength and toughness, and occupies an important position in many industries such as automobile parts, engineering machinery and machine tool equipment. The forgings made of 40Cr steel can improve the internal organizational structure of the metal and the mechanical properties by forging process, and become the core components of key functions. However, during the forging process of 40Cr steel forgings, the surface often forms defects such as oxide skin, flash, burr and unevenness. These surface problems not only affect the appearance quality of the forgings, but also have adverse effects on the subsequent processing procedures (such as heat treatment, finishing, assembly, etc.).

[0003] The existing steel forging polishing device can only polish straight pipes. When facing curved pipe steel forgings, due to the existence of curvature change, bending angle and possible special-shaped cross section of the curved pipe, the fixed trajectory polishing device is difficult to fit every surface of the curved pipe, especially at the bending inner side of the curved pipe, the curvature mutation position and the connection transition with the straight pipe section, which is prone to form polishing dead angles. These dead angles not only cause the oxide skin, burr or defects on the surface of the curved pipe to be unable to be completely removed, affecting the surface quality of the steel forgings and the subsequent machining precision, but also may hide stress concentration points due to insufficient polishing, causing potential hazards to the overall mechanical properties and service life of the curved pipe.

[0004] Therefore, the applicant proposes a surface treatment device based on 40Cr steel forgings. SUMMARY

[0005] The purpose of the present application is to provide a surface treatment device based on 40Cr steel forgings, which solves the following technical problems: the existing steel forging polishing device can only polish straight pipes, and when facing curved pipe steel forgings, due to the existence of curvature change, bending angle and possible special-shaped cross section of the curved pipe, the fixed trajectory polishing device is difficult to fit every surface of the curved pipe, especially at the bending inner side of the curved pipe, the curvature mutation position and the connection transition with the straight pipe section, which is prone to form polishing dead angles. These dead angles not only cause the oxide skin, burr or defects on the surface of the curved pipe to be unable to be completely removed, affecting the surface quality of the steel forgings and the subsequent machining precision, but also may hide stress concentration points due to insufficient polishing, causing potential hazards to the overall mechanical properties and service life of the curved pipe.

[0006] The purpose of the present application can be achieved by the following technical solutions: A surface treatment device for 40Cr steel forgings includes a base plate. A rotating assembly that moves along the X and Y directions is mounted on the upper end of the base plate. The rotating assembly includes a mounting plate mounted on the upper end of the base plate. A scale is fixedly mounted on the upper end of the mounting plate. A rotating shaft is rotatably mounted from the upper end of the scale to the top of the mounting plate. A worm gear is fixedly mounted on the outer surface of the rotating shaft. A first drive motor is fixedly mounted on the upper end of the scale. One end of the output shaft of the first drive motor is connected to a worm that meshes with the worm gear. A cylinder is fixedly mounted on the upper end of the rotating shaft. A grinding assembly is mounted on the end of the piston rod of the cylinder. The grinding assembly includes a connecting rod fixedly mounted at the end of the cylinder piston rod, a mounting box fixedly mounted at one end of the connecting rod, a grinding wheel rotatably mounted at one end of the mounting box, a support frame fixedly mounted at one end of the outer wall of the mounting box, and a turntable rotatably mounted at the lower end of the support frame.

[0007] As a further aspect of the present invention: a first transverse driving component is provided at the upper end of the base plate; The system includes a first servo motor fixedly mounted on the short side of the base plate. The output shaft of the first servo motor passes through the side wall of the base plate and is fitted with a first lead screw. A slider is threaded onto the outer surface of the first lead screw, and a clamping assembly is mounted on the upper end of the slider.

[0008] As a further embodiment of the present invention: the clamping assembly includes a fixed frame disposed on the upper end of the slider, a first through hole being opened on the upper side of the fixed frame, a second servo motor being fixedly disposed on the upper end of the fixed frame, a first drive gear being fixedly disposed on the output shaft of the second servo motor, an external gear ring being meshed on the lower end of the first drive gear, the external gear ring being rotatably disposed inside the first through hole by rollers, a second through hole being opened in the middle of the external gear ring, an internal gear ring being rotatably mounted inside the second through hole by rollers, a plurality of planetary gears being meshed in an annular array on the outer ring of the internal gear ring, a rotating shaft being installed at the central axis of the plurality of planetary gears, a clamping unit being disposed through the side wall of the external gear ring on the rotating shaft, a second drive gear being meshed on the lower end of the internal gear ring, and a third servo motor being connected to the central axis of the second drive gear.

[0009] As a further aspect of the present invention: the clamping unit includes a connecting block fixedly disposed at one end of the rotating shaft, a first bolt symmetrically fixedly disposed at one end of the connecting block, a connecting arm symmetrically sleeved on the surface of the first bolt, a second bolt installed at one end of the connecting arm, and a buffer pad sleeved on the surface of the second bolt.

[0010] As a further aspect of the present invention: the grinding assembly further includes a second drive motor fixedly disposed at one end of the mounting box, the end of the piston rod of the second drive motor passing through the side wall of the mounting box and a first rotating rod is mounted thereon, the interior of the mounting box is symmetrically provided with slots, the upper end of the mounting box is threadedly connected to an adjusting screw, the lower end of the adjusting screw is rotatably provided with a sliding block, the interior of the sliding block is fixedly sleeved with a connecting shaft, one end of the connecting shaft is connected to a grinding wheel, the inner side walls of the mounting box are symmetrically rotatably provided with a second rotating rod, and a conveyor belt is provided between the first rotating rod, the second rotating rod and the connecting shaft.

[0011] As a further embodiment of the present invention: symmetrical sliding grooves are provided at the bottom of the installation box, one of the second rotating rods is slidably disposed inside the sliding groove, and U-shaped plates are installed at both ends of one of the second rotating rods. A support rod is fixedly provided at one end of the U-shaped plate, and a support sleeve is sleeved on the outer surface of the support rod. A spring is sleeved on the outer surface of the support rod and the support sleeve.

[0012] As a further aspect of the present invention: the upper end of the dial is engraved with scale lines on the outside of the rotating shaft, and a pointer is provided on the surface of the rotating shaft.

[0013] As a further aspect of the present invention: the outer edge of the turntable and the outer edge of the grinding wheel are located on the same vertical line.

[0014] As a further aspect of the present invention: a feeding assembly is provided at the upper end of the base plate, the feeding assembly includes two second lead screws rotatably disposed at the upper end of the base plate, and electric push rods are threadedly connected to the surfaces of the two second lead screws. A third drive motor is installed on the side wall of the base plate, and sprockets are fixedly sleeved on one end of the output shaft of the third drive motor and on the two second lead screws. The multiple sprockets are driven by a chain.

[0015] As a further aspect of the present invention: the feeding assembly further includes a receiving plate fixedly disposed on the upper end of the two electric push rods, and the upper end of the receiving plate is symmetrically fixedly provided with shaft supports.

[0016] The beneficial effects of this invention are: (1) The present invention utilizes the longitudinal drive component and the second transverse drive component to realize the reciprocating movement of the grinding component along the X and Y directions. The first drive motor drives the worm gear to rotate, and the rotation angle of the rotating shaft is controlled by the pointer indicating the scale line, so that the rotation angle is matched with the bending angle of the steel forging. During grinding, the turntable slowly rolls on the surface of the steel forging, so that the grinding wheel is in close contact with the curved surface, which is beneficial to the precise grinding of the bent section of the steel forging. When the rotating component does not rotate, the rapid grinding of the straight steel forging can be completed. (2) The present invention utilizes a second servo motor to drive the external gear ring to rotate, and a third servo motor to drive the external gear to drive multiple planetary gears to rotate. The multiple planetary gears drive the clamping unit to rotate, thereby achieving the clamping of steel forgings of different sizes. After clamping, the first transverse drive component drives the reciprocating movement of the clamped steel forgings to complete the grinding of the entire cross section. After the cylinder is roughly adjusted to the height, the height of the grinding wheel can be precisely adjusted by adjusting the screw, so as to quickly and accurately grind the surface of the steel forgings and improve work efficiency.

[0017] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The invention will now be further described with reference to the accompanying drawings.

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the rotating component of the present invention; Figure 3 This is a schematic diagram of the structure of the polishing component of the present invention; Figure 4 This is a structural schematic diagram of the rotating shaft and other components of the present invention; Figure 5 This is a side view of the clamping assembly of the present invention. Figure 6 This is a schematic diagram of another side view of the clamping assembly of the present invention; Figure 7 This is a schematic diagram of the clamping unit of the present invention. Figure 8 This is a top view of the grinding component of the present invention. Figure 9 This is a side view of the grinding assembly of the present invention. Figure 10 This is a schematic diagram of the feeding assembly of the present invention; Figure 11 This is a schematic diagram of the structure of the third drive motor and the second lead screw of the present invention.

[0020] In the diagram: 1. Base plate; 2. First transverse drive assembly; 21. First servo motor; 22. First lead screw; 23. Slider; 3. Clamping assembly; 31. Moving plate; 32. Fixing frame; 3201. First through hole; 33. Second servo motor; 34. First drive gear; 35. External gear ring; 3501. Second through hole; 36. Internal gear ring; 37. Planetary gear; 38. Rotating shaft; 39. Clamping unit; 391. Connecting block; 392. First bolt; 393. Connecting arm; 394. Second bolt; 395. Nut; 396. Buffer pad; 310. Second drive gear; 311. Third servo motor; 4. Longitudinal drive assembly; 5. Second transverse drive assembly; 6. Rotating assembly; 61. Mounting plate; 62. Dial; 6 3. Scale line; 64. Rotating shaft; 65. Worm gear; 66. First drive motor; 67. Worm; 68. Cylinder; 69. Pointer; 7. Grinding assembly; 71. Connecting rod; 72. Mounting box; 721. Groove; 73. Second drive motor; 74. First rotating rod; 75. Adjusting screw; 76. Sliding block; 77. Connecting shaft; 78. Grinding wheel; 79. Second rotating rod; 710. Conveyor belt; 711. U-shaped plate; 712. Support rod; 713. Support sleeve; 714. Support plate; 715. Spring; 716. Support frame; 717. Turntable; 8. Feeding assembly; 81. Second lead screw; 82. Electric push rod; 83. Third drive motor; 84. Sprocket; 85. Chain; 86. Receiving plate; 87. Shaft support. Detailed Implementation

[0021] Embodiments of the present invention are described in detail below. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar symbols denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0022] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0023] In the field of steel forging processing technology, a surface treatment device based on 40Cr steel forgings can uniformly grind the surface of traditional cylindrical or square steel forgings during internal and external grinding. However, for irregularly shaped cross-sections such as arcs, the grinding tool struggles to reach certain concave areas or abrupt corners during grinding, creating obvious grinding dead zones. These insufficiently ground areas not only retain impurities such as oxide scale and burrs, but their surface roughness also far exceeds the design limit, directly leading to a decrease in key performance indicators such as assembly accuracy and corrosion resistance of the forgings. This fails to meet the stringent precision requirements for irregularly shaped cross-sections in the design drawings, posing potential risks to subsequent processing and product quality. Therefore, this invention develops a surface treatment device based on 40Cr steel forgings, which achieves rapid grinding of irregularly shaped cross-sections through a series of innovative designs. The specific implementation method is as follows: Example 1: As Figure 1 As shown, a surface treatment device based on 40Cr steel forgings includes a base plate 1. A first transverse drive assembly 2 is provided at the upper end of the base plate 1. A clamping assembly 3 is slidably installed at the upper end of the base plate 1 through the first transverse drive assembly 2. The clamping assembly 3 is driven to reciprocate at the upper end of the base plate 1 by the first transverse drive assembly 2. The first transverse drive assembly 2 includes a first servo motor 21 fixedly installed on one side of the base plate 1 in the short side direction. The output shaft of the first servo motor 21 passes through the side wall of the base plate 1. A first lead screw 22 is installed in the sliding groove at the upper end of the base plate 1. The first lead screw 22 is set in the sliding groove at the upper end of the base plate 1, and the end away from the first servo motor 21 is rotatably connected to the side wall of the sliding groove at the upper end of the base plate 1. A slider 23 is threadedly connected to the outer surface of the first lead screw 22. The upper end of the slider 23 is fixedly connected to the lower end of the clamping assembly 3. The first servo motor 21 drives the first lead screw 22 to rotate, thereby driving the slider 23, which is threadedly connected to the first lead screw 22, to reciprocate. The slider 23 drives the clamping assembly 3 to reciprocate on the upper end of the base plate 1 to complete the grinding of the surface of the 40Cr steel forging.

[0024] Specifically, such as Figures 2-4As shown, the clamping assembly 3 includes a movable plate 31 fixedly mounted on the upper end of the slider 23. A fixing frame 32 is fixedly mounted on the upper end of the movable plate 31. A first through hole 3201 is opened on the upper side of the fixing frame 32. A second servo motor 33 is fixedly mounted on the upper end of the fixing frame 32. A first drive gear 34 is fixedly mounted on the output shaft of the second servo motor 33. An external gear ring 35 is meshed on the lower end of the first drive gear 34. The external gear ring 35 is rotatably mounted in the first through hole 3201 on the upper end of the fixing frame 32 by a roller. A second through hole 3501 is opened in the middle of the external gear ring 35. An internal gear is rotatably mounted inside the second through hole 3501 by a roller. The inner gear ring 36 has multiple planetary gears 37 meshing in an annular array on its outer ring. A rotating shaft 38 is installed at the central axis of the multiple planetary gears 37. The rotating shaft 38 passes through the side wall of the outer gear ring 35 and a clamping unit 39 is provided at its other end. The rotating shaft 38 is rotatably connected to the outer gear ring 35. The multiple clamping units 39 distributed in an annular array are used to stably clamp the 40Cr steel forging. A second driving gear 310 is meshed at the lower end of the outer side of the inner gear ring 36. The central axis of the second driving gear 310 is connected to the output shaft of the third servo motor 311. One end of the third servo motor 311 is fixedly connected to the outer gear ring 35. The third servo motor 311 drives the second drive gear 310 to rotate, which in turn drives the internal gear ring 36 to rotate. The internal gear ring 36 then drives multiple planetary gears 37 to rotate, which in turn drive multiple clamping units 39 to rotate via a rotating shaft 38, thus achieving stable clamping of the 40Cr steel forging. The multiple clamping units 39 can rotate relative to each other to accommodate 40Cr steel forgings of different sizes. After the 40Cr steel forging is stably clamped, the second servo motor 33 drives the first drive gear 34 to rotate, which in turn drives the external gear ring 35 to rotate, causing the clamped 40Cr steel forging to rotate at a uniform speed. This allows for rapid surface grinding and avoids the frequent flipping of the forging during grinding, which would reduce processing efficiency.

[0025] Specifically, such as Figure 4 As shown, the clamping unit 39 includes a connecting block 391 fixedly disposed at one end of the rotating shaft 38. A first bolt 392 is symmetrically fixedly disposed at one end of the connecting block 391. Connecting arms 393 are symmetrically sleeved on the surfaces of the two first bolts 392. A second bolt 394 is installed at the end of the two connecting arms 393 away from the first bolts 392. Nuts 395 are threadedly connected to the two ends of the second bolt 394 on the outside of the two connecting arms 393. A buffer pad 396 is sleeved on the surface of the second bolt 394. The three buffer pads 396 are arranged in a circular array with the center of the moving plate 31 as the center. The rotating shaft 38 drives the connecting block 391 to rotate. The connecting block 391 drives the buffer pad 396 to rotate through the first bolt 392 and the connecting arm 393. Multiple buffer pads 396 rotate relative to each other, forming concentric circles of different diameters to clamp and fix 40Cr steel forgings of different sizes. The buffer pad 396 is made of rubber, which can prevent wear on the surface of the 40Cr steel forgings during clamping.

[0026] In summary, a surface treatment device for 40Cr steel forgings, in use, uses a third servo motor 311 to drive a second drive gear 310 to rotate. The second drive gear 310 drives an internal gear ring 36 to rotate. The internal gear ring 36 drives multiple rotating shafts 38 to rotate via multiple planetary gears 37. The multiple rotating shafts 38 drive a clamping unit 39 to rotate. The clamping unit 39 uses a connecting arm 393 and a buffer pad 396 to achieve stable clamping of the steel forging. After stable clamping, the second servo motor 33 drives a first drive gear 34 to rotate. The first drive gear 34 drives an external gear ring 35 to rotate, thereby achieving rotation of the clamped steel forging.

[0027] Example 2: Based on Example 1, as follows Figure 1 As shown, a longitudinal drive assembly 4 is provided at the upper end of the base plate 1, and a second transverse drive assembly 5 is provided at the upper end of the longitudinal drive assembly 4. The longitudinal drive assembly 4 and the second transverse drive assembly 5 have the same structure as the first transverse drive assembly 2. They are all reciprocating drive assemblies composed of servo motors, lead screws and sliders to realize the reciprocating movement of the components. The longitudinal drive assembly 4 realizes the reciprocating movement of the second transverse drive assembly 5 in the horizontal longitudinal direction through the reciprocating drive assembly of servo motors, lead screws and sliders. A rotating assembly 6 is provided at the upper end of the second transverse drive assembly 5. The rotating assembly 6 is used to adjust the angle of the grinding assembly 7. The reciprocating movement of the rotating assembly 6 in the X and Y directions is realized through the longitudinal drive assembly 4 and the second transverse drive assembly 5. When facing a 40Cr steel forging with a curved cross section, the rotating assembly 6 can adaptively rotate to make the grinding assembly 7 fit better with the curved surface and improve the grinding efficiency.

[0028] Specifically, such as Figure 5 , Figure 6As shown, the rotating assembly 6 includes a mounting plate 61 mounted on the upper end of the second transverse drive assembly 5. A scale 62 is fixedly mounted on the upper end of the mounting plate 61. Scale lines 63 are engraved on the outer side of the rotating shaft 64 on the upper end of the scale 62. The rotating shaft 64 is rotatably mounted on the upper end of the scale 62, extending to the top of the mounting plate 61. A worm gear 65 is fixedly mounted on the outer surface of the rotating shaft 64. A first drive motor 66 is fixedly mounted on the upper end of the scale 62. On one side of the worm gear 65, one end of the output shaft of the first drive motor 66 is connected to a worm 67, which meshes with the worm gear 65. A cylinder 68 is fixedly installed at the upper end of the rotating shaft 64, and the end of the piston rod of the cylinder 68 is connected to the grinding assembly 7. A pointer 69 is provided on the surface of the rotating shaft 64 at the lower end of the worm gear 65. The pointer 69 is used to accurately indicate the rotation angle of the rotating shaft 64 so as to accurately match the curvature of the curved surface section with the rotation angle and complete the precise grinding of the curved surface.

[0029] The first drive motor 66 drives the worm gear 67 to rotate, the worm gear 67 drives the worm wheel 65 meshing with it to rotate, the worm wheel 65 drives the rotating shaft 64 to rotate, and the rotating shaft 64 drives the grinding assembly 7 to rotate through the cylinder 68, so as to accurately grind the curved surface of the 40Cr steel forging, improve grinding efficiency and accuracy. When the rotating shaft 64 rotates, the rotating shaft 64 drives the pointer 69 to accurately control the rotation angle through the indication of the scale line 63. By calculating the curvature of the 40Cr steel forging surface, the rotation angle of the rotating shaft 64 is matched with the curvature of the surface.

[0030] Specifically, such as Figure 7 , Figure 8As shown, the grinding assembly 7 includes a connecting rod 71 fixedly mounted at the end of the piston rod of the cylinder 68. A mounting box 72 is fixedly mounted at the end of the connecting rod 71 away from the cylinder 68. A second drive motor 73 is mounted at one end of the outer wall of the mounting box 72. The end of the piston rod of the second drive motor 73 passes through the side wall of the mounting box 72. A first rotating rod 74 is installed inside the mounting box 72. The end of the first rotating rod 74 away from the second drive motor 73 is rotatably connected to the inner side wall of the mounting box 72. The mounting box 72 has symmetrically opened slots 721 inside. An adjusting screw 75 is threaded through the upper end of the mounting box 72 to the slot 721. A sliding block 76 is rotatably mounted inside the adjusting screw 75 within the slot 721. The sliding block 76 is slidably engaged inside the slot 721. A connecting shaft 77 is fixedly sleeved inside the sliding block 76. One end of the connecting shaft 77... A grinding wheel 78 is fixedly installed at one end of the connecting shaft 77. The other end of the connecting shaft 77 passes through one end of the sliding block 76 and is connected to one end of the inner wall of the mounting box 72. The mounting block is slidably engaged in the groove 721 at the other end of the mounting box 72. A second rotating rod 79 is symmetrically arranged between the inner walls of the mounting box 72. The second rotating rod 79 is located at the bottom of the mounting box 72. A conveyor belt 710 is arranged between the first rotating rod 74, the second rotating rod 79 and the connecting shaft 77. The conveyor belt 710 is arranged in a triangular winding arrangement. The winding arrangement of the conveyor belt 710 provides sufficient wrap angle between the conveyor belt 710 and the first rotating rod 74, the second rotating rod 79 and the connecting shaft 77. The larger the wrap angle, the larger the contact area between the conveyor belt 710 and the first rotating rod 74, the second rotating rod 79 and the connecting shaft 77, the greater the total friction force and the more reliable the transmission. Cylinder 68 is used to adjust the height of the grinding assembly 7 to meet the grinding requirements of 40Cr steel forgings of different diameters. The second drive motor 73 drives the first rotating rod 74 to rotate. The first rotating rod 74 drives the second rotating rod 79 and the connecting shaft 77 to rotate via the conveyor belt 710. The connecting shaft 77 drives the grinding wheel 78 to rotate, uniformly grinding the surface of the 40Cr steel forging. The height of the grinding wheel 78 can be finely adjusted by adjusting the screw 75 to drive the sliding block 76 to slide inside the slot 721. After coarse adjustment by cylinder 68, the height of the grinding wheel 78 can be precisely adjusted by adjusting the screw 75 to meet the grinding requirements of 40Cr steel forgings of different sizes.

[0031] Specifically, such as Figure 7 , Figure 8As shown, the bottom of the mounting box 72 is symmetrically provided with sliding grooves 722. One of the second rotating rods 79 is slidably disposed inside the sliding groove 722. U-shaped plates 711 are installed at both ends of one of the second rotating rods 79. A support rod 712 is fixedly installed at one end of the U-shaped plate 711. A support sleeve 713 is sleeved on the outer surface of the support rod 712. A support plate 714 is fixedly installed at one end of the support sleeve 713. Both ends of the support plate 714 are fixedly connected to the inner side wall of the mounting box 72. A spring 715 is sleeved on the outer surface of the support rod 712 and the support sleeve 713. The spring 715 is in a tension state. One end of the spring 715 is fixedly connected to the support plate 714, and the other end of the spring 715 is fixedly connected to the U-shaped plate 711. When the adjusting screw 75 moves the connecting shaft 77 downward, the conveyor belt 710 is in a loose state. The U-shaped plate 711 slides inside the sliding groove 722 through the spring 715, and the support rod 712 slides inside the support sleeve 713. The pulling of the spring 715 ensures that the conveyor belt 710 is always taut during the adjustment process, thereby ensuring that the connecting shaft 77 rotates evenly during the grinding process, so as to improve the uniformity of the rotation of the grinding wheel 78.

[0032] Specifically, such as Figure 9 As shown, a support frame 716 is fixedly installed at one end of the outer wall of the mounting box 72, and a turntable 717 is rotatably installed at the lower end of the support frame 716. A rubber pad is installed on the outer side of the turntable 717. The turntable 717 is designed so that during grinding of curved sections, its outer edge contacts the steel forging and rolls along the curved surface of the forging, thereby guiding the grinding wheel 78 to perform precise grinding along the curved surface of the forging and improving grinding quality. The rotating shaft 64 drives the pointer 69 to precisely control the rotation angle via the scale line 63. The cylinder 68 is used for coarse adjustment of the height of the grinding assembly 7. In summary, after the steel forging is stably supported, the reciprocating movement of the rotating assembly 6 in the X and Y directions is achieved through the longitudinal drive assembly 4 and the second transverse drive assembly 5, moving the rotating assembly 6 and the grinding assembly 7 to a suitable position. The first drive motor 66 drives the worm gear 67 to rotate, and the angle of the grinding assembly 7 is adjusted through the worm wheel 65 and the rotating shaft 64. The height of the grinding wheel 78 can be precisely adjusted by adjusting the screw 75, so that the height meets the grinding requirements of 40Cr steel forgings of different sizes. During the grinding of curved steel forgings, the turntable 717 ensures that when grinding curved sections, the outer edge of the turntable 717 contacts the steel forging and rolls along the curved surface of the steel forging, thereby guiding the grinding wheel 78 to perform precise grinding along the curved surface of the steel forging, improving the grinding quality.

[0033] Example 3: Based on Examples 1 and 2, as follows... Figure 10 , Figure 11As shown, a feeding assembly 8 is provided at the upper end of the base plate 1. The feeding assembly 8 includes two second lead screws 81 rotatably mounted at the upper end of the base plate 1. Electric push rods 82 are threadedly connected to the surfaces of the two second lead screws 81. The electric push rods 82 are slidably connected to the base plate 1. A third drive motor 83 is installed on the side wall of the base plate 1. A sprocket 84 is fixedly sleeved on one end of the output shaft of the third drive motor 83 and on the two second lead screws 81. The sprockets 84 are driven by a chain 85. The same receiving plate 86 is fixedly provided at the upper end of the two electric push rods 82. Shaft supports 87 are symmetrically fixedly provided at the upper end of the receiving plate 86. The shaft supports 87 have a V-shaped structure. Two electric push rods 82 are set on one side of the lower end of the receiving plate 86. The farthest section of the shaft support 87 at the upper end of the receiving plate 86 slides to the central axis of the moving plate 31. The second lead screw 81 is driven to rotate by the third drive motor 83. The second lead screw 81 drives the two electric push rods 82 to move back and forth on the upper end of the base plate 1, placing the 40Cr steel forging on the upper end of the two shaft supports 87. The 40Cr steel forging is moved to the central axis of the fixed frame 32 by the feeding assembly 8. The shaft support 87 is lifted to a suitable height by the electric push rods 82. The moving plate 31 is moved to one end of the 40Cr steel forging by the first transverse drive assembly 2. The 40Cr steel forging is then clamped by the clamping assembly 3. After clamping, the moving plate 31 moves to one end, and the grinding operation can be performed. After grinding, the above operation is repeated to complete the unloading.

[0034] In summary, during the loading and unloading process of the steel forging, the second lead screw 81 is rotated by the third drive motor 83, and the second lead screw 81 drives the two electric push rods 82 to reciprocate at the upper end of the base plate 1, placing the 40Cr steel forging on the upper end of the two shaft supports 87. The 40Cr steel forging is moved to the central axis of the fixed frame 32 by the feeding assembly 8, and then the clamping assembly 3 is driven to reciprocate by the first transverse drive assembly 2 to complete the clamping of the steel forging.

[0035] In summary, the working principle of this invention is as follows: the 40Cr steel forging is conveyed to the central axis of the clamping assembly 3 through the feeding assembly 8 to achieve accurate clamping. After the clamping is stable, the longitudinal drive assembly 4 and the second transverse drive assembly 5 drive the rotating assembly 6 to move back and forth in the X and Y directions. The rotating assembly 6 enables the grinding assembly 7 to be adapted to the precise grinding of steel forgings with different curved surfaces, thereby improving the adaptability of the equipment and improving the grinding quality.

[0036] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A surface treatment device based on 40Cr steel forgings, characterized in that, The system includes a base plate (1), and a rotating assembly (6) that moves along the X and Y directions is provided at the upper end of the base plate (1). The rotating assembly (6) includes a mounting plate (61) installed at the upper end of the base plate (1). A scale (62) is fixedly provided at the upper end of the mounting plate (61). A rotating shaft (64) is rotatably provided at the upper end of the scale (62) extending to the top of the mounting plate (61). A worm gear (65) is fixedly provided on the outer surface of the rotating shaft (64). A first drive motor (66) is fixedly provided at the upper end of the scale (62). One end of the output shaft of the first drive motor (66) is connected to a worm (67) that meshes with the worm gear (65). A cylinder (68) is fixedly provided at the upper end of the rotating shaft (64). A grinding assembly (7) is provided at the end of the piston rod of the cylinder (68). The grinding assembly (7) includes a connecting rod (71) fixedly installed at the end of the piston rod of the cylinder (68). One end of the connecting rod (71) is fixedly provided with a mounting box (72). One end of the mounting box (72) is rotatably provided with a grinding wheel (78). One end of the outer wall of the mounting box (72) is fixedly provided with a support frame (716). The lower end of the support frame (716) is rotatably provided with a turntable (717).

2. The surface treatment device based on 40Cr steel forgings according to claim 1, characterized in that, The upper end of the base plate (1) is provided with a first transverse drive assembly (2); The first servo motor (21) is fixedly installed on the short side of the base plate (1). The output shaft of the first servo motor (21) passes through the side wall of the base plate (1) and a first lead screw (22) is installed. A slider (23) is threadedly connected to the outer surface of the first lead screw (22). A clamping assembly (3) is installed at the upper end of the slider (23).

3. The surface treatment device based on 40Cr steel forgings according to claim 2, characterized in that, The clamping assembly (3) includes a fixing frame (32) disposed on the upper end of the slider (23). A first through hole (3201) is provided on the upper side of the fixing frame (32). A second servo motor (33) is fixedly disposed on the upper end of the fixing frame (32). A first drive gear (34) is fixedly disposed on the output shaft of the second servo motor (33). An external gear ring (35) is meshed on the lower end of the first drive gear (34). The external gear ring (35) is rotatably disposed inside the first through hole (3201) by a roller. A second through hole is provided in the middle of the external gear ring (35). Two through holes (3501), an internal gear ring (36) is installed inside the second through hole (3501) by a roller, a plurality of planetary gears (37) are meshed on the outer ring of the internal gear ring (36), a rotating shaft (38) is installed at the central axis of the plurality of planetary gears (37), the rotating shaft (38) passes through the side wall of the external gear ring (35) and is provided with a clamping unit (39), a second drive gear (310) is meshed at the lower end of the internal gear ring (36), and a third servo motor (311) is connected at the central axis of the second drive gear (310).

4. The surface treatment device based on 40Cr steel forgings according to claim 3, characterized in that, The clamping unit (39) includes a connecting block (391) fixedly disposed at one end of the rotating shaft (38). A first bolt (392) is symmetrically fixedly disposed at one end of the connecting block (391). A connecting arm (393) is symmetrically sleeved on the surface of the first bolt (392). A second bolt (394) is installed at one end of the connecting arm (393). A buffer pad (396) is sleeved on the surface of the second bolt (394).

5. The surface treatment device based on 40Cr steel forgings according to claim 1, characterized in that, The grinding assembly (7) also includes a second drive motor (73) fixedly installed at one end of the mounting box (72). The end of the piston rod of the second drive motor (73) passes through the side wall of the mounting box (72) and is equipped with a first rotating rod (74). The mounting box (72) is symmetrically provided with slots (721). The upper end of the mounting box (72) is threadedly connected to an adjusting screw (75). The lower end of the adjusting screw (75) is rotatably provided with a sliding block (76). The sliding block (76) is fixedly sleeved with a connecting shaft (77). One end of the connecting shaft (77) is connected to the grinding wheel (78). The inner side walls of the mounting box (72) are symmetrically rotatably provided with a second rotating rod (79). A conveyor belt (710) is provided between the first rotating rod (74), the second rotating rod (79) and the connecting shaft (77).

6. The surface treatment device based on 40Cr steel forgings according to claim 5, characterized in that, The bottom of the mounting box (72) is symmetrically provided with sliding grooves (722). One of the second rotating rods (79) is slidably disposed inside the sliding groove (722). Both ends of one of the second rotating rods (79) are equipped with U-shaped plates (711). One end of the U-shaped plate (711) is fixedly provided with a support rod (712). The outer surface of the support rod (712) is sleeved with a support sleeve (713). The outer surfaces of the support rod (712) and the support sleeve (713) are sleeved with springs (715).

7. The surface treatment device based on 40Cr steel forgings according to claim 1, characterized in that, The upper end of the dial (62) is engraved with scale lines (63) on the outside of the rotating shaft (64), and a pointer (69) is provided on the surface of the rotating shaft (64).

8. The surface treatment device based on 40Cr steel forgings according to claim 1, characterized in that, The outer edge of the turntable (717) and the outer edge of the grinding wheel (78) are on the same vertical line.

9. The surface treatment device based on 40Cr steel forgings according to claim 1, characterized in that, The upper end of the base plate (1) is provided with a feeding assembly (8). The feeding assembly (8) includes two second lead screws (81) rotatably disposed on the upper end of the base plate (1). The surfaces of the two second lead screws (81) are threaded with electric push rods (82). A third drive motor (83) is installed on the side wall of the base plate (1). One end of the output shaft of the third drive motor (83) is fixedly sleeved with a sprocket (84) on both of the two second lead screws (81). The multiple sprockets (84) are driven by a chain (85).

10. A surface treatment device based on 40Cr steel forgings according to claim 9, characterized in that, The feeding assembly (8) also includes a receiving plate (86) fixedly installed on the upper end of the two electric push rods (82), and the upper end of the receiving plate (86) is symmetrically fixedly provided with shaft support (87).

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