Grinding device for precision forgings of automobiles

Abstract

The application belongs to the technical field of automobile forging machining, and particularly relates to a grinding equipment for automobile precision forgings, which comprises a base, a support frame, a grinding table, a stepped positioning mechanism and a force pair type slip reduction mechanism, the support frame is symmetrically arranged on the upper walls of the two ends of the base, the grinding table is arranged on the upper wall of the support frame, the stepped positioning mechanism is arranged on the grinding table, and the force pair type slip reduction mechanism is arranged on the stepped positioning mechanism, the stepped positioning mechanism comprises an internal fixing mechanism, a driving mechanism, a distance sticking mechanism and a touch grinding mechanism, and the internal fixing mechanism is arranged on the upper wall of the grinding table. The grinding equipment for automobile precision forgings can match the fixing force of a forging with the grinding force of the forging, can ensure that the forging does not loosen during grinding operation, can ensure that the forging is not excessively positioned, and can grind forgings of different sizes.

Description

Technical Field

[0001] This invention belongs to the field of automotive forging processing technology, specifically referring to a grinding equipment for precision automotive forgings. Background Technology

[0002] Grinding is a process in which abrasive grains on a grinding wheel (bonded abrasive such as a grinding wheel, or coated abrasive such as abrasive belt) are used to perform micro-cutting on the surface of a workpiece. During grinding, the abrasive grains impact the workpiece surface at extremely high speeds, and through friction and cutting action, remove minute amounts of excess material from the workpiece surface, achieving a smooth and clean finish.

[0003] The existing forging grinding equipment currently has the following problems:

[0004] Existing forging grinding equipment tends to over-clamp forgings during the clamping and grinding process, which increases the difficulty of removing and placing forgings and damages the surface of the forgings. Therefore, it cannot meet the usage requirements of existing forging grinding equipment. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art, this solution provides a grinding equipment for automotive precision forgings that can match the fixing force of the forging with the grinding force of the forging, ensuring that the forging will not loosen during the grinding operation and will not be over-positioned, and can grind forgings of different sizes.

[0006] The technical solution adopted in this solution is as follows: This solution proposes a grinding equipment for precision automotive forgings, including a base, a support frame, a grinding table, a stepped positioning mechanism, and a force-resisting anti-slip mechanism. The support frame is symmetrically arranged on the upper walls at both ends of the base. The grinding table is located on the upper wall of the support frame. The stepped positioning mechanism is located on the grinding table. The force-resisting anti-slip mechanism is located on the stepped positioning mechanism. The stepped positioning mechanism includes an internal fixing mechanism, a driving mechanism, a contacting mechanism, and a grinding contact mechanism. The internal fixing mechanism is located on the upper wall of the grinding table. The driving mechanism is located on the bottom wall of the grinding table. The contacting mechanism is located on the side wall of the grinding table. The grinding contact mechanism is located on the contacting mechanism. The force-resisting anti-slip mechanism includes a grinding enhancement mechanism and a material unloading mechanism. The grinding enhancement mechanism is located on the driving mechanism, and the material unloading mechanism is located on the grinding enhancement mechanism.

[0007] As a further preferred embodiment of the present invention, the internal fixing mechanism includes a rotating ring plate and a stepped shaft-shaped cylinder. The rotating ring plate is disposed through the inner wall of the grinding table and is rotatably connected to the grinding table. The stepped shaft-shaped cylinder is disposed on the upper wall of the rotating ring plate and has an opening at its lower end. The driving mechanism includes a driving frame, a driving motor, and a driving shaft. The rotating ring plate is disposed on the bottom wall of the grinding table, the driving motor is disposed on the bottom wall of the driving frame, and the driving shaft passes through the driving frame and is disposed between the power end of the driving motor and the top wall of the stepped shaft-shaped cylinder. The contact distance mechanism includes an adjusting cylinder, a sliding magnetic block, an adjusting spring, and an adjusting electromagnet. Multiple sets of the adjusting cylinders are disposed through the inner wall of the grinding table. The grinding table sidewall has a through-type adjusting cylinder. The sliding magnetic block is slidably disposed on the inner wall of the adjusting cylinder. The adjusting spring is disposed between the sliding magnetic block and the inner wall of the adjusting cylinder. The adjusting electromagnet is disposed on the inner wall of the adjusting cylinder at the end away from the adjusting spring. The grinding mechanism includes a shaped rod, a grinding seat, a coarse grinding layer, and a fine grinding layer. The shaped rod passes through the adjusting cylinder and is disposed on the sidewall of the sliding magnetic block. Multiple sets of grinding seats are disposed at the end of the shaped rod away from the adjusting cylinder. The grinding seats correspond to different diameter parts of the stepped shaft-shaped cylinder. The coarse grinding layer is disposed on the sidewall of a set of oppositely disposed grinding seats on the outer side of the stepped shaft-shaped cylinder. The fine grinding layer is disposed on the sidewall of another set of oppositely disposed grinding seats.

[0008] In operation, initially, the adjusting spring is compressed, and the distance between the coarse and fine grinding layers and the side wall of the stepped shaft-shaped cylinder is at its minimum. The adjusting electromagnet is energized and generates magnetism. The adjusting electromagnet and the sliding magnetic block are set with opposite poles. The adjusting electromagnet is fixed to the inner wall of the adjusting cylinder and magnetically attracts the sliding magnetic block. The sliding magnetic block slides along the inner wall of the adjusting cylinder using the deformation of the adjusting spring. The sliding magnetic block, via a shaped rod, moves the grinding seat away from the side wall of the stepped shaft-shaped cylinder, increasing the distance between the coarse and fine grinding layers and the side wall of the stepped shaft-shaped cylinder. The annular forging is then fitted onto the outside of the stepped shaft-shaped cylinder, sliding down the side wall and engaging at the corresponding diameter position on the stepped shaft-shaped cylinder. The annular forging is fully inserted into the outer side of the stepped shaft-shaped cylinder by external force. The adjusting electromagnet is de-energized and demagnetized, and the adjusting spring elastically resets, causing the coarse grinding layer to adhere to the surface of the stepped shaft-shaped cylinder. The drive motor drives the drive shaft to rotate through the power end. The drive shaft drives the annular forging inserted on the outer side of the stepped shaft-shaped cylinder to rotate. During the rotation, the annular forging rubs against the coarse grinding layer, causing the coarse grinding layer to perform rough grinding operation on the annular forging. Subsequently, the adjusting electromagnet corresponding to the coarse grinding layer is energized and generates magnetism, and the coarse grinding layer moves away from the side wall of the stepped shaft-shaped cylinder. The adjusting electromagnet corresponding to the fine grinding layer is de-energized and demagnetized, and the fine grinding layer contacts the surface of the annular forging, performing fine grinding operation on the annular forging.

[0009] Preferably, the wear-increasing mechanism includes a steering block, a groove, a wear-increasing plate, a wear-increasing spring, a wear-increasing electromagnet, an oil-removing magnet, an oil-absorbing cotton layer, and an oil-removing groove. Multiple sets of the steering blocks are sequentially arranged from top to bottom on the side wall of the drive shaft. Multiple sets of the grooves are arranged on the side wall of the steering blocks, with each groove open at one end. The wear-increasing plate is slidably disposed inside the groove. The wear-increasing spring is disposed between the inner wall of the groove and the wear-increasing plate. The wear-increasing electromagnet is disposed on the inner wall of the groove on one side of the wear-increasing spring. The oil-removing magnet is disposed on the side of the wear-increasing plate closest to the wear-increasing electromagnet. The wear-increasing electromagnet and the oil-removing magnet... The oil-absorbing cotton layer is located on the side of the grinding plate away from the groove, and multiple sets of oil-removing grooves are located on the side wall of the stepped shaft-shaped cylinder. The oil-removing grooves are arranged in a continuous manner, and the turning block, groove, grinding plate, oil-absorbing cotton layer, and oil-removing grooves are arranged horizontally. The unloading mechanism includes an unloading rod, an unloading electromagnet, and a top magnet. Multiple sets of unloading rods are arranged through the inner wall of the grinding table outside the rotating ring plate. The unloading electromagnet is located on the upper wall of the base below the unloading rod, and the top magnet is located on the side of the unloading rod close to the unloading electromagnet. The unloading electromagnet and the top magnet are arranged opposite to each other.

[0010] During use, when the annular forging is engaged with the outer side of the stepped shaft-shaped cylinder of the corresponding size, the engagement friction is relatively large. Therefore, lubricating oil needs to be applied to the inner annular wall of the annular forging to reduce the resistance during installation onto the outer side of the stepped shaft-shaped cylinder. At this time, the adjusting electromagnet corresponding to the rough grinding layer is energized and generates magnetism. The adjusting electromagnet and the sliding magnetic block are set with the same pole. The adjusting electromagnet is fixed to the inner wall of the adjusting cylinder and pushes the sliding magnetic block through repulsion. The sliding magnetic block slides along the inner wall of the adjusting cylinder, driving the shaped rod. The shaped rod, through the grinding seat, causes the rough grinding layer to fit tightly against the side wall of the annular forging. The friction between the lubricated annular forging and the stepped shaft-shaped cylinder is relatively small. When the stepped shaft-shaped cylinder rotates to drive the annular forging, slippage may occur. Initially, the grinding spring is compressed, the grinding plate is retracted into the groove, and the grinding electromagnet is energized to generate magnetism. The grinding electromagnet and the degreasing magnet are set with the same poles. The grinding electromagnet pushes the degreasing magnet through repulsion. The degreasing magnet uses the deformation of the grinding spring to drive the grinding plate to extend out of the groove. The grinding plate drives the oil-absorbing cotton layer through the degreasing groove to contact the inner wall of the annular forging. Under the clamping of the coarse grinding layer, the annular forging remains relatively fixed. The drive shaft drives the oil-absorbing cotton layer to rotate through the steering block. The rotation of the oil-absorbing cotton layer wipes the lubricating oil on the inner wall of the annular forging. Adsorption reduces the lubricating oil on the inner wall of the annular forging, increasing the friction between the inner wall of the annular forging and the surface of the stepped shaft-shaped cylinder. Once the annular forging overcomes the clamping force of the coarse grinding layer, it rotates synchronously with the stepped shaft-shaped cylinder. At this point, the friction between the inner wall of the annular forging and the surface of the stepped shaft-shaped cylinder is greater than the clamping force of the coarse grinding layer on the annular forging. The stepped shaft-shaped cylinder drives the annular forging to rotate between the coarse grinding layers. Because the friction between the stepped shaft-shaped cylinder and the annular forging is slightly greater than that between the coarse grinding layer and the annular forging, the ground annular forging can be removed more easily from the outside of the stepped shaft-shaped cylinder, thus enhancing the grinding electromagnet. When energized, the magnet is generated. The grinding-enhancing electromagnet is fixed to the inner wall of the groove and pushes the degreasing magnet through repulsion. The degreasing magnet uses the deformation of the grinding-enhancing spring to drive the grinding plate to extend out of the groove. The grinding plate causes the oil-absorbing cotton layer to squeeze against the inner wall of the annular forging, and the lubricating oil inside the oil-absorbing cotton layer is squeezed out and coated on the inner wall of the annular forging. When the unloading electromagnet is energized, it generates magnetism. The unloading electromagnet and the top-loading magnet are set with the same pole. The unloading electromagnet pushes the top-loading magnet through repulsion. The top-loading magnet drives the unloading rod to rise and contact the bottom wall of the annular forging. Under the combined action of the upward force of the unloading rod and the lubricating oil, the annular forging gradually separates from the outside of the stepped shaft cylinder.

[0011] Specifically, a controller is provided on the upper wall of the base.

[0012] The controller is electrically connected to the drive motor, the pitch-adjusting electromagnet, the grinding-enhancing electromagnet, and the unloading electromagnet.

[0013] The beneficial effects achieved by this solution using the above structure are as follows:

[0014] Compared with existing technologies, this solution combines a stepped structure with a friction-increasing structure. Through the integrated use of a stepped positioning mechanism and a force-resisting anti-slip mechanism, along with the coordinated operation of an internal fixing mechanism, a driving mechanism, a contact mechanism, a friction-increasing mechanism, and a discharge mechanism, it can securely engage and fix ring forgings with different inner diameters. Pre-applying lubricating oil to the inner wall of the ring forging reduces resistance when it is installed onto the corresponding position on the outside of the stepped shaft-shaped cylinder, improving installation efficiency. Furthermore, the oil-absorbing cotton layer absorbs any remaining lubricating oil on the inner wall of the ring forging installed on the outside of the stepped shaft-shaped cylinder, increasing the friction between the stepped shaft-shaped cylinder and the ring forging. This facilitates the positioning of the annular forging. Simultaneously, as the annular forging rotates under the clamping force of the coarse grinding layer, it prevents excessive clamping on the outside of the stepped shaft-shaped cylinder, making it easier to place and remove the annular forging. The rotating oil-absorbing cotton layer wipes and absorbs the lubricating oil on the inner wall of the annular forging, reducing the amount of lubricating oil and increasing the friction between the inner wall of the annular forging and the surface of the stepped shaft-shaped cylinder. When the annular forging overcomes the clamping force of the coarse grinding layer, it rotates synchronously with the stepped shaft-shaped cylinder. At this point, the friction between the inner wall of the annular forging and the surface of the stepped shaft-shaped cylinder is greater than the clamping force of the coarse grinding layer, causing the stepped shaft-shaped cylinder to drive the annular forging to rotate between the coarse grinding layers. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this solution;

[0016] Figure 2 This is a bottom-view perspective of the design.

[0017] Figure 3 This is a schematic diagram of the drive shaft structure in this solution;

[0018] Figure 4 This is a schematic diagram of the grinding mechanism in this scheme;

[0019] Figure 5 This is a schematic diagram of the contact grinding mechanism in this solution;

[0020] Figure 6 This is a structural diagram of the base, support frame, grinding table, and stepped shaft-shaped cylinder of this solution;

[0021] Figure 7 This is the main view of this solution;

[0022] Figure 8 This is a top view of the plan;

[0023] Figure 9 for Figure 7 Sectional view of AA section;

[0024] Figure 10 for Figure 1 Enlarged structural view of section I;

[0025] Figure 11 for Figure 4 Enlarged structural view of Part II;

[0026] Figure 12 for Figure 6 Enlarged structural view of Part III.

[0027] The components are as follows: 1. Base, 2. Support frame, 3. Grinding table, 4. Stepped positioning mechanism, 5. Internal fixing mechanism, 6. Rotating ring plate, 7. Stepped shaft-shaped cylinder, 8. Drive mechanism, 9. Drive frame, 10. Drive motor, 11. Drive shaft, 12. Contact distance mechanism, 13. Adjusting distance cylinder, 14. Sliding magnetic block, 15. Adjusting distance spring, 16. Adjusting distance electromagnet, 17. Touch grinding mechanism, 18. Irregular rod, 19. Grinding seat, 20. Coarse grinding layer, 21. Fine grinding layer, 22. Force-type anti-slip mechanism, 23. Grinding enhancement mechanism, 24. Steering block, 25. Groove, 26. Grinding enhancement plate, 27. Grinding enhancement spring, 28. Grinding enhancement electromagnet, 29. Oil removal magnet, 30. Oil-absorbing cotton layer, 31. Unloading mechanism, 32. Unloading rod, 33. Unloading electromagnet, 34. Top material magnet, 35. Controller, 36. Oil removal tank.

[0028] The accompanying drawings are provided to further understand the present solution and form part of the specification. They are used together with the embodiments of the present solution to explain the present solution and do not constitute a limitation thereof. Detailed Implementation

[0029] The technical solutions in this embodiment will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this solution, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this solution without creative effort are within the scope of protection of this solution.

[0030] In the description of this solution, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this solution and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this solution.

[0031] like Figures 1-12As shown, the present solution proposes a grinding equipment for precision automotive forgings, including a base 1, a support frame 2, a grinding table 3, a stepped positioning mechanism 4, and a force-resisting anti-slip mechanism 22. The support frame 2 is symmetrically arranged on the upper walls of both ends of the base 1. The grinding table 3 is arranged on the upper wall of the support frame 2. The stepped positioning mechanism 4 is arranged on the grinding table 3. The force-resisting anti-slip mechanism 22 is arranged on the stepped positioning mechanism 4. The stepped positioning mechanism 4 includes an internal fixing mechanism 5, a driving mechanism 8, a contacting mechanism 12, and a grinding contact mechanism 17. The internal fixing mechanism 5 is arranged on the upper wall of the grinding table 3. The driving mechanism 8 is arranged on the bottom wall of the grinding table 3. The contacting mechanism 12 is arranged on the side wall of the grinding table 3. The grinding contact mechanism 17 is arranged on the contacting mechanism 12. The force-resisting anti-slip mechanism 22 includes a grinding enhancement mechanism 23 and a unloading mechanism 31. The grinding enhancement mechanism 23 is arranged on the driving mechanism 8, and the unloading mechanism 31 is arranged on the grinding enhancement mechanism 23.

[0032] The internal fixing mechanism 5 includes a rotating ring plate 6 and a stepped shaft-shaped cylinder 7. The rotating ring plate 6 is disposed through the inner wall of the grinding table 3 and is rotatably connected to the grinding table 3. The stepped shaft-shaped cylinder 7 is disposed on the upper wall of the rotating ring plate 6 and has an open lower end. The driving mechanism 8 includes a driving frame 9, a driving motor 10, and a driving shaft 11. The rotating ring plate 6 is disposed on the bottom wall of the grinding table 3, the driving motor 10 is disposed on the bottom wall of the driving frame 9, and the driving shaft 11 passes through the driving frame 9 and is disposed between the power end of the driving motor 10 and the top wall of the stepped shaft-shaped cylinder 7. The contact distance mechanism 12 includes an adjusting cylinder 13, a sliding magnetic block 14, an adjusting spring 15, and an adjusting electromagnet 16. Multiple sets of the adjusting cylinders 13 are disposed through the side wall of the grinding table 3. In the above configuration, the sliding magnetic block 14 is slidably disposed on the inner wall of the adjusting cylinder 13, the adjusting spring 15 is disposed between the sliding magnetic block 14 and the inner wall of the adjusting cylinder 13, and the adjusting electromagnet 16 is disposed on the inner wall of the adjusting cylinder 13 at the end away from the adjusting spring 15; the grinding mechanism 17 includes a shaped rod 18, a grinding seat 19, a coarse grinding layer 20 and a fine grinding layer 21. The shaped rod 18 passes through the adjusting cylinder 13 and is disposed on the side wall of the sliding magnetic block 14. Multiple sets of grinding seats 19 are disposed at the end of the shaped rod 18 away from the adjusting cylinder 13. The grinding seats 19 correspond to different diameter parts of the stepped shaft cylinder 7. The coarse grinding layer 20 is disposed on the side wall of a set of oppositely disposed grinding seats 19 on the outer side of the stepped shaft cylinder 7, and the fine grinding layer 21 is disposed on the side wall of another set of oppositely disposed grinding seats 19.

[0033] The wear-increasing mechanism 23 includes a steering block 24, a groove 25, a wear-increasing plate 26, a wear-increasing spring 27, a wear-increasing electromagnet 28, an oil-removing magnet 29, an oil-absorbing cotton layer 30, and an oil-removing groove 36. Multiple sets of the steering blocks 24 are sequentially arranged from top to bottom on the side wall of the drive shaft 11. Multiple sets of the grooves 25 are arranged on the side wall of the steering blocks 24, with one end open. The wear-increasing plate 26 is slidably disposed inside the groove 25. The wear-increasing spring 27 is disposed between the inner wall of the groove 25 and the wear-increasing plate 26. The wear-increasing electromagnet 28 is disposed on the inner wall of the groove 25 on one side of the wear-increasing spring 27. The oil-removing magnet 29 is disposed on the side of the wear-increasing plate 26 near the wear-increasing electromagnet 28. The wear-increasing electromagnet 28 and the oil-removing magnet 29 are connected. 9. The oil-absorbing cotton layer 30 is located on the side of the grinding plate 26 away from the groove 25. Multiple sets of oil-removing grooves 36 are located on the side wall of the stepped shaft cylinder 7. The oil-removing grooves 36 are arranged through the entire structure. The turning block 24, groove 25, grinding plate 26, oil-absorbing cotton layer 30 and oil-removing grooves 36 are arranged horizontally. The unloading mechanism 31 includes an unloading rod 32, an unloading electromagnet 33 and a top magnet 34. Multiple sets of unloading rods 32 are arranged through the inner wall of the grinding table 3 outside the rotating ring plate 6. The unloading electromagnet 33 is located on the upper wall of the base 1 below the unloading rod 32. The top magnet 34 is located on the side of the unloading rod 32 close to the unloading electromagnet 33. The unloading electromagnet 33 and the top magnet 34 are arranged opposite to each other.

[0034] The upper wall of the base 1 is equipped with a controller 35.

[0035] The controller 35 is electrically connected to the drive motor 10, the pitch-adjusting electromagnet 16, the grinding-enhancing electromagnet 28, and the unloading electromagnet 33, respectively.

[0036] In actual use, in the initial state, the adjusting spring 15 is compressed, and the distance between the coarse grinding layer 20 and the fine grinding layer 21 and the side wall of the stepped shaft cylinder 7 is at its minimum value. The controller 35 controls the adjusting electromagnet 16 to start. The adjusting electromagnet 16 generates magnetism when energized. The adjusting electromagnet 16 and the sliding magnetic block 14 are set with opposite poles. The adjusting electromagnet 16 is fixed to the inner wall of the adjusting cylinder 13 and attracts the sliding magnetic block 14 by magnetic force. The sliding magnetic block 14 slides along the inner wall of the adjusting cylinder 13 by the deformation of the adjusting spring 15. The sliding magnetic block 14 drives the grinding seat 19 away from the side wall of the stepped shaft cylinder 7 through the shaped rod 18, and the distance between the coarse grinding layer 20 and the fine grinding layer 21 and the side wall of the stepped shaft cylinder 7 increases.

[0037] The annular forging is inserted into the outer side of the stepped shaft cylinder 7. The annular forging slides down along the side wall of the stepped shaft cylinder 7 and engages with the part corresponding to the diameter of the stepped shaft cylinder 7. When the annular forging is engaged with the outer side of the stepped shaft cylinder 7 of the corresponding size, the engagement friction is large. It is necessary to apply lubricating oil to the annular inner wall of the annular forging to reduce the resistance of the annular forging when it is installed on the outer side of the stepped shaft cylinder 7. External force is used to fully engage the annular forging with the outer side of the stepped shaft cylinder 7.

[0038] The controller 35 controls the change in the direction of the current supplied to the pitch-adjusting electromagnet 16. At this time, the pitch-adjusting electromagnet 16, corresponding to the rough grinding layer 20, is set with the same pole as the sliding magnetic block 14. The pitch-adjusting electromagnet 16 is fixed to the inner wall of the pitch-adjusting cylinder 13 and pushes the sliding magnetic block 14 through repulsion. The sliding magnetic block 14 slides along the inner wall of the pitch-adjusting cylinder 13, driving the shaped rod 18. The shaped rod 18 drives the rough grinding layer 20 to fit tightly against the side wall of the annular forging through the grinding seat 19. The friction between the annular forging with lubricating oil and the stepped shaft-shaped cylinder 7 is small. When the stepped shaft-shaped cylinder 7 rotates and drives the annular forging, slippage will occur. In the initial state, the grinding spring 27 is compressed, the grinding plate 26 is retracted into the groove 25, and the controller 35 controls the grinding electromagnet 28 to start. The grinding electromagnet 28 is energized and generates magnetism. The grinding electromagnet 28 and the degreasing magnet 29 are set with the same pole. The grinding electromagnet 28 pushes the degreasing magnet 29 through repulsion. The degreasing magnet 29 uses the deformation of the grinding spring 27 to drive the grinding plate 26 to extend out of the groove 25. The grinding plate 26 drives the oil-absorbing cotton layer 30 to penetrate the degreasing groove 36 and contact the inner wall of the annular forging. Under the clamping of the coarse grinding layer 20, the annular forging remains relatively fixed.

[0039] The controller 35 controls the drive motor 10 to start. The drive motor 10 drives the drive shaft 11 to rotate through the power end. The drive shaft 11 drives the oil-absorbing cotton layer 30 to rotate through the steering block 24. The oil-absorbing cotton layer 30 rotates to wipe and absorb the lubricating oil on the inner wall of the annular forging. The lubricating oil on the inner wall of the annular forging decreases, and the friction between the inner wall of the annular forging and the surface of the stepped shaft cylinder 7 increases. When the annular forging overcomes the clamping force of the coarse grinding layer 20, the annular forging rotates synchronously with the stepped shaft cylinder 7. At this time, the friction between the inner wall of the annular forging and the surface of the stepped shaft cylinder 7 is greater than the clamping force of the coarse grinding layer 20 on the annular forging. The drive shaft 11 drives the annular forging to rotate between the coarse grinding layers 20 through the stepped shaft cylinder 7. During the rotation, the annular forging rubs against the coarse grinding layer 20, so that the coarse grinding layer 20 performs rough grinding operation on the annular forging.

[0040] After the ring forging is rough-machined, the controller 35 controls the change of the current direction inside the adjustable electromagnet 16 corresponding to the rough grinding layer 20. The adjustable electromagnet 16 and the sliding magnetic block 14 are set with opposite poles. The adjustable electromagnet 16 attracts the sliding magnetic block 14 by magnetic force. The sliding magnetic block 14 drives the rough grinding layer 20 away from the side wall of the ring forging through the shaped rod 18. The controller 35 controls the change of the magnetic pole of the adjustable electromagnet 16 corresponding to the fine grinding layer 21. The adjustable electromagnet 16 and the adjustable spring 15 are set with the same poles. The adjustable electromagnet 16 pushes the adjustable spring 15 by repulsion. The adjustable spring 15 drives the fine grinding layer 21 to fit against the surface of the ring forging through the shaped rod 18, and performs a fine grinding operation on the ring forging.

[0041] Because the friction between the stepped shaft cylinder 7 and the annular forging is slightly greater than that between the coarse grinding layer 20 and the annular forging, the ground annular forging can be removed from the outside of the stepped shaft cylinder 7 relatively easily. The controller 35 controls the grinding electromagnet 28 to start. The grinding electromagnet 28 generates magnetism when energized. The grinding electromagnet 28 is fixed to the inner wall of the groove 25 and pushes the degreasing magnet 29 through repulsion. The degreasing magnet 29 uses the deformation of the grinding spring 27 to drive the grinding plate 26 to extend out of the groove 25. The grinding plate 26 causes the oil-absorbing cotton layer 30 to squeeze against the inner wall of the annular forging, absorbing oil. The lubricating oil inside the cotton layer 30 is squeezed out and coated on the inner wall of the annular forging. The controller 35 controls the start of the unloading electromagnet 33. The unloading electromagnet 33 is energized and generates magnetism. The unloading electromagnet 33 and the top magnet 34 are set with the same pole. The unloading electromagnet 33 pushes the top magnet 34 through repulsion. The top magnet 34 drives the unloading rod 32 to rise and contact the bottom wall of the annular forging. Under the combined action of the upward force of the unloading rod 32 and the lubricating oil, the annular forging gradually separates from the outside of the stepped shaft cylinder 7, completing the grinding operation of the annular forging. The above operation can be repeated for the next use.

[0042] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0043] The present solution and its implementation methods have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present solution; the actual structure is not limited to this. In conclusion, if a person skilled in the art, inspired by this description, designs a similar structure and embodiment without departing from the inventive intent of this solution, such design should fall within the protection scope of this solution.

Claims

1. A grinding equipment for precision automotive forgings, comprising a base (1), a support frame (2), and a grinding table (3), characterized in that: It also includes a stepped positioning mechanism (4) and a force-resisting anti-slip mechanism (22). The support frame (2) is symmetrically arranged on the upper walls of both ends of the base (1). The grinding table (3) is arranged on the upper wall of the support frame (2). The stepped positioning mechanism (4) is arranged on the grinding table (3). The force-resisting anti-slip mechanism (22) is arranged on the stepped positioning mechanism (4). The stepped positioning mechanism (4) includes an internal fixing mechanism (5), a driving mechanism (8), a contacting mechanism (12), and a contact grinding mechanism (13). 7), the internal fixing mechanism (5) is located on the upper wall of the grinding table (3), the driving mechanism (8) is located on the bottom wall of the grinding table (3), the contact mechanism (12) is located on the side wall of the grinding table (3), the contact grinding mechanism (17) is located on the contact mechanism (12), the force-type anti-slip mechanism (22) includes a grinding enhancement mechanism (23) and a material unloading mechanism (31), the grinding enhancement mechanism (23) is located on the driving mechanism (8), and the material unloading mechanism (31) is located on the grinding enhancement mechanism (23); The drive mechanism (8) includes a drive shaft (11); The grinding mechanism (23) includes a steering block (24), a groove (25), a grinding plate (26), a grinding spring (27), a grinding electromagnet (28), an oil removal magnet (29), an oil-absorbing cotton layer (30), and an oil removal groove (36). Multiple sets of the steering blocks (24) are arranged sequentially from top to bottom on the side wall of the drive shaft (11). Multiple sets of the grooves (25) are arranged on the side wall of the steering blocks (24). The grooves (25) are open at one end. The grinding plate (26) is slidably arranged inside the groove (25). The grinding spring (27) is arranged between the inner wall of the groove (25) and the grinding plate (26). The grinding electromagnet (28) is arranged on the inner wall of the groove (25) on one side of the grinding spring (27). The internal fixing mechanism (5) includes a stepped shaft-shaped cylinder (7); The oil removal magnet (29) is located on the side of the grinding plate (26) close to the grinding electromagnet (28). The grinding electromagnet (28) and the oil removal magnet (29) are arranged opposite to each other. The oil-absorbing cotton layer (30) is located on the side of the grinding plate (26) away from the groove (25). Multiple sets of oil removal grooves (36) are located on the side wall of the stepped shaft cylinder (7). The oil removal grooves (36) are arranged in a through manner. The turning block (24), the groove (25), the grinding plate (26), the oil-absorbing cotton layer (30) and the oil removal grooves (36) are arranged horizontally. The grinding-enhancing electromagnet (28) and the degreasing magnet (29) are set with the same pole. The grinding-enhancing electromagnet (28) pushes the degreasing magnet (29) through repulsion. The degreasing magnet (29) uses the deformation of the grinding-enhancing spring (27) to drive the grinding plate (26) to extend out of the groove (25). The grinding plate (26) drives the oil-absorbing cotton layer (30) to penetrate the degreasing groove (36) and contact the inner wall of the annular forging.

2. The grinding equipment for precision automotive forgings according to claim 1, characterized in that: The internal fixing mechanism (5) also includes a rotating ring plate (6), which is disposed through the inner wall of the grinding table (3). The rotating ring plate (6) is rotatably connected to the grinding table (3). The stepped shaft-shaped cylinder (7) is disposed on the upper wall of the rotating ring plate (6), and the stepped shaft-shaped cylinder (7) is open at the lower end.

3. The grinding equipment for precision automotive forgings according to claim 2, characterized in that: The drive mechanism (8) also includes a drive frame (9) and a drive motor (10). The rotating ring plate (6) is located on the bottom wall of the grinding table (3), the drive motor (10) is located on the bottom wall of the drive frame (9), and the drive shaft (11) passes through the drive frame (9) and is located between the power end of the drive motor (10) and the top wall of the stepped shaft cylinder (7).

4. The grinding equipment for precision automotive forgings according to claim 3, characterized in that: The distance adjustment mechanism (12) includes a distance adjustment cylinder (13), a sliding magnetic block (14), a distance adjustment spring (15), and a distance adjustment electromagnet (16). Multiple sets of the distance adjustment cylinders (13) are disposed through the side wall of the grinding table (3). The distance adjustment cylinders (13) are disposed through the entire structure. The sliding magnetic block (14) is slidably disposed on the inner wall of the distance adjustment cylinder (13). The distance adjustment spring (15) is disposed between the sliding magnetic block (14) and the inner wall of the distance adjustment cylinder (13). The distance adjustment electromagnet (16) is disposed on the inner wall of the end of the distance adjustment cylinder (13) away from the distance adjustment spring (15).

5. The grinding equipment for precision automotive forgings according to claim 4, characterized in that: The grinding mechanism (17) includes a shaped rod (18), a grinding seat (19), a coarse grinding layer (20), and a fine grinding layer (21). The shaped rod (18) passes through the adjusting cylinder (13) and is located on the side wall of the sliding magnetic block (14). Multiple sets of grinding seats (19) are located at the end of the shaped rod (18) away from the adjusting cylinder (13). The grinding seats (19) correspond to different diameter parts of the stepped shaft cylinder (7). The coarse grinding layer (20) is located on the side wall of a set of grinding seats (19) arranged opposite to each other on the outside of the stepped shaft cylinder (7). The fine grinding layer (21) is located on the side wall of another set of grinding seats (19) arranged opposite to each other.

6. The grinding equipment for precision automotive forgings according to claim 5, characterized in that: The unloading mechanism (31) includes an unloading rod (32), an unloading electromagnet (33), and a top magnet (34). Multiple sets of the unloading rods (32) pass through the inner wall of the grinding table (3) located outside the rotating ring plate (6). The unloading electromagnet (33) is located on the upper wall of the base (1) below the unloading rod (32). The top magnet (34) is located on the side of the unloading rod (32) close to the unloading electromagnet (33). The unloading electromagnet (33) and the top magnet (34) are arranged opposite to each other.

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