An edge grinding device for a curved surface casting

Abstract

The present invention belongs to the technical field of casting edge grinding, and specifically refers to an edge grinding device for curved surface castings, including a curved surface casting body, an adjustable rolling support mechanism, a double-point alternating automatic arc mechanism, a flywheel type arc induction mechanism, and a grinding chamfering component. The present invention proposes a double-point alternating automatic arc mechanism and a flywheel type arc induction mechanism. Through the cross flywheel body that matches the arc section of the curved surface casting body, it can identify and sense the position where the arc section is located. When approaching the arc section, the relative position between the flywheel type arc induction mechanism and the curved surface casting body is fixed by locking the external rollers, and then with the center of the arc section of the curved surface casting body as the center of the circle, the T-shaped bracket is controlled to swing, so as to realize the grinding of the edge line of the arc section.

Description

Technical Field

[0001] The present invention belongs to the technical field of casting edge grinding, and specifically refers to an edge grinding device for curved surface castings. Background Art

[0002] Most motor housings are formed by casting. When the casting is just demolded, the edge part often has burrs. Therefore, in order to ensure the accuracy of the subsequent assembly process and avoid scratching the operators, it is necessary to perform a deburring step before assembly; for such parts that are not fixed on the machine tool, if the edge of the casting is a straight line, a chamfering tool is often used for chamfering. However, for parts with a curved edge where it is inconvenient to use a chamfering tool, it is difficult to ensure the efficiency and effect of manual chamfering. Summary of the Invention

[0003] In view of the above situation, in order to overcome the defects of the prior art, the present invention proposes an edge grinding device for curved surface castings that is simple to operate and can automatically perform corner positioning; the outer shell of the motor is mostly composed of tangent straight parts and arc parts; the grinding of the straight section is generally relatively simple, but for the grinding of the arc section, it is difficult for the current manual grinding device to ensure the positioning accuracy. To solve this problem, the present invention proposes a double-point alternating automatic arc mechanism and a flywheel-type arc induction mechanism. Through the cross flywheel body that matches the arc section of the curved surface casting body, it can identify and sense the position of the arc section. When approaching the arc section, the relative position between the flywheel-type arc induction mechanism and the curved surface casting body is fixed by locking the external roller, and then, with the center of the arc section of the curved surface casting body as the center of the circle, the T-shaped bracket is controlled to swing, so as to realize the grinding of the edge line of the arc section.

[0004] Moreover, in order to simplify the steps of manual operation, the present invention also creatively proposes a trigger switch assembly, which controls the on-off of the adsorption electromagnet by the contact or non-contact of contact point one and contact point two, so as to automatically control the sliding expansion and contraction of the hollow locking pin during the rotation and swing of the T-shaped bracket relative to the cross flywheel body; thus, without manual operation, only through a clever mechanical structure, the combined separation control of the first hollow convex head and the second card slot, and the combined separation control of the second hollow convex head and the first card slot are realized.

[0005] The technical solution adopted by the present invention is as follows: The present invention provides an edge grinding device for a curved surface casting, which includes a curved surface casting body, an adjustable rolling support mechanism, a double-point alternating automatic arc mechanism, a flywheel-type arc induction mechanism, and a grinding chamfering component. The adjustable rolling support mechanism is rollingly arranged on the curved surface casting body. The double-point alternating automatic arc mechanism is arranged on the adjustable rolling support mechanism. The flywheel-type arc induction mechanism is detachably arranged on the double-point alternating automatic arc mechanism. The grinding chamfering component is arranged on the adjustable rolling support mechanism.

[0006] Further, the adjustable rolling support mechanism includes a rolling support component, an adjusting and clamping component, and a top support component. The rolling support component is in rolling contact with the curved surface casting body. The adjusting and clamping component is arranged on the rolling support component. The top support component is arranged on the rolling support component.

[0007] Preferably, the rolling support component includes a grooved cross beam, a T-shaped bracket, a fixed fork, and a moving roller. The grooved cross beam is fixedly connected to the T-shaped bracket. A sliding adjustment groove is provided on the grooved cross beam. The grinding chamfering component is slidably adjusted in the sliding adjustment groove. Circular through holes and countersunk round holes are respectively provided at both ends of the T-shaped bracket. The fixed fork is fixedly connected to the T-shaped bracket. One of the moving rollers is rotatably arranged in the fixed fork.

[0008] As a further preference of the present invention, the adjusting and clamping component includes an adjusting substrate, a movable fork, and an adjusting stud. The adjusting substrate is fixedly connected to the grooved cross beam. The adjusting stud is threadedly connected to the adjusting substrate. The adjusting stud is rotatably arranged in the movable fork. Three of the moving rollers are rotatably arranged in the movable fork. By rotating the adjusting stud, the distance between the movable fork and the curved surface casting body can be adjusted.

[0009] The moving rollers located on both sides of the curved surface casting body can contact and press the curved surface casting body from both sides, so as to achieve the technical purpose of guiding and limiting the movement of the device according to the contour of the curved surface casting body itself during linear movement.

[0010] Four moving rollers are provided. Two of them are symmetrically distributed with respect to the middle curved surface casting body. The third and fourth ones are located outside the curved surface casting body and behind the moving direction. During linear movement, at least three moving rollers are in contact with the curved surface casting body at the same time, which can ensure that the direction of the T-shaped bracket is necessarily perpendicular to the current section of the curved surface casting body. Only when the position and direction of the T-shaped bracket are guaranteed can the processing position of the grinding chamfering component be correct.

[0011] As a further preferred embodiment of the present invention, the top support assembly includes a top fork frame and a top roller, the top fork frame is fixedly connected to the bottom of the grooved crossbeam, the top roller is rotatably arranged in the top fork frame, and the top fork frame is in rolling contact with the top surface of the curved casting body.

[0012] The top of the curved casting body is in rolling contact with the top roller, which can make the movement of the T-shaped bracket smoother on the one hand, and on the other hand ensure the fixation of the relative position of the grinding chamfering component and the top surface of the curved casting body, thereby ensuring the grinding effect of the grinding chamfering component.

[0013] Furthermore, the two-point alternating automatic arc mechanism includes a temporary locking component and a trigger switch component, the temporary locking component is arranged on the rolling support component, and the trigger switch component is fixed in the rolling support component.

[0014] Preferably, the temporary locking assembly includes a first card slot, a second card slot and an adsorption-type electromagnet, the first card slot and the second card slot are fixedly connected to the bottom of the T-shaped bracket, the first card slot is located at one end where the circular through hole is located, the second card slot is located at one end where the countersunk circular hole is located, and the adsorption-type electromagnet is engaged in the second card slot.

[0015] The first card slot is made of elastic material, and the second hollow protrusion can be inserted into or separated from the first card slot when the relative pressure between the second hollow protrusion and the first card slot is relatively large. When there is no relative pressure or the relative pressure is relatively small between the second hollow protrusion and the first card slot, the second hollow protrusion will not be separated from the first card slot;

[0016] The material elasticity of the second card slot is smaller than that of the first card slot. The temporary locking and releasing of the central locking assembly in the second card slot are controlled by the extension and retraction of the hollow lock pin. The movement of the trigger switch assembly can control whether the adsorption electromagnet is energized or not.

[0017] As a further preferred embodiment of the present invention, the trigger switch assembly includes a switch housing, contact one, a lifting contact head, a first return spring, contact two and a second return spring, the switch housing is fixed in a circular through hole, the contact one is fixed to the inner top of the switch housing, the lifting contact head is snap-fitted and slidably arranged in the switch housing, the first return spring is arranged between contact one and the lifting contact head, the upper and lower ends of the lifting contact head are respectively provided with a sleeve portion and a slope portion, the contact two is snap-fitted and slidably arranged in the sleeve portion, the second return spring is arranged between contact two and the lifting contact head, and there is a sliding resistance between the contact two and the sleeve portion.

[0018] Due to the resistance in the sliding of contact two in the sleeve part, when the lifting contact head slides slowly in the switch housing, contact one and contact two will remain in contact. When the lifting contact head quickly leaves contact one, contact two will temporarily follow the lifting contact head to leave contact one, and then will slowly reset and contact contact one again.

[0019] Further, the flywheel type arc induction mechanism includes a cross flywheel body, a flexible limit magnet, a central locking component and an adaptive locking roller component. The flexible limit magnet is arranged on the cross flywheel body and the rolling support component. The central locking component is arranged at the central position of the cross flywheel body. The adaptive locking roller component is annularly and evenly arranged at the end of the cross flywheel body.

[0020] Preferably, one of the flexible limit magnets is fixedly connected to the bottom of the T-shaped bracket, and the remaining flexible limit magnets are fixedly connected to the cross flywheel body. There will be a magnetic repulsive force when the flexible limit magnets are close to each other in pairs;

[0021] Under the action of the flexible limit magnet, when the second hollow convex head is combined with the first card slot and the first hollow convex head and the second card slot are separated, the cross flywheel body can only rotate freely within a certain range and cannot rotate completely freely in a circular motion, thus avoiding the jamming problem caused by too large a rotation angle deviation of the cross flywheel body.

[0022] As a further preference of the present invention, the central locking component includes a first hollow convex head, a first return spring, a hollow locking pin and a hydraulic conduit. The first hollow convex head is fixedly connected to the central position of the cross flywheel body. The first hollow convex head is detachably engaged in the second card slot. The hollow locking pin is engaged and slidably arranged in the first hollow convex head. The first return spring is arranged between the first hollow convex head and the hollow locking pin. The top of the hollow locking pin is provided with an armature part. The adsorption type electromagnet can generate an attractive force on the armature part when energized. One end of the hydraulic conduit is arranged in the first hollow convex head.

[0023] Through the telescopic sliding of the hollow locking pin, the locking and separation between the central locking component and the second card slot can be controlled. When the central locking component is locked in the second card slot, the T-shaped bracket will make a circular motion with the center of the cross flywheel body as the center, so as to realize the limitation and guidance of the T-shaped bracket when grinding the arc surface part of the curved surface casting body.

[0024] As a further preference of the present invention, the adaptive locking roller assembly includes a second hollow convex head, a third return spring, a locking piece, a lifting roller and an external roller. The second hollow convex head is fixedly connected to the end of the cross flywheel body. The second hollow convex head is detachably engaged in the first card slot. The locking piece is fixedly connected to the bottom of the second hollow convex head. The lifting roller is arranged in the second hollow convex head in a lifting manner. The third return spring is arranged between the second hollow convex head and the lifting roller. The external roller is fixedly connected to the lifting roller. The external roller is in rolling contact with the surface casting body.

[0025] Through the hydraulic linkage of the hydraulic conduit, when the central locking assembly is in the locked state, all the external rollers can be automatically locked. Since there is friction between the external roller and the surface casting body, when the external roller is locked, the position of the cross flywheel body and the position of its own center point can be kept fixed, thus ensuring the central fixation when the T-shaped bracket makes a circular motion until it is processed to the straight line area again.

[0026] Furthermore, the grinding and chamfering assembly includes a grinding adjustment plate, a grinding motor and a grinding wheel. The grinding adjustment plate is engaged and slidably arranged in the sliding adjustment slot. The grinding motor is fixedly connected to the grinding adjustment plate. The grinding wheel is arranged on the output shaft of the grinding motor. The grinding adjustment plate can slide and adjust and lock in the sliding adjustment slot.

[0027] The beneficial effects achieved by the present invention with the above structure are as follows:

[0028] (1) The moving rollers located on both sides of the surface casting body can contact and squeeze the surface casting body from both sides, so as to achieve the technical purpose of guiding and limiting the movement of the device according to the self-profile of the surface casting body during linear motion.

[0029] (2) There are four moving rollers. Two of them are symmetrically distributed with respect to the middle surface casting body. The third and fourth ones are located outside the surface casting body and behind the moving direction. During linear motion, at least three moving rollers are in contact with the surface casting body at the same time, which can ensure that the direction of the T-shaped bracket is necessarily perpendicular to the current section of the surface casting body at this time. Only when the position and direction of the T-shaped bracket are guaranteed can the processing position of the grinding and chamfering assembly be correct.

[0030] (3) The top of the surface casting body is in rolling contact with the top roller. On the one hand, it can make the movement of the T-shaped bracket smoother. On the other hand, it can also ensure the fixed relative position between the grinding and chamfering assembly and the top surface of the surface casting body, thus ensuring the grinding effect of the grinding and chamfering assembly.

[0031] (4) The first card slot is made of elastic material. When the relative pressure between the second hollow protrusion and the first card slot is relatively large, the second hollow protrusion can be inserted into or separated from the first card slot. When there is no relative pressure or the relative pressure is relatively small between the second hollow protrusion and the first card slot, the second hollow protrusion will not disengage from the first card slot.

[0032] (5) The elasticity of the material of the second card slot is less than that of the material of the first card slot. The temporary locking and release of the central locking component in the second card slot are controlled by the expansion and contraction of the hollow locking pin; the energization of the adsorption electromagnet can be controlled by the movement of the trigger switch component.

[0033] (6) Due to the resistance in the sliding of the contact point two in the sleeve part, when the lifting touch head slides slowly in the switch housing, the contact point one and the contact point two will remain in contact. When the lifting touch head quickly leaves the contact point one, the contact point two will temporarily follow the lifting touch head to leave the contact point one, and then will slowly reset and contact the contact point one again.

[0034] (7) Under the action of the flexible limiting magnet, when the second hollow protrusion is combined with the first card slot and the first hollow protrusion is separated from the second card slot, the cross flywheel body can only rotate freely within a certain range and cannot rotate completely freely in a circle, thus avoiding the jamming problem caused by too large a deviation in the rotation angle of the cross flywheel body.

[0035] (8) Through the expansion and contraction sliding of the hollow locking pin, the locking and separation between the central locking component and the second card slot can be controlled. When the central locking component is locked in the second card slot, the T-shaped bracket will move in a circle with the center of the cross flywheel body as the center, so as to realize the limiting and guiding of the T-shaped bracket when grinding the arc-shaped surface part of the curved surface casting body.

[0036] (9) Through the hydraulic linkage of the hydraulic conduit, when the central locking component is in the locked state, all external rollers can be automatically locked. Because there is friction between the external rollers and the curved surface casting body, when the external rollers are locked, the position of the cross flywheel body and the position of its own center point can be kept fixed, thus ensuring the fixed center when the T-shaped bracket moves in a circle until it is processed to the straight line area again. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 is a perspective view of an edge grinding device for a curved surface casting proposed by the present invention;

[0038] Figure 2 is a front view of an edge grinding device for a curved surface casting proposed by the present invention;

[0039] Figure 3 is a left view of an edge grinding device for a curved surface casting proposed by the present invention;

[0040] Figure 4 Top view of an edge grinding device for a curved surface casting proposed by the present invention;

[0041] Figure 5 is Figure 3 Cross-sectional view along cutting line A-A in

[0042] Figure 6 is Figure 5 Cross-sectional view along cutting line B-B in

[0043] Figure 7 is Figure 2 Cross-sectional view along cutting line C-C in

[0044] Figure 8 Explosion schematic diagram of an edge grinding device for a curved surface casting proposed by the present invention;

[0045] Figure 9 is Figure 8 Local enlarged view at position I in

[0046] Figure 10 is Figure 5 Local enlarged view at position II in

[0047] Figure 11 is Figure 6 Local enlarged view at position III in

[0048] Figure 12 is Figure 5 Local enlarged view at position IV in

[0049] Figure 13 is Figure 8 Local enlarged view at position V in

[0050] Among them, 1. Curved surface casting body, 2. Adjustable rolling support mechanism, 3. Double-point alternating automatic arc mechanism, 4. Flywheel-type arc induction mechanism, 5. Grinding and chamfering assembly, 6. Rolling support assembly, 7. Adjusting and clamping assembly, 8. Top support assembly, 9. Grooved cross beam, 10. T-shaped bracket, 11. Fixed fork bracket, 12. Moving roller, 13. Adjusting base plate, 14. Movable fork bracket, 15. Adjusting stud, 16. Top fork bracket, 17. Top roller, 18. Sliding adjustment groove, 19. Circular through hole, 20. Countersunk round hole, 21. Temporary locking assembly, 22. Trigger-type switch assembly, 23. First card slot, 24. Second card slot, 25. Adsorption type electromagnet, 26. Switch housing, 27. Contact point 1, 28. Lifting touch head, 29. First return spring, 30. Contact point 2, 31. Second return spring, 32. Slope part, 33. Sleeve part, 34. Cross flywheel body, 35. Flexible limit magnet, 36. Central locking assembly, 37. Adaptive locking type roller assembly, 38. First hollow convex head, 39. First return tension spring, 40. Hollow locking pin, 41. Hydraulic conduit, 42. Second hollow convex head, 43. Third return spring, 44. Locking piece, 45. Lifting roller, 46. External roller, 47. Armature part, 48. Grinding adjustment plate, 49. Grinding motor, 50. Grinding wheel.

[0051] The accompanying drawings are used to provide a further understanding of the present invention and form a part of the description. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention. Detailed implementation manners

[0052] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the scope of protection of the present invention.

[0053] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0054] Such as Figures 1 to 13As shown in the figure, the present invention provides an edge grinding device for a curved surface casting, which includes a curved surface casting body 1, an adjustable rolling support mechanism 2, a double-point alternating automatic arc mechanism 3, a flywheel type arc induction mechanism 4 and a grinding chamfering assembly 5. The adjustable rolling support mechanism 2 is rollingly arranged on the curved surface casting body 1, the double-point alternating automatic arc mechanism 3 is arranged on the adjustable rolling support mechanism 2, the flywheel type arc induction mechanism 4 is detachably arranged on the double-point alternating automatic arc mechanism 3, and the grinding chamfering assembly 5 is arranged on the adjustable rolling support mechanism 2.

[0055] The adjustable rolling support mechanism 2 includes a rolling support assembly 6, an adjusting and clamping assembly 7 and a top support assembly 8. The rolling support assembly 6 is in rolling contact with the curved surface casting body 1, the adjusting and clamping assembly 7 is arranged on the rolling support assembly 6, and the top support assembly 8 is arranged on the rolling support assembly 6.

[0056] The rolling support assembly 6 includes a grooved cross beam 9, a T-shaped bracket 10, a fixed fork 11 and a moving roller 12. The grooved cross beam 9 is fixedly connected to the T-shaped bracket 10. A sliding adjustment groove 18 is provided on the grooved cross beam 9, and the grinding chamfering assembly 5 is slidably adjusted and arranged in the sliding adjustment groove 18. Circular through holes 19 and counterbored round holes 20 are respectively provided at both ends of the T-shaped bracket 10. The fixed fork 11 is fixedly connected to the T-shaped bracket 10, and one of the moving rollers 12 is rotatably arranged in the fixed fork 11.

[0057] The grinding chamfering assembly 5 includes a grinding adjustment plate 48, a grinding motor 49 and a grinding wheel 50. The grinding adjustment plate 48 is clamped and slidably arranged in the sliding adjustment groove 18. The grinding motor 49 is fixedly connected to the grinding adjustment plate 48, and the grinding wheel 50 is arranged on the output shaft of the grinding motor 49. The grinding adjustment plate 48 can slide and adjust and be locked in the sliding adjustment groove 18.

[0058] The adjusting and clamping assembly 7 includes an adjusting base plate 13, a movable fork 14 and an adjusting stud 15. The adjusting base plate 13 is fixedly connected to the grooved cross beam 9. The adjusting stud 15 is threadedly connected to the adjusting base plate 13. The adjusting stud 15 is rotatably arranged in the movable fork 14, and three of the moving rollers 12 are rotatably arranged in the movable fork 14. By rotating the adjusting stud 15, the distance between the movable fork 14 and the curved surface casting body 1 can be adjusted.

[0059] The moving rollers 12 located on both sides of the curved surface casting body 1 can contact and press the curved surface casting body 1 from both sides, so as to achieve the technical purpose of guiding and limiting the movement of the device according to the contour of the curved surface casting body 1 itself during linear movement.

[0060] There are four movable rollers 12, two of which are symmetrically distributed relative to the middle curved casting body 1, and the third and fourth are located outside the curved casting body 1 and behind the movement direction. During linear motion, at least three movable rollers 12 are in contact with the curved casting body 1 at the same time, which can ensure that the direction of the T-shaped bracket 10 is necessarily perpendicular to the curved casting body 1 of the current section. Only when the position and direction of the T-shaped bracket 10 are guaranteed can the processing position of the grinding and chamfering component 5 be guaranteed to be correct.

[0061] The top support assembly 8 includes a top fork frame 16 and a top roller 17. The top fork frame 16 is fixedly connected to the bottom of the grooved crossbeam 9. The top roller 17 is rotatably arranged in the top fork frame 16. The top fork frame 16 is in rolling contact with the top surface of the curved casting body 1.

[0062] The top of the curved casting body 1 is in rolling contact with the top roller 17, which can make the movement of the T-shaped bracket 10 smoother on the one hand, and on the other hand ensure the fixation of the relative position of the grinding and chamfering component 5 and the top surface of the curved casting body 1, thereby ensuring the grinding effect of the grinding and chamfering component 5.

[0063] The double-point alternating automatic arc mechanism 3 comprises a temporary locking component 21 and a trigger switch component 22 . The temporary locking component 21 is arranged on the rolling support component 6 , and the trigger switch component 22 is fixed in the rolling support component 6 .

[0064] The temporary locking assembly 21 includes a first card slot 23, a second card slot 24 and an adsorption type electromagnet 25. The first card slot 23 and the second card slot 24 are fixedly connected to the bottom of the T-shaped bracket 10. The first card slot 23 is located at one end where the circular through hole 19 is located, and the second card slot 24 is located at one end where the countersunk circular hole 20 is located. The adsorption type electromagnet 25 is engaged in the second card slot 24.

[0065] The first card slot 23 is made of elastic material. When the relative pressure between the second hollow protrusion 42 and the first card slot 23 is relatively large, the second hollow protrusion 42 can be inserted into the first card slot 23 or separated from the first card slot 23. When there is no relative pressure or the relative pressure is relatively small between the second hollow protrusion 42 and the first card slot 23, the second hollow protrusion 42 will not be separated from the first card slot 23.

[0066] The material elasticity of the second slot 24 is less than that of the first slot 23 , and the temporary locking and releasing of the central locking assembly 36 in the second slot 24 is controlled by the extension and retraction of the hollow lock pin 40 ; the movement of the trigger switch assembly 22 can control whether the adsorption electromagnet 25 is energized or not.

[0067] The trigger switch assembly 22 includes a switch housing 26, a first contact 27, a lifting trigger head 28, a first return spring 29, a second contact 30, and a second return spring 31. The switch housing 26 is fixedly connected to the circular through-hole 19. The first contact 27 is fixedly connected to the inner top of the switch housing 26. The lifting trigger head 28 is engaged and slidably disposed in the switch housing 26. The first return spring 29 is disposed between the first contact 27 and the lifting trigger head 28. The upper and lower ends of the lifting trigger head 28 are respectively provided with a sleeve portion 33 and a ramp portion 32. The second contact 30 is engaged and slidably disposed in the sleeve portion 33. The second return spring 31 is disposed between the second contact 30 and the lifting trigger head 28. There is a sliding resistance between the second contact 30 and the sleeve portion 33.

[0068] Due to the resistance of the sliding of the second contact 30 in the sleeve portion 33, when the lifting trigger head 28 slides slowly in the switch housing 26, the first contact 27 and the second contact 30 will remain in contact. When the lifting trigger head 28 quickly leaves the first contact 27, the second contact 30 will temporarily follow the lifting trigger head 28 to leave the first contact 27, and then will slowly reset and contact the first contact 27 again.

[0069] The flywheel-type arc induction mechanism 4 includes a cross flywheel body 34, a flexible limit magnet 35, a central locking assembly 36, and an adaptive locking roller assembly 37. The flexible limit magnet 35 is disposed on the cross flywheel body 34 and the rolling support assembly 6. The central locking assembly 36 is disposed at the center of the cross flywheel body 34. The adaptive locking roller assembly 37 is annularly and evenly disposed at the end of the cross flywheel body 34.

[0070] One of the flexible limit magnets 35 is fixedly connected to the bottom of the T-shaped bracket 10, and the remaining flexible limit magnets 35 are fixedly connected to the cross flywheel body 34. There is a magnetic repulsive force when the flexible limit magnets 35 approach each other in pairs;

[0071] Under the action of the flexible limit magnet 35, when the second hollow convex head 42 is combined with the first card slot 23 and the first hollow convex head 38 is separated from the second card slot 24, the cross flywheel body 34 can only rotate freely within a certain range and cannot rotate completely freely in a circular motion, thereby avoiding the jamming problem caused by excessive rotation angle deviation of the cross flywheel body 34.

[0072] The central locking assembly 36 includes a first hollow convex head 38, a first return spring 39, a hollow locking pin 40, and a hydraulic conduit 41. The first hollow convex head 38 is fixedly connected to the center of the cross flywheel body 34. The first hollow convex head 38 is detachably engaged in the second card slot 24. The hollow locking pin 40 is engaged and slidably disposed in the first hollow convex head 38. The first return spring 39 is disposed between the first hollow convex head 38 and the hollow locking pin 40. The top of the hollow locking pin 40 is provided with an armature portion 47. When the adsorption electromagnet 25 is energized, it can generate an attractive force on the armature portion 47. One end of the hydraulic conduit 41 is disposed in the first hollow convex head 38.

[0073] Through the telescopic sliding of the hollow locking pin 40, the locking and separation between the central locking assembly 36 and the second card slot 24 can be controlled. When the central locking assembly 36 is locked in the second card slot 24, the T-shaped bracket 10 will perform a circular motion with the center of the cross flywheel body 34 as the center of the circle. Thus, when grinding the arc surface portion of the curved surface casting body 1, the limiting and guiding of the T-shaped bracket 10 are realized.

[0074] The self-adaptive locking roller assembly 37 includes a second hollow convex head 42, a third return spring 43, a locking piece 44, a lifting roller 45, and an external roller 46. The second hollow convex head 42 is fixedly connected to the end of the cross flywheel body 34. The second hollow convex head 42 is detachably engaged in the first card slot 23. The locking piece 44 is fixedly connected to the bottom of the second hollow convex head 42. The lifting roller 45 is liftably disposed in the second hollow convex head 42. The third return spring 43 is disposed between the second hollow convex head 42 and the lifting roller 45. The external roller 46 is fixedly connected to the lifting roller 45. The external roller 46 is in rolling contact with the curved surface casting body 1.

[0075] Through the hydraulic linkage of the hydraulic conduit 41, when the central locking assembly 36 is in a locked state, all the external rollers 46 can be automatically locked. Since there is a frictional force between the external roller 46 and the curved surface casting body 1, when the external roller 46 is locked, the position of the cross flywheel body 34 and the position of its own center point can be kept fixed. Thus, the center is fixed when the T-shaped bracket 10 performs a circular motion until it is processed to the straight region again.

[0076] During specific use, first, the user needs to place the curved surface casting body 1 vertically. The curved surface casting body 1 is composed of a plurality of straight portions and arc portions, and the arc portion is a ninety-degree fillet.

[0077] When this device is used for machining the straight part, at least three moving rollers 12 are in rolling contact with the curved casting body 1 simultaneously. Two of the moving rollers 12 are symmetrically arranged with respect to the middle curved casting body 1. Since the arc part of the curved casting body 1 protrudes outward, the third and fourth moving rollers 12 are also located outside the curved casting body 1 and behind the traveling direction.

[0078] Due to the position limitation of the moving rollers 12 on the curved casting body 1, when this device is used for machining the straight part, the T-shaped bracket 10 always remains perpendicular to the curved casting body 1. Therefore, during this process, by pushing the T-shaped bracket 10 by hand or using an external device to push the T-shaped bracket 10, it is possible to grind the edge lines of the inner and outer edges of the curved casting body 1 during the high-speed rotation of the grinding wheel 50.

[0079] During this process, the second hollow convex head 42 is temporarily locked in the first card slot 23, and the two are in a combined state, while the first hollow convex head 38 and the second card slot 24 are in a non-combined state. At this time, the hollow locking pin 40 is in a retracted state under the pulling force of the first return spring 39. Therefore, the lifting roller 45 is also in an extended state, and the external roller 46 can rotate freely; when the adjustable rolling support mechanism 2 rolls along the curved casting body 1, the external roller 46 of the self-adaptive locking roller assembly 37 engaged in the first card slot 23 also rolls in contact with the curved casting body 1, and the cross flywheel body 34 will swing within a certain range under the magnetic repulsive force of the flexible limit magnet 35. At this time, the swing limit angle on one side of the cross flywheel body 34 is when the front external roller 46 contacts the inner wall of the curved casting body 1, and the swing limit angle on the other side is when the flexible limit magnet 35 on the T-shaped bracket 10 approaches the flexible limit magnet 35 on the cross flywheel body 34;

[0080] As the adjustable rolling support mechanism 2 approaches the arc part of the curved casting body 1, under the limit of the inner wall of the arc part of the curved casting body 1, the swing range of the cross flywheel body 34 becomes smaller and smaller. When the moving roller 12 located inside is about to enter the arc part from the straight part of the curved casting body 1, the front external roller 46 has also been pressed against the inner wall of the arc of the curved casting body 1. At this time, the two external rollers 46 are in contact with the inner wall of the curved casting body 1 simultaneously;

[0081] As it continues to advance, since the distance between the external rollers 46 matches the diameter of the arc part of the curved casting body 1, when the moving roller 12 reaches the position where the straight part of the curved casting body 1 is tangent to the arc part, the two rolling support components 6 are respectively located at the two endpoints of the arc part. At this time, the first hollow convex head 38 slides into the second card slot 24, and the two are transformed into a combined state;

[0082] When the first hollow convex head 38 enters the second card slot 24, since the adsorption electromagnet 25 is energized at this time, under the magnetic suction force between the adsorption electromagnet 25 and the armature part 47, the hollow locking pin 40 will slide out and enter the countersunk round hole 20 to complete the temporary locking of the central locking component 36 and the second card slot 24;

[0083] When the hollow locking pin 40 extends, the liquid in each second hollow convex head 42 will enter the first hollow convex head 38 through the hydraulic conduit 41, so that the lifting roller 45 retracts into the second hollow convex head 42 against the elastic force of the third return spring 43. When the lifting roller 45 retracts, its side will contact and squeeze the locking piece 44, thereby realizing the locking (non-rotating) of all external rollers 46;

[0084] At this time, the position of the cross flywheel body 34 is fixed according to the arc part of the curved surface casting body 1, and then the adjustable rolling support mechanism 2 is continuously pushed. The second hollow convex head 42 in the first card slot 23 will separate from the first card slot 23. At this time, the T-shaped bracket 10 makes an arc movement with the center position of the cross flywheel body 34 as the center of the circle, and can realize the edge grinding of the curved surface part of the curved surface casting body 1;

[0085] As the T-shaped bracket 10 rotates, when the next second hollow convex head 42 contacts the lifting trigger head 28, it will squeeze the lifting trigger head 28 towards the inside of the switch housing 26 through the ramp part 32. When the second hollow convex head 42 is stuck into the first card slot 23, the lifting trigger head 28 that loses the top support quickly rebounds under the elastic force of the first return spring 29. At this time, due to the sliding resistance between the second contact 30 and the sleeve part 33, the second contact 30 will first rebound together with the lifting trigger head 28, and then reset under the elastic force of the second return spring 31;

[0086] When the second contact 30 and the first contact 27 are separated, the adsorption electromagnet 25 is powered off, and the armature part 47 that loses the magnetic suction force will rebound under the elastic force of the first return tension spring 39. On the one hand, part of the liquid in the first hollow convex head 38 flows back to the second hollow convex head 42 to release the rotational locking of the external roller 46, and on the other hand, the first hollow convex head 38 will also disengage from the second card slot 24; then the cross flywheel body 34 swings forward under the magnetic repulsive force of the flexible limit magnet 35; thereby grinding the next straight part of the curved surface casting body 1.

[0087] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0088] The above describes the present invention and its embodiments. Such a description is not restrictive. What is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, if those of ordinary skill in the art are inspired by it and, without departing from the gist of the present invention, design similar structural forms and embodiments to this technical solution without creative efforts, they shall fall within the protection scope of the present invention.

Claims

1. An edge grinding device for a curved surface casting, characterized in that, It includes a curved surface casting body (1), an adjustable rolling support mechanism (2), a double-point alternating automatic arc mechanism (3), a flywheel-type arc induction mechanism (4) and a grinding and chamfering assembly (5). The adjustable rolling support mechanism (2) is arranged on the curved surface casting body (1) in a rolling manner. The double-point alternating automatic arc mechanism (3) is arranged on the adjustable rolling support mechanism (2). The flywheel-type arc induction mechanism (4) is detachably arranged on the double-point alternating automatic arc mechanism (3). The grinding and chamfering assembly (5) is arranged on the adjustable rolling support mechanism (2). The adjustable rolling support mechanism (2) includes a rolling support assembly (6), and the rolling support assembly (6) is in rolling contact with the curved surface casting body (1). The double-point alternating automatic arc mechanism (3) includes a temporary locking assembly (21) and a trigger switch assembly (22). The temporary locking assembly (21) is arranged on the rolling support assembly (6), and the trigger switch assembly (22) is fixedly connected in the rolling support assembly (6). The flywheel-type arc induction mechanism (4) includes a cross flywheel body (34), a flexible limit magnet (35), a central locking assembly (36) and an adaptive locking roller assembly (37). The flexible limit magnet (35) is arranged on the cross flywheel body (34) and the rolling support assembly (6). The central locking assembly (36) is arranged at the central position of the cross flywheel body (34). The adaptive locking roller assembly (37) is annularly and evenly arranged at the end of the cross flywheel body (34).

2. The edge grinding device for a curved surface casting according to claim 1, characterized in that: The adjustable rolling support mechanism (2) further includes an adjusting and clamping assembly (7) and a top support assembly (8). The adjusting and clamping assembly (7) is arranged on the rolling support assembly (6), and the top support assembly (8) is arranged on the rolling support assembly (6).

3. The edge grinding device for a curved surface casting according to claim 2, wherein: The rolling support assembly (6) includes a grooved cross beam (9), a T-shaped bracket (10), a fixed fork (11) and a moving roller (12). The grooved cross beam (9) is fixedly connected to the T-shaped bracket (10). A sliding adjustment groove (18) is arranged on the grooved cross beam (9). The grinding and chamfering assembly (5) is arranged in the sliding adjustment groove (18) in a sliding and adjustable manner. Circular through holes (19) and countersunk round holes (20) are respectively arranged at both ends of the T-shaped bracket (10). The fixed fork (11) is fixedly connected to the T-shaped bracket (10). One of the moving rollers (12) is rotatably arranged in the fixed fork (11).

4. The edge grinding device for a curved surface casting according to claim 3, wherein: The temporary locking assembly (21) includes a first card slot (23), a second card slot (24) and an adsorption electromagnet (25). The first card slot (23) and the second card slot (24) are fixedly connected to the lower part of the T-shaped bracket (10). The first card slot (23) is located at the end where the circular through hole (19) is located. The second card slot (24) is located at the end where the countersunk round hole (20) is located. The adsorption electromagnet (25) is snap-fitted in the second card slot (24).

5. The edge grinding device for a curved surface casting according to claim 4, characterized in that: The trigger switch assembly (22) includes a switch housing (26), a first contact (27), a lifting trigger head (28), a first return spring (29), a second contact (30), and a second return spring (31). The switch housing (26) is fixedly connected to the circular through-hole (19). The first contact (27) is fixedly connected to the inner top of the switch housing (26). The lifting trigger head (28) is snap-fitted and slidably disposed in the switch housing (26). The first return spring (29) is disposed between the first contact (27) and the lifting trigger head (28). The upper and lower ends of the lifting trigger head (28) are respectively provided with a sleeve portion (33) and a ramp portion (32). The second contact (30) is snap-fitted and slidably disposed in the sleeve portion (33). The second return spring (31) is disposed between the second contact (30) and the lifting trigger head (28). There is a sliding resistance between the second contact (30) and the sleeve portion (33).

6. The edge grinding device for a curved surface casting according to claim 5, characterized in that: One of the flexible limiting magnets (35) is fixedly connected to the bottom of the T-shaped bracket (10), and the remaining flexible limiting magnets (35) are fixedly connected to the cross flywheel body (34). There is a magnetic repulsive force when the flexible limiting magnets (35) approach each other in pairs; The central locking assembly (36) includes a first hollow convex head (38), a first return tension spring (39), a hollow locking pin (40), and a hydraulic conduit (41). The first hollow convex head (38) is fixedly connected to the central position of the cross flywheel body (34). The first hollow convex head (38) is detachably snap-fitted into the second card slot (24). The hollow locking pin (40) is snap-fitted and slidably disposed in the first hollow convex head (38). The first return tension spring (39) is disposed between the first hollow convex head (38) and the hollow locking pin (40). The top of the hollow locking pin (40) is provided with an armature portion (47). When the adsorption electromagnet (25) is energized, it can generate an attractive force on the armature portion (47). One end of the hydraulic conduit (41) is disposed in the first hollow convex head (38).

7. An edge grinding device for a curved surface casting according to claim 6, characterized in that: The adaptive locking roller assembly (37) includes a second hollow convex head (42), a third return spring (43), a locking piece (44), a lifting roller shaft (45), and an external roller (46). The second hollow convex head (42) is fixedly connected to the end of the cross flywheel body (34). The second hollow convex head (42) is detachably snap-fitted into the first card slot (23). The locking piece (44) is fixedly connected to the bottom of the second hollow convex head (42). The lifting roller shaft (45) is lifted and disposed in the second hollow convex head (42). The third return spring (43) is disposed between the second hollow convex head (42) and the lifting roller shaft (45). The external roller (46) is fixedly connected to the lifting roller shaft (45). The external roller (46) is in rolling contact with the curved casting body (1).

8. An edge grinding device for a curved surface casting according to claim 7, characterized in that: The adjusting and clamping assembly (7) includes an adjusting base plate (13), a movable fork (14) and an adjusting stud (15). The adjusting base plate (13) is fixedly connected to the grooved cross beam (9). The adjusting stud (15) is threadedly connected to the adjusting base plate (13). The adjusting stud (15) is rotatably arranged in the movable fork (14). Three of the moving rollers (12) are rotatably arranged in the movable fork (14). By rotating the adjusting stud (15), the distance between the movable fork (14) and the curved casting body (1) can be adjusted.

9. The edge grinding device for a curved surface casting according to claim 8, wherein: The top support assembly (8) includes a top fork (16) and a top roller (17). The top fork (16) is fixedly connected to the lower part of the grooved cross beam (9). The top roller (17) is rotatably arranged in the top fork (16). The top fork (16) is in rolling contact with the top surface of the curved casting body (1).

10. An edge grinding device for a curved surface casting according to claim 9, characterized in that: The grinding and chamfering assembly (5) includes a grinding adjusting plate (48), a grinding motor (49) and a grinding wheel (50). The grinding adjusting plate (48) is snap-fitted and slidably arranged in the sliding adjusting groove (18). The grinding motor (49) is fixedly connected to the grinding adjusting plate (48). The grinding wheel (50) is arranged on the output shaft of the grinding motor (49). The grinding adjusting plate (48) can be slidably adjusted and locked in the sliding adjusting groove (18).

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