Grinding device of spherical bushing for automobile

Abstract

The invention belongs to the technical field of ball socket lining grinding, and particularly relates to a grinding device of a spherical bushing for an automobile, which comprises a self-adaptive rotary grinding mechanism, a ball socket automatic clamping mechanism, a symmetric lifting mechanism and a main body bottom plate, the self-adaptive rotary grinding mechanism is arranged on the symmetric lifting mechanism, and the ball socket automatic clamping mechanism is arranged on the main body bottom plate. The automatic ball socket clamping mechanism is arranged on the main body bottom plate, and the symmetrical lifting mechanisms are symmetrically arranged on the main body bottom plate. According to the self-adaptive rotary grinding mechanism, through centrifugal force generated by rotation of the rotary main shaft, the direction of the deflection rod can be controllably adjusted, the extrusion force between the grinding head and the hollow ball socket can be automatically adjusted, if the extrusion force is too small, the grinding efficiency can be seriously affected, and if the extrusion force is too large, the grinding efficiency can be greatly improved. And the grinding head at the top cannot smoothly enter the hollow ball socket.

Description

Technical Field

[0001] The invention belongs to the technical field of ball socket liner grinding, and in particular relates to a grinding device for a spherical bushing for an automobile. Background Art

[0002] The fit between the ball head and the socket is a sliding surface contact, so in order to ensure the smooth rotation of the contact part, both the ball head and the socket need to be ground; compared with the outer surface of the ball head that needs to be ground, the grinding of the socket lining is more difficult; this is mainly because the internal space of the socket lining is larger than the opening and both are smooth curved surfaces, making it inconvenient for the tool to enter, and after entering, it is also inconvenient to adjust the direction of the tool base a second time in the narrow space. 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 a grinding device for a spherical bushing for an automobile, which can automatically change the angle of the grinding head through a small linkage structure after extending into the ball socket; if the direction of the grinding head is to be adjusted in a narrow space so that the working range of the small grinding head can radiate to the inner wall of the entire ball socket liner, a motor cannot be set at the end of the rotating spindle. In order to solve this problem, the present invention creatively proposes an adaptive rotary grinding mechanism, which can not only controllably adjust the direction of the deflection rod through the centrifugal force generated by the rotation of the rotating spindle, but also automatically adjust the extrusion pressure between the grinding head and the ball socket liner, thereby overcoming the technical contradiction that the extrusion pressure cannot be too large or too small; if the extrusion pressure is too small, the grinding efficiency will be seriously affected, and if the extrusion pressure is too large, the top grinding head will not be able to smoothly enter the ball socket liner.

[0004] Moreover, in order to simplify the operation steps and improve the clamping accuracy, the present invention also proposes a ball-and-socket automatic clamping mechanism, which can automatically adjust the direction and position of the round shaft portion during the process of clamping the round shaft portion through evenly arranged and synchronously moving lateral clamping blocks.

[0005] The technical solution adopted by the present invention is as follows: The present invention proposes a grinding device for a spherical bushing for an automobile, comprising an adaptive rotary grinding mechanism, a ball socket automatic clamping mechanism, a symmetrical lifting mechanism and a main body bottom plate, wherein the adaptive rotary grinding mechanism is arranged on the symmetrical lifting mechanism, the ball socket automatic clamping mechanism is arranged on the main body bottom plate, and the symmetrical lifting mechanism is symmetrically arranged on the main body bottom plate.

[0006] Furthermore, the adaptive rotary grinding mechanism includes a beam assembly, an adaptive torsion assembly and a self-telescopic pressure assembly, wherein the beam assembly is arranged on the lifting execution assembly, the adaptive torsion assembly is rotatably arranged at the bottom of the beam assembly, and the self-telescopic pressure assembly is symmetrically arranged at both ends of the adaptive torsion assembly.

[0007] The adaptive rotary grinding mechanism can actively control the horizontal angle of the self-retractable pressure-applying assembly according to the different rotation speeds, so that the grinding range of the adaptive rotary grinding mechanism can cover the entire inner wall of the ball socket liner during the rotation process.

[0008] Preferably, the crossbeam assembly includes a crossbeam body and a rotating motor, the crossbeam body is arranged on the lifting and lowering actuator, the rotating motor is arranged in the middle position of the crossbeam body, a rotating spindle is arranged below the rotating motor, a bottom fork frame is arranged at the end of the rotating spindle, and a fork frame bottom circular hole is arranged at the end of the bottom fork frame.

[0009] The angle of the self-retractable pressure assembly can be actively controlled by adjusting the rotation speed of the rotating spindle; the adaptive torsion assembly has the function of applying elastic force and automatic resetting, and can overcome the elastic force of the torsion spring to rotate the deflection center axis when the rotating spindle rotates at high speed. After the rotating spindle stops rotating, the self-retractable pressure assembly will be reset to a slightly tilted state under the elastic force of the torsion spring of the adaptive torsion assembly.

[0010] As a further preferred embodiment of the present invention, the adaptive torsion assembly includes a deflection center shaft, a torsion spring and a deflection rod. The deflection center shaft is rotatably arranged in the circular hole at the bottom of the fork frame. End rings are symmetrically arranged at both ends of the deflection center shaft. The torsion spring is arranged between the end rings and the bottom fork frame. The deflection rod is fixedly connected to the deflection center shaft. Square sliding rod parts are symmetrically arranged at both ends of the deflection rod.

[0011] As a further preferred embodiment of the present invention, the self-retractable pressure assembly includes a grinding head and a telescopic spring, the grinding head consists of an arc portion and a sleeve portion, the sleeve portion is slidably engaged on the square slide rod portion, and the telescopic spring is arranged between the square slide rod portion and the sleeve portion.

[0012] The deflection rod is slightly inclined in the initial state, which can control the rotation direction of the deflection rod when the rotating spindle rotates. On the other hand, through the combination of the elastic force of the telescopic spring and the centrifugal force of the grinding head, the extension range of the grinding head and the pressure of the grinding head on the inner wall of the ball socket liner can be adjusted and controlled.

[0013] Furthermore, the ball and socket automatic clamping mechanism includes a ball and socket body, a transverse clamping assembly and a longitudinal pressure assembly. The transverse clamping assembly is evenly arranged in a ring on the main body bottom plate, the ball and socket body is arranged on the transverse clamping assembly, and the longitudinal pressure assembly is located above the transverse clamping assembly.

[0014] The ball socket liner is actually divided into multiple areas. The grinding head can grind different areas at different rotation speeds of the rotating spindle. The progress and rhythm of grinding can be controlled by controlling the rotation speed of the rotating spindle.

[0015] Preferably, the ball socket body is composed of a ball socket liner, a step portion and a round shaft portion, the adaptive torsion assembly and the self-retractable pressure assembly are located in the ball socket liner, the transverse clamping assembly includes a bottom slide groove, a transverse clamping block and an inclined slide groove, the bottom slide groove is fixed to the bottom plate of the main body, a bottom slide bar is provided at the bottom of the transverse clamping block, the transverse clamping block is slidably arranged in the bottom slide groove through the bottom slide bar, and a slope slide bar is also provided on the transverse clamping block, and the inclined slide groove is slidably arranged on the slope slide bar.

[0016] As a further preferred embodiment of the present invention, the longitudinal pressure assembly includes an annular pressure plate, a pressure plate return spring and a lifting guide strip, the inclined slide groove and the annular pressure plate are fixedly connected, the outer ring of the annular pressure plate is evenly distributed with square notches, the lifting guide strip is fixedly connected to the main body bottom plate, the annular pressure plate is slidably arranged on the lifting guide strip through the square notches, and the pressure plate return spring is arranged between the annular pressure plate and the main body bottom plate.

[0017] Through the linkage of the ball socket automatic clamping mechanism, the ball socket body can be automatically clamped and fixed by applying pressure during the process of the adaptive rotary grinding mechanism descending into the ball socket liner. In this process, the axial position of the ball socket body can also be automatically adjusted so that the ball socket body and the rotating spindle are automatically transformed into a coaxial arrangement state; and when the adaptive rotary grinding mechanism rises and resets, the lateral clamping block can also be automatically withdrawn to facilitate the removal of the ball socket body.

[0018] Furthermore, the symmetrical lifting mechanism includes a lifting drive component and a lifting execution component. The lifting drive component is symmetrically arranged on the main body bottom plate, and the lifting execution component is arranged on the lifting drive component.

[0019] Preferably, the lifting drive assembly includes a lifting motor, a lifting screw and a lifting inner sleeve, the lifting motor is arranged below the main body bottom plate, the lifting screw is rotatably arranged in the main body bottom plate, the output shaft of the inclined slide groove is connected to the lifting screw, the lifting inner sleeve is fixedly connected to the top of the main body bottom plate, and the lifting screw is located in the lifting inner sleeve.

[0020] As a further preferred embodiment of the present invention, the lifting actuator includes a lifting outer sleeve, a wing-type cross plate, a pressure spring and a lifting nut. The lifting outer sleeve is slidably arranged on the lifting inner sleeve, the beam body is fixedly connected to the top of the lifting outer sleeve, the wing-type cross plate is fixedly connected to the inner side of the lifting outer sleeve, the pressure spring is arranged between the wing-type cross plate and the annular pressure plate, the lifting nut is fixedly connected to the inner wall of the lifting outer sleeve, and threaded transmission is arranged between the lifting nut and the lifting screw.

[0021] The beneficial effects achieved by the present invention using the above structure are as follows: (1) The adaptive rotary grinding mechanism can actively control the horizontal angle of the self-retractable pressure component according to the different rotation speeds, so that the grinding range of the adaptive rotary grinding mechanism can cover the entire inner wall of the ball socket liner during the rotation process.

[0022] (2) The angle of the self-retractable pressure-applying assembly can be actively controlled by adjusting the rotation speed of the rotating spindle; the adaptive torsion assembly has the function of applying elastic force and automatically resetting, and can overcome the elastic force of the torsion spring to rotate the deflection center axis when the rotating spindle rotates at high speed. After the rotating spindle stops rotating, the self-retractable pressure-applying assembly will be reset to a slightly tilted state under the elastic force of the torsion spring of the adaptive torsion assembly.

[0023] (3) The deflection rod is slightly tilted in its initial state, which can control the rotation direction of the deflection rod when the rotating spindle rotates. On the other hand, through the combination of the elastic force of the telescopic spring and the centrifugal force of the grinding head, the extension range of the grinding head and the pressure of the grinding head on the inner wall of the ball socket liner can be adjusted and controlled.

[0024] (4) The ball socket liner is actually divided into multiple areas. The grinding head can grind different areas at different rotation speeds of the rotating spindle. The progress and rhythm of grinding can be controlled by controlling the rotation speed of the rotating spindle.

[0025] (5) Through the linkage of the ball socket automatic clamping mechanism, the ball socket body can be automatically clamped and fixed by applying pressure during the process of the adaptive rotary grinding mechanism descending into the ball socket liner. During this process, the axial position of the ball socket body can be automatically adjusted so that the ball socket body and the rotating spindle are automatically transformed into a coaxial arrangement state; and when the adaptive rotary grinding mechanism rises and resets, the lateral clamping block can be automatically withdrawn to facilitate the removal of the ball socket body. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A three-dimensional diagram of a grinding device for a spherical bushing for an automobile proposed by the present invention; Figure 2 A front view of a grinding device for a spherical bushing for an automobile proposed by the present invention; Figure 3 It is a left side view of a grinding device for a spherical bushing for automobiles proposed by the present invention; Figure 4 A top view of a grinding device for a spherical bushing for an automobile proposed by the present invention; Figure 5 for Figure 3 A cross-sectional view along the cutting line AA; Figure 6 for Figure 2A cross-sectional view along the cutting line BB; Figure 7 This is a schematic diagram of the exploded structure of a grinding device for a spherical bushing for automobiles proposed by the present invention; Figure 8 for Figure 5 A partial enlarged view of point Ⅰ in the middle; Fig. 9 for Figure 5 A partial enlarged view of the middle II; Fig.10 for Figure 6 A partial enlarged view of the middle part III; Fig.11 for Figure 6 A partial enlarged view of the middle IV; Fig.12 It is a schematic diagram of the force on the grinding head during the rotation process; Fig.13 Schematic diagram of the working area division of the ball and socket liner.

[0027] Among them, 1. Adaptive rotary grinding mechanism, 2. Ball and socket automatic clamping mechanism, 3. Symmetrical lifting mechanism, 4. Main body bottom plate, 5. Beam assembly, 6. Adaptive torsion assembly, 7. Self-retractable pressure assembly, 8. Beam body, 9. Rotating motor, 10. Deflection center axis, 11. Torsion spring, 12. Deflection rod, 13. Grinding head, 14. Telescopic spring, 15. Rotating spindle, 16. Bottom fork frame, 17. Round hole at the bottom of the fork frame, 18. End ring, 19. Square slide rod part, 20. Arc part, 21. Sleeve part, 22. Ball and socket body, 23. Transverse clamping group Parts, 24, longitudinal pressure assembly, 25, ball socket lining, 26, step portion, 27, circular shaft portion, 28, bottom slide, 29, horizontal clamping block, 30, inclined slide, 31, annular pressure plate, 32, pressure plate return spring, 33, lifting guide strip, 34, bottom slide, 35, ramp slide, 36, square notch, 37, lifting drive assembly, 38, lifting execution assembly, 39, lifting motor, 40, lifting screw, 41, lifting inner sleeve, 42, lifting outer sleeve, 43, wing cross plate, 44, pressure spring, 45, center circle hole, 46, lifting nut.

[0028] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only 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 ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0030] In the description of the present invention, it should be understood that terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “top”, “bottom”, “inside” and “outside” indicating directions or positional relationships are based on the directions or positional relationships 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 direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0031] like Figure 1 to Figure 11 As shown, the present invention proposes a grinding device for a spherical bushing for an automobile, comprising an adaptive rotary grinding mechanism 1, a ball and socket automatic clamping mechanism 2, a symmetrical lifting mechanism 3 and a main body bottom plate 4, wherein the adaptive rotary grinding mechanism 1 is arranged on the symmetrical lifting mechanism 3, the ball and socket automatic clamping mechanism 2 is arranged on the main body bottom plate 4, and the symmetrical lifting mechanism 3 is symmetrically arranged on the main body bottom plate 4.

[0032] The symmetrical lifting mechanism 3 includes a lifting drive assembly 37 and a lifting execution assembly 38 . The lifting drive assembly 37 is symmetrically arranged on the main body bottom plate 4 , and the lifting execution assembly 38 is arranged on the lifting drive assembly 37 .

[0033] The lifting drive assembly 37 includes a lifting motor 39, a lifting screw rod 40 and a lifting inner sleeve 41. The lifting motor 39 is arranged below the main body bottom plate 4. The lifting screw rod 40 is rotatably arranged in the main body bottom plate 4. The output shaft of the inclined slide groove 30 is connected to the lifting screw rod 40. The lifting inner sleeve 41 is fixedly connected to the top of the main body bottom plate 4. The lifting screw rod 40 is located in the lifting inner sleeve 41.

[0034] The lifting actuator assembly 38 includes a lifting outer sleeve 42, a wing-shaped cross plate 43, a pressure spring 44 and a lifting nut 46. The lifting outer sleeve 42 is slidably engaged on the lifting inner sleeve 41. The cross beam body 8 is fixedly connected to the top of the lifting outer sleeve 42. The wing-shaped cross plate 43 is fixedly connected to the inner side of the lifting outer sleeve 42. The pressure spring 44 is arranged between the wing-shaped cross plate 43 and the annular pressure plate 31. The lifting nut 46 is fixedly connected to the inner wall of the lifting outer sleeve 42. The lifting nut 46 and the lifting screw 40 are threadedly transmitted.

[0035] The ball and socket automatic clamping mechanism 2 includes a ball and socket body 22, a transverse clamping assembly 23 and a longitudinal pressure assembly 24. The transverse clamping assembly 23 is evenly distributed in a ring on the main body bottom plate 4, the ball and socket body 22 is arranged on the transverse clamping assembly 23, and the longitudinal pressure assembly 24 is located above the transverse clamping assembly 23.

[0036] The socket liner 25 is actually divided into a plurality of regions. The grinding head 13 can grind different regions at different rotation speeds of the rotating spindle 15. The progress and rhythm of the grinding can be controlled by controlling the rotation speed of the rotating spindle 15.

[0037] The socket body 22 is composed of a socket liner 25, a step portion 26 and a round shaft portion 27. The adaptive torsion component 6 and the self-retractable pressure component 7 are located in the socket liner 25. The transverse clamping component 23 includes a bottom slide 28, a transverse clamping block 29 and an inclined slide 30. The bottom slide 28 is fixed to the main body bottom plate 4. A bottom slide bar 34 is provided at the bottom of the transverse clamping block 29. The transverse clamping block 29 is slidably engaged in the bottom slide 28 through the bottom slide bar 34. A slope slide bar 35 is also provided on the transverse clamping block 29. The inclined slide 30 is slidably engaged on the slope slide bar 35.

[0038] The longitudinal pressure assembly 24 includes an annular pressure plate 31, a pressure plate return spring 32 and a lifting guide strip 33. The inclined slide groove 30 is fixedly connected to the annular pressure plate 31. The outer ring of the annular pressure plate 31 is evenly distributed with square notches 36. The lifting guide strip 33 is fixedly connected to the main body bottom plate 4. The annular pressure plate 31 is slidably arranged on the lifting guide strip 33 through the square notches 36. The pressure plate return spring 32 is arranged between the annular pressure plate 31 and the main body bottom plate 4.

[0039] Through the linkage of the ball socket automatic clamping mechanism 2, the ball socket body 22 can be automatically clamped and fixed by applying pressure during the process of the adaptive rotary grinding mechanism 1 descending into the ball socket liner 25. In this process, the axial position of the ball socket body 22 can also be automatically adjusted, so that the ball socket body 22 and the rotating spindle 15 are automatically transformed into a coaxial arrangement state; and when the adaptive rotary grinding mechanism 1 rises and resets, the lateral clamping block 29 can also be automatically withdrawn to facilitate the removal of the ball socket body 22.

[0040] The adaptive rotary grinding mechanism 1 includes a beam assembly 5, an adaptive torsion assembly 6 and a self-telescopic pressure assembly 7. The beam assembly 5 is arranged on the lifting execution assembly 38, the adaptive torsion assembly 6 is rotatably arranged at the bottom of the beam assembly 5, and the self-telescopic pressure assembly 7 is symmetrically arranged at both ends of the adaptive torsion assembly 6.

[0041] The adaptive rotary grinding mechanism 1 can actively control the horizontal angle of the self-retractable pressure-applying assembly 7 according to the different rotation speeds, so that the grinding range of the adaptive rotary grinding mechanism 1 can cover the entire inner wall of the socket liner 25 during the rotation process.

[0042] The crossbeam assembly 5 includes a crossbeam body 8 and a rotating motor 9. The crossbeam body 8 is arranged on the lifting and lowering actuator 38. The rotating motor 9 is arranged in the middle position of the crossbeam body 8. A rotating spindle 15 is arranged below the rotating motor 9. A bottom fork frame 16 is arranged at the end of the rotating spindle 15. A fork frame bottom circular hole 17 is arranged at the end of the bottom fork frame 16.

[0043] By adjusting the rotation speed of the rotating spindle 15, the angle of the self-telescopic pressure-applying assembly 7 can be actively controlled; the adaptive torsion assembly 6 has the function of applying elastic force and automatic resetting, and can overcome the elastic force of the torsion spring 11 to rotate the deflection center axis 10 when the rotating spindle 15 rotates at a high speed. After the rotating spindle 15 stops rotating, the self-telescopic pressure-applying assembly 7 will be reset to a slightly tilted state under the elastic force of the torsion spring 11 of the adaptive torsion assembly 6.

[0044] The adaptive torsion assembly 6 includes a deflection center shaft 10, a torsion spring 11 and a deflection rod 12. The deflection center shaft 10 is rotatably arranged in a circular hole 17 at the bottom of the fork frame. End circular rings 18 are symmetrically arranged at both ends of the deflection center shaft 10. The torsion spring 11 is arranged between the end circular ring 18 and the bottom fork frame 16. The deflection rod 12 is fixedly connected to the deflection center shaft 10. Square sliding rod portions 19 are symmetrically arranged at both ends of the deflection rod 12.

[0045] The self-retractable pressure-applying assembly 7 includes a grinding head 13 and a telescopic spring 14 . The grinding head 13 is composed of an arc portion 20 and a sleeve portion 21 . The sleeve portion 21 is slidably engaged on the square slide rod portion 19 . The telescopic spring 14 is disposed between the square slide rod portion 19 and the sleeve portion 21 .

[0046] The deflection rod 12 is slightly inclined in the initial state, and can control the rotation direction of the deflection rod 12 when the rotating spindle 15 rotates. On the other hand, through the combination of the elastic force of the telescopic spring 14 and the centrifugal force of the grinding head 13, the extension range of the grinding head 13 and the pressure of the grinding head 13 on the inner wall of the ball socket liner 25 can be adjusted and controlled.

[0047] like Fig.12As shown, since the rotating spindle 15 is in a vertical direction, the centrifugal force of the rotating spindle 15 is in the horizontal plane, that is, OA. OA can be divided into a force OB along the square slide bar portion 19 and a force OC perpendicular to the square slide bar portion 19. OC has no effect on the extension and retraction of the grinding head 13, while OB can overcome the elastic force of the telescopic spring 14 to make the grinding head 13 tend to extend. The greater the rotation speed of the rotating spindle 15, the closer the deflection rod 12 is to the horizontal, and the greater the value of OB.

[0048] like Fig.13 As shown, the ball socket liner 25 is divided into a plurality of areas, wherein the top opening area d does not have any entity and does not need to be polished; the area b corresponding to the bottom and the top opening is ground by the rotation of the lower grinding head 13. At this time, since the value of the centrifugal force component along the direction of the square slide rod 19 is small, and the upper grinding head 13 does not contact the inner wall of the ball socket liner 25, the elastic force of the lower telescopic spring 14 can be increased by actively lowering the crossbeam body 8, thereby increasing the extrusion force between the grinding head 13 and the ball socket liner 25; As the rotation speed of the rotating spindle 15 increases, the deflection rod 12 continues to tend to be horizontal. During this process, the deflection center axis 10 remains at the center of the ball socket liner 25. The lower grinding head 13 grinds area c during rotation, and the upper grinding head 13 grinds area a during rotation. Since the grinding pressure at each position is different, the grinding amount can be controlled by the residence time at the position.

[0049] When in use, the user first needs to place the ball socket body 22 in the middle of each group of transverse clamping blocks 29, and make the step portion 26 located above the transverse clamping blocks 29, and then start the lifting motor 39 to rotate the lifting screw 40, and through the threaded transmission of the lifting screw 40 and the lifting nut 46, the lifting outer sleeve 42 and the beam body 8 can be lowered; During the process of the lifting outer sleeve 42 descending, the pressure spring 44 will be squeezed by the wing-type horizontal plate 43, and the elastic force of the pressure plate return spring 32 will be overcome to make the annular pressure plate 31 descend along the lifting guide strip 33. When the annular pressure plate 31 descends, the inclined slide groove 30 and the bottom slide groove 28 can be used to limit the positions of the various groups of transverse clamping blocks 29, thereby achieving the clamping and fixing of the circular shaft portion 27. In addition, the axial position of the ball socket body 22 can be automatically adjusted during the clamping process, so that the ball socket body 22 is finally fixed at a position coaxial with the rotating main shaft 15. After the transverse clamping block 29 clamps the circular shaft portion 27 , the annular pressure plate 31 will not continue to descend. At this time, if the lifting outer sleeve 42 continues to descend, the squeezing force of the annular pressure plate 31 on the transverse clamping block 29 is maintained by the deformation of the pressure spring 44 .

[0050] After the adaptive torsion assembly 6 and the self-retractable pressure assembly 7 are inserted into the socket liner 25, the rotation motor 9 can be started. Since the deflection rod 12 has a small tilt angle in the initial state, as the rotation speed of the rotating main shaft 15 increases, the tilt angle of the deflection rod 12 will continue to approach the horizontal on this basis; Since the rotating main shaft 15 is in a vertical direction, the centrifugal force of the rotating main shaft 15 is on the horizontal plane, that is, Fig.12 OA in the figure can be divided into force OB along the square slide bar portion 19 and force OC perpendicular to the square slide bar portion 19. OC has no effect on the extension and retraction of the grinding head 13, while OB can overcome the elastic force of the telescopic spring 14 to make the grinding head 13 tend to extend. The greater the rotation speed of the rotating spindle 15, the closer the deflection rod 12 is to the horizontal, and the greater the value of OB.

[0051] Grinding with the grinding head 13 below Fig.13 In the b area, since the centrifugal force component along the square slide rod 19 is small, and the upper grinding head 13 does not contact the inner wall of the ball socket liner 25, the elastic force of the lower telescopic spring 14 can be increased by actively lowering the crossbeam body 8, thereby increasing the squeezing force between the grinding head 13 and the ball socket liner 25; As the rotation speed of the rotating spindle 15 increases, the deflection rod 12 continues to tend to be horizontal. During this process, the deflection center axis 10 remains at the center of the ball socket liner 25. The grinding head 13 below rotates to Fig.13 The c area in the middle is ground, and the upper grinding head 13 is used to grind the c area in the middle. Fig.13 The a area in the middle is ground; since the grinding pressure at each position is different, the grinding amount can be controlled by controlling the duration of the rotation speed.

[0052] After the grinding is completed, the rotating motor 9 is turned off, and the rotating spindle 15 stops rotating. The deflection rod 12 will be reset to the initial state under the elastic force of the torsion spring 11. At this time, the adaptive torsion component 6 and the self-retractable pressure component 7 can be separated from the ball socket liner 25 by raising the lifting outer sleeve 42.

[0053] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0054] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A grinding device for a spherical bushing for an automobile, characterized in that: The invention comprises an adaptive rotary grinding mechanism (1), a ball-and-socket automatic clamping mechanism (2), a symmetrical lifting mechanism (3) and a main body bottom plate (4), wherein the adaptive rotary grinding mechanism (1) is arranged on the symmetrical lifting mechanism (3), the ball-and-socket automatic clamping mechanism (2) is arranged on the main body bottom plate (4), and the symmetrical lifting mechanism (3) is symmetrically arranged on the main body bottom plate (4); The symmetrical lifting mechanism (3) comprises a lifting drive component (37) and a lifting execution component (38), wherein the lifting drive component (37) is symmetrically arranged on the main body bottom plate (4), and the lifting execution component (38) is arranged on the lifting drive component (37); The adaptive rotary grinding mechanism (1) comprises a crossbeam assembly (5), an adaptive torsion assembly (6) and a self-retractable pressure assembly (7), wherein the crossbeam assembly (5) is arranged on a lifting actuator assembly (38), the adaptive torsion assembly (6) is rotatably arranged at the bottom of the crossbeam assembly (5), and the self-retractable pressure assembly (7) is symmetrically arranged at both ends of the adaptive torsion assembly (6); The ball-and-socket automatic clamping mechanism (2) comprises a ball-and-socket body (22), a transverse clamping assembly (23) and a longitudinal pressure assembly (24); the transverse clamping assembly (23) is evenly arranged in a ring shape on a main body bottom plate (4); the ball-and-socket body (22) is arranged on the transverse clamping assembly (23); and the longitudinal pressure assembly (24) is located above the transverse clamping assembly (23).

2. The grinding device for a spherical bushing for an automobile according to claim 1, characterized in that: The crossbeam assembly (5) comprises a crossbeam body (8) and a rotating motor (9); the crossbeam body (8) is arranged on the lifting actuator assembly (38); the rotating motor (9) is arranged at the middle position of the crossbeam body (8); a rotating spindle (15) is arranged below the rotating motor (9); a bottom fork frame (16) is arranged at the end of the rotating spindle (15); and a fork frame bottom circular hole (17) is arranged at the end of the bottom fork frame (16).

3. The grinding device for a spherical bushing for an automobile according to claim 2, characterized in that: The adaptive torsion assembly (6) comprises a deflection center shaft (10), a torsion spring (11) and a deflection rod (12); the deflection center shaft (10) is rotatably arranged in a circular hole (17) at the bottom of a fork frame; end circular rings (18) are symmetrically arranged at both ends of the deflection center shaft (10); the torsion spring (11) is arranged between the end circular ring (18) and the bottom fork frame (16); the deflection rod (12) is fixedly connected to the deflection center shaft (10); and square sliding rod portions (19) are symmetrically arranged at both ends of the deflection rod (12).

4. The grinding device for a spherical bushing for an automobile according to claim 3, characterized in that: The self-retractable pressure-applying assembly (7) comprises a grinding head (13) and a telescopic spring (14); the grinding head (13) comprises an arc-shaped portion (20) and a sleeve portion (21); the sleeve portion (21) is slidably engaged on a square slide bar portion (19); and the telescopic spring (14) is disposed between the square slide bar portion (19) and the sleeve portion (21).

5. The grinding device for a spherical bushing for an automobile according to claim 4, characterized in that: The socket body (22) is composed of a socket liner (25), a step portion (26) and a round shaft portion (27); the adaptive torsion assembly (6) and the self-retractable pressure assembly (7) are located in the socket liner (25); the transverse clamping assembly (23) includes a bottom slide groove (28), a transverse clamping block (29) and an inclined slide groove (30); the bottom slide groove (28) is fixedly connected to the main body bottom plate (4); a bottom slide bar (34) is provided at the bottom of the transverse clamping block (29); the transverse clamping block (29) is slidably arranged in the bottom slide groove (28) through the bottom slide bar (34); the transverse clamping block (29) is also provided with a slope slide bar (35); the inclined slide groove (30) is slidably arranged on the slope slide bar (35).

6. The grinding device for a spherical bushing for an automobile according to claim 5, characterized in that: The longitudinal pressure component (24) comprises an annular pressure plate (31), a pressure plate return spring (32) and a lifting guide strip (33); the inclined slide groove (30) and the annular pressure plate (31) are fixedly connected; the outer ring of the annular pressure plate (31) is evenly distributed with square notches (36); the lifting guide strip (33) is fixedly connected to the main body bottom plate (4); the annular pressure plate (31) is slidably arranged on the lifting guide strip (33) through the square notches (36); and the pressure plate return spring (32) is arranged between the annular pressure plate (31) and the main body bottom plate (4).

7. The grinding device for a spherical bushing for an automobile according to claim 6, characterized in that: The lifting drive assembly (37) comprises a lifting motor (39), a lifting screw (40) and a lifting inner sleeve (41); the lifting motor (39) is arranged below the main body bottom plate (4); the lifting screw (40) is rotatably arranged in the main body bottom plate (4); the output shaft of the inclined slide groove (30) is connected to the lifting screw (40); the lifting inner sleeve (41) is fixedly connected to the top of the main body bottom plate (4); and the lifting screw (40) is located in the lifting inner sleeve (41).

8. The grinding device for a spherical bushing for an automobile according to claim 7, characterized in that: The lifting actuator assembly (38) includes a lifting outer sleeve (42), a wing-shaped cross plate (43), a pressure spring (44) and a lifting nut (46); the lifting outer sleeve (42) is slidably engaged on the lifting inner sleeve (41); the cross beam body (8) is fixedly connected to the top of the lifting outer sleeve (42); the wing-shaped cross plate (43) is fixedly connected to the inner side of the lifting outer sleeve (42); the pressure spring (44) is arranged between the wing-shaped cross plate (43) and the annular pressure plate (31); the lifting nut (46) is fixedly connected to the inner wall of the lifting outer sleeve (42); and a threaded transmission is formed between the lifting nut (46) and the lifting screw rod (40).

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