Multifunctional grinding head

Abstract

The multifunctional grinding head comprises a driving motor, a hollow cylinder is fixedly arranged at the bottom of the driving motor, the hollow cylinder is fixedly sleeved with a mounting plate, a fixing plate is fixedly arranged on the side wall of the hollow cylinder, and a rotating column is arranged at the bottom of the mounting plate; the end of an output shaft of the driving motor is provided with a transmission mechanism which is adaptive to different polishing mechanisms to transmit corresponding rotating speeds, the rotating column is movably sleeved with a rotating disc, and four rotating rods are rotationally arranged on the rotating disc. Through the arrangement of the transmission shaft, the transmission disc, the bevel gear ring, the connecting cylinder, a gear ring, a first gear, a bevel gear and a connecting column, the grinding mechanism is rapidly switched, through the arrangement of a limiting column and a limiting plate, according to the rotating speed difference between fine grinding and fine grinding, the rotating speed needed by the corresponding grinding mechanism is transmitted in a self-adaptive mode, manual adjustment is not needed, and the grinding efficiency is improved. The operation difficulty of workers is greatly reduced, and the operation is simple, convenient and fast.

Description

Technical Field

[0001] The invention relates to the technical field of grinding, in particular to a multifunctional grinding head. Background Art

[0002] Most existing grinders grind workpieces by installing grinding heads of different models and materials on the grinder, and then using a power unit to drive the grinding head to rotate at high speed to grind and repair the product surface. The grinder can also be installed on a machine tool or a robotic arm as needed, and different grinding head materials and angles can be replaced for different workpieces, thereby achieving different grinding, polishing and repair process requirements.

[0003] The invention patent with patent number CN119057696A discloses a grinding head and a grinding machine equipped with the grinding head. The grinding head includes a sleeve and a grinding head seat. The sleeve and the grinding head seat adjust the angle of the grinding head seat and the sleeve through inclined surface cooperation, and the sleeve and the grinding head seat can be locked together by a locking device. A flexible transmission component is arranged in the sleeve and the grinding head seat to transmit kinetic energy to the grinding head installed on the grinding head seat; further, a transition piece is introduced into the above structure to connect the grinding head seat and the sleeve, and the angle adjustment is also achieved by the transition piece cooperating with the grinding head seat and the sleeve inclined surface. After the above two structures of grinding heads are connected to a power unit, a grinder with an adjustable grinding head angle can be obtained.

[0004] The above-mentioned device adjusts the angle of the grinding head seat and the sleeve through the inclined surface of the sleeve and the grinding head seat, so as to achieve the effect of adjusting the angle of the grinding head. However, in order to ensure the accuracy of the workpiece during machine tool grinding in the prior art, deburring grinding, polishing and repair are required. Different process requirements require the use of different grinding heads. When batch grinding of workpieces, the need to frequently replace the grinding head greatly affects the grinding efficiency of the machine tool. In addition, the grinding process requirements are different from those of coarse polishing and fine polishing. Not only are the grinding heads different, but the rotation speed of the corresponding grinding head during fine polishing will also be higher than about one-fifth of the rotation speed of the coarse polishing grinding head. The staff not only need to replace the grinding head but also need to adjust the rotation speed of the grinder, and the operation is very cumbersome. Summary of the invention

[0005] The technical solution of the present invention aims at the technical problem that the existing technical solution is too single, and provides a solution that is significantly different from the existing technology. Specifically, the purpose of the present invention is to provide a multifunctional grinding head to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a multifunctional grinding head, comprising a driving motor, a hollow cylinder fixedly provided at the bottom of the driving motor, a mounting plate fixedly sleeved on the hollow cylinder, a fixing plate fixedly provided on the side wall of the hollow cylinder, a rotating column provided at the bottom of the mounting plate, a transmission mechanism adaptive to the corresponding rotation speed of different grinding mechanisms provided at the end of the output shaft of the driving motor, a turntable movably sleeved on the rotating column, four rotating rods rotatably provided on the turntable, a grinding mechanism fixedly provided at the bottom of the four rotating rods, a limiting mechanism for limiting clamping provided inside the four rotating rods, a limiting column fixedly provided on the top of the turntable, a limiting plate fixedly provided on the side wall of the rotating column, and a locking mechanism provided on the turntable.

[0007] Preferably, a folding groove is provided on the turntable.

[0008] Preferably, the transmission mechanism includes a transmission shaft, a transmission plate, a bevel gear ring, a connecting cylinder, a gear ring, a first gear, a bevel gear and a connecting column, the transmission shaft is fixedly arranged at the end of the output shaft of the driving motor, the transmission plate is fixedly arranged at the bottom of the transmission shaft, the bevel gear ring is fixedly sleeved on the side wall of the transmission plate, the connecting cylinder is fixedly arranged at the bottom of the bevel gear ring, the gear ring is limited and rotatably arranged at the bottom of the connecting cylinder, the connecting column is rotatably arranged at the bottom of the fixing plate, the bevel gear is fixedly arranged on the connecting column, and the first gear is fixedly arranged at the bottom of the connecting column.

[0009] Preferably, the inner side walls of the gear ring and the bevel gear ring are symmetrically provided with two wedge-shaped grooves.

[0010] Preferably, the four limiting mechanisms each include a first spring, two first wedge blocks, two second wedge blocks, a trapezoidal block, a connecting rod, a conical block, two limiting rods, a second spring, two T-blocks and two slide slots, each of the rotating rods is provided with a receiving slot, the two first wedge blocks are slidably arranged in the receiving slot, the two second wedge blocks are fixedly arranged at the bottom of the two first wedge blocks, the first spring is fixedly arranged at both ends between the two first wedge blocks, the trapezoidal block is slidably arranged at the bottom of the two second wedge blocks, the connecting rod is fixedly arranged at the bottom of the trapezoidal block, the conical block is fixedly arranged at the bottom of the connecting rod, the two slide slots are arranged on the conical surface of the conical block, the two T-blocks are respectively located in the two slide slots and slide, the two limiting rods are respectively fixedly arranged on the two T-blocks, and the second spring is fixedly arranged at the bottom of the conical block.

[0011] Preferably, the rotating disk is provided with four circular grooves for the rotating rod to rotate, and the insides of the four circular grooves are all provided with annular grooves for the limiting rod to slide.

[0012] Preferably, the locking mechanism includes a rotating groove, a limit frame and an L-shaped telescopic rod, the rotating groove is arranged on the turntable, the limit frame is slidably arranged in the rotating groove, the L-shaped telescopic rod is fixedly arranged on the top of the limit frame, and the side wall of the mounting plate is provided with a locking hole, and the locking hole and the L-shaped telescopic rod are adapted to each other.

[0013] Compared with the prior art, the present invention has the following beneficial effects: The invention realizes the rapid switching of the grinding mechanism through the arrangement of the transmission shaft, the transmission plate, the bevel gear ring, the connecting cylinder, the gear ring, the first gear, the bevel gear and the connecting column, and also realizes the rotation speed required by the grinding mechanism corresponding to the rotation speed difference of the fine grinding and the fine grinding through the arrangement of the limit column and the limit plate, and does not need manual adjustment, which greatly reduces the difficulty of operation for the staff, and the operation is simple, convenient and fast; The present invention realizes automatic limiting of the rotating rod and the grinding mechanism through the arrangement of the first spring, two first wedge blocks, two second wedge blocks, the trapezoidal block, the connecting rod, the conical block, the two limiting rods, the second spring, the two T-blocks and the two sliding grooves, and when the rotating rod is separated from the turntable and the rotating rod inserted into the hollow cylinder cannot be rotated manually, the staff can judge that the grinding mechanism has been replaced, the installation steps are simple, and it can be quickly judged whether the installation is tight, so as to avoid the grinding mechanism flying out during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic cross-sectional structure diagram of the limiting mechanism of the present invention; Figure 3 It is a partial cross-sectional structural schematic diagram of the limiting mechanism of the present invention; Figure 4 It is a schematic cross-sectional structural diagram of the transmission mechanism of the present invention; Figure 5 It is a schematic diagram of the locking mechanism structure of the present invention.

[0015] In the figure: 1. driving motor; 2. hollow cylinder; 3. fixing plate; 4. transmission mechanism; 41. transmission shaft; 42. transmission plate; 43. bevel gear ring; 44. connecting cylinder; 45. gear ring; 46. first gear; 47. bevel gear; 48. connecting column; 5. limiting mechanism; 51. first spring; 52. first wedge block; 53. second wedge block; 54. trapezoidal block; 55. connecting rod; 56. conical block; 57. limiting rod; 58. second spring; 59. annular groove; 510. T-block; 511. slide groove; 512. wedge groove; 6. locking mechanism; 61. rotating groove; 62. limiting frame; 63. L-shaped telescopic rod; 7. turntable; 8. mounting plate; 9. rotating column; 10. limiting plate; 11. limiting column; 12. grinding mechanism; 13. folding groove; 14. rotating rod. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] See also Figure 1-Figure 5An embodiment of the present invention is as follows: a multifunctional grinding head comprises a driving motor 1, a hollow cylinder 2 is fixedly provided at the bottom of the driving motor 1, a mounting plate 8 is fixedly sleeved on the hollow cylinder 2, a fixing plate 3 is fixedly provided on the side wall of the hollow cylinder 2, a rotating column 9 is provided at the bottom of the mounting plate 8, a transmission mechanism 4 which is adaptive to the corresponding rotation speed of different grinding mechanisms 12 is provided at the end of the output shaft of the driving motor 1, a turntable 7 is movably sleeved on the rotating column 9, four rotating rods 14 are rotatably provided on the turntable 7, a grinding mechanism 12 is fixedly provided at the bottom of the four rotating rods 14, a limiting mechanism 5 for limiting clamping is provided inside the four rotating rods 14, a limiting column 11 is fixedly provided on the top of the turntable 7, a limiting plate 10 is fixedly provided on the side wall of the rotating column 9, and a locking mechanism 6 is provided on the turntable 7. The workpiece is ground by the rotation of the output shaft of the driving motor 1, and the workpiece is grounded.

[0018] Specifically, a folding groove 13 is provided on the rotating disk 7. The folding groove 13 allows the entire device to be stored when not in use, thereby reducing floor space and facilitating storage.

[0019] Specifically, the transmission mechanism 4 includes a transmission shaft 41, a transmission disc 42, a bevel gear ring 43, a connecting cylinder 44, a gear ring 45, a first gear 46, a bevel gear 47 and a connecting column 48. The transmission shaft 41 is fixedly arranged at the end of the output shaft of the driving motor 1, the transmission disc 42 is fixedly arranged at the bottom of the transmission shaft 41, the bevel gear ring 43 is fixedly sleeved on the side wall of the transmission disc 42, the connecting cylinder 44 is fixedly arranged at the bottom of the bevel gear ring 43, the gear ring 45 is limited and rotatably arranged at the bottom of the connecting cylinder 44, the connecting column 48 is rotatably arranged at the bottom of the fixing plate 3, the bevel gear 47 is fixedly arranged on the connecting column 48, and the first gear 46 is fixedly arranged at the bottom of the connecting column 48. The output shaft of the driving motor 1 rotates to drive the transmission shaft 41, and the transmission shaft 41 rotates to drive the transmission plate 42 and the bevel gear ring 43 to rotate synchronously. The bevel gear ring 43 rotates to drive the bevel gear 47. The bevel gear 47 rotates to drive the connecting column 48 and the first gear 46 to rotate synchronously. The first gear 46 rotates to drive the gear ring 45 to rotate, so that the rotation speeds of the gear ring 45 and the bevel gear ring 43 are different. Rapid switching of the grinding mechanism 12 is achieved. The setting of the limit column 11 and the limit plate 10 is also used to adaptively transmit the required rotation speed of the grinding mechanism 12 corresponding to the speed difference between fine grinding and fine grinding. No manual adjustment is required, which greatly reduces the difficulty of operation for staff. The operation is simple, convenient and fast.

[0020] Specifically, two wedge-shaped grooves 512 are symmetrically arranged on the inner side walls of the gear ring 45 and the bevel gear ring 43 .

[0021] Specifically, the four limiting mechanisms 5 each include a first spring 51, two first wedge blocks 52, two second wedge blocks 53, a trapezoidal block 54, a connecting rod 55, a conical block 56, two limiting rods 57, a second spring 58, two T-shaped blocks 510 and two slide grooves 511. Each of the rotating rods 14 is provided with a receiving groove inside, the two first wedge blocks 52 are slidably arranged inside the receiving groove, the two second wedge blocks 53 are fixedly arranged at the bottom of the two first wedge blocks 52, and the first spring 51 is fixed at both ends. The first wedge blocks 52 are fixedly arranged between the two first wedge blocks 52, the trapezoidal block 54 is slidably arranged at the bottom of the two second wedge blocks 53, the connecting rod 55 is fixedly arranged at the bottom of the trapezoidal block 54, the conical block 56 is fixedly arranged at the bottom of the connecting rod 55, the two sliding grooves 511 are arranged on the conical surface of the conical block 56, the two T-blocks 510 are respectively located in the two sliding grooves 511 and slide, the two limit rods 57 are respectively fixedly arranged on the two T-blocks 510, and the second spring 58 is fixedly arranged at the bottom of the conical block 56. The first wedge block 52 is inserted into the wedge groove 512 to limit the rotating rod 14 and at the same time drive the second wedge block 53 to move synchronously in the direction of the first spring 51, the second wedge block 53 resists the T-block 510 to move downward, the trapezoidal block 54 moves downward and drives the connecting rod 55 and the conical block 56 to move downward synchronously, the conical block 56 moves downward and drives the T-block 510 to move along the slide groove 511, the T-block 510 moves and drives the limiting rod 57 to move synchronously in the direction of the conical block 56, so that the limiting rod 57 is separated from the limit of the rotating groove 61, so that the rotating rod 14 is separated from the limit of the rotating disk 7; the automatic limiting of the rotating rod 14 and the grinding mechanism 12 is realized, and when the rotating rod 14 is separated from the rotating disk 7 and the rotating rod 14 inserted into the hollow cylinder 2 cannot be rotated manually, the staff can judge that the grinding mechanism 12 has been replaced, the installation steps are simple, and it can be quickly judged whether the installation is tight, to avoid the situation that the grinding mechanism 12 flies out during work.

[0022] Specifically, the rotating disk 7 is provided with four circular grooves for the rotating rod 14 to rotate, and the inside of the four circular grooves is provided with an annular groove 59 for the limiting rod 57 to slide.

[0023] Specifically, the locking mechanism 6 includes a rotation groove 61, a limit frame 62 and an L-shaped telescopic rod 63. The rotation groove 61 is set on the turntable 7, the limit frame 62 is slidably set in the rotation groove 61, the L-shaped telescopic rod 63 is fixedly set on the top of the limit frame 62, and the side wall of the mounting plate 8 is provided with a locking hole, and the locking hole and the L-shaped telescopic rod 63 are mutually adapted. After the polishing mechanism 12 is replaced, the limit frame 62 is rotated until the L-shaped telescopic rod 63 and the locking hole are on the same vertical plane, and then after the turntable 7 is moved up to the specified position, the L-shaped telescopic rod 63 is stretched and inserted into the locking hole, thereby locking the position of the turntable 7.

[0024] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A multifunctional grinding head, comprising a driving motor (1), characterized in that: A hollow cylinder (2) is fixedly arranged at the bottom of the driving motor (1), a mounting plate (8) is fixedly sleeved on the hollow cylinder (2), a fixing plate (3) is fixedly arranged on the side wall of the hollow cylinder (2), a rotating column (9) is arranged at the bottom of the mounting plate (8), a transmission mechanism (4) which is adaptive to the corresponding rotation speed of different grinding mechanisms (12) is arranged at the end of the output shaft of the driving motor (1), a rotating disk (7) is movably sleeved on the rotating column (9), four rotating rods (14) are rotatably arranged on the rotating disk (7), a grinding mechanism (12) is fixedly arranged at the bottom of the four rotating rods (14), a limiting mechanism (5) for limiting clamping is arranged inside the four rotating rods (14), a limiting column (11) is fixedly arranged on the top of the rotating disk (7), a limiting plate (10) is fixedly arranged on the side wall of the rotating column (9), and a locking mechanism (6) is arranged on the rotating disk (7).

2. A multifunctional grinding head according to claim 1, characterized in that: The rotating disk (7) is provided with a folding groove (13).

3. A multifunctional grinding head according to claim 1, characterized in that: The transmission mechanism (4) comprises a transmission shaft (41), a transmission disc (42), a bevel gear ring (43), a connecting cylinder (44), a gear ring (45), a first gear (46), a bevel gear (47) and a connecting column (48); the transmission shaft (41) is fixedly arranged at the end of the output shaft of the driving motor (1); the transmission disc (42) is fixedly arranged at the bottom of the transmission shaft (41); the bevel gear ring (43) is fixedly sleeved on the side wall of the transmission disc (42); the connecting cylinder (44) is fixedly arranged at the bottom of the bevel gear ring (43); the gear ring (45) is limitedly rotatably arranged at the bottom of the connecting cylinder (44); the connecting column (48) is rotatably arranged at the bottom of the fixing plate (3); the bevel gear (47) is fixedly arranged on the connecting column (48); and the first gear (46) is fixedly arranged at the bottom of the connecting column (48).

4. A multifunctional grinding head according to claim 3, characterized in that: The inner side walls of the gear ring (45) and the bevel gear ring (43) are both symmetrically provided with two wedge-shaped grooves (512).

5. The multifunctional grinding head according to claim 1, characterized in that: The four limiting mechanisms (5) each comprise a first spring (51), two first wedge blocks (52), two second wedge blocks (53), a trapezoidal block (54), a connecting rod (55), a conical block (56), two limiting rods (57), a second spring (58), two T-shaped blocks (510) and two sliding grooves (511). Each of the rotating rods (14) is provided with a receiving groove inside, the two first wedge blocks (52) are slidably arranged inside the receiving groove, the two second wedge blocks (53) are fixedly arranged at the bottom of the two first wedge blocks (52), and both ends of the first spring (51) are fixed. The first wedge-shaped blocks (52) are arranged between the two first wedge-shaped blocks (52); the trapezoidal block (54) is slidably arranged at the bottom of the two second wedge-shaped blocks (53); the connecting rod (55) is fixedly arranged at the bottom of the trapezoidal block (54); the conical block (56) is fixedly arranged at the bottom of the connecting rod (55); the two sliding grooves (511) are arranged on the conical surface of the conical block (56); the two T-shaped blocks (510) are respectively located in the two sliding grooves (511) and slide; the two limiting rods (57) are respectively fixedly arranged on the two T-shaped blocks (510); and the second spring (58) is fixedly arranged at the bottom of the conical block (56).

6. A multifunctional grinding head according to claim 5, characterized in that: The rotating disk (7) is provided with four circular grooves for the rotating rod (14) to rotate, and the insides of the four circular grooves are each provided with an annular groove (59) for the limiting rod (57) to slide.

7. The multifunctional grinding head according to claim 1, characterized in that: The locking mechanism (6) comprises a rotation groove (61), a limit frame (62) and an L-shaped telescopic rod (63); the rotation groove (61) is arranged on the turntable (7); the limit frame (62) is slidably arranged in the rotation groove (61); the L-shaped telescopic rod (63) is fixedly arranged on the top of the limit frame (62); and a locking hole is arranged on the side wall of the mounting plate (8); the locking hole and the L-shaped telescopic rod (63) are mutually adapted.

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