CN218254567U - Eccentric device for grinding center hole - Google Patents
Eccentric device for grinding center hole Download PDFInfo
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- CN218254567U CN218254567U CN202222241940.2U CN202222241940U CN218254567U CN 218254567 U CN218254567 U CN 218254567U CN 202222241940 U CN202222241940 U CN 202222241940U CN 218254567 U CN218254567 U CN 218254567U
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Abstract
The utility model relates to the technical field of machining, in particular to a grinding center hole eccentric device, which comprises a workbench and a second clamping mechanism, wherein the second clamping mechanism is arranged at the top of the workbench and used for clamping a shaft body of a slender shaft; two moving mechanism, two moving mechanism is located the both ends position department of clamping mechanism two respectively, two be provided with the reducing gear box on the moving mechanism respectively and grind the mechanism, the reducing gear box can carry out rectilinear movement with grinding the mechanism homoenergetic through moving mechanism, the utility model discloses a be provided with clamping mechanism one, effort is applyed to slender axles one end to plectane two, and plectane two to rolling disc remove, and plectane two drive plectane synchronous motion through the connecting axle, and effort is applyed to the one end of plectane two pairs of concave plates, and the one end other end of concave plate rotates to plectane two center pins, until pressing from both sides tight slender axles, so can know that clamping mode is simple and swift, can reduce the time of processing, improves machining efficiency.
Description
Technical Field
The utility model relates to the technical field of machining, specifically a coping centre bore eccentric device.
Background
The design reference of the excircle surface of the shaft part is an axial lead, in order to ensure the processing precision, the principle of reference superposition and reference unification is followed, the positioning reference on the workpiece is selected as the axial lead of the shaft part, a central hole is generally used as the positioning reference for grinding each excircle, the workpiece is positioned and clamped through the central hole, the contact quality of the central hole and the workpiece has direct influence on the processing precision of the workpiece, and therefore, the central hole is frequently required to be repaired and ground in the grinding process.
This device mainly is applicable to the slender axles processing of gear, among the prior art, install the location clamping work with the slender axles adaptation on the workstation, fix the slender axles, then use thimble and the one end contact of slender axles and fix (the thimble can rotate), fixed mode generally is that the cover is established on the thimble and is fixed with the ring, then a plurality of screw holes have been seted up to the lateral wall on the ring, then install the bolt through the screw thread in the screw hole, then make bolt contact slender axles, fix, the mode of fixing is comparatively loaded down with trivial details and consuming time like this.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a coping centre bore eccentric device to solve the problem that proposes among the above-mentioned background art.
The technical scheme of the utility model is that: the utility model provides a coping centre bore eccentric device, includes the workstation, still includes:
the second clamping mechanism is arranged at the top of the workbench and used for clamping a shaft body of the slender shaft;
the two moving mechanisms are respectively positioned at two ends of the second clamping mechanism, a reduction gearbox and a grinding mechanism are respectively arranged on the two moving mechanisms, the reduction gearbox and the grinding mechanism can linearly move through the moving mechanisms, a servo motor is fixedly arranged on the reduction gearbox, and an output shaft of the servo motor is coaxially fixed with an input shaft of the reduction gearbox;
the first clamping mechanism is arranged on an output shaft of the reduction gearbox, the first clamping mechanism is used for clamping one end of the slender shaft, and the servo motor drives the first clamping mechanism to rotate through the reduction gearbox.
Preferably, the moving mechanism comprises a fixing frame, a first threaded rod, a moving plate and two guide rods, the fixing frame is fixed on the workbench, two ends of each guide rod are respectively fixed on inner walls of two ends of the fixing frame, outer walls of two ends of the moving plate are both provided with rotating holes, the first threaded rod is rotatably installed in the rotating holes through bearings, the moving plate is slidably sleeved on the guide rods, the outer wall of the moving plate is provided with threaded holes, the first threaded rod is installed in the threaded holes through threads, and the reduction gearbox is fixed on one of the moving plates.
Preferably, the grinding mechanism comprises a motor, a grinding thimble and a screw thread lifter, the screw thread lifter is fixed on the other moving plate, the motor is fixed on the lifting end of the screw thread lifter, and an output shaft of the motor is coaxially fixed with the grinding thimble.
Preferably, the first clamping mechanism comprises a rotating disc, a positioning column, a spring, a sleeve, a first circular plate, a connecting shaft, a second circular plate, a plurality of concave frames and a plurality of concave plates, the rotating disc is coaxially fixed with an output shaft of the reduction gearbox, the plurality of concave frames are fixed on the outer wall of the circular surface of the rotating disc, the plurality of concave frames are annularly distributed around the central shaft of the rotating disc in an equidistant mode, the rotating disc is coaxially fixed with the positioning column, the sleeve is sleeved on the positioning column in a sliding mode, the first circular plate is coaxially fixed with the sleeve, the first circular plate and the second circular plate are coaxially fixed with the two ends of the connecting shaft respectively, the concave plates are rotatably installed on the inner wall of one side of each concave frame, one ends of the concave plates are located between the first circular plate and the second circular plate, the spring is sleeved on the sleeve, and the two ends of the spring are in contact with the rotating disc and the first circular plate respectively.
Preferably, the second clamping mechanism comprises a fixed ring plate, a plurality of moving rods and a plurality of internal thread cylinders, the fixed ring plate is fixed on the workbench, the central shaft of the fixed ring plate is horizontally arranged, a plurality of guide holes are formed in the outer circumferential wall of the fixed ring plate and are distributed equidistantly, the moving rods are located in the guide holes, a plurality of guide strips are arranged on the outer circumferential wall of the moving rods, a plurality of guide grooves are formed in the guide holes, the guide strips are slidably mounted in the guide grooves, the internal thread cylinders are rotatably mounted on the outer circumferential wall of the fixed ring plate, the internal thread cylinders are aligned with the guide holes in a one-to-one mode, one end of the moving rod is provided with a thread, the internal thread cylinders are in threaded connection with the moving rods, a rotating groove is formed in one end, facing the center of the fixed ring plate, of the moving rod, a pulley is rotatably mounted on the inner wall of the rotating groove, the central shaft of the pulley is parallel to the central shaft of the fixed ring plate, and a first bevel gear coaxially arranged on the outer wall of the internal thread cylinders.
Preferably, the second clamping mechanism further comprises a second bevel gear, a first fixing plate and a second fixing plate, the second bevel gear is rotatably mounted on the first fixing ring plate, the second bevel gear and the first fixing ring plate are coaxially arranged, the first bevel gear is meshed with the second bevel gear, the first fixing plate is fixed on the second bevel gear, a first rotating block is rotatably mounted on the outer wall of the first fixing plate, the second fixing plate is fixed on the second fixing ring plate, a second rotating block is rotatably mounted on the outer wall of the second fixing plate, a rotating hole is formed in the outer wall of the second rotating block, a second threaded rod is rotatably mounted in the rotating hole, a threaded hole is formed in the outer wall of the first rotating block, and a thread through which the second threaded rod passes is mounted in the threaded hole.
The utility model discloses an improve and provide a coping centre bore eccentric device here, compare with prior art, have following improvement and advantage:
one is as follows: the utility model discloses a be provided with clamping mechanism one, effort is exerted to plectane two to the slender axles one end, plectane two to the rolling disc moves, plectane two drives plectane one synchronous motion through the connecting axle, and effort is exerted to the one end of plectane two pairs of concave plates, and the one end other end of concave plate rotates to plectane two center pin, until pressing from both sides tight slender axles, so can know that the clamping mode is simple and swift, can reduce the time of processing, improve machining efficiency;
the second step is as follows: the utility model discloses a clamping mechanism two, when two rotations of threaded rod, threaded rod two pass through screw drive and drive turning block one and remove, and turning block one drives bevel gear two through the fixed plate and rotates, and bevel gear two drives bevel gear one and rotates, and bevel gear one drives rather than the internal thread section of thick bamboo of fixing and rotates, and the internal thread section of thick bamboo drives the carriage release lever through screw drive's form and removes, can know from this that clamping mechanism two press from both sides the mode of pressing from both sides tight slender axles simply and swiftly.
Drawings
The invention is further explained below with reference to the drawings and examples:
fig. 1 is a schematic perspective view of the present invention;
fig. 2 is a schematic front view of the present invention;
FIG. 3 is a schematic side sectional view of the clamping mechanism of the present invention;
fig. 4 is a schematic diagram of a two-dimensional structure of the clamping mechanism of the present invention.
Description of reference numerals:
1. a work table; 2. a moving mechanism; 21. a guide rod; 22. a fixed mount; 23. a first threaded rod; 3. a servo motor; 4. a reduction gearbox; 5. a first clamping mechanism; 51. rotating the disc; 52. a positioning column; 53. a spring; 54. a circular plate I; 55. a connecting shaft; 56. a second circular plate; 57. a concave plate; 6. a second clamping mechanism; 61. a stationary ring plate; 62. a travel bar; 63. a pulley; 64. a guide strip; 65. a first bevel gear; 66. an internal threaded barrel; 67. a second bevel gear; 68. a second threaded rod; 69. a first fixing plate; 610. rotating the first block; 611. rotating the second block; 612. a second fixing plate; 7. and a grinding mechanism.
Detailed Description
The present invention will be described in detail below, and it is apparent that the technical solutions in the embodiments of the present invention are described clearly and completely. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model discloses an improve and provide a coping centre bore eccentric device here, the technical scheme of the utility model is:
as shown in fig. 1-4, an eccentric device for grinding a center hole comprises a worktable 1 placed on the ground, and further comprises:
the second clamping mechanism 6 is arranged at the top of the workbench 1, and the second clamping mechanism 6 is used for clamping the shaft body of the slender shaft;
the two moving mechanisms 2 are respectively positioned at two ends of the second clamping mechanism 6, a reduction gearbox 4 and a grinding mechanism 7 are respectively arranged on the two moving mechanisms 2, the reduction gearbox 4 and the grinding mechanism 7 can both move linearly through the moving mechanisms 2, a servo motor 3 is fixedly arranged on the reduction gearbox 4, and an output shaft of the servo motor 3 is coaxially fixed with an input shaft of the reduction gearbox 4;
the clamping mechanism I5 is arranged on an output shaft of the reduction gearbox 4, the clamping mechanism I5 is used for clamping one end of the slender shaft, the servo motor 3 drives the clamping mechanism I5 to rotate through the reduction gearbox 4, and therefore the servo motor 3 drives the clamping mechanism I5 to rotate through the reduction gearbox 4, and the clamping mechanism I5 drives the slender shaft to rotate.
According to the structure or the mechanism, the slender shaft (the two ends of which are provided with the central holes) is clamped by the clamping mechanism II 6, then the clamping mechanism I5 moves through the moving mechanism 2 connected with the clamping mechanism I5, so that the clamping mechanism I5 clamps one end of the slender shaft, the slender shaft is stabilized, then the servo motor 3 drives the clamping mechanism I5 to rotate through the reduction gearbox 4, the clamping mechanism I5 drives the slender shaft to rotate, finally the grinding mechanism 7 moves through the moving mechanism 2 connected with the grinding mechanism I, and eccentric grinding is carried out on the central hole at the other end of the slender shaft.
As shown in fig. 1, the moving mechanism 2 includes a fixing frame 22, a first threaded rod 23, a moving plate and two guide rods 21, the fixing frame 22 is fixed on the workbench 1, two ends of the guide rods 21 are fixed on inner walls of two ends of the fixing frame 22 respectively, outer walls of two ends of the moving plate are provided with rotating holes, the first threaded rod 23 is rotatably installed in the rotating holes through bearings, the moving plate is slidably sleeved on the guide rods 21, outer walls of the moving plate are provided with threaded holes, the first threaded rod 23 is installed in the threaded holes through threads, the reduction gearbox 4 is fixed on one of the moving plate, as can be known from the connection relationship, the moving plate can linearly move along the two guide rods 21, the first threaded rod 23 rotates, and the first threaded rod 23 drives the moving plate through a thread transmission mode.
Further, the grinding mechanism 7 includes a motor, a coping thimble, and a screw elevator, which is a conventional one and mainly used for height adjustment, and whose internal structure is not described in detail herein, the screw elevator is fixed to another moving plate, the motor is fixed to a lifting end of the screw elevator, and an output shaft of the motor is coaxially fixed to the coping thimble.
As shown in fig. 3, the first clamping mechanism 5 includes a rotating disk 51, a positioning column 52, a spring 53, a sleeve, a first circular plate 54, a connecting shaft 55, a second circular plate 56, a plurality of concave frames and a plurality of concave plates 57, the rotating disk 51 is coaxially fixed with the output shaft of the reduction gearbox 4, the plurality of concave frames are fixed on the outer wall of the circular surface of the rotating disk 51, the plurality of concave frames are annularly distributed at equal intervals around the central shaft of the rotating disk 51, the rotating disk 51 is coaxially fixed with the positioning column 52, the sleeve is slidably sleeved on the positioning column 52, the first circular plate 54 is coaxially fixed with the sleeve, the first circular plate 54 and the second circular plate 56 are respectively coaxially fixed with two ends of the connecting shaft 55, the concave plates 57 are rotatably mounted on the inner wall of one side of the concave frames, one end of the concave plate 57 is located between the first circular plate 54 and the second circular plate 56, the spring 53 is sleeved on the sleeve, two ends of the spring 53 are respectively contacted with the rotating disk 51 and the first circular plate 54, the connection relationship indicates that the first elongated shaft applies an acting force to the second circular plate 56, the second circular plate 56 moves synchronously through the connecting shaft 55, the circular plate 56 applies an acting force to the other end of the circular plate 56, and the circular plate 57, the clamping of the circular plate 57 can be quickly, and the efficiency can be reduced, and the efficiency of the elongated shaft can be easily achieved, and the elongated shaft can be achieved by a simple method for processing of the elongated shaft.
As shown in fig. 3, the second clamping mechanism 6 includes a fixed ring plate 61, a plurality of moving rods 62 and a plurality of internal thread cylinders 66, the fixed ring plate 61 is fixed on the worktable 1, a central axis of the fixed ring plate 61 is horizontally disposed, a plurality of guide holes are formed in an outer circumferential wall of the fixed ring plate 61, the moving rods 62 are located in the guide holes, a plurality of guide bars 64 are disposed on an outer circumferential wall of the moving rods 62, a plurality of guide grooves are formed in the guide holes, the guide bars 64 are slidably mounted in the guide grooves, so that the moving rods 62 can only linearly move along the guide holes, the moving rods 62 cannot rotate, the plurality of internal thread cylinders 66 are rotatably mounted on the outer circumferential wall of the fixed ring plate 61, the plurality of internal thread cylinders 66 are aligned with the guide holes one by one, one end of the moving rods 62 is threaded, the internal thread cylinders 66 are connected with the moving rods 62 through threads, one end of the moving rod 62 facing the center of the fixed ring plate 61 is provided with a rotating groove, the inner wall of the rotating groove is rotatably provided with a pulley 63, the central axis of the pulley 63 is parallel to the central axis of the fixed ring plate 61, the outer wall of the internal thread cylinder 66 is fixedly provided with a bevel gear I65 coaxially arranged with the internal thread cylinder, the clamping mechanism II 6 further comprises a bevel gear II 67, a fixing plate I69 and a fixing plate II 612, the bevel gear II 67 is rotatably arranged on the fixed ring plate 61, the bevel gear II 67 is coaxially arranged with the fixed ring plate 61, the bevel gear I65 is meshed with the bevel gear II 67, the fixing plate I69 is fixed on the bevel gear II 67, the outer wall of the fixing plate I69 is rotatably provided with a rotating block I610, the fixing plate II 612 is fixed on the fixed ring plate 61, the outer wall of the fixing plate II 612 is rotatably provided with a rotating block II 611, the outer wall of the rotating block II 611 is provided with a rotating hole, a threaded rod II 68 is rotatably arranged in the rotating hole, the rotating block I610 is provided with a threaded hole, the screw that the second threaded rod 68 passes through is installed in the screwed hole, can know by above-mentioned relation of connection, when second threaded rod 68 rotates, second threaded rod 68 drives turning block 610 through screw drive and removes, turning block 610 drives second bevel gear 67 through fixed plate 69 and rotates, second bevel gear 67 drives first bevel gear 65 and rotates, first bevel gear 65 drives the internal thread section of thick bamboo 66 rather than fixing and rotates, internal thread section of thick bamboo 66 drives movable rod 62 through screw drive's form and removes, can know from this, the mode that clamping mechanism two 6 presss from both sides tight slender axles is simple and swift.
In conclusion: the slender shaft is clamped by the second clamping mechanism 6, then the first clamping mechanism 5 moves through the moving mechanism 2 connected with the first clamping mechanism, so that the first clamping mechanism 5 clamps one end of the slender shaft, then the servo motor 3 drives the first clamping mechanism 5 to rotate through the reduction gearbox 4, the first clamping mechanism 5 drives the slender shaft to rotate, the slender shaft is stabilized, finally the grinding mechanism 7 moves through the moving mechanism 2 connected with the grinding mechanism, and the center hole at the other end of the slender shaft is subjected to eccentric grinding.
Claims (6)
1. The utility model provides a coping centre bore eccentric device, includes workstation (1), its characterized in that still includes:
the second clamping mechanism (6) is installed at the top of the workbench (1), and the second clamping mechanism (6) is used for clamping the shaft body of the slender shaft;
the two moving mechanisms (2) are respectively positioned at two ends of the second clamping mechanism (6), a reduction gearbox (4) and a grinding mechanism (7) are respectively arranged on the two moving mechanisms (2), the reduction gearbox (4) and the grinding mechanism (7) can linearly move through the moving mechanisms (2), a servo motor (3) is fixedly mounted on the reduction gearbox (4), and an output shaft of the servo motor (3) is coaxially fixed with an input shaft of the reduction gearbox (4);
the clamping mechanism I (5) is arranged on an output shaft of the reduction gearbox (4), the clamping mechanism I (5) is used for clamping one end of the slender shaft, and the servo motor (3) drives the clamping mechanism I (5) to rotate through the reduction gearbox (4).
2. The eccentric device for grinding the central hole according to claim 1, wherein: the moving mechanism (2) comprises a fixing frame (22), a first threaded rod (23), a moving plate and two guide rods (21), the fixing frame (22) is fixed on the workbench (1), the two ends of the guide rods (21) are fixed on the inner walls of the two ends of the fixing frame (22) respectively, rotating holes are formed in the outer walls of the two ends of the moving plate, the first threaded rod (23) is installed in the rotating holes through bearing rotation, the moving plate is sleeved on the guide rods (21) in a sliding mode, threaded holes are formed in the outer wall of the moving plate, the first threaded rod (23) is installed in the threaded holes through threads, and the reduction gearbox (4) is fixed on one of the moving plates.
3. The eccentric device for grinding the central hole according to claim 1, wherein: the grinding mechanism (7) comprises a motor, a grinding thimble and a thread lifter, the thread lifter is fixed on the other moving plate, the motor is fixed on the lifting end of the thread lifter, and an output shaft of the motor is coaxially fixed with the grinding thimble.
4. The eccentric device for grinding the central hole according to claim 1, wherein: the clamping mechanism I (5) comprises a rotating disc (51), a positioning column (52), a spring (53), a sleeve, a first circular plate (54), a connecting shaft (55), a second circular plate (56), a plurality of concave frames and a plurality of concave plates (57), wherein the rotating disc (51) is coaxially fixed with an output shaft of the reduction gearbox (4), the concave frames are fixed on the outer wall of the circular surface of the rotating disc (51), the concave frames are annularly distributed around the central shaft of the rotating disc (51) at equal intervals, the rotating disc (51) is coaxially fixed with the positioning column (52), the sleeve is slidably sleeved on the positioning column (52), the first circular plate (54) is coaxially fixed with the sleeve, the first circular plate (54) and the second circular plate (56) are coaxially fixed with the two ends of the connecting shaft (55) respectively, the concave plates (57) are rotatably installed on the inner wall of one side of the concave frames, one end of each concave plate (57) is located between the first circular plate (54) and the second circular plate (56), the spring (53) is sleeved on the sleeve, and the two ends of the spring (53) are respectively in contact with the first circular plate (51) and the first circular plate (54).
5. The eccentric device for grinding the central hole according to claim 1, wherein: the second clamping mechanism (6) comprises a fixed ring plate (61), a plurality of moving rods (62) and a plurality of internal thread cylinders (66), the fixed ring plate (61) is fixed on the workbench (1), the central shaft of the fixed ring plate (61) is horizontally arranged, a plurality of guide holes distributed at equal intervals are formed in the outer wall of the circumference of the fixed ring plate (61), the moving rods (62) are located in the guide holes, a plurality of guide strips (64) are arranged on the outer wall of the circumference of the moving rods (62), a plurality of guide grooves are formed in the guide holes, the guide strips (64) are slidably mounted in the guide grooves, the internal thread cylinders (66) are rotatably mounted on the outer wall of the circumference of the fixed ring plate (61), the internal thread cylinders (66) are aligned with the guide holes in a one-to-one mode, threads are formed in one end of the moving rods (62), the internal thread cylinders (66) are in threaded connection with the moving rods (62), a rotating groove is formed in one end, facing the center of the fixed ring plate (61), a pulley (63) is rotatably mounted on the inner wall of the rotating groove, and a central shaft of the fixed ring plate (61) is parallel to the central shaft (66), and a bevel gear (65) is arranged on the outer wall of the fixed ring plate.
6. The eccentric device for grinding the central hole according to claim 5, wherein: the second clamping mechanism (6) further comprises a second bevel gear (67), a first fixing plate (69) and a second fixing plate (612), the second bevel gear (67) is rotatably installed on the second fixing ring plate (61), the second bevel gear (67) and the first fixing ring plate (61) are coaxially arranged, the first bevel gear (65) is meshed with the second bevel gear (67), the first fixing plate (69) is fixed on the second bevel gear (67), a first rotating block (610) is rotatably installed on the outer wall of the first fixing plate (69), the second fixing plate (612) is fixed on the second fixing ring plate (61), a second rotating block (611) is rotatably installed on the outer wall of the second fixing plate (612), a rotating hole is formed in the outer wall of the second rotating block (611), a second threaded rod (68) is rotatably installed in the rotating hole, a threaded hole is formed in the outer wall of the first rotating block (610), and a threaded hole is formed in the outer wall of the second rotating block (68).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222241940.2U CN218254567U (en) | 2022-08-24 | 2022-08-24 | Eccentric device for grinding center hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222241940.2U CN218254567U (en) | 2022-08-24 | 2022-08-24 | Eccentric device for grinding center hole |
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| Publication Number | Publication Date |
|---|---|
| CN218254567U true CN218254567U (en) | 2023-01-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222241940.2U Active CN218254567U (en) | 2022-08-24 | 2022-08-24 | Eccentric device for grinding center hole |
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| CN (1) | CN218254567U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115847208A (en) * | 2023-03-01 | 2023-03-28 | 新乡日升数控轴承装备股份有限公司 | Positioning method for grinding center hole of shaft part with irregular outer surface |
| CN116160306A (en) * | 2023-04-18 | 2023-05-26 | 吴江市亨达机械配件有限责任公司 | A inner wall finish grinding device for industrial robot aluminium system accessory |
-
2022
- 2022-08-24 CN CN202222241940.2U patent/CN218254567U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115847208A (en) * | 2023-03-01 | 2023-03-28 | 新乡日升数控轴承装备股份有限公司 | Positioning method for grinding center hole of shaft part with irregular outer surface |
| CN116160306A (en) * | 2023-04-18 | 2023-05-26 | 吴江市亨达机械配件有限责任公司 | A inner wall finish grinding device for industrial robot aluminium system accessory |
| CN116160306B (en) * | 2023-04-18 | 2023-08-29 | 吴江市亨达机械配件有限责任公司 | A inner wall finish grinding device for industrial robot aluminium system accessory |
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