CN114309825B - Gear shaping machine with adjustable cutter position - Google Patents
Gear shaping machine with adjustable cutter position Download PDFInfo
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- CN114309825B CN114309825B CN202210079311.6A CN202210079311A CN114309825B CN 114309825 B CN114309825 B CN 114309825B CN 202210079311 A CN202210079311 A CN 202210079311A CN 114309825 B CN114309825 B CN 114309825B
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- 238000010862 gear shaping Methods 0.000 title claims abstract description 19
- 238000003780 insertion Methods 0.000 claims description 7
- 230000037431 insertion Effects 0.000 claims description 7
- 230000002146 bilateral effect Effects 0.000 claims description 3
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The invention discloses a gear shaping machine with a cutter position adjusting function.A lifting threaded hole is formed in the bottom surface of a swing rod; the bottom surface of the swing rod is pivoted with a lifting gear; a driving threaded hole is formed in the center of the lifting gear; the upper part of the ball pull rod is screwed in the lifting threaded hole and the driving threaded hole; the end surfaces of the pair of cutter position adjusting seats, which are close to each other, are respectively formed with a semi-cylindrical groove-shaped upper slot with an upper opening and a lower opening; a lifting driving motor is fixed on the bottom surface of the cutter position adjusting seat; a lifting driving gear is fixed at the lower end of an output shaft of the lifting driving motor; a vertical connecting rod is vertically and telescopically arranged on the bottom surface of the cutter position adjusting seat; a lower limiting seat is formed at the bottom of the vertical connecting rod; the lower limiting grooves in the shape of a semi-cylindrical groove with an upper opening and a lower opening are respectively formed on the end surfaces, close to each other, of the pair of lower limiting seats; the vertical connecting rod is provided with scale marks in the vertical direction.
Description
Technical Field
The invention relates to the technical field of gear shaping machines, in particular to a gear shaping machine with a cutter position adjusting function.
Background
At present, the up-and-down adjustment mode of a gear shaping cutter of a gear shaping machine at home and abroad mostly adopts manual adjustment, and the mode has the following defects: 1. the operation of ascending a height is needed, so that the working risk of operators is increased; 2. the inaccurate adjustment precision can be completed only by repeated adjustment and repeated measurement, so that the adjustment efficiency is low.
Disclosure of Invention
The invention aims to provide a gear shaper with a cutter position adjusting function, aiming at the technical problems that the mode of manually adjusting the upper and lower positions of a gear shaper cutter is low in efficiency and inaccurate in precision.
The technical scheme for solving the technical problems is as follows: a gear shaping machine with a cutter position adjusting function comprises a swing rod, a ball pull rod, a cutter shaft and a pair of cutter position adjusting seats which are arranged in a bilateral symmetry mode; the bottom ball head of the ball pull rod is connected to the top of the cutter shaft, and the diameter of the ball pull rod is smaller than that of the cutter shaft; the swing rod is fixed on the rack of the gear shaping machine; a lifting threaded hole is formed in the bottom surface of the swing rod; the bottom surface of the swing rod is pivoted with a lifting gear; a driving threaded hole is formed in the center of the lifting gear; the upper part of the ball pull rod is screwed in the lifting threaded hole and the driving threaded hole; the pair of knife position adjusting seats respectively move left and right and are arranged on the left side and the right side of the oscillating bar; the end surfaces of the pair of cutter position adjusting seats, which are close to each other, are respectively formed with a semi-cylindrical groove-shaped upper slot with an upper opening and a lower opening; the diameter of the upper slot is the same as that of the swing rod; a lifting driving motor is fixed on the bottom surface of the cutter position adjusting seat; a lifting driving gear is fixed at the lower end of an output shaft of the lifting driving motor; the lifting driving gear is matched with the lifting gear; a vertical connecting rod is vertically and telescopically arranged on the bottom surface of the cutter position adjusting seat; a lower limiting seat is formed at the bottom of the vertical connecting rod; the lower limiting grooves in the shape of a semi-cylindrical groove with an upper opening and a lower opening are respectively formed on the end surfaces, close to each other, of the pair of lower limiting seats; the vertical connecting rod is provided with scale marks in the vertical direction; the diameter of the lower limit groove is the same as that of the ball pull rod.
Preferably, the outer side end of the knife position adjusting seat is formed with a square groove-shaped vertical moving groove; a square column-shaped upper vertical moving seat is vertically movably arranged in the vertical moving groove; the upper part of the vertical connecting rod is sleeved with a lower tension spring; the upper end of the lower tension spring is fixed on the upper end surface of the upper vertical moving seat, and the lower end of the lower tension spring is fixed on the lower side wall of the vertical moving groove.
Preferably, a pair of vertical moving grooves are formed on the upper ends of the side walls close to each other with a Z-shaped upper driving groove; the upper part of the upper driving groove is communicated with the upper slot of the corresponding side, and the lower part of the upper driving groove is communicated with the vertical moving groove of the corresponding side; spring placing grooves are respectively formed at the upper ends of the side walls of the pair of upper driving grooves, which are far away from each other; the lower part of the upper driving groove moves left and right to form a lower limiting inserted column, and the upper part moves left and right to form an upper limiting inserted column; the end surfaces, close to each other, of the lower limiting inserted column and the upper limiting inserted column are respectively formed with a driving rack; the centers of the front and rear side walls of the upper driving groove are pivoted with a central gear; the central gear is respectively meshed with the driving racks on the upper side and the lower side; a pressure spring is arranged in the spring placing groove; the outer side end of the pressure spring abuts against the outer side wall of the spring containing groove, and the inner side end of the pressure spring abuts against the outer side end face of the upper limiting insertion column; the end faces of the pair of upper vertical moving seats, which are close to each other, are respectively formed with upper limiting slots matched with the lower limiting inserting columns.
Preferably, a pair of left and right driving electric cylinders distributed left and right are fixed on the rack of the gear shaping machine; the knife position adjusting seat is fixed on the piston rod of the left and right driving electric cylinders at the corresponding side.
Preferably, a pair of connecting insertion columns distributed in the front-back direction are formed on the right end surface of the lower limiting seat on the left side; a pair of connecting slots matched with the connecting inserting columns are formed on the left end surface of the lower limiting seat on the right side.
Preferably, an upper avoidance groove is formed on the upper side wall of the lifting threaded hole; the upper part of the swing rod is formed with an upper moving groove with left and right openings; a square rotary limiting column vertically penetrates through the upper side wall of the upper avoidance groove; a square groove-shaped vertical limiting slot matched with the rotary limiting column is formed on the upper end surface of the ball pull rod; the upper end of the rotary limiting column is positioned in the upper moving groove and is formed with a cylindrical spring fixing plate; an isosceles trapezoid-shaped driving guide block with a wide upper part and a narrow lower part is formed on the upper end surface of the spring fixing plate; an upper tension spring is sleeved on the upper part of the rotary limiting column; the upper end of the upper tension spring is fixed on the upper end surface of the spring fixing plate, and the lower end of the upper tension spring is fixed on the lower side wall of the upper moving groove; a cylindrical upper connecting column is formed on the upper end surface of the cutter position adjusting seat; the upper end of the upper connecting column is formed with a main driving block in a right-angled trapezoid shape; the inclined plane of the main driving block is matched with the inclined plane of the corresponding side of the driving guide block; when a pair of main driving blocks are closest, the driving guide block is at the uppermost end.
The invention has the beneficial effects that: simple structure makes things convenient for the vertical position control of pinion cutter, and it is accurate to adjust the size.
Drawings
Fig. 1 is a schematic structural view of a cross section of the present invention.
In the figure, 10, a swing rod; 100. an upper moving groove; 101. an upper avoidance groove; 102. a lifting threaded hole; 11. rotating the limiting column; 12. driving the guide block; 13. a spring fixing plate; 14. an upper tension spring; 15. a lifting gear; 20. a ball pull rod; 200. a vertical limit slot; 30. a cutter shaft; 40. the left and right driving electric cylinders; 50. a tool position adjusting seat; 500. an upper slot; 501. a vertical moving groove; 502. an upper drive slot; 503. a spring placing groove; 51. an upper connecting column; 52. a main drive block; 53. an upper limiting inserting column; 54. a pressure spring; 55. a sun gear; 56. inserting a column at a lower limit; 57. a vertical connecting rod; 571. an upper vertical moving seat; 5710. an upper limiting slot; 572. a lower limit seat; 5720. a lower limiting groove; 58. a lower tension spring; 59. a lifting drive motor; 591. the lifting drive gear.
Detailed Description
As shown in fig. 1, a gear shaping machine for adjusting a cutter position comprises a swing rod 10, a ball pull rod 20, a cutter shaft 30 and a pair of cutter position adjusting seats 50 which are arranged in a bilateral symmetry manner; the bottom ball head of the ball pull rod 20 is connected to the top of the cutter shaft 30, and the diameter of the ball pull rod 20 is smaller than that of the cutter shaft 30; the swing rod 10 is fixed on a rack of the gear shaping machine; a lifting threaded hole 102 is formed in the bottom surface of the swing rod 10; the bottom surface of the swing rod 10 is pivoted with a lifting gear 15; a driving threaded hole is formed in the center of the lifting gear 15; the upper part of the ball pull rod 20 is screwed in the lifting threaded hole 102 and the driving threaded hole; the pair of knife position adjusting seats 50 are respectively arranged on the left side and the right side of the swing rod 10 in a left-right moving manner; the mutually close end surfaces of the pair of cutter position adjusting seats 50 are respectively formed with a semi-cylindrical groove-shaped upper slot 500 with an upper opening and a lower opening; the diameter of the upper slot 500 is the same as that of the swing rod 10; a lifting driving motor 59 is fixed on the bottom surface of the cutter position adjusting seat 50; a lifting driving gear 591 is fixed at the lower end of an output shaft of the lifting driving motor 59; the lifting driving gear 591 is matched with the lifting gear 15; a vertical connecting rod 57 is vertically and telescopically arranged on the bottom surface of the cutter position adjusting seat 50; a lower limit seat 572 is formed at the bottom of the vertical connecting rod 57; lower limit grooves 5720 in the form of a semi-cylindrical groove having an upper opening and a lower opening are formed in the end surfaces of the pair of lower limit seats 572 which are adjacent to each other; the vertical connecting rod 57 is provided with scale marks in the vertical direction; the diameter of the lower restriction groove 5720 is the same as the diameter of the ball pull rod 20.
As shown in fig. 1, a square groove-shaped vertical moving groove 501 is formed at the outer side end of the knife position adjusting seat 50; an upper vertical moving seat 571 in a square column shape is vertically and movably arranged in the vertical moving groove 501; the upper part of the vertical connecting rod 57 is sleeved with a lower tension spring 58; the upper end of the lower tension spring 58 is fixed on the lower end surface of the upper vertical moving seat 571, and the lower end is fixed on the lower side wall of the vertical moving groove 501.
As shown in fig. 1, upper driving grooves 502 in a zigzag shape are respectively formed at upper ends of side walls of a pair of vertical moving grooves 501 adjacent to each other; the upper part of the upper driving groove 502 is communicated with the upper slot 500 of the corresponding side, and the lower part is communicated with the vertical moving groove 501 of the corresponding side; spring placing grooves 503 are respectively formed at the upper ends of the side walls of the pair of upper driving grooves 502 which are far away from each other; a lower limiting inserting column 56 is arranged on the lower part of the upper driving groove 502 in a left-right moving mode, and an upper limiting inserting column 53 is arranged on the upper part in a left-right moving mode; the end surfaces of the lower limiting inserting column 56 and the upper limiting inserting column 53, which are close to each other, are respectively formed with a driving rack; the centers of the front and rear side walls of the upper driving groove 502 are pivoted with a central gear 55; the sun gear 55 is engaged with the upper and lower driving racks, respectively; a pressure spring 54 is arranged in the spring placing groove 503; the outer end of the pressure spring 54 abuts against the outer side wall of the spring accommodating groove 503, and the inner end abuts against the outer end face of the upper limiting inserting column 53; the upper limit slots 5710, which are engaged with the lower limit posts 56, are formed on the end surfaces of the pair of upper vertical moving seats 571, which are close to each other.
As shown in fig. 1, a pair of left and right driving electric cylinders 40 which are distributed left and right are fixed on the rack of the gear shaper; the knife position adjusting seat 50 is fixed on the piston rod of the left and right driving electric cylinder 40 on the corresponding side.
As shown in fig. 1, a pair of connecting posts distributed in the front-rear direction are formed on the right end surface of the left lower stopper 572; a pair of connecting slots matched with the connecting plug posts are formed on the left end surface of the lower limiting seat 572 on the right side.
As shown in fig. 1, an upper avoidance groove 101 is formed on an upper side wall of the lifting threaded hole 102; an upper moving groove 100 with left and right openings is formed at the upper part of the swing rod 10; a square-shaped rotation limiting column 11 vertically penetrates through the upper side wall of the upper avoidance groove 101; a square groove-shaped vertical limiting slot 200 matched with the rotary limiting column 11 is formed on the upper end surface of the ball pull rod 20; the upper end of the rotation limiting column 11 is positioned in the upper moving groove 100 and is formed with a cylindrical spring fixing plate 13; an isosceles trapezoid-shaped driving guide block 12 with a wide upper part and a narrow lower part is formed on the upper end surface of the spring fixing plate 13; the upper part of the rotation limiting column 11 is sleeved with an upper tension spring 14; the upper end of the upper tension spring 14 is fixed on the lower end face of the spring fixing plate 13, and the lower end is fixed on the lower side wall of the upper moving groove 100; a cylindrical upper connecting column 51 is formed on the upper end surface of the cutter position adjusting seat 50; a right trapezoid-shaped main driving block 52 is formed at the upper end of the upper connecting column 51; the inclined surface of the main driving block 52 is matched with the inclined surface of the corresponding side of the driving guide block 12; when the pair of main drive blocks 52 are closest together, the drive guide block 12 is uppermost.
The working principle of the gear shaping machine with the cutter position adjusted;
in an initial state, the pair of tool position adjusting seats 50 are farthest away from each other, the driving guide block 12 is positioned at the lowest end and is inserted into the vertical limiting slot 200, so that the ball pull rod 20 cannot rotate or lift, the upper vertical moving seat 571 is positioned at the highest end, the lower limiting insertion column 56 is inserted into the upper limiting slot 5710, and the inner side end of the upper limiting insertion column 53 is positioned in the upper slot 500;
when the up-down position of the slotting cutter needs to be adjusted, the pair of cutter position adjusting seats 50 are close to each other, in the process, the pair of main driving blocks 52 are in contact with the driving guide block 12, so that the driving guide block 12 moves up vertically, namely the rotating limiting column 11 moves up vertically, the pair of upper limiting insertion columns 53 contract and drive the pair of lower limiting insertion columns 56 to contract through rack and gear transmission, so that when the pair of cutter position adjusting seats 50 abut against each other, the rotating limiting column 11 is separated from the ball pull rod 20, the pair of lifting driving gears 591 are respectively meshed with the lifting gear 15, the pair of lower limiting seats 572 move down to abut against the upper end face of the cutter shaft 30, so that the pair of lifting driving gears 591 rotate to drive the lifting gear 15 to rotate so that the ball pull rod 20 moves up and down, the up-down position of the cutter shaft 30 can be adjusted, and the vertically adjusted size can be conveniently known through the scale lines of the vertical connecting rods 57;
the vertical position of the pinion cutter can be conveniently adjusted, and the size is accurately adjusted.
The above description is only a preferred embodiment of the present invention, and for those skilled in the art, there are variations on the embodiment and the application scope according to the idea of the present invention, and the content of the present description should not be construed as a limitation to the present invention.
Claims (4)
1. The utility model provides a gear shaping machine that sword position was adjusted which characterized in that: comprises a swing rod (10), a ball pull rod (20), a cutter shaft (30) and a pair of cutter position adjusting seats (50) which are arranged in bilateral symmetry; the bottom ball head of the ball pull rod (20) is connected to the top of the cutter shaft (30), and the diameter of the ball pull rod (20) is smaller than that of the cutter shaft (30); the swing rod (10) is fixed on the rack of the gear shaping machine; a lifting threaded hole (102) is formed in the bottom surface of the swing rod (10); the bottom surface of the swing rod (10) is pivoted with a lifting gear (15); a driving threaded hole is formed in the center of the lifting gear (15); the upper part of the ball pull rod (20) is screwed in the lifting threaded hole (102) and the driving threaded hole; a pair of knife position adjusting seats (50) are respectively arranged on the left side and the right side of the swing rod (10) in a left-right moving way; the mutually close end surfaces of the pair of knife position adjusting seats (50) are respectively formed with a semi-cylindrical groove-shaped upper slot (500) with an upper opening and a lower opening; the diameter of the upper slot (500) is the same as that of the swing rod (10); a lifting driving motor (59) is fixed on the bottom surface of the cutter position adjusting seat (50); a lifting driving gear (591) is fixed at the lower end of an output shaft of the lifting driving motor (59); the lifting driving gear (591) is matched with the lifting gear (15); a vertical connecting rod (57) is vertically and telescopically arranged on the bottom surface of the cutter position adjusting seat (50); a lower limiting seat (572) is formed at the bottom of the vertical connecting rod (57); lower limiting grooves (5720) in the shape of a semi-cylindrical groove with an upper opening and a lower opening are respectively formed on the end surfaces of the pair of lower limiting seats (572) which are close to each other; the vertical connecting rod (57) is provided with scale marks in the vertical direction; the diameter of the lower limit groove (5720) is the same as that of the ball pull rod (20);
a square groove-shaped vertical moving groove (501) is formed at the outer side end of the cutter position adjusting seat (50); an upper vertical moving seat (571) in a square column shape is vertically arranged in the vertical moving groove (501) in a moving way; the upper part of the vertical connecting rod (57) is sleeved with a lower tension spring (58); the upper end of the lower tension spring (58) is fixed on the upper end surface and the lower end of the lower end surface of the upper vertical moving seat (571) and is fixed on the lower side wall of the vertical moving groove (501);
the upper ends of the side walls of the pair of vertical moving grooves (501) which are close to each other are respectively provided with a Z-shaped upper driving groove (502); the upper part of the upper driving groove (502) is communicated with the upper slot (500) on the corresponding side, and the lower part of the upper driving groove is communicated with the vertical moving groove (501) on the corresponding side; spring placing grooves (503) are respectively formed at the upper ends of the side walls of the pair of upper driving grooves (502) which are far away from each other; a lower limiting inserting column (56) is arranged on the lower part of the upper driving groove (502) in a left-right moving mode, and an upper limiting inserting column (53) is arranged on the upper part in a left-right moving mode; the end surfaces of the lower limiting inserting column (56) and the upper limiting inserting column (53) which are close to each other are respectively formed with a driving rack; the centers of the front and rear side walls of the upper driving groove (502) are pivoted with a central gear (55); the central gear (55) is respectively meshed with the driving racks on the upper side and the lower side; a pressure spring (54) is arranged in the spring arranging groove (503); the outer end of the pressure spring (54) abuts against the outer side wall of the spring placing groove (503), and the inner end abuts against the outer end face of the upper limiting insertion column (53); the end surfaces of the pair of upper vertical moving seats (571) close to each other are respectively formed with upper limiting slots (5710) matched with the lower limiting inserting columns (56).
2. The gear shaping machine with the adjustable cutter position according to claim 1, wherein: a pair of left and right driving electric cylinders (40) which are distributed left and right are fixed on the rack of the gear shaping machine; the cutter position adjusting seat (50) is fixed on the piston rod of the left and right driving electric cylinders (40) on the corresponding side.
3. The gear shaping machine with the cutter position adjusted according to claim 1, wherein: a pair of connecting inserting columns distributed in the front and back are formed on the right end surface of the lower limiting seat (572) on the left side; a pair of connecting slots matched with the connecting inserting columns are formed on the left end surface of the lower limiting seat (572) on the right side.
4. The gear shaping machine with the adjustable cutter position according to claim 1, wherein: an upper avoidance groove (101) is formed on the upper side wall of the lifting threaded hole (102); an upper moving groove (100) with left and right openings is formed at the upper part of the swing rod (10); a square rotary limiting column (11) vertically penetrates through the upper side wall of the upper avoidance groove (101); a square groove-shaped vertical limiting slot (200) matched with the rotary limiting column (11) is formed on the upper end surface of the ball pull rod (20); the upper end of the rotation limiting column (11) is positioned in the upper moving groove (100) and is formed with a cylindrical spring fixing plate (13); an isosceles trapezoid-shaped driving guide block (12) with a wide upper part and a narrow lower part is formed on the upper end surface of the spring fixing plate (13); an upper tension spring (14) is sleeved on the upper part of the rotation limiting column (11); the upper end of the upper tension spring (14) is fixed on the upper end surface of the lower end surface of the spring fixing plate (13), and the lower end of the upper tension spring is fixed on the lower side wall of the upper moving groove (100); a cylindrical upper connecting column (51) is formed on the upper end surface of the cutter position adjusting seat (50); a main driving block (52) in a right trapezoid shape is formed at the upper end of the upper connecting column (51); the inclined surface of the main driving block (52) is matched with the inclined surface of the corresponding side of the driving guide block (12); when a pair of main driving blocks (52) are closest, the driving guide block (12) is at the uppermost end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210079311.6A CN114309825B (en) | 2022-01-24 | 2022-01-24 | Gear shaping machine with adjustable cutter position |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210079311.6A CN114309825B (en) | 2022-01-24 | 2022-01-24 | Gear shaping machine with adjustable cutter position |
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| Publication Number | Publication Date |
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| CN114309825A CN114309825A (en) | 2022-04-12 |
| CN114309825B true CN114309825B (en) | 2022-12-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210079311.6A Active CN114309825B (en) | 2022-01-24 | 2022-01-24 | Gear shaping machine with adjustable cutter position |
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| DE19901338C1 (en) * | 1999-01-15 | 2000-03-02 | Reishauer Ag | Procedure for profiling grinding worm for continuous roller grinding process has grinding worm profiled corresponding to requirements of workpiece, working profile measured exactly, then measured values converted into control data |
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| CN101579758A (en) * | 2009-06-19 | 2009-11-18 | 天津市精诚机床制造有限公司 | Installation angle adjusting device of milling head body of numerical control cylindrical gear milling machine |
| CN207930088U (en) * | 2018-02-06 | 2018-10-02 | 营口机床厂有限公司 | Digital control gear shaper bed |
| CN209157311U (en) * | 2018-10-17 | 2019-07-26 | 天津市鼎鑫晟达精密机床制造股份有限公司 | A kind of follow-on cutter frame mechanism of numerical control gear shaper |
| CN112008550A (en) * | 2020-09-04 | 2020-12-01 | 台州浙盛轴承科技有限公司 | Grinding device in bearing production |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1137795C (en) * | 2000-12-01 | 2004-02-11 | 天津华盛昌齿轮有限公司 | Method for milling teeth of tooth-variable worm |
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2022
- 2022-01-24 CN CN202210079311.6A patent/CN114309825B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19901338C1 (en) * | 1999-01-15 | 2000-03-02 | Reishauer Ag | Procedure for profiling grinding worm for continuous roller grinding process has grinding worm profiled corresponding to requirements of workpiece, working profile measured exactly, then measured values converted into control data |
| CN201231359Y (en) * | 2008-08-05 | 2009-05-06 | 宜昌长机科技有限责任公司 | Tool-position up and down position automatic adjustment device of gear planer |
| CN101579758A (en) * | 2009-06-19 | 2009-11-18 | 天津市精诚机床制造有限公司 | Installation angle adjusting device of milling head body of numerical control cylindrical gear milling machine |
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| CN112008550A (en) * | 2020-09-04 | 2020-12-01 | 台州浙盛轴承科技有限公司 | Grinding device in bearing production |
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| CN114309825A (en) | 2022-04-12 |
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Denomination of invention: A Gear Shaper with Tool Position Adjustment Granted publication date: 20221209 Pledgee: Zhejiang Wenling Rural Commercial Bank Co.,Ltd. Pledgor: WENLING MINGHUA GEAR Co.,Ltd. Registration number: Y2024330000640 |