CN2756382Y - Low speed rotary device for machining cylindrical cam groove - Google Patents
Low speed rotary device for machining cylindrical cam groove Download PDFInfo
- Publication number
- CN2756382Y CN2756382Y CN 200420109578 CN200420109578U CN2756382Y CN 2756382 Y CN2756382 Y CN 2756382Y CN 200420109578 CN200420109578 CN 200420109578 CN 200420109578 U CN200420109578 U CN 200420109578U CN 2756382 Y CN2756382 Y CN 2756382Y
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- CN
- China
- Prior art keywords
- tailstock
- transmission case
- cylindrical cam
- worm
- gear
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- Expired - Lifetime
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Abstract
The utility model relates to a machinery clamp in a machine tool accessory, particularly a low-speed rotary device for machining cylindrical cam grooves, which is mainly composed of a driving box, a three-jaw clamping chuck, a motor, a tail frame and a bottom plate, wherein a pair of worm wheel and worm and a driving gear are arranged in the driving box, the head of a main shaft is provided with the three-jaw clamping chuck, a contracting brake mechanism is arranged on the worm wheel and the driving box and the tail frame are both fixed on the bottom plate. The utility model has the advantages of simple structure, convenient use, high work efficiency, good quality of machined parts, stability and reliability and low cost, can be matched with the ordinary numerical-control milling machine or the ordinary numerical-control turning machine to machine a cylindrical cam groove on a workpiece, and can be refitted through the existing devices for enterprises.
Description
Technical field
The utility model relates to the frock clamp in a kind of machine tool accessories, particularly a kind of low-speed revolving device of processing column cam path, and it can be used with the general NC lathe, workpiece is carried out cylindrical cam groove add.
Background technology
So-called cylindrical cam groove processing promptly is to carry out curved groove processing on cylindrical work piece.At present, cylindrical cam groove processing is a big difficult point of machining.Because when the Milling Process cylindrical cam groove, require milling cutter to rotate at a high speed and feeding cutting time, workpiece is length feed and low speed rotation on lathe.The workpiece low speed rotation is the problem that must solve in the cylindrical cam groove machining process.At present, generally speaking cylindrical cam groove be processed with two kinds of ways: the one, on plain-milling machine, process, the 2nd, on CNC milling machine, process.If on plain-milling machine the processing column cam path, at first, must make workpiece realize low speed rotation.Its method generally is at the power shaft end of the leading screw output of milling machine table and dividing head lodge wheel, makes the milling machine dividing head realize low speed rotation.Generally speaking, there are several sections curves will take change gear several times.Moreover, in process, need the cautious operation of veteran master craftsman and just can finish.Curved groove after machined is good also need manually be repaiied file just can reach requirement.Obviously, processing column cam path on general plain-milling machine, not only efficient is low, and workpiece quality also can not get guaranteeing.If on CNC milling machine, process, then must on the high-grade CNC milling machine of three four interlocks, just can carry out, general general NC lathe then can't be processed.Because have only the high-grade CNC milling machine of three four interlocks just to have the function of low speed rotation, the general NC milling machine then can't be realized the function of low speed rotation.Prices are rather stiff for high-grade, digitally controlled machine tools, for general medium-sized and small enterprises, also do not have such equipment.How utilizing enterprise's existing equipment, as general NC milling machine or centre numerically controlled lathe, carry out the processing of cylindrical cam groove, is the medium-sized and small enterprises urgent problems.
Summary of the invention
The purpose of this utility model is that a kind of low-speed revolving device of processing column cam path is provided.Can be directly and general NC milling machine or centre numerically controlled lathe be used, workpiece is carried out the Milling Process of cylindrical cam groove.
Technical solution of the present utility model is, be provided with transmission case, scroll chuck, motor, tailstock and base plate, be provided with main shaft, power transmission shaft and worm and gear and travelling gear in the transmission case, worm gear, worm screw are located at respectively on main shaft and the power transmission shaft, and travelling gear is located at respectively on power transmission shaft and the motor shaft; Spindle nose is equipped with scroll chuck and places outside the transmission case casing; Motor is fixed in the outside of transmission case casing, and transmission case and tailstock all are fixed on the base plate.
Worm gear is provided with band-type brake mechanism.
Described band-type brake mechanism is made of brake ribbon, fixed block, adjusting screw(rod), nuts and bolt, and band-type brake mechanism is fixed on the casing.
Be provided with top in the tailstock, be provided with intermediate pads between tailstock and the base plate, the bottom surface of tailstock is provided with groove, and the upper side of intermediate pads is provided with boss, groove on its tailstock matches with boss on the intermediate pads, is made it to fix by bolt between tailstock and the intermediate pads.
The utility model has the advantages that, simple in structure, installation, easy to use, cost is low.Can directly utilize the existing equipment of enterprise to reequip, make the general NC lathe can realize the Milling Process of cylindrical cam groove, and high efficiency, the part quality of being processed is good and reliable and stable.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the A-A cutaway view of Fig. 1;
Fig. 3 is the B-B cutaway view of Fig. 1.
Number in the figure: 1-three-phase hybrid stepping motor, 2-gear, 3-gear, 4-worm screw, 5-worm gear, the 6-main shaft, the 7-scroll chuck, the 8-workpiece, the 9-tailstock, 10-is top, the 11-fixed block, 12-adjusting screw(rod), 13-nut, 14-brake ribbon, 15-set bolt, the 16-fixed block, 17-taper roll bearing, 18-power transmission shaft, 19-taper roll bearing, the 20-transmission case, 21-intermediate pads, 22-base plate, 23-hex bolts, the 24-plain washer, 25-hexagon socket cap head screw, 26-hex bolts, 27-plain washer.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail:
The utility model embodiment mainly is made up of transmission case 20, scroll chuck 7, three-phase hybrid stepping motor 1, tailstock 9 and base plate 22.Be provided with main shaft 6, power transmission shaft 18 and a pair of worm and gear 5,4 and a pair of travelling gear 2,3 in the transmission case 20, worm gear 5, worm screw 4 are located at respectively on main shaft 6 and the power transmission shaft 18, travelling gear 2,3 be located at respectively that 1 in motor is gone up and power transmission shaft 18 on.The head of main shaft 6 is equipped with scroll chuck 7 and places outside transmission case 20 casings, and motor 1 is fixed in the outside of transmission case 20 casings.
The gearratio of travelling gear 2,3 is 1: 2, and the gearratio of worm and gear 5,4 is 1: 10.Main shaft 6 and power transmission shaft 18 are supported on the casing of transmission case 20 by bearing 17 and bearing 19 respectively.Its main shaft 6 bears axial force and radial load because cylindrical cam groove adds man-hour, and power transmission shaft 18 bears axial force and radial load equally in transmission, so main shaft bearing 17 and transmission shaft bearing 19 are a pair of taper roll bearing respectively.
Shake because of the drive gap of worm and gear 5,4 when preventing main shaft 6 low speed rotation, on worm gear 5, added adjustable preload device one a band-type brake mechanism.Described band-type brake mechanism is made of brake ribbon 14, fixed block 11,16, set bolt 15 and adjusting screw(rod) 12, nut 13, brake ribbon 14 band-type brakes are on worm gear 5, and the two ends of brake ribbon 14 are linked to each other by two fixed blocks 11,16 respectively and are fixed in by bolt, screw rod on the casing of transmission case 20.Wherein an end is fixed by set bolt 15 with deciding piece 11, but 16 of opposite side fixed blocks be strained and fixed by adjusting screw(rod) 12, nut 13, but the pretightning force of brake ribbon 14 then can be regulated by adjusting screw(rod) 12, nut 13.But, make worm gear 5 bear certain load all the time, thereby the shake when preventing main shaft 6 low speed rotation by adjusting adjusting screw(rod) 12.
Be provided with top 10 in the tailstock 9, be provided with intermediate pads 21 between tailstock 9 and the base plate 22, the bottom surface of tailstock 9 is provided with groove, the upper side of intermediate pads 21 is provided with boss, groove on its tailstock 9 matches with boss on the intermediate pads 21, make it to fix by screw 23 and pad 24 between tailstock 9 and the intermediate pads 21, be fixed on the base plate 22 by screw 25 again.Use for ease of whole Unit Installation, transmission case 20 is fixed on the base plate 22 by hex bolts 26, plain washer 27 and hexagon socket cap head screw 25 with intermediate pads 21, becomes as a whole.
Operation principle of the present utility model is: (rotating speed is 10r/min to motor 1, the setting able to programme of its rotating speed is adjusted in 10r/min～300r/min scope), give gear 2,3 with transmission of power, give main shaft 6 by worm screw 4, worm gear 5 with transmission of power again, thereby realize the low speed rotation (rotating speed is 0.5r/min, and its rotating speed can be set by motor and be adjusted in 0.5r/min～15r/min scope) of main shaft 6.The common scroll chuck 7 of main shaft 6 heads is clamped an end of workpiece 8, and the other end of workpiece is withstood by top 10 in the movable tailstock 9 and be fixing, thereby realizes the low speed rotation of workpiece 8.The clamping of workpiece 8 can be undertaken by the axis hole of main shaft 6, also can unclamp hex bolts 23 mobile carrying out on intermediate pads 21 by movable tailstock 9.
The utility model can be used with following two kinds of lathes.The one, this device of equipment on the general NC milling machine workbench of length feed numerical controlization is being arranged, and make the motor of this device link to each other with former digital control system (former digital control system must have the corresponding interface), realize the length feed and the low speed rotation of workpiece, thereby carry out the cylindrical cam groove processing of workpiece; The 2nd, on centre numerically controlled lathe, to reequip, milling cutter is contained in the spindle hole of spindle stock, realizes the high speed rotation of milling cutter, removes the numerical control device of length feed, and the hand slip crate of gear, the tooth bar mechanism that uses engine lathe instead realizes the feed motion of cutting.Remove electric driving tool post on the cross slide, put the utility model device, and the motor of this device is linked to each other with former digital control system (replacing former length feed numerical control part), realize the length feed and the low speed rotation of workpiece, thereby realize the cylindrical cam groove processing of workpiece.
Claims (4)
1, a kind of low-speed revolving device of processing column cam path, it is characterized in that: be provided with transmission case, scroll chuck, motor, tailstock and base plate, be provided with main shaft, power transmission shaft and worm and gear and travelling gear in the transmission case, worm gear, worm screw are located at respectively on main shaft and the power transmission shaft, and travelling gear is located at respectively on power transmission shaft and the motor shaft; Spindle nose is equipped with scroll chuck and places outside the transmission case casing; Motor is fixed in the outside of transmission case casing, and transmission case and tailstock all are fixed on the base plate.
2, the low-speed revolving device of a kind of processing column cam path as claimed in claim 1 is characterized in that: worm gear is provided with band-type brake mechanism.
3, the low-speed revolving device of a kind of processing column cam path as claimed in claim 2 is characterized in that: described band-type brake mechanism is made of brake ribbon, fixed block, adjusting screw(rod), nuts and bolt, and band-type brake mechanism is fixed on the transmission case casing.
4, the low-speed revolving device of a kind of processing column cam path as claimed in claim 1 or 2, it is characterized in that: be provided with top in the tailstock, be provided with intermediate pads between tailstock and the base plate, the bottom surface of tailstock is provided with groove, the upper side of intermediate pads is provided with boss, groove on its tailstock matches with boss on the intermediate pads, is made it to fix by bolt between tailstock and the intermediate pads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420109578 CN2756382Y (en) | 2004-11-29 | 2004-11-29 | Low speed rotary device for machining cylindrical cam groove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420109578 CN2756382Y (en) | 2004-11-29 | 2004-11-29 | Low speed rotary device for machining cylindrical cam groove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2756382Y true CN2756382Y (en) | 2006-02-08 |
Family
ID=35964770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420109578 Expired - Lifetime CN2756382Y (en) | 2004-11-29 | 2004-11-29 | Low speed rotary device for machining cylindrical cam groove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2756382Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1302895C (en) * | 2004-11-29 | 2007-03-07 | 盐城市机床有限公司 | Low-speed rotary apparatus for machining cylindrical cam groove |
| CN102284880A (en) * | 2011-07-12 | 2011-12-21 | 油机机械工业（昆山）有限公司 | C-axis device of numerical control vertical lathe |
| CN103949703A (en) * | 2014-04-29 | 2014-07-30 | 江联重工股份有限公司 | Device for milling groove of saddle-type pipe joint |
| CN110962047A (en) * | 2018-09-28 | 2020-04-07 | 中国科学院沈阳自动化研究所 | Flexible automatic decomposition system suitable for solid rocket engine |
-
2004
- 2004-11-29 CN CN 200420109578 patent/CN2756382Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1302895C (en) * | 2004-11-29 | 2007-03-07 | 盐城市机床有限公司 | Low-speed rotary apparatus for machining cylindrical cam groove |
| CN102284880A (en) * | 2011-07-12 | 2011-12-21 | 油机机械工业（昆山）有限公司 | C-axis device of numerical control vertical lathe |
| CN103949703A (en) * | 2014-04-29 | 2014-07-30 | 江联重工股份有限公司 | Device for milling groove of saddle-type pipe joint |
| CN103949703B (en) * | 2014-04-29 | 2016-03-30 | 江联重工股份有限公司 | The device of milling saddle-shape pipe joint groove |
| CN110962047A (en) * | 2018-09-28 | 2020-04-07 | 中国科学院沈阳自动化研究所 | Flexible automatic decomposition system suitable for solid rocket engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20041129 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |