CN2236923Y - Camshaft polishing machine - Google Patents
Camshaft polishing machine Download PDFInfo
- Publication number
- CN2236923Y CN2236923Y CN 95241562 CN95241562U CN2236923Y CN 2236923 Y CN2236923 Y CN 2236923Y CN 95241562 CN95241562 CN 95241562 CN 95241562 U CN95241562 U CN 95241562U CN 2236923 Y CN2236923 Y CN 2236923Y
- Authority
- CN
- China
- Prior art keywords
- main shaft
- ramming head
- spring
- polishing
- workpiece
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000005498 polishing Methods 0.000 title claims abstract description 29
- 230000001105 regulatory effect Effects 0.000 claims abstract description 4
- 230000007246 mechanism Effects 0.000 claims description 16
- 239000012530 fluid Substances 0.000 claims description 11
- 230000033001 locomotion Effects 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 4
- 210000004907 gland Anatomy 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 230000020347 spindle assembly Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Images
Landscapes
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
Abstract
A cam shaft polishing machine belongs to a special polishing machine tool and solves the problem of precise polishing processing of an engine cam shaft, the machine is driven by two double-speed motors, a main shaft rotates and axially moves in a serial mode, the rotating speed of the machine is monitored by an instrument and can be manually regulated, a workpiece is clamped by a hydraulic clamping device and is processed by abrasive belt polishing, the workpiece can be automatically positioned and clamped under the control of an industrial PC (personal computer), and the roughness of the surface of the workpiece can reach 0.4-0.1 after the workpiece is processed by the machineThe cam curve lift error after polishing is less than plus or minus 0.01, the machine is simple and convenient to operate, high in production efficiency and easy to debug and maintain, and is suitable for being used as a special polishing machine tool for cam shafts of automobile engines and marine diesel engines.
Description
The utility model belongs to the special-purpose polishing lathe of engine cam.
The polishing of automobile or marine engine camshaft directly influences the life-span and the noise of engine, along with the development of Hyundai Motor, shipping industry with strive unexpectedly, the polishing processing of camshaft more and more is subjected to the attention of country and producer.The camshaft polishing machine that Beijing two machine tool plants make, be to rotate by a motor-driven main shaft, through the gear mechanism conversion lathe bed is gone here and there vertically again, processing to camshaft is to be finished by a whole set of cam mechanism of profiling mould, and machine tool structure is too fat to move, and vibration is big, quality of finish is not high, productivity ratio is low, and maintenance and adjustment can not be satisfied the demand of modern engine cam polishing processing relatively because of difficulty.
The purpose of this utility model is to avoid above-mentioned weak point of the prior art and a kind of camshaft polishing machine of providing, and it can satisfy the demand of polishing precision, and machine tool structure is reasonable, and is easy and simple to handle, is easy to the debugging maintenance.
For achieving the above object, the technical solution that the utility model adopts be by main shaft and the processed camshaft of tailstock clamping carry out can stepless speed regulation forward and backward, with the axial motion of stepless speed regulation, polish processing by making up the axle journal and the cam of ramming head again to camshaft.
The purpose of this utility model can reach by following measure: main shaft be installed in the headstock before, on the back bearing shell body, drive by two double-speed motors, one rotates main shaft, another traction main shaft is gone here and there vertically, each links its buncher through one group of bevel gear and speed-regulating hand wheel, on the power transmission shaft of buncher, velocity sensor is housed and connects gauge outfit through lead, main shaft adopts fluid friction bearing, hydraulic chuck is equipped with at the place at the front-end of spindle lid, spring is equipped with at the main shaft middle part, the last ramming head of combination ramming head is driven by cylinder, vapour pressure is regulated in 0.05～0.6MPA scope, following ramming head is driven by one group of spring with its jib connection, is provided with take-up mechanism in the combination ramming head, and spring is equipped with at the tailstock middle part.
The purpose of this utility model can also reach by following measure: an end of main shaft links to each other with eccentric shaft through connector, rocking bar, single-row centripetal bearing is arranged in the connector, main shaft is through fluid friction bearing, be contained in forward and backward bearing shell body, fluid friction bearing with before, return line in the back bearing shell body is connected, add y-type seal ring in the return line outside, spring is equipped with at the main shaft middle part, in the inboard of belt pulley single-row phase axle being housed holds, one side of belt pulley connects dial, and dial is connected with main shaft movingly through key; In the centre bore of hydraulic chuck spindle flange, reference column is housed, have in the chuck oil cylinder and its piston movingly, reference column is equipped with collet outward, and the first end of spring clip is outward by the taper hole gland, its other end is connected and fixed nut, between collet, piston, hold-down nut bush ring is installed; There is one group of spring to drive the take-up roller in the combination ramming head, makes it be close to ramming head with the tensioning abrasive band along take-up mechanism guide groove movement.
The drawing of accompanying drawing is described as follows:
Fig. 1 camshaft polishing machine front view
Fig. 2 is the A-A profile of Fig. 1
Fig. 3 is the B-B profile of Fig. 1
Fig. 4 is the headstock spindle assembly structure figure
Fig. 5 hydraulic chuck assembly structure figure
Fig. 6 tailstock front view
Fig. 7 take-up mechanism map
In Fig. 1 to Fig. 7,1-headstock, 2-combination ramming head device, ramming head cylinder under the 3-, 4-tailstock, 5-lathe bed, 6-Hydraulic Station fuel tank, 7-Hydraulic Station Oil pump electrical machinery, 8-combination ramming head take-up mechanism, 9-main shaft string dynamic frequency speed-regulating hand wheel, 10-buncher, 11-double-speed motor, the 12-eccentric shaft, 13-double-speed motor, 14-speed of mainshaft speed-regulating hand wheel, the 15-buncher, 16-driving belt, ramming head driving spring under the 17-, the 18-tape mechanism, 19-take-up mechanism guide groove, 20-tape transport, the last ramming head cylinder of 21-, the last ramming head of 22-, ramming head under the 23-, ramming head jib under the 24-, the 25-rocking bar, the 26-connector.The 27-main shaft, fluid friction bearing behind the 28-, bearing shell body behind the 29-, 30-Y RunddichtringO, the 31-spring, bearing shell body before the fluid friction bearing before the 32-dial, 33-, 34-, the 35-drive end bearing bracket, 36-chuck oil cylinder, 37-camshaft workpiece, the 38-reference column, 39-spindle flange, 40-oil cylinder bonnet, the 41-piston, 42-sealing ring, 43-oil cylinder protecgulum, 44-taper hole gland, 45-collet, 46-core retainer plate, 47-spring, 48-tailstock oil cylinder, the 49-screw rod of hanging oneself, hang screw rod under the 50-spring, 51-, 52-take-up roller, the 53-thimble, 54-belt pulley, 55-lining, the 56-crank, 57-axle, 58-retainer plate.
Below in conjunction with accompanying drawing, enforcement of the present utility model is described in further detail; Fig. 1 is a camshaft polishing machine front view, and this machine is made up of lathe bed [5], headstock [1], combination ramming head device [2], tailstock parts such as [4].Fig. 2 is Figure 1A-A profile, processes such as expression motor transmission, double-speed motor [13] below headstock [1] is through driving belt [16], buncher [15], belt pulley [54], dial [32], driving main shaft [27] through key rotates, at the double-speed motor [11] of headstock [1] side through belt pulley, buncher [10], eccentric shaft [12], rocking bar [25] traction connector [26], it is moving that main shaft [27] is gone here and there vertically, buncher [15] links to each other with speed of mainshaft speed-regulating hand wheel [14] through bevel gear, buncher [10] links to each other with main shaft string dynamic frequency speed-regulating hand wheel [9] through another bevel gear, installation rate sensor on the power transmission shaft, be connected in gauge outfit on headstock [1] panel through lead, during work, the operator can pass through instrument, at any time dynamically monitor the polishing situation of camshaft, can also change rotating speed and string dynamic frequency by handwheel at any time according to the demand of polishing precision, Fig. 4 is the headstock spindle assembly structure figure, main shaft [27] is through fluid friction bearing [33], [28], front and back bearing shell body [29], [34], be supported in the headstock, also can go here and there vertically when rotating for making main shaft [27], adopt fluid friction bearing, oil is lubricant, oil leaks when preventing that axle string is moving, fluid friction bearing [33], [28] with before, back bearing shell body [29], [34] return line in is communicated with, add y-type seal ring [30] in the return line outside, belt pulley [54] is through dial, key drives main shaft [27] and rotates, between retainer plate [58] and belt pulley [54], between connector [26] and main shaft [27], single-row centripetal bearing is housed all, at the middle part of main shaft [27] spring [31] is housed, it can eliminate the fit-up gap on the axial motion direction, reduce the impulsive force of axial motion, guarantee the stable drive of main shaft [27] axial motion.Fig. 6 is the tailstock front view, at the tailstock middle part spring [47] is housed, and it can guarantee processing work when rotating, the realization axial motion.
Fig. 5 is the hydraulic chuck assembly structure figure, camshaft workpiece [37] is by hydraulic chuck and tailstock thimble [53] clamping, the oil that is come by Hydraulic Station during work is through the oil groove spindle flange [39] of front-end of spindle lid [35], enter chuck oil cylinder [36], control front-end of spindle lid [35], the turnover oil trend of oil groove, can promote left and right the moving of piston [41] of oil cylinder [36] lining, piston [41] is when moving right, promoting collet [45] unclamps, piston [41] is when being moved to the left, and under taper hole gland [44] promoted, collet [45] clamped.The process of clamping workpiece is performed such: the operator delivers to workpiece [37] between hydraulic chuck and tailstock, under the control of magnetic valve, tailstock thimble [53] at first arrives collet [45] lining with the workpiece ejection, when reference column [38] enters the locating hole of workpiece [37], be about to accurately location of workpiece [37], magnetic valve makes piston [41] be moved to the left then, workpiece [37] is clamped, main shaft [27] action, combination ramming head polishing workpiece [37] is after the completion of processing, magnetic valve makes piston [41] commutation, it is moved right, and at this moment collet [45] unclamps, and tailstock is recessed workpiece [37] simultaneously, the camshaft workpiece [37] that has polished is fallen on the bearing support automatically, said process can carry out under Industrial PC Computer control after programming automatically, and productivity ratio improves, and has also satisfied the demand of polishing workpiece in enormous quantities simultaneously.
Fig. 3 is the B-B profile of Fig. 1, the structure of its expression abrasive band ramming head, wherein [18] are tape mechanism, [20] be tape transport, [22] be last ramming head, [23] be following ramming head, [21] be that last ramming head drives cylinder, [24] be following ramming head jib, the axle journal of ramming head [22] machining cam axle [37] in the combination ramming head, the cam of following ramming head machining cam axle [37], on, the number of following ramming head depends on the axle journal of processed camshaft [37] and the number of cam, last ramming head is driven by cylinder [21], vapour pressure is regulated in 0.05～0.6MPA scope, the action of following ramming head [23] is by spring [17] and following ramming head cylinder [3] control, spring [17] control is ramming head [23] down, be close to workpiece [37] when making its work, not processing at present, ramming head cylinder [3] driving crank [56] rotates around axle [57], ramming head jib [24] is moved down, ramming head [23] is opened under driving, the abrasive band of polishing usefulness is supplied with by tape mechanism [18], it is taken out of from ramming head by the geared system of tape transport [20] with useless abrasive band, Fig. 7 is the take-up mechanism map, take-up mechanism is the key device that ensures ramming head abrasive band operate as normal, during work, the abrasive band will inevitably change on length, and this variation is by the screw rod of hanging oneself [49], hang the spring [50] that screw rod [51] supporting down and go to absorb, spring [50] drives take-up roller [52] and moves in take-up mechanism guide groove [19], make the abrasive band be in the state of tightening up at any time, thereby guarantee that the abrasive band is close to ramming head.
The utility model has following advantage compared to existing technology:
1, lathe operates steadily, and vibrates little.
2, workpiece polishing quality height, the polishing workpiece surface roughness is 0.4～0.1 , cam curve lift after the polishing
Error＜± 0.01.
3, easy and simple to handle, back work is time-consuming few.
4, be easy to the debugging maintenance.
5, automaticity height, the production efficiency height.
Claims (4)
1 one kinds of camshaft polishing machines, comprise by lathe bed, headstock, double-speed motor, belt pulley, devices such as buncher, by last ramming head, following ramming head, tape mechanism, the combination ramming head that tape transport is formed, the clamping workpiece device, Industrial PC Computer, it is characterized in that main shaft be installed in the headstock before, on the back bearing shell body, drive by two double-speed motors, one rotates main shaft, another traction main shaft is gone here and there vertically, each links its buncher through one group of bevel gear and speed-regulating hand wheel, on the power transmission shaft of buncher, velocity sensor is housed, connect gauge outfit through lead, main shaft adopts fluid friction bearing, and hydraulic chuck is equipped with at the place at the front-end of spindle lid, spring is equipped with at the main shaft middle part, the last ramming head of combination ramming head is driven by cylinder, and vapour pressure is regulated in 0.05～0.6MPA scope, and following ramming head is driven by one group of spring with its jib connection, be provided with take-up mechanism in the combination ramming head, spring is equipped with at the tailstock middle part.
2 camshaft polishing machines as claimed in claim 1, an end that it is characterized in that main shaft is through connector, rocking bar links to each other with eccentric shaft, single-row centripetal bearing is arranged in the connector, main shaft is through fluid friction bearing, be contained on the forward and backward bearing shell body, return line in fluid friction bearing and the forward and backward bearing shell body is communicated with, add y-type seal ring in the return line outside, spring is equipped with at the main shaft middle part, single-row centripetal bearing is equipped with in inboard at belt pulley, and a side of belt pulley connects dial, and dial is connected with main shaft movingly through key.
3 camshaft polishing machines as claimed in claim 1, it is characterized in that in the centre bore of hydraulic chuck spindle flange, reference column being housed, have in the chuck oil cylinder and its piston movingly, reference column is equipped with collet outward, the first end of spring clip is outward by the taper hole gland, its other end is connected and fixed nut, between the yellow chuck of bullet, piston, hold-down nut bush ring is installed.
4 camshaft polishing machines as claimed in claim 1 is characterized in that making up and have one group of spring to drive the take-up roller in the ramming head, and along take-up mechanism guide groove movement, the tensioning abrasive band makes it be close to ramming head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95241562 CN2236923Y (en) | 1995-05-04 | 1995-05-04 | Camshaft polishing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95241562 CN2236923Y (en) | 1995-05-04 | 1995-05-04 | Camshaft polishing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2236923Y true CN2236923Y (en) | 1996-10-09 |
Family
ID=33882705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95241562 Expired - Fee Related CN2236923Y (en) | 1995-05-04 | 1995-05-04 | Camshaft polishing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2236923Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1073908C (en) * | 1998-07-08 | 2001-10-31 | 上海机床厂有限公司 | Grinding method and device for cylindrical workpiece of generating line parallel to gyroaxis |
| CN102717320A (en) * | 2012-06-08 | 2012-10-10 | 重庆银钢一通凸轮科技有限公司 | Abrasive belt polishing device |
| CN103737462A (en) * | 2014-01-24 | 2014-04-23 | 重庆希米机械设备有限公司 | Automatic cam polishing device |
| CN106736963A (en) * | 2017-03-15 | 2017-05-31 | 魏显懿 | A kind of engine cam automatic deburring machine |
| CN107309777A (en) * | 2017-08-14 | 2017-11-03 | 邵东和谐五金机电有限公司 | A kind of pattern polishing machine of ratchet wrench head |
| CN111618709A (en) * | 2020-06-11 | 2020-09-04 | 陈飞 | Manufacturing and processing technology of engine camshaft |
-
1995
- 1995-05-04 CN CN 95241562 patent/CN2236923Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1073908C (en) * | 1998-07-08 | 2001-10-31 | 上海机床厂有限公司 | Grinding method and device for cylindrical workpiece of generating line parallel to gyroaxis |
| CN102717320A (en) * | 2012-06-08 | 2012-10-10 | 重庆银钢一通凸轮科技有限公司 | Abrasive belt polishing device |
| CN102717320B (en) * | 2012-06-08 | 2014-09-03 | 四川银钢一通凸轮轴有限公司 | Abrasive belt polishing device |
| CN103737462A (en) * | 2014-01-24 | 2014-04-23 | 重庆希米机械设备有限公司 | Automatic cam polishing device |
| CN106736963A (en) * | 2017-03-15 | 2017-05-31 | 魏显懿 | A kind of engine cam automatic deburring machine |
| CN107309777A (en) * | 2017-08-14 | 2017-11-03 | 邵东和谐五金机电有限公司 | A kind of pattern polishing machine of ratchet wrench head |
| CN111618709A (en) * | 2020-06-11 | 2020-09-04 | 陈飞 | Manufacturing and processing technology of engine camshaft |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |