CN202985299U - Numerically-controlled camshaft grinding lathe - Google Patents
Numerically-controlled camshaft grinding lathe Download PDFInfo
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- CN202985299U CN202985299U CN 201220707338 CN201220707338U CN202985299U CN 202985299 U CN202985299 U CN 202985299U CN 201220707338 CN201220707338 CN 201220707338 CN 201220707338 U CN201220707338 U CN 201220707338U CN 202985299 U CN202985299 U CN 202985299U
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- camshaft
- numerical control
- servo motor
- slide unit
- bed
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Abstract
The utility model discloses a numerically-controlled camshaft grinding lathe which comprises a lathe body, a working bedplate, a grinding wheel, a headstock mechanism, a grinding head assembly, a tailstock system, a rotating servo motor, a large longitudinal slipway, an axial servo motor, a flexible mechanism, a feed servo motor and a numerical control device. The working bedplate is arranged on the lathe body and provided with an upper slipway, a T-shaped groove enabling the tailstock system to axially move along the direction of a camshaft is arranged on the working bedplate, a single-acting air cylinder is arranged at the rear end of the tailstock system, the large longitudinal slipway is arranged on the back of the working bedplate and driven to axially move by the servo motor, the flexible mechanism is arranged on the large longitudinal slipway and connected with the feed servo motor, the headstock mechanism is connected with the rotating servo motor, the grinding wheel is connected with the grinding head assembly, and the numerical control device is connected to the latch body. By the aid of the numerically-controlled camshaft grinding lathe, burr grinding for blank surfaces of every cam of multiple types of camshafts is continuously automatically realized.
Description
Technical field
The utility model relates to a kind of extraordinary camshaft processing and uses the numerical control sander bed, especially relates to the camshaft numerical control sander bed that machining cam axle neighboring edge is criticized the peak burr.
Background technology
The camshaft special machine tool is the special purpose machine tool that internal combustion engine is made industry.At present, between camshaft neighboring edge burr and upper and lower mould, the processing at batch peak all relies on manual processing, there is no the complete set of equipments of this procedure processing.In the process of artificial, the feel that must rely on the people is fallen the surperficial sanding burr of camshaft, and machined surface can not guarantee to seamlessly transit.The operative employee is easily tired, produces personal injury, can not guarantee safely, and efficient is low, and the grinding wheel of consumption is too many, and dust is serious, contaminated environment and injury operative employee health, and the product quality uniformity is poor, and percent defective is high.
The utility model content
The utility model purpose: the purpose of this utility model is in order to make up the deficiencies in the prior art, a kind of safety operation to be provided, and accuracy rate is high, and the camshaft numerical control sander bed of increasing work efficiency.
technical scheme: a kind of camshaft numerical control sander bed, comprise lathe bed, working plate, abrasive grinding wheel, headstock mechanism, the bistrique assembly, tailstock system, rotate servomotor, vertically large slide unit, axial servomotor, compliant mechanism, the feed servo motor, numerical control device, described lathe bed is provided with working plate, described working plate is provided with slide unit, described working plate is provided with T-shaped groove makes tailstock system move axially along the camshaft direction, the tailstock system rear end is provided with single-acting cylinder, the working plate rear is provided with vertically large slide unit, vertically large slide unit is done axially-movable by axial driven by servomotor, vertically large slide unit is provided with compliant mechanism, described headstock mechanism is connected with the rotation servomotor, described compliant mechanism connects the feed servo motor, described abrasive grinding wheel connects the bistrique assembly, described numerical control device is connected in lathe bed.
Connect by two extension springs between vertically large slide unit and compliant mechanism.
Described lathe bed below is provided with floor push.
Thereby the intersection of described working plate and lathe bed is provided with for digital control system and starts instruction to start the starting switch that whole lathe is completed the cyclic process process.
Described abrasive grinding wheel is located at the left side of compliant mechanism.
Beneficial effect: after the utility model had adopted such structure, the utility model grinding machine was controlled by numerical control, had realized that a plurality of cam surfaces complete grinding continuously and automatically.Especially in processing continuously, cooperation by means of mechanical flexibility structure and numerical control control, guaranteed that process convexity wheel shaft is subject to the pliable pressure of skive all the time, changed the original manufacturing procedure of manually completing that relies on fully, realized full-automatic processing continuously.The uniformity that has kept technological parameter in process guarantees and has improved crudy, has greatly improved operating efficiency, has saved consumptive material, has reduced production cost.
Description of drawings
Accompanying drawing 1 is structural representation of the present utility model;
Accompanying drawing 2 is the top view of accompanying drawing 1;
Accompanying drawing 3 is feed servo motor torque and grinding wheel pressure dependence schematic diagram in the utility model.
The specific embodiment
The course of work of the utility model camshaft numerical control sander bed is as follows:
a kind of camshaft numerical control sander bed, comprise lathe bed 5, working plate 6, abrasive grinding wheel 7, headstock mechanism 1, bistrique assembly 3, tailstock system 14, rotate servomotor 8, vertically large slide unit 2, axial servomotor 9, compliant mechanism 4, feed servo motor 10, numerical control device 11, lathe bed 5 is provided with working plate 6, working plate 6 is provided with slide unit 18, working plate 6 is provided with T-shaped groove makes tailstock system 14 move axially along camshaft 16 directions, tailstock system 14 rear ends are provided with single-acting cylinder 15, use during camshaft 16 loading and unloading, working plate 6 rears are provided with vertically large slide unit 2, vertically large slide unit 2 is driven by axial servomotor 9 and does axially-movable, vertically large slide unit 2 is provided with compliant mechanism 4, headstock mechanism 1 is connected with and rotates servomotor 8, compliant mechanism 4 connects feed servo motor 10, compliant mechanism 4 is by feed servo motor-driven ball screw, abrasive grinding wheel 7 connects bistrique assembly 3, bistrique assembly 3 rotates abrasive grinding wheel 7, produce cutting force, numerical control device 11 is connected in lathe bed 5, connect by two extension springs 17 between vertically large slide unit 2 and compliant mechanism 4, abrasive grinding wheel 7 contacts with camshaft 16, two springs 17 that are provided with by upper slide unit again produce flexible, assurance abrasive grinding wheel 7 organically combines with camshaft 16 and removes the surperficial burr of camshaft, lathe bed 5 belows are provided with floor push 13, thereby the intersection of working plate 6 and lathe bed 5 is provided with for digital control system 11 and starts instruction to start the starting switch 12 that whole lathe is completed the cyclic process process, add and be used for man-hour normally opening and always stopping, abrasive grinding wheel 7 is located at the left side of compliant mechanism 4.In this practicality was new, abrasive grinding wheel 7 was skive.
Operation principle: a upper offset cam axle 16, after machining.Vertically large slide unit 2 is in the lathe farthest right position.Compliant mechanism 4 is in the lathe rearmost position, at this moment manually steps on floor push 13, and the camshaft 16 that processes is lifted down, and changes unprocessed another offset cam axle 16.Starting switch 12, after startup:
The 1st step: abrasive grinding wheel 7 begins rotation under 3 effects of bistrique assembly, feed servo motor 10 drives compliant mechanism 4 and contacts camshaft 16 with abrasive grinding wheel 7, until receive the pressure appropriate signals.
The 2nd step: axially the servomotor 9 vertically large slide units 2 (together with compliant mechanism 4 and the abrasive grinding wheel 7 of top) of drive move from right to left.This moment, abrasive grinding wheel 7 was completed first deburring process on camshaft 16.
The 3rd step: feed servo motor 10 drives whole compliant mechanism 4 and leaves camshaft 16, returns initial point.Rotating servomotor 8 drives the main shaft that is arranged in headstock mechanism 1 and rotates 180 °.Begin the processing of second batch of peak burr.
The 4th step: feed servo motor 10 drives whole compliant mechanism 4 contact camshafts 16, axially the servomotor 9 vertically large slide units 2 (together with compliant mechanism 4 and the abrasive grinding wheel 7 of top) of drive move from left to right, and this moment, abrasive grinding wheel 7 was completed second batch of peak deburring process on camshaft 16.
The 5th step: after completing second batch of peak deburring, vertically large slide unit 2 is parked in initial point (the right), and whole compliant mechanism 4 is return initial point (back) under feed servo motor 10 drives.Abrasive grinding wheel 7 stops operating under bistrique assembly 3 effect, rotates the main shaft that servomotor 8 drives in headstock mechanism 1 and forwards 0 point (first surface) to.At this moment on numerical control device, zero-bit is all got back to by system 11, waits for next loop start.
Manually the camshaft 16 that processes is taken off, load onto camshaft to be processed 16, repeat the 1-5 step.
In the 1st and the 4th step, can beat totally in order to guarantee on camshaft batch peak burr, can extend again grinding spindle and grinding wheel service life.
The technical scheme that the utility model proposes is: adopt flexible processing method, guarantee that camshaft can receive enough pressure.Reduce the rail friction resistance, stage clip elastic force is at any time with the kind capable of regulating.The control model of feed servo motor is set to the torque control model simultaneously, and a torque limit value Tt is set, and as actual torque Ta＜Tt, the motor forward is pressed forward, and when Ta＞Tt, the motor reversal pressure of drawing back is worked as Ta=Tt, motor stalling.Send simultaneously pressure and reach limited signal (being the pressure appropriate signals).Make vertically large slide unit left direction move, normal process is to headstock place, outside upper electrical control, mechanical aspects guarantees that by compliant mechanism pressure is relatively constant.By the coordinating of frame for movement and electrical control, solved the problem of inconsistency that exists in manual processing like this.
Further need the problem of explanation to be, what need to keep is the pressure that is added on camshaft, is that motor has constant torque and the torque control mode is controlled, and to be subject to grinding wheel pressure be dull corresponding relation for the torque of mandatory declaration feeding motor and camshaft for this reason.Due to grinding wheel and the employing of feeding motor is the ball-screw syndeton, shown in Figure 3, comprise feed screw 19, ball nut 20, driving torque Tt21, axial compressive force Ea22, by related data [Wang Zhimin, Zhang Xizhong, Li Yong. ball-screw-transmission uses and development [J]. electromechanical engineering technology, 2004, (9)] pass of driving torque Te and axial compressive force Ea is in Fig. 3 as can be known:
In formula: Ea---axial compressive force;
H---transmission efficiency, relevant with the screw mandrel nominal diameter with pitch;
Tt---motor-driven torque;
Ph---pitch (helical pitch)
This formula shows, in the situation that pitch and screw mandrel nominal diameter determine, be proportional relation between driving torque Te and axial compressive force Ea, dull correspondence, so the control of pressure just is converted into control to torque.
The utility model camshaft numerical control sander bed is controlled by digital control servo system, realized that multiple camshaft completes the burr grinding on each blank surface, cam place continuously, automatically, especially in upper/lower die adjacent side edge, a lot of peak burrs of criticizing by the combination of flexible structure and digital control system, are completed processing.Change the original manufacturing procedure of manually completing that relies on fully, realized full-automatic, processing continuously, kept the uniformity of technological parameter in process, guaranteed and improved crudy, greatly improved operating efficiency.
Claims (5)
1. camshaft numerical control sander bed, it is characterized in that: comprise lathe bed (5), working plate (6), abrasive grinding wheel (7), headstock mechanism (1), bistrique assembly (3), tailstock system (14), rotate servomotor (8), vertically large slide unit (2), axial servomotor (9), compliant mechanism (4), feed servo motor (10), numerical control device (11), described lathe bed (5) is provided with working plate (6), described working plate (6) is provided with slide unit (18), described working plate (6) is provided with T-shaped groove makes tailstock system (14) move axially along camshaft (16) direction, tailstock system (14) rear end is provided with single-acting cylinder (15), working plate (6) rear is provided with vertically large slide unit (2), vertically large slide unit (2) is driven by axial servomotor (9) and does axially-movable, vertically large slide unit (2) is provided with compliant mechanism (4), described headstock mechanism (1) is connected with and rotates servomotor (8), described compliant mechanism (4) connects feed servo motor (10), described abrasive grinding wheel (7) connects bistrique assembly (3), described numerical control device (11) is connected in lathe bed (5).
2. camshaft numerical control sander bed as claimed in claim 1, is characterized in that: connect by two extension springs (17) between vertically large slide unit (2) and compliant mechanism (4).
3. camshaft numerical control sander bed as claimed in claim 1, is characterized in that: be provided with floor push (13) below described lathe bed (5).
4. camshaft numerical control sander bed as claimed in claim 1 is characterized in that: the intersection of described working plate (6) and lathe bed (5) is provided with for digital control system (11) thereby starts instruction to start whole lathe and complete the starting switch of cyclic process process (12).
5. camshaft numerical control sander bed as claimed in claim 1, it is characterized in that: described abrasive grinding wheel (7) is located at the left side of compliant mechanism (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220707338 CN202985299U (en) | 2012-12-19 | 2012-12-19 | Numerically-controlled camshaft grinding lathe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220707338 CN202985299U (en) | 2012-12-19 | 2012-12-19 | Numerically-controlled camshaft grinding lathe |
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| Publication Number | Publication Date |
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| CN202985299U true CN202985299U (en) | 2013-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220707338 Expired - Fee Related CN202985299U (en) | 2012-12-19 | 2012-12-19 | Numerically-controlled camshaft grinding lathe |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103042454A (en) * | 2012-12-19 | 2013-04-17 | 南通德鑫数控机床有限公司 | Numerically-controlled grinding machine tool with camshafts |
| CN106424947A (en) * | 2016-10-12 | 2017-02-22 | 广西玉柴机器股份有限公司 | Simple deburring platform |
| CN110977668A (en) * | 2019-12-25 | 2020-04-10 | 南通德鑫数控机床有限公司 | Numerical control full-automatic one-time forming camshaft blank grinding machine tool |
-
2012
- 2012-12-19 CN CN 201220707338 patent/CN202985299U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103042454A (en) * | 2012-12-19 | 2013-04-17 | 南通德鑫数控机床有限公司 | Numerically-controlled grinding machine tool with camshafts |
| CN103042454B (en) * | 2012-12-19 | 2016-01-13 | 南通德鑫数控机床有限公司 | Camshaft numerical control sander bed |
| CN106424947A (en) * | 2016-10-12 | 2017-02-22 | 广西玉柴机器股份有限公司 | Simple deburring platform |
| CN110977668A (en) * | 2019-12-25 | 2020-04-10 | 南通德鑫数控机床有限公司 | Numerical control full-automatic one-time forming camshaft blank grinding machine tool |
| CN110977668B (en) * | 2019-12-25 | 2024-05-24 | 南通德鑫数控机床有限公司 | Full-automatic one shot forming camshaft blank lathe of numerical control |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130612 Termination date: 20141219 |
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| EXPY | Termination of patent right or utility model |