CN201890753U - Lifting mechanism capable of controlling screw rod transmission through servo motor - Google Patents
Lifting mechanism capable of controlling screw rod transmission through servo motor Download PDFInfo
- Publication number
- CN201890753U CN201890753U CN2010205130225U CN201020513022U CN201890753U CN 201890753 U CN201890753 U CN 201890753U CN 2010205130225 U CN2010205130225 U CN 2010205130225U CN 201020513022 U CN201020513022 U CN 201020513022U CN 201890753 U CN201890753 U CN 201890753U
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- screw mandrel
- hole
- lifting mechanism
- guide
- linear bearing
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Abstract
The utility model discloses a lifting mechanism capable of controlling screw rod transmission through a servo motor, which comprises a servo driver, a servo motor, a mechanical coupling, a Z-shaped suspension arm, a linear bearing, a first guide rod, a second guide rod and a screw rod, wherein the servo driver is electrically connected with the servo motor; a rotating shaft of the servo motor is connected to the mechanical coupling which is connected to the screw rod; the linear bearing is provided with a first guide through hole, a second guide through hole and a screw rod through hole; the first guide rod penetrates through the first guide through hole; the second guide rod penetrates through the second guide through hole; the inner hole wall of the screw rod through hole is provided with a screw thread structure which is matched with screw threads of the screw rod; the screw rod is connected with the linear bearing; and the linear bearing is fixedly connected with the Z-shaped suspension arm. The lifting mechanism has the beneficial effects that the response speed and stability of the lifting mechanism of a hot air levelling machine are improved, the processing capacity of products is improved, and the production and maintenance costs are obviously reduced at the same time.
Description
Technical field
The utility model relates to PCB manufacturing mechanical field, relates in particular to the lifting mechanism of a kind of servomotor control screw mandrel transmission.
Background technology
The groundwork of traditional vertical hot air levelling machine be exactly by cylinder drive one can vertical lift arm hang pcb board and immerse in the hi-heat tin liquor, utilize the flexible of cylinder and belt combination to drive the lifting of arm.In the uphill process of arm, pcb board passes and utilizes pressurized air to pass through long and narrow mouth (being commonly called as air knife) to form the air-flow air knife unnecessary tin on the pcb board and in the through hole is blown off, realizes on the pcb board spare the smooth of tin and surface on the selectivity.
Existing hot air levelling machine lifting mechanism utilizes its cylinder operation to do dipping and heaving, when the cylinder of lifting mechanism and the air knife of air blowing use simultaneously, can be disturbed the build-up of pressure instability by the great air knife of gas consumption.And the work media of cylinder is a pressurized air, it has compressibility and changeable pressure voltinism, uncontrollable, can't accurately control the speed of the upper and lower operation of gas bar, start and stop are swift and violent, and action response speed is slow, the speed stationarity is poor, the electromagnetic valve of in addition controlling compressed gas is poor to life period between the cylinder location feedback, causes occurring postponing air-flow, also has the collision phenomenon of motion thereby still have gas shock the arm back that puts in place to occur after causing cylinder to put in place.
Referring to accompanying drawing 1 and accompanying drawing 2, the lifting mechanism of existing air cylinder driven comprises cylinder 1, drive link 2, linear bearing 3, air knife 4 and tin stove 5.Cylinder 1 moves up and down on drive link under the driving of air pressure, responsiveness at load-carrying situation lower cylinder easily changes with the variation of load, less stable, bring bigger influence for position control and velocity control accuracy, also control is made troubles to technological parameter, causes the instability of quality.Simultaneously the environment for use of cylinder group is abominable relatively, is easy to generate a large amount of impurity, exhaust gases causes cylinder wear serious, the high unfavorable factor that can't overcome that exists of fault rate.
The utility model content
The purpose of this utility model provides the lifting mechanism of a kind of servomotor control screw mandrel transmission, overcomes prior art and adopts the start and stop of cylinder lifting mechanism swift and violent, and action response speed is slow, the shortcoming of speed stationarity difference.
Another purpose of the present utility model is that to solve the environment for use of cylinder group abominable relatively, is easy to generate a large amount of impurity, exhaust gases causes cylinder wear serious, the problem that fault rate is high.
The 3rd purpose of the present utility model is to solve the influence that air cylinder driven is subject to air knife, the inconstant problem of rising or falling speed.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: the lifting mechanism that the transmission of a kind of servomotor control screw mandrel is provided, comprise servo-driver, servomotor, the machinery drive coupling, Z-shaped arm, linear bearing, first pilot bar, second pilot bar and screw mandrel, described servo-driver is electrically connected with servomotor, mechanical drive coupling is linked in the rotating shaft of described servomotor, described mechanical drive coupling is linked screw mandrel, have first guide through hole on the described linear bearing, second guide through hole and screw mandrel through hole, described first pilot bar passes first guide through hole, described second pilot bar passes second guide through hole, the inner hole wall of described screw mandrel through hole is provided with the helicitic texture that is complementary with wire rod thread, described screw mandrel is connected with linear bearing, and described linear bearing is captiveed joint with Z-shaped arm.
The beneficial effects of the utility model are: the hot air levelling machine that is different from prior art adopts the start and stop of cylinder lifting mechanism swift and violent, action response speed is slow, the shortcoming of speed stationarity difference, the utility model replaces original cylinder lifting mechanism with the mode that servomotor adds screw mandrel, the speed of response and the stationarity of hot air levelling machine lifting mechanism have been improved, promote the working ability of product, significantly reduce the production maintenance cost simultaneously.
Further, by Z-shaped arm is set, the impurity in avoiding producing is deposited on screw mandrel and the pilot bar, has reduced the pollution of impurity, dust, has reduced equipment failure rate and maintenance cost, improves capacity utilization rate and product quality.
The 3rd, adopt the precision control of driven by servomotor, guarantee the constant of arm rising or falling speed, and be not subjected to the influence of air knife air-flow.
Description of drawings
Fig. 1 is the lifting mechanism structural representation of prior art air cylinder driven;
Fig. 2 is the air knife tin furnace structure scheme drawing of prior art air cylinder driven;
Fig. 3 is the lifting mechanism structural representation of the utility model screw mandrel transmission;
Fig. 4 is the lifting mechanism sectional perspective scheme drawing of the utility model screw mandrel transmission;
Fig. 5 is the air knife tin furnace structure scheme drawing of the utility model screw mandrel transmission.
Wherein, 10: servo-driver, 11: servomotor, 12: mechanical drive coupling, 13:Z shape arm, 14: linear bearing, 15: the first pilot bars, 16: the second pilot bars, 17: screw mandrel, 18: position sensor, 19: arm contiguous block, 20: fixed orifice, the 21:PCB plate, 22: air knife, 23: air knife, 24: the tin stove.
The specific embodiment
By describing technology contents of the present utility model, structural attitude in detail, realized purpose and effect, give explanation below in conjunction with embodiment and conjunction with figs. are detailed.
See also Fig. 3, Fig. 4 and Fig. 5, the lifting mechanism of the utility model servomotor control screw mandrel transmission, comprise servo-driver 10, servomotor 11, machinery drive coupling 12, Z-shaped arm 13, linear bearing 14, first pilot bar 15, second pilot bar 16 and screw mandrel 17, described servo-driver 10 is electrically connected with servomotor 11, mechanical drive coupling 12 is linked in the rotating shaft of described servomotor 11, described mechanical drive coupling 12 is linked screw mandrel 17, have first guide through hole on the described linear bearing 14, second guide through hole and screw mandrel through hole, described first pilot bar 15 passes first guide through hole, described second pilot bar 16 passes second guide through hole, the inner hole wall of described screw mandrel through hole is provided with the helicitic texture that is complementary with wire rod thread, described screw mandrel 17 is by 14 liftings of screw thread transmission linear bearing, described Z-shaped arm 13 is fixedly attached to linear bearing 14, and the lifting of described linear bearing 14 drives described Z-shaped arm 13 liftings.
In one embodiment, servo-driver 10 comprises programmable logic controller (PLC) spare and driving circuit.Servomotor 11 is that the driving by the programming of servo-driver 10 and driving circuit moves, and it rotates and the control that stops all to be subjected to programmable logic controller (PLC) spare plug-in and driving circuit.
In one embodiment, further comprise position sensor 18, described position sensor 18 is positioned on the plane parallel with the bottom of screw mandrel 17, and described position sensor 18 is electrically connected with servo-driver 10.The effect of position sensor 18 is when linear bearing arrives least significant end down, produces a signal and passes to servo-driver 10, allows it know and reaches lowermost end.Do the effective length that to know screw mandrel 17 according to the rotation and the step distance of servomotor 11 like this, stop the decline of linear bearing, avoid damaging linear bearing 14 at the lowermost end of screw mandrel 17.In addition, can measure the position that distance that pcb board 21 descends is come location revision inductor 18, be unlikely to damage tin stove 24 to determine pcb board 21 can rise up into effectively in the tin stove 24 by actual conditions.
In one embodiment, described mechanical drive coupling 12 is the mechanical reduction drive coupling.Machinery drive coupling 12 can also be power-transfer clutch or machinery acceleration drive coupling etc.Machinery drive coupling 12 roles are exactly that the rotation of servomotor 11 rotating shafts is coupled on the screw mandrel 17, make screw mandrel along with servomotor 11 rotating shafts rotation, do dipping and heaving thereby drive linear bearing 14 under the drive of screw thread.
In one embodiment, the lifting mechanism of servomotor control screw mandrel transmission comprises arm contiguous block 19, and described arm contiguous block 19 1 ends are captiveed joint with linear bearing 14, and the other end is captiveed joint with Z-shaped arm 13.
In one embodiment, Z-shaped arm 13 is provided with the fixedly fixed orifice 20 of pcb board 21.Fixed orifice 20 is set passes through bolt pcb board 21, to realize firm installation.Pcb board 21 moves along with the up-and-down movement of screw mandrel 17 after being fixed on the Z-shaped arm 13, after dropping to tin stove 24 mistake tin, rises to air knife (22, the 23) position that is oppositely arranged, and blows scruff off.
Because the lifting of pcb board 21 realizes by screw mandrel 17 transmissions, thereby has the following advantages at least:
The first, the mode that adds screw mandrel with servomotor replaces original cylinder lifting mechanism, has improved the speed of response and the stationarity of hot air levelling machine lifting mechanism, promotes the working ability of product, significantly reduces the production maintenance cost simultaneously.
The second, by Z-shaped arm is set, the impurity in avoiding producing is deposited on screw mandrel and the pilot bar, has reduced the pollution of impurity, dust, has reduced equipment failure rate and maintenance cost, improves capacity utilization rate and product quality.
The 3rd, adopt the precision control of driven by servomotor, guarantee the constant of arm rising or falling speed, and be not subjected to the influence of air knife air-flow.
The above only is embodiment of the present utility model; be not so limit claim of the present utility model; every equivalent structure or equivalent flow process conversion that utilizes the utility model specification sheets and accompanying drawing content to be done; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present utility model.
Claims (5)
1. the lifting mechanism of servomotor control screw mandrel transmission, it is characterized in that: comprise servo-driver, servomotor, the machinery drive coupling, Z-shaped arm, linear bearing, first pilot bar, second pilot bar and screw mandrel, described servo-driver is electrically connected with servomotor, mechanical drive coupling is linked in the rotating shaft of described servomotor, described mechanical drive coupling is linked screw mandrel, have first guide through hole on the described linear bearing, second guide through hole and screw mandrel through hole, described first pilot bar passes first guide through hole, described second pilot bar passes second guide through hole, the inner hole wall of described screw mandrel through hole is provided with the helicitic texture that is complementary with wire rod thread, described screw mandrel is connected with linear bearing, and described linear bearing is captiveed joint with Z-shaped arm.
2. the lifting mechanism of servomotor control screw mandrel according to claim 1 transmission, it is characterized in that: described lifting mechanism further comprises position sensor, described position sensor is positioned on the plane parallel with the bottom of screw mandrel, and described position sensor is electrically connected with servo-driver.
3. according to the lifting mechanism of claim 1 or 2 each described servomotor control screw mandrel transmissions, it is characterized in that: described mechanical drive coupling is the mechanical reduction drive coupling.
4. the lifting mechanism of servomotor control screw mandrel according to claim 3 transmission, it is characterized in that: described lifting mechanism further comprises the arm contiguous block, and described arm contiguous block one end is captiveed joint with linear bearing, and the other end is captiveed joint with Z-shaped arm.
5. the lifting mechanism of servomotor control screw mandrel according to claim 4 transmission, it is characterized in that: described Z-shaped arm is provided with the fixedly fixed orifice of pcb board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205130225U CN201890753U (en) | 2010-09-01 | 2010-09-01 | Lifting mechanism capable of controlling screw rod transmission through servo motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205130225U CN201890753U (en) | 2010-09-01 | 2010-09-01 | Lifting mechanism capable of controlling screw rod transmission through servo motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201890753U true CN201890753U (en) | 2011-07-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205130225U Expired - Fee Related CN201890753U (en) | 2010-09-01 | 2010-09-01 | Lifting mechanism capable of controlling screw rod transmission through servo motor |
Country Status (1)
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| CN (1) | CN201890753U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103091039A (en) * | 2011-10-27 | 2013-05-08 | 软控股份有限公司 | Drive lifting device of upper wheel rim and control method of drive lifting |
| CN103552955A (en) * | 2013-10-25 | 2014-02-05 | 宇环数控机床股份有限公司 | Servo control and drive lift-and-turn compound motion mechanism |
| CN104795757A (en) * | 2015-04-29 | 2015-07-22 | 裘润波 | Solar-driven power tower maintenance equipment and application method thereof |
| CN104795763A (en) * | 2015-04-29 | 2015-07-22 | 毛玲波 | Power tower maintenance device with heat radiation and shock resistance functions and using method thereof |
| CN105108557A (en) * | 2015-09-23 | 2015-12-02 | 昆山利玛赫自动化科技有限公司 | High-stability lifting mechanism |
| CN105386171A (en) * | 2015-12-04 | 2016-03-09 | 晋中经纬泓鑫机械有限公司 | Lifting driving method and device |
| CN107740191A (en) * | 2017-12-01 | 2018-02-27 | 浙江海洋大学 | A kind of annealing device |
-
2010
- 2010-09-01 CN CN2010205130225U patent/CN201890753U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103091039A (en) * | 2011-10-27 | 2013-05-08 | 软控股份有限公司 | Drive lifting device of upper wheel rim and control method of drive lifting |
| CN103552955A (en) * | 2013-10-25 | 2014-02-05 | 宇环数控机床股份有限公司 | Servo control and drive lift-and-turn compound motion mechanism |
| CN104795757A (en) * | 2015-04-29 | 2015-07-22 | 裘润波 | Solar-driven power tower maintenance equipment and application method thereof |
| CN104795763A (en) * | 2015-04-29 | 2015-07-22 | 毛玲波 | Power tower maintenance device with heat radiation and shock resistance functions and using method thereof |
| CN105108557A (en) * | 2015-09-23 | 2015-12-02 | 昆山利玛赫自动化科技有限公司 | High-stability lifting mechanism |
| CN105386171A (en) * | 2015-12-04 | 2016-03-09 | 晋中经纬泓鑫机械有限公司 | Lifting driving method and device |
| CN105386171B (en) * | 2015-12-04 | 2018-06-26 | 晋中经纬泓鑫机械有限公司 | A kind of lifting driving method and device |
| CN107740191A (en) * | 2017-12-01 | 2018-02-27 | 浙江海洋大学 | A kind of annealing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110706 Termination date: 20130901 |