CN204160196U - A kind of automatic centering clamp device based on worm and wormwheel and crank connecting link transmission - Google Patents
A kind of automatic centering clamp device based on worm and wormwheel and crank connecting link transmission Download PDFInfo
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- CN204160196U CN204160196U CN201420545223.1U CN201420545223U CN204160196U CN 204160196 U CN204160196 U CN 204160196U CN 201420545223 U CN201420545223 U CN 201420545223U CN 204160196 U CN204160196 U CN 204160196U
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- worm
- connecting link
- crank connecting
- gear
- wormwheel
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Abstract
The utility model discloses a kind of automatic centering clamp device based on worm and wormwheel and crank connecting link transmission, comprise at least two worm gears, described each worm gear is all hinged with crank connecting link, the end of described crank connecting link is all fixedly connected with pressure head, described pressure head drives crank connecting link to make pressure head clamping work pieces by the rotation of worm gear, the worm drive that described each worm gear engages with it respectively by one, and each worm screw is provided with driven gear, described each driven gear is all engaged on same driving gear.Be symmetrical arranged by worm and wormwheel and toggle, the power output equal and opposite in direction that pressure head is produced, direction are contrary, thus realize automatic centering centering, and this can shorten the time of adjustment fixture, improve work pieces process efficiency, reach saving of labor, save time, efficiently.
Description
Technical field
The utility model relate to a kind of automatic centering clamp device based on worm and wormwheel and crank connecting link transmission, belongs to field of mechanical technique.
Background technology
Along with the progress of science and technology, fixture develops into technological equipment covering extensive fields from a kind of aid, and it is the indispensable parts of machining.Machine tool technology at a high speed, efficient, precision, compound, intelligence, environmental protection future development drive under, clamp technology is just towards high-precision, efficient, module, combination, general, economic future development.The power source of fixture has hand-operated clamping, pneumatic pinch, hydraulic clamp and electronic clamping etc.The advantage of manual is environmental protection, but it has a fatal shortcoming, namely due to staff force limited, causes its clamping force can not be very large.Air pressure and hydraulically operated fixture are with hydraulic oil or compressed air for working media carries out energy transferring and control, and its energy transfer and conversion intermediate link is many, and route is long, and energy loss is larger.In addition, air pressure and hydraulic drive also can cause environmental pollution because of the leakage of driving medium hydraulic oil or Compressed Gas and volatilization, and the leakage of hydraulic oil also can motion-affecting stationarity and correctness, makes hydraulic drive can not ensure strict gearratio.Pure crawl fixture in electric fixture exists that intermediary agency's force amplifying function is little, volume is large, locus is not easy change and needs the shortcomings such as motor power (output) is large.
Utility model content
The utility model discloses a kind of automatic centering clamp device based on worm and wormwheel and crank connecting link transmission, be symmetrical arranged by worm and wormwheel and toggle, the power output equal and opposite in direction that pressure head is produced, direction are contrary, thus realize automatic centering centering, this can shorten the time of adjustment fixture, improve work pieces process efficiency, reach saving of labor, save time, efficiently.
In order to solve the problems of the technologies described above, the technical scheme that the utility model adopts is:
A kind of automatic centering clamp device based on worm and wormwheel and crank connecting link transmission, it is characterized in that: comprise at least two worm gears, described each worm gear is all hinged with crank connecting link, the end of described crank connecting link is all fixedly connected with pressure head, described pressure head drives crank connecting link to make pressure head clamping work pieces by the rotation of worm gear, the worm drive that described each worm gear engages with it respectively by one, and each worm screw is provided with driven gear, described each driven gear is all engaged on same driving gear, and described driving gear is driven by drive unit.
Aforesaid a kind of automatic centering clamp device based on worm and wormwheel and crank connecting link transmission, is characterized in that: described for driving the drive unit of described driving gear to be reducing motor.
Aforesaid a kind of automatic centering clamp device based on worm and wormwheel and crank connecting link transmission, is characterized in that: the quantity of described worm gear is two, is symmetricly set on the upper and lower of described workpiece.
Aforesaid a kind of automatic centering clamp device based on worm and wormwheel and crank connecting link transmission, is characterized in that: the quantity of described worm gear is three, be mutually the angle of 120 °, and the axle center of each worm gear is equal to the distance of workpiece between described three worm gears.
Aforesaid a kind of automatic centering clamp device based on worm and wormwheel and crank connecting link transmission, it is characterized in that: the quantity of described worm gear is four, angle in 90 ° mutually between described four worm gears, and the axle center of each worm gear is equal to the distance of workpiece.
Aforesaid a kind of automatic centering clamp device based on worm and wormwheel and crank connecting link transmission, is characterized in that: described worm screw is single start worm, and lead angle is less than 3.5 °.
The beneficial effects of the utility model are:
1, utilize the self-lock mechanism of worm and worm gear, keep clamping force during clamped condition, do not need additional energy source to input, reliable operation, reduce the labour intensity of workman, there is not environmental pollution, green degree is high;
2, by worm and wormwheel, crank connecting link and gear-driven three reinforcements of connecting, can obtain large force increasing ratio, reinforcement effect is remarkable; Simultaneously have nonlinear characteristic between the power output of toggle and output displacement, can regulate according to actual needs, pressure head fast feed when pressure angle is large, a pressure angle hour clamping force increases sharply;
3, toggle has good direction flexibility, can require the output that rearrange device, realize the requirement of multi-direction clamping and clamping direction conversion at low cost, expand gripping range according to clamping;
4, utilize upper and lower secondary series connection reinforcement electric clamping device to be arranged symmetrically with, the power output equal and opposite in direction that pressure head is produced, direction on the contrary, thus realize automatic centering centering;
5, electric clamping device directly uses electrical energy drive, and energy transferring route is short, and energy conversion device is few, mechanism's concision and compact, and energy utilization rate is high, and overall cost reduces greatly.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of automatic centering clamp device based on worm and wormwheel and crank connecting link transmission of the utility model.
Wherein, 1, reducing motor, 2, driving gear, 3, upper driven gear, 4, lower driven gear, 5, upper worm screw, 6, lower worm screw, 7, upper worm gear, 8, lower worm gear, 9, upper crank connecting link, 10, lower crank connecting rod, 11, workpiece, 12, seaming chuck, 13, push-down head.
Detailed description of the invention
Below in conjunction with Figure of description, the utility model is further described.
Embodiment 1
As shown in Figure 1, a kind of automatic centering clamp device based on worm and wormwheel and crank connecting link transmission, comprise the upper worm gear 7 and lower worm gear 8 that are symmetricly set on workpiece 11 upper and lower, described each worm gear is all hinged with crank connecting link, the end of upper crank connecting link 9 is connected with seaming chuck 12, the end of lower crank connecting rod 10 is connected with push-down head 13, and described upper and lower two pressure heads drive crank connecting link to make pressure head clamping work pieces 11 respectively by the rotation of upper and lower worm gear.Wherein, the upper worm screw 5 that upper worm gear 7 is engaged with it by one drives, the lower worm screw 6 that lower worm gear 8 is engaged with it by one drives, and upper and lower two worm screws are respectively arranged with driven gear 3 and lower driven gear 4, described two driven gears are all engaged on a driving gear 2, and this driving gear 2 is driven by reducing motor 1.
After reducing motor 1 drives, output torque drives driving gear 2 to rotate, driving gear 2 by gears meshing first by power transmission on two driven gears and upper and lower worm screw, now mechanism has carried out the amplification of first time power; Upper worm screw 5 is meshed with upper worm gear 7 thus drives worm gear 7 to rotate clockwise, and lower worm screw 6 is meshed with lower worm gear 8 and drives lower worm gear to rotate counterclockwise, and now mechanism has carried out the amplification of second time power; Then, upper and lower worm gear drives the crank connecting link be up and down hinged on respective worm gear to swing, make that crank connecting link 9 carries out linear downward motion, lower crank connecting rod 10 carries out straight line and moves upward, upper push-down head is close respectively to outer surface of workpiece, now because the angular effect of upper and lower crank connecting link achieves the amplification of third time power; Finally, the power output of upper push-down head acts on outer surface of workpiece respectively, completes upper and lower pinching action.
If now reducing motor stops operating, whole clamping device is still in self-locking state, and namely in whole work pieces process, device can remain the clamping force up and down of workpiece.After work pieces process completes, reducing motor 1 accesses reverse electrical source, and now go up worm screw 5 and just drive worm gear 7 to rotate counterclockwise, the upper crank connecting link 9 be hinged on worm gear 7 carries out straight line and moves upward; Lower worm screw 6 just drives lower worm gear 8 to rotate clockwise, and the lower crank connecting rod 10 be hinged on lower worm gear 8 carries out linear downward motion, thus unclamps workpiece.
The worm screw adopted in the utility model is single start worm, and lead angle is less than 3.5 °, and lead angle is less, and self-locking is more reliable, and reinforcement effect is more remarkable.
Embodiment 2
The invention also discloses a kind of automatic centering clamp device based on worm and wormwheel and crank connecting link transmission, comprise three worm gears, the angle of 120 ° is mutually between three worm gears, and the axle center of each worm gear is equal to the distance of workpiece, described each worm gear is all hinged with crank connecting link, the end of described crank connecting link is all fixedly connected with pressure head, described pressure head drives crank connecting link to make pressure head clamping work pieces by the rotation of worm gear, each worm gear is by a worm drive engaged with it, and each worm screw is provided with driven gear, described each driven gear is all engaged on a driving gear, described driving gear is driven by reducing motor, wherein worm screw is single start worm, and lead angle is less than 3.5 °
The present embodiment 2(is not shown) difference unique relative to embodiment 1 be to have the worm gear that three are in 120 ° of angles, be convenient to the workpiece of stationary cylinder shape, thus expanding the scope of application of this clamping device, principle is identical with embodiment 1, does not repeat them here.
Embodiment 3
The invention also discloses a kind of automatic centering clamp device based on worm and wormwheel and crank connecting link transmission, comprise four worm gears, angle in 90 ° mutually between four worm gears, and the axle center of each worm gear is equal to the distance of workpiece, described each worm gear is all hinged with crank connecting link, the end of described crank connecting link is all fixedly connected with pressure head, described pressure head drives crank connecting link to make pressure head clamping work pieces by the rotation of worm gear, each worm gear is by a worm drive engaged with it, and each worm screw is provided with driven gear, described each driven gear is all engaged on a driving gear, described driving gear is driven by reducing motor, wherein worm screw is single start worm, and lead angle is less than 3.5 °
The present embodiment 3(is not shown) be the worm gear with four mutual angles in 90 ° relative to embodiment 1 and the unique difference of embodiment 2, be convenient to the workpiece large-scale to some be fixed from four direction, thus expand the scope of application and the clamping effect of this clamping device, principle and embodiment 1, embodiment 2 are identical, do not repeat them here.
In sum, a kind of automatic centering clamp device based on worm and wormwheel and crank connecting link transmission that the utility model provides, be symmetrical arranged by worm and wormwheel and toggle, the power output equal and opposite in direction that pressure head is produced, direction are contrary, thus realize automatic centering centering, this can shorten the time of adjustment fixture, improves work pieces process efficiency, reaches saving of labor, saves time, efficiently.
More than show and describe general principle of the present utility model, principal character and advantage.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and description just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is by appending claims and equivalent circle thereof.
Claims (6)
1. the automatic centering clamp device based on worm and wormwheel and crank connecting link transmission, it is characterized in that: comprise at least two worm gears, described each worm gear is all hinged with crank connecting link, the end of described crank connecting link is all fixedly connected with pressure head, described pressure head drives crank connecting link to make pressure head clamping work pieces by the rotation of worm gear, the worm drive that described each worm gear engages with it respectively by one, and each worm screw is provided with driven gear, described each driven gear is all engaged on same driving gear, and described driving gear is driven by drive unit.
2. a kind of automatic centering clamp device based on worm and wormwheel and crank connecting link transmission according to claim 1, is characterized in that: described for driving the drive unit of described driving gear to be reducing motor.
3. a kind of automatic centering clamp device based on worm and wormwheel and crank connecting link transmission according to claim 2, is characterized in that: the quantity of described worm gear is two, is symmetricly set on the upper and lower of described workpiece.
4. a kind of automatic centering clamp device based on worm and wormwheel and crank connecting link transmission according to claim 2, it is characterized in that: the quantity of described worm gear is three, be mutually the angle of 120 ° between described three worm gears, and the axle center of each worm gear is equal to the distance of workpiece.
5. a kind of automatic centering clamp device based on worm and wormwheel and crank connecting link transmission according to claim 2, it is characterized in that: the quantity of described worm gear is four, angle in 90 ° mutually between described four worm gears, and the axle center of each worm gear is equal to the distance of workpiece.
6., according to a kind of automatic centering clamp device based on worm and wormwheel and crank connecting link transmission in claim 3-5 described in any one, it is characterized in that: described worm screw is single start worm, and lead angle is less than 3.5 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420545223.1U CN204160196U (en) | 2014-09-23 | 2014-09-23 | A kind of automatic centering clamp device based on worm and wormwheel and crank connecting link transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420545223.1U CN204160196U (en) | 2014-09-23 | 2014-09-23 | A kind of automatic centering clamp device based on worm and wormwheel and crank connecting link transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204160196U true CN204160196U (en) | 2015-02-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420545223.1U Expired - Fee Related CN204160196U (en) | 2014-09-23 | 2014-09-23 | A kind of automatic centering clamp device based on worm and wormwheel and crank connecting link transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204160196U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104209781A (en) * | 2014-09-23 | 2014-12-17 | 苏州农业职业技术学院 | Automatic centering and clamping device based on transmission of worm and worm gears and crank connecting rods |
| CN110193770A (en) * | 2019-06-28 | 2019-09-03 | 吴廷福 | Polissoir is used in a kind of novel Hardware fitting processing |
-
2014
- 2014-09-23 CN CN201420545223.1U patent/CN204160196U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104209781A (en) * | 2014-09-23 | 2014-12-17 | 苏州农业职业技术学院 | Automatic centering and clamping device based on transmission of worm and worm gears and crank connecting rods |
| CN110193770A (en) * | 2019-06-28 | 2019-09-03 | 吴廷福 | Polissoir is used in a kind of novel Hardware fitting processing |
| CN110193770B (en) * | 2019-06-28 | 2020-12-04 | 赣州市诚博机械设备有限公司 | Novel polishing equipment for hardware fitting machining |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150218 Termination date: 20160923 |