CN202418470U - Connecting rod speed transformation device for punch equipment - Google Patents
Connecting rod speed transformation device for punch equipment Download PDFInfo
- Publication number
- CN202418470U CN202418470U CN2011205229860U CN201120522986U CN202418470U CN 202418470 U CN202418470 U CN 202418470U CN 2011205229860 U CN2011205229860 U CN 2011205229860U CN 201120522986 U CN201120522986 U CN 201120522986U CN 202418470 U CN202418470 U CN 202418470U
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- CN
- China
- Prior art keywords
- connecting rod
- clutch
- bent axle
- drives
- speed change
- 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
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Abstract
The utility model relates to a connecting rod speed transformation device for punch equipment, relates to the machinery field, and comprises a motor, a belt wheel, a fly wheel, a clutch, a bent shaft and a sliding block, wherein the motor drives the fly wheel through the belt wheel, the fly wheel drives the clutch, the clutch drives the bent shaft, the bent shaft drives the sliding block, and the connecting rod speed transformation device is arranged between the clutch and the bent shaft. According to the connecting rod speed transformation device for the punch equipment, by means of the misalignment of a bent shaft connecting point and a flange plate center, a driving connecting rod drives a driven connecting rod to drive the bent shaft to rotate, the distance of movement trail of the driving connecting rod from the bent shaft connecting point prolongs the sliding block stay time at a lower dead center; the flange plate can be suitable for different punch equipment by adjusting the size of the hollow diameter of the flange plate; the stay time of the sliding block lower dead center can be adjusted by reasonably arranging the position of the bent shaft connecting point in the flange plate, and corresponding time can be eventually adjusted according to time requirements of different workpieces, and the quality of products is improved.
Description
Technical field
The utility model relates to mechanical field, is specifically related to a kind of connecting rod speed change gear that can control punch press bent axle movement velocity.
Background technique
Punching apparatus is a kind of press work equipment that is applied to sheet-metal press working, punching, blanking, crooked flanging and shallow stretching, and stamping part all is widely used in industries such as wrist-watch, toy, tableware, telecommunication apparatus, instrument and apparatus, motor, electrical equipment, tractor and automobile making, haberdashery and hardware, wireless.
Punching apparatus be a kind of be the transmission device of groundwork mode with punching press power, generally include motor, clutch, flywheel, connecting rod, bent axle and slide block.During work, motor drives flywheel and clutch motion through drivign belt, and clutch is through connecting rod drive bent axle, and the motion of bent axle drives slide block workpiece is done manual work.What connecting rod produced in this process is simple harmonic motion, the reciprocatory motion that bent axle produces, and slide block generally is moving up and down of Vertical direction, the workpiece that need process is located in the lower dead center place of slide block movement.Because motor generally is to drive crankshaft operation with uniform velocity, the speed and the time of an angle of the every rotation of bent axle are identical, and the distance of slider displacement also can be identical simultaneously.Therefore crankshaft rotating angle and the relativeness of slide position are with regard to the displacement stroke as sinusoidal curve.Because the slide block practical function is merely the place, final position of its motion in the zone of workpiece; Be that its operation point only is the trough place of sinusoidal curve bottom, slide block is all the same long in the time that the no working state of top dead center and working state in lower dead center stop, and needs the workpiece of processing relatively; Some workpiece needs the slide block waiting time long; So that workpiece is processed for a long time, prevent the fast quick-recovery after the workpiece resiliently deformable, reduced the quality of shaping workpiece.Some workpiece needs process time short again, with the high temperature of avoiding slide block to act on generation for a long time workpiece or mould is produced damage.Therefore how controlling the work waiting time of slide block in lower dead center, is the key that improves workpiece quality.
The model utility content
For the slide block of control punching apparatus in the waiting time of operation point, the speed that the utility model provides a kind of connecting rod means that can produce variable motion to change bent axle motion, thereby the connecting rod speed change gear of control slide block movement speed.Concrete scheme is following: a kind of connecting rod speed change gear of punching apparatus, comprise motor, belt pulley, flywheel, clutch, bent axle and slide block, and wherein motor drives flywheel through belt pulley; Flywheel drives clutch, and clutch drives bent axle, and bent axle drives slide block; It is characterized in that, the connecting rod speed change gear is installed between said clutch and the bent axle, said connecting rod speed change gear comprises driving gear; With the driven gear of driving gear engagement, said driving gear is connected with the output shaft of clutch through the center of circle, and the driven gear inner ring is movably arranged on the flange plate; The side of said driven gear is movably installed with drive connecting rod; The other end of drive connecting rod flexibly connects a passive connecting rod, and the other end of passive connecting rod is fixedly connected an end of bent axle, and said passive connecting rod does not overlap with the center of circle of flange plate with the tie point of bent axle.
Another preferred version of the utility model: adopt pin to be connected between said drive connecting rod and the passive connecting rod.
Another preferred version of the utility model: said driving gear is parallel with flywheel with driven gear.
Another preferred version of the utility model: the length of said passive connecting rod is greater than the length of drive connecting rod.
Another preferred version of the utility model: said drive connecting rod and passive connecting rod are installed in relative clutch one side of driven gear.
Another preferred version of the utility model: said bent axle passes flange plate and is connected with passive connecting rod.
Another preferred version of the utility model: the top that the tie point of said bent axle and passive connecting rod is positioned at the flange plate center of circle is on the position of relative slide block when being positioned at lower dead center.
This programme utilizes the bent axle tie point not overlap with the flange plate center of circle; Make drive connecting rod spur passive connecting rod and drive crankshaft rotating, the drive connecting rod movement locus is far and near from the bent axle tie point, has just formed the different effect of time that slide block stops when top dead center and lower dead center; The size of the hollow diameter of adjustment flange plate; Just can be applied on the different punching apparatus, the position of flange plate inside crankshaft tie point rationally is set, just can realize the adjustment of lower dead center waiting time length; Finally reach according to the time requirement of different workpieces and process the corresponding time, improve the quality of product.The length of adjustment drive connecting rod and passive connecting rod is than the adjustment that can also realize the bent axle rotational velocity.
Description of drawings
The punch press of Fig. 1 the utility model connects schematic representation.
Fig. 2 the utility model connecting rod speed change gear schematic representation.
Drive connecting rod and passive link motion principle schematic in Fig. 3 the utility model.
Embodiment
As shown in Figure 1, motor 1 work drives belt pulley 2 rotations, and belt pulley 2 drives flywheel 4 rotations through belt 3; Flywheel 4 drives clutch 5 rotations; And the output shaft 6 of clutch 5 is connected with the connecting rod speed change gear, thus the motion of drivening rod speed change gear, and the connecting rod speed change gear drives bent axle 11 motions; And bent axle 11 drives 9 pairs of workpiece workmanships of slide block; Accomplish entire work process, wherein connecting rod speed change gear uniform motion that clutch is transmitted is transformed into non-uniform movement and passes to bent axle, thereby realizes the variation of slide block relative velocity.
As shown in Figure 2; Technological scheme connecting rod speed change gear of the present invention comprises a driving gear 14, a driven gear 13; Parallel and the center of circle of driving gear 14 and flywheel 4 is fixedly connected with the output shaft 6 of clutch; Driven gear 13 is movably arranged on the hollow flange plate 12 and with driving gear 14 and meshes, and on the side circumference of relative clutch one side of driven gear, utilizes drive connecting rod 8 of dowel fixes, and the other end utilization pin of drive connecting rod connects a passive connecting rod 7; One end of bent axle 11 is penetrated by the opposing side in clutch of the hollow internal diameter of flange plate 12, is fixedly connected with the movable end of passive connecting rod 7.
When the connecting rod speed change gear moves; Driving gear 14 moves with uniform velocity under the output shaft 6 of clutch drives; Simultaneously driving gear drives driven gear 13 and also moves with uniform velocity, and is movably connected in the also movement therewith of drive connecting rod 8 on the driven gear this moment, and the motion of drive connecting rod 8 spurs passive connecting rod 7 accompany movements; And then drive the bent axle 11 be fixed on the passive connecting rod the other end and begin to rotate; Bent axle 11 does not overlap with the center of circle of flange plate 12 with the tie point of passive connecting rod 7, so the movement locus of drive connecting rod is a circular movement at the uniform velocity, and the movement locus of passive connecting rod will along with and drive connecting rod between angle variation and produce different speed; Thereby changing appears in the change speed that makes bent axle; The length of the drive connecting rod in this programme is less than the length of passive connecting rod, and the tie point of bent axle and passive connecting rod is positioned at the top in the flange plate center of circle.
As shown in Figure 3, the working principle of present technique scheme is following: the immovable point O on the gear 13 of uniform rotation
2Constant speed is arranged.Computational process is following:
V
1＝w
1·O
1O
2
V
2＝V
1cos?α
1
V
3＝V
2cos?α
2
w
4＝V
3/O
3O
4
Solve: w
4=w
1O
1O
2Cos α
1Cos α
2/ O
3O
4
W wherein
1, O
1O
2, O
3O
4Be definite value, but because O
2O
4Bottom dead center position is maximum in the drawings, when up moving, and O
2O
4Reduce (↓), ∠ O
2O
3O
4↓, all the other each angles change as shown in Figure 3, i.e. α
1, α
2All diminish cos α
1Cos α
2Becoming big, also is w
4↑.When top dead center position, O
2O
4Minimum, w
4Maximum; And when top dead center position, O
2O
4Maximum, w
4Minimum.
Also can find out according to top formula; The length ratio of the size of the hollow internal diameter of flange plate, drive connecting rod and passive connecting rod, the tie point position of bent axle all can influence the work of slide block; Can adjust the length of the cycle period of slide block movement like the size of hollow internal diameter; Length is than the rotational velocity that can adjust bent axle, and the position of tie point can prolong or shorten the operating time of slide block in lower dead center, therefore rationally adjusts above-mentioned three factors as required; Can obtain different workpieces different working standard, to guarantee the quality of final products.
Claims (7)
1. the connecting rod speed change gear of a punching apparatus comprises motor (1), belt pulley (2), flywheel (4), clutch (5), bent axle (11) and slide block (9), and wherein motor (1) drives flywheel (4) through belt pulley (2); Flywheel (4) drives clutch (5), and clutch (5) drives bent axle (11), and bent axle (11) drives slide block (9); It is characterized in that; Between said clutch (5) and the bent axle (11) the connecting rod speed change gear is installed, said connecting rod speed change gear comprises driving gear (14), with the driven gear (13) of driving gear engagement; Said driving gear is connected with the output shaft (6) of clutch through the center of circle; The driven gear inner ring is movably arranged on the flange plate (12), and the side of said driven gear is movably installed with drive connecting rod (8), and the other end of drive connecting rod flexibly connects a passive connecting rod (7); The other end of passive connecting rod (7) is fixedly connected an end of bent axle (11), and said passive connecting rod does not overlap with the center of circle of flange plate with the tie point of bent axle.
2. the connecting rod speed change gear of a kind of punching apparatus as claimed in claim 1 is characterized in that, adopts pin to be connected between said drive connecting rod (8) and the passive connecting rod (7).
3. the connecting rod speed change gear of a kind of punching apparatus as claimed in claim 1 is characterized in that, said driving gear (14) is parallel with flywheel (4) with driven gear (13).
4. the connecting rod speed change gear of a kind of punching apparatus as claimed in claim 1 is characterized in that, the length of said passive connecting rod (7) is greater than the length of drive connecting rod (8).
5. the connecting rod speed change gear of a kind of punching apparatus as claimed in claim 1 is characterized in that, said drive connecting rod (8) and passive connecting rod (7) are installed in driven gear (13) clutch (5) one sides relatively.
6. the connecting rod speed change gear of a kind of punching apparatus as claimed in claim 5 is characterized in that, said bent axle (11) passes flange plate (12) and is connected with passive connecting rod (7).
7. the connecting rod speed change gear of a kind of punching apparatus as claimed in claim 6 is characterized in that, the top that the tie point of said bent axle (11) and passive connecting rod (7) is positioned at the flange plate center of circle is on the position of relative slide block when being positioned at lower dead center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205229860U CN202418470U (en) | 2011-12-14 | 2011-12-14 | Connecting rod speed transformation device for punch equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205229860U CN202418470U (en) | 2011-12-14 | 2011-12-14 | Connecting rod speed transformation device for punch equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202418470U true CN202418470U (en) | 2012-09-05 |
Family
ID=46743240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205229860U Expired - Fee Related CN202418470U (en) | 2011-12-14 | 2011-12-14 | Connecting rod speed transformation device for punch equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202418470U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103591242A (en) * | 2013-11-26 | 2014-02-19 | 常州纺织服装职业技术学院 | Transmission device for net trimming machine |
-
2011
- 2011-12-14 CN CN2011205229860U patent/CN202418470U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103591242A (en) * | 2013-11-26 | 2014-02-19 | 常州纺织服装职业技术学院 | Transmission device for net trimming machine |
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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: 20120905 Termination date: 20131214 |