CN105013995A - Swinging die press achieving rose linear movement locus - Google Patents

Abstract

The invention discloses a swinging die press achieving a rose linear movement locus. The swinging die press comprises an inner eccentric bushing and an outer eccentric bushing. The swinging die press is characterized in that the eccentric distance e1 of the inner eccentric bushing is not equal to the eccentric distance e2 of the outer eccentric bushing, and the sum of e1 and e2 is equal to 2*e, wherein e is the eccentric distance of the inner and outer eccentric bushings under the condition that the eccentric distance of the inner eccentric bushing is equal to that of the outer eccentric bushing, and e1 and e2 satisfy a first relational expression shown in the specification when the angular speed |omega1| of the inner eccentric bushing is larger than the angular speed |omega2| of the outer eccentric bushing, and satisfy a second relational expression shown in the specification when the angular speed |omega1| is smaller than the angular speed |omega2|. By means of the swinging die press achieving the rose linear movement locus, vibration produced in the working process of the rose linear swinging die press can be remarkably reduced.

Description

Realize the rotary forging machine of curve movement locus

Technical field

The present invention relates to a kind of rotary forging machine, particularly relate to a kind of rotary forging machine realizing curve movement locus.

Background technology

Pendulum rolling is successive partial plastic forming new technology, have laborsaving, impact little, vibrate little, noise is little, energy-saving material-saving and Product Precision advantages of higher, is widely used in numerous industrial circles such as machinery, automobile, electrical equipment, instrument, hardware & tools.

Curve rotary forging machine can realize curve movement locus due to yaw, rotary roll is suitable for have the part of profile of tooth, but, inside and outside the rotary forging machine realizing curve movement locus of design both at home and abroad at present, eccentric bushing eccentric throw is equal, and when inside and outside eccentric bushing eccentric throw is equal, during the work of curve rotary forging machine, fuselage can produce larger vibration, greatly inhibits application and the development of curve rotary forging machine.

Summary of the invention

The object of the present invention is to provide a kind of rotary forging machine realizing curve movement locus, it significantly can reduce vibration when curve rotary forging machine works.

The technical solution adopted for the present invention to solve the technical problems is:

A kind of rotary forging machine realizing curve movement locus is provided, comprises interior eccentric bushing and outer eccentric bushing, described interior eccentric bushing eccentric distance e ₁with outer eccentric bushing eccentric distance e ₂unequal, and e ₁+ e ₂=2e, e are the eccentric throw of inside and outside eccentric bushing in the equal situation of inside and outside eccentric bushing eccentric throw, e ₁and e ₂meet following relational expression:

When interior eccentric bushing angular speed | ω ₁| be greater than outer eccentric bushing angular speed | ω ₂| time,

When interior eccentric bushing angular speed | ω ₁| be less than outer eccentric bushing angular speed | ω ₂| time,

By technique scheme, ω ₁=4 π rad/s, ω ₂=-14/3 π rad/s, e ₁+ e ₂=20mm, obtains interior eccentric bushing eccentric distance e thus ₁with outer eccentric bushing eccentric distance e ₂pass be e ₁/ e ₂> 1.72.

By technique scheme, e ₁=14mm, e ₂=6mm.

The beneficial effect that the present invention produces is: this invention ensures that inside and outside eccentric bushing eccentric throw is with certain, i.e. e ₁+ e ₂=2e, not change in the integrally-built situation of existing rotary forging machine, the eccentric throw of the inside and outside eccentric bushing of a change, just can effectively reduce the vibration during work of curve rotary forging machine, have simple, efficient advantage, and production cost is low.

Accompanying drawing explanation

Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:

Fig. 1 is the location diagram of inside and outside eccentric bushing in the embodiment of the present invention.

Fig. 2 is the eccentric polar plot of inside and outside eccentric bushing in the embodiment of the present invention.

Fig. 3 is the schematic diagram that the embodiment of the present invention realizes curve track.

Fig. 4 is the schematic diagram that existing rotary forging machine realizes curve track.

Fig. 5 is the structural representation of interior eccentric bushing in the embodiment of the present invention.

Fig. 6 is the side view of Fig. 5.

Fig. 7 is the structural representation of embodiment of the present invention China and foreign countries eccentric bushing.

Fig. 8 is the side view of Fig. 7.

Fig. 9 is the structural representation of shaking device in the embodiment of the present invention.

In figure: 1-bulb, 2-self-aligning roller bearing, eccentric bushing in 3-, the single-row needle bearing of 4-, the outer eccentric bushing of 5-, the outer eccentric bushing central point of O-, O ₁-Nei eccentric bushing central point, O ₂-yaw central point.

Detailed description of the invention

In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.

As shown in Fig. 1-Fig. 9, a kind of rotary forging machine realizing curve movement locus, comprise bulb 1, interior eccentric bushing 3 and outer eccentric bushing 5, bulb 1 is arranged on the inner chamber of interior eccentric bushing 3, self-aligning roller bearing 2 is provided with between bulb 1 and interior eccentric bushing 3, interior eccentric bushing 3 is arranged on the inner chamber of outer eccentric bushing 5, is provided with single-row needle bearing 4 between interior eccentric bushing 3 and outer eccentric bushing 5, interior eccentric bushing eccentric distance e ₁with outer eccentric bushing eccentric distance e ₂unequal, and e ₁+ e ₂=2e, e are the eccentric throw of inside and outside eccentric bushing in the equal situation of inside and outside eccentric bushing eccentric throw, e ₁and e ₂meet following relational expression:

When interior eccentric bushing angular speed | ω ₁| be greater than outer eccentric bushing angular speed | ω ₂| time,

When interior eccentric bushing angular speed | ω ₁| be less than outer eccentric bushing angular speed | ω ₂| time,

In a preferred embodiment of the invention, to parameter assignment, ω ₁=4 π rad/s, ω ₂=-14/3 π rad/s, e ₁+ e ₂=20mm, obtains interior eccentric bushing eccentric distance e thus ₁with outer eccentric bushing eccentric distance e ₂pass be e ₁/ e ₂> 1.72, gets e ₁=14mm, e ₂=6mm.

As shown in Fig. 1-Fig. 9, in the embodiment of the present invention, the method for designing of inside and outside eccentric bushing specifically comprises the following steps:

S1, position equation according to yaw central point $\left\{\begin{array}{c}x=e_1{\mathrm{cos\ω}}_{1}t+e_2{\mathrm{cos\ω}}_{2}t\\ y=e_1{\mathrm{sin\ω}}_{1}t+e_2{\mathrm{sin\ω}}_{2}t\end{array}\right.,$ Eccentric throw and yaw central point acceleration a and a' under eccentric throw such as or not to calculate respectively,

$\left\{\begin{array}{c}a=e\sqrt{\{{({{\mathrm{\ω}}_1}^2+{{\mathrm{\ω}}_2}^2)}^2+2{{\mathrm{\ω}}_1}^2{{\mathrm{\ω}}_2}^2\[cos({\mathrm{\ω}}_{1}t-{\mathrm{\ω}}_{2}t)-1\]\}},e_1=e_2\\ a^{\′}=\sqrt{{(e_1{{\mathrm{\ω}}_1}^2+e_2{{\mathrm{\ω}}_2}^2)}^2+2e_1{e}_2{{\mathrm{\ω}}_1}^2{{\mathrm{\ω}}_2}^2\[cos({\mathrm{\ω}}_{1}t-{\mathrm{\ω}}_{2}t)-1\]},e_1\≠e_2\end{array}\right.---\left(1\right),$

Wherein, e ₁for interior eccentric bushing eccentric throw, e ₂for outer eccentric bushing eccentric throw, and e ₁+ e ₂=2e, ω ₁for interior eccentric bushing angular speed, ω ₂for outer eccentric bushing angular speed;

S2, by the eccentric throws such as formula (1) release and the yaw central point acceleration change scope under eccentric throw such as not | a| and | a ' |, amplitude A and A',

$\left\{\begin{array}{c}\left|a\right|\∈\[e\left|{{\mathrm{\ω}}_1}^2-{{\mathrm{\ω}}_2}^2\right|,e\left({{\mathrm{\ω}}_1}^2+{{\mathrm{\ω}}_2}^2\right)\],A=2e{\left|{{\mathrm{\ω}}_1}^2,{{\mathrm{\ω}}_2}^2\right|}_{\min },e_1=e_2\\ \left|a^{\′}\right|\∈\[\left|e_1{{\mathrm{\ω}}_1}^2-e_2{{\mathrm{\ω}}_2}^2\right|,\left(e_1{{\mathrm{\ω}}_1}^2+e_2{{\mathrm{\ω}}_2}^2\right)\],A^{\′}=2{\left|e_1{{\mathrm{\ω}}_1}^2,e_2{{\mathrm{\ω}}_2}^2\right|}_{\min },e_1\≠e_2\end{array}\right.---\left(2\right);$

S3, from formula (2), in order to reduce vibration during rotary forging machine work, needing to reduce to put the acceleration that runs in journey and amplitude, namely meeting following relational expression

$\left\{\begin{array}{c}{\left|a^{\&prime;}\right|}_{max}<{\left|a\right|}_{max}\\ A^{\&prime;}<A\end{array}\right.---\left(3\right);$

S4, when satisfying condition | a ' | _max< | a| _maxtime, by relational expression can be released

(e _1-e ₂)(ω ₁ ²-ω ₂ ²)＜0 (4)；

S5, under condition A'< A, when interior eccentric bushing angular speed is greater than outer eccentric bushing angular speed, namely | ω ₁| > | ω ₂| time, can e be obtained by relational expression (4) ₁< e ₂, now A=2e ω ₂ ²if, A'=2e ₂ω ₂ ², due to e ₂> e, then A' must be greater than A, so A'=2e ₁ω ₁ ², inside and outside eccentric bushing eccentric throw demand fulfillment relational expression can be released by A'< A

$\frac{2e_1}{e_1+e_2}<\frac{{{\mathrm{\&omega;}}_2}^2}{{{\mathrm{\&omega;}}_1}^2}---\left(5\right),$

When interior eccentric bushing angular speed is less than outer eccentric bushing angular speed, namely | ω ₁| < | ω ₂| time, can e be obtained by relational expression (4) ₁> e ₂, now A=2e ω ₁ ²if, A'=2e ₁ω ₁ ², due to e ₁> e, then A' must be greater than A, so A'=2e ₂ω ₂ ², inside and outside eccentric bushing eccentric throw demand fulfillment relational expression can be released by A'< A

$\frac{2e_2}{e_1+e_2}<\frac{{{\mathrm{\&omega;}}_1}^2}{{{\mathrm{\&omega;}}_2}^2}---\left(6\right).$

In sum, as long as we design inside and outside eccentric bushing eccentric throw meet relational expression (5) or (6), the object of vibration during the rotary forging machine work reducing to realize curve movement locus just can be reached.

Parameter assignment by relational expression (5) or (6): ω ₁=4 π rad/s, ω ₂=14/3 π rad/s, e ₁+ e ₂=20mm, can obtain the relational expression that inside and outside eccentric bushing eccentric throw will meet thus is e ₁/ e ₂> 1.72, gets e ₁=14mm, e ₂=6mm, the curve track obtained thus as shown in Figure 3.

Should be understood that, for those of ordinary skills, can be improved according to the above description or convert, and all these improve and convert the protection domain that all should belong to claims of the present invention.

Claims (3)

1. realize a rotary forging machine for curve movement locus, comprise interior eccentric bushing and outer eccentric bushing, it is characterized in that, described interior eccentric bushing eccentric distance e ₁with outer eccentric bushing eccentric distance e ₂unequal, and e ₁+ e ₂=2e, e are the eccentric throw of inside and outside eccentric bushing in the equal situation of inside and outside eccentric bushing eccentric throw, e ₁and e ₂meet following relational expression:

When interior eccentric bushing angular speed | ω ₁| be greater than outer eccentric bushing angular speed | ω ₂| time,

When interior eccentric bushing angular speed | ω ₁| be less than outer eccentric bushing angular speed | ω ₂| time,

2. rotary forging machine according to claim 1, is characterized in that, ω ₁=4 π rad/s, ω ₂=-14/3 π rad/s, e ₁+ e ₂=20mm, obtains interior eccentric bushing eccentric distance e thus ₁with outer eccentric bushing eccentric distance e ₂pass be e ₁/ e ₂> 1.72.

3. rotary forging machine according to claim 2, is characterized in that, e ₁=14mm, e ₂=6mm.