CN210566078U - High-speed linear reciprocating motion mechanism - Google Patents

Abstract

The utility model discloses a high-speed straight reciprocating motion mechanism, including drive division and movable part, drive division top and power supply interlock, and power supply control drive division is rotatory around the axis, drive division bottom end face is provided with the round ball circle that uses the axle center as the centre of a circle, the ball circle includes a plurality of ball section and sets up the interval section between adjacent ball section, the ball section includes a plurality of drive ball that uses the axle center as centre of a circle align to grid installation, the ball groove that matches with the ball circle is seted up to movable part terminal surface, the ball groove includes a plurality of plane section and protruding section, plane section and protruding section respectively with ball section and interval section one-to-one, drive ball and the laminating of plane section tank bottom, protruding section tank bottom protrusion sets up, and the protrusion height is less than the height that drive ball exposes drive division bottom surface part. The utility model discloses simple structure, it is with very low costs, can carry out hypervelocity straight reciprocating motion, life is high, is applicable to various straight reciprocating motion scenes to improve the efficiency greatly.

Description

High-speed linear reciprocating motion mechanism

Technical Field

The utility model relates to a rotate accessory technical field, concretely relates to high-speed straight reciprocating motion mechanism.

Background

The high-speed reciprocating linear motion scene of the equipment such as a high-speed punch feeder and a high-speed opening and closing valve is widely existed, and the rapid clamping and loosening of a feeding workpiece and the rapid opening and closing of the valve are controlled through the high-speed reciprocating linear motion. The existing linear reciprocating mechanism is generally realized by adopting mechanisms such as an air cylinder, a servo motor screw rod and the like, the control of the linear reciprocating mechanism inevitably has switching between forward and reverse directions, the frequency of reciprocating linear motion is not high, and the service life and the precision of the moving mechanism are not high. With the popularization of equipment such as overspeed punch feeders and superspeed opening and closing valves, a motion mechanism with higher efficiency, lower cost and longer service life is required to realize linear reciprocating motion with higher stability and higher frequency.

Therefore, it is necessary to develop a new high-speed linear reciprocating mechanism.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high-speed straight reciprocating motion mechanism, this mechanism simple structure, the cost is very low, can carry out hypervelocity straight reciprocating motion, and life is high, is applicable to various straight reciprocating motion scenes to improve the efficiency greatly.

In order to realize the purpose, the technical scheme of the utility model is that:

a high-speed linear reciprocating mechanism comprises a driving part and a movable part, wherein the top end of the driving part is linked with a power source, the power source controls the driving part to rotate around the axis, a circle of ball ring taking the axis as the center of circle is arranged on the end surface of the bottom end of the driving part, the ball ring comprises a plurality of ball sections and spacing sections arranged between the adjacent ball sections, the ball sections comprise a plurality of driving balls which are uniformly arranged and installed by taking the axis as the center of a circle, one end face of the movable part is provided with a ball groove matched with the ball ring, the ball groove comprises a plurality of plane sections and convex sections, the plane section and the convex section are respectively in one-to-one correspondence with the ball section and the spacing section, the driving ball is jointed with the bottom of the plane section, the groove bottom of the protruding section is convexly arranged, and the protruding height is smaller than the height of the part, exposed out of the driving ball, of the bottom surface of the driving part.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a power supply control drive division is rotatory around the axis to the drive ball of control ball section slides on plane section and protruding section, when the drive ball slides to protruding section, the movable part is promoted downwards gradually by the drive ball, when the drive ball pastes with the protruding end of protruding section, the movable part accomplishes the biggest linear displacement, the displacement is protruding end tank bottom and plane section tank bottom difference in height of protruding section, later drive ball slides back to the plane section, the movable part resets, accomplish linear reciprocating motion, the movable part is fixed with the mechanism that needs high-speed linear motion, through turning into linear motion with rotary motion high efficiency, can realize linear reciprocating motion with high efficiency, greatly improve the efficiency;

2. the utility model only adopts the balls to transmit the linear driving force, the cost is very low, the structure is very simple, and the universality is strong;

3. the utility model directly converts the rotary motion of the power source into the linear reciprocating motion through one-time transmission, has very ingenious design, can reach very high linear reciprocating frequency, and meets the requirements of an ultra-high speed feeder, a high-speed switch valve and the like;

4. the utility model discloses a ball comes the transmission, effectively reduces the power loss, improves life simultaneously greatly.

The utility model discloses a further improvement scheme as follows:

furthermore, the middle part of the bottom of the protruding section groove protrudes downwards and extends to two ends to be connected with the bottom of the plane section groove.

Through adopting above-mentioned scheme, the tank bottom both ends and the plane section of protruding end are connected, and the middle part is salient, and is excessively level and smooth, is obstructed when avoiding driving the ball to slide, reduces power loss.

Furthermore, the interval section includes a plurality of support ball that uses the axle center as the centre of a circle align to grid the installation, support the ball with the laminating of the tank bottom protrusion end of protruding section.

By adopting the above scheme, the interval section sets up the support ball, and when the drive ball slided at the plane section, the tank bottom protrusion end laminating of support ball and protruding end guaranteed whole stress balance, and is excessively level and smooth.

Further, the drive portion bottom surface is equipped with mounting groove and card pad, the card pad is fixed the drive portion bottom surface will drive ball and support the ball card and establish in the mounting groove form the ball circle.

Furthermore, the outer ring surface of the clamping pad is uniformly provided with buckles, and the outer ring surface of the driving part is provided with clamping grooves matched with the buckles.

Further, the ball section and the spacing section have the same length.

By adopting the scheme, the lengths of the ball section and the spacing section are the same, when the driving balls all fall into the plane section, the supporting balls all fall into the convex section, and at the moment, the movable part is in an initial state; when the driving balls all fall into the convex sections, the supporting balls all fall into the plane sections, the movable part is in a push-out state at the moment, the driving part only needs to rotate by an angle equivalent to the sum of the radians of the ball sections and the radian of the spacing sections, one-time movement of the movable part can be completed, the switching speed of the movable part between the initial state and the push-out state can be increased, and therefore the efficiency of linear reciprocating motion is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 is a schematic structural diagram of a minimum displacement state according to an embodiment of the present invention.

Fig. 2 is a schematic diagram of a maximum displacement state structure according to an embodiment of the present invention.

Fig. 3 is a schematic structural diagram of a driving unit according to an embodiment of the present invention.

Fig. 4 is a schematic structural view of the movable portion according to the embodiment of the present invention.

Shown in the figure:

1. a drive section; 101. mounting grooves; 102. a card slot;

2. a movable portion;

3. a ball segment; 301. a drive ball;

4. a spacer section; 401. supporting the balls;

5. a ball groove; 501. a planar section; 502. a convex section;

6. a clamping pad; 601. and (5) buckling.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience of description and simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting.

Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

As shown in fig. 1-4, the high-speed linear reciprocating motion mechanism provided in this embodiment includes a driving portion 1 and a movable portion 2, a top end of the driving portion 1 is linked with a power source, the power source controls the driving portion 1 to rotate around an axis, and the power source may be any driving device that outputs a rotating action, such as a driving motor and a motor.

The end face of the bottom end of the driving part 1 is provided with a circle of ball ring taking the axis as the center of a circle, and the ball ring comprises two ball sections 3 and two spacing sections 4 arranged between the adjacent ball sections 3.

The ball segments 3 and the spacing segments 4 are the same length, both 90 degrees.

The ball section 3 comprises a plurality of driving balls 301 which are uniformly arranged and installed by taking the axis as the center of a circle, and the spacing section 4 comprises a plurality of supporting balls 401 which are uniformly arranged and installed by taking the axis as the center of a circle.

The bottom surface of the driving part 1 is provided with a mounting groove 101 and a clamping pad 6, the outer annular surface of the clamping pad 6 is uniformly provided with buckles 601, and the outer annular surface of the driving part 1 is provided with a clamping groove 102 matched with the buckles 601; the clamping pad 6 is fixed on the bottom surface of the driving part 1 through the matching of the buckle 601 and the clamping groove 102, and the driving ball 301 and the supporting ball 401 are clamped in the mounting groove 101 to form a ball ring.

The bottom end of the movable part 2 is fixed on a part which needs to perform high-speed linear reciprocating motion, the top surface of the movable part 2 is provided with a ball groove 5 matched with a ball ring, the ball groove 5 comprises two plane sections 501 and two protruding sections 502, and the plane sections 501 and the protruding sections 502 are in one-to-one correspondence with the ball sections 3 and the spacing sections 4 respectively.

The middle part of the groove bottom of the convex section 502 is convex and extends downwards to two ends to be connected with the groove bottom of the plane section 501, and the convex height is smaller than the height of the part of the driving ball 301 exposed out of the bottom surface of the driving part 1.

The driving ball 301 is attached to the bottom of the flat section 501, and the supporting ball 401 is attached to the protruding end of the bottom of the protruding section 502.

The specific working principle of this embodiment is as follows:

1. in the initial state, all the driving rollers fall into the plane section 501 and are attached to the bottom of the plane section 501; all the supporting balls 401 fall into the convex sections 502 and are attached to the bottom of the convex end groove;

2. at the moment, the power source controls the driving part 1 to rotate, the driving roller gradually enters the convex section 502, the movable part 2 is gradually pushed outwards by the thrust until the driving part 1 rotates by 45 degrees, the driving roller at the forefront end is attached to the groove bottom convex end of the convex section 502, the movable part 2 is positioned at the maximum linear displacement position at the moment, and the displacement is equal to the height difference between the groove bottom convex end of the convex section 502 and the groove bottom of the plane section 501;

3. then the driving part 1 continues to rotate until the driving part rotates for 135 degrees altogether, the driving roller at the rearmost end begins to be separated from the groove bottom protruding end of the protruding section 502, the driving roller continues to rotate, the movable part 2 begins to reset under the reset action of the equipment, and the movable part 2 is located at the minimum displacement position until the driving roller rotates for 180 degrees altogether, and the linear reciprocating motion is completed.

The resetting function of the device comprises but is not limited to resetting force of pushing the upper roller upwards by the workpiece when the device is applied to a loosening component of an ultra-high speed feeder; when the valve is switched on and off at a high speed, the acting force of a return spring is applied; and a reset mechanism specifically configured for use in other high-speed linear scenarios, as will be appreciated by those skilled in the art.

In the embodiment, the driving part 1 is controlled to rotate around the axis by the power source, so that the driving ball 301 of the ball section 3 is controlled to slide on the plane section 501 and the convex section 502, when the driving ball 301 slides to the convex section 502, the movable part 2 is gradually pushed downwards by the driving ball 301 until the driving ball 301 is attached to the convex end of the convex section 502, the movable part 2 completes the maximum linear displacement, then the driving ball 301 slides back to the plane section 501, the movable part 2 resets to complete the linear reciprocating motion, and the linear reciprocating motion can be efficiently realized by efficiently converting the rotary motion into the linear motion, so that the efficiency is greatly improved;

the embodiment only adopts the balls to transmit linear driving force, so that the cost is very low, the structure is very simple, and the universality is strong;

the rotary motion of the power source is directly converted into linear reciprocating motion through one-time transmission, the design is ingenious, high linear reciprocating frequency can be achieved, and the requirements of an ultra-high speed feeder, a high-speed switch valve and the like are met;

the utility model discloses a ball comes the transmission, effectively reduces the power loss, improves life simultaneously greatly.

The tank bottom both ends of protruding end of this embodiment are connected with plane section 501, and the middle part is protruding, and is excessively level and smooth, is obstructed when avoiding drive ball 301 to slide, reduces power loss.

The spacing segment 4 of this embodiment is provided with the support ball 401, and when the drive ball 301 slides in the plane segment 501, the support ball 401 is attached to the groove bottom protruding end of the protruding end, so that the overall stress balance and the excessive smoothness are ensured.

The ball segments 3 and the spacing segments 4 in the embodiment have the same length, and every time the driving balls 301 all fall into the plane segment 501, the supporting balls 401 all necessarily fall into the convex segment 502, and the movable part 2 is in the initial state; when the driving balls 301 all fall into the convex section 502, the supporting balls 401 all fall into the plane section 501 without fail, at this time, the movable part 2 is in the push-out state, the driving part 1 only needs to rotate by an angle equivalent to the radian of the ball section 3 or the spacing section 4, and one-time movement of the movable part 2 can be completed, so that the switching speed of the movable part 2 between the initial state and the push-out state can be increased, and the efficiency of linear reciprocating motion is improved.

In the specification of the present invention, a large number of specific details are explained. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims (6)

1. A high-speed linear reciprocating motion mechanism is characterized by comprising a driving part and a movable part, wherein the top end of the driving part is linked with a power source, the power source controls the driving part to rotate around the axis, a circle of ball ring taking the axis as the center of circle is arranged on the end surface of the bottom end of the driving part, the ball ring comprises a plurality of ball sections and spacing sections arranged between the adjacent ball sections, the ball sections comprise a plurality of driving balls which are uniformly arranged and installed by taking the axis as the center of a circle, one end face of the movable part is provided with a ball groove matched with the ball ring, the ball groove comprises a plurality of plane sections and convex sections, the plane section and the convex section are respectively in one-to-one correspondence with the ball section and the spacing section, the driving ball is jointed with the bottom of the plane section, the groove bottom of the protruding section is convexly arranged, and the protruding height is smaller than the height of the part, exposed out of the driving ball, of the bottom surface of the driving part.

2. The high-speed linear reciprocating motion mechanism according to claim 1, wherein the middle part of the bottom of the convex section groove is convex and extends downwards to two ends to be connected with the bottom of the plane section groove.

3. The mechanism of claim 1, wherein the spacer comprises a plurality of support balls uniformly arranged around the axis, and the support balls are engaged with the bottom convex end of the convex section.

4. A high-speed linear reciprocating mechanism according to claim 3, wherein the bottom surface of the driving part is provided with a mounting groove and a clamping pad, the clamping pad is fixed on the bottom surface of the driving part, and the driving ball and the supporting ball are clamped in the mounting groove to form the ball ring.

5. The high-speed linear reciprocating motion mechanism according to claim 4, wherein the outer circumferential surface of the engaging pad is uniformly provided with engaging members, and the outer circumferential surface of the driving portion is provided with engaging grooves for engaging with the engaging members.

6. A high speed linear reciprocating mechanism according to any one of claims 1 to 5, wherein the ball segments and the spacer segments are of the same length.

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