CN217372064U

CN217372064U - Multi-station positioning mechanism

Info

Publication number: CN217372064U
Application number: CN202220683436.5U
Authority: CN
Inventors: 王治雷; 吴锋华
Original assignee: Dongguan Minjiang Intelligent Technology Co ltd
Current assignee: Dongguan Minjiang Intelligent Technology Co ltd
Priority date: 2022-03-25
Filing date: 2022-03-25
Publication date: 2022-09-06
Anticipated expiration: 2032-03-25

Abstract

The application relates to a multi-station positioning mechanism. The method comprises the following steps: base, rotary rod, a plurality of locating lever and driving piece. The rotating rod is rotatably connected to the base and arranged along the first direction. The positioning rods are fixedly connected to the rotating rod and are arranged at intervals along the first direction. The driving part is connected to the base and is in transmission connection with the rotating rod so as to drive the rotating rod to rotate and enable the positioning rods on the rotating rod to be correspondingly clamped to the carrier one by one. Above-mentioned multistation positioning mechanism adopts driving piece and rotary rod transmission to be connected, and the driving piece can drive the rotary rod and rotate, and then drives a plurality of locating levers on the rotary rod and rotate to joint a plurality of locating levers in a plurality of carriers one-to-one, so, only need one set of servo power can fix a position a plurality of carriers simultaneously.

Description

Multi-station positioning mechanism

Technical Field

The application relates to the technical field of positioning, in particular to a multi-station positioning mechanism.

Background

The precision between the product and the processing station is crucial when the equipment processes the product, and the positioning mechanism is an important mechanism for ensuring the precision of the product and the processing station, so that the requirement of product assembly precision is met.

In the related art, the existing positioning mechanism can only realize single-station positioning, for example, a single sliding mechanism is driven by an air cylinder or a servo motor to realize the single-station positioning function. When the multistation is fixed a position simultaneously, need a plurality of power units to realize, when the station interval is too little, simplex position positioning mechanism can receive the restriction because of the space problem.

SUMMERY OF THE UTILITY MODEL

In view of this, it is necessary to provide a multi-position positioning mechanism, which is a problem that a single-position positioning mechanism is limited due to a space problem when multi-position simultaneous positioning is performed by a plurality of power mechanisms.

A multi-station positioning mechanism. Multistation positioning mechanism is used for fixing a position simultaneously to a plurality of carriers on a plurality of slide mechanism, multistation positioning mechanism includes:

a base;

the rotating rod is rotatably connected to the base and is arranged along a first direction;

the positioning rods are fixedly connected to the rotating rod and are arranged at intervals along a first direction; and

the driving piece is connected to the base and is in transmission connection with the rotating rod so as to drive the rotating rod to rotate and enable the plurality of positioning rods on the rotating rod to be clamped in the carrier in a one-to-one correspondence mode.

In one embodiment, the positioning rod comprises a connecting part connected with the rotating rod and a first positioning part connected with the connecting part and arranged at one side far away from the rotating rod;

the carrier comprises a second positioning part matched and connected with the first positioning part;

the locating lever with the carrier is with the help of first location portion and second location portion joint.

In one embodiment, the second positioning part is provided with a positioning groove;

the first positioning portion is provided with a guide member that is fitted to the positioning groove, the guide member being configured to be rotatable about a central axis of the positioning lever relative to the positioning groove.

In one embodiment, the guide member includes a rotating portion rotatably coupled to the positioning groove, and a threaded section coupled to the rotating portion;

the first positioning part is provided with a threaded hole matched with the threaded section along the axial direction of the positioning rod.

In one embodiment, the connecting portion is formed with an annular channel through which the rotating rod passes.

In one embodiment, the rotating rod further comprises a key, the annular channel has a first key slot, the rotating rod has a second key slot, and the key is arranged through the first key slot and the second key slot to fixedly connect the positioning rod to the rotating rod.

In one embodiment, a plurality of reference pieces corresponding to the positioning rods one to one are arranged on the rotating rod;

the reference piece is provided with a first positioning surface perpendicular to the first direction, and the connecting part of the positioning rod is provided with a second positioning surface abutted against the first positioning surface.

In one embodiment, the multi-station positioning mechanism further comprises a plurality of couplers, the number of the rotating rods comprises a plurality of couplers, and two adjacent rotating rods are connected into a whole through the couplers;

each rotating rod is provided with a plurality of positioning rods.

In one embodiment, the multi-station positioning mechanism further comprises a plurality of supporting components connected to the base, and two opposite ends of each rotating rod are respectively rotatably connected with one of the supporting components.

In one embodiment, the supporting component comprises a supporting seat and a bearing, and the supporting seat is fixedly connected to the base;

the supporting seat is provided with an accommodating space for accommodating the bearing, and the rotating rod is rotatably connected to the adjacent bearing.

Above-mentioned multistation positioning mechanism adopts driving piece and rotary rod transmission to be connected, and the driving piece can drive the rotary rod and rotate, and then drives a plurality of locating levers on the rotary rod and rotate to joint a plurality of locating levers in a plurality of carriers one-to-one, so, only need one set of servo power can fix a position a plurality of carriers 21 simultaneously.

Drawings

Fig. 1 is a schematic view illustrating a multi-station positioning mechanism for positioning a plurality of carriers simultaneously according to an embodiment of the present disclosure;

FIG. 2 is a left side view of FIG. 1;

FIG. 3 is a schematic diagram of a multi-station positioning mechanism according to an embodiment of the present disclosure;

FIG. 4 is a schematic structural diagram of a positioning rod according to an embodiment of the present disclosure;

FIG. 5 is a schematic view of a guide member according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of a reference member in an embodiment of the present application.

In the figure: 1. a multi-station positioning mechanism; 2. a sliding mechanism; 21. a carrier; 11. a base; 12. rotating the rod; f1, first direction; 13. positioning a rod; 14. a drive member; 131. a connecting portion; 132. a first positioning portion; 211. a second positioning portion; 211a, a positioning groove; 133. a guide member; 1331. a rotating part; 1332. a threaded segment; 132a, a threaded hole; 131a, an annular channel; 131b, a first key way; 15. a reference member; 15a, a first positioning surface; 131c and a second positioning surface; 16. a coupling; 17. a support assembly; 171. a supporting seat; 18. a synchronous pulley; 19. a belt.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and that modifications may be made by one skilled in the art without departing from the spirit and scope of the application and it is therefore not intended to be limited to the specific embodiments disclosed below.

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 in describing the present application and for simplicity in 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 of the present application.

Furthermore, the terms "first", "second" and "first" 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. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., 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; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, a first feature is "on" or "under" a second feature such that the first and second features are in direct contact, or the first and second features are in indirect contact via an intermediary. 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.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Fig. 1 is a schematic diagram illustrating an operation of a multi-station positioning mechanism for positioning a plurality of carriers simultaneously according to an embodiment of the present disclosure, fig. 2 is a left side view of fig. 1, and fig. 3 is a schematic diagram illustrating a structure of the multi-station positioning mechanism according to an embodiment of the present disclosure.

Referring to fig. 1 to fig. 3, an embodiment of the present application provides a multi-station positioning mechanism 1, including: base 11, rotary rod 12, a plurality of locating rods 13 and driving piece 14. The rotating lever 12 is rotatably connected to the base 11 and arranged along the first direction F1. The positioning rods 13 are all fixedly connected to the rotating rod 12 and arranged at intervals along the first direction F1. The driving element 14 is connected to the base 11 and is in transmission connection with the rotating rod 12 to drive the rotating rod 12 to rotate, so that the positioning rods 13 on the rotating rod 12 are correspondingly engaged with the carriers 21.

The multi-station positioning mechanism 1 adopts the driving part 14 to be in transmission connection with the rotating rod 12, the driving part 14 can drive the rotating rod 12 to rotate, and further drive the positioning rods 13 on the rotating rod 12 to rotate, so that the positioning rods 13 are clamped in the carriers 21 in a one-to-one correspondence manner, and thus, the carriers 21 can be positioned simultaneously by only one set of servo power.

It should be noted that the multi-station positioning mechanism 1 is mainly applied to an automatic production line, a plurality of carriers 21 respectively arranged on a plurality of sliding mechanisms 2 on the automatic production line transmit products along a first direction F1 according to a certain beat, the precision between the products and the machining stations is very important, and the multi-station positioning mechanism 1 can ensure the precision between the products and the machining stations, so as to meet the precision requirement of product assembly. The above-described first direction F1 refers to a direction along the center axis of the rotating rod 12. It is understood that the positioning rods 13 may be arranged at equal intervals or at unequal intervals. The distance between the positioning rods 13 can be adjusted according to the distance between the carriers 21, so as to meet different processing requirements. Since only one set of servo power is needed to drive the positioning rods 13 to rotate along the plane perpendicular to the first direction F1, so as to be engaged with the carriers 21 in a one-to-one correspondence manner. Therefore, the positioning rods 13 can be arranged compactly, and the problem that when the distance between the stations is too small, a single-station positioning mechanism is limited due to space is solved. The positioning rods 13 are engaged with the carriers 21 in a one-to-one manner to drive the carriers 21 to make fine adjustment along the first direction F1, wherein the adjustment range is ± 1 mm. Namely the positioning precision of the multi-station positioning mechanism 1 is +/-1 mm.

Further, the base 11 includes a bottom plate and a side plate, the side plate is fixedly connected to one end of the bottom plate, and the side plate is perpendicular to the bottom plate. Wherein, the bottom plate is used for installing the rotating rod 12, and the side plate is used for installing the driving piece 14. In one embodiment, the driving member 14 comprises a servo motor, the servo motor is in transmission connection with the rotating shaft through a synchronous pulley 18, and the synchronous pulley 18 comprises a driving wheel, a driven wheel and a belt 19 tightly sleeved on the two wheels.

In some embodiments, as shown in fig. 2, the positioning rod 13 includes a connecting portion 131 connected to the rotating rod 12 and a first positioning portion 132 connected to the connecting portion 131 and located at a side away from the rotating rod 12. The carrier 21 includes a second positioning portion 211 coupled to the first positioning portion 132. The positioning rod 13 and the carrier 21 are engaged with each other by the first positioning portion 132 and the second positioning portion 211.

In fig. 2, two states of the jumper 13 are shown, the jumper 13 shown by a broken line is in an open state, and the jumper 13 shown by a broken line is in a closed state. The open state indicates the state that the positioning rod 13 and the carrier 21 are not clamped, the closed state indicates the state that the positioning rod 13 and the carrier 21 are clamped, the servo motor drives the synchronous belt pulley 18, and further drives the rotating shaft to rotate anticlockwise so as to realize synchronous rotation of the plurality of positioning rods 13, and the first positioning portions 132 of the positioning rods 13 are clamped in the second positioning portions 211 of the carrier 21.

In some embodiments, as shown in fig. 2 in combination, the second positioning portion 211 has a positioning groove 211a, the first positioning portion 132 is provided with a guide 133 that is engaged with the positioning groove 211a, and the guide 133 is configured to be rotatable about the central axis of the positioning rod 13 relative to the positioning groove 211 a.

It is understood that the shape of the positioning groove 211a includes, but is not limited to, "U" -shape, "V" -shape, square-shape, etc., and is not limited thereto. In one embodiment, the positioning groove 211a is shaped like a "U", and the positioning groove 211a includes two positioning planes disposed opposite to each other and a circular arc surface connecting the two positioning planes. The guide 133 is provided at an end portion of the detent lever 13, and the guide 133 is rotatable about the center axis of the detent lever 13 with respect to the detent groove 211 a. The guiding member 133 is engaged with the positioning groove 211a, in other words, the guiding member 133 is directly contacted with two oppositely disposed positioning planes of the positioning groove 211a and rotates at the same time, and the guiding member 133 plays roles of buffering, damping and guiding. The openings of the two oppositely arranged positioning planes of the positioning groove 211a are provided with chamfers.

In some embodiments, as shown in fig. 4 and fig. 5, fig. 4 is a schematic structural view of the positioning rod 13 in an embodiment of the present application, and fig. 5 is a schematic structural view of the guiding element 133 in an embodiment of the present application. The guide 133 includes a rotating portion 1331 rotatably coupled to the positioning groove 211a, and a threaded portion 1332 coupled to the rotating portion 1331, and the first positioning portion 132 is provided with a threaded hole 132a along the axial direction of the positioning rod 13 to be engaged with the threaded portion 1332.

In one embodiment, the guide 133 is a needle cam guide, which is a compact, highly rigid, and axial bearing. The needle roller cam guider is internally provided with a needle roller bearing which can be used as a guide roller. Since the outer ring of the needle roller cam guide is in direct contact with the mating surface and performs a rotational motion, the outer ring is constructed with a thick wall and can withstand an impact load in design. In addition, the needle roller with the precise retainer is arranged in the outer ring, so that the excellent rotation performance is realized, and the high-speed rotation can be borne.

The outer ring of the needle roller cam guide is a cylindrical surface, and the outer ring directly contacts two oppositely arranged positioning planes of the U-shaped positioning groove 211a of the carrier 21 and rotates around the central axis of the positioning rod 13 relative to the positioning groove 211 a. The threaded section 1332 is screwed into the threaded hole 132a of the positioning rod 13.

In some embodiments, as shown in connection with fig. 4, the connection portion 131 is formed with an annular channel 131a through which the rotating rod 12 is passed.

It can be understood that the connecting portion 131 of the positioning rod 13 embraces the rotating rod 12, and the connecting portion 131 of the positioning rod 13 is integrally formed in a hoop shape and has an opening through which a bolt passes for fastening the connecting portion 131.

In some embodiments, the rotating rod 12 further comprises a key (not shown), the annular channel 131a has a first key slot 131b, the rotating rod 12 has a second key slot (not shown), and the key is disposed through the first key slot 131b and the second key slot to fixedly couple the positioning rod 13 to the rotating rod 12.

In some embodiments, referring to fig. 6, fig. 6 is a schematic structural diagram of a reference member in an embodiment of the present application, a plurality of reference members 15 corresponding to the positioning rods 13 one by one are disposed on the rotating rod 12, each reference member 15 has a first positioning surface 15a perpendicular to the first direction F1, and the connecting portion 131 of the positioning rod 13 has a second positioning surface 131c abutting against the first positioning surface 15 a.

It is understood that the reference member 15 is used as a mounting reference of the positioning rod 13, and the reference member 15 is fixedly connected to the rotating rod 12 and arranged at intervals in the first direction F1. The reference member 15 is integrally formed as a hoop having an opening through which a bolt is passed for fastening the reference member 15.

In some embodiments, as shown in fig. 3, the multi-station positioning mechanism 1 further includes a plurality of couplers 16, the number of the rotating rods 12 includes a plurality of, two adjacent rotating rods 12 are connected into a whole through the couplers 16, and each rotating rod 12 is provided with a plurality of positioning rods 13.

It can be understood that the number of the rotating rods 12 can be set according to the number of the carriers 21, when the number of the carriers 21 is large and the distance between the carriers 21 is large, a plurality of rotating rods 12 can be arranged in the first direction F1, and two adjacent rotating rods 12 are connected into a whole through the coupling 16.

In some embodiments, as shown in fig. 3, the multi-station positioning mechanism 1 further includes a plurality of supporting members 17 connected to the base 11, and each of the rotating rods 12 has opposite ends rotatably connected to one of the supporting members 17.

It will be appreciated that both ends of the rotary rod 12 are supported by two support members 17.

In some embodiments, as shown in fig. 3, the supporting assembly 17 includes a supporting base 171 and a bearing (not shown), the supporting base 171 is fixedly connected to the base 11, the supporting base 171 forms a receiving space for receiving the bearing, and the rotating rod 12 is rotatably connected to an adjacent bearing.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. The utility model provides a multistation positioning mechanism, its characterized in that multistation positioning mechanism is used for fixing a position simultaneously to a plurality of carriers on a plurality of slide mechanism, multistation positioning mechanism includes:

a base;

2. The multi-station positioning mechanism according to claim 1, wherein the positioning rod comprises a connecting portion connected to the rotating rod and a first positioning portion connected to the connecting portion and located on a side away from the rotating rod;

3. The multi-station positioning mechanism according to claim 2, wherein the second positioning portion has a positioning groove;

the first positioning portion is provided with a guide member that is fitted to the positioning groove, the guide member being configured to be rotatable about a central axis of the positioning rod with respect to the positioning groove.

4. A multi-station positioning mechanism as claimed in claim 3, wherein the guide comprises a rotating portion rotatably connected to the positioning slot, and a threaded segment connected to the rotating portion;

5. The multi-station positioning mechanism according to claim 2, wherein the connecting portion is formed with an annular channel through which the rotating rod passes.

6. The multi-station positioning mechanism according to claim 5, wherein the rotating rod further comprises a key, the annular channel has a first key slot, the rotating rod has a second key slot, and a key is disposed through the first key slot and the second key slot to fixedly connect the positioning rod to the rotating rod.

7. The multi-station positioning mechanism according to claim 6, wherein the rotating rod is provided with a plurality of reference members corresponding to the positioning rods one to one;

8. The multi-station positioning mechanism according to claim 1, further comprising a plurality of couplers, wherein the number of the rotating rods comprises a plurality of couplers, and two adjacent rotating rods are connected into a whole through the couplers;

each rotating rod is provided with a plurality of positioning rods.

9. The multi-station positioning mechanism of claim 8, further comprising a plurality of support members connected to the base, wherein opposite ends of each of the plurality of rotating rods are rotatably connected to one of the plurality of support members.

10. The multi-station positioning mechanism according to claim 9, wherein the support assembly comprises a support base and a bearing, and the support base is fixedly connected to the base;