CN114074427A

CN114074427A - Positioning device

Info

Publication number: CN114074427A
Application number: CN202010833978.1A
Authority: CN
Inventors: 付昭国; 吕理清; 向健华; 唐灿华
Original assignee: Futaihua Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Current assignee: Futaihua Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Priority date: 2020-08-18
Filing date: 2020-08-18
Publication date: 2022-02-22

Abstract

A positioning device comprises a base and an adsorption mechanism; the base is provided with a positioning pin for positioning the first component; the adsorption mechanism is arranged on the base and used for adsorbing and positioning the second component; the adsorption mechanism is provided with an adsorption part which is profiled on the second component, the adsorption part is provided with a plurality of spaced first hole groups and second hole groups which are used for adsorbing the second component, and the first hole groups and the second hole groups comprise at least one adsorption hole; the central connecting lines of the adsorption holes of the first hole groups and the central connecting lines of the adsorption holes of the second hole groups are arranged at intervals and respectively extend along the axial direction of the adsorption part; the adjacent first hole group and second hole group are provided at intervals in the axial direction of the suction portion. The positioning device forms an asymmetric layout on the adsorption part through the adsorption holes, reduces the mutual influence among the adsorption holes, improves the reliability of the adsorption mechanism for adsorbing the second part, and avoids the deviation of the second part during positioning.

Description

Positioning device

Technical Field

The present application relates to a positioning device.

Background

The industrial production includes that positioning devices are needed in assembly and machining processes for positioning workpieces, for example, a first part and a second part of the workpieces are positioned respectively, and then the first part and the second part are assembled. However, the first and second parts are prone to misalignment during positioning.

Disclosure of Invention

In view of the above, it is necessary to provide a positioning device.

Some embodiments of the present application provide a positioning device comprising a base and an adsorption mechanism; the base is provided with a plurality of positioning pins used for positioning the first component; the adsorption mechanism is arranged on the base and used for adsorbing and positioning the second component; the adsorption mechanism is provided with an adsorption part which is profiled on the second component, a plurality of spaced first hole groups and a plurality of spaced second hole groups for adsorbing the second component are arranged on the adsorption part, and each first hole group and each second hole group comprise at least one adsorption hole; the central connecting lines of the adsorption holes of the first hole groups and the central connecting lines of the adsorption holes of the second hole groups are arranged at intervals and respectively extend along the axial direction of the adsorption part; the first hole group and the second hole group adjacent to each other are provided at an interval in the axial direction of the suction portion.

In the positioning device, the adsorption part which is profiled on the second component is arranged through the adsorption mechanism, the adsorption part is provided with the first hole groups and the second hole groups at intervals along the axial direction of the adsorption part, the adsorption holes form an asymmetric layout on the adsorption part, the mutual influence among the adsorption holes is reduced, the reliability of the adsorption mechanism for adsorbing the second component is improved, the deviation of the second component in positioning is avoided, and the base is provided with the positioning pins, so that the first component and the second component are relatively accurately positioned.

Drawings

Fig. 1 is a schematic structural diagram of a positioning device and a workpiece according to an embodiment of the present application.

Fig. 2 is an exploded view of the positioning device shown in fig. 1.

Fig. 3 is an exploded view of the positioning device shown in fig. 2 from another perspective.

Fig. 4 is a schematic structural view of the air vent in the positioning device shown in fig. 1.

Fig. 5 is a schematic structural view of an adsorbing member in the positioning device shown in fig. 1.

Fig. 6 is a sectional view of the absorbent member shown in fig. 5 taken along the line VI-VI.

Fig. 7 is a schematic structural view of the workpiece shown in fig. 1 when the assembly is completed.

Description of the main elements

Positioning device 200

Base 201

Locating surface 2011

Accommodating groove 2013

Positioning pin 203

Elastic member 205

Baffle plate 207

Slide hole 2071

Adsorption mechanism 100

Suction part 101

Axis of symmetry O

First hole group 102

First line O1

Second group of holes 103

Second line O2

Third group of holes 104

Adsorption hole 1001

Positioning boss 105

Air inlet seat 10

Vent line 106

Base body 11

First groove 111

Opening 113

Ventilation member 13

First portion 131

First air hole 1311

Second portion 133

Second air hole 1331

Second groove 1333

First through hole 1335

Sliding pin 15

Adsorption member 20

Second communication hole

21, 21a

Workpiece 300

First part 301

Alignment holes 3011

Second part 303

End face 3031

The following detailed description will further illustrate the present application in connection with the above figures.

Detailed Description

Embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application, and it should be understood that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments.

It should be noted that when one component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Some embodiments of the present application provide a positioning device, including a base and an adsorption mechanism; the base is provided with a plurality of positioning pins used for positioning the first component; the adsorption mechanism is arranged on the base and used for adsorbing and positioning the second component; the adsorption mechanism is provided with an adsorption part which is profiled on the second component, a plurality of spaced first hole groups and a plurality of spaced second hole groups for adsorbing the second component are arranged on the adsorption part, and each first hole group and each second hole group comprise at least one adsorption hole; the central connecting lines of the adsorption holes of the first hole groups and the central connecting lines of the adsorption holes of the second hole groups are arranged at intervals and respectively extend along the axial direction of the adsorption part; the first hole group and the second hole group adjacent to each other are provided at an interval in the axial direction of the suction portion.

The positioning device is provided with the adsorption part profiling on the second component through the adsorption mechanism, the adsorption part is provided with the first hole groups and the second hole groups at intervals along the axial direction, the adsorption holes form an asymmetric layout on the adsorption part, the mutual influence among the adsorption holes is reduced, the reliability of the adsorption mechanism for adsorbing the second component is improved, the second component is prevented from deviating during positioning, the base is provided with the positioning pins, and the first component and the second component are positioned accurately relatively.

Some embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following embodiments, features of the embodiments may be combined with each other without conflict.

Referring to fig. 1 and 2, some embodiments of the present application provide a positioning device 200 for positioning a first part 301 and a second part 303 of a workpiece 300 before the workpiece 300 is assembled. The first member 301 is substantially a planar plate-like structure, and the second member 303 is substantially an extended strip-like structure, and the cross section thereof is arc-shaped, but not limited thereto. It is understood that in other embodiments, the first member 301 and the second member 303 may have a plate-like structure, a strip-like structure, or the like. The direction of extension of the second part 303 is its axial direction. Wherein the first part 301 and the second part 303 of the workpiece 300 are assembled as shown in figure 7. The positioning device 200 includes a base 201 and an adsorption mechanism 100. The base 201 is provided with a plurality of positioning pins 203. The positioning pins 203 are used to position the first member 301. The suction mechanism 100 is disposed on the base 201 and is used for sucking and positioning the second component 303. Specifically, the suction mechanism 100 is provided with a suction portion 101 following the second member 303. The suction part 101 is provided with a first hole group 102 having a plurality of intervals and a second hole group 103 having a plurality of intervals, as shown in fig. 5 and 6. Each first hole group 102 and each second hole group 103 includes at least one adsorption hole 1001. The centers of the adsorption holes 1001 of the plurality of first hole groups 102 are collinear. The center lines of the adsorption holes 1001 of the second hole group 103 are collinear. Here, it is defined that the center line of the adsorption wells 1001 of the first well group 102 is connected to a first line O1, and the center line of the adsorption wells 1001 of the second well group 103 is connected to a second line O2. The first line O1 and the second line O2 extend in the axial direction of the suction portion 101, respectively, and are disposed at intervals. The adjacent first hole group 102 and second hole group 103 are provided at intervals in the axial direction of the suction portion 101, and the plurality of first hole groups 102 and the plurality of second hole groups 103 are asymmetrically arranged on the suction portion 101.

The first hole group 102 and the second hole group 103 are respectively communicated with an air suction device. The suction to the first hole group 102 and the second hole group 103 causes the second member 303 to be stably adsorbed to the suction unit 101, and the suction unit 101 follows the second member 303 to ensure the second member 303 is reliably adsorbed. The plurality of first hole groups 102 and the plurality of second hole groups 103 are provided at intervals in the axial direction of the suction unit 101, and the suction unit 101 is formed in an asymmetric layout, so that the mutual influence between the suction holes 1001 for sucking the second member 303 is reduced, and for example, when one of the suction holes 1001 leaks air, the suction of the second member 303 by the other suction holes 1001 adjacent to the suction hole 1001 is not secured. The adjacent first hole group 102 and second hole group 103 are provided at intervals in the axial direction of the suction unit 101, so that the reliability of the suction mechanism 100 in sucking the second member 303 is improved, and the second member 303 is prevented from being misaligned when positioned.

Referring to fig. 5, the number of the adsorption holes 1001 of different first hole groups 102 may be the same or different. The number of adsorption holes 1001 of different second hole groups 103 may be the same or different. For example, in one embodiment, the number of the first hole group 102 is three, and the number of the adsorption holes 1001 of the three first hole groups 102 is nine, six, and three, respectively. The number of the second hole group 103 is two, and the number of the adsorption holes 1001 of the two second hole groups 103 is six. It is understood that in other embodiments, the number of the first hole set 102 and the second hole set 103 may be two, five, etc. other numbers, respectively. The number of adsorption holes 1001 in each first hole group 102 and each second hole group 103 may also be one, four, or other numbers, respectively.

The first line O1 and the second line O2 are symmetrical with respect to the axis O of symmetry of the suction portion 101 in the axial direction, so that the two symmetrical positions of the second member 303 are respectively subjected to suction force, and the suction securing effect is improved. It is understood that in other embodiments, the distances from the symmetry axis O of the first line O1 and the second line O2 may be different.

Referring to fig. 5 and 6, the adsorption part 101 is further provided with a plurality of spaced third hole groups 104. Each third hole group 104 includes at least one adsorption hole 1001. The center line of the suction holes 1001 of the third hole group 104 is collinear with the axis of symmetry O of the suction portion 101 in the axial direction. The plurality of third hole groups 104 enhance the suction force and the suction stability of the suction mechanism 100 to the second component 303, and it is understood that in other embodiments, the plurality of third hole groups 104 may be omitted.

The adsorption mechanism 100 is provided with a plurality of spaced third hole groups 104, and prevents the adsorption holes 1001 in the third hole groups 104 from interfering with each other, thereby improving adsorption stability.

In one embodiment, the number of third hole sets 104 is four. The number of the adsorption holes 1001 of the four third hole groups 104 is seventeen, eight, and three, respectively, but is not limited thereto. It is understood that in other embodiments, the number of the third hole groups 104 and the adsorption holes 1001 of each third hole group 104 may be other numbers.

Referring to fig. 6 and 7, in order to further accurately position the second component 303 and prevent the second component 303 from deviating before being adsorbed, positioning bosses 105 are respectively disposed on two sides of the adsorbing portion 101. The two positioning bosses 105 are respectively configured to abut against two end surfaces 3031 of the second member 303 facing the suction portion 101. It is understood that in other embodiments, the positioning boss 105 may be omitted, and the accuracy of placing the second component 303 on the suction portion 101 by controlling other devices may be utilized to avoid the second component 303 from being misaligned.

Referring to fig. 1, fig. 2 and fig. 3, a positioning surface 2011 is disposed on one side of the base 201. The positioning surface 2011 is provided with a receiving groove 2013. The positioning pins 203 are disposed on the base 201 and protrude from the positioning surface 2011 to be able to cooperate with the positioning holes 3011 on the first component 301, so that the first component 301 is positioned on the positioning surface 2011. The adsorption mechanism 100 includes an air inlet seat 10 and an adsorption member 20. The air inlet seat 10 is accommodated in the accommodating groove 2013. The adsorption member 20 is disposed on the air inlet seat 10. The adsorption part 101 is disposed on a side of the adsorption member 20 away from the air inlet seat 10. One side of the adsorption part 101 away from the air inlet seat 10 is lower than the positioning surface 2011, so as to leave an accommodating space for the second component 303. After the second member 303 is placed on the suction portion 101, the first member 301 is placed on the positioning surface 2011, and the second member 303 is bonded to the first member 301.

With continued reference to fig. 4 and 5, a ventilation line 106 is disposed in the intake seat 10, and the ventilation line 106 is connected to the suction device. The first, second, and third orifice sets 102, 103, and 104, respectively, communicate with a vent line 106. Specifically, the intake base 10 includes a base body 11 and a breather 13. The seat body 11 is disposed in the accommodating groove 2013. One side of the seat body 11 departing from the accommodating groove 2013 is provided with a first groove 111. One side of the first groove 111 is provided with a through opening 113. The vent 13 includes a first portion 131 and a second portion 133 that meet. The first portion 131 is disposed in the accommodating groove 2013. The second portion 133 is received in the first recess 111 through the opening 113. First air hole 1311 is provided in first portion 131, second air hole 1331 is provided in second portion 133, and first air hole 1311 communicates with second air hole 1331. A second groove 1333 is disposed on a side of the second portion 133 away from the seat body 11. The adsorption member 20 is disposed in the second groove 1333. The bottom wall of the second groove 1333 is provided with a plurality of first communicating holes 1335 communicated with the second air holes 1331. The first air hole 1311, the second air hole 1331, and the plurality of first communication holes 1335 form the vent line 106. The suction member 20 is provided with a second communication hole 21 and a second communication hole 21a communicating with the suction hole 1001. Each of the second communication holes 21 and each of the second communication holes 21a communicate with one of the first communication holes 1335, respectively. The second communication hole 21 communicates with the adsorption hole 1001 of the third hole group 104.

With continued reference to fig. 3 and 6, the third hole group 104 and a part of the suction holes 1001 of the first hole group 102 or the second hole group 103, respectively, may be located on the same cross section of the suction portion 101 perpendicular to the symmetry axis O to facilitate the arrangement of the first communication hole 1335 and the second communication hole 21a for ventilating the suction holes 1001 on the same cross section.

It is understood that in other embodiments, the second communication hole 21 may be coaxial with the suction hole 1001 to form a hole structure.

Referring to fig. 2, in order to accurately position the air inlet seat 10 and the base 201 relative to each other, so as to further improve the positioning accuracy of the first member 301 and the second member 303, an elastic member 205 is disposed on a sidewall of the accommodating groove 2013 of the base 201. One end of the elastic element 205 abuts against the seat body 11 of the air inlet seat 10, so as to drive one side of the seat body 11 of the air inlet seat 10 departing from the elastic element 205 to be attached to the other side wall of the accommodating groove 2013. Two opposite side surfaces of the base 201 and the accommodating groove 2013 are used as positioning reference surfaces, so that the positioning accuracy of the air inlet seat 10 and the base 201 is improved.

The accommodating groove 2013 penetrates through the two opposite sides of the base 201. The base 201 is provided with blocking pieces 207 at two sides of the accommodating groove 2013 respectively. After the seat 11 is installed in the accommodating groove 2013, the blocking piece 207 is installed on the base 201. The baffle 207 is provided with a slide hole 2071, and the air inlet seat 10 is provided with a slide pin 15. The sliding pin 15 is located in the sliding hole 2071 and slides along the sliding hole 2071, and the sliding direction is parallel to the direction in which the elastic element 205 abuts against the air inlet seat 10.

It is understood that in other embodiments, the elastic member 205, the sliding hole 2071 and the sliding pin 15 may be omitted.

To further accurately position the first member 301 and the second member 303, the air inlet seat 10 is provided with positioning pins 203, and the positioning pins 203 are matched with the positioning holes 3011 of the first member 301.

The first component 301 and the second component 303 can be assembled and connected by hot-melting and laminating, and in order to save energy, the seat body 11 and/or the ventilation member 13 are/is a heat insulation structure, so that energy used for hot-melting and laminating is prevented from being transmitted to the base 201 through the air inlet seat 10, and energy waste is avoided. It is understood that in other embodiments, the first component 301 and the second component 303 can be assembled by other methods, for example, by gluing, and the seat 11 and/or the vent 13 do not need to be insulated.

The positioning device 200 is provided with the suction part 101 which is configured to follow the second component 303 through the suction mechanism 100, and a plurality of first hole groups 102 and second hole groups 103 are arranged on the suction part 101 at intervals along the axial direction, the suction holes 1001 form an asymmetric layout on the suction part 101, the mutual influence between the suction holes 1001 is reduced, the reliability of the suction mechanism 100 for sucking the second component 303 is improved, the deviation of the second component 303 during positioning is avoided, and a plurality of positioning pins 203 are arranged on the base 201, so that the first component 301 and the second component 303 are relatively accurately positioned.

In addition, other changes can be made by those skilled in the art within the spirit of the present application, and of course, such changes are encompassed by the disclosure of the present application.

Claims

1. A positioning device, comprising:

a base provided with a plurality of positioning pins for positioning a first component; and

the adsorption mechanism is arranged on the base and used for adsorbing and positioning the second component;

the adsorption mechanism is characterized in that the adsorption mechanism is provided with an adsorption part which is profiled on the second component, a plurality of spaced first hole groups and a plurality of spaced second hole groups which are used for adsorbing the second component are arranged on the adsorption part, and each first hole group and each second hole group comprise at least one adsorption hole;

the central connecting lines of the adsorption holes of the first hole groups and the central connecting lines of the adsorption holes of the second hole groups are arranged at intervals and respectively extend along the axial direction of the adsorption part;

the first hole group and the second hole group adjacent to each other are provided at an interval in the axial direction of the suction portion.

2. The positioning device of claim 1, wherein: the central connecting line of the suction holes of the first hole group and the central connecting line of the suction holes of the second hole group are symmetrical with respect to the axis of symmetry of the suction part in the axial direction.

3. The positioning device of claim 1, wherein: the adsorption part is also provided with a plurality of third hole groups at intervals; each of the third aperture groups includes at least one adsorption aperture;

the center line of the suction holes of the third hole group is collinear with the axis of symmetry of the suction part in the axial direction.

4. The positioning device of claim 1, wherein: the adsorption mechanism includes:

the air inlet seat is arranged on the base and is provided with a vent pipeline, and the vent pipeline is communicated with an air suction device;

the adsorption part is arranged on one side of the adsorption part, which is far away from the air inlet seat; the first orifice set and the second orifice set are respectively communicated with the ventilation pipeline.

5. The positioning device of claim 4, wherein: one side of the base is provided with a positioning surface, and the positioning surface is provided with an accommodating groove;

the air inlet seat is accommodated in the accommodating groove, and one side of the adsorption part, which deviates from the air inlet seat, is lower than the positioning surface;

the positioning pins are arranged on the positioning surface and are used for being matched with the positioning holes in the first component.

6. The positioning device of claim 5, wherein: an elastic piece is arranged on one side wall of the accommodating groove;

one end of the elastic piece is abutted against the air inlet seat so as to drive one side of the air inlet seat, which is away from the elastic piece, to be attached to the other side wall of the accommodating groove.

7. The positioning device of claim 6, wherein: the accommodating groove penetrates through two opposite sides of the base, and blocking pieces are respectively arranged on the two opposite sides of the accommodating groove on the base; the baffle plate is provided with a sliding hole, and the air inlet seat is provided with a sliding pin;

the sliding pin is positioned in the sliding hole and slides along the sliding hole, and the sliding direction is parallel to the direction in which the elastic piece abuts against the air inlet seat.

8. The positioning apparatus of claim 5, wherein the air intake seat comprises:

the seat body is arranged in the accommodating groove and is provided with a first groove, and one side of the first groove is provided with a through opening;

the ventilation piece comprises a first part and a second part which are connected, the first part is arranged in the accommodating groove, and the second part passes through the opening and is accommodated in the first groove; a first air hole is formed in the first part, a second air hole is formed in the second part, and the first air hole is communicated with the second air hole; a second groove is formed in one side, away from the seat body, of the second part, and the adsorption piece is arranged in the second groove; the bottom wall of the second groove is provided with a plurality of first communication holes communicated with the second air holes; the first air hole, the second air hole and the plurality of first communication holes form the vent line.

9. The positioning device of claim 8, wherein: the seat body and/or the ventilation piece are of a heat insulation structure.

10. The positioning device of claim 1, wherein: and two positioning bosses are respectively arranged on two sides of the adsorption part and are respectively used for being abutted against two end faces on the second component.