CN214110106U

CN214110106U - Positioning device

Info

Publication number: CN214110106U
Application number: CN202021840964.4U
Authority: CN
Inventors: 管善意; 张角; 汤爱军
Original assignee: Shenzhen Yuzhan Precision Technology Co ltd
Current assignee: Fulian Yuzhan Technology Shenzhen Co Ltd
Priority date: 2020-08-28
Filing date: 2020-08-28
Publication date: 2021-09-03
Anticipated expiration: 2030-08-28

Abstract

The application discloses positioner for fix a position first work piece and second work piece, first work piece is close to the setting of second work piece, just first work piece includes at least one locating surface that can laminate with the second work piece, positioner includes: a base plate for holding a second workpiece; the cover plate mechanism is movably covered on the bottom plate and comprises a fixing component, a pressing component and a positioning elastic part, the pressing component is in sliding connection with the fixing component, two ends of the positioning elastic part are respectively in elastic connection with the fixing component and the pressing component, the pressing component is arranged on a first workpiece and is arranged on one side of the positioning surface, and the positioning elastic part can apply force to the pressing component so as to press the pressing component to press the positioning surface, so that the first workpiece is attached to a second workpiece. The positioning device can simultaneously position a plurality of surfaces, realizes stable positioning of the first workpiece and the second workpiece, has a good positioning effect, and can effectively reduce scratches on the bottom surfaces of the workpieces.

Description

Positioning device

Technical Field

The utility model relates to an industrial production makes the field, especially relates to a positioner.

Background

In an industrial production process, a plurality of workpieces are often required to be combined and positioned. For example: it is necessary to position one smaller component on top of the other and to perform the welding operation on both components. Because the component is irregular in structure usually, has more than one locating surface, then current small-size card is held equipment and can't realize better location effect, arouses the outflow of defective products in the course of working easily.

For example, when a small piece including both a vertical surface and a bottom surface (Z direction) needs to be positioned with a base workpiece, the vertical surface of the small piece needs to be completely attached to the base workpiece (X direction or Y direction), and the bottom surface of the small piece needs to be completely attached to the base workpiece without scratches, so that the small piece can be conveniently positioned and attached to perform a subsequent processing procedure. However, the existing positioning mode is easy to scratch the bottom surface and cannot meet the production requirement. Therefore, how to design a positioning fixture, which can position the small piece and the basic workpiece and prevent the positioning surface from being scratched as much as possible, has become a problem to be solved in the art.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is desirable to provide a positioning device with multi-directional positioning function to solve the above problems.

A positioning device for positioning a first workpiece and a second workpiece, the first workpiece being disposed proximate the second workpiece, and the first workpiece including at least one positioning surface that is conformable to the second workpiece, the positioning device comprising:

a base plate for holding a second workpiece;

the cover plate mechanism is movably covered on the bottom plate and comprises a fixing component, a pressing component and a positioning elastic part, the pressing component is in sliding connection with the fixing component, two ends of the positioning elastic part are respectively in elastic connection with the fixing component and the pressing component, the pressing component is arranged on a first workpiece and is arranged on one side of the positioning surface, and the positioning elastic part can apply force to the pressing component so as to press the pressing component to press the positioning surface, so that the first workpiece is attached to a second workpiece.

In some embodiments, the locating surface comprises a first locating surface and a second locating surface; the pressing and holding assembly comprises a first pushing block and a second pushing block, the first pushing block and the second pushing block are respectively arranged on one side of the first positioning surface and one side of the second positioning surface, and the positioning elastic piece comprises a first positioning elastic piece and a second positioning elastic piece; the first pushing block and the second pushing block are respectively in sliding connection with the fixed assembly, two ends of the first positioning elastic piece are respectively in elastic connection with the fixed assembly and the first pushing block, and two ends of the second positioning elastic piece are respectively in elastic connection with the fixed assembly and the second pushing block.

In some embodiments, the first workpiece further includes a third positioning surface, the third positioning surface is parallel to the bottom plate, the third positioning surface is perpendicular to the first positioning surface and the second positioning surface, and the bottom of the front ends of the first pushing block and the second pushing block is used for applying force to the third positioning surface to make the third positioning surface fit the second workpiece.

In some embodiments, the positioning surface comprises a first positioning surface and a third positioning surface, the first positioning surface is perpendicular to the third positioning surface, and the third positioning surface is parallel to the bottom plate; and the bottom of the pressing and holding assembly is used for applying force to the third positioning surface to enable the third positioning surface to be attached to the second workpiece.

In some embodiments, the cover plate mechanism further comprises a first auxiliary pushing block, the first auxiliary pushing block comprises a first pushing part and a second pushing part which are connected, the first pushing part is connected with the first pushing block, and the second pushing part is connected with the second pushing block;

the first auxiliary pushing block can move in the direction perpendicular to the first positioning surface, the first pushing portion can apply force to the first pushing block in the direction perpendicular to the first positioning surface, and the second pushing portion can apply force to the second pushing block in the direction perpendicular to the second positioning surface.

In some embodiments, the first positioning surface is perpendicular to the second positioning surface, and the first pushing portion is perpendicular to the second pushing portion;

the first pushing block is provided with a first movable groove, and the first pushing part is embedded in the first movable groove;

the second push block is provided with a second movable groove, one end of the second push portion comprises a force application inclined plane, the second movable groove comprises a stress inclined plane, and the force application inclined plane is abutted to the stress inclined plane.

In some embodiments, the first auxiliary pushing block further comprises a first return elastic piece and a second return elastic piece;

two ends of the first reset elastic piece are respectively and elastically connected with the fixed plate and the first pushing part;

and two ends of the second reset elastic piece are respectively and elastically connected with the fixed plate and the second pushing part.

In some embodiments, the cover mechanism further comprises a second auxiliary push block slidably connected with the fixed component; the first auxiliary pushing block is provided with a boss, the boss is abutted to the second auxiliary pushing block and can move in the direction perpendicular to the first positioning surface under the pushing of the second auxiliary pushing block.

In some embodiments, the fixing assembly includes a fixing plate and a first positioning block, a second positioning block and a third positioning block disposed on the fixing plate; the first positioning block, the second positioning block and the third positioning block are respectively provided with a sliding chute;

the first push block, the second push block and the first auxiliary push block are respectively arranged in the sliding grooves in the first positioning block, the second positioning block and the third positioning block in a sliding mode.

In some embodiments, the first pushing block and the second pushing block respectively comprise a connecting part and a pushing part, the connecting part is used for being connected with the fixing component in a sliding mode, and the pushing part is used for pushing the positioning surface; the pushing part is provided with a yielding hole which is a U-shaped hole and is formed in one side, far away from the connecting part, of the pushing part;

the pushing part is used for pressing one surface of the third positioning surface and a buffering inclined surface is arranged at the intersection of one surface of the pushing part used for pushing the first positioning surface/the second positioning surface.

In some embodiments, the cover plate mechanism further comprises a movable lock accessory which is symmetrically arranged, and the lock accessory is slidably arranged on the fixed component;

the bottom plate is provided with a matching inclined plane matched with the locking accessory, and the locking accessory can be clamped with the matching inclined plane and locked on the bottom plate.

In some embodiments, the locking attachment comprises a sliding portion and a locking attachment portion;

the sliding part is arranged on the fixed component in a sliding mode, the sliding part is connected with the fixed component through a locking elastic piece, and the locking elastic piece can apply force to the sliding part to enable the symmetrical locking accessories to move oppositely;

the locking part is matched with the matching inclined plane on the bottom plate, and the sliding part drives the locking part to move when sliding so that the locking part is clamped with the bottom plate.

In some embodiments, the cover plate mechanism further includes an elastic limiting member disposed on a surface of the fixing member facing the bottom plate, for limiting a distance between the fixing member and the bottom plate.

In some embodiments, the positioning device is disposed between the first robotic arm and the second robotic arm;

the first mechanical arm comprises a clamping claw, and the clamping claw is used for pulling the symmetrically arranged lock accessories to move oppositely;

the second mechanical arm comprises a clamping paw, and the clamping paw is used for moving the bottom plate to enable the bottom plate to move towards the plate covering mechanism.

The positioning device can enable the pressing and holding component to press at least one positioning surface of the first workpiece through the force applied to the pressing and holding component by the positioning elastic component, and further enables the positioning surface to be attached to the fixed second workpiece. Compared with the prior art, the positioning device has the characteristics of simple structure, convenience in operation and low cost, can realize stable positioning of the first workpiece and the second workpiece on a plurality of surfaces for positioning the first workpiece and the second workpiece simultaneously, and has a good positioning effect. The traditional positioning mode is usually to position the bottom surface first, then to position the side, because the bottom surface has already been fixed a position and has compressed tightly, produces the scratch to the bottom surface when fixing a position the side easily. The scheme can position the side face in advance, and not position the side face after positioning the bottom face, so that the problems can be effectively solved, and the bottom face of a product is prevented from being scratched.

Drawings

Fig. 1 is a schematic perspective view of a positioning device according to an embodiment of the present invention.

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

Fig. 3 is a schematic perspective view of another angle of the cover plate mechanism in the positioning device shown in fig. 1.

Fig. 4 is a schematic perspective view illustrating the plate covering mechanism shown in fig. 3 with the first positioning block, the second positioning block, and the third positioning block removed.

Fig. 5 is an exploded perspective view of the cover mechanism of the positioning device shown in fig. 1.

Fig. 6 is a cross-sectional view of the positioning device of fig. 1 taken along line VI-VI.

Description of the main elements

Positioning device 100

First workpiece 200

First positioning surface 201

Second positioning surface 202

Third positioning surface 203

Second workpiece 300

Frame 301

Cover plate mechanism 10

Fastening assembly 10a

Pressing and holding component 10b

Fixing plate 13

Elastic limiting piece 131

First push block 11

First positioning elastic member 111

First movable groove 113

Second push block 12

Second positioning elastic member 121

Second movable groove 123

Connecting part 124

Push portion 125

Abdication hole 126

Buffer inclined plane 127

First auxiliary push block 14

First pushing part 141

First return spring 1411

Second pushing part 142

Second restoring elastic member 1421

Force application ramp 1422

The boss 143

First positioning block 15

Second positioning block 16

Third positioning block 17

Lock attachment 18

Sliding part 181

Locking part 183

Locking bevel 1831

Locking spring 184

Second auxiliary push block 19

Bottom plate 21

Mating ramp 22

The following detailed description will further illustrate the present invention in conjunction with the above figures.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It will be understood that 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. When an element is referred to as being "on" another element, it can be directly on the other element or intervening elements 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 invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

The application provides a positioner for compress tightly first work piece of location and second work piece, in order to make things convenient for follow-up processing. The positioning device comprises a base plate and a cover plate mechanism, wherein the base plate is used for fixing the second workpiece in advance, and the cover plate mechanism is movably covered on the base plate and used for pressing and positioning the first workpiece on the second workpiece. The plate covering mechanism comprises a fixing component and a pressing component, wherein the pressing component is arranged on the fixing component in a sliding mode and can slide relative to the fixing component and press and position the first workpiece.

The technical solution provided by the present invention will be specifically described below with reference to the accompanying drawings.

Referring to fig. 1, the present application provides a positioning apparatus 100 for positioning a first workpiece 200 and a second workpiece 300 to facilitate a subsequent processing process, such as a welding operation, after positioning and fixing. In this embodiment, the first workpiece 200 is a reinforcing frame, and the second workpiece 300 is a camera mounting plate.

To facilitate positioning, the second workpiece 300 is first fixedly positioned, and the first workpiece 200 is grasped by a feeding mechanism such as an external gripper and positioned adjacent to the second workpiece 300. In this embodiment, the first workpiece 200 includes at least one positioning surface that can be attached to the second workpiece 300, the second workpiece 300 has at least one reference surface for positioning, and the reference surface of the second workpiece 300 is disposed corresponding to the positioning surface of the first workpiece 200, and the positioning device 100 provided in this embodiment can position and attach the at least one positioning surface of the first workpiece 200 to the at least one reference surface of the second workpiece 300, so as to facilitate subsequent processing operations.

The positioning device 100 includes a base plate 21 and a cover plate mechanism 10. The bottom plate 21 is used for fixing the second workpiece 300, and the cover plate mechanism 10 is used for positioning and pressing the first workpiece 200 and the second workpiece 300. The first workpiece 200 is placed beside the second workpiece 300 in advance, and at least one reference surface of the second workpiece 300 is arranged corresponding to at least one positioning surface of the first workpiece 200 to facilitate subsequent positioning and fixing. The cover plate mechanism 10 is movably covered on the bottom plate 21, and the cover plate mechanism 10 includes a fixing component 10a, a pressing component 10b and a positioning elastic component (not shown in fig. 1 because the fixing component 10a is hidden). The fixing component 10a is used for fixing the pressing and holding component 10b and driving the pressing and holding component 10b to move up and down when the bottom plate 21 is covered and released. The positioning elastic member is used for driving the pressing and holding component 10b to slide on the fixing component 10a, in order to achieve the above purpose, in this embodiment, the pressing and holding component 10b is connected with the fixing component 10a in a sliding manner, two ends of the positioning elastic member are respectively connected with the fixing component 10a and the pressing and holding component 10b in an elastic manner, and the pressing and holding component 10b is arranged on one side of the positioning surface. The positioning elastic member can be pulled by an external force to drive the pressing component 10b to be away from the positioning surface, and can also apply a force to the pressing component 10b to press the pressing component 10b to the positioning surface after the external force is released, so that the positioning surface of the first workpiece 200 is attached to the second workpiece 300.

In this embodiment, the number of the positioning surfaces is not limited, and may be one or more, and the pressing and positioning of each positioning surface can be realized by the pressing and holding component 10b in the positioning device. In one embodiment of this embodiment, the positioning elastic member is disposed between the fixing component 10a and the pressing component 10b, and the positioning elastic member is an elastic structure having elasticity capable of providing a pulling force, such as a spring, for connecting the fixing component 10a and the pressing component 10 b.

Fig. 2 is an exploded perspective view of a positioning device 100 according to an embodiment of the present invention. The situation when the first workpiece 200 has three locating surfaces is shown in fig. 2. The first workpiece 200 has the following three positioning surfaces: a first positioning surface 201, a second positioning surface 202 and a third positioning surface 203. The first positioning surface 201 and the second positioning surface 202 are arranged perpendicularly, and the first positioning surface 201 and the second positioning surface 202 are connected together to form a substantially L shape; the third positioning surface 203 is perpendicularly connected to one side of the first positioning surface 201 and the second positioning surface 202, and the third positioning surface 203 is parallel to the bottom plate 21.

Fig. 2 also shows the structure of the pressing component 10b, but the number of the push blocks in the pressing component 10b can be adjusted according to the number and area of the positioning surfaces. The pressing and holding assembly in this embodiment comprises a first pushing block 11 and a second pushing block 12. The first pushing block 11 and the second pushing block 12 are respectively disposed on one side of the first positioning surface 201 and one side of the second positioning surface 202, and the front ends of the first pushing block and the second pushing block are respectively used for pushing the first positioning surface 201 and the second positioning surface 202 to move towards the second workpiece 300. The bottom of the front ends of the first pushing block 11 and the second pushing block 12 is used for applying force to the third positioning surface 203 so as to be attached to and press the second workpiece 300. Because the first positioning surface 201 is perpendicular to the second positioning surface 202, the first pushing block 11 and the second pushing block 12 in the pressing component 10b need to be set to apply force to the two positioning surfaces, and although the specific structure is not limited, the front end of the pushing block should ensure that force can be applied to the two corresponding positioning surfaces. In one embodiment of this embodiment, the first pushing block 11 and the second pushing block 12 are both substantially linear structures for convenient operation and matching, so that the first pushing block 11 and the second pushing block 12 are also designed to be perpendicular to each other for matching the included angle between the first positioning surface 201 and the second positioning surface 202. In this embodiment, the positioning and pressing of the first positioning surface 201 and the second positioning surface 202 of the first workpiece 200 by the first pushing block 11 and the second pushing block 12 are divided into the following two cases:

when the initial position where the first workpiece 200 is placed is attached to the second workpiece 300, the first pushing block 11 and the second pushing block 12 apply force to the first positioning surface 201 and the second positioning surface 202 of the first workpiece 200, so that the first workpiece 200 is tightly attached to the second workpiece 300 and plays a positioning role.

When the initial position where the first workpiece 200 is placed is a certain distance away from the second workpiece 300, the first pushing block 11 and the second pushing block 12 push the first workpiece 200 to be attached to the second workpiece 300 when applying force to the first positioning surface 201 and the second positioning surface 202 of the first workpiece 200, and then the first workpiece 200 is pressed and positioned.

In other embodiments, the first positioning surface 201 and the second positioning surface 202 are at an angle but not perpendicular to each other, but the third positioning surface is perpendicular to both the first positioning surface 201 and the second positioning surface 202. In order to realize the positioning and pressing effect, the positions and included angles of the first pushing block 11 and the second pushing block 12 need to be matched. On the premise of ensuring the front end of the first push block 11 to be attached to the first positioning surface 201 and the front end of the second push block 12 to be attached to the second positioning surface 202, for convenience in applying force to the first positioning surface and the second positioning surface, the first push block 11 and the second push block 12 are preferably set to be perpendicular to the first positioning surface 201 and the second positioning surface 202 respectively, but also can be set to be not perpendicular, and it is only possible to realize that the front end of the push block is tightly attached to the positioning surface. For example, in some embodiments, if the included angle between the first positioning surface 201 and the second positioning surface 202 is too small or the gap is too small, the first pushing block 11 and the second pushing block 12 may also be set to be not perpendicular to the corresponding positioning surfaces as needed, and only the front end of the pushing block is ensured to be attached to the positioning surfaces.

In other embodiments, the positioning surfaces may only include the first positioning surface 201 and the second positioning surface 202, and the front ends of the first pushing block 11 and/or the second pushing block 12 in the pressing assembly 10b respectively press the two positioning surfaces to fit the second workpiece 300. In other embodiments, the positioning surfaces may only include the first positioning surface 201 and the third positioning surface 203, or only include the second positioning surface 202 and the third positioning surface 203, the first positioning surface 201 or the second positioning surface 202 is perpendicular to the third positioning surface 203, and the third positioning surface 203 is parallel to the base plate, i.e. the first workpiece 200 may only be a zigzag-shaped structure including two positioning surfaces. Accordingly, only one push block in the pressing assembly 10b may be used, for example, the front end of the first push block 11 or the second push block 12 is used to realize the pressing and positioning of the first positioning surface 201, and the bottom of the first push block 11 or the second push block 12 is used to realize the pressing and positioning of the third positioning surface 203. It can be seen that when the first workpiece 200 includes only two intersecting positioning surfaces, the positioning between the first workpiece 200 and the second workpiece 300 can be achieved by using only one push block.

In this embodiment, the first workpiece 200 may be a reinforcing frame of a camera module of a mobile phone. The second workpiece 300 may be a camera module holder, or a handset chassis and bezel 301 (shown in fig. 2) with a camera module holder.

It is understood that in other embodiments of the present application, the first workpiece 200 and the second workpiece 300 are not limited to the above embodiments, and the positioning device provided in the present disclosure can perform pressing positioning on both structures having at least one surface that can be attached.

Fig. 3 is a perspective view of a plate covering mechanism 10 according to an embodiment of the present disclosure, wherein the plate covering mechanism 10 is used for covering a bottom plate 21 to complete the positioning of a first workpiece 200 and a second workpiece 300. The cover plate mechanism 10 includes a fixing component 10a, a pressing component 10b and a positioning elastic component. The fixing component 10a is used for fixedly installing the first pushing block 11 and the second pushing block 12 in the pressing component 10b and driving them to move up and down, and can enable the first pushing block 11 and the second pushing block 12 to slide relative to the fixing component 10a so as to complete the pressing and positioning of the first positioning surface 201 and the second positioning surface 202.

To achieve the above operation, the fixing assembly 10a in the embodiment of fig. 3 includes a fixing plate 13 and a first positioning block 15, a second positioning block 16 and a third positioning block 17 disposed on the fixing plate 13 to fix the first pushing block 11 and the second pushing block 12. Meanwhile, the first positioning block 15, the second positioning block 16 and the third positioning block 17 are respectively provided with a sliding groove, and the first pushing block 11 and the second pushing block 12 are respectively slidably arranged in the sliding grooves of the first positioning block 15 and the second positioning block 16 and can slide in the sliding grooves.

Through the structure included in the fixing component 10a, when the cover mechanism 10 covers or releases the bottom plate 21, the first pushing block 11 and the second pushing block 12 can be driven to move together, so as to press the third positioning surface 203. Meanwhile, the first pushing block 11 and the second pushing block 12 slide in the sliding grooves of the first positioning block 15 and the second positioning block 16, so that the first positioning surface 201 and the second positioning surface 202 can be pressed and released.

In the embodiment of fig. 3, the plate covering mechanism 10 further includes an elastic limiting member 131, and the elastic limiting member 131 is disposed on a surface of the fixing member facing the bottom plate 21 for limiting a distance between the fixing member and the bottom plate 21. In the process that the cover plate mechanism 10 moves towards the bottom plate 21, the elastic limiting member 131 can play a certain limiting role, so that the cover plate mechanism 10 and the bottom plate 21 cannot be tightly buckled in the first pressing process, and a space is reserved for the second buckling process. In a specific embodiment of the present embodiment, the elastic limiting member 131 is an elastic plunger screw, and other embodiments may also adopt a similar elastic structure, which can play a certain limiting role without affecting the final fastening effect.

Fig. 4 is a partial perspective view of an embodiment of the cover mechanism 10, and the first positioning block, the second positioning block and the third positioning block are not shown in fig. 4 for the sake of clarity.

In the embodiment shown in fig. 4, the plate covering mechanism 10 further includes a first auxiliary pushing block 14, and the first auxiliary pushing block 14 is disposed in a sliding slot formed in the third positioning block 17 and can slide in the sliding slot. The first auxiliary pushing block 14 comprises a first pushing part 141 and a second pushing part 142 which are connected, the first pushing part 141 is connected with the first pushing block 11, and the second pushing part 142 is connected with the second pushing block 12; the first auxiliary pushing block 14 can move in a direction perpendicular to the first positioning surface 201, so that the first pushing portion 141 can apply a force to the first pushing block 11 in a direction perpendicular to the first positioning surface 201 (i.e., push the first pushing block 11 to advance or retreat), and the second pushing portion 142 can apply a force to the second pushing block 12 in a direction perpendicular to the second positioning surface 202 (i.e., push the second pushing block 12 to advance or retreat). The first pushing block 11 and the second pushing block 12 can be pushed under the action of the first auxiliary pushing block 14, and then the pressing and positioning of the first positioning surface 201 and the second positioning surface 202 are completed.

The first pushing block 11 and the second pushing block 12 each include a connecting portion 124 for slidably connecting with the fixing component 10a and a pushing portion 125 for pushing and pressing the positioning surface, as seen in fig. 4; the pushing portion 125 has a hole 126, the hole 126 is a U-shaped hole and is disposed on one side of the pushing portion 125 away from the connecting portion 124, and the hole facilitates processing the first workpiece 200 and the second workpiece 300 after being positioned. For convenience of understanding, only the second pushing block 12 is labeled in fig. 4, and the following structures represented on the first pushing block 11 and the second pushing block 12 are consistent.

A buffer inclined plane 127 is arranged at the intersection of one surface of the pushing part 125 for pressing the third positioning surface 203 and one surface of the pushing part 125 for pushing the first positioning surface 201/the second positioning surface 202. The buffer inclined plane 127 can ensure that the first push block 11 and the second push block 12 can conveniently move to the position above the third positioning surface 203 of the first workpiece 200 when moving to the position of the first workpiece 200, so as to reduce the scratch on the third positioning surface 203.

Fig. 5 is an exploded perspective view of the cover mechanism 10 according to an embodiment of the present application, which has a positioning elastic member structure in this embodiment, where the positioning elastic member includes a first positioning elastic member 111 and a second positioning elastic member 121. Because first ejector pad 11 and second ejector pad 12 respectively with fixed subassembly 10a sliding connection, fixed subassembly 10a and first ejector pad 11 of elastic connection respectively in the both ends of first location elastic component 111, fixed subassembly 10a and second ejector pad 12 of elastic connection respectively in the both ends of second location elastic component 121, third locating surface 203 is parallel with bottom plate 21. Specifically, in the present embodiment, the first positioning elastic member 111 and the second positioning elastic member 121 are both springs.

When the workpiece pushing device works, the second workpiece 300 is positioned on the bottom plate 21, the first workpiece 200 is placed at a preset position on the second workpiece 300, the first positioning elastic piece 111 applies force to the first pushing block 11, and the first pushing block 11 is pushed to move along the first direction X and press the first positioning surface 201; the second positioning elastic member 121 applies force to the second pushing block 12 to move the second pushing block 12 along the second direction Y and press the second positioning surface 202, so as to position the first workpiece 200 and the second workpiece 300.

With continued reference to fig. 5, it can be seen that the first push block 11 is provided with a first movable slot 113, and the first push portion 141 of the first auxiliary push block 14 is partially embedded in the first movable slot 113 to achieve connection with the first movable slot 113; the second pushing block 12 is provided with a second movable groove 123, one end of the second pushing portion 142 includes two force application inclined planes 1422, the second movable groove 123 includes two force application inclined planes 1231, and the force application inclined plane 1422 abuts against the force application inclined plane 1231. When the first auxiliary pushing block 14 applies force to the first pushing block 11 to press the first pushing block on the first positioning surface 201, the first pushing portion 141 is partially embedded in the first movable groove 113, and the first pushing portion 141 pushes the first pushing block 11 to move forward; the second pushing portion 142 pushes a force-applying slant surface 1231 in the second movable slot 123 through a force-applying slant surface 1422, so that the second pushing block 12 moves toward the first workpiece 200 and presses the second positioning surface 202. When the first auxiliary pushing block 14 moves towards the direction away from the positioning surface, the first pushing portion 141 pulls the first pushing block 11 to move backward, and the second pushing portion 142 pushes another force-applying inclined surface 1231 in the second movable groove 123 through another force-applying inclined surface 1422, so that the second pushing block 12 is away from the second positioning surface 202.

The first auxiliary pushing block 14 further includes a first elastic restoring member 1411 and a second elastic restoring member 1421; both ends of the first restoring elastic member 1411 are elastically connected to the fixing plate 13 and the first pushing part 141, respectively; the two ends of the second elastic restoring member 1421 are respectively elastically connected to the fixing plate 13 and the second pushing portion 142, and the first elastic restoring member 1411 and the second elastic restoring member 1421 can play a role in buffering when the first auxiliary pushing block 14 moves.

In this embodiment, the first restoring elastic member 1411 and the second restoring elastic member 1421 are both springs.

Referring to fig. 4 and 5, the plate covering mechanism 10 further includes a second auxiliary pushing block 19 slidably connected to the fixing component 10a, and the second auxiliary pushing block 19 is disposed in a sliding slot defined in the fixing plate 13 and is slidable in the sliding slot. The first auxiliary pushing block 14 is provided with a boss 143, and the boss 143 abuts against the second auxiliary pushing block 19 and can move in a direction perpendicular to the first positioning surface 201 under the pushing of the second auxiliary pushing block 19.

In another embodiment, the second auxiliary pushing block 19 is connected to the locking attachments 18, and can push the first auxiliary pushing block 14 to move when the two locking attachments 18 move towards each other, so as to further realize the pressing and positioning of the two workpieces in the horizontal plane (XY direction, to the first positioning surface 201 and the second positioning surface 202).

In another embodiment, the second auxiliary pushing block can be pushed by an external manipulator to push the first auxiliary pushing block 14 to move, and further push the first pushing block 11 and the second pushing block 12 to move, so as to further realize the pressing of the two workpieces in the XY directions (to the first positioning surface 201 and the second positioning surface 202).

Referring to fig. 5, the cover mechanism 10 further includes two symmetrically disposed movable locking attachments 18, and the two locking attachments 18 are slidably disposed on the fixing component; the bottom plate 21 is provided with a matching inclined surface 22 (shown in fig. 2 and 6) for matching with the locking accessory 18, and the locking accessory 18 can be clamped with the matching inclined surface 22 and locked on the bottom plate 21.

When the locking member 18 is engaged with and locked to the bottom plate 21, the pressing member 10b is driven to move toward the bottom plate 21 to press the third positioning surface 203, so that the third positioning surface 203 is attached to the second workpiece 300.

It should be noted that in the present embodiment, the positioning surface does not specifically refer to a surface of the first workpiece 200 facing the second workpiece 300 or a surface thereof facing away from the second workpiece 300, but substantially refers to a side of the first workpiece 200 that can be attached to the second workpiece 300, and therefore the positioning surface may also be referred to as a positioning side.

With continued reference to fig. 5, the locking attachment 18 includes a sliding portion 181 and a locking attachment portion 183 connected; the sliding part 181 is slidably disposed on the fixing component, the sliding part 181 is connected to the fixing component through the locking elastic member 184, and the locking elastic member 184 can apply force to the sliding part 181 to move the two symmetrical locking members 18 toward each other.

Fig. 6 is a cross-sectional view of the positioning device of fig. 1 taken along line VI-VI. Fig. 6 shows that the lock attachment 18 is provided with two left and right lock attachment inclined surfaces 1831, the lock attachment inclined surfaces 1831 are used for matching with the matching inclined surface 22 on the bottom plate 21, and the sliding portion 181 slides to drive the lock attachment portion 183 to move so that the lock attachment portion 183 engages with the bottom plate 21.

The utility model provides a positioner 100 is used for pressing first work piece 200 and second work piece 300 and holds the location, holds the location for realizing more effectual pressure, and during the use, positioner 100 locates between first arm and the second arm usually. The first mechanical arm comprises a clamping claw, the clamping claw pulls the boss and drives the first push block 11 and the second push block 12 to be far away from the first workpiece 200, and when the clamping claw is loosened, the first push block 11 and the second push block 12 move towards the first workpiece 200 under the action of the spring to realize XY direction positioning.

The second robot arm comprises a gripper claw for moving the base plate to move the base plate 21 towards the cover mechanism 10 for Z-positioning. When the second mechanical arm is actuated, the elastic limiting member 131 is compressed, and the bottom plate 21 and the cover plate mechanism 10 are tightly fastened. Because the elastic limiting part exists, the Z-direction positioning compression ratio is delayed from the XY direction, and therefore scratches on the Z-direction positioning surface can be reduced.

The implementation process of the embodiment includes the following stages:

a preparation stage: firstly, a second workpiece 300 is placed on the bottom plate 21 to be fixed; then, the first workpiece 200 is placed on the second workpiece 300, and each positioning surface to be positioned on the first workpiece 200 is close to the corresponding surface of the second workpiece 300. At this time, the clamping claw of the first mechanical arm acts to grab the cover plate mechanism 10. The clamping claw comprises three claws, two claws spread the two locking accessories 18 outwards, and the third claw pulls the boss 143, so that the boss 143 drives the first push block 11 and the second push block 12 to move towards the direction far away from the first positioning surface 201 and the second positioning surface 202.

Primary positioning: the clamping paw of the first mechanical arm grabs the cover plate mechanism 10 and then loosens after moving to the upper side of the bottom plate 21, after the boss 143 is loosened, under the action of the first positioning elastic part 111, the second positioning elastic part 121, the first reset elastic part 1411 and the second reset elastic part 1421, the first push block 11 resets and moves towards the direction of the first positioning surface 201, and the second push block 12 moves towards the direction of the first positioning surface 201, so that the first positioning surface 201 and the second positioning surface 202 are pressed, namely, the XY direction is pressed.

Meanwhile, the two locking attachments 18 move towards each other, the locking inclined plane 1831 on the locking portion 183 matches with the matching inclined plane 22 on the bottom plate 21, and the sliding portion 181 drives the locking portion 183 to move so that the locking portion 183 is engaged with the bottom plate 21. In the clamping process, the cover plate mechanism 10 drives the first pushing block 11 and the second pushing block 12 to move downwards, so that the third positioning surface 203 is pressed and combined, and the positioning in the Z direction is realized (the displacement in the Z direction is small and the pressing is not realized).

The XY-direction positioning and the preliminary deformation correction of the first workpiece 200 are mainly completed in one positioning process.

Secondary positioning: the cover plate mechanism 10 is fixed, the second mechanical arm drives the clamping paw to operate, the jig bottom plate is lifted upwards, the bottom plate 21 moves towards the cover plate mechanism 10, the locking of the locking inclined plane 1831 and the matching inclined plane 22 on the bottom plate 21 is further completed, the bottom plate 21 and the cover plate mechanism 10 move in opposite directions in the locking process, and the first push block 11 and the second push block 12 are further driven to compress the first workpiece in the Z direction. The Z-direction positioning and deformation correction of the workpiece can be realized in the secondary positioning process.

Through the working process of the scheme, the first workpiece 200 and the second workpiece 300 can be pressed in the XYZ directions, the final pressing in the Z direction is performed at the end, and the scratch on the third positioning surface 203 can be reduced.

In other embodiments, if the second auxiliary pushing block 19 is provided, the second auxiliary pushing block 19 and further the boss 143 can be pushed by an external force, so as to indirectly push the first pushing block 11 and the second pushing block 12 to move, thereby realizing secondary positioning in the XY direction.

In other embodiments, the second auxiliary pushing block 19 is connected to the locking attachment 18, the locking attachment 18 and the bottom plate 21 are moved in opposite directions during the buckling process during the secondary positioning, and the second auxiliary pushing block 19 can indirectly push the first pushing block and the second pushing block to move by pushing the boss 143, so that the XY-direction compression is realized, and the deformation of the first workpiece 200 is further corrected. However, compared with the scheme of firstly performing Z-direction compression and then performing XY-direction compression in the prior art, the embodiment can still effectively reduce scratches on the Z surface (the third positioning surface 203).

The positioning device 100 applies a force to the pressing component through the positioning elastic member, so that the pressing component presses at least one positioning surface of the first workpiece 200, and the positioning surface is attached to the fixed second workpiece 300. Compared with the prior art, the positioning device 100 has the characteristics of simple structure, convenience in operation and low cost, can position a plurality of surfaces simultaneously, realizes stable positioning of the first workpiece 200 and the second workpiece 300, has a good positioning effect, and facilitates subsequent processing. The traditional positioning mode is usually to position the bottom surface first, then to position the side, because the bottom surface has already been fixed a position and has compressed tightly, produces the scratch to the bottom surface when fixing a position the side easily. The scheme can position the side face in advance, and not position the side face after positioning the bottom face, so that the problems can be effectively solved, and the bottom face of a product is prevented from being scratched.

In addition, those skilled in the art should recognize that the above embodiments are illustrative only, and not limiting, and that suitable modifications and variations to the above embodiments are within the spirit and scope of the invention as claimed.

Claims

1. A positioning device for positioning a first workpiece and a second workpiece, the first workpiece being disposed adjacent to the second workpiece, and the first workpiece including at least one positioning surface that is attachable to the second workpiece, the positioning device comprising:

a base plate for fixing the second workpiece;

the cover plate mechanism is movably covered on the bottom plate and comprises a fixing component, a pressing component and a positioning elastic piece, the pressing component is in sliding connection with the fixing component, two ends of the positioning elastic piece are respectively in elastic connection with the fixing component and the pressing component, the pressing component is arranged on one side of the positioning surface of the first workpiece, and the positioning elastic piece can apply force to the pressing component so as to enable the pressing component to be pressed on the positioning surface, and the first workpiece is attached to the second workpiece.

2. The positioning device of claim 1, wherein: the positioning surface comprises a first positioning surface and a second positioning surface;

the pressing and holding assembly comprises a first pushing block and a second pushing block, the first pushing block and the second pushing block are respectively arranged on one side of the first positioning surface and one side of the second positioning surface, and the positioning elastic piece comprises a first positioning elastic piece and a second positioning elastic piece; the first pushing block and the second pushing block are respectively in sliding connection with the fixed assembly, two ends of the first positioning elastic piece are respectively in elastic connection with the fixed assembly and the first pushing block, and two ends of the second positioning elastic piece are respectively in elastic connection with the fixed assembly and the second pushing block.

3. The positioning device of claim 2, wherein: the first workpiece further comprises a third positioning surface, the third positioning surface is parallel to the bottom plate, and the third positioning surface is perpendicular to the first positioning surface and the second positioning surface; and the bottoms of the front ends of the first push block and the second push block are used for applying force to the third positioning surface to enable the third positioning surface to be attached to the second workpiece.

4. The positioning device of claim 1, wherein: the positioning surface comprises a first positioning surface and a third positioning surface, the first positioning surface is perpendicular to the third positioning surface, and the third positioning surface is parallel to the bottom plate; and the bottom of the pressing and holding assembly is used for applying force to the third positioning surface to enable the third positioning surface to be attached to the second workpiece.

5. The positioning device of claim 2, wherein: the cover plate mechanism further comprises a first auxiliary pushing block, the first auxiliary pushing block comprises a first pushing part and a second pushing part which are connected, the first pushing part is connected with the first pushing block, and the second pushing part is connected with the second pushing block;

6. The positioning device of claim 5, wherein: the first positioning surface is perpendicular to the second positioning surface, and the first pushing part is perpendicular to the second pushing part;

7. The positioning device of claim 5, wherein: the fixing assembly comprises a fixing plate, and a first positioning block, a second positioning block and a third positioning block which are arranged on the fixing plate; the first positioning block, the second positioning block and the third positioning block are respectively provided with a sliding groove;

the first push block, the second push block and the first auxiliary push block are respectively arranged in sliding chutes in the first positioning block, the second positioning block and the third positioning block in a sliding mode.

8. The positioning device of claim 5, wherein: the cover plate mechanism further comprises a second auxiliary push block in sliding connection with the fixing component; the first auxiliary pushing block is provided with a boss, the boss is abutted to the second auxiliary pushing block and can move in the direction perpendicular to the first positioning surface under the pushing of the second auxiliary pushing block.

9. The positioning device of claim 7, wherein: the first auxiliary push block further comprises a first reset elastic piece and a second reset elastic piece;

10. The positioning apparatus of claim 3, wherein: the first push block and the second push block respectively comprise a connecting part and a pushing part, the connecting part is used for being in sliding connection with the fixed component, and the pushing part is used for pushing the positioning surface; the pushing part is provided with a yielding hole which is a U-shaped hole and is formed in one side, far away from the connecting part, of the pushing part;

11. The positioning device of claim 1, wherein: the cover plate mechanism further comprises movable locking accessories which are symmetrically arranged, and the locking accessories are arranged on the fixed component in a sliding mode;

12. The positioning apparatus of claim 11, wherein: the locking accessory comprises a sliding part and a locking accessory part;

13. The positioning apparatus of claim 1, wherein: the cover plate mechanism further comprises an elastic limiting part, wherein the elastic limiting part is arranged on one surface, facing the bottom plate, of the fixing assembly and used for limiting the distance between the fixing assembly and the bottom plate.

14. The positioning apparatus of claim 11, wherein: the positioning device is arranged between the first mechanical arm and the second mechanical arm;