CN213135898U

CN213135898U - Positioning device

Info

Publication number: CN213135898U
Application number: CN202021768098.2U
Authority: CN
Inventors: 王向东
Original assignee: Freewon China Co Ltd
Current assignee: Freewon China Co Ltd
Priority date: 2020-08-22
Filing date: 2020-08-22
Publication date: 2021-05-07
Anticipated expiration: 2030-08-22

Abstract

The utility model discloses a positioning device relates to work piece location field. The utility model comprises a limiting strip (1), a positioning piece (2), a cover plate (4) and a limiting piece (5), wherein the limiting piece (5) comprises a resistance part (51), a cylindrical part (52) and a limiting part (53), the resistance part (51) is connected with the limiting part (53) through the cylindrical part (52); through controlling the size of each component of the limiting piece (5), the resistance part (61) restricts the displacement of the cover plate (4) in the front-back direction, and the auxiliary limiting strip (1) achieves the positioning effect on the workpiece. Compared with the traditional screw fixation and disassembly, the utility model discloses need not to use supplementary extracting tool, improved production machining efficiency greatly.

Description

Positioning device

Technical Field

The utility model relates to a work piece location field, concretely relates to positioner.

Background

In the production process, it is often necessary to position a workpiece for a process such as CNC (computer numerical control precision machine) machining or product measurement. The common positioning device principle is that the limiting device is used for restricting the movement of a product in all directions so as to achieve the effect of limiting displacement, the device realizes the fixation between the limiting device and the limiting device by using screws, when the product needs to be fixed or disassembled, the screws need to be screwed or loosened by using an additional tool, and the working efficiency is not high.

SUMMERY OF THE UTILITY MODEL

The utility model provides a positioning device makes positioning device need not extra appurtenance and can accomplish the location, the utility model discloses a scheme be: a positioning device is characterized by comprising a limiting strip, a positioning piece, a cover plate and a limiting piece;

the limiting strip is arranged on one side of the positioning piece and is fixed in the front-back direction; the limiting strip comprises an accommodating groove;

the positioning piece comprises an inlet, the inlet penetrates through the positioning piece from front to back, the inlet is configured to prevent a workpiece from being separated from the positioning piece from inside to top, and the inlet is configured to restrain the workpiece in the up-down direction or the up-down and back directions;

the cover plate is arranged on the upper surface of the positioning piece and covers the inlet, and the cover plate comprises a first matching groove;

the limiting piece comprises a resistance part, a cylindrical part and a limiting part;

the resistance part is connected with the limiting part through the cylindrical part, and the cylindrical part is in clearance fit with the first matching groove; the limiting part can pass through the first matching groove, and the length of the cylindrical part is configured to be incapable of moving forwards and backwards when the limiting part is in a working state;

the working state of the limiting part is as follows: the limiting part passes through the first matching groove and is contacted with the lower surface of the positioning part.

In another preferred scheme, the limiting strip further comprises a countersink, the positioning piece further comprises a screw hole, and the limiting strip 1 is connected with the positioning piece through a fixing piece which is simultaneously arranged in the countersink and the screw hole in a penetrating manner.

Still another preferred scheme is, spacing still includes the guiding hole, the setting element still includes the guide post, the guide post with setting element fixed connection, the guiding hole with the guide post cooperation.

Still another preferred scheme is, still include and support the piece, support the piece and include the second cooperation groove, support the piece setting in the rear side of setting element sets up the rear side of setting element, and its position is configured as sheltering from the opening of entry on the setting element rear surface, and does not take place the interference with first locating part.

Still another preferred scheme is that the positioning device further comprises a base, and the positioning piece further comprises an observation groove; the base is connected with the positioning piece; the opening of the observation groove faces upwards.

Still preferably, the stopper is configured not to enter the first fitting groove.

Still another preferred scheme is, still include the elastic component, the elastic component sets up the upper surface of setting element or the elastic component sets up the lower surface of apron, the elastic component does not interfere with the entry, and provides elasticity in the upper and lower direction.

Still another preferred scheme is, still include the magnetism portion, and the locating part comprises ferromagnetic material, magnetism portion sets up in first cooperation groove week side.

In another preferred embodiment, the inlet penetrates through the upper surface of the positioning member, and the shape of the intersection of the inlet and the rear side surface of the positioning member does not allow the end of the entering workpiece to pass through.

In another preferred scheme, the surface of the limiting strip, which is far away from the positioning piece, is connected with the accommodating groove through a fillet.

The utility model has the advantages that: compared with the traditional screw fixing and dismounting method, the fixing and positioning and convenient dismounting of the workpiece can be completed without using an auxiliary dismounting tool, and the production and processing efficiency is greatly improved.

Drawings

FIG. 1 is a schematic diagram of the front structure of the device according to the embodiment;

FIG. 2 is a schematic view of a part of the apparatus of the embodiment;

FIG. 3 is a schematic diagram of a back structure of the device according to the embodiment;

the reference numbers in the figures illustrate: A. a workpiece; 1. a limiting strip; 11. accommodating grooves; 12. a guide hole; 13. a countersink; 2. a positioning member; 21. an inlet; 22. an observation tank; 23. a screw hole; 24. a guide post; 3. a base; 4. a cover plate; 41. a first mating groove; 5. a limiting member; 51. a resistance part; 52. a cylindrical portion; 53. a limiting part; 6. a resisting part; 61. a second mating groove; 7. a spring.

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.

Examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1 to 3, in the present embodiment, the workpiece a is a substantially U-shaped special-shaped member. The device comprises a limiting strip 1, a positioning piece 2, a base 3, a cover plate 4, a limiting piece 5, a butting piece 6 and a spring 7.

The limiting strip 1 is integrally similar to a cuboid and is arranged on the front side of the positioning piece 2 and comprises a containing groove 11, a guide hole 12 and a countersink 13;

the accommodating groove 11 is a shape imitating the shape of the workpiece a. In order to reduce the gouging probability when the workpiece A is placed into the accommodating groove 11, the connection mode of the surface of the limiting strip 1, which is far away from the positioning piece 2, and the accommodating groove 11 is designed into a fillet form. The limiting strip 1 can prevent the workpiece A from excessively shaking due to stress in the machining process;

the guide hole 12 is formed in the position where the limiting strip 1 does not interfere with the accommodating groove 11;

the countersinks 13 are provided at positions that do not interfere with both the pilot holes 12 and the receiving grooves 11.

The positioning member 2 comprises an inlet 21, a viewing slot 22, a threaded hole 23 and a guide post 24. The inlet 21 is arranged above the limiting strip 1, penetrates through the positioning piece 2 from front to back and simultaneously penetrates through the upper surface of the positioning piece 2, and the inlet 21 is used for completing the primary positioning of the workpiece A and limiting the workpiece A in the vertical direction; specifically, as shown in fig. 1, the inlet 21 is provided to have a contoured shape that allows the workpiece a to enter and not to come out from the upper surface of the positioner 2; in the present embodiment, the shape in which the inlet 21 intersects with the rear side surface of the spacer 2 is the same as the shape in which the inlet 21 intersects with the front side surface of the spacer 2;

alternatively, the intersection shape of the inlet 21 and the rear side surface of the positioning member 2 and the intersection shape of the inlet 21 and the front side surface of the positioning member 2 may be different shapes, so that the end of the workpiece a cannot be exposed to the rear side surface of the positioning member 2 although the workpiece a can be inserted into the inlet 21 from the front side; therefore, the movement restriction of the workpiece A in the up-down direction and the rear direction can be completed only by inserting the workpiece A into the inlet 21 until the workpiece A cannot be pushed;

alternatively, the inlet 21 is directly set to the shape of the workpiece a, so that the workpiece a penetrates through the positioning member 2 from front to back, but does not interfere with the upper surface of the positioning member 2, and thus the above-mentioned constraint effect can be achieved;

the observation groove 22 penetrates through the right side surface of the positioning member 2 with the left side surface of the positioning member 2 as a starting point, and simultaneously penetrates through the contact surface 23, and the observation groove 22 is used for facilitating an operator to observe the insertion condition of the workpiece a;

a screw hole 23 is arranged on the front side surface of the positioning piece 2, and the screw hole 23 is used for matching with the countersink 13 so that a fixing piece (not shown in the figure) can simultaneously penetrate through the screw hole and the countersink 13 to achieve the effect of fixing the limiting strip 1;

the guide post 24 is fixedly connected with the front side surface of the positioning element 2, and can be matched with the guide hole 12 to achieve the installation effect of the guide limit strip 1, specifically, the matching relation can be clearance fit, transition fit or interference fit.

The base 3 is connected to the positioning element 2, and the function of the base is to improve the stability of the device, in this embodiment, the connection between the base 3 and the positioning element 2 is a rivet connection (the rivet is not shown in the drawings).

In the present embodiment, a cover plate 4 is provided to cover the upper surface of the positioner 2 to restrain the displacement of the workpiece a in each direction. The cover plate 4 includes a first fitting groove 41, the first fitting groove 41 being provided on the upper surface of the cover plate 4 while penetrating the upper and lower surfaces of the cover plate 4;

the limiting member 5 comprises a resistance part 51, a cylindrical part 52 and a limiting part 53; the stopping portion 51 is connected with the limiting portion 53 through the cylindrical portion 52, so that the limiting portion 53 can rotate along with the stopping portion 51 by rotating the stopping portion; the cylindrical portion 52 is in clearance fit with the first fitting groove 41, and the limiting portion 53 is in clearance fit with the first fitting groove 41; the length of the cylindrical portion 52 is configured such that the stopper portion 51 cannot move up and down when the stopper portion 53 is in an operating state;

here, the operating state of the stopper 53 means: when the position-limiting portion 53 is in the operating state, the position-limiting portion 53 passes through the first engaging groove 41 and contacts the lower surface of the positioning member 2. Thus, when the limiting part 53 enters the working state, the limiting part 5 can limit the displacement of the workpiece a;

preferably, by controlling the size and shape of the stopper 51 so that it cannot enter the first engagement groove 41, it is advantageous for the operator to judge the timing of rotating the stopper 51.

The abutting member 6 is disposed at the rear side of the positioning member 2, and is located at a position configured to block the opening of the inlet 21 on the rear surface of the positioning member 2, and is provided with a second engaging groove 61 having the same shape as the first engaging groove 41, so that the abutting member itself does not obstruct the movement of the limiting member 5.

Alternatively, the abutting member 6 is disposed at the rear side of the cylindrical portion 52, so that the abutting member 6 does not obstruct the movement of the limiting member 5;

optionally, in summary, the limiting member 5 may also be made of a ferromagnetic material, and the circumferential sides of the first matching grooves 41 are provided with insertion-type magnetic strips to assist the limiting portion 53 to quickly enter the working state.

As shown in fig. 2, the spring 7 is disposed on the upper side surface of the positioning member 2 and does not interfere with the inlet 21, and when the cover plate 4 is mounted on the positioning member 2 and the limiting portion 53 enters the working state, the spring 7 provides elastic force in the up-down direction to facilitate the movement restriction of the cover plate 4 in the left-right direction;

alternatively, the spring 7 may be disposed on the lower surface of the cover plate 4 without interfering with the inlet 21, so as to achieve the effect of restricting the movement of the cover plate 4 in the left-right direction.

In summary, the working steps of this embodiment are:

1. fixing the limiting strip 1 by using a fixing piece under the guide of the guide hole 12, the counter bore 13, the screw hole 23 and the guide column 24, wherein the limiting strip 1 does not need to be detached along with the loading and unloading of the workpiece A;

2. putting a plurality of workpieces A;

3. mounting the cover plate 4 and making the limiting part 53 enter a working state; preferably, the cylindrical portion 52 is pushed to the end of the first fitting groove 41, which is more beneficial for the limiting member 5 to restrain the cover plate 4;

4. and finishing fixing and positioning, and performing subsequent processing.

Claims

1. A positioning device is characterized by comprising a limiting strip (1), a positioning piece (2), a cover plate (4) and a limiting piece (5);

the limiting strip (1) is arranged on one side of the positioning piece (2) and is fixed in the front-back direction; the limiting strip (1) comprises an accommodating groove (11);

the positioning piece (2) comprises an inlet (21), the inlet (21) penetrates through the positioning piece (2) from front to back, the inlet (21) is configured to prevent a workpiece (A) from being separated from the positioning piece (2) from the inside to the top, and the inlet (21) is configured to restrain the workpiece (A) in the up-down direction or the up-down and back directions;

the cover plate (4) is arranged on the upper surface of the positioning piece (2) and covers the inlet (21), and the cover plate (4) comprises a first matching groove (41);

the limiting piece (5) comprises a resistance part (51), a cylindrical part (52) and a limiting part (53);

the resistance part (51) is connected with the limiting part (53) through the cylindrical part (52), and the cylindrical part (52) is in clearance fit with the first matching groove (41); the limiting part (53) can pass through the first matching groove (41), and the length of the cylindrical part (52) is configured to prevent the cylindrical part (52) from moving forwards and backwards when the limiting part (53) is in a working state;

the working state of the limiting part (53) is as follows: the limiting part (53) passes through the first matching groove (41) and contacts with the lower surface of the positioning piece (2).

2. The positioning device according to claim 1, wherein the position-limiting strip (1) further comprises a countersink (13), the positioning member (2) further comprises a screw hole (23), and the position-limiting strip (1) is connected with the positioning member (2) through a fixing member which is simultaneously inserted into the countersink (13) and the screw hole (23).

3. The positioning device according to claim 1, wherein the position-limiting strip (1) further comprises a guide hole (12), the positioning member (2) further comprises a guide post (24), the guide post (24) is fixedly connected with the positioning member (2), and the guide hole (12) is matched with the guide post (24).

4. The positioning device according to claim 1, further comprising an abutting member (6), wherein the abutting member (6) comprises a second fitting groove (61), and the abutting member (6) is disposed at the rear side of the positioning member (2) and at the rear side of the positioning member (2) at a position configured to block the opening of the inlet (21) on the rear surface of the positioning member (2) and not interfere with the first positioning member (5).

5. The positioning device according to claim 1, characterized in that it further comprises a base (3) and in that said positioning element (2) further comprises a viewing slot (22); the base (3) is connected with the positioning piece (2); the opening of the observation groove (22) faces upwards.

6. The positioning device according to claim 1, characterized in that the resistance portion (51) is configured to be unable to enter the first fitting groove (41).

7. The positioning device according to claim 1, further comprising an elastic member (7), wherein the elastic member (7) is provided on an upper surface of the positioning member (2) or the elastic member (7) is provided on a lower surface of the cover plate (4), and the elastic member (7) does not interfere with the inlet (21) and provides an elastic force in an up-and-down direction.

8. The positioning device according to claim 1, further comprising a magnetic portion, and wherein the retaining member (5) is made of a ferromagnetic material, and wherein the magnetic portion is disposed on a periphery side of the first fitting groove (41).

9. The positioning device according to claim 1, characterized in that the inlet (21) penetrates the upper surface of the positioning member (2), and the shape of the intersection of the inlet (21) with the rear side surface of the positioning member (2) is such that the end of the entering workpiece cannot pass.

10. The positioning device according to claim 1, characterized in that the surface of the limiting strip (1) remote from the positioning element (2) is connected with the accommodating groove (11) by a rounded corner.