CN212653316U

CN212653316U - Positioning jig

Info

Publication number: CN212653316U
Application number: CN202021218735.9U
Authority: CN
Inventors: 佘小栋; 夏伟强; 吴泳峰
Original assignee: Dongguan Huabei Electronic Technology Co Ltd
Current assignee: Dongguan Huabei Electronic Technology Co Ltd
Priority date: 2020-06-28
Filing date: 2020-06-28
Publication date: 2021-03-05
Anticipated expiration: 2030-06-28

Abstract

The utility model discloses a positioning jig, which comprises a sleeve, a mandril and a breather pipe, wherein the sleeve is provided with a hollow structure which is penetrated through from front to back so that the sleeve is provided with a front end opening and a rear end opening; the side wall of the sleeve is also provided with a vent hole, and the vent pipe is connected with the vent hole; the ejector rod can be slidably arranged in the hollow structure in a penetrating mode, the top of the ejector rod extends out of the opening at the front end, the ejector rod further comprises a needle rod which penetrates through the opening at the rear end, the ejector rod slides relative to the sleeve to form a first position and a second position, when the ejector rod is located at the first position, the top of the ejector rod is separated from the top of the sleeve in the front-back direction, and the tail of the needle rod is separated from the opening at the rear end in the front-back direction; when the ejector rod is located at the second position, the ejector rod abuts against the top of the sleeve, and the needle rod is flush with the rear end opening and extends out of the rear end opening. Adopt tweezers to press from both sides the mode of getting with traditional manual work and compare, the utility model discloses a positioning jig has the simple operation, improves the advantage of assembly efficiency and uniformity.

Description

Positioning jig

Technical Field

The utility model relates to a wearable equipment makes the field, especially relates to a positioning jig.

Background

A wearable device is a portable device that is worn directly on the body or integrated into the clothing or accessories of the user. The wearable device is not only a hardware device, but also realizes powerful functions through software support, data interaction and cloud interaction. Along with the development of science and technology and the progress of humanity, wearable equipment obtains consumer's favor gradually because it has powerful function and small and exquisite light volume, provides more convenient efficient life experience for the consumer.

Because wearing equipment small in size, the part is meticulous, so it need face the problem of location in the manufacturing process, and good positioning jig can reduce installation error, reduces the loss after sale. The existing wearable equipment is positioned by pins under the condition of limited space. But the pin itself is little, and the pin is difficult to take and assemble, and the location mode is got to the tradition and is adopted the manual work to take the tweezers to get. Therefore, the traditional fetching and positioning mode has the defects of low operation efficiency, poor consistency, falling risk and after-sale risk.

Therefore, there is a need for a positioning jig with convenient operation and improved assembly efficiency and consistency to overcome the above-mentioned drawbacks.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a simple operation, improve positioning jig of assembly efficiency and uniformity.

In order to achieve the above purpose, the positioning jig of the present invention comprises a sleeve, a mandril and a breather pipe for connecting with an air suction device, wherein the sleeve is provided with a hollow structure which penetrates through the front and the back of the sleeve, the hollow structure penetrates through the front end of the sleeve to make the sleeve have a front end opening, and the hollow structure penetrates through the back end of the sleeve to make the sleeve have a back end opening; the side wall of the sleeve is also provided with a vent hole communicated between the outside and the hollow structure, and the vent pipe is connected with the vent hole; the ejector rod can be slidably arranged in the hollow structure in a penetrating mode, the top of the ejector rod extends out of the front end opening, the ejector rod further comprises a needle rod used for penetrating through the rear end opening, the ejector rod slides relative to the sleeve to be provided with a first position and a second position, when the ejector rod is located at the first position, the top of the ejector rod is separated from the top of the sleeve in the front-back direction, and the tail of the needle rod is separated from the rear end opening in the front-back direction; when the ejector rod is located at the second position, the top of the ejector rod abuts against the top of the sleeve, and the tail of the needle rod is flush with or extends out of the rear end opening.

Preferably, the utility model discloses a positioning jig still includes the elastic component, the elastic component is located hollow structure is interior and cup joint in on the needle bar, the elastic component has the trend of ordering about the ejector pin is located the first position forever.

Preferably, the top rod has an annular stepped structure, the top end of the elastic member abuts against the stepped structure, the hollow structure has an annular stepped hole structure, and the bottom end of the elastic member abuts against the stepped hole structure.

Preferably, the elastic member is a spring.

Preferably, the ejector rod sequentially comprises a sliding rod and the needle rod along the front-back direction, the outer diameter of the sliding rod is larger than that of the needle rod, and a step structure is formed at the joint of the sliding rod and the needle rod.

Preferably, the ejector rod further comprises a blocking disc, the blocking disc is arranged at the top of the sliding rod, and when the ejector rod is located at the second position, the blocking disc blocks the top of the sleeve.

Preferably, the hollow structure sequentially comprises a first through hole and a second through hole from front to back, the aperture size of the first through hole is larger than that of the second through hole, and a stepped hole structure is formed at the joint of the first through hole and the second through hole.

Preferably, a gap is formed between the outer wall of the needle rod and the inner wall of the first through hole, the vent hole is communicated with the gap, and the vent hole is positioned on the side wall of the sleeve relatively close to the rear end opening.

Preferably, the needle bar is inserted into the second through hole, and the needle bar and the second through hole are in transition fit or clearance fit.

Preferably, when the needle bar is located at the first position, the distance between the bottom of the needle bar and the rear end opening is greater than or equal to the length of the positioning piece.

Compared with the prior art, the utility model discloses a hollow structure that runs through around the positioning jig is equipped with the help of the sleeve has front end opening and rear end opening, telescopic vent department has still connect a breather pipe, hollow structure is arranged in to ejector pin slidable, the ejector pin has primary importance and second place, after getter device starts, thereby the rear end opening adsorbs the setting element to hollow structure in for negative pressure state, the top in the ejector pin is exerted force to people, thereby promote the setting element, thereby assemble the setting element on electronic product accurately conveniently. Adopt tweezers to press from both sides the mode of getting with traditional manual work and compare, the utility model discloses a positioning jig has the simple operation, improves the advantage of assembly efficiency and uniformity.

Drawings

Fig. 1 is a schematic view of the three-dimensional structure of the positioning fixture of the present invention.

Fig. 2 is a schematic view of the overlooking structure of the positioning fixture of the present invention.

Fig. 3 is a schematic sectional view taken along section line a-a in fig. 2.

Detailed Description

In order to explain technical contents and structural features of the present invention in detail, the following description is made with reference to the embodiments and the accompanying drawings.

Referring to fig. 1 to 3, the positioning fixture 100 of the present invention includes a sleeve 1, a rod 2 and a tube 3 for connecting with an air suction device. The sleeve 1 is provided with a hollow structure 11 penetrating through the front and the back, the hollow structure 11 penetrates through the front end of the sleeve 1 to enable the sleeve 1 to be provided with a front end opening 12, and the hollow structure 11 penetrates through the back end of the sleeve 1 to enable the sleeve 1 to be provided with a back end opening 13. The side wall of the sleeve 1 is also provided with a vent hole 14 communicated with the outside and the hollow structure 11, and the vent pipe 3 is connected with the vent hole 14. The ejector rod 2 is slidably arranged in the hollow structure 11 in a penetrating manner, the top of the ejector rod 2 extends out of the front end opening 12, the ejector rod 2 further comprises a needle rod 22 which penetrates through the rear end opening 13, the ejector rod 2 slides relative to the sleeve 1 to have a first position and a second position, when the ejector rod 2 is located at the first position, the top of the ejector rod 2 is separated from the top of the sleeve 1 in the front-back direction, and the tail of the needle rod 22 is separated from the rear end opening 13 in the front-back direction; when the ejector rod 2 is located at the second position, the top of the ejector rod 2 abuts against the top of the sleeve 1, and the needle rod 22 is flush with the rear end opening 13. Of course, in other embodiments, when the rod 2 is located at the second position, the tail of the needle rod 22 extends out of the rear opening 13, so the invention is not limited thereto. The air suction device is connected with the air suction device by virtue of the air pipe 3, when the air suction device works, air flow flows to the air pipe 3, the rear end opening 13 is in a negative pressure state, the ejector rod 2 is still at the first position, the tail part of the needle rod 22 is separated from the rear end opening 13 in the front-back direction, and the positioning element 200 can be sucked from the rear end opening 13 by utilizing the separated space, so that the positioning element 200 is placed in the separated space; the top of the top rod 2 is spaced from the top of the sleeve 1 in the front-rear direction, so that the user can push the top of the top rod 2 conveniently, and the positioning member 200 positioned at the rear end opening 13 can be pushed out to a position to be positioned. For example, the distance between the bottom of the needle rod 22 and the rear opening 13 is equal to the length of the positioning member 200, so as to reduce the volume of the sleeve 1, and make the internal space of the sleeve 1 reasonably utilized; of course, in other embodiments, the distance between the bottom of the needle shaft 22 and the rear opening 13 is greater than the length of the positioning member 200, so as to meet the positioning requirements of other occasions, and therefore the invention is not limited thereto. For example, in the present embodiment, the positioning element 200 is a positioning pin, and of course, in other embodiments, the positioning element 200 may be other columnar structures, so the disclosure is not limited thereto. More specifically, the following:

referring to fig. 3, the hollow structure 11 sequentially includes a first through hole 111 and a second through hole 112 from front to back, the aperture size of the first through hole 111 is larger than that of the second through hole 112, and an annular stepped hole structure 113 is formed at the junction of the first through hole 111 and the second through hole 112.

Referring to fig. 3, the top rod 2 sequentially includes a sliding rod 21 and a needle rod 22 along the front-back direction, the outer diameter of the sliding rod 21 is larger than that of the needle rod 22, and an annular step structure 24 is formed at the joint of the sliding rod 21 and the needle rod 22. The ejector rod 2 further comprises a resisting disc 23, the resisting disc 23 is arranged at the top of the sliding rod 21, and when the ejector rod 2 is located at the second position, the resisting disc 23 resists the top of the sleeve 1, so that the ejector rod 2 is limited, and the force application of the ejector rod 2 by a user next time is facilitated.

Referring to fig. 3, the vent hole 14 is located on the sidewall of the sleeve 1 relatively close to the rear end opening 13, so that the air pressure between the vent hole and the rear end opening is changed more rapidly, and the absorption of the positioning element 200 is accelerated. The outer wall of the needle rod 22 and the inner wall of the first through hole 111 have a gap therebetween, and the vent hole 14 is communicated with the gap, so that the negative pressure of the rear end opening 13 is greater, thereby helping the rear end opening 13 to suck the positioning member 200 into the hollow structure 11. Specifically, the needle bar 22 is inserted into the second through hole 112, and the needle bar 22 is in transition fit with the second through hole 112, so that the ejection motion of the needle bar 22 is a straight line, and the shaking of the pushing process of the needle bar 22 is prevented. It can be understood that the outer diameter of the positioning member 200 is smaller than or equal to the outer diameter of the second through hole 112. Specifically, the cross-sectional profile of the needle bar 22 and the shape profile of the rear end opening 13 are fitted to each other, thereby making the sliding of the carrier rod 2 smoother. For example, the needle shaft 22 is circular in cross section, and the shape of the rear end opening 13 is also circular in contour. Of course, in other embodiments, the cross-section of the needle shaft 22 may be square, rectangular or oval, and is not limited thereto.

Referring to fig. 3, the positioning fixture 100 of the present invention further includes an elastic member 4, the elastic member 4 is located in the hollow structure 11 and is sleeved on the needle rod 22, and the elastic member 4 always has a tendency to drive the carrier rod 2 to be located at the first position. For example, when a user applies a force to the top of the positioning member 200, the push rod 2 slides to push out the positioning member 200, and meanwhile, the elastic member 4 is compressed, and after the user removes the force, the elastic member 4 performs an elastic recovery motion to drive the push rod 2 to slide to the first position, thereby facilitating the next operation of the user. Therefore, the initial position of the top rod 2 of the positioning fixture 100 of the present invention is the first position. By means of the elastic element 4, the push rod 2 automatically resets to the first position after the user presses the push rod 2 each time. For example, the elastic member 4 is a spring, but not limited thereto. Specifically, the top end of the elastic element 4 abuts against the stepped structure 24, and the bottom end of the elastic element 4 abuts against the stepped hole structure 113. Preferably, the rear end of the sleeve 1 has a conical bevel 15 facing downward toward the rear opening 13 to better align the rear opening 13 with the location where the positioning member 200 is to be placed.

The working principle of the positioning fixture 100 of the present invention is explained with reference to the accompanying drawings: breather pipe 3 connects external getter device, and the getter device starts, makes rear end opening 13 be in negative pressure state, will the utility model discloses a positioning jig 100's rear end opening 13 is close to setting element 200 to adsorb in setting element 200 to second through hole 112, then, to the application of force of keeping off the dish 23, make ejector pin 2 switch over to the second position from the first position, the gliding in-process of ejector pin 2, compression elastic component 4, when ejector pin 2 is located the second position, needle bar 22 can release setting element 200, thereby make setting element 200 wear to arrange in electronic product's the position location at last.

Compared with the prior art, the utility model discloses a hollow structure 11 that runs through around positioning jig 100 is equipped with the help of sleeve 1 and has front end opening 12 and rear end opening 13, sleeve 1's air vent 14 department has still connect a breather pipe 3, hollow structure 11 is arranged in to ejector pin 2 slidable, ejector pin 2 has primary importance and second place, after getter device starts, thereby rear end opening 13 adsorbs to hollow structure 11 with setting element 200 for negative pressure state in, as people's application of force in the top of ejector pin 2, thereby promote setting element 200, thereby assemble setting element 200 on electronic product accurately conveniently. Compare with the artifical mode that adopts tweezers to press from both sides to get of tradition, the utility model discloses a positioning jig 100 has the simple operation, improves the advantage of assembly efficiency and uniformity.

The above disclosure is only a preferred embodiment of the present invention, and the scope of the claims of the present invention should not be limited thereby, and all the equivalent changes made in the claims of the present invention are intended to be covered by the present invention.

Claims

1. A positioning jig is characterized by comprising a sleeve, a mandril and a vent pipe used for being connected with an air suction device, wherein the sleeve is provided with a hollow structure which penetrates through the front and the back of the sleeve, the hollow structure penetrates through the front end of the sleeve to enable the sleeve to be provided with a front end opening, and the hollow structure penetrates through the back end of the sleeve to enable the sleeve to be provided with a back end opening; the side wall of the sleeve is also provided with a vent hole communicated between the outside and the hollow structure, and the vent pipe is connected with the vent hole; the ejector rod can be slidably arranged in the hollow structure in a penetrating mode, the top of the ejector rod extends out of the front end opening, the ejector rod further comprises a needle rod used for penetrating through the rear end opening, the ejector rod slides relative to the sleeve to be provided with a first position and a second position, when the ejector rod is located at the first position, the top of the ejector rod is separated from the top of the sleeve in the front-back direction, and the tail of the needle rod is separated from the rear end opening in the front-back direction; when the ejector rod is located at the second position, the top of the ejector rod abuts against the top of the sleeve, and the tail of the needle rod is flush with or extends out of the rear end opening.

2. The positioning fixture according to claim 1, further comprising an elastic member, wherein the elastic member is located in the hollow structure and sleeved on the needle rod, and the elastic member constantly has a tendency to drive the ejector rod to be located at the first position.

3. The positioning fixture according to claim 2, wherein the rod has a ring-shaped step structure, the top end of the elastic member abuts against the step structure, the hollow structure has a ring-shaped step hole structure, and the bottom end of the elastic member abuts against the step hole structure.

4. The positioning fixture according to claim 2, wherein the elastic member is a spring.

5. The positioning fixture according to claim 1, wherein the carrier rod comprises a sliding rod and the needle rod in sequence along a front-back direction, an outer diameter of the sliding rod is larger than an outer diameter of the needle rod, and a step structure is formed at a joint of the sliding rod and the needle rod.

6. The positioning fixture according to claim 5, wherein the ejector rod further comprises a stop disc, the stop disc is disposed on the top of the sliding rod, and when the ejector rod is located at the second position, the stop disc stops on the top of the sleeve.

7. The positioning fixture according to claim 1, wherein the hollow structure comprises a first through hole and a second through hole in sequence from front to back, the first through hole has a larger aperture size than the second through hole, and a stepped hole structure is formed at a junction of the first through hole and the second through hole.

8. The positioning fixture according to claim 7, wherein a gap is formed between the outer wall of the needle rod and the inner wall of the first through hole, the vent hole is communicated with the gap, and the vent hole is located on the side wall of the sleeve relatively close to the rear end opening.

9. The positioning fixture according to claim 7, wherein the needle bar is inserted into the second through hole, and the needle bar and the second through hole are in transition fit or clearance fit.

10. The positioning fixture according to claim 1, wherein when the ejector rod is located at the first position, a distance between the bottom of the needle rod and the rear opening is greater than or equal to a length of the positioning member.