CN218638754U

CN218638754U - Positioning jig

Info

Publication number: CN218638754U
Application number: CN202223220135.8U
Authority: CN
Inventors: 周菊生; 余志成; 付辉辉
Original assignee: Changzhou Songyuan Precision Equipment Co ltd
Current assignee: Changzhou Songyuan Precision Equipment Co ltd
Priority date: 2022-12-01
Filing date: 2022-12-01
Publication date: 2023-03-17
Anticipated expiration: 2032-12-01

Abstract

The application relates to a positioning jig, which belongs to the field of auxiliary jigs for welding and comprises a positioning plate, wherein a first positioning groove is formed in the positioning plate, the first positioning groove is formed along the length direction of the positioning plate, and the first positioning groove is used for placing a workpiece; a second positioning groove for positioning the component is formed in the positioning plate, the second positioning groove is formed along the depth direction of the first positioning groove, and a bottom column of the component penetrates through the second positioning groove; and a through hole is formed in the positioning plate and positioned at the bottom of the second positioning groove, and the through hole is communicated with the second positioning groove. The welding jig has the effect of improving the defect that a workpiece is difficult to take out of the jig after welding.

Description

Positioning jig

Technical Field

The application relates to the field of auxiliary fixtures for welding, in particular to a positioning fixture.

Background

SMT is a surface assembly technique known as surface mount or surface mount technology. Is the most popular technology and process in the electronic assembly industry at present. The surface-mounted component without pins or short leads is mounted on the surface of a printed circuit board or other substrates and is soldered and assembled by methods such as reflow soldering or dip soldering.

In the related art, when a circuit board is manufactured, a jig is generally used to position a workpiece and components when the workpiece is subjected to surface mounting, wherein the workpiece has a small volume and needs to be welded with a large number of components, so as to assist in welding operation. The workpiece is clamped in the jig before welding, the component is placed on the workpiece and clamped with the component positioning groove formed in the jig, the component is generally divided into a bottom column and a panel, and the workpiece is taken out of the jig after the component is welded to the workpiece.

In view of the above-described related art, the inventors considered that there was a defect that the welded workpiece was difficult to take out of the jig.

SUMMERY OF THE UTILITY MODEL

In order to improve the defect that a workpiece is difficult to take out of a jig after welding is finished, the application provides a positioning jig.

The application provides a positioning jig adopts following technical scheme:

a positioning jig comprises a positioning plate, wherein a first positioning groove is formed in the positioning plate, the first positioning groove is formed along the length direction of the positioning plate, and a workpiece is placed in the first positioning groove;

a second positioning groove for positioning the component is formed in the positioning plate, the second positioning groove is formed along the depth direction of the first positioning groove, and a bottom column of the component penetrates through the second positioning groove;

and a through hole is formed in the positioning plate and positioned at the bottom of the second positioning groove, and the through hole is communicated with the second positioning groove.

Through adopting above-mentioned technical scheme, first constant head tank improves the mounted position precision of work piece to the work piece location, and in the second constant head tank was worn to locate by the foundation of components and parts, will weld the position to the work piece to components and parts and make the location, precision when improving components and parts welding. After on components and parts welding connects the work piece, need take out the work piece from the locating plate, can use the instrument similar to the thimble this moment, penetrate the through-hole with the thimble, support the sill bar of components and parts, the orientation is close to the direction of work piece hard, it is ejecting in the second constant head tank with the sill bar, consequently, the time components has already welded firmly with the work piece, and then components and parts drive the work piece together with the locating plate break away from being connected, reduce because of the work piece joint in first constant head tank, operating personnel does not have the stress point when tearing open the work piece, lead to being difficult to the problem that takes out from the locating plate with the work piece after the welding completion. Meanwhile, the bottom column is ejected out of the second positioning groove through the ejector pin, so that the possibility that the workpiece is directly buckled from the first positioning groove is reduced, or an operator holds the component by hand to drive the workpiece to be disconnected from the positioning plate, the welding position of the component and the workpiece is loosened, the welding position is broken and loosened, and the welding precision is reduced. Therefore, the bottom columns of the components are ejected out of the through holes by using tools, so that the components drive the workpieces to be disconnected from the positioning plate, the convenience degree of taking out the workpieces after welding from the positioning plate is improved, and the welding precision of the components and the workpieces is also improved.

Preferably, a positioning column is arranged on the bottom wall of the first positioning groove and located on one side of the positioning plate, and the positioning column penetrates through the workpiece and is used for limiting the installation direction of the workpiece.

By adopting the technical scheme, the positioning columns limit the installation direction of the workpieces, so that when the workpieces are placed in the jig, the placing direction is correct, and further when the components are welded to the workpieces, the welding precision is higher. After welding is completed, when the bottom column of the component is ejected out of the range of the second positioning groove from the through hole, the positioning column guides the direction of the workpiece, which is separated from the positioning plate, so that the workpiece is conveniently and smoothly separated from the positioning plate, the separation direction of the bottom column of the component and the second positioning groove is vertical, the influence on the welding position precision of the component and the workpiece when the workpiece is separated from the positioning plate is reduced, and the welding precision is improved.

Preferably, the length of the positioning plate is smaller than that of the workpiece.

Through adopting above-mentioned technical scheme, when the foundation column main part of components and parts and second constant head tank inner wall break away from the connection, operating personnel can grasp the both ends of work piece, lifts up the work piece, and help work piece and locating plate break away from the connection, the convenient degree when improving work piece and locating plate and breaking away from the connection. The both ends of holding the work piece simultaneously, lift up the work piece, reduce and snatch work piece middle part position, touch the components and parts that weld on the work piece, influence welding precision. And then when the convenient degree of taking off the work piece from the locating plate is improved, still improve the welding precision of work piece and components and parts.

Preferably, a third positioning groove is formed in the positioning plate, and a panel of the component is clamped with the third positioning groove.

Through adopting above-mentioned technical scheme, the panel and the third constant head tank joint of components and parts reduce the foundation of components and parts and wear to locate the second constant head tank and take place to rotate, lead to the deviation to appear in the welding position of components and parts panel and work piece, lead to the possibility that positioning accuracy reduces. Therefore, the panel of the component is positioned through the third clamping groove, and the welding precision of the component and the workpiece is improved.

Preferably, a tightening rod penetrates through the through hole, and a fixing plate is connected to one end, deviating from the positioning plate, of the tightening rod.

Through adopting above-mentioned technical scheme, press the locating plate towards the direction of fixed plate, support the sill pillar that tight pole promoted components and parts and be disconnected with the second constant head tank, operating personnel holds between the fingers the both sides of work piece, takes off the work piece that the welding was accomplished, reduces the necessity that uses operating tool to take off the work piece, further improves the convenient degree of taking off the work piece after the welding was accomplished. The positioning plate is pressed, the necessity of applying force to the workpiece when the workpiece is taken down from the positioning plate is reduced, and the possibility of influencing the joint of the workpiece and the component when the workpiece is taken down is further reduced, so that the connection precision of the workpiece and the component is improved.

Preferably, a blocking piece is fixedly connected to the inner wall of the second positioning groove, an installation hole for the abutting rod to pass through is formed in the blocking piece, and the side wall of the abutting rod slides on the wall of the installation hole;

support fixedly connected with installation piece on the tight pole, installation piece lateral wall with the second constant head tank inner wall slides, the installation piece is located the separation blade with between the second constant head tank diapire, the separation blade with be provided with reset spring between the installation piece.

Through adopting above-mentioned technical scheme, push down the locating plate towards the direction of fixed plate, support the bottom bar that tight pole promoted components and parts and be disconnected with the second constant head tank, and then drive work piece and locating plate and break away from being connected, be convenient for take off the work piece, improve the convenient degree of taking out the work piece from the locating plate. When the locating plate moves towards the fixed plate, the relative tightening rod drives the mounting piece to move towards the direction of the separation blade, and the reset spring is extruded by the separation blade and the mounting piece and then compressed. After the workpiece is disconnected with the positioning plate, the positioning plate is loosened, the reset spring releases the pressure, the mounting plate is pushed to the direction away from the separation blade, and then the tightening rod moves towards the direction away from the positioning plate to drive the fixing plate to be away from the positioning plate. After the positioning plate is used for positioning the workpiece next time, the bottom columns of the components can penetrate into the second positioning grooves, and the difficulty in separating the positioning plate from the fixing plate is reduced.

Preferably, the fixing plate is provided with a supporting block, the supporting block is located between the fixing plate and the positioning plate, and the supporting block can be detached.

Through adopting above-mentioned technical scheme, when the work piece was placed on the locating plate and is prepared for the welding, the supporting shoe played the supporting role to the locating plate, when reducing to weld components and parts to the work piece, the locating plate moved towards fixed plate department, leaded to the possibility that welding precision reduces. The supporting shoe slides with the fixed plate and is connected, when needs take out the work piece from the locating plate, slide the supporting shoe to the position not with the locating plate contact, can push down the orientation of locating plate towards the fixed plate, support the sill pillar that tight pole promoted components and parts and keep away from the second constant head tank for work piece and locating plate break away from the connection, improve the convenient degree of taking off the work piece from the locating plate.

Preferably, the supporting block is provided with a connecting block, and the fixing plate is provided with a connecting groove for the sliding of the connecting block.

Through adopting above-mentioned technical scheme, the connecting block slides in the spread groove for when the weldment work piece, the supporting shoe can play the supporting role to the locating plate, when will take off the work piece from the locating plate, can slide the supporting shoe to the position that breaks away from the contact with the locating plate, improves the convenient degree of taking out the work piece from the locating plate. The supporting shoe slides on the fixed plate, reduces the possibility that the supporting shoe and the fixed plate are disconnected.

In summary, the present application includes at least one of the following beneficial technical effects:

1. through the arrangement of the through hole, the effect that an operator can use tools conveniently, the bottom column of the component penetrating through the second positioning groove is ejected out of the through hole, so that the workpiece is separated from the positioning plate, and the welded workpiece can be taken down from the positioning plate conveniently is achieved;

2. by arranging the third positioning groove, the effect of reducing the possibility that the positioning precision is reduced because the components are arranged on the positioning plate and only the bottom column penetrates through the second positioning groove and rotates can be achieved;

3. by arranging the abutting rod and the fixing plate, the bottom column of the component can be ejected out of the second positioning groove through the abutting rod, so that the workpiece can be taken out of the positioning plate conveniently;

4. through the arrangement of the blocking piece, the reset spring and the mounting piece, the effects of facilitating resetting of the fixing plate, facilitating repeated action of the abutting rod and ejecting a bottom column of the component out of the second positioning groove and improving the convenience degree of taking the workpiece out of the positioning plate can be achieved;

5. through setting up the supporting shoe, improve the stability when the work piece is located the preparation welding on the locating plate, have the effect that improves the precision of components and parts welding to the work piece.

Drawings

Fig. 1 is a schematic view of an overall structure of a positioning fixture in embodiment 1 of the present application.

Fig. 2 is a sectional view of a positioning jig according to embodiment 1 of the present application.

Fig. 3 is a sectional view of a positioning jig according to embodiment 2 of the present application.

Fig. 4 is an enlarged view of a point a in fig. 3.

Fig. 5 is a schematic view of an overall structure of a positioning fixture in embodiment 2 of the present application.

Description of reference numerals: 1. positioning a plate; 11. a first positioning groove; 12. a second positioning groove; 121. a baffle plate; 13. a through hole; 14. a positioning column; 15. a third positioning groove; 2. a workpiece; 3. a component; 31. a bottom pillar; 32. a panel; 4. a tightening rod; 41. mounting a sheet; 5. a fixing plate; 51. a supporting block; 52. connecting blocks; 53. connecting grooves; 6. a return spring.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses a positioning jig.

Example 1

Referring to fig. 1 and 2, a positioning jig includes a positioning plate 1, the positioning plate 1 is used for placing a workpiece 2, a first positioning groove 11 for positioning the workpiece 2 is provided on the positioning plate 1, the first positioning groove 11 is provided along the length direction of the positioning plate 1, and the workpiece 2 is clamped with the first positioning groove 11. Still seted up second constant head tank 12 on the locating plate 1, second constant head tank 12 is seted up along the depth direction of locating plate 1, and second constant head tank 12 is used for fixing a position 3 components and parts, and components and parts 3 include panel 32 and sill pillar 31 two parts, and during second constant head tank 12 was worn to locate by the sill pillar 31 part of components and parts 3, the panel 32 part of components and parts 3 and the one side butt that work piece 2 deviates from locating plate 1. The bottom of the second positioning groove 12 is provided with a through hole 13, and the through hole 13 is communicated with the second positioning groove 12. The through hole 13 is used for ejecting the bottom column 31 of the component 3 out of the second positioning groove 12, so that the side wall of the bottom column 31 of the component 3 is disconnected from the inner wall of the second positioning groove 12, and the workpiece 2 is conveniently taken down from the positioning plate 1.

In the embodiment of the present application, the workpiece 2 is provided with two, and the component 3 is provided with a plurality of.

Referring to fig. 1 and 2, a third positioning groove 15 is further formed in the positioning plate 1, the panel 32 of the component 3 is clamped with the third positioning groove 15, the third positioning groove 15 is used for positioning the panel 32 of the component 3, the panel 32 of the component 3 faces the surface of the workpiece 2, one part of the panel is abutted to one side of the positioning plate 1 away from the workpiece 2, and the other part of the panel is abutted to the bottom surface of the third positioning groove 15. The positioning degree of the component 3 is improved, and the welding precision of the component 3 to the workpiece 2 is further improved.

Referring to fig. 1 and 2, a positioning column 14 is further arranged on the positioning plate 1, the positioning column 14 is located at one end of the positioning plate 1 in the length direction, a positioning hole for the positioning column 14 to penetrate is formed in the workpiece 2, and the positioning column 14 is used for determining the placing direction of the workpiece 2, so that the placing direction of the workpiece 2 is fixed, and the welding precision of the component 3 and the workpiece 2 is improved. The length of locating plate 1 is less than the length of work piece 2, and two edges of the length direction of work piece 2 all are located outside locating plate 1, and then when using like instrument of thimble, the thimble passes through-hole 13, and is ejecting from second constant head tank 12 with the foundation 31 of components and parts 3, and components and parts 3 drive work piece 2 and first constant head tank 11 and break away from the connection, and operating personnel can hand the both sides of work piece 2, takes out work piece 2 from locating plate 1, and the operating personnel of being convenient for takes out work piece 2 from locating plate 1.

The implementation principle of the embodiment 1 is as follows: the workpiece 2 is placed in the first positioning groove 11, the bottom column 31 of the component 3 penetrates into the second positioning groove 12, the panel 32 of the component 3 is clamped with the third positioning groove 15, and the component 3 is welded with the workpiece 2. The bottom column 31 of the component 3 is ejected out of the second limit groove 133 by the ejector pin from the through hole 13, and the component 3 drives the workpiece 2 to be disconnected from the positioning plate 1.

Example 2

Referring to fig. 3 and 4, the difference between the present embodiment and embodiment 1 is that a blocking piece 121 is disposed on an inner wall of the second positioning groove 12, the blocking piece 121 is fixedly connected to the inner wall of the second positioning groove 12, and a mounting hole is formed on the blocking piece 121. The supporting rod 4 penetrates through the mounting hole, and one end, facing away from the workpiece 2, of the supporting rod 4 is connected with a fixing plate 5. The tightening rod 4 is provided with a mounting piece 41 thereon, and the mounting piece 41 is located on one side of the blocking piece 121 facing the fixing plate 5. The mounting piece 41 is fixedly connected with the abutting rod 4 and is located in the second positioning groove 12, the side wall of the mounting piece 41 slides on the inner wall of the second positioning groove 12, and the return spring 6 is arranged between the blocking piece 121 and the mounting piece 41. In the embodiment of the present application, the workpiece 2 is provided with two, and the component 3 is provided with a plurality of.

Referring to fig. 3 and 4, after the welding of workpiece 2 is completed, positioning plate 1 is pressed down towards the direction of fixing plate 5, so that tightening rod 4 moves towards the direction of workpiece 2, workpiece 2 pushes bottom column 31 of component 3 towards the direction of keeping away from second positioning groove 12, component 3 drives workpiece 2 to move towards the direction of keeping away from positioning plate 1, workpiece 2 is disconnected from positioning plate 1, and the operator can take workpiece 2 off from positioning plate 1. When the operator stops applying pressure to the positioning plate 1, the reset spring 6 releases the pressure, and the reset spring 6 pushes the mounting plate 41 to move towards the direction away from the blocking plate 121, so that the fixing plate 5 is reset, and the repeated use is facilitated. When welding a plurality of components and parts 3 on work piece 2, push down locating plate 1 towards the direction of fixed plate 5, a plurality of poles of supporting 4 promote components and parts 3's sill post 31 simultaneously and break away from second constant head tank 12, reduce to a plurality of components and parts 3 the propelling movement distance differ, lead to work piece 2 to take place to buckle, reduce the possibility of product precision. Therefore save and take off work piece 2 the time that takes, when improving the convenient degree of taking out work piece 2, still improved the welding precision of components and parts 3 with work piece 2.

Referring to fig. 3 and 5, a supporting block 51 is disposed between the fixing plate 5 and the positioning plate 1, a connecting block 52 is disposed at one end of the supporting block 51 facing the fixing plate 5, a connecting groove 53 for allowing the connecting block 52 to slide is formed in the fixing plate 5, and the supporting block 51 is connected to the fixing plate 5 in a sliding manner. When the workpiece 2 is clamped in the first positioning groove 11 and the component 3 needs to be welded to the workpiece 2, the supporting block 51 is located between the fixing plate 5 and the positioning plate 1 to support the positioning plate 1, so that the possibility that the workpiece 2 moves towards the fixing plate 5 during welding and the welding precision is reduced. When work piece 2 welding is accomplished, when needing to take out work piece 2 from locating plate 1, slide supporting shoe 51 to the position of not contacting with locating plate 1, supporting shoe 51 does not play the supporting role to locating plate 1 this moment, push down locating plate 1 towards the direction of fixed plate 5, support tight pole 4 and make components and parts 3 drive the direction motion of work piece 2 orientation keeping away from locating plate 1, make work piece 2 and locating plate 1 break away from to be connected, improve the convenient degree when taking off work piece 2 that will weld the completion from locating plate 1.

The implementation principle of the embodiment 2 is as follows: sliding the supporting block 51 between the positioning plate 1 and the fixing plate 5, placing the workpiece 2 in the first positioning groove 11, penetrating the bottom column 31 of the component 3 into the second positioning groove 12, clamping the panel 32 of the component 3 with the third positioning groove 15, and welding the component 3 with the workpiece 2; the supporting block 51 is slid to a position where the supporting block is not in contact with the positioning plate 1, the positioning plate 1 is pressed downwards towards the direction of the fixing plate 5, the abutting rod 4 moves towards the direction of the workpiece 2, the bottom column 31 of the component 3 is ejected out of the second limiting groove 133, and the component 3 drives the workpiece 2 to be disconnected from the positioning plate 1; remove the downward pressure that applys to locating plate 1, reset spring 6 resets, promotes installation piece 41 and keeps away from the direction motion of separation blade 121, and installation piece 41 drives the direction motion of keeping away from locating plate 1 towards the pole 4 that supports, and then makes locating plate 1 move towards the direction of keeping away from fixed plate 5, slides supporting shoe 51 to between locating plate 1 and the fixed plate 5 to be ready for reuse.

The above are preferred embodiments of the present application, and the scope of protection of the present application is not limited thereto, so: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A positioning jig is characterized in that: the positioning device comprises a positioning plate (1), wherein a first positioning groove (11) is formed in the positioning plate (1), the first positioning groove (11) is formed in the length direction of the positioning plate (1), and the first positioning groove (11) is used for placing a workpiece (2);

a second positioning groove (12) for positioning the component (3) is formed in the positioning plate (1), the second positioning groove (12) is formed along the depth direction of the first positioning groove (11), and a bottom column (31) of the component (3) penetrates through the second positioning groove (12);

the locating plate (1) is provided with a through hole (13) at the bottom of the second locating groove (12), and the through hole (13) is communicated with the second locating groove (12).

2. The positioning jig according to claim 1, wherein: locating column (14) wear to be equipped with on locating plate (1), locating column (14) are located one side of locating plate (1), during locating column (14) wear to locate work piece (2), be arranged in the direction of installation of restriction work piece (2).

3. The positioning jig according to claim 1, wherein: the length of the positioning plate (1) is smaller than that of the workpiece (2).

4. The positioning jig according to claim 1, wherein: and a third positioning groove (15) is formed in the positioning plate (1), and a panel (32) of the component (3) is clamped with the third positioning groove (15).

5. The positioning jig according to claim 1, wherein: wear to be equipped with in through-hole (13) and support tight pole (4), support tight pole (4) deviate from the one end of locating plate (1) is connected with fixed plate (5).

6. The positioning jig according to claim 5, wherein: a blocking piece (121) is fixedly connected to the inner wall of the second positioning groove (12), an installation hole for the abutting rod (4) to pass through is formed in the blocking piece (121), and the side wall of the abutting rod (4) slides with the wall of the installation hole;

support fixedly connected with installation piece (41) on tight pole (4), installation piece (41) lateral wall with second constant head tank (12) inner wall slides, installation piece (41) are located separation blade (121) with between second constant head tank (12) diapire, separation blade (121) with be provided with reset spring (6) between installation piece (41).

7. The positioning jig according to claim 5, wherein: the positioning device is characterized in that a supporting block (51) is arranged on the fixing plate (5), the supporting block is positioned between the fixing plate (5) and the positioning plate (1), and the supporting block (51) can be detached.

8. The positioning jig according to claim 7, wherein: the supporting block (51) is provided with a connecting block (52), and the fixing plate (5) is provided with a connecting groove (53) for the sliding of the connecting block (52).