CN213152509U

CN213152509U - Auxiliary device for efficient tinning of SMT (surface mount technology) patches

Info

Publication number: CN213152509U
Application number: CN202022542954.9U
Authority: CN
Inventors: 梅格伟; 陈林; 黄艳秋
Original assignee: Ruima Guangzhou Electronic Technology Co ltd
Current assignee: Ruima Guangzhou Electronic Technology Co ltd
Priority date: 2020-11-05
Filing date: 2020-11-05
Publication date: 2021-05-07
Anticipated expiration: 2030-11-05

Abstract

The utility model relates to a SMT paster technical field, concretely relates to high-efficient auxiliary device for tin-plating of SMT paster, it includes bottom plate and structure, the storage tank has been seted up on the bottom plate, the spacing groove has been seted up to the tank bottom of storage tank, be provided with in the spacing groove with the elasticity centre gripping subassembly of structure elasticity centre gripping, be provided with the locating hole that is used for fixed printed circuit board makeup in the storage tank. The application has the effect of improving the safety of the jointed board of the printed circuit board in the auxiliary paster work.

Description

Auxiliary device for efficient tinning of SMT (surface mount technology) patches

Technical Field

The application relates to SMT paster technical field, concretely relates to high-efficient auxiliary device for tin-plating of SMT paster.

Background

SMT is a Surface mount Technology (Surface Mounted Technology), which is the most popular Technology and process in the electronic assembly industry.

When the small-size printed circuit board splicing plate is produced, the small-size printed circuit board splicing plate is easy to damage and uneven in stress, and when the SMT is subjected to Surface Mount Technology (SMT) patch printing, insufficient solder is produced, and the yield is low. To the above-mentioned problem, chinese patent with publication number CN206908956U discloses an auxiliary SMT paster printing jig of improvement type, and it includes bottom plate and structure, and the recess is openly established to the bottom plate, and the recess bottom surface is equipped with the draw-in groove, two relative draw-in grooves are with structure swing joint on the draw-in groove, reciprocate in the draw-in groove through the structure to carry on spacingly to the printed circuit board makeup.

In the above-mentioned patent, the structure is when carrying on spacingly to the printed circuit board makeup, when the bottom plate produced acceleration, because the structural slab is fixed in the draw-in groove, the printed circuit board makeup just produces rigid collision with the structure very easily, and then probably leads to the printed circuit board makeup to damage, and its security is lower.

SUMMERY OF THE UTILITY MODEL

In order to improve the security to the printed circuit board makeup in supplementary paster work, this application provides a high-efficient auxiliary device for tin-plating of SMT paster.

The application provides a pair of auxiliary device for efficient tinning of SMT paster adopts following technical scheme:

the utility model provides a high-efficient auxiliary device for tin-plating of SMT paster, includes bottom plate and structure, the storage tank has been seted up on the bottom plate, the spacing groove has been seted up to the tank bottom of storage tank, be provided with in the spacing groove with the elasticity centre gripping subassembly of structure elasticity centre gripping, be provided with the locating hole that is used for fixed printed circuit board makeup in the storage tank.

Through adopting above-mentioned technical scheme, receive the limiting displacement of structure when the printed circuit board makeup is placed in the storage tank, elasticity centre gripping subassembly is with structure elasticity centre gripping, when the structure carries on spacingly to the printed circuit board makeup, if the printed circuit board makeup collides with the structure, the impulsive force of collision turns into elasticity and reaches the effect of buffering, avoids the printed circuit board makeup and structure to produce too big rigidity collision and leads to the printed circuit board makeup to damage, improves the security to the printed circuit board makeup in supplementary paster work.

Optionally, the elastic clamping assembly comprises an upper elastic assembly and a lower elastic assembly;

the upper elastic component comprises an upper clamping piece, an upper spring and an upper clamping piece, the upper clamping piece is tightly attached to the groove wall of the limiting groove, one end of the upper spring is abutted against the upper clamping piece, and the other end of the upper spring is fixedly connected with the upper clamping piece;

the lower elastic component comprises a lower clamping piece, a lower spring and a lower clamping piece, the lower clamping piece is tightly attached to the groove wall of the limiting groove, one end of the lower spring is abutted against the lower clamping piece, and the other end of the lower spring is fixedly connected with the lower clamping piece;

the upper clamping piece and the lower clamping piece clamp the structural part under the elastic force of the upper spring and the lower spring.

By adopting the technical scheme, the upper clamping piece has the trend of moving towards the lower clamping piece due to the elastic force of the upper spring, and the lower clamping piece has the trend of moving towards the upper clamping piece due to the elastic force of the lower spring, so that the upper clamping piece and the lower clamping piece clamp the structural component. When the structural member collides with the jointed board of the printed circuit board, the impact force is converted into the elastic force of the spring, the spring is compressed or stretched towards the impact force, and the clamping force of the structural member is changed along with the compression or stretching, so that the structural member moves towards the impact force, the rigid collision between the jointed board of the printed circuit board and the structural member is reduced, and the safety is improved.

Optionally, the structural member includes a flat plate portion and a clamped portion, the clamped portion is fixed to a bottom surface of the flat plate portion, and the upper clamping piece and the lower clamping piece clamp the clamped portion.

By adopting the technical scheme, the clamping part is stably clamped by the upper clamping piece and the lower clamping piece, and the side edge of the flat plate part limits the jointed board of the printed circuit board so that the jointed board of the printed circuit board is stably limited.

Optionally, the upper clamping piece is provided with an upper clamping block, and the side wall of the limiting groove is provided with a plurality of upper clamping grooves used for being matched with the upper clamping block; the lower clamping piece is provided with a lower clamping block, and the side wall of the limiting groove is provided with a plurality of lower clamping grooves used for being matched with the lower clamping block.

Through adopting above-mentioned technical scheme, go up fixture block and last draw-in groove cooperation, the last draw-in groove cooperation of fixture block and difference is gone up in the adjustment, make and go up the card and be located the last draw-in groove position that corresponds, and then change the compression capacity of going up the spring, and in the same way, the fixture block cooperates with different lower draw-in grooves down in the adjustment, make down the card be located the lower draw-in groove position that corresponds, can change the clamping position of punch holder and lower plate to the structural component on the one hand, on the other hand can adjust the clamping-force to the structural component, thereby reach better centre gripping effect, and then make the spacing effect.

Optionally, an upper limiting column is fixedly arranged on one side, facing the upper clamping piece, of the upper clamping piece, and the upper spring part is sleeved on the upper limiting column; one side of the lower clamping piece, which faces the lower clamping piece, is fixedly provided with a lower limiting column, and the lower spring part is sleeved on the lower limiting column.

Through adopting above-mentioned technical scheme, the upper spring part cover is located last spacing post, it produces limiting displacement to the upper spring to go up the spacing post, make the upper spring be difficult for breaking away from the spacing groove, improve the position state stability of upper spring, make the upper spring more stable to the application of force state of punch holder, and on the same hand, the spacing post produces limiting displacement and makes the lower spring be difficult for breaking away from the spacing groove to the lower spring, make the application of force state of lower spring to the lower plate more stable, and then make the clamp effect of punch holder and lower plate to the component more stable down.

Optionally, a mounting groove is further formed in the groove bottom of the accommodating groove, a mounting plate is mounted in the mounting groove, and the positioning hole is formed in the mounting plate.

Through adopting above-mentioned technical scheme, the mounting groove is seted up to the tank bottom of storage tank, sets up the mounting panel in the mounting groove, and the locating hole is seted up with on the mounting panel, can change the mounting panel that has different locating holes and realize the location effect to multiple printed circuit board makeup to the printed circuit board makeup location of different specifications.

Optionally, the thickness of the mounting plate is greater than the depth of the mounting groove.

Through adopting above-mentioned technical scheme, the thickness of mounting panel is greater than the degree of depth of mounting groove, and mounting panel part exceeds the mounting groove promptly. When the mounting plate is replaced, the part of the mounting plate, which exceeds the mounting groove, is clamped to take out the mounting plate, and the mounting plate is convenient to disassemble, assemble and replace by the mode.

Optionally, the mounting plate is a magnetic plate, and a positioning piece for magnetically fixing the jointed printed circuit board is arranged in the positioning hole.

By adopting the technical scheme, the mounting plate is a magnetic plate, the positioning piece is used for fixing the magnetic property of the jointed printed circuit board on the mounting plate, the magnetic property fixing mode is simple and convenient to operate, rigid connection of the jointed printed circuit board is reduced, the condition that the jointed printed circuit board is damaged by overlarge rigid force is reduced, and the safety is further improved.

Optionally, the positioning element includes a magnetic part and a positioning part, the magnetic part is cylindrical, the magnetic part is inserted into the positioning hole and magnetically connected with the mounting plate, and the positioning part is tightly attached to the top surface of the jointed board of the printed circuit board.

Through adopting above-mentioned technical scheme, cylindric magnetism portion of inhaling is pegged graft with the locating hole and is cooperated to receive the magnetic attraction of mounting panel simultaneously, it is better to the location effect of printed circuit board makeup.

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

1. the upper clamping piece has a trend of moving towards the lower clamping piece due to the elasticity of the upper spring, and the lower clamping piece has a trend of moving towards the upper clamping piece due to the elasticity of the lower spring, so that the upper clamping piece and the lower clamping piece clamp the structural component;

2. the mounting plate is arranged in the mounting groove, the positioning holes are formed in the mounting plate, and the mounting plate with different positioning holes can be replaced for positioning the printed circuit board jointed boards with different specifications, so that the positioning effect on various printed circuit board jointed boards is realized;

3. the mounting panel is the magnetic plate, and the setting element is fixed in the mounting panel with printed circuit board makeup magnetism, and the fixed mode of magnetism is easy and simple to handle to reduce the rigid connection to the printed circuit board makeup, reduce the condition that the printed circuit board makeup received too big rigidity power and damaged, further improve the security.

Drawings

Fig. 1 is a front view of the overall structure of the embodiment of the present application.

Fig. 2 is a front view of a part of the structure of the embodiment of the present application.

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 1 of an embodiment of the present application.

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

FIG. 5 is a cross-sectional view of an embodiment of the present application taken along line B-B of FIG. 1.

Fig. 6 is an enlarged view of a portion D in fig. 5.

Description of reference numerals: 1. a base plate; 11. a containing groove; 12. a limiting groove; 13. mounting grooves; 131. mounting a plate; 132. positioning holes; 2. an upper elastic component; 21. putting a card; 211. an upper clamping block; 212. an upper clamping groove; 213. an upper limiting column; 22. an upper spring; 23. an upper clamping piece; 3. a lower elastic component; 31. a card is put down; 311. a lower clamping block; 312. a lower clamping groove; 313. a lower restraint post; 32. a lower spring; 33. a lower clamping piece; 4. a structural member; 41. a flat plate portion; 42. a clamped portion; 5. a positioning member; 51. a positioning part; 52. magnetic suction part.

Detailed Description

The present application is described in further detail below with reference to figures 1-6.

The embodiment of the application discloses auxiliary device for efficient tin plating of SMT paster, refer to fig. 1, including square bottom plate 1 and structure 4, storage tank 11 has been seted up to 1 top surface of bottom plate, and storage tank 11's profile shape is unanimous with bottom plate 1's profile shape, and spacing groove 12 has been seted up to storage tank 11's tank bottom, and four, four spacing groove 12 array distributions have been seted up to spacing groove 12. An elastic clamping assembly is arranged in the limiting groove 12 and clamps the structural member 4 to position the structural member 4.

Referring to fig. 1 and 2, the elastic clamping assembly includes an upper elastic assembly 2 and a lower elastic assembly 3. Go up elastic component 2 including last card 21, upper spring 22 and the last clamping piece 23 that connects gradually, upper spring 22 one end is contradicted in last card 21 and the other end and last clamping piece 23 fixed connection, and upper spring 22 is in compression state, and upper spring 21 bears the elasticity of upper spring 22 and hugs closely in the cell wall of spacing groove 12. The shape of the upper clamping piece 23 is preferably circular, an upper clamping block 211 is fixedly arranged on the outer edge of the upper clamping piece 21, a plurality of upper clamping grooves 212 are formed in the side wall of the limiting groove 12 at equal intervals, the size of the outline of the upper clamping block 211 is equal to that of the outline of the upper clamping groove 212, and the upper clamping block 211 and the upper clamping groove 212 are matched in an inserting mode so that the position of the upper clamping piece 21 is fixed to the corresponding upper clamping groove 212. The upper clip 21 is fixedly provided with an upper limiting column 213 facing the side of the upper clip 23, the upper spring 22 is partially sleeved on the upper limiting column 213, and the upper spring 22 is not easy to be separated from the limiting groove 12 due to the limiting action of the upper limiting column 213. The lower elastic component 3 includes a lower clamping piece 31, a lower spring 32 and a lower clamping piece 33 which are connected in sequence, one end of the lower spring 32 is abutted against the lower clamping piece 31, and the other end of the lower spring is fixedly connected with the lower clamping piece 33, the lower spring 32 is in a compressed state, and the lower clamping piece 31 is tightly attached to the groove wall of the limiting groove 12 under the elastic force of the lower spring 32. The shape of the lower clamping piece 33 is preferably circular, a lower clamping block 311 is fixedly arranged on the outer edge of the lower clamping piece 31, a plurality of lower clamping grooves 312 are formed in the side wall of the limiting groove 12 at equal intervals, the lower clamping block 311 and the lower clamping grooves 312 have the same contour shape and size, and the lower clamping block 311 and the lower clamping grooves 312 are in inserted fit to fix the position of the lower clamping piece 31 at the corresponding lower clamping grooves 312. The lower clamping piece 31 is fixedly provided with a lower limiting column 313 towards the side surface of the lower clamping piece 33, the lower spring 32 is partially sleeved on the lower limiting column 313, and the lower spring 32 is not easy to be separated from the limiting groove 12 under the limiting action of the lower limiting column 313. The upper jaw 23 is pressed toward the lower jaw 33 by the elastic force of the upper spring 22, and the lower jaw 33 is pressed toward the upper jaw 23 by the elastic force of the lower spring 32.

Referring to fig. 3 and 4, the structural member 4 includes a flat plate portion 41 and two clamped portions 42, the clamped portion 42 is located between the upper clamping piece 23 and the lower clamping piece 33, the clamped portion 42 is clamped by the upper clamping piece 23 and the lower clamping piece 33 and is stable in position, and the two clamped portions 42 of the structural member 4 are respectively clamped by two sets of elastic clamping assemblies and are stable in position.

Referring back to fig. 1 and 2, the bottom of the accommodating groove 11 is further provided with four mounting grooves 13, and the four mounting grooves 13 are distributed in an array. Each mounting groove 13 is provided with a mounting plate 131, the mounting plate 131 is a magnetic plate, the size of the outline shape of the mounting plate 131 is the same as that of the mounting groove 13, and the mounting plate 131 is placed in the mounting groove 13. The mounting plate 131 is provided with a plurality of positioning holes 132, the positioning holes 132 are through holes, and a plurality of positioning members 5 are disposed in the positioning holes 132.

Referring to fig. 5 and 6, the positioning member 5 includes a magnetic portion 52 and a positioning portion 51, the magnetic portion 52 is cylindrical, the magnetic portion 52 is inserted into the positioning hole 132, the magnetic portion 52 is magnetically attracted by the mounting plate 131 in the positioning hole 132 to be stable in position, and meanwhile, the bottom surface of the positioning portion 51 is tightly attached to the top surface of the printed circuit board assembly to fix the printed circuit board assembly. In this embodiment, the thickness of the mounting plate 131 is greater than the depth of the mounting groove 13 to facilitate the removal of the mounting plate 131 from the mounting groove 13.

The implementation principle of the auxiliary device for efficient tinning of the SMT paster is as follows: when the jointed boards of the printed circuit board are placed in the accommodating groove 11, the jointed boards are limited by the structural part 4, and the structural part 4 is elastically clamped by the two elastic clamping components. The upper jaw 23 is subject to the elastic force of the upper spring 22 and has a tendency to move towards the lower jaw 33, and the lower jaw 33 is subject to the elastic force of the lower spring 32 and has a tendency to move towards the upper jaw 23, so that the upper jaw 23 and the lower jaw 33 clamp the structure 4. When the structural member 4 collides with the jointed boards of the printed circuit board, the impact force is converted into the elastic force of the upper spring 22 and the lower spring 32, the upper spring 22 and the lower spring 32 are compressed or stretched in the direction of the impact force, and the clamping force applied to the structural member 4 is changed along with the compression force, so that the structural member 4 moves in the direction of the impact force, thereby reducing the rigid collision between the jointed boards of the printed circuit board and the structural member 4 and improving the safety of the jointed boards of the printed circuit board in the auxiliary patching work.

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

Claims

1. The utility model provides a high-efficient auxiliary device for tin-plating of SMT paster, includes bottom plate (1) and structure (4), storage tank (11), its characterized in that have been seted up on bottom plate (1): limiting groove (12) have been seted up to the tank bottom of storage tank (11), be provided with in limiting groove (12) with the elasticity centre gripping subassembly of structure (4) elasticity centre gripping, be provided with locating hole (132) that are used for fixed printed circuit board makeup in storage tank (11).

2. The auxiliary device for efficient SMT patch tinning according to claim 1, wherein the auxiliary device comprises: the elastic clamping assembly comprises an upper elastic assembly (2) and a lower elastic assembly (3);

the upper elastic component (2) comprises an upper clamping piece (21), an upper spring (22) and an upper clamping piece (23), the upper clamping piece (21) is tightly attached to the wall of the limiting groove (12), one end of the upper spring (22) is abutted to the upper clamping piece (21), and the other end of the upper spring is fixedly connected with the upper clamping piece (23);

the lower elastic component (3) comprises a lower clamping piece (31), a lower spring (32) and a lower clamping piece (33), the lower clamping piece (31) is tightly attached to the wall of the limiting groove (12), one end of the lower spring (32) is abutted to the lower clamping piece (31), and the other end of the lower spring (32) is fixedly connected with the lower clamping piece (33);

the upper clamping piece (23) and the lower clamping piece (33) clamp the structural part (4) under the elastic force of the upper spring (22) and the lower spring (32).

3. An auxiliary device for efficient SMT patch tinning according to claim 2, wherein: the structural part (4) comprises a flat plate part (41) and a clamped part (42), the clamped part (42) is fixed on the bottom surface of the flat plate part (41), and the upper clamping piece (23) and the lower clamping piece (33) clamp the clamped part (42).

4. An auxiliary device for efficient SMT patch tinning according to claim 2, wherein: the upper clamping piece (21) is provided with an upper clamping block (211), and the side wall of the limiting groove (12) is provided with a plurality of upper clamping grooves (212) which are used for being matched with the upper clamping block (211); the lower clamping piece (31) is provided with a lower clamping block (311), and the side wall of the limiting groove (12) is provided with a plurality of lower clamping grooves (312) matched with the lower clamping block (311).

5. An auxiliary device for efficient SMT patch tinning according to claim 2, wherein: an upper limiting column (213) is fixedly arranged on one side, facing the upper clamping piece (23), of the upper clamping piece (21), and the upper limiting column (213) is partially sleeved with the upper spring (22); one side of the lower clamping piece (31) facing the lower clamping piece (33) is fixedly provided with a lower limiting column (313), and the lower spring (32) is partially sleeved on the lower limiting column (313).

6. The auxiliary device for efficient SMT patch tinning according to claim 1, wherein the auxiliary device comprises: the groove bottom of storage tank (11) has still seted up mounting groove (13), install mounting panel (131) in mounting groove (13), locating hole (132) are seted up on mounting panel (131).

7. An auxiliary device for efficient SMT patch tinning according to claim 6, wherein: the thickness of the mounting plate (131) is larger than the depth of the mounting groove (13).

8. An auxiliary device for efficient SMT patch tinning according to claim 6, wherein: the mounting plate (131) is a magnetic plate, and a positioning piece (5) for magnetically fixing the jointed boards of the printed circuit board is arranged in the positioning hole (132).

9. An auxiliary device for efficient SMT patch tinning according to claim 8, wherein: the positioning piece (5) comprises a magnetic part (52) and a positioning part (51), the magnetic part (52) is cylindrical, the magnetic part (52) is inserted into the positioning hole (132) and is magnetically connected with the mounting plate (131), and the positioning part (51) is tightly attached to the top surface of the jointed board of the printed circuit board.