CN213718347U

CN213718347U - PCB surface treatment tin spraying jig

Info

Publication number: CN213718347U
Application number: CN202022289794.1U
Authority: CN
Inventors: 查红平; 刘长松; 文伟峰
Original assignee: Red Board Jiangxi Co ltd
Current assignee: Jiangxi Redboard Technology Co Ltd
Priority date: 2020-10-15
Filing date: 2020-10-15
Publication date: 2021-07-16
Anticipated expiration: 2030-10-15

Abstract

The utility model discloses a PCB surface treatment tin spraying tool relates to PCB board tin spraying tool field, which comprises a base plate, base plate top fixed mounting has bottom suspension fagging, stand, one side fixed mounting of stand has the rack, slidable mounting has the slider on the stand, one side of slider is equipped with two supports, two one side that the support is close to each other is rotated and is installed the gear, and the gear on two supports meshes mutually, slider one side fixed mounting has the shielding plate, the spout has all been seted up, two in the spout slidable mounting have same scraper, be equipped with ejection mechanism on the bottom suspension fagging. The utility model discloses rational in infrastructure, the running gear passes through the slider and drives the shield plate and move down to compress tightly the PCB board, carry out manual tin spraying and handle, after the tin spraying, promote the scraper, the tin pig cutting that will exceed the shield plate is got rid of, and is ejecting from the bottom suspension fagging with the PCB board through ejection mechanism, takes out the PCB board.

Description

PCB surface treatment tin spraying jig

Technical Field

The utility model relates to a PCB board hot air solder leveling tool field, in particular to PCB surface treatment hot air solder leveling tool.

Background

The PCB is also called as a printed circuit board, is an important electronic component, is a support body of the electronic component, is a carrier for electrical connection of the electronic component, is manufactured by adopting electronic printing technology, is called as a 'printed' circuit board, and the surface tin spraying of the PCB is an important production process.

Among the prior art, when carrying out manual tin spraying and handling, generally need implement accurate location and compress tightly the PCB board with the tool, prevent the dislocation, just so caused tin spraying and handled the back, the PCB board is difficult to take out from the tool, and owing to be manual tin spraying, causes the thickness of tin inequality easily, has certain influence to the PCB quality, consequently, this application discloses a PCB surface treatment tin spraying tool satisfies the demand.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a PCB surface treatment hot air solder leveling tool to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a PCB surface treatment tin spraying jig comprises a base plate, wherein a lower supporting plate and an upright post are fixedly installed at the top of the base plate, a rack is fixedly installed at one side of the upright post, a sliding block is installed on the upright post in a sliding mode, two supports are arranged at one side of the sliding block, a gear is rotatably installed at one side, close to each other, of the two supports and meshed with the rack, two guide rods are fixedly installed at the top of the base plate and positioned at the two sides of the upright post, two sliding holes are formed in the sliding block, one ends of the two guide rods respectively penetrate through the two sliding holes, first springs are sleeved on the two guide rods, the two ends of each first spring are respectively connected with the base plate and the corresponding sliding block, a shielding plate is fixedly installed at one side of the sliding block, sliding grooves are formed in the two sides of the shielding plate, and, the bottom of the scraper is in contact with the top of the shielding plate, the lower supporting plate is provided with an ejection mechanism, and the two sides of the shielding plate are provided with a plurality of locking mechanisms.

By means of the structure, the PCB is placed on the lower supporting plate, the gear is rotated to drive the shielding plate to move downwards through the sliding block, the PCB is pressed, meanwhile, the shielding plate and the lower supporting plate are kept in a contact state through the locking mechanisms on the two sides, manual tin spraying treatment can be conducted, after tin spraying, the scraper is pushed, tin blocks higher than the shielding plate are cut and removed, the locking mechanisms are loosened, the shielding plate is separated from the lower supporting plate under the action of the elastic force of the first spring, and the PCB is ejected out of the lower supporting plate through the ejection mechanism, so that the PCB can be taken out.

Preferably, ejection mechanism including be located push rod in the spout of seting up on the lower support plate, install in the wedge of push rod one end, set up in the kicking block in the T shape spout that the lower support plate top was seted up, T shape spout with the spout is linked together, the bottom of kicking block with wedge inclined plane looks adaptation, the second spring has been cup jointed on the push rod, the both ends of second spring respectively with the push rod the under bracing board is connected.

Further, the push rod is pushed to enable the wedge-shaped block to move towards one side, the inclined surface of the wedge-shaped block generates a pushing force on the ejector block, the ejector block moves towards the top side along the T-shaped sliding hole, and the PCB is ejected out.

Preferably, the locking mechanism comprises a hook, the hook is rotatably installed on the side wall of the substrate and located on the shielding plate and the side wall corresponding to the hook is provided with a clamping block, the hook is matched with the clamping block, a third spring is arranged between the hook and the substrate, and two ends of the third spring are respectively connected with the substrate and the hook.

Further, the bottom of joint piece is the inclined plane, the inclined plane touches the top of trip and has the thrust effect to it, the trip rotates, follows the joint piece continuously moves under the third spring elastic force effect, finally with joint piece top contacts, forms locking, presses trip bottom one end, and locking is relieved.

Preferably, the two sides of the shielding plate are provided with material collecting boxes.

Furthermore, the collecting box can collect the redundant tin blocks cut off by the scraper, so that the jig is convenient to clean.

Preferably, a handle is mounted on the gear.

Furthermore, the handle can conveniently operate the jig, so that the gear rotates.

Preferably, a nameplate is arranged on the side wall of the substrate.

Furthermore, the name plate is recorded with information such as jig names and applicable models, so that the name plate can be conveniently checked and equipment management is facilitated.

Preferably, the top of the lower supporting plate is provided with two positioning pins, and the two positioning pins are matched with the PCB positioning holes.

Furthermore, the PCB can be accurately positioned by the positioning pin, so that the tin material falls on the optimal position.

To sum up, the PCB surface treatment hot air solder leveling tool of this application, through ejection mechanism's setting, utilize the interaction force between wedge and the kicking block, with PCB from its ejecting tool in bottom, be convenient for take out, will exceed the tin excision of shielding plate through the scraper, the big or small uniformity of tin piece of guaranteeing whole spraying on the PCB board, through the setting of collection magazine, the tool clearance of being convenient for, through the setting of handle, improve tool convenient to use nature, through the setting of data plate, can conveniently look over the tool, the equipment management of being convenient for simultaneously.

Drawings

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

Fig. 2 is a schematic view of another perspective structure of the present invention.

Fig. 3 is a sectional view of the present invention.

Fig. 4 is a partially enlarged view of the area a in fig. 3 according to the present invention.

In the figure: 1. a substrate; 2. a lower support plate; 3. a shielding plate; 4. a chute; 5. a material collecting box; 6. positioning pins; 7. an ejection mechanism; 8. a nameplate; 9. a locking mechanism; 10. a handle; 11. a guide bar; 12. a first spring; 13. a slider; 14. a column; 15. a rack; 16. a scraper; 17. a gear; 71. a push rod; 72. a second spring; 73. a wedge block; 74. a top block; 91. clamping block

Detailed Description

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

Example (b): referring to fig. 1-4, a PCB surface treatment tin spraying jig comprises a substrate 1. The substrate 1 may be any one of the flat plates in the prior art, such as a metal plate.

The top of the base plate 1 is fixedly provided with a lower support plate 2. The concave surface of the lower supporting plate 2 is made according to the appearance of the PCB and is matched with the PCB, and the PCB is slightly higher after being placed into the concave surface.

An upright column 14 is fixedly arranged on one side of the top of the base plate 1. The posts 14 may be any cross-sectional post known in the art, such as metal posts.

A rack 15 is fixedly arranged on one side of the upright post 14. The rack 15 is fastened to the upright 14 by any fastening means known in the art, such as bolting.

A sliding block 13 is arranged on the upright post 14 in a sliding way, and two brackets are arranged on one side of the sliding block 13.

The side of the two brackets close to each other is rotatably provided with a gear 17, and the gear 17 is meshed with the rack 15.

Two guide rods 11 are fixedly arranged at the top of the base plate 1 and positioned at two sides of the upright post 14. The two guide rods 11 may be any linear slide rod known in the art, such as linear guide rods.

Two sliding holes are arranged on the sliding block 13, and the two guide rods 11 are respectively arranged in the two sliding holes in a sliding manner.

The two guide rods 11 are sleeved with first springs 12. The spring may be any resilient element known in the art, such as a compression spring. The two ends of the first spring 12 are respectively connected with the top of the base plate 1 and the bottom of the sliding block 13.

The shielding plate 3 is fixedly mounted on one side of the slider 13. The shielding plate 3 may be any one of flat plates in the prior art, such as a metal plate. The shielding plate 3 is provided with corresponding avoiding holes according to the soldering position on the PCB.

The equal fixed mounting in both sides of shielding plate 3 has spout 4, and two spouts 4 are parallel to each other.

The same scraper 16 is slidably mounted in both sliding grooves 4, and the bottom of the scraper 16 is in contact with the top of the shielding plate 3. The scraper 16 scrapes off excess tin on the PCB board.

The lower supporting plate 2 is provided with an ejection mechanism 7.

Both sides of the shielding plate 3 are provided with a plurality of locking mechanisms 9.

Based on the above structure, place the PCB board on lower backup pad 2, the running gear 17 drives shielding plate 3 through slider 13 and moves down to compress tightly the PCB board, a plurality of locking mechanism 9 in both sides keep the contact state with lower backup pad 2 with shielding plate 3 simultaneously, can carry out manual tin spraying and handle, after the tin spraying, promote scraper 16, get rid of the tin piece cutting that exceeds shielding plate 3, loosen locking mechanism 9, receive the effect of first spring 12 elasticity, shielding plate 3 separates with lower backup pad 2, ejecting PCB board from lower backup pad 2 through ejection mechanism 7, can take out the PCB board.

In this embodiment, the push rod 71 is located in a sliding groove formed in the lower support plate 2, the wedge block 73 is installed at one end of the push rod 71, and the top block 74 is arranged in a T-shaped sliding hole formed in the top of the lower support plate 2, the T-shaped sliding hole is communicated with the sliding groove, the bottom of the top block 74 is matched with the inclined surface of the wedge block 73, the push rod 71 is sleeved with the second spring 72, and two ends of the second spring 72 are respectively connected with the push rod 71 and the lower support plate 2. The advantage of this arrangement is that pushing the push rod 71 moves the wedge 73 to one side, the inclined surface of the wedge 73 generates a pushing force to the top block 74, so that the top block 74 moves to the top side along the T-shaped sliding hole and ejects the PCB.

In this embodiment, the locking mechanism 9 includes a hook, the hook is rotatably installed on the sidewall of the substrate 1, a clamping block 91 is installed on the sidewall of the shielding plate 3 corresponding to the hook, the hook is adapted to the clamping block 91, a third spring is disposed between the hook and the substrate 1, and two ends of the third spring are respectively connected to the substrate 1 and the hook. The benefit that sets up like this is, joint piece 91 bottom is the inclined plane, and the inclined plane touches the trip top and has a thrust effect to it, and the trip rotates, along with joint piece 91 continuously removes, under the effect of third spring force, finally contacts with joint piece 91 top, forms locking, presses trip bottom one end, and locking is relieved.

In this embodiment, the shielding plate 3 is provided with material collecting boxes 5 on both sides. The material collecting box 5 may be any one of the containers in the prior art, such as a plastic box. The advantage of this arrangement is that excess tin slugs cut off by the scraper 16 can be collected for cleaning of the jig.

In this embodiment, the gear 17 is provided with a handle 10. The handle 10 may be any rod of any known type, such as a metal rod, which is easily manipulated to rotate the gear 17.

In this embodiment, a nameplate 8 is disposed on the sidewall of the substrate 1. The name plate 8 records information such as the name of the jig, the applicable model and the like. The advantage of setting up like this is that can conveniently look over, the equipment management of being convenient for.

In this embodiment, two positioning pins 6 are arranged at the top of the lower supporting plate 2, and the two positioning pins 6 are matched with the positioning holes of the PCB. The advantage of setting up like this is, and locating pin 6 can carry out accurate location with the PCB board, makes the tin material fall in the optimum position.

The utility model discloses the theory of operation: when the jig is used, a PCB is placed on the lower supporting plate 2, the gear 17 is rotated by rotating the handle 10, the gear 17 is meshed with the rack 15, the rack 15 is fixed on the base plate 1 through the upright post 14, the gear 17 drives the slider 13 to move along the guide rod 11, so that the shielding plate 3 is lifted along the upright post 14, under the action of the elastic force of the first spring 12, the shielding plate 3 is always separated from the lower supporting plate 2 under the condition of no external force, the shielding plate 3 can be kept in a contact state with the lower supporting plate 2 through the locking mechanism 9, the ejection mechanism 7 is operated, the ejector block 74 is moved along the T-shaped sliding hole through the action of the force between the wedge block 73 and the ejector block 74, the PCB is ejected out of the lower supporting plate 2 to be taken out conveniently, and tin higher than the shielding plate 3 is cut off through the scraper 16, so that the size consistency of the tin blocks sprayed on the PCB is ensured.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a PCB surface treatment hot air solder leveling tool, includes base plate (1), its characterized in that: the top of the base plate (1) is fixedly provided with a lower supporting plate (2) and an upright post (14), one side of the upright post (14) is fixedly provided with a rack (15), the upright post (14) is provided with a sliding block (13), one side of the sliding block (13) is provided with two supports, one side of each support close to the other is rotatably provided with a gear (17), the gears (17) on the two supports are meshed, the top of the base plate (1) is positioned on two sides of the upright post (14) and fixedly provided with two guide rods (11), the sliding block (13) is provided with two sliding holes, one end of each guide rod (11) penetrates through the two sliding holes respectively, the two guide rods (11) are sleeved with first springs (12), two ends of each first spring (12) are connected with the base plate (1) and the sliding block (13) respectively, one side of the sliding block (13) is fixedly provided with a shielding plate (3), sliding grooves (4) are formed in two sides of the shielding plate (3), a same scraper (16) is slidably mounted in the sliding grooves (4), the bottom of the scraper (16) is in contact with the top of the shielding plate (3), an ejection mechanism (7) is arranged on the lower supporting plate (2), and a plurality of locking mechanisms (9) are arranged on two sides of the shielding plate (3).

2. The PCB surface treatment tin spraying jig of claim 1, wherein: push-out mechanism (7) including being located push rod (71) in the spout of seting up on lower support plate (2), install in wedge (73) of push rod (71) one end, set up in kicking block (74) in the T shape slide hole that lower support plate (2) top was seted up, T shape slide hole with the spout is linked together, kicking block (74) bottom with wedge (73) inclined plane looks adaptation, second spring (72) have been cup jointed on push rod (71), the both ends of second spring (72) respectively with push rod (71) lower support plate (2) are connected.

3. The PCB surface treatment tin spraying jig of claim 1, wherein: locking mechanism (9) are including the trip, the trip rotates to be installed on base plate (1) lateral wall, be located shield plate (3) with install joint piece (91) on the corresponding lateral wall of trip, the trip with joint piece (91) looks adaptation, the trip with be equipped with the third spring between base plate (1), the both ends of third spring respectively with base plate (1) the trip is connected.

4. The PCB surface treatment tin spraying jig of claim 1, wherein: and material collecting boxes (5) are arranged on two sides of the shielding plate (3).

5. The PCB surface treatment tin spraying jig of claim 1, wherein: and a handle (10) is arranged on the gear (17).

6. The PCB surface treatment tin spraying jig of claim 1, wherein: and a nameplate (8) is arranged on the side wall of the substrate (1).

7. The PCB surface treatment tin spraying jig of claim 1, wherein: the top of lower supporting plate (2) is equipped with two locating pins (6), is equipped with the locating hole on the PCB board, two locating pin (6) and locating hole looks adaptation.