CN210703008U

CN210703008U - Manual welding fixture of multifunctional circuit board

Info

Publication number: CN210703008U
Application number: CN201921695930.8U
Authority: CN
Inventors: 李刚; 徐文华; 廖旭涛; 于鹏; 任宗强; 万富; 徐哲; 刘苒
Original assignee: Anhui Urban Construction Design Research Institute Co ltd
Current assignee: Anhui Urban Construction Design Research Institute Co ltd
Priority date: 2019-10-11
Filing date: 2019-10-11
Publication date: 2020-06-09
Anticipated expiration: 2029-10-11

Abstract

The utility model discloses a manual welding fixture of a multifunctional circuit board, which relates to a fixture, and comprises a bottom plate, wherein a fixed upright post is fixedly arranged at the edge of the top of the bottom plate, an adjustable slide bar capable of sliding up and down on the fixed upright post is arranged on the fixed upright post, an adjustable fixture and an adjustable pressing device are also arranged on the adjustable slide bar in a sliding way, and an adjustable circuit board clamping device is arranged right below the adjustable pressing device; the utility model can effectively realize the clamping and maintenance of the circuit board, and avoid the problem that when the chip is manually clamped and welded, especially the BGA packaged chip, the chip leads to the displacement of the chip pins due to the shaking of the fingers, which leads to the failure of welding; meanwhile, the problem that fingers are scalded due to long-time blow welding of the hot air gun is avoided.

Description

Manual welding fixture of multifunctional circuit board

Technical Field

The utility model relates to a anchor clamps especially relate to a manual welding fixture of multifunctional circuit board.

Background

In the electronic industry, whether in classrooms of colleges and universities, laboratories of scientific research institutions, research and development departments of companies, or even in the homes of vast electronic enthusiasts, manual welding and debugging of circuit boards are indispensable works of electronic engineers. However, some electronic components are not easily soldered, especially for special packages, pin-thinned devices. For example, in actual work, when a single chip microcomputer chip is welded, especially when the single chip microcomputer chip of a BGA package is welded, it becomes extremely difficult, and in the past, the chip pins are aligned to a circuit board by using tweezers, then are pressed by using the tweezers, and then are blown and welded by a hot air gun. The disadvantages of this approach are: firstly, the chip pin is difficult to ensure not to deviate in the gold-deposit blowing welding process, so that the welding fails; secondly, the hot air gun can scald the fingers by scalding the tweezers in the process of blow welding.

Just because of this, constantly explore through the work in, utility model a manual welding fixture of multifunctional circuit board, this welding fixture can effectively solve various encapsulation chip's welding problem, can solve the positioning problem in the chip bonding, can also prevent that the finger from being scalded in welding process. Through the use of the multifunctional circuit board welding fixture, the welding difficulty is greatly reduced, and the welding efficiency is improved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art not enough, provide a manual welding fixture of multifunctional circuit board to solve among the prior art handheld maintenance circuit board rate of accuracy and the relatively poor technical problem of stability.

The utility model discloses a realize through following technical scheme:

the utility model provides a manual welding fixture of multi-functional circuit board, comprising a base plate, bottom plate top edge fixed mounting has the stationary mast, install on the stationary mast and can be on it gliding adjustable litter from top to bottom, it has adjustable anchor clamps and adjustable closing device still to slidable mounting on the adjustable litter, be provided with adjustable circuit board clamping device under the adjustable closing device.

Further, adjustable litter specifically comprises first litter, first external member and the first lock nut with first external member threaded connection, first external member cover is established on fixed column, first external member is passed and the fixed column is tightly pushed up to first lock nut's one end, the one end and the first external member fixed connection of first litter and its extending direction towards the bottom plate inboard and with bottom plate parallel arrangement.

Furthermore, the adjustable clamp is specifically composed of a circular clamp, a second external member and a second locking nut in threaded connection with the second external member, the second external member is sleeved on the first sliding rod, one end of the second locking nut penetrates through the second external member to tightly push against the first sliding rod, and one end of the circular clamp is fixedly connected with the second external member.

Further, adjustable closing device specifically by inside cavity and top cover establish the slip table on first litter, with slip table top threaded connection and the third lock nut of the tight first litter of bottom of top threaded connection, set up at the first spring of slip table inner chamber, be used for sealing slip table bottom opening part and with slip table bottom internal thread connection's spiral shell head, top setting tightly push up first spring bottom and bottom in the slip table and pass the spiral shell head and set up the last item in the slip table outside and constitute, the spiral shell head can not be worn out on the top of last item.

Furthermore, adjustable circuit board clamping device specifically comprises with first litter parallel arrangement and one end and fixed upright fixed connection's second litter, with second litter other end fixed connection and fixed mounting on the bottom plate, cross the fixed block and with second litter mutually perpendicular and the horizontal third litter that sets up, the cover establish on the second litter and the top set up the first slider of horizontal draw-in groove, the cover establish on the second litter and set up the second spring between first slider and fixed upright, two set up in the fixed block both sides and all establish on the third litter and the top all set up the second slider of draw-in groove and constitute.

Further, still the cover is equipped with the third suit on the second litter between fixed stand and the second spring, the top of third suit is threaded connection still has the bottom and tightly pushes up the fourth lock nut of second litter.

Further, the first slide rod, the second slide rod and the third slide rod are all metal strips with square sections.

Further, the circular clamp is rotatably connected with the second sleeve.

Furthermore, a circular hollow hole is formed in the bottom plate.

Further, adjustable anchor clamps set up between fixed stand and adjustable slip table.

The utility model relates to a manual welding fixture of multi-functional circuit board, compared with the prior art, the beneficial effects of the utility model embody:

(1) the equipment has simple structure and convenient operation;

(2) the device realizes effective clamping of the hot air gun and other devices by arranging the fixed upright post, the circular clamp and other devices, simultaneously realizes the purpose of adjusting the horizontal position and the height position, improves the operability of the device and avoids the defects of the handheld device during operation;

(3) through setting up slip table, last item and adjustable closing device for the circuit board can be by the centre gripping effectively, has avoided the drawback of handheld centre gripping, has improved the application scope of equipment simultaneously, has avoided the drawback of the unable centre gripping of circuit board that the volume is less.

Drawings

FIG. 1 is a schematic view of a multifunctional circuit board manual soldering fixture;

fig. 2 is a schematic view of the internal structure of the slide table.

In the figure: 1. a base plate; 2. fixing the upright post; 3. a first slide bar; 4. a first kit; 5. a first lock nut; 6. a circular clamp; 7. a second kit; 8. a second lock nut; 9. a sliding table; 10. a third lock nut; 11. a first spring; 12. a screw head; 13. pressing the shaft; 14. a second slide bar; 15. a fixed block; 16. a third slide bar; 17. a first slider; 18. a second spring; 19. a second slider; 20. a third kit; 21. a fourth lock nut; 22. and (6) hollowing out the holes.

Detailed Description

In order to make the technical solutions of the present application better understood by those skilled in the art, the technical solutions of the present application will be clearly and completely described below in conjunction with the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It is noted that the term "comprising" in the description and claims of the present application is intended to cover a non-exclusive inclusion, e.g. a method comprising a list of steps is not necessarily limited to those steps explicitly listed, but may include other steps not explicitly listed or inherent to such methods. The embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail with reference to examples.

Examples

With reference to fig. 1 and 2, in this embodiment, a multifunctional circuit board manual welding fixture is provided, which includes a bottom plate 1 for supporting the whole device, a fixed upright post 2 is fixedly mounted at the top edge of the bottom plate 1, with reference to fig. 1, in this embodiment, the fixed upright post 2 is cylindrical, and an adjustable slide rod capable of sliding up and down on the fixed upright post 2 is mounted on the fixed upright post, so that the horizontal elevation of a tool on the adjustable slide rod can be effectively adjusted, an adjustable clamp for clamping devices such as a hot air blower and an adjustable pressing device for tightly pressing and fixing a circuit board below are further slidably mounted on the adjustable slide rod, and an adjustable circuit board clamping device is disposed right below the adjustable pressing device.

The working principle is as follows:

after a circuit board to be maintained is clamped on the adjustable circuit board clamping device, the circuit board right below the adjustable circuit board clamping device is compressed through the adjustable pressing device on the adjustable sliding rod, the circuit board is maintained by using equipment in the clamped adjustable clamping fixture, and the horizontal elevation relative to the maintained circuit board can be effectively adjusted through adjusting the adjustable sliding rod, so that the maintenance requirement is met.

In particular, in this embodiment, in order to adjust the horizontal elevation of the adjustable slide rod, the adjustable slide rod is specifically composed of a first slide rod 3, a first sleeve 4 and a first lock nut 5 in threaded connection with the first sleeve 4, the first sleeve 4 is sleeved on the fixed upright 2, one end of the first lock nut 5 penetrates through the first sleeve 4 to tightly prop against the fixed upright 2, one end of the first slide rod 3 is fixedly connected with the first sleeve 4, and the extending direction of the first slide rod faces the inner side of the bottom plate 1 and is arranged in parallel with the bottom plate 1.

Through the arrangement, the horizontal elevation of the first sliding rod 3 can be adjusted by adjusting the horizontal elevation of the first sleeve 4 by using the first locking nut 5, so that the height of equipment on the first sliding rod 3 can be effectively adjusted, and the purpose of height adjustment is achieved.

In particular, in this embodiment, in order to facilitate clamping of maintenance equipment such as a hot air blower, the adjustable clamp is specifically composed of a circular clamp 6, a second sleeve 7 and a second locking nut 8 in threaded connection with the second sleeve 7, the second sleeve 7 is sleeved on the first sliding rod 3, one end of the second locking nut 8 penetrates through the second sleeve 7 to tightly jack the first sliding rod 3, and one end of the circular clamp 6 is fixedly connected with the second sleeve 7.

Through the arrangement, equipment such as the air heater can be effectively clamped by the circular clamp 6, the defect of unstable manual holding is overcome, the maintenance precision is improved, the position of the circular clamp 6 on the first sliding rod 3 can be effectively adjusted through the second sleeve piece 7 by adjusting the second locking nut 8, the maintenance position is adjusted, and the purpose of effectively adjusting the maintenance position is achieved.

In particular, in the present embodiment, in order to achieve effective compression of the circuit board and achieve the best maintenance effect, the adjustable compression device specifically includes a sliding table 9 which is hollow inside and has a top end sleeved on the first sliding rod 3, a third lock nut 10 which is in threaded connection with the top of the sliding table 9 and has a bottom end tightly pushing against the first sliding rod 3, a first spring 11 which is disposed in an inner cavity of the sliding table 9, a screw head 12 which is used for closing an opening at the bottom end of the sliding table 9 and is in threaded connection with the inside of the bottom end of the sliding table 9, and a pressing shaft 13 which has a top end disposed in the sliding table 9 and tightly pushing against the bottom end of the first spring 11 and has a bottom end penetrating through the screw head 12 and disposed outside the sliding table 9.

Through the arrangement, the pressing shaft 13 can effectively tightly push the circuit board right below the pressing shaft under the action of the first spring 11, and meanwhile, the pressing shaft 13 can be effectively maintained and the like through disassembling the screw head 12; the position of the sliding table 9 can be effectively adjusted by using the third locking nut 10, so that the requirements of pressing circuit boards at different positions are met.

In particular, in this embodiment, in order to effectively clamp the circuit board, so that the device can meet the purpose of clamping circuit boards of various types, the adjustable circuit board clamping device specifically comprises a second slide rod 14 which is arranged in parallel with the first slide rod 3 and one end of which is fixedly connected with the fixed upright post 2, a fixed block 15 which is fixedly connected with the other end of the second slide rod 14 and is fixedly installed on the bottom plate 1, a third slide rod 16 which traverses the fixed block 15 and is mutually perpendicular to and horizontally arranged with the second slide rod 14, a first slide block 17 which is sleeved on the second slide rod 14 and is provided with a horizontal slot at the top, a second spring 18 which is sleeved on the second slide rod 14 and is arranged between the first slide block 17 and the fixed upright post 2, and two second slide blocks 19 which are arranged at two sides of the fixed block 15 and are all sleeved on the third slide rod 16 and are provided with slots.

With the above arrangement, the first slider 17 and the two second sliders 19 can effectively clamp the circuit board therein, while the second spring 18 provides a restoring force for the first slider 17, so that it can effectively clamp the circuit board, the second slide bar 14 and the third slide bar 16 effectively guide and limit the plurality of sliders, and the fixing block 15 effectively connects and fixes the second slide bar 14 and the third slide bar 16.

In particular, in this embodiment, in order to avoid the situation that the second spring 18 cannot provide the clamping force for the first slider 17 due to the small volume of the clamped circuit board, a third sleeve 20 is further sleeved on the second slide rod 14 between the fixed upright 2 and the second spring 18, and a fourth lock nut 21 with a bottom end tightly pushing against the second slide rod 14 is further screwed on the top of the third sleeve 20.

Through the arrangement, the position of the third sleeve member 20 is adjusted, and the position of the third sleeve member is locked by the fourth locking nut 21, so that the clamping force provided by the second spring 18 for the first sliding block 17 can be effectively adjusted, and the requirement for clamping various types of circuit boards is met.

In particular, in the present embodiment, the first slide bar 3, the second slide bar 14, and the third slide bar 16 are all long metal strips having a square cross section in order to increase the service life of the facility.

In particular, in the present embodiment, in order to achieve the adjustable working angle of the clamped air heater and other devices, the circular clamp 6 and the second sleeve 7 are rotatably connected, which is not shown in the drawings, in the present embodiment, the two are fixedly connected, and the rotatable connection is an alternative scheme, which can further meet various operation requirements.

In particular, in the present embodiment, in order to conveniently detach the components on the circuit board, the bottom plate 1 is provided with a circular hollow hole 22.

In particular, with reference to fig. 1, in the present embodiment, an adjustable clamp is provided between the fixed upright 2 and the adjustable ramp 9.

Through the arrangement, the operation requirement can be effectively adapted.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

The present invention is not limited to the above description of the embodiments, and those skilled in the art should be able to make modifications and alterations without creative work on the basis of the present invention.

Claims

1. The utility model provides a manual welding fixture of multi-functional circuit board, includes bottom plate (1), its characterized in that, bottom plate (1) top edge fixed mounting has fixed stand (2), install on fixed stand (2) and can be on it gliding adjustable litter from top to bottom, still slidable mounting has adjustable anchor clamps and adjustable closing device on the adjustable litter, be provided with adjustable circuit board clamping device under the adjustable closing device.

2. The multifunctional manual circuit board welding clamp of claim 1, wherein the adjustable slide rod is composed of a first slide rod (3), a first sleeve member (4) and a first locking nut (5) in threaded connection with the first sleeve member (4), the first sleeve member (4) is sleeved on the fixed upright post (2), one end of the first locking nut (5) penetrates through the first sleeve member (4) and tightly props against the fixed upright post (2), one end of the first slide rod (3) is fixedly connected with the first sleeve member (4), and the extending direction of the first slide rod faces towards the inner side of the bottom plate (1) and is parallel to the bottom plate (1).

3. The multifunctional manual circuit board welding clamp of claim 2, wherein the adjustable clamp is composed of a circular clamp (6), a second sleeve (7) and a second locking nut (8) in threaded connection with the second sleeve (7), the second sleeve (7) is sleeved on the first sliding rod (3), one end of the second locking nut (8) penetrates through the second sleeve (7) to tightly abut against the first sliding rod (3), and one end of the circular clamp (6) is fixedly connected with the second sleeve (7).

4. The multifunctional manual circuit board welding fixture of claim 3, wherein the adjustable pressing device is specifically composed of a sliding table (9) which is hollow inside and has a top end sleeved on the first sliding rod (3), a third locking nut (10) which is in threaded connection with the top of the sliding table (9) and has a bottom end tightly pushing against the first sliding rod (3), a first spring (11) which is arranged in an inner cavity of the sliding table (9), a screw head (12) which is used for sealing an opening at the bottom end of the sliding table (9) and is in threaded connection with the inside of the bottom end of the sliding table (9), and a pressing shaft (13) which is arranged in the sliding table (9) and has a bottom end tightly pushing against the bottom end of the first spring (11) and a bottom end penetrating through the screw head (12) and arranged outside the sliding table (9), wherein the top end of the pressing shaft (13) can not penetrate.

5. The multifunctional circuit board manual soldering jig of claim 4, the adjustable circuit board clamping device is composed of a second sliding rod (14) which is arranged in parallel with the first sliding rod (3) and one end of the second sliding rod is fixedly connected with the fixed upright post (2), a fixed block (15) which is fixedly connected with the other end of the second sliding rod (14) and fixedly installed on the bottom plate (1), a third sliding rod (16) which penetrates through the fixed block (15), is mutually perpendicular to the second sliding rod (14) and is horizontally arranged, a first sliding block (17) which is sleeved on the second sliding rod (14) and is provided with a horizontal clamping groove at the top, a second spring (18) which is sleeved on the second sliding rod (14) and is arranged between the first sliding block (17) and the fixed upright post (2), and two second sliding blocks (19) which are arranged on two sides of the fixed block (15), are all sleeved on the third sliding rod (16) and are provided with clamping grooves at the tops.

6. The multifunctional manual circuit board welding fixture as claimed in claim 5, wherein a third sleeve (20) is further sleeved on the second slide rod (14) between the fixed upright (2) and the second spring (18), and a fourth lock nut (21) with the bottom end tightly pushing against the second slide rod (14) is further screwed on the top of the third sleeve (20).

7. The multifunctional manual circuit board welding fixture as claimed in claim 6, wherein the first slide rod (3), the second slide rod (14) and the third slide rod (16) are all metal strips with square cross sections.

8. A multifunctional circuit board manual soldering fixture according to claim 7, characterized in that the circular fixture (6) is rotatably connected with the second sleeve member (7).

9. The multifunctional manual circuit board welding fixture as claimed in claim 8, wherein the bottom plate (1) is provided with a circular hollow hole (22).

10. The multifunctional manual circuit board welding fixture according to claim 9, wherein the adjustable fixture is arranged between the fixed upright (2) and the adjustable sliding table (9).