CN109434238B - Tool jig for conveniently welding circuit board - Google Patents

Tool jig for conveniently welding circuit board Download PDF

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Publication number
CN109434238B
CN109434238B CN201811523070.XA CN201811523070A CN109434238B CN 109434238 B CN109434238 B CN 109434238B CN 201811523070 A CN201811523070 A CN 201811523070A CN 109434238 B CN109434238 B CN 109434238B
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China
Prior art keywords
pipe
shell
circuit board
cylinder
supporting
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Active
Application number
CN201811523070.XA
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Chinese (zh)
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CN109434238A (en
Inventor
梁晓瑾
纪学忠
袁景
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Liaoning Technical University
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Liaoning Technical University
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Priority to CN201811523070.XA priority Critical patent/CN109434238B/en
Publication of CN109434238A publication Critical patent/CN109434238A/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K3/00Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
    • B23K3/08Auxiliary devices therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/04Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work

Abstract

The invention discloses a tooling fixture convenient for welding a circuit board, which comprises a base, a supporting cylinder, a sliding block, a supporting column, an air pipe, a valve, an air cylinder arm, a placing shell, a placing plate, an air suction pump, a connecting pipe, scale marks, a purifying shell, an activated carbon particle layer, a filter screen, a through hole, a clear water layer, a drain pipe, a drain valve, a water injection pipe, a fixing plate, a T-shaped block, a limiting block, a thread groove, a screw rod, a rotating handle, a clamping plate, a rotating column and a pointer. This kind of injection mold convenient to control material flow speed simple structure is convenient for stabilize fixedly with the circuit board, improves the fixed effect of circuit board, and the worker of being convenient for simultaneously reduces the welded rejection rate of circuit board to the welding process on circuit board surface, does benefit to the worker and carries out welding operation, and under the effect through cylinder drive cylinder arm, the board of being convenient for to adjust and place is placed the height, makes things convenient for the worker of different demand heights to weld convenient to use.

Description

Tool jig for conveniently welding circuit board
Technical Field
The invention relates to a tool jig, in particular to a tool jig convenient for welding a circuit board, and belongs to the technical field of application of tool jigs for circuit boards.
Background
The circuit board has the name: ceramic circuit board, alumina ceramic circuit board, aluminum nitride ceramic circuit board, PCB board, aluminum substrate, high frequency board, thick copper board, impedance board, PCB, ultra-thin circuit board, printed (copper etching technology) circuit board, etc. The circuit board enables the circuit to be miniaturized and visualized, and plays an important role in batch production of fixed circuits and optimization of electric appliance layout.
When the tooling jig is used for the existing circuit board, the fixing effect of some tooling jigs on the welded circuit board is poor, the circuit board is easy to slide, the rejection rate of the circuit board is greatly improved, and in the welding process of the tooling jig, the quality of the surrounding working environment is reduced due to the welded smoke, the workers are influenced to work, and the use is influenced. Therefore, the tooling fixture convenient for welding the circuit board is provided for solving the problems.
Disclosure of Invention
The present invention is directed to solving the above problems and providing a tool for conveniently soldering a circuit board.
The invention achieves the aim through the following technical scheme, and the tooling jig convenient for welding the circuit board comprises a base, a placing shell, a supporting mechanism, a tooling jig mechanism and an air suction purification mechanism; the middle part of the top side of the base is fixedly connected with a supporting cylinder, and the right side of the surface of the top of the base is fixedly connected with a placing shell;
the supporting mechanism comprises a supporting cylinder, a cylinder arm, a sliding block and a supporting column, and the sliding block is connected to the inner cavity of the supporting cylinder in a sliding manner; the top of the sliding block is fixedly connected with a supporting column, and the top end of the supporting column is fixedly connected with a placing plate; an air pipe is fixedly communicated with the side surface of the bottom of the supporting cylinder, and a valve is arranged on the surface of the air pipe; the two sides of the supporting cylinder are provided with cylinders fixedly arranged on the surface of the base, and the output ends of the cylinders are connected with cylinder arms; the top end of the cylinder arm is fixedly connected with the bottom of the placing plate;
the tool jig mechanism comprises a placing plate, a fixing plate, a screw rod, a clamping plate and a limiting block, wherein the fixing plate is fixedly connected to two opposite sides of the top of the placing plate; scale marks are arranged on the side surface of the placing plate; the surface of the fixed plate is in threaded connection with a screw, and one end of the screw is fixedly connected with a rotating handle; the other end of the screw is rotatably connected with a clamping plate; the front surface of the clamping plate is fixedly connected with a rotating column, and the surface of the rotating column is sleeved with a pointer; the front surface of the top of the fixing plate is fixedly connected with a T-shaped block, and the bottom end of the T-shaped block is fixedly connected with a limiting block; the bottom of the limiting block is provided with a thread groove, and the thread groove is in threaded connection with the screw;
the air suction purification mechanism comprises a purification shell, a connecting pipe, an air pump, a filter screen, an activated carbon particle layer, a clear water layer and a drain pipe, and the purification shell is fixedly connected to the surface of the middle part of the back side of the placing plate; a clear water layer is arranged at the bottom of the inner cavity of the purifying shell, and a drain pipe fixedly communicated with the bottom of the purifying shell is arranged at the bottom of the clear water layer; the surface of the drain pipe is provided with a drain valve; a water injection pipe is fixedly communicated with the side surface of the middle part of the purification shell; a filter screen is fixedly connected to the inner cavity of the purification shell, and an activated carbon particle layer is arranged at the top of the filter screen; the top of the purification shell is fixedly communicated with a connecting pipe made of a telescopic pipe, and the tail end of the connecting pipe is fixedly communicated with the output end of an air pump fixed on the surface of the base.
Preferably, the number of the air cylinders is two, and the air cylinders are positioned at two opposite sides of the support cylinder.
Preferably, the number of the clamping plates is two, and the two clamping plates are arranged in parallel.
Preferably, the length of the clamping plate is equal to the width of the placing plate, and the clamping plate is connected with the surface of the placing plate in a sliding mode.
Preferably, the cross section of the T-shaped block is of a T-shaped structure, and a limiting block is fixedly connected to the bottom end of the T-shaped block.
Preferably, the number of the through holes is a plurality, and the adjacent through holes are distributed at equal intervals.
Preferably, the top of the clear water layer is lower than the bottoms of the through holes, and the through holes are communicated with the inner cavity of the purifying shell.
Preferably, the number of the fixing plates is two, and the two fixing plates are fixedly connected to two opposite sides of the top of the placing plate in parallel.
Preferably, the axis of the screw is parallel to the plane of the placing plate.
Preferably, the filter screen is fixedly connected to the inner wall of the purification shell at the top of the through hole.
The invention has the beneficial effects that:
1. the tool for conveniently welding the circuit board is simple in structure and novel in design, the circuit board is conveniently and stably fixed, the fixing effect of the circuit board is improved, meanwhile, the welding process of workers on the surface of the circuit board is facilitated, the rejection rate of circuit board welding is reduced, and the welding operation of the workers is facilitated;
2. when the device is used, the placing height of the placing plate can be conveniently adjusted under the action of the cylinder driving cylinder arm through the cylinder, workers with different requirements can conveniently weld the placing plate, the placing plate can be conveniently supported by the auxiliary cylinder arm through the support column, the support cylinder, the air pipe and the valve, the service life of the cylinder is prolonged, and the use is facilitated;
3. when using, be convenient for absorb the purification with the smog that welded circuit board produced, improve the environmental quality of worker welded circuit board department, the worker of being convenient for carries out work, and the practicality value is higher, is fit for using widely.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic side view of the connection between the clamping plate and the holding plate according to the present invention;
FIG. 3 is a schematic view of a connection structure of a limiting block and a screw rod according to the present invention.
In the figure: 1. the base, 2, a supporting cylinder, 3, the slider, 4, the support column, 5, the trachea, 6, the valve, 7, the cylinder, 8, the cylinder arm, 9, place the shell, 10, place the board, 11, the aspiration pump, 12, the connecting pipe, 13, the scale mark, 14, purify the shell, 15, the active carbon grained layer, 16, the filter screen, 17, the through-hole, 18, the clear water layer, 19, the drain pipe, 20, the drain valve, 21, the water injection pipe, 22, the fixed plate, 23, T type piece, 24, the stopper, 2401, the thread groove, 25, the screw rod, 26, rotate the handle, 27, splint, 28, rotate the post, 29, the pointer.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the embodiments described below are only a part of the embodiments of the present invention, and not all of the 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 invention.
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
Referring to fig. 1-3, a tooling fixture for conveniently welding a circuit board includes a base 1, a placing shell 9, a supporting mechanism, a tooling fixture mechanism and a suction purification mechanism; the middle part of the top side of the base 1 is fixedly connected with a supporting cylinder 2, the right side of the surface of the top of the base 1 is fixedly connected with a placing shell 9, and the placed shell 9 is convenient for storing temporary articles;
the supporting mechanism comprises a supporting cylinder 2, a cylinder 7, a cylinder arm 8, a sliding block 3 and a supporting column 4, and the sliding block 3 is connected to the inner cavity of the supporting cylinder 2 in a sliding manner; the top of the sliding block 3 is fixedly connected with a supporting column 4, and the top end of the supporting column 4 is fixedly connected with a placing plate 10; an air pipe 5 is fixedly communicated with the side surface of the bottom of the supporting cylinder 2, a valve 6 is arranged on the surface of the air pipe 5, and the valve 6 is arranged to facilitate the control of the ventilation and the deflation of the air pipe 5; the air cylinders 7 fixedly arranged on the surface of the base 1 are arranged on the two sides of the supporting cylinder 2, the output ends of the air cylinders 7 are connected with the air cylinder arms 8, and the arranged air cylinders 7 are convenient for driving the air cylinder arms 8 to move; the top end of the cylinder arm 8 is fixedly connected with the bottom of the placing plate 10;
the tool jig mechanism comprises a placing plate 10, a fixing plate 22, a screw 25, a clamping plate 27 and a limiting block 24, wherein the fixing plate 22 is fixedly connected to two opposite sides of the top of the placing plate 10; the side surface of the placing plate 10 is provided with scale marks 13, and the scale marks 13 are arranged, so that the circuit board can be placed in the middle of the placing plate 10 better; the surface of the fixing plate 22 is in threaded connection with a screw 25, one end of the screw 25 is fixedly connected with a rotating handle 26, and the rotating handle 26 is arranged to facilitate the rotation of the screw 25; the other end of the screw 25 is rotatably connected with a clamping plate 27, and the arranged clamping plate 27 is convenient for stably clamping the circuit board through the clamping plate 27; the front surface of the clamping plate 27 is fixedly connected with a rotating column 28, and the surface of the rotating column 28 is sleeved with a pointer 29; the top front surface of the fixing plate 22 is fixedly connected with a T-shaped block 23, and the bottom end of the T-shaped block 23 is fixedly connected with a limiting block 24; the bottom of the limiting block 24 is provided with a thread groove 2401, and the thread groove 2401 is in threaded connection with the screw 25;
the air suction purification mechanism comprises a purification shell 14, a connecting pipe 12, an air pump 11, a filter screen 16, an activated carbon particle layer 15, a clear water layer 18 and a drain pipe 19, and the purification shell 14 is fixedly connected to the surface of the middle part of the back side of the placing plate 10; a clear water layer 18 is arranged at the bottom of the inner cavity of the purifying shell 14, a drain pipe 19 fixedly communicated with the bottom of the purifying shell 14 is arranged at the bottom of the clear water layer 18, and the clear water layer 18 is arranged to facilitate storage of filter residues; the drain pipe 19 is provided with a drain valve 20 on the surface, and the drain valve 20 is arranged to control the water in the purifying shell 14 to be drained through the drain pipe 19; a water injection pipe 21 is fixedly communicated with the side surface of the middle part of the purifying shell 14; a filter screen 16 is fixedly connected to the inner cavity of the purification shell 14, and an activated carbon particle layer 15 is arranged at the top of the filter screen 16; the top of the purifying shell 14 is fixedly communicated with a connecting pipe 12 made of a telescopic pipe, and the tail end of the connecting pipe 12 is fixedly communicated with the output end of an air pump 11 fixed on the surface of the base 1.
The number of the cylinders 7 is two, and the cylinders 7 are positioned at two opposite sides of the supporting cylinder 2, so that the placing plate 10 can be stably pushed to move through the cylinders 7; the number of the clamping plates 27 is two, and the two clamping plates 27 are arranged in parallel, so that the circuit board can be stably clamped through the clamping plates 27; the length of the clamping plate 27 is equal to the width of the placing plate 10, and the clamping plate 27 is in sliding connection with the surface of the placing plate 10, so that the clamping plate 27 is placed compactly and is convenient to use; the cross section of the T-shaped block 23 is of a T-shaped structure, and the bottom end of the T-shaped block 23 is fixedly connected with a limiting block 24, so that the limiting block 24 can be conveniently and stably fixed, and the service performance is improved; the number of the through holes 17 is a plurality, and the adjacent through holes 17 are distributed at equal intervals, so that gas generated by welding can be conveniently pumped into the purifying shell 14 through the through holes 17; the top of the clear water layer 18 is lower than the bottom of the through holes 17, and the through holes 17 are communicated with the inner cavity of the purifying shell 14, so that water in the clear water layer 18 is prevented from being discharged through the through holes 17, and filter residue treatment is facilitated; the number of the fixing plates 22 is two, and the two fixing plates 22 are fixedly connected to two opposite sides of the top of the placing plate 10 in parallel; the axis of the screw rod 25 is parallel to the plane where the placing plate 10 is located, so that the screw rod 25 is guaranteed to stably move in the horizontal direction; the filter screen 16 is fixedly connected to the inner wall of the purification shell 14 at the top of the through hole 17, so that the inhaled gas can be conveniently filtered and purified, and the use is convenient.
When the device is used, all the electric elements in the device are externally connected with a power supply and a control switch, firstly, the electric elements in the device are externally connected with the control switch and the power supply, the cylinder 7 is started, the cylinder 7 drives the cylinder arm 8 to push the placing plate 10 to move upwards, the placing plate 10 drives the supporting column 4 to pull the sliding block 3 to slide along the inner wall of the supporting cylinder 2, when the placing plate 10 is adjusted to be placed at a proper position, the cylinder 7 and the valve 6 are closed, a circuit board to be welded is placed at the central position of the surface of the placing plate 10, then an operator operates the left rotating handle 26 and the right rotating handle 26 by hands, the rotating handles 26 drive the screw rods 25 to move relatively, further the screw rods 25 push the clamping plates 27 connected with the tail ends in a rotating mode to move relatively, further, the circuit board on the surface of the placing plate 10 is stably fixed, and simultaneously, under the action of, make things convenient for 25 horizontal stabilization of screw rod to remove, and when worker welded circuit board, start air pump 11, air pump 11 passes through the gas in connecting pipe 12 extraction purification shell 14, purification shell 14 will place the gaseous suction of 10 surface welding circuit boards of board through-hole 17 and purify in shell 14, the suction purifies the gaseous passage in shell 14, filter screen 16 carries out the filtration of dust such as filter residue, the filter residue drops in clear water layer 18 at last, and gaseous passing through behind filter screen 16 is adsorbing through activated carbon particle layer 15 and is purifying, clean gas passes through connecting pipe 12 and air pump 11 and discharges, thereby accomplish the use of frock tool for the welded circuit board.
The cylinder 7 adopts an SC-80 type electric push rod produced by Jiajing pneumatic hydraulic limited company and a related matched power supply and circuit thereof.
The air pump 11 adopts an XGB-120W type electric push rod produced by Yashiba electromechanics and a related matched power supply and circuit thereof.
It is well within the skill of those in the art to implement and protect the present invention without undue experimentation and without undue experimentation that the present invention is directed to software and process improvements.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. 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. Any reference sign in a claim should not be construed as limiting the claim concerned.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (1)

1. The utility model provides a be convenient for tool for welded circuit board which characterized in that: the device comprises a base (1), a placing shell (9), a supporting mechanism, a tool fixture mechanism and an air suction purification mechanism; wherein the middle part of the top side of the base (1) is fixedly connected with a supporting cylinder (2), and the right side of the surface of the top of the base (1) is fixedly connected with a placing shell (9);
the supporting mechanism comprises a supporting cylinder (2), an air cylinder (7), an air cylinder arm (8), a sliding block (3) and a supporting column (4), and the sliding block (3) is connected to the inner cavity of the supporting cylinder (2) in a sliding manner; the top of the sliding block (3) is fixedly connected with a supporting column (4), and the top end of the supporting column (4) is fixedly connected with a placing plate (10); an air pipe (5) is fixedly communicated with the side surface of the bottom of the supporting cylinder (2), and a valve (6) is arranged on the surface of the air pipe (5); the two sides of the supporting cylinder (2) are provided with cylinders (7) fixedly arranged on the surface of the base (1), and the output ends of the cylinders (7) are connected with cylinder arms (8); the top end of the cylinder arm (8) is fixedly connected with the bottom of the placing plate (10);
the tool fixture mechanism comprises a placing plate (10), a fixing plate (22), a screw (25), a clamping plate (27) and a limiting block (24), wherein the fixing plate (22) is fixedly connected to two opposite sides of the top of the placing plate (10); scale marks (13) are arranged on the side surface of the placing plate (10); a screw rod (25) is connected to the surface of the fixing plate (22) in a threaded manner, and one end of the screw rod (25) is fixedly connected with a rotating handle (26); the other end of the screw rod (25) is rotatably connected with a clamping plate (27); the front surface of the clamping plate (27) is fixedly connected with a rotating column (28), and the surface of the rotating column (28) is sleeved with a pointer (29); the front surface of the top of the fixing plate (22) is fixedly connected with a T-shaped block (23), and the bottom end of the T-shaped block (23) is fixedly connected with a limiting block (24); the bottom of the limiting block (24) is provided with a thread groove (2401), and the thread groove (2401) is in threaded connection with the screw (25);
the air suction purification mechanism comprises a purification shell (14), a connecting pipe (12), an air pump (11), a filter screen (16), an activated carbon particle layer (15), a clear water layer (18) and a drain pipe (19), and the purification shell (14) is fixedly connected to the surface of the middle part of the back side of the placing plate (10); a clear water layer (18) is arranged at the bottom of the inner cavity of the purifying shell (14), and a drain pipe (19) fixedly communicated with the bottom of the purifying shell (14) is arranged at the bottom of the clear water layer (18); the surface of the drain pipe (19) is provided with a drain valve (20); a water injection pipe (21) is fixedly communicated with the side surface of the middle part of the purifying shell (14); a filter screen (16) is fixedly connected to the inner cavity of the purification shell (14), and an activated carbon particle layer (15) is arranged at the top of the filter screen (16); the top of the purification shell (14) is fixedly communicated with a connecting pipe (12) made of a telescopic pipe, and the tail end of the connecting pipe (12) is fixedly communicated with the output end of an air pump (11) fixed on the surface of the base (1);
the number of the cylinders (7) is two, and the cylinders (7) are positioned on two opposite sides of the supporting cylinder (2); the top of the clear water layer (18) is lower than the bottoms of the through holes (17), and the through holes (17) are communicated with the inner cavity of the purifying shell (14); the number of the fixing plates (22) is two, and the two fixing plates (22) are fixedly connected to two opposite sides of the top of the placing plate (10) in parallel; the axis of the screw rod (25) is parallel to the plane where the placing plate (10) is located; filter screen (16) fixed connection is at purification shell (14) inner wall at through-hole (17) top, splint (27) figure is two, and parallel placement between two splint (27), splint (27) length with place board (10) width equal, and splint (27) with place board (10) surface sliding connection, the T type structure is personally submitted in T type piece (23) is transversal, and T type piece (23) bottom fixedly connected with stopper (24), through-hole (17) figure is a plurality of, and the equidistance distributes between adjacent through-hole (17).
CN201811523070.XA 2018-12-13 2018-12-13 Tool jig for conveniently welding circuit board Active CN109434238B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811523070.XA CN109434238B (en) 2018-12-13 2018-12-13 Tool jig for conveniently welding circuit board

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Application Number Priority Date Filing Date Title
CN201811523070.XA CN109434238B (en) 2018-12-13 2018-12-13 Tool jig for conveniently welding circuit board

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CN109434238A CN109434238A (en) 2019-03-08
CN109434238B true CN109434238B (en) 2021-02-19

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02212037A (en) * 1989-02-13 1990-08-23 Daihatsu Motor Co Ltd Carry-in, centering and carry-out device for joining material
US6170733B1 (en) * 1998-02-26 2001-01-09 Fritz & Hill Corporation Breakaway mounting device for use with printed circuit board flow solder machines
CN203725951U (en) * 2014-02-27 2014-07-23 中国矿业大学 Smoke filtering device for welding on circuit boards
CN207805295U (en) * 2017-11-30 2018-09-04 大唐华银电力股份有限公司耒阳分公司 A kind of coal-fired plant flue gas high-level cleaner
CN207841736U (en) * 2018-01-14 2018-09-11 南京五环新型材料科技有限公司 It is a kind of to facilitate the build concrete agitating device for adjusting agitating shaft height
CN108747165A (en) * 2018-07-28 2018-11-06 江西省东龙实业股份有限公司 A kind of circuit board welding tool
CN208145719U (en) * 2018-02-09 2018-11-27 河北允升精细化工有限公司 A kind of device for recovering tail gas
CN208195972U (en) * 2018-03-22 2018-12-07 叶锋 A kind of automobile air compressor bracket welding bench

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02212037A (en) * 1989-02-13 1990-08-23 Daihatsu Motor Co Ltd Carry-in, centering and carry-out device for joining material
US6170733B1 (en) * 1998-02-26 2001-01-09 Fritz & Hill Corporation Breakaway mounting device for use with printed circuit board flow solder machines
CN203725951U (en) * 2014-02-27 2014-07-23 中国矿业大学 Smoke filtering device for welding on circuit boards
CN207805295U (en) * 2017-11-30 2018-09-04 大唐华银电力股份有限公司耒阳分公司 A kind of coal-fired plant flue gas high-level cleaner
CN207841736U (en) * 2018-01-14 2018-09-11 南京五环新型材料科技有限公司 It is a kind of to facilitate the build concrete agitating device for adjusting agitating shaft height
CN208145719U (en) * 2018-02-09 2018-11-27 河北允升精细化工有限公司 A kind of device for recovering tail gas
CN208195972U (en) * 2018-03-22 2018-12-07 叶锋 A kind of automobile air compressor bracket welding bench
CN108747165A (en) * 2018-07-28 2018-11-06 江西省东龙实业股份有限公司 A kind of circuit board welding tool

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