CN111687512A - Elastic piece welding machine - Google Patents
Elastic piece welding machine Download PDFInfo
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- CN111687512A CN111687512A CN202010590140.4A CN202010590140A CN111687512A CN 111687512 A CN111687512 A CN 111687512A CN 202010590140 A CN202010590140 A CN 202010590140A CN 111687512 A CN111687512 A CN 111687512A
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- welding
- top end
- impeller
- elastic sheet
- wire
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
- B23K3/06—Solder feeding devices; Solder melting pans
- B23K3/0607—Solder feeding devices
- B23K3/063—Solder feeding devices for wire feeding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
- B23K3/08—Auxiliary devices therefor
- B23K3/087—Soldering or brazing jigs, fixtures or clamping means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/36—Electric or electronic devices
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
The invention provides a spring plate welding machine, which relates to the technical field of welding processing and comprises a bottom support plate, wherein the top end of the bottom support plate is provided with a side support rib plate vertically fixed at the top end of the bottom support plate; the impeller and the wire welding reel are driven to synchronously and simply rotate by the motor and the like in an intermittent mode, the welding pen intermittently stays above each elastic sheet by matching with the intermittent movement of the sliding block, and in the process of staying above each elastic sheet by welding through the impeller and the wire welding reel, the liquid melted by the welding wire is thrown onto the welding sheet of the circuit board, and the welding sheet is welded and fixed on the circuit board, so that the welding efficiency of the elastic sheets is improved.
Description
Technical Field
The invention relates to the technical field of welding processing, in particular to a spring plate welding machine.
Background
The spring plate is used in shock-absorbing device and relay delay device of machinery and vehicle, and is applied to actuating mechanism in different environments according to the characteristics of material. The contact plates must have a low electrical resistance and are therefore made of bronze, the spring plates being characterized by an easy bending in one direction only, the plane of minimum stiffness, and by a high tensile and bending stiffness in the other direction. Therefore, the flat spring is suitable for a sensitive element, an elastic support, a positioning device and a flexible connection in a detection instrument or an automatic device.
At present, in the field of circuit board control, an elastic sheet is often used as a control switch, and the welding of the elastic sheet on a circuit board is a conventional method in the field, and currently, patent No. CN201821205057.5 discloses an elastic sheet welding device, which comprises a workbench, an XY moving mechanism, a positioning mechanism, a rotating shaft mechanism and a collimation welding mechanism; the positioning mechanism is arranged on the rotating shaft mechanism; the rotating shaft mechanism is arranged on the XY moving mechanism and drives the positioning mechanism to rotate; the XY moving mechanism is arranged on the workbench; the collimation welding mechanism is arranged on the workbench in a lifting way. When the device is used, the rotating shaft mechanism is driven to the upper blanking area by the XY moving mechanism, the positioning mechanism with the shell and the elastic sheet placed on the rotating shaft mechanism is placed by an operator, then the rotating shaft mechanism and the positioning mechanism are driven to a welding area by the XY moving mechanism, the rotating shaft mechanism adjusts the welding angle of the elastic sheet according to the elastic sheets with different specifications in the welding process, and the compatibility of the device is guaranteed. After the multi-angle welding is completed, the XY moving mechanism drives the rotating shaft mechanism and the positioning mechanism to the upper blanking area again, and an operator only needs to replace another set of positioning mechanism, so that the automation degree and the production efficiency are greatly improved.
The shrapnel welding equipment disclosed by the patent still has some defects in actual use, and the specific defects are as follows:
the utility model provides a, current, to the welding of shell fragment, mainly weld through artifical handheld welding pen or machine centre gripping welding pen, in the welding process, need support fixedly to the shell fragment, the shell fragment is crooked because the structure, and it is inhomogeneous easily to appear the atress when supporting fixedly, leads to producing in welding process and slides, influences the accurate nature in position of shell fragment when welding on the circuit board.
Disclosure of Invention
The invention aims to provide a spring plate welding machine, which solves the technical problems that in the prior art, when a welding pen is held by a hand or a machine is used for clamping the welding pen for welding, the spring plate needs to be supported and fixed in the welding process, and the spring plate is easy to slide in the welding process due to the fact that the structure is bent and the stress is uneven when the spring plate is supported and fixed, so that the position accuracy of the spring plate during welding on a circuit board is influenced.
The technical problem to be solved by the invention is realized by adopting the following technical scheme: a shell fragment welding machine comprises a bottom support plate, wherein a side support rib plate vertically fixed to the top end of the bottom support plate is arranged at the top end of the bottom support plate, a top support rib plate horizontally fixed is arranged at the top end of the side support rib plate, a through slide hole is formed in the top end of the top support rib plate, a slide block is installed in the slide hole of the top support rib plate in a sliding fit mode, a through nut sleeve is arranged in the middle of the slide block, a threaded screw rod is fixedly installed at the top end of the top support rib plate, the nut sleeve is fixedly installed on the threaded screw rod in a threaded fit mode, a gear is fixedly installed at one end of the threaded screw rod, a first servo motor is fixedly installed at the top end of the top support rib plate and close to the gear, and the first servo motor drives the threaded screw rod to rotate through;
a linear push rod motor is fixedly installed at the top end of the sliding block, a push rod extends downwards from the linear push rod motor, a welding pen is fixed at the bottom end of the push rod, and the welding pen is erected at the top end of the bottom supporting plate;
the middle part of the top end of the bottom support plate is provided with a positioning groove with a U-shaped structure, the circuit board is placed in the positioning groove at the top end of the bottom support plate, the two sides of the positioning groove are symmetrically provided with abdicating grooves, the bottom end of each abdicating groove is provided with threaded holes at equal intervals, each threaded hole of each abdicating groove is connected with a threaded rod through a thread, the top end of each threaded rod is fixedly provided with a pressing foot base, the middle part of the top end of each pressing foot base is hinged with a pressing foot, and the pressing foot presses the circuit board when the top end of each pressing foot base;
the middle part of the side supporting ribbed plate is provided with a run-through abdicating hole, the bottom end of the abdicating hole is hinged with a supporting wheel, a straight rod-shaped pad post is arranged in the abdication hole, one end of the pad post extends into the bottom of the elastic sheet arranged at the top end of the circuit board, the other end of the cushion column is fixed on the supporting frame, the bottom end of the supporting frame is provided with a second sliding block, the rear side of the side supporting ribbed plate is provided with a chute base, the top end of the chute base is provided with a chute, a second threaded screw rod is fixedly arranged in the chute, one end of the second threaded screw rod is fixedly connected with an output shaft of a second servo motor, the servo motor is fixed in a motor groove, the motor groove is arranged at the rear side of the side supporting rib plate, the second sliding block is embedded into the sliding groove in a sliding fit mode, and the second sliding block embedded into the sliding groove is installed on the second threaded screw rod in a threaded fit mode;
the side wall of the welding pen is fixedly provided with a pressure spring, the bottom end of the pressure spring is fixedly provided with a square block-shaped elastic sheet pressure foot, the bottom end face of the elastic sheet pressure plate is parallel to the top face of the elastic sheet, and the elastic sheet pressure plate extends out of the bottom end of the welding pen.
As a preferred technical scheme of the invention, the welding pen comprises a rack base arranged at the bottom end of the push rod and a welding pen shell fixed on the side wall of the rack base, wherein a welding wire reel is fixedly installed at the top end of the rack base, a welding wire is wound on the welding wire reel, a wire inlet hole is formed in the top end of the welding pen shell, a through hot melting cavity is formed below the wire inlet hole, and a position-giving opening is formed in the middle of the hot melting cavity;
an impeller shell is fixedly installed on the side wall of the welding pen shell, an impeller cavity is formed in the impeller shell, a cylindrical impeller is installed in the impeller cavity through a bearing, the outer circular surface of the impeller is close to a yielding port of the hot melting cavity, impeller blades are arranged on the outer wall of the impeller at equal intervals, the impeller blades penetrate through the yielding port and extend into the hot melting cavity,
the wire welding machine is characterized in that a motor is fixedly mounted at the top end of the rack base, one end of the impeller extends out of the impeller shell through a bearing, a belt wheel is mounted at one end of the impeller extending out of the impeller shell, the belt wheel is mounted at one end of the wire welding reel through a bearing, and the motor drives the impeller and the wire welding reel to synchronously rotate through a transmission belt.
As a preferred technical scheme of the invention, a power supply box is fixedly arranged on the outer side of the welding pen, a threaded heating pipe is fixedly arranged in the welding pen, and the hot melting cavity is arranged in the middle of the threaded heating pipe.
As a preferable technical scheme of the invention, the top end of the impeller blade extending into the hot melting cavity is provided with an inclined plane.
As a preferred technical scheme, the cushion column comprises an air passage joint, a cylindrical rod, gasket bases, second supporting grooves, air bags, air passages and air holes, the air passage joint is arranged at the top end of the cushion column fixed on a supporting rack, a plurality of gasket bases are arranged on the outer wall of the cushion column at equal intervals, circular hole-shaped air holes are formed in the cushion column, air passages communicated with the air holes are formed in the outer circular surface of each gasket base at equal intervals, the air bags are fixedly installed on the outer circular surface of each gasket base, and the second supporting grooves matched with the two sides of the elastic sheet are formed in the middle of the outer circular surface of each air bag.
As a preferable technical scheme of the present invention, the two side walls of the airbag are symmetrically provided with wrinkles.
According to a preferable technical scheme of the invention, the outer circular surface of the supporting wheel is provided with raised supporting teeth at equal intervals, and the top end of each supporting tooth is provided with an arc groove matched with the outer wall of the cushion column.
Compared with the prior art, the invention has the beneficial effects that:
firstly, the invention is provided with a locating slot with a U-shaped structure in the middle of the top end of a bottom support plate, a circuit board is placed in the locating slot at the top end of the bottom support plate and is pressed and fixed by pressing feet at two sides of the locating slot, the position firmness of the circuit board in the welding process is improved, when the elastic sheet is placed on the circuit board, the elastic sheet is bent and is easy to tilt in the welding process when placed on the circuit board, the invention is provided with a through abdicating hole in the middle of a side support rib plate, an extensible cushion post is arranged in the abdicating hole, the elastic sheet is extended into the bent bottom of the elastic sheet through the cushion post to support the elastic sheet, so that the stress of the elastic sheet is uniform in the welding process, the welding position is accurate, firm and reliable, in the welding process, the invention is fixedly provided with an elastically extensible elastic sheet pressing foot on the side wall of a welding pen, and, the shell fragment presser foot compresses tightly fixedly with treating the shell fragment periphery at welding position earlier, improves the shell fragment fastness of welding on the circuit board to and improve the shell fragment accurate nature of welding on the circuit board.
Secondly, the middle part of the lateral support rib plate is provided with a through abdicating hole, the bottom of the abdicating hole is provided with a rotatable support wheel, the cushion post can axially extend and retract in the abdicating hole through the rotatable support wheel, the cushion post can conveniently extend into the bottom of the elastic sheet, and after welding is completed, the cushion post can be conveniently drawn out from the bottom of the elastic sheet, so that the operation simplicity of the elastic sheet is improved. The elastic sheet is stably placed on the circuit board through the air bag, and the welding position accuracy is improved.
The welding pen is internally provided with a wire inlet hole and a hot melting cavity, the wire inlet hole is arranged above the hot melting cavity, the hot melting cavity is communicated downwards, the top end of a welding wire extends into the wire inlet hole, an impeller and a welding wire winding frame are intermittently driven by a motor and the like to synchronously and simply rotate, the welding wire winding frame and the like intermittently rotate, the welding wire is replayed at equal intervals, the welding wire intermittently moves in the wire inlet hole at equal intervals, the top end of the welding wire moves towards the hot melting cavity at equal intervals, the welding wire moved into the hot melting cavity is melted into liquid through a thread heating pipe and falls onto the impeller sheet below, the melted liquid falls downwards from the impeller sheet through the intermittent rotation of the motor and the like, and the melted liquid of the welding wire cannot be solidified due to the high temperature in the hot melting cavity, and falls onto a spring sheet below the welding pen downwards through the communicated hot melting cavity to weld.
And in the process of stopping the welding pen above each elastic sheet, the liquid melted by the welding wire is put on the welding sheet of the circuit board, and the welding sheet is welded and fixed on the circuit board, so that the welding efficiency of the elastic sheets is improved.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a front view of the spring welder of the present invention;
FIG. 2 is a left side view of the spring welding machine of the present invention;
FIG. 3 is a schematic structural diagram of the soldering pen for soldering the spring plate on the circuit board;
FIG. 4 is a schematic view of a partial cross-sectional view of the washer base of the present invention mounted on a cylindrical rod;
FIG. 5 is a schematic cross-sectional view of an airbag of the present invention mounted on a cushion ring seat;
FIG. 6 is an enlarged view of a portion of FIG. 3 illustrating the present invention;
FIG. 7 is a schematic view of the structure of the invention with spring plate soldered on the circuit board;
in the figure: 1. a bottom support plate, 2, a side support rib plate, 3, a top support rib plate, 4, a sliding block, 5, a linear push rod motor, 6, a nut sleeve, 7, a threaded screw rod, 8, a first servo motor, 9, a gear, 10, a push rod, 11, a welding pen, 1101, a welding wire reel, 1102, a welding wire, 1103, a motor, 1104, a transmission belt, 1105, an impeller shell, 1106, an impeller cavity, 1107, an impeller wheel, 1108, an impeller wheel blade, 1109, a wire feeding hole, 1110, a hot melting cavity, 1111, a power box, 1112, a spiral heating pipe, 1113, a rack base, 1114, a welding pen shell, 12, a pressure spring, 13, a spring plate, 14, a yielding hole, 15, a positioning groove, 16, a yielding groove, 17, a threaded hole, 18, a pressing foot, 19, a pressing foot base, 20, 11121, a motor groove, 22, a second servo motor, 23, a chute base, 24, a chute, 25 and a second threaded screw rod, 26. the second slider, 27, a support frame, 28, an air channel joint, 29, a cushion column, 2902, a gasket base, 2903, a fold, 2904, a second bearing bracket, 2905, an air bag, 2906, an air channel, 2907, a vent hole, 30, a support wheel, 31 and a bearing tooth.
Detailed Description
In order to make the technical means, the creation features, the achievement purposes and the effects of the invention easy to understand, the invention is further described below by combining with the specific drawings, and it is to be noted that the embodiments and the features in the embodiments can be combined with each other in the application without conflict.
Referring to fig. 1-7, there is shown a schematic diagram of an overall structure of a spring plate welding machine,
a shell fragment welding machine comprises a bottom support plate 1, wherein the top end of the bottom support plate 1 is provided with a side support rib plate 2 vertically fixed to the top end of the bottom support plate 1, the top end of the side support rib plate 2 is provided with a top support rib plate 3 horizontally fixed, the top end of the top support rib plate 3 is provided with a through sliding hole, a sliding block 4 is installed in the sliding hole of the top support rib plate 3 in a sliding fit mode, the middle part of the sliding block 4 is provided with a through nut sleeve 6, the top end of the top support rib plate 3 is fixedly provided with a threaded lead screw 7, the nut sleeve 6 is fixedly installed on the threaded lead screw 7 in a threaded fit mode, one end of the threaded lead screw 7 is fixedly provided with a gear 9, the top end of the top support rib plate 3 and the position close to the gear 9 are fixedly provided with a servo motor 8, and the servo motor 8 drives the threaded lead screw 7 to; the first servo motor 8 and the motor 1103 are coordinated to move to drive the welding pen 11 to perform spot welding at equal intervals, so that the accuracy of the welding position of the welding pen 11 is improved,
a linear push rod motor 5 is fixedly installed at the top end of the sliding block 4, a push rod 10 extends downwards from the linear push rod motor 5, a welding pen 11 is fixed at the bottom end of the push rod 10, and the welding pen 11 is erected at the top end of the bottom supporting plate 1; standing upright on the top end of the bottom support plate 1, so that the liquid melted by the welding wire can drip downwards and outwards from the inside of the welding pen 11 to fall on the spring piece of the circuit board.
The middle part of the top end of the bottom support plate 1 is provided with a positioning groove 15 with a U-shaped structure, the circuit board is placed in the positioning groove 15 at the top end of the bottom support plate 1, two sides of the positioning groove 15 are symmetrically provided with abdicating grooves 16, the bottom ends of the abdicating grooves 16 are provided with threaded holes 17 at equal intervals, each threaded hole 17 of the abdicating groove 16 is connected with a threaded rod 20 through a thread, the top end of the threaded rod 20 is fixedly provided with a pressing foot base 19, the middle part of the top end of the pressing foot base 19 is hinged with a pressing foot 18, the pressing foot 18 presses the circuit board when the top end of the pressing foot base 19 is vertically fixed with the pressing foot base 19, the other end of the pressing foot 18 is provided with a round hole, one side of the pressing foot base 19 is also provided with a round hole,
a through abdicating hole 14 is formed in the middle of the side supporting rib plate 2, a supporting wheel 30 is hinged to the bottom end of the abdicating hole 14, a straight rod-shaped pad column 29 is installed in the abdicating hole 14, one end of the pad column 29 extends into the bottom of an elastic sheet placed at the top end of the circuit board, the other end of the pad column 29 is fixed on a supporting rack 27, a second slider 26 is arranged at the bottom end of the supporting rack 17, a chute base 23 is arranged at the rear side of the side supporting rib plate 2, a chute 24 is formed at the top end of the chute base 23, a second threaded screw rod 25 is fixedly installed in the chute 24, one end of the second threaded screw rod 25 is fixedly connected with an output shaft of a second servo motor 22, the servo motor 22 is fixed in a motor groove 21, the motor groove 21 is formed at the rear side of the side supporting rib plate 2, the second slider 26 is embedded in the chute 24 in a sliding fit manner, and the second slider 26 embedded in the;
a pressure spring 12 is fixedly mounted on the side wall of the welding pen 11, a square block-shaped spring plate pressure foot 13 is fixed at the bottom end of the pressure spring 12, the bottom end face of the spring plate pressure plate 13 is parallel to the top face of the spring plate, and the spring plate pressure plate 13 extends out of the bottom end of the welding pen 11.
Wherein, the invention is equipped with the locating slot 15 of the U-shaped structure in the middle of top of the bottom shoe plate 1, the circuit board is placed in locating slot 15 of the top of the bottom shoe plate 1, compress tightly and fix through the pressing foot 18 of both sides of locating slot 15, improve the position fastness of the circuit board in the course of welding, when the shell fragment is placed on circuit board, because the shell fragment is crooked, it is apt to produce and tilt in the course of welding placed on circuit board, the invention through having the through hole of stepping down 14 in the middle of the side support rib plate 2, the hole of stepping down 14 is fitted with the flexible bolster 29, stretch into the crooked bottom of the shell fragment through the bolster 29, support the shell fragment, make the shell fragment in the course of welding, the stress is uniform, the welding position is accurate, firm and reliable, in the course of welding, the invention is fixedly equipped with the elastic flexible shell fragment presser foot 13 on the sidewall of the welding pen 11, and the shell fragment presser foot 13 stretches, make welding pen 11 before the welding, shell fragment presser foot 13 will treat the shell fragment periphery of welding position with compressing tightly fixedly, improve the fastness of shell fragment welded on the circuit board to and improve the shell fragment welded accurate nature on the circuit board.
The welding pen 11 comprises a rack base 1113 arranged at the bottom end of the push rod 10 and a welding pen shell 1114 fixed on the side wall of the rack base 1113, a welding wire winding frame 1101 is fixedly installed at the top end of the rack base 1113, a welding wire 1102 is wound on the welding wire winding frame 1101, a wire inlet hole 1109 is formed in the top end of the welding pen shell 1114, a through hot melting cavity 1110 is formed below the wire inlet hole 1109, and a position-giving opening is formed in the middle of the hot melting cavity 1110; the position-giving opening is positioned at the position where the impeller blade 1108 extends into the hot melting cavity, and the impeller blade 1108 extending into the hot melting cavity is sealed with the inner wall of the hot melting cavity, so that the liquid of the welding wire after hot melting is kept in the hot melting cavity,
an impeller shell 1105 is fixedly installed on the side wall of a welding pen shell 1114, an impeller cavity 1106 is formed in the impeller shell 1105, a cylindrical impeller 1107 is installed in the impeller cavity 1106 through a bearing, the outer circular surface of the impeller 1107 is close to an abdicating port of a hot melting cavity 1110, impeller blades 1108 are arranged on the outer wall of the impeller 1107 at equal intervals, the impeller blades 1108 pass through the abdicating port and extend into the hot melting cavity 1110,
a motor 1103 is fixedly mounted at the top end of the stand base 1113, the motor 1103 of the present invention is a servo motor with a simple rotation, one end of the impeller 1107 protrudes outside through the impeller housing 1105 via a bearing, one end of the impeller 1107 protruding outside the impeller housing 1105 is mounted with a pulley, one end of the wire spool 1101 is mounted with a pulley via a bearing, and the motor 1103 drives the impeller 1107 to rotate synchronously with the wire spool 1101 via a transmission belt 1104.
Wherein, it is rotatory to drive impeller 1107 through motor 1103, stretch into one of them impeller 1108 of impeller 1107 outer wall in the hot melt chamber with the inner wall seal in hot melt chamber, the top of impeller 1108 is seted up has the inclined plane, put the impeller 1108 of remaining liquid in the rotatory process downwards, liquid is from the top of impeller 1108 landing downwards, liquid drops downwards from the hot melt intracavity, drop on the shell fragment of below circuit board, after the welding is accomplished, through a servo motor 8's drive, welding pen 11 moves the top to next shell fragment, motor 1103 drives impeller 1107 and rotates, another impeller 1108 stretches into in the hot melt intracavity and seals with the inner wall in hot melt chamber, liquid after the hot melt of welding wire top is put and is left in the hot melt chamber.
In the invention, the impeller 1107 and the wire welding reel 1101 are intermittently driven by the motor 1103 and the like to synchronously and intermittently rotate, the welding pen 11 intermittently stops above each spring plate by matching with the intermittent movement of the slider 4, and in the process of stopping above each spring plate by the intermittent rotation of the impeller 1107 and the wire welding reel 1101, the liquid melted by the welding wire is thrown onto the welding sheet of the circuit board to weld and fix the welding sheet on the circuit board, so that the welding efficiency of the spring plates is improved.
Wherein, the welding pen 11 of the invention is internally provided with a wire inlet 1109 and a hot melting cavity 1110, the wire inlet 1109 is arranged above the hot melting cavity 1110, the hot melting cavity 1110 is communicated downwards, the top end of a welding wire 1102 extends into the wire inlet 1109, an impeller 1107 and the welding wire reel 1101 are intermittently driven by a motor 1103 and the like to synchronously and simply rotate, the welding wire reel 1101 and the like intermittently rotate, the welding wire 1102 is replayed at equal intervals, the welding wire 1102 intermittently moves in the wire inlet 1109 at equal intervals, the top end of the welding wire 1102 moves to the hot melting cavity 1110 at equal intervals, the welding wire 1102 moving into the hot melting cavity 1110 is heated by a thread to be changed into liquid, the liquid falls onto an impeller 1108 at the lower part, the melted liquid falls downwards from the impeller 1108 by the intermittent rotation of the motor 1103 and the like, the temperature in the hot melting cavity is high, the melted liquid of the welding wire 1102 cannot be solidified, and falls onto an elastic sheet below the welding pen 11 through the communicated hot melting cavity 1110, and welding and fixing the elastic sheet and the circuit board.
The outside fixed mounting of welding pen 11 has power supply box 1111, and the inside fixed mounting of welding pen 11 has screw thread to heat pipe 1112, and hot melt chamber 1110 is seted up in the middle part of screw thread heating pipe 1112, heats pipe 1112 through the spiral and makes whole hot melt chamber 1110 be full of high temperature, makes the molten liquid of welding wire be in the molten state in the hot melt intracavity all the time.
The top end of the impeller 1108 extending into the hot melting cavity 1110 is provided with an inclined plane, so that the liquid left with the welding wire melted slides down from the hot melting cavity 1110 in the process that the impeller 1108 rotates downwards,
the impeller blades 1108 are made of high-temperature-resistant metal, and the welding wire is made of soft metallic tin wire.
The cushion column 29 comprises an air passage joint 28, a gasket base 2902, a second bearing groove 2904, air bags 2905, air passages 2906 and vent holes 2907, the air passage joint 28 is arranged at the top end of the cushion column 29 fixed on the supporting rack 27, a plurality of gasket bases 2902 are arranged on the outer wall of the cushion column 29 at equal intervals, circular vent holes 2907 are formed in the cushion column 29, the air passages 2906 communicated with the vent holes 2907 are formed in the outer circular surface of each gasket base 2902 at equal intervals, the air bags 2905 are fixedly arranged on the outer circular surface of each gasket base 2902, and the second bearing grooves 2904 matched with the two sides of the elastic sheet are formed in the middle of the outer circular surface of each air bag 2905.
Wherein, the middle part of the side supporting rib plate 2 is provided with a run-through abdicating hole 14, the bottom of the abdicating hole 14 is provided with a rotatable supporting wheel 30, the rotatable supporting wheel 30 enables the cushion post 29 to axially extend and retract in the abdicating hole 14, so that the cushion post 29 extends into the bottom of the elastic sheet, and after the welding is completed, the cushion post 29 is convenient to be drawn out from the bottom of the elastic sheet, thereby improving the operation simplicity of the elastic sheet, the invention is provided with an air passage 2906 connector 28 at the top end of the cushion post 29, the air passage 2906 connector 28 is communicated with an external air source, air flow is guided into the air bag 2905 of each cushion base 2902 through an internal vent 2907 to expand and prop up the air bag 2905, the cushion post 29 extends into the bottom of the elastic sheet, after the air bag 2905 props up, the elastic sheet is propped up through a second supporting groove 2904 on the outer circular surface of the air bag 2905, the air bag 2905 props, be convenient for control airbag 2905's volume size, be favorable to airbag 2905 to carry out the adaptability according to the crooked radian of shell fragment and adjust, make the shell fragment place steadily on the circuit board through airbag 2905, improve the welded position accurate.
Two side walls of the air bag 2905 are symmetrically provided with folds 2903, the folds 2903 are stretched and contracted, so that the second supporting groove 2904 on the outer circular surface of the air bag 2905 can be conveniently stretched vertically, and the structural stability of the air bag 2905 when the outer circular surface is expanded is improved
The excircle face of supporting wheel 30 is provided with bellied bearing tooth 31 equidistantly, and the top of each bearing tooth 31 is seted up with the outer wall complex circular arc groove of cushion post 29, and bearing tooth 31 carries out the block with the draw-in groove on the excircle face of cushion post 29, avoids cushion post 29 to produce when stepping down in the hole 14 flexible and supporting wheel 30 between slide, improves the stationarity when cushion post 29 stretches out and draws back.
The working principle of the elastic sheet welding machine is as follows: when the elastic sheet welding machine is used, firstly, a circuit board is placed in a positioning groove 15 at the top end of a bottom supporting plate 1 and is pressed and fixed through pressing feet 18 at two sides of the positioning groove 15, when the elastic sheet is placed on the circuit board, the elastic sheet is bent and is easy to tilt in the welding process of being placed on the circuit board, a through abdicating hole 14 is formed in the middle of a side supporting rib plate 2, a telescopic cushion post 29 is arranged in the abdicating hole 14 and extends into the bent bottom of the elastic sheet through the cushion post 29 to support the elastic sheet, so that the elastic sheet is stressed uniformly in the welding process, the welding position is accurate, firm and reliable, and in the welding process, an elastically telescopic pressing foot 13 is fixedly arranged on the side wall of a welding pen 11, the elastic sheet pressing foot 13 extends towards the bottom end of the welding pen 11, so that the elastic sheet pressing foot 13 firstly presses and fixes the periphery of the elastic sheet at the part to be welded before the welding, the fastness of shell fragment welding on the circuit board is improved, through welding pen 11 downstream, drops the liquid that the welding wire melts on the shell fragment, solidifies on the circuit arc through the welding wire, melts the welding wire and fixes.
In addition, the working principle of the welding pen 11 and the pad post 29 of the present invention is as follows:
a wire inlet 1109 and a hot melting cavity 1110 are arranged in a welding pen 11, the wire inlet 1109 is arranged above the hot melting cavity 1110, the hot melting cavity 1110 penetrates downwards, the top end of a welding wire 1102 extends into the wire inlet 1109, an impeller 1107 and the welding wire winding rack 1101 are intermittently driven by a motor 1103 and the like to synchronously and simply rotate, the welding wire winding rack 1101 rotates intermittently, the welding wire 1102 is equidistantly played back, the welding wire 1102 intermittently moves in the wire inlet 1109, the top end of the welding wire 1102 moves equidistantly in the hot melting cavity 1110, the welding wire 1102 moved into the hot melting cavity 1110 is melted into liquid through a thread heating pipe, the liquid falls onto an impeller 1108 below through a threaded heating pipe, the melted liquid falls downwards from the impeller 1108 through the intermittent rotation of the motor 1103 and the like, the melted liquid cannot be solidified due to the high temperature in the hot melting cavity 1110, and the penetrated hot melting cavity 1110 falls downwards onto a spring under the welding pen 11, and welding and fixing the elastic sheet and the circuit board.
The middle part of the lateral support rib plate 2 is provided with a through abdicating hole 14, the bottom of the abdicating hole 14 is provided with a rotatable support wheel 30, the rotatable support wheel 30 enables the cushion post 29 to axially extend and retract in the abdicating hole 14, so that the cushion post 29 can conveniently extend into the bottom of the elastic sheet, and after welding is completed, the cushion post 29 can be conveniently drawn out from the bottom of the elastic sheet, so that the operation simplicity of the elastic sheet is improved, the invention is provided with an air passage 2906 connector 28 at the top end of the cushion post 29, the air passage 2906 connector 28 is communicated with an external air source, air flow is guided into an air bag 2905 of each gasket base 2902 through an internal vent 2907 to expand and support the air bag 2905, the cushion post 29 extends into the bottom of the elastic sheet, after the air bag 2905 is supported, the elastic sheet is supported through a second support groove 2904 on the outer circular surface of the air bag 2905, the air bag 2905 controls the supported volume through air, so that the control on the volume of, the air bag 2905 can be adjusted adaptively according to the bending radian of the elastic sheet, so that the elastic sheet can be stably placed on the circuit board through the air bag 2905, and the welding position accuracy is improved.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. The utility model provides an elastic sheet welding machine, this elastic sheet welding machine includes the end support board, its characterized in that: the top end of the bottom support plate is provided with a side support rib plate vertically fixed to the top end of the bottom support plate, the top end of the side support rib plate is provided with a top support rib plate horizontally fixed, the top end of the top support rib plate is provided with a through sliding hole, a sliding block is installed in the sliding hole of the top support rib plate in a sliding fit mode, the middle of the sliding block is provided with a through nut sleeve, the top end of the top support rib plate is fixedly provided with a threaded lead screw, the nut sleeve is fixedly installed on the threaded lead screw in a threaded fit mode, one end of the threaded lead screw is fixedly provided with a gear, the top end of the top support rib plate is fixedly provided with a servo motor close to the gear, and the servo motor drives the threaded lead screw to rotate through the gear;
a linear push rod motor is fixedly installed at the top end of the sliding block, a push rod extends downwards from the linear push rod motor, a welding pen is fixed at the bottom end of the push rod, and the welding pen is erected at the top end of the bottom supporting plate;
the middle part of the top end of the bottom support plate is provided with a positioning groove with a U-shaped structure, the circuit board is placed in the positioning groove at the top end of the bottom support plate, the two sides of the positioning groove are symmetrically provided with abdicating grooves, the bottom end of each abdicating groove is provided with threaded holes at equal intervals, each threaded hole of each abdicating groove is connected with a threaded rod through a thread, the top end of each threaded rod is fixedly provided with a pressing foot base, the middle part of the top end of each pressing foot base is hinged with a pressing foot, and the pressing foot presses the circuit board when the top end of each pressing foot base;
the middle part of the side supporting ribbed plate is provided with a run-through abdicating hole, the bottom end of the abdicating hole is hinged with a supporting wheel, a straight rod-shaped pad post is arranged in the abdication hole, one end of the pad post extends into the bottom of the elastic sheet arranged at the top end of the circuit board, the other end of the cushion column is fixed on the supporting frame, the bottom end of the supporting frame is provided with a second sliding block, the rear side of the side supporting ribbed plate is provided with a chute base, the top end of the chute base is provided with a chute, a second threaded screw rod is fixedly arranged in the chute, one end of the second threaded screw rod is fixedly connected with an output shaft of a second servo motor, the servo motor is fixed in a motor groove, the motor groove is arranged at the rear side of the side supporting rib plate, the second sliding block is embedded into the sliding groove in a sliding fit mode, and the second sliding block embedded into the sliding groove is installed on the second threaded screw rod in a threaded fit mode;
the side wall of the welding pen is fixedly provided with a pressure spring, the bottom end of the pressure spring is fixedly provided with a square block-shaped elastic sheet pressure foot, the bottom end face of the elastic sheet pressure plate is parallel to the top face of the elastic sheet, and the elastic sheet pressure plate extends out of the bottom end of the welding pen.
2. A shrapnel welding machine according to claim 1, characterized in that: the welding pen comprises a rack base arranged at the bottom end of the push rod and a welding pen shell fixed on the side wall of the rack base, wherein a welding wire reel is fixedly installed at the top end of the rack base, a welding wire is wound on the welding wire reel, a wire inlet hole is formed in the top end of the welding pen shell, a through hot melting cavity is formed below the wire inlet hole, and a position yielding port is formed in the middle of the hot melting cavity;
an impeller shell is fixedly installed on the side wall of the welding pen shell, an impeller cavity is formed in the impeller shell, a cylindrical impeller is installed in the impeller cavity through a bearing, the outer circular surface of the impeller is close to a yielding port of the hot melting cavity, impeller blades are arranged on the outer wall of the impeller at equal intervals, and the impeller blades penetrate through the yielding port and extend into the hot melting cavity;
the wire welding machine is characterized in that a motor is fixedly mounted at the top end of the rack base, one end of the impeller extends out of the impeller shell through a bearing, a belt wheel is mounted at one end of the impeller extending out of the impeller shell, the belt wheel is mounted at one end of the wire welding reel through a bearing, and the motor drives the impeller and the wire welding reel to synchronously rotate through a transmission belt.
3. A shrapnel welding machine according to claim 2, characterized in that: the outside fixed mounting of welding pen has the power supply box, the inside fixed mounting of welding pen has the screw thread heating pipe, the middle part in screw thread heating pipe is seted up in the hot melt chamber.
4. A shrapnel welding machine according to claim 2, characterized in that: the top end of the impeller blade extending into the hot melting cavity is provided with an inclined plane.
5. A shrapnel welding machine according to claim 1, characterized in that: the cushion column comprises an air passage joint, a gasket base, a second supporting groove, an air bag, an air passage and air holes, the cushion column is fixed on the supporting rack, the top end of the cushion column is provided with the air passage joint, the outer wall of the cushion column is equidistantly provided with a plurality of gasket bases, the inside of the cushion column is provided with the air holes in a round hole shape, each air passage communicated with the air holes is equidistantly arranged on the outer circular surface of the gasket base, the air bag is fixedly installed on the outer circular surface of the gasket base, and the second supporting groove matched with two sides of an elastic sheet is arranged in the middle of the outer circular surface of the air bag.
6. A shrapnel welding machine according to claim 5, characterized in that: the two side walls of the air bag are symmetrically provided with folds.
7. A shrapnel welding machine according to claim 2, characterized in that: the outer disc of supporting wheel is equidistant to be provided with bellied bearing tooth, each the arc groove with the cushion post outer wall complex is seted up on the top of bearing tooth.
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| CN202010590140.4A CN111687512B (en) | 2020-06-24 | 2020-06-24 | Elastic piece welding machine |
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| CN202010590140.4A CN111687512B (en) | 2020-06-24 | 2020-06-24 | Elastic piece welding machine |
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| CN112165792A (en) * | 2020-11-02 | 2021-01-01 | 梅皓琦 | Circuit board elastic sheet welding equipment |
| CN112743186A (en) * | 2021-01-29 | 2021-05-04 | 龙南县方成科技有限公司 | High-precision tin soldering machine |
| CN112954996A (en) * | 2021-02-01 | 2021-06-11 | 梅皓琦 | Special-shaped elastic sheet mounting equipment and mounting process for intelligent circuit control board |
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