CN115889998A - Handheld welding equipment and use method thereof - Google Patents
Handheld welding equipment and use method thereof Download PDFInfo
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- CN115889998A CN115889998A CN202310215959.6A CN202310215959A CN115889998A CN 115889998 A CN115889998 A CN 115889998A CN 202310215959 A CN202310215959 A CN 202310215959A CN 115889998 A CN115889998 A CN 115889998A
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Abstract
The invention provides a handheld welding device and a using method thereof, belonging to the technical field of welding devices, wherein the handheld welding device is formed by connecting a welding gun main body, an infrared reflection induction sensor, a metal induction proximity switch sensor and an upper control system: according to the invention, the handle part is held by a hand and is shielded by the infrared reflection induction sensor, then the infrared reflection induction signal is obtained, during welding, the handle part is aligned to the welding to-be-processed welding or workpiece, the metal induction proximity switch sensor senses that the normally closed signal is obtained after the welding to-be-processed or workpiece is processed, the gun body switch is pressed to be started, the upper control system simultaneously obtains the infrared reflection induction signal, the normally closed signal and a starting instruction, the welding gun body can be started, then, the welding part is effectively prevented from being accidentally injured, other workpieces and operators are effectively avoided, the welding gun body can be started by adopting the triple insurance method, the three parts are all out of the three parts, and then, the safety performance of the welding gun is greatly improved.
Description
Technical Field
The invention belongs to the technical field of welding equipment, and particularly relates to handheld welding equipment and a using method thereof.
Background
The laser welding is one of the important aspects of the application of laser material processing technology, belongs to the fusion welding, uses the laser beam as the energy source, impacts on a weldment joint, is guided by a planar optical element, then uses a reflection focusing element or a lens to project the light beam on a welding seam, and carries out the joining process on the welding seam.
The grant publication number 'CN 113953666B' discloses 'a hand-held laser welding gun, which comprises a gun head and a holding part, wherein the gun head is connected with the holding part, a laser passage is formed in the gun head and the holding part together, a first condenser lens, a refractor and a second condenser lens are sequentially arranged in the laser passage, a laser emitting head is arranged at one end, far away from the gun head, of the holding part, laser emitted by the laser emitting head sequentially passes through the first condenser lens, the refractor and the second condenser lens to be emitted out of the gun head, and the laser emitting head is connected with the holding part through a quick connection structure'.
Above-mentioned patent can insert the laser emission head fast, compares in traditional optic fibre QBH and connects, has to insert effects such as convenient, dustproof, and the disclosed regulation structure of this hand-held type laser welding rifle can be through the width of adjusting the control laser beam of refractor to adapt to the welding seam of different width, application scope is wider.
However, the safety of the above mentioned patents is low, and during the operation process, the operator is very easy to operate by mistake, and then the laser is emitted to other workpieces or other objects, and finally the damage or other reasons cause the personnel to be injured by the laser by mistake, so the laser using safety of the above mentioned hand-held laser welding gun is low.
Disclosure of Invention
The invention aims to provide handheld welding equipment and a using method thereof, and aims to solve the technical problem of low safety performance in the prior art.
In order to achieve the purpose, the invention provides the following technical scheme:
a handheld welding device, comprising:
a welding gun body composed of a handle part and a laser welding part;
the metal induction proximity switch sensor is in a normally open state, is arranged on the laser welding part and is used for sensing the welding or the workpiece to be processed to obtain a normally closed signal;
the infrared reflection induction sensor is arranged on the handle part and is used for acquiring infrared reflection induction signals;
the upper control system is arranged in the welding gun main body, is electrically connected with the welding gun main body, is also electrically connected with the metal induction proximity switch sensor and the infrared reflection induction sensor, and is used for receiving the normally closed signal and the infrared reflection induction signal; and
the rifle body switch is located on the handle portion and be located infrared reflection inductive sensor upside, it with the upper control system electricity is connected, wherein:
when upper control system receives simultaneously normally closed signal and infrared reflection sensing signal back, press the rifle body switch starts, upper control system control the welding rifle main part starts, prevents the maloperation then. The invention aims to solve the technical problem of low safety performance in the prior art.
As a preferred aspect of the present invention, the metal inductive proximity switch sensor is detachably and adjustably mounted on the laser welding portion by adjusting a mounting mechanism, which facilitates rapid assembly of the metal inductive proximity switch sensor, and which also adjusts a distance between the metal inductive proximity switch sensors to adjust a sensing range of the metal inductive proximity switch sensor.
A method of using a handheld welding device, comprising the steps of:
s1, assembling a protective cover: the method comprises the following steps of enabling round hole sites to penetrate through a laser welding part and push inwards, adjusting the angle of a protective cover, enabling a plurality of rectangular hole sites to penetrate through a plurality of U-shaped fixture blocks respectively until the protective cover is in contact with a handle part, sequentially assembling a plurality of mounting lugs, after assembly is completed, enabling the U-shaped fixture blocks to be located on the outer side of the protective cover, and enabling a driving gear and a driven gear to be located in a gap between the protective cover and the handle part;
s2, assembling a rotary connecting assembly: the semicircular connecting block on the upset, make it closed with semicircular connecting block down, locate last semicircular connecting block and semicircular connecting block cover down on T type cyclic annular rotating block, and make a plurality of rectangle bayonet sockets block respectively between a plurality of U type fixture block both sides inner wall, then accomplish the block, last semicircular connecting block and semicircular connecting block all are located the protective cover outside this moment, after closing first semicircular connecting block and semicircular connecting block down, two L type fixture blocks block in two rectangle draw-in grooves respectively, pass a plurality of connecting holes with the screw rod in proper order, sheathe gasket in, assembly nut then, finally, accomplish the assembly of rotation coupling assembling component;
s3, assembling a wire conveying mechanism: the silk conveying mechanism penetrates through the internal thread hole, the silk conveying mechanism is rotated appropriately based on the length of the silk conveying mechanism, and the silk conveying mechanism is adjusted to a proper position based on the thread fit between the second external thread and the internal thread hole;
s4, fine adjustment of longitudinal angle: starting the electric telescopic rod based on the telescopic rod switch and shortening the extension end of the electric telescopic rod, wherein the arc-shaped positioning rack is not meshed with the positioning gear at the moment, then rotating the rotating shaft to realize the longitudinal angle adjustment of the wire conveying mechanism, after the head part of the electric telescopic rod is adjusted to be at a proper distance from the head part of the handle part, starting the electric telescopic rod based on the telescopic rod switch and extending the extension end of the electric telescopic rod, and then meshing the arc-shaped positioning rack with the positioning gear again to ensure that the rotating shaft cannot rotate to finish the longitudinal angle fine adjustment;
s5, assembling a metal induction proximity switch sensor: the metal induction proximity switch sensor is inserted into the two groups of bearing parts from top to bottom, the outer wall of the metal induction proximity switch sensor extrudes the upper section of the ladder-shaped extrusion block, the upper section of the ladder-shaped extrusion block is of a downward sunken arc-shaped structure, and meanwhile, the ladder-shaped extrusion block moves outwards based on the sliding fit between the limiting slide rod and the slide hole, the spring is gradually changed from an original state to a stretching state, and after the metal induction proximity switch sensor is attached to the arc-shaped concave surface at the bottom of the bearing parts, the clamping ball is clamped with the spherical clamping groove under the elastic action of the spring;
s6, assembling, adjusting and installing the mechanism: the method comprises the steps that an internal thread connecting sleeve penetrates through a laser welding part and is pushed inwards, then the internal thread connecting sleeve is rotated, a second internal thread connecting cavity is in threaded fit with a first external thread, a mounting sleeve and an external thread connecting sleeve penetrate through the laser welding part and are pushed inwards, based on the sensing range of a metal sensing proximity switch sensor, the mounting sleeve and the external thread connecting sleeve are slid to proper positions to be matched with the metal sensing proximity switch sensors in different sensing ranges, the metal sensing proximity switch sensor is held to be fixed, then the internal thread connecting sleeve is rotated, the first internal thread connecting cavity is in threaded fit with the external thread connecting sleeve, one side of the internal thread connecting sleeve is in threaded fit with the first external thread, the other side of the internal thread connecting sleeve is in threaded fit with the external thread connecting sleeve, and finally the assembly of a mounting mechanism is adjusted to be matched with the metal sensing proximity switch sensors in different sensing ranges;
s7, starting: the handle part is held by a hand and is shielded by the infrared reflection induction sensor, then an infrared reflection induction signal is obtained, during welding, the handle part is aligned to the welding to-be-processed welding or workpiece, the metal induction proximity switch sensor senses the to-be-processed welding or workpiece and then obtains a normally closed signal, the gun body switch is pressed to be started, the upper control system simultaneously obtains the infrared reflection induction signal, the normally closed signal and a starting instruction, then the welding gun body can be started, and then the welding piece, other workpieces and an operator are effectively prevented from being accidentally injured;
s8, welding: the welding process is realized based on the mutual matching of the welding gun main body and the wire conveying mechanism;
s9, axial angle adjustment: when the corresponding metal wires are required to be conveyed to different angles, and then the different angles of the laser welding part welding workpiece are matched, the stepping motor is started through a motor switch, the output end of the stepping motor rotates to drive the driving gear to rotate, based on the meshing performance between the driving gear and the driven gear, the T-shaped annular rotating block is rotated, based on the clamping fit between the plurality of U-shaped clamping blocks and the plurality of rectangular bayonets, the upper semicircular connecting block and the lower semicircular connecting block are rotated, finally, the axial angle adjustment of the wire conveying mechanism is realized to convey the corresponding metal wires to different angles, and then the different angles of the laser welding part welding workpiece are matched;
s10, correcting the welding speed: adjusting material welding parameter and speed threshold value parameter based on the display screen button, acquire the acceleration through acceleration sensing module during the welding, calculate actual welding speed through speed algorithm procedure then, upper control system compares actual welding speed and speed threshold value parameter, if both errors are great, then control the alarm lamp and light in order to realize reporting to the police, then remind the operator to correct welding speed, simultaneously actual welding speed can show on the display screen.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the handle part is held by a hand and is shielded by the infrared reflection induction sensor, then the infrared reflection induction signal is obtained, during welding, the handle part is aligned to the welding or the workpiece to be processed, the metal induction proximity switch sensor senses the normally closed signal obtained after the welding or the workpiece to be processed, the gun body switch is pressed to be started, the upper control system simultaneously obtains the infrared reflection induction signal, the normally closed signal and a starting instruction, the welding gun body can be started, then the welding piece is effectively prevented from being accidentally injured, other workpieces and operators are effectively prevented from being mistakenly damaged, the welding gun body can be started by adopting the triple insurance method, the three parts are absent and cannot be used, even if the welding gun is not used correctly, the welding gun cannot be started by misoperation of other people, and then the safety performance of the welding gun is greatly improved.
According to the invention, the distance is adjusted to adapt to metal induction proximity switch sensors with different sensing ranges, the internal thread connecting sleeve penetrates through the laser welding part and is pushed inwards, then the internal thread connecting sleeve is rotated, the second internal thread connecting cavity is in threaded fit with the first external thread, the mounting sleeve and the external thread connecting sleeve penetrate through the laser welding part and are pushed inwards, based on the sensing range of the metal induction proximity switch sensor, the mounting sleeve and the external thread connecting sleeve are slid to proper positions to adapt to the metal induction proximity switch sensors with different sensing ranges, the metal induction proximity switch sensor is held to be immobile, then the internal thread connecting sleeve is rotated, the first internal thread connecting cavity is in threaded fit with the external thread connecting sleeve, one side of the internal thread connecting sleeve is in threaded fit with the first external thread, the other side of the internal thread connecting sleeve is in threaded fit with the external thread connecting sleeve, and finally the assembly of the mounting mechanism is adjusted to adapt to the metal induction proximity switch sensors with different sensing ranges.
The invention is convenient to rapidly realize the assembly of the metal induction proximity switch sensor, the metal induction proximity switch sensor is inserted onto two groups of bearing parts from top to bottom, the outer wall of the metal induction proximity switch sensor extrudes the upper section of the ladder-shaped extrusion block, and the upper section of the metal induction proximity switch sensor is of a downward sunken arc-shaped structure, and simultaneously, the ladder-shaped extrusion block moves outwards based on the sliding fit between the limiting slide rod and the slide hole, at the moment, the spring is gradually changed from the original state to the stretching state, and after the metal induction proximity switch sensor is attached to the arc-shaped concave surface at the bottom of the bearing part, the clamping ball is clamped with the spherical clamping groove under the elastic action of the spring.
The invention is convenient to realize the assembly of the rotary connecting component, the upper semicircular connecting block is turned over to be closed with the lower semicircular connecting block, the upper semicircular connecting block and the lower semicircular connecting block are sleeved on the T-shaped annular rotating block, the plurality of rectangular bayonets are respectively clamped between the inner walls of the two sides of the plurality of U-shaped clamping blocks to complete the clamping, at the moment, the upper semicircular connecting block and the lower semicircular connecting block are positioned on the outer side of the protective cover, after the upper semicircular connecting block and the lower semicircular connecting block are closed, the two L-shaped clamping blocks are respectively clamped in the two rectangular clamping grooves, a screw rod sequentially passes through the plurality of connecting holes, a gasket is sleeved on the connecting holes, a nut is assembled, and finally the assembly of the rotary connecting component is completed.
The invention can effectively ensure the conveying accuracy of the corresponding metal wire, the conveying head part of the wire conveying mechanism is adjusted to have a proper distance with the head part of the laser welding part so as to ensure the conveying accuracy, the L-shaped connecting block can rotate along with the rotating shaft to realize fine adjustment of the longitudinal angle due to the rotation of the rotating shaft, and finally the wire conveying mechanism is adjusted to a proper position.
The invention is convenient for realizing the positioning of the fine adjustment of the longitudinal angle of the wire conveying mechanism, the electric telescopic rod is started based on the telescopic rod switch and the extension end of the electric telescopic rod is shortened, at the moment, the arc-shaped positioning rack is not meshed with the positioning gear any more, then the rotating shaft is rotated to realize the adjustment of the longitudinal angle of the wire conveying mechanism, after the head of the electric telescopic rod is adjusted to be in a proper distance with the head of the handle part, the electric telescopic rod is started based on the telescopic rod switch and the extension end of the electric telescopic rod is extended, the arc-shaped positioning rack is meshed with the positioning gear again, then the rotating shaft cannot rotate, and the fine adjustment of the longitudinal angle is completed.
The invention is convenient for welding different angles of workpieces, the stepping motor is started through the motor switch, the output end of the stepping motor rotates to drive the driving gear to rotate, the T-shaped annular rotating block rotates based on the meshing performance between the driving gear and the driven gear, the upper semicircular connecting block and the lower semicircular connecting block rotate based on the clamping fit between the plurality of U-shaped clamping blocks and the plurality of rectangular bayonets, and finally the axial angle adjustment of the wire conveying mechanism is realized to convey corresponding metal wires to different angles, so that the different angles of the workpieces are welded by matching with the laser welding part.
The protection cover is convenient to install and disassemble, the circular hole sites penetrate through the laser welding part and are pushed inwards, the angle of the protection cover is adjusted, then the plurality of rectangular hole sites respectively penetrate through the plurality of U-shaped fixture blocks until the protection cover is contacted with the handle part, the plurality of installation lugs are sequentially assembled, after the assembly is finished, the U-shaped fixture blocks are positioned on the outer side of the protection cover, and the driving gear and the driven gear are both positioned in a gap between the protection cover and the handle part.
The acceleration sensing module adopts a gyro accelerometer MPU6050, and reads data measured by the MPU6050 through a processor in the acceleration sensing module to obtain acceleration which is key data of the welding speed of the handheld welding head equipment, because the whole process from the time when an operator holds a welding head to start welding is from the time when the operator accelerates to a constant speed, please refer to 27.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a first perspective view of a hand-held welding device of the present invention;
FIG. 2 is an exploded view from a first perspective of a hand held welding device of the present invention;
FIG. 3 is a second perspective view of a hand held welding device of the present invention;
FIG. 4 is a perspective view of a handheld welding apparatus of the present invention with an adjustment mechanism;
FIG. 5 is an exploded view of the handheld welding apparatus of the present invention at the adjustment mounting mechanism;
FIG. 6 is an enlarged view of the hand-held welding apparatus of the present invention taken at A in FIG. 5;
FIG. 7 is a perspective view of a rotating mechanism in a handheld welding apparatus of the present invention;
FIG. 8 is an exploded view of a rotating mechanism of a hand held welding apparatus of the present invention;
FIG. 9 is a perspective view of a protective cover of a hand-held welding apparatus according to the present invention;
FIG. 10 is an exploded view of a protective cover of a hand-held welding apparatus according to the present invention;
FIG. 11 is a perspective view of an angle adjustment mechanism of a hand-held welding apparatus of the present invention;
FIG. 12 is an exploded view of an angle adjustment mechanism of a hand-held welding apparatus of the present invention;
FIG. 13 is an enlarged view of the hand held welding apparatus of the present invention at B of FIG. 12;
FIG. 14 is an enlarged view of the hand held welding apparatus of the present invention at C of FIG. 12;
FIG. 15 is a second perspective view of a hand held welding device of the present invention;
FIG. 16 is a third perspective view of a hand-held welding device of the present invention;
FIG. 17 is an enlarged view of the hand held welding apparatus of the present invention taken at D of FIG. 16;
FIG. 18 is a first perspective cutaway view of a handheld welding device of the present invention;
FIG. 19 is an enlarged view of FIG. 18 at E in accordance with the present invention;
FIG. 20 is a second perspective cut-away view of a handheld welding device of the present invention;
FIG. 21 is an enlarged view at F of FIG. 20 of a hand held welding apparatus of the present invention;
FIG. 22 is a third perspective cut-away view of a hand-held welding device of the present invention;
FIG. 23 is an enlarged view of FIG. 22 at G of the hand-held welding apparatus of the present invention;
FIG. 24 is a perspective exploded cross-sectional view of a hand held welding device of the present invention;
FIG. 25 is an enlarged view at H of FIG. 24 of a hand held welding apparatus of the present invention;
FIG. 26 is an exploded view from a second perspective of a hand held welding device in accordance with the present invention;
FIG. 27 is a graphical illustration of the relationship between speed and time in a handheld welding apparatus of the present invention.
In the figure:
1. welding the gun main body; 101. a handle portion; 102. laser welding the part; 103. a first external thread; 104. a mounting cavity; 105. a fastening groove;
2. a display screen; 201. displaying screen keys; 202. buckling;
3. an alarm lamp;
4. a gun body switch;
5. an infrared reflection induction sensor;
6. a motor switch;
7. the telescopic rod is opened and closed;
8. a metal inductive proximity switch sensor; 801. a spherical clamping groove;
9. adjusting the mounting mechanism; 901. installing a sleeve; 902. the external thread is connected with the sleeve; 903. the internal thread is connected with the sleeve; 9031. a first internal threaded connection chamber; 9032. a second internal threaded connection chamber; 904. a bearing part; 905. a slide hole; 906. a limiting slide bar; 907. a limiting block; 908. a ladder-shaped extrusion block; 909. blocking the ball; 9010. a spring; 9011. t-shaped accommodating grooves;
10. a silk conveying mechanism; 1001. a second external thread;
11. a rotating mechanism; 1101. a T-shaped annular turning block; 1102. a U-shaped fixture block; 1103. a movable hole position; 1104. a stepping motor; 1105. a driving gear; 1106. a driven gear;
12. an angle adjusting mechanism; 1201. an upper semicircular connecting block; 1202. a lower semicircular connecting block; 1203. a hinge; 1204. a rectangular bayonet; 1205. a shaft seat; 1206. a rotating shaft; 1207. an L-shaped connecting block; 1208. an internally threaded hole; 1209. an L-shaped fixture block; 1210. a rectangular connecting block; 1211. a rectangular clamping groove; 1212. connecting holes; 1213. a screw; 1214. a nut; 1215. a gasket; 1216. a fixed seat; 1217. an electric telescopic rod; 1218. an arc-shaped positioning rack; 1219. positioning a gear;
13. a protective cover; 1301. circular hole sites; 1302. rectangular hole positions; 1303. mounting ears; 1304. mounting screws;
14. a T-shaped annular groove;
15. a motor groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.
Example 1
Referring to fig. 1-27, the present invention provides the following technical solutions:
referring to fig. 1, a handheld welding device is composed of a welding gun body 1, an infrared reflection sensing sensor 5, a metal sensing proximity switch sensor 8, and an upper control system, which are connected as follows:
referring to fig. 2, the welding gun body 1 is mainly composed of a handle part 101 and a laser welding part 102, and its internal circuit structure set and its mechanical structure are conventional in the art, so they will not be described again;
referring to fig. 1 and 2, the metal inductive proximity switch sensor 8 is in a normally open state, and is sleeved on the laser welding portion 102 to sense a welding or workpiece to be processed to obtain a normally closed signal, in this embodiment, most of the welding or workpiece to be processed is made of a metal material, in this embodiment, the metal inductive proximity switch sensor 8 may be fixedly installed at an end portion of the laser welding portion 102, meanwhile, the model of the metal inductive proximity switch sensor 8 in this embodiment is fixed, and a sensing range of the metal inductive proximity switch sensor is fixed, preferably, the metal inductive proximity switch sensor 8 with a sensing range of 0-15mm is adopted in this embodiment, and an installation position of the metal inductive proximity switch sensor 8 is such that the workpiece to be welded and a sensing probe of the metal inductive proximity switch sensor 8 should be kept within 15mm, when the metal inductive proximity switch sensor 8 senses the welding or workpiece to be processed, that is, the distance between the welding or workpiece to be processed and the metal inductive proximity switch sensor 8 is within 15mm, the metal inductive proximity switch sensor 8 obtains a normally closed signal, and simultaneously, the normally closed signal is synchronously transmitted to the normally closed control system;
referring to fig. 3, the infrared reflective sensor 5 is mounted on a side wall of an end portion of the handle portion 101, and is configured to acquire an infrared reflective sensing signal, specifically, when the handle portion 101 is held by a hand and the infrared reflective sensor 5 is shielded, the infrared reflective sensor 5 acquires an infrared reflective sensing signal, and if the infrared reflective sensor 5 is not shielded by the hand, the infrared reflective sensor 5 does not acquire the infrared reflective sensing signal, so that the setting can avoid misoperation of an operator, and when the welding gun is used, a correct operation mode of the operator should be trained, and if the welding gun is mistakenly held by another person, the welding gun cannot be started, and thus, the safety performance of the welding gun can be effectively improved;
the upper control system is arranged in the welding gun main body 1 and is electrically connected with the welding gun main body, the upper control system is also electrically connected with the metal induction proximity switch sensor 8 and the infrared reflection induction sensor 5, the upper control system is used for receiving a normally closed signal and an infrared reflection induction signal, and what needs to be explained is that: the upper system is a single chip microcomputer chip with an implanted algorithm programming program, can realize other functions such as algorithm identification, intelligent operation and the like, and can be directly and unambiguously obtained by designing the upper control system based on the idea of the invention, so the upper control system is not shown in the drawing and the internal circuit structure of the upper control system is not explained;
referring to fig. 3, the gun switch 4 is mounted on the sidewall of the end of the handle 101 and above the ir-reflective sensor 5, and is electrically connected to the upper control system, wherein:
when the upper control system receives the normally closed signal and the infrared reflection sensing signal at the same time, the gun body switch 4 is pressed to start, and the upper control system controls the welding gun main body 1 to start;
in this embodiment: handle portion 101 is held and make it shelter from infrared reflection inductive sensor 5, then acquire infrared reflection inductive signal, during the welding, aim at handle portion 101 welding and wait to process welding or work piece, metal response proximity switch sensor 8 sensing obtains normally closed signal after waiting to process welding or work piece, press rifle body switch 4 and start, upper control system acquires infrared reflection inductive signal simultaneously, after normally closed signal and the start instruction, welding rifle main part 1 side can start, then effectively avoid accidentally injuring the weldment, other work pieces and operating personnel, the invention adopts above-mentioned triple insurance side can realize that welding rifle main part 1 starts, the three is out of order, if improper use, even under the on-state, this welding rifle of others 'maloperation also can't start, then the security performance of this welding rifle has been promoted by a wide margin.
Example 2
In embodiment 1, because the installation position of the metal inductive proximity switch sensor 8 is relatively fixed, therefore, there is a certain requirement for the sensing range of the metal inductive proximity switch sensor 8, if the installation position is not appropriate, the metal inductive proximity switch sensor 8 cannot sense the welding or the work piece to be processed, and then the normally closed signal cannot be obtained, therefore, the present embodiment further improves the present embodiment, make it adapt to the metal inductive proximity switch sensor 8 with different sensing ranges, that is, the present embodiment is suitable for the metal inductive proximity switch sensors 8 of various specifications and models, make the application range thereof wider, the metal inductive proximity switch sensor 8 can be detachably and adjustably arranged on the laser welding part 102 by adjusting the installation mechanism 9, which is convenient for rapidly assembling the metal inductive proximity switch sensor 8, it can also adjust the interval of the metal inductive proximity switch sensor 8 to adjust the sensing range of the metal inductive proximity switch sensor 8, the adjustment installation mechanism 9 is composed of a sliding component, a thread and a fastening installation component, as follows specifically:
referring to fig. 1, fig. 3, fig. 4 and fig. 5, the sliding assembly is slidably fitted with the laser welding portion 102 to achieve initial adjustment of the distance, specifically, the sliding assembly includes a mounting sleeve 901 and an external thread connecting sleeve 902, the external thread connecting sleeve 902 is fixed at an end of the mounting sleeve 901, an outer diameter of the external thread connecting sleeve 902 is smaller than an inner diameter of the mounting sleeve 901, the inner diameter of the external thread connecting sleeve 902 is the same as the inner diameter of the mounting sleeve 901, the mounting sleeve 901 and the external thread connecting sleeve 902 are both slidably fitted with the laser welding portion 102, since the mounting sleeve 901 and the external thread connecting sleeve 902 slide on the surface of the handle portion 101, the metal inductive proximity switch sensor 8 is assembled on the sliding assembly, which can achieve the distance between the sensing probe of the metal inductive proximity switch sensor 8 and the end of the handle portion 101, and then adapt to the metal inductive proximity switch sensors 8 with different sensing ranges by adjusting the distance, for example: the sensing range of the metal inductive proximity switch sensor 8 is 8mm, so that the mounting sleeve 901 and the external thread connecting sleeve 902 need to be moved to the head of the laser welding part 102, and then the distance between the sensing probe of the metal inductive proximity switch sensor 8 and the sensing probe is reduced; if the sensing range of the metal inductive proximity switch sensor 8 is 20mm, it can be moved inward appropriately, or can be installed at a regular position;
referring to fig. 4, 5, 24 and 25, the threaded connection assembly is in threaded fit with the sliding assembly and the laser welding portion 102 to achieve space fixing, specifically, the threaded connection assembly includes an internal threaded connection sleeve 903, a first internal threaded connection chamber 9031 and a second internal threaded connection chamber 9032, which are thick and thin, are arranged in the internal threaded connection sleeve 903, the caliber of the first internal threaded connection chamber 9031 is larger than the caliber of the second internal threaded connection chamber 9032, the first internal threaded connection chamber 9031 is in threaded fit with the external threaded connection sleeve 902, and the laser welding portion 102 is provided with a first external thread 103 in threaded fit with the second internal threaded connection chamber 9032; in the using process, the internal thread connecting sleeve 903 penetrates through the laser welding part 102 and is pushed inwards, then the internal thread connecting sleeve 903 is rotated, so that the second internal thread connecting cavity 9032 is in threaded fit with the first external thread 103, the mounting sleeve 901 and the external thread connecting sleeve 902 penetrate through the laser welding part 102 and are pushed inwards, based on the sensing range of the metal sensing proximity switch sensor 8, the mounting sleeve 901 and the external thread connecting sleeve 902 are slid to suitable positions to be matched with metal sensing proximity switch sensors 8 in different sensing ranges, the metal sensing proximity switch sensor 8 is held to be fixed, then the internal thread connecting sleeve 903 is rotated, so that the first internal thread connecting cavity 9031 is in threaded fit with the external thread connecting sleeve 902, one side of the internal thread connecting sleeve 903 is in threaded fit with the first external thread 103, the other side of the internal thread connecting sleeve 903 is in threaded fit with the external thread connecting sleeve 902, and finally the assembly of the mounting mechanism 9 is adjusted to be matched with the metal sensing proximity switch sensors 8 in different sensing ranges;
referring to fig. 4, 18, 19, 20 and 21, two sets of fastening and mounting components are symmetrically arranged on the sliding component, the metal inductive proximity switch sensor 8 is detachably arranged on the two sets of fastening and mounting components to realize rapid assembly, specifically, each set of fastening and mounting components includes a support part 904, a limit slide bar 906, a limit block 907, a ladder-shaped extrusion block 908, a clamping ball 909 and a spring 9010, the support part 904 is fixed on the top of the mounting sleeve 901, the support part 904 is provided with an arc concave surface adapted to the metal inductive proximity switch sensor 8, the support part 904 is symmetrically provided with two sliding holes 905, two adjacent side walls of the support part 904 are respectively provided with a T-shaped receiving groove 9011, the T-shaped receiving groove 9011 is communicated with the sliding holes 905, the limit slide bar 906, the limit block 907, the ladder-shaped extrusion block 909 and the clamping ball 909 are symmetrically distributed, the limiting slide bar 906 is in sliding fit with the slide hole 905 and movably penetrates through the T-shaped accommodating groove 9011, the limiting block 907 is fixed at the end part of the limiting slide bar 906 and is positioned outside the bearing part 904, the size of the limiting block 907 is larger than the diameter of the limiting slide bar 906, the ladder-shaped extrusion block 908 is arranged at the other end part of the limiting slide bar 906 and can be accommodated in the T-shaped accommodating groove 9011, the upper section of the ladder-shaped extrusion block 908 is of an arc structure which is sunken downwards, the clamping ball 909 is fixed at the bottom of the outer wall of the ladder-shaped extrusion block 908, two groups of symmetrically-distributed spherical clamping grooves 801 are formed in the metal induction proximity switch sensor 8, two groups of the spherical clamping grooves 801 are symmetrically distributed, each spherical clamping groove 801 is clamped with the clamping ball 909, and the spring 9010 is fixed between the outer wall of the bearing part 904 and the limiting block 907 and is sleeved on the circumferential surface of the limiting slide bar 906;
in the above embodiment, the assembly of the metal inductive proximity switch sensor 8 can be rapidly realized, the metal inductive proximity switch sensor 8 is inserted onto the two sets of supporting parts 904 from top to bottom, the outer wall of the metal inductive proximity switch sensor 8 extrudes the upper section of the ladder-shaped extrusion block 908, and the upper section of the metal inductive proximity switch sensor 8 is of a downward-recessed arc-shaped structure, and meanwhile, the ladder-shaped extrusion block 908 moves outwards due to sliding fit between the limiting sliding rod 906 and the sliding hole 905, and at the moment, the spring 9010 gradually changes from an original state to a stretched state, and after the metal inductive proximity switch sensor 8 is attached to the arc-shaped concave surface at the bottom of the supporting part 904, the clamping ball is clamped with the spherical clamping groove 801 under the elastic action of the spring 9010.
Example 3
Because the corresponding metal wire (for example, tin wire) needs to be used for filling soldering in the soldering process, but the corresponding metal wire cannot be automatically provided in embodiments 1 and 2, and meanwhile, because the soldering position is more than one, the angle of the wire supply also needs to be changed correspondingly, so that the present embodiment is further optimized on the basis of the above, and the present embodiment additionally provides the rotating mechanism 11, the angle adjusting mechanism 12 and the wire conveying mechanism 10 to solve the above technical problems, which are specifically set forth as follows:
referring to fig. 7, 8, 22, 23, 24 and 25, the rotating mechanism 11 is disposed on the handle portion 101, and the rotating mechanism 11 is composed of a rotating assembly and a driving assembly, which are described as follows:
referring to fig. 22, 23, 24 and 25, a T-shaped annular groove 14 and a motor groove 15 are formed at an end of the handle portion 101, the T-shaped annular groove 14 surrounds the laser welding portion 102, and the motor groove 15 is located at a lower side of the T-shaped annular groove 14;
with reference to fig. 7, 8, 22, 23, 24 and 25, the rotating assembly is rotatably disposed on the handle 101, specifically, the rotating assembly includes a T-shaped annular rotating block 1101 and a U-shaped fixture block 1102, the T-shaped annular rotating block 1101 is rotatably engaged with the T-shaped annular groove 14, one side of the T-shaped annular rotating block 1101 extends to the outside of the handle 101, that is, a part of the T-shaped annular rotating block 1101 is rotatably disposed in the T-shaped annular groove 14, the other part of the T-shaped annular rotating block 1101 extends to the outside, a movable hole site 1103 is disposed at an end of the T-shaped annular rotating block 1101, the laser welding portion 102 movably penetrates through the movable hole site 1103, the U-shaped fixture block 1102 is disposed in plural, the plural U-shaped fixture blocks 1102 are uniformly disposed on the surface of the T-shaped annular rotating block 1101 and are disposed outside the T-shaped annular groove 14, and the T-shaped annular rotating block 1101 can freely rotate around the laser welding portion 102 in all directions by the above arrangement;
referring to fig. 7, 8, 22, 23, 24 and 25 again, the driving assembly is disposed on the handle portion 101 and connected to the rotating assembly to rotate the same, specifically, the driving assembly includes a stepping motor 1104, a driving gear 1105 and a driven gear 1106, the stepping motor 1104 is fixed in the motor slot 15, the driving gear 1105 is fixed at the output end of the stepping motor 1104 and located outside the motor slot 15, the driven gear 1106 is fixed on the surface of the U-shaped latch 1102 and located outside the T-shaped annular slot 14, the driven gear 1106 is engaged with the driving gear 1105, the stepping motor 1104 is started, the output end of the stepping motor 1104 rotates to drive the driving gear 1105 to rotate, and based on the engagement performance between the driving gear 1105 and the driven gear 1106, the T-shaped annular rotating block 1101 is further rotated;
referring to fig. 2, the angle adjusting mechanism 12 is detachably disposed on the rotating mechanism 11 to rotate along with the rotating mechanism 11, so as to adjust the angle, and the angle adjusting mechanism 12 is composed of a rotating connection assembly, an angle fine-tuning assembly and a positioning assembly, and is specifically set forth as follows:
referring to fig. 2, 11, 12, 13, 16 and 17, the rotation connection assembly is detachably disposed on and engaged with the rotation assembly, and is engaged with the rotation assembly to achieve axial angle adjustment of the wire feeding mechanism 10, specifically, the rotation connection assembly includes an upper semicircular connection block 1201, a lower semicircular connection block 1202, hinges 1203, two L-shaped blocks 1209, a rectangular connection block 1210, a screw 1213, a nut 1214 and a gasket 1215, where the hinges 1203 are two, the upper semicircular connection block 1201 and one side of the lower semicircular connection block 1202 are movably hinged by two hinges 1203, the two L-shaped blocks 1209 are symmetrically fixed on the other side of the upper semicircular connection block 1201, the rectangular connection block 1210 is fixed on the other side of the lower semicircular connection block 1202, two rectangular slots 1211 are formed on two sides of the top of the rectangular connection block 1210 from top to bottom, when the upper semicircular connection block 1201 and the lower semicircular connection block 1202 are closed, the two L-shaped blocks 1209 are respectively engaged in the two rectangular slots 1211, the ends of the rectangular connection block 1210 and the two L-shaped blocks 1209 are respectively provided with connection holes 1212, 1213, the screw is movably sleeved on the screw connection block 1212, the screw 1210 and the one side of the nut 1213, and the gasket 1213, where the nut 1213 is engaged with the gasket 1214: after the upper semicircular connecting block 1201 and the lower semicircular connecting block 1202 are closed, a plurality of rectangular bayonets 1204 clamped with the U-shaped fixture block 1102 are formed in the inner walls of the upper semicircular connecting block 1201 and the lower semicircular connecting block 1202, and the upper semicircular connecting block 1201 and the lower semicircular connecting block 1202 are located between the inner walls of the two sides of the U-shaped fixture block 1102 to achieve limiting;
in this embodiment: the upper semicircular connecting block 1201 is movably hinged to the lower semicircular connecting block 1202 through two hinges 1203, so that opening, closing and closing can be achieved through a turnover mode between the upper semicircular connecting block 1201 and the lower semicircular connecting block 1202, after the upper semicircular connecting block 1201 is turned over to achieve closing of the upper semicircular connecting block and the lower semicircular connecting block 1202, the two L-shaped clamping blocks 1209 and the two rectangular clamping grooves 1211 are clamped, then the screw 1213 sequentially penetrates through the connecting holes 1212, the gasket 1215 is sleeved, then the nut 1214 is assembled, through the assembly, the upper semicircular connecting block 1201 and the lower semicircular connecting block 1202 can rotate along with the T-shaped rotating block 1101, and what needs to be described is: the U-shaped clamping block 1102 is mutually clamped with the rectangular clamping opening 1204, and the upper semicircular connecting block 1201 and the lower semicircular connecting block 1202 are limited at the same time, so that the upper semicircular connecting block and the lower semicircular connecting block cannot be separated from the T-shaped annular rotating block 1101, and the double-function structure has double functions, is convenient and quick to assemble, ingenious in structure and convenient to disassemble;
referring to fig. 2, 11 and 12, the angle fine-tuning assembly is disposed on the rotating connection assembly, the wire conveying mechanism 10 is disposed on the angle fine-tuning assembly, and is configured to achieve longitudinal angle adjustment of the wire conveying mechanism 10, specifically, the angle fine-tuning assembly includes two shaft seats 1205, a rotating shaft 1206 and an L-shaped connection block 1207, the two shaft seats 1205 are symmetrically fixed to the bottom of the lower semicircular connection block 1202, the rotating shaft 1206 is rotatably disposed between the two shaft seats 1205, one end of the rotating shaft 1206 rotatably penetrates through one of the shaft seats 1205 and extends outward, the L-shaped connection block 1207 is fixed to the rotating shaft 1206, an internal threaded hole 1208 is formed in the L-shaped connection block 1207, a second external thread 1001 is formed on the wire conveying mechanism 10, the second external thread 1001 is in threaded fit with the internal threaded hole, in order to ensure conveying accuracy of a corresponding wire, a conveying head of the wire conveying mechanism 10 needs to be adjusted to have a suitable distance from a head of the laser welding portion 102 to ensure conveying accuracy, since the rotating shaft 1206 can rotate, the L-shaped connection block 1207 can rotate to achieve quick assembly and disassembly of the wire conveying mechanism based on a wide range of the subsequent wire conveying mechanism 10, which is convenient;
referring to fig. 2, 11, 12 and 14, the positioning assembly is disposed on the angle fine-tuning assembly for positioning the longitudinal angle, and includes a fixing base 1216, an electric telescopic rod 1217, an arc-shaped positioning rack 1218 and a positioning gear 1219, the fixing base 1216 is fixed to one of the surfaces of the shaft bases 1205, the electric telescopic rod 1217 is fixed to the bottom of the fixing base 1216, the arc-shaped positioning rack 1218 is fixed to the extending end of the electric telescopic rod 1217, the positioning gear 1219 is fixed to the surface of the rotating shaft 1206 and engaged with the arc-shaped positioning rack 1218, the electric telescopic rod 1217 is started and the extending end of the electric telescopic rod is shortened, the arc-shaped positioning rack 1218 is no longer engaged with the positioning gear 1219, the rotating shaft 1206 is rotated to adjust the longitudinal angle of the filament conveying mechanism 10, after the head of the electric telescopic rod is adjusted to a suitable distance from the head of the handle 101, the electric telescopic rod is started and the extending end of the electric telescopic rod is extended based on the telescopic rod switch 7, the arc-shaped positioning rack 1218 is engaged with the positioning gear 1219 again, and the rotating shaft 1206 cannot rotate, thereby completing the fine-tuning of the longitudinal angle;
referring to fig. 1 and fig. 2, the wire feeding mechanism 10 is detachably and adjustably disposed on the angle adjusting mechanism 12 to feed wire, and then high-efficiency welding is achieved, and the installation of the wire feeding mechanism 10 is explained above, and therefore, it is not described herein again, and what needs to be described is: the wire feeding mechanism 10 may adopt a screw conveyor in the prior art to feed wire, or may adopt other conventional embodiments in the art, which are well known in the art, and therefore, the present embodiment will not be described in detail;
referring to fig. 1, a motor switch 6 and a telescopic rod switch 7 are mounted at a side end of a handle portion 101, the motor switch 6 is electrically connected to a stepping motor 1104, and the telescopic rod switch 7 is electrically connected to an electric telescopic rod 1217, in this embodiment, the control of the stepping motor 1104 is realized by the motor switch 6, and the control of the electric telescopic rod 1217 is realized by the telescopic rod switch 7;
in this embodiment: the invention is convenient for welding different angles of workpieces, the stepping motor 1104 is started through the motor switch 6, the output end of the stepping motor 1104 rotates to drive the driving gear 1105 to rotate, based on the meshing performance between the driving gear 1105 and the driven gear 1106, the T-shaped annular rotating block 1101 rotates, based on the clamping fit between the plurality of U-shaped clamping blocks 1102 and the plurality of rectangular bayonets 1204, the rotation of the upper semicircular connecting block 1201 and the lower semicircular connecting block 1202 is realized, finally, the axial angle adjustment of the wire conveying mechanism 10 is realized to convey corresponding wires to different angles, and then the different angles of the workpieces are welded by matching the laser welding part 102.
Example 4
Since the stepping motor 1104, the driving gear 1105 and the driven gear 1106 are precision devices, they need to be protected to avoid corrosion, and the embodiment is additionally provided with a protecting cover 13 to solve the above technical problems, as described below:
referring to fig. 1, 9 and 10, a circular hole 1301 for passing the T-shaped rotating block 1101 is formed in the protective cover 13, a plurality of rectangular holes 1302 for passing the U-shaped fixture block 1102 are formed in an inner wall of the circular hole 1301, a plurality of evenly distributed mounting ears 1303 are fixed on a surface of the protective cover 13, each mounting ear 1303 is connected to the handle portion 101 through a mounting screw 1304, wherein:
after the protective cover 13 is assembled, the U-shaped fixture block 1102 is positioned outside the protective cover 13, and the T-shaped annular rotating block 1101 and the driving gear 1105 are both positioned in the gap between the protective cover 13 and the handle part 101;
the invention can effectively protect the stepping motor 1104, the driving gear 1105 and the driven gear 1106 from being corroded by arranging the protective cover 13, and has good dustproof performance.
Example 5
Because the welding process needs manual operation, the welding speed is different from person to person in the welding process, and the yield of the welded workpiece is easily influenced when the welding speed is too high, so that an operator needs to be prompted in the welding process to correct the welding speed, and the display screen 2, the display screen button 201 and the alarm lamp 3 are additionally arranged in the welding process to solve the technical problem;
referring to fig. 26, a display screen button 201 is mounted on the top of the handle 101 and electrically connected to the display screen 2 for setting a material welding parameter and a speed threshold parameter;
with continued reference to fig. 26, a warning light 3 is mounted on top of the handle portion 101 and is electrically connected to the upper control system.
Referring to fig. 26, finally, a mounting cavity 104 for accommodating the display screen 2 is formed in the top of the handle portion 101, a plurality of fastening grooves 105 are formed in the mounting cavity 104, a plurality of fasteners 202 fastened with the fastening grooves 105 are formed at the bottom of the edge of the display screen 2, and the display screen 2 is conveniently and rapidly assembled and disassembled by fastening the fasteners 202 with the fastening grooves 105, and is also electrically connected with an upper control system, an acceleration sensing module (not shown in the figure) is arranged at the bottom of the display screen 2, and a speed algorithm program is arranged in the upper control system;
the acceleration sensing module adopts a gyro accelerometer MPU6050, and reads data measured by the MPU6050 through a processor in the acceleration sensing module to obtain acceleration which is key data of the welding speed of the handheld welding head equipment, because the whole process from the time when an operator holds a welding head to start welding is from the time when the operator accelerates to a constant speed, please refer to 27, the invention obtains the constant speed by utilizing the characteristic, namely the actual welding speed data required by the operator, the actual speed can be displayed on a display screen 2 and compared with a preset speed threshold parameter, if the deviation is slightly large, an alarm lamp 3 can display red early warning, the warning speed exceeds the range and needs to be adjusted, the system function effectively avoids the welding of the operator by self consciousness, the best welding quality is not emphasized, meanwhile, a new-handed operator can achieve the effect, and certain personnel cost is reduced;
the algorithm reference formula is as follows:
a = AH & lt 8 cells AL/32768 × 1lg, va =at, when Va is greater than Vb + -beta or less than Vb + -beta, the actual welding speed is adjusted
In the formula, A is acceleration, AH is acceleration high byte, AL is acceleration low byte, va is actual welding speed, vb is originally set optimal speed, namely speed threshold parameter, and beta is speed floating value.
Example 6
A method of using a handheld welding device, comprising the steps of:
s1, assembling a protective cover 13: the circular hole site 1301 is inserted into the laser welding portion 102 and pushed inward, the angle of the protective cover 13 is adjusted, then the plurality of rectangular hole sites 1302 are respectively inserted through the plurality of U-shaped fixture blocks 1102 until the protective cover 13 is in contact with the handle portion 101, the plurality of mounting ears 1303 are sequentially assembled, after the assembly is completed, the U-shaped fixture blocks 1102 are located on the outer side of the protective cover 13, and the driving gear 1105 and the driven gear 1106 are located in a gap between the protective cover 13 and the handle portion 101;
s2, assembling a rotary connecting assembly: turning over the upper semicircular connecting block 1201 to close the upper semicircular connecting block 1201 and the lower semicircular connecting block 1202, sleeving the upper semicircular connecting block 1201 and the lower semicircular connecting block 1202 on the T-shaped annular rotating block 1101, respectively clamping the plurality of rectangular bayonets 1204 between the inner walls of the two sides of the plurality of U-shaped clamping blocks 1102, and then completing clamping, wherein the upper semicircular connecting block 1201 and the lower semicircular connecting block 1202 are both positioned outside the protective cover 13, after the upper semicircular connecting block 1201 and the lower semicircular connecting block 1202 are closed, the two L-shaped clamping blocks 1209 are respectively clamped in the two rectangular clamping grooves 1211, sequentially penetrating the screw 1213 through the plurality of connecting holes 1212, sleeving the gasket 1215, assembling the nut 1214, and finally completing the assembly of the rotating connecting assembly;
s3, assembling a wire conveying mechanism 10: threading the silk conveying mechanism 10 through the internal threaded hole 1208, rotating the silk conveying mechanism 10 appropriately based on the length of the silk conveying mechanism 10, and adjusting the silk conveying mechanism 10 to a proper position based on the threaded fit between the second external thread 1001 and the internal threaded hole 1208;
s4, fine adjustment of longitudinal angle: starting the electric telescopic rod 1217 based on the telescopic rod switch 7 and shortening the extension end thereof, wherein the arc-shaped positioning rack 1218 is not engaged with the positioning gear 1219 any more, then rotating the rotating shaft 1206 to realize the longitudinal angle adjustment of the wire conveying mechanism 10, adjusting the head thereof to a suitable distance from the head of the handle part 101, starting the electric telescopic rod 1217 based on the telescopic rod switch 7 and extending the extension end thereof, engaging the arc-shaped positioning rack 1218 with the positioning gear 1219 again, and then making the rotating shaft 1206 incapable of rotating to finish the longitudinal angle fine adjustment;
s5, assembling a metal induction proximity switch sensor 8: the metal inductive proximity switch sensor 8 is inserted into the two groups of supporting parts 904 from top to bottom, the outer wall of the metal inductive proximity switch sensor 8 extrudes the upper section of the ladder-shaped extrusion block 908, and the upper section of the ladder-shaped extrusion block 908 is of a downward-concave arc structure, and the ladder-shaped extrusion block 908 moves outwards due to the sliding fit between the limiting sliding rod 906 and the sliding hole 905, at the moment, the spring 9010 is gradually changed from an original state to a stretching state, and after the metal inductive proximity switch sensor 8 is attached to the arc concave surface at the bottom of the supporting parts 904, the clamping ball 909 is clamped with the spherical clamping groove 801 under the elastic action of the spring 9010;
s6, assembling, adjusting and installing mechanism 9: the internal thread connecting sleeve 903 is penetrated through the laser welding portion 102 and pushed inwards, then the internal thread connecting sleeve 903 is rotated, so that the second internal thread connecting cavity 9032 is in threaded fit with the first external thread 103, the mounting sleeve 901 and the external thread connecting sleeve 902 are penetrated through the laser welding portion 102 and pushed inwards, based on the sensing range of the metal sensing proximity switch sensor 8, the mounting sleeve 901 and the external thread connecting sleeve 902 are slid to appropriate positions to be matched with the metal sensing proximity switch sensors 8 in different sensing ranges, the metal sensing proximity switch sensors 8 are held to be fixed, then the internal thread connecting sleeve 903 is rotated, so that the first internal thread connecting cavity 9031 is in threaded fit with the external thread connecting sleeve 902, one side of the internal thread connecting sleeve 903 is in threaded fit with the first external thread 103, the other side of the internal thread connecting sleeve 903 is in threaded fit with the external thread connecting sleeve 902, and finally the assembly of the adjusting mounting mechanism 9 is completed to be matched with the metal sensing proximity switch sensors 8 in different sensing ranges;
s7, starting: handle portion 101 is held by hand and is made to shield infrared reflection induction sensor 5, then infrared reflection induction signals are obtained, during welding, handle portion 101 is aligned to welding to-be-processed welding or workpieces, metal induction proximity switch sensor 8 senses to obtain normally closed signals after welding to-be-processed or workpieces, gun body switch 4 is pressed to start, upper control system simultaneously obtains infrared reflection induction signals, normally closed signals and start instructions, welding gun body 1 can start, and then welding pieces, other workpieces and operators are effectively prevented from being accidentally injured;
s8, welding: the welding process is realized based on the mutual matching of the welding gun main body 1 and the wire conveying mechanism 10;
s9, axial angle adjustment: when the corresponding metal wires need to be conveyed to different angles and are matched with different angles of the laser welding part 102 for welding workpieces, the stepping motor 1104 is started through the motor switch 6, the output end of the stepping motor 1104 rotates to drive the driving gear 1105 to rotate, based on the meshing performance between the driving gear 1105 and the driven gear 1106, the T-shaped annular rotating block 1101 rotates, based on the clamping fit between the plurality of U-shaped clamping blocks 1102 and the plurality of rectangular bayonets 1204, the rotation of the upper semicircular connecting block 1201 and the lower semicircular connecting block 1202 is realized, and finally, the axial angle adjustment of the wire conveying mechanism 10 is realized to convey the corresponding metal wires to different angles and match with different angles of the workpieces welded by the laser welding part 102;
s10, correcting the welding speed: adjust material welding parameter and speed threshold value parameter based on display screen button 201, acquire the acceleration through acceleration sensing module during the welding, calculate actual welding speed through speed algorithm procedure then, upper control system compares actual welding speed with speed threshold value parameter, if both errors are great, then control alarm lamp 3 and light in order to realize reporting to the police, then remind the operator to correct welding speed, meanwhile actual welding speed can show on display screen 2.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A handheld welding device, comprising:
a welding gun body (1) composed of a handle part (101) and a laser welding part (102);
it is characterized by also comprising:
the metal induction proximity switch sensor (8) is in a normally open state, is arranged on the laser welding part (102) and is used for sensing the welding or the workpiece to be processed to obtain a normally closed signal;
the infrared reflection induction sensor (5) is arranged on the handle part (101) and is used for acquiring an infrared reflection induction signal;
the upper control system is arranged in the welding gun main body (1), is electrically connected with the welding gun main body, is also electrically connected with the metal induction proximity switch sensor (8) and the infrared reflection induction sensor (5), and is used for receiving the normally closed signal and the infrared reflection induction signal; and
rifle body switch (4), locate on handle portion (101) and be located infrared reflection inductive sensor (5) upside, it with upper control system electricity is connected, wherein:
when upper control system receives simultaneously normally closed signal and infrared reflection sensing signal back, press rifle body switch (4) start, upper control system control welding rifle main part (1) starts, then prevents the maloperation.
2. The handheld welding device of claim 1, wherein the metal inductive proximity switch sensor (8) is removably and adjustably mounted to the laser weld (102) by adjusting a mounting mechanism (9), which facilitates quick assembly of the metal inductive proximity switch sensor (8), which also adjusts the spacing of the metal inductive proximity switch sensor (8) to adjust the sensing range of the metal inductive proximity switch sensor (8).
3. A hand-held welding device according to claim 2, characterised in that the adjustment mounting mechanism (9) comprises:
a sliding assembly in sliding fit with the laser welding part (102) to achieve initial spacing adjustment;
a threaded connection assembly threadedly engaged with the slide assembly and the laser weld (102) to achieve fixed spacing;
and two groups of fastening and mounting assemblies are symmetrically arranged on the sliding assembly, and the metal induction proximity switch sensor (8) is detachably arranged on the two groups of fastening and mounting assemblies to realize quick assembly.
4. The handheld welding device according to claim 3, wherein the sliding assembly comprises a mounting sleeve (901) and an externally threaded connecting sleeve (902), the externally threaded connecting sleeve (902) is arranged at an end of the mounting sleeve (901), an outer diameter of the externally threaded connecting sleeve (902) is smaller than an inner diameter of the mounting sleeve (901), an inner diameter of the externally threaded connecting sleeve (902) is the same as the inner diameter of the mounting sleeve (901), and both the mounting sleeve (901) and the externally threaded connecting sleeve (902) are in sliding fit with the laser welding portion (102);
the threaded connection assembly comprises an internal threaded connection sleeve (903), a first internal threaded connection cavity (9031) and a second internal threaded connection cavity (9032) are arranged in the internal threaded connection sleeve, the caliber of the first internal threaded connection cavity (9031) is larger than that of the second internal threaded connection cavity (9032), the first internal threaded connection cavity (9031) is in threaded fit with the external threaded connection sleeve (902), and a first external thread (103) in threaded fit with the second internal threaded connection cavity (9032) is arranged on the laser welding portion (102);
each group of fastening and mounting assemblies comprises a bearing part (904), a limiting sliding rod (906), a limiting block (907), a ladder-shaped extrusion block (908), a clamping ball (909) and a spring (9010), wherein the bearing part (904) is arranged at the top of the mounting sleeve (901), an arc-shaped concave surface matched with the metal induction proximity switch sensor (8) is arranged on the bearing part (904), two sliding holes (905) are symmetrically formed in the bearing part (904), two T-shaped accommodating grooves (9011) are formed in two side walls, close to the bearing part (904), of the bearing part (904), the T-shaped accommodating grooves (9011) are communicated with the sliding holes (905), the limiting sliding rod (906), the limiting block (907), the ladder-shaped extrusion block (908), the clamping ball (909) and the spring (9010) are symmetrically distributed, the limiting sliding rod (906) is in sliding fit with the sliding holes (905) and movably penetrates through the T-shaped accommodating groove (11), the limiting sliding rod (907) is arranged at the end part of the limiting sliding rod (906) and is positioned at the outer side of the bearing part (906), the diameter of the limiting sliding rod (906) is larger than the diameter of the other limiting sliding rod (906), and the limiting sliding rod (906) is larger than the size of the limiting sliding rod (906), the upper section of the trapezoid extrusion block (908) is of a downward-sunken arc-shaped structure, the clamping balls (909) are arranged at the bottom of the outer wall of the trapezoid extrusion block (908), two groups of symmetrically-distributed spherical clamping grooves (801) are formed in the metal inductive proximity switch sensor (8), each group of spherical clamping grooves (801) are symmetrically distributed, each spherical clamping groove (801) is clamped with the clamping ball (909), and the spring (9010) is arranged between the outer wall of the bearing portion (904) and the limiting block (907) and sleeved on the circumferential surface of the limiting sliding rod (906).
5. The handheld welding apparatus of claim 4, further comprising:
a rotating mechanism (11) provided on the handle portion (101);
the angle adjusting mechanism (12) is detachably arranged on the rotating mechanism (11) to rotate along with the rotating mechanism (11), so that angle adjustment is realized; and
the wire conveying mechanism (10) is detachably and adjustably arranged on the angle adjusting mechanism (12) and is used for realizing wire feeding and then realizing high-efficiency welding.
6. A hand-held welding device according to claim 5, characterized in that the rotating mechanism (11) comprises:
the rotating assembly is rotatably arranged on the handle part (101); and
the driving component is arranged on the handle part (101) and is connected with the rotating component to realize the rotation of the rotating component;
the angle adjustment mechanism (12) includes:
the rotating connecting assembly is detachably arranged on the rotating assembly and clamped with the rotating assembly, and the rotating connecting assembly is matched with the rotating assembly to realize axial angle adjustment of the wire conveying mechanism (10);
the angle fine-tuning assembly is arranged on the rotating connecting assembly, and the wire conveying mechanism (10) is arranged on the angle fine-tuning assembly and used for realizing the longitudinal angle adjustment of the wire conveying mechanism (10); and
and the positioning assembly is arranged on the angle fine-tuning assembly and used for realizing longitudinal angle positioning.
7. The handheld welding device according to claim 6, characterized in that a T-shaped ring groove (14) and a motor groove (15) are formed in the end of the handle portion (101), the T-shaped ring groove (14) surrounds the laser welding portion (102), and the motor groove (15) is located on the lower side of the T-shaped ring groove (14);
the rotating assembly comprises a T-shaped rotating block (1101) and a U-shaped fixture block (1102), the T-shaped rotating block (1101) is in rotating fit with the T-shaped annular groove (14), one side of the T-shaped rotating block extends to the outer side of the handle part (101), a movable hole position (1103) is formed in the end portion of the T-shaped rotating block (1101), the laser welding portion (102) movably penetrates through the movable hole position (1103), a plurality of U-shaped fixture blocks (1102) are arranged on the surface of the T-shaped rotating block (1101) uniformly, and the U-shaped fixture blocks (1102) are located on the outer side of the T-shaped annular groove (14);
the driving assembly comprises a stepping motor (1104), a driving gear (1105) and a driven gear (1106), the stepping motor (1104) is arranged in the motor groove (15), the driving gear (1105) is arranged at the output end of the stepping motor (1104) and is positioned at the outer side of the motor groove (15), the driven gear (1106) is arranged on the surface of the U-shaped fixture block (1102) and is positioned at the outer side of the T-shaped annular groove (14), and the driven gear (1106) is meshed with the driving gear (1105);
the rotary connecting assembly comprises an upper semicircular connecting block (1201), a lower semicircular connecting block (1202), two hinges (1203), two L-shaped clamping blocks (1209), two rectangular connecting blocks (1210), two screws (1213), a nut (1214) and a gasket (1215), wherein the upper semicircular connecting block (1201) is movably hinged to one side of the lower semicircular connecting block (1202) through the two hinges (1203), the two L-shaped clamping blocks (1209) are symmetrically arranged on the other side of the upper semicircular connecting block (1201), the rectangular connecting block (1210) is arranged on the other side of the lower semicircular connecting block (1202), rectangular clamping grooves (1211) are formed in the two sides of the top of the rectangular connecting block (1210) from top to bottom, when the upper semicircular connecting block (1201) and the lower semicircular connecting block (1202) are closed, the two L-shaped clamping blocks (1209) are respectively clamped in the two rectangular clamping grooves (1211), connecting holes (1212) are respectively formed in the end portions of the rectangular connecting block (1210) and the end portions of the two L-shaped clamping blocks (1209), the screw (1212) penetrates through the movable connecting block (1212) and is located on one side of the nut (1213), and the screw (1210) and is located outside the threaded connecting block (1215), and the nut (1210), and the threaded connecting block (1215), and the nut (1213) is located on one side of the screw (1210) A side, wherein: when the upper semicircular connecting block (1201) and the lower semicircular connecting block (1202) are closed, a plurality of rectangular bayonets (1204) clamped with the U-shaped fixture block (1102) are formed in the inner walls of the upper semicircular connecting block (1201) and the lower semicircular connecting block (1202), and the upper semicircular connecting block (1201) and the lower semicircular connecting block (1202) are located between the inner walls of the two sides of the U-shaped fixture block (1102) to achieve limiting;
the angle fine-adjustment assembly comprises two shaft seats (1205), a rotating shaft (1206) and an L-shaped connecting block (1207), the two shaft seats (1205) are symmetrically arranged at the bottom of the lower semicircular connecting block (1202), the rotating shaft (1206) is rotatably arranged between the two shaft seats (1205), one end of the rotating shaft (1206) rotatably penetrates through one of the shaft seats (1205) and extends outwards, the L-shaped connecting block (1207) is fixed on the rotating shaft (1206), an inner threaded hole (1208) is formed in the L-shaped connecting block (1207), a second outer thread (1001) is arranged on the thread conveying mechanism (10), and the second outer thread (1001) is in threaded fit with the inner threaded hole (1208);
the positioning assembly comprises a fixed seat (1216), an electric telescopic rod (1217), an arc-shaped positioning rack (1218) and a positioning gear (1219), the fixed seat (1216) is arranged on the surface of one of the shaft seats (1205), the electric telescopic rod (1217) is arranged at the bottom of the fixed seat (1216), the arc-shaped positioning rack (1218) is arranged at the extending end of the electric telescopic rod (1217), and the positioning gear (1219) is arranged on the surface of the rotating shaft (1206) and meshed with the arc-shaped positioning rack (1218);
handle portion (101) side is equipped with motor switch (6) and telescopic link switch (7), motor switch (6) with step motor (1104) electricity is connected, telescopic link switch (7) with electric telescopic link (1217) electricity is connected.
8. The handheld welding apparatus of claim 7, further comprising:
protective cover (13), offer circular hole site (1301) that are used for T type ring turning block (1101) to pass through on protective cover (13), set up a plurality of rectangle hole sites (1302) that are used for U type fixture block (1102) to pass through on circular hole site (1301) the inner wall, protective cover (13) surface is equipped with a plurality of evenly distributed's installation ear (1303), every installation ear (1303) with all connect through mounting screw (1304) between handle portion (101), wherein:
when the protective cover (13) is assembled, the U-shaped clamping block (1102) is positioned on the outer side of the protective cover (13), and the T-shaped annular rotating block (1101) and the driving gear (1105) are both positioned in a gap between the protective cover (13) and the handle part (101).
9. The handheld welding apparatus of claim 8, further comprising:
the display screen (2), an installation cavity (104) for accommodating the display screen (2) is formed in the top of the handle portion (101), a plurality of buckle grooves (105) are formed in the installation cavity (104), a plurality of buckles (202) clamped with the buckle grooves (105) are arranged at the bottom of the edge of the display screen (2), the display screen (2) is further electrically connected with the upper control system, an acceleration sensing module is arranged at the bottom of the display screen (2), and a speed algorithm program is arranged in the upper control system;
the display screen key (201) is arranged at the top of the handle part (101), is electrically connected with the display screen (2), and is used for setting material welding parameters and speed threshold parameters; and
and the alarm lamp (3) is arranged on the top of the handle part (101) and is electrically connected with the upper control system.
10. Use of a hand-held welding device according to claim 9, characterized in that it comprises the following steps:
s1, assembling a protective cover (13): the method comprises the steps that a circular hole site (1301) penetrates through a laser welding portion (102) and is pushed inwards, the angle of a protective cover (13) is adjusted, then a plurality of rectangular hole sites (1302) penetrate through a plurality of U-shaped clamping blocks (1102) respectively until the protective cover (13) is contacted with a handle portion (101), a plurality of mounting ears (1303) are assembled in sequence, after assembly is completed, the U-shaped clamping blocks (1102) are located on the outer side of the protective cover (13), and a driving gear (1105) and a driven gear (1106) are located in a gap between the protective cover (13) and the handle portion (101);
s2, assembling a rotary connecting assembly: the upper semicircular connecting block (1201) is turned over to be closed with the lower semicircular connecting block (1202), the upper semicircular connecting block (1201) and the lower semicircular connecting block (1202) are sleeved on the T-shaped annular rotating block (1101), the plurality of rectangular bayonets (1204) are clamped between the inner walls of the two sides of the plurality of U-shaped clamping blocks (1102) respectively, clamping is completed, the upper semicircular connecting block (1201) and the lower semicircular connecting block (1202) are located on the outer side of the protective cover (13), after the upper semicircular connecting block (1201) and the lower semicircular connecting block (1202) are closed, the two L-shaped clamping blocks (1209) are clamped in the two rectangular clamping grooves (1211) respectively, the screw (1213) sequentially penetrates through the plurality of connecting holes (1212), the gaskets (1215) are sleeved, nuts (1214) are assembled, and finally the assembly of the rotating connecting assembly is completed;
s3, assembling a wire conveying mechanism (10): the silk conveying mechanism (10) penetrates through the internal thread hole (1208), the silk conveying mechanism (10) is rotated appropriately based on the length of the silk conveying mechanism (10), and the silk conveying mechanism (10) is adjusted to a proper position based on the threaded fit between the second external thread (1001) and the internal thread hole (1208);
s4, fine adjustment of longitudinal angle: starting the electric telescopic rod (1217) based on the telescopic rod switch (7) and shortening the extension end of the electric telescopic rod (1217), wherein the arc-shaped positioning rack (1218) is not engaged with the positioning gear (1219), then rotating the rotating shaft (1206) to realize the longitudinal angle adjustment of the wire conveying mechanism (10), after adjusting the head of the electric telescopic rod to be at a proper distance from the head of the handle part (101), starting the electric telescopic rod (1217) based on the telescopic rod switch (7) and extending the extension end of the electric telescopic rod, engaging the arc-shaped positioning rack (1218) with the positioning gear (1219) again, then enabling the rotating shaft (1206) not to rotate, and finishing the longitudinal angle fine adjustment;
s5, assembling a metal induction proximity switch sensor (8): inserting a metal induction proximity switch sensor (8) into the two groups of bearing parts (904) from top to bottom, extruding the upper section of a ladder-shaped extrusion block (908) by the outer wall of the metal induction proximity switch sensor (8), and enabling the ladder-shaped extrusion block (908) to move outwards because the upper section of the metal induction proximity switch sensor is of a downward-sunken arc-shaped structure and based on sliding fit between a limiting sliding rod (906) and a sliding hole (905), wherein the spring (9010) gradually changes from an original state to a stretched state, and after the metal induction proximity switch sensor (8) is attached to an arc-shaped concave surface at the bottom of the bearing part (904), a clamping ball (909) is clamped with a spherical clamping groove (801) under the elastic action of the spring (9010);
s6, assembling, adjusting and installing mechanism (9): the method comprises the steps that an internal thread connecting sleeve (903) penetrates through a laser welding part (102) and is pushed inwards, then the internal thread connecting sleeve (903) is rotated, a second internal thread connecting cavity (9032) is in threaded fit with a first external thread (103), a mounting sleeve (901) and an external thread connecting sleeve (902) penetrate through the laser welding part (102) and are pushed inwards, based on the sensing range of a metal sensing proximity switch sensor (8), the mounting sleeve (901) and the external thread connecting sleeve (902) are slid to suitable positions to be matched with the metal sensing proximity switch sensors (8) in different sensing ranges, the metal sensing proximity switch sensor (8) is held to be fixed, then the internal thread connecting sleeve (903) is rotated, so that a first internal thread connecting cavity (9031) is in threaded fit with the external thread connecting sleeve (902), one side of the internal thread connecting sleeve (903) is in threaded fit with the first external thread (103), the other side of the internal thread connecting sleeve (902) is in threaded fit with the external thread connecting sleeve (902), and finally the assembly of an adjusting mounting mechanism (9) is finished to be matched with the metal sensing proximity switch sensors (8) in different sensing ranges;
s7, starting: hold handle portion (101) and make it shelter from infrared reflection inductive sensor (5), then acquire infrared reflection inductive signal, during the welding, aim at handle portion (101) welding and wait to process welding or work piece, metal response proximity switch sensor (8) sensing obtains normally closed signal after waiting to process welding or work piece, press rifle body switch (4) and start, upper control system acquires infrared reflection inductive signal simultaneously, after normally closed signal and start instruction, welding rifle main part (1) side can start, then effectively avoid accidentally injuring the weldment, other work pieces and operating personnel;
s8, welding: the welding process is realized based on the mutual matching of the welding gun main body (1) and the wire conveying mechanism (10);
s9, axial angle adjustment: when corresponding metal wires need to be conveyed to different angles and then are matched with different angles of a workpiece welded by the laser welding part (102), the stepping motor (1104) is started through the motor switch (6), the output end of the stepping motor (1104) rotates to drive the driving gear (1105) to rotate, the T-shaped annular rotating block (1101) rotates based on the meshing performance between the driving gear (1105) and the driven gear (1106), the upper semicircular connecting block (1201) and the lower semicircular connecting block (1202) rotate based on the clamping fit between the U-shaped clamping blocks (1102) and the rectangular bayonets (1204), and finally the axial angle adjustment of the wire conveying mechanism (10) is realized to convey the corresponding metal wires to different angles and then be matched with different angles of the workpiece welded by the laser welding part (102);
s10, correcting the welding speed: adjust material welding parameter and speed threshold value parameter based on display screen button (201), acquire the acceleration through acceleration sensing module during the welding, then calculate actual welding speed through speed algorithm procedure, upper control system compares actual welding speed with speed threshold value parameter, if both errors are great, then control alarm lamp (3) and light in order realizing the warning, then remind the operator to correct welding speed, meanwhile actual welding speed can show on display screen (2).
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| CN202310215959.6A CN115889998B (en) | 2023-03-08 | 2023-03-08 | Handheld welding equipment and application method thereof |
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| CN110919170A (en) * | 2019-12-31 | 2020-03-27 | 武汉市春天光电科技有限公司 | Handheld laser swing welding gun |
| CN112392138A (en) * | 2020-10-27 | 2021-02-23 | 福建省广泽建设工程有限公司 | Steel construction building integral construction system |
| CN214602537U (en) * | 2021-03-01 | 2021-11-05 | 铭镭激光智能装备（河源）有限公司 | Laser welding head and laser device |
| CN215316335U (en) * | 2021-04-22 | 2021-12-28 | 宁夏恒泰化工设备有限公司 | Handheld laser welding head with safety device |
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| JPH0569144A (en) * | 1991-09-13 | 1993-03-23 | Nkk Corp | Rotary arc welding torch |
| CN103809211A (en) * | 2014-02-18 | 2014-05-21 | 苏州经贸职业技术学院 | Infrared reflection sensing module and work method thereof |
| CN109604779A (en) * | 2019-01-23 | 2019-04-12 | 西南交通大学 | Electric arc silk filling increasing material manufacturing paraxonic wire feed direction-control apparatus |
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| CN115889998B (en) | 2023-05-30 |
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Denomination of invention: A handheld welding equipment and its usage method Granted publication date: 20230530 Pledgee: Heyuan branch of China Guangfa Bank Co.,Ltd. Pledgor: Guangdong Haosheng Intelligent Equipment Co.,Ltd. Registration number: Y2024980016344 |