阅读说明：本技术 一种数控液压自动冷焊机 (Numerical control hydraulic automatic cold welding machine ) 是由 汪时 李宝 陈宁 于 2019-09-19 设计创作，主要内容包括：本发明属于焊接领域,具体的说是一种数控液压自动冷焊机,包括底座、安装支架、预热机构、热处理机构、保温机构、固定机构和间距调整机构；所述底座上表面放置有焊接板；所述焊接板左右两端上表面设有固定机构；所述固定机构上端通过第一液压杆固定连接在安装支架的下表面两端；所述安装支架中部下表面通过第二液压杆固定连接有焊接块；所述焊接块中部下表面固定连接有焊接头；所述预热机构上端固定连接在焊接块的右端下表面,预热机构包括连接柱、安装座、激光灯、导电块、滑动金属块和固定框；本发明主要用于解决现有技术对钢铁进行焊缝时温度差太大导致钢铁结构损坏,且焊接区域在焊接时的温度较高,易造成零件损坏和焊接热量浪费的问题。(The invention belongs to the field of welding, and particularly relates to a numerical control hydraulic automatic cold welding machine which comprises a base, an installation support, a preheating mechanism, a heat treatment mechanism, a heat preservation mechanism, a fixing mechanism and a spacing adjusting mechanism, wherein the base is provided with a base seat; a welding plate is arranged on the upper surface of the base; the upper surfaces of the left end and the right end of the welding plate are provided with fixing mechanisms; the upper end of the fixing mechanism is fixedly connected to the two ends of the lower surface of the mounting bracket through a first hydraulic rod; the lower surface of the middle part of the mounting bracket is fixedly connected with a welding block through a second hydraulic rod; the lower surface of the middle part of the welding block is fixedly connected with a welding head; the upper end of the preheating mechanism is fixedly connected to the lower surface of the right end of the welding block, and the preheating mechanism comprises a connecting column, a mounting seat, a laser lamp, a conductive block, a sliding metal block and a fixing frame; the invention is mainly used for solving the problems that the steel structure is damaged due to too large temperature difference when the steel is welded in the prior art, and parts are easily damaged and welding heat is wasted due to higher temperature of a welding area during welding.)

1. A numerical control hydraulic automatic cold welding machine comprises a base (1), a mounting bracket (2), a preheating mechanism (3), a heat treatment mechanism (4), a heat preservation mechanism (5), a fixing mechanism (6) and a spacing adjusting mechanism (7); the method is characterized in that: a welding plate (11) is arranged on the upper surface of the base (1); the upper surfaces of the left end and the right end of the welding plate (11) are provided with fixing mechanisms (6); the upper end of the fixing mechanism (6) is fixedly connected to the two ends of the lower surface of the mounting bracket (2) through a first hydraulic rod (8); the lower surface of the middle part of the mounting bracket (2) is fixedly connected with a welding block (91) through a second hydraulic rod (9); the lower surface of the middle part of the welding block (91) is fixedly connected with a welding head (92); a preheating mechanism (3) is arranged on the right side of the welding head (92); the upper end of the preheating mechanism (3) is fixedly connected to the lower surface of the right end of the welding block (91), and the preheating mechanism (3) comprises a connecting column (31), a mounting seat (32), a laser lamp (33), a conductive block (34), a sliding metal block (35) and a fixing frame (36); the upper end of the connecting column (31) is fixedly arranged on the lower surface of the right end of the welding block (91), and a mounting seat (32) is fixedly connected inside the lower end of the connecting column (31); laser lamps (33) are uniformly and fixedly arranged in the mounting seat (32); the upper end of the laser lamp (33) is fixedly connected with a conductive block (34); a sliding metal block (35) is arranged on the upper surface of the conductive block (34) in a sliding manner; the right end of the sliding metal block (35) is connected in the fixed frame (36) in a sliding mode through a spring; the fixing frame (36) is embedded and installed in the lower end wall of the connecting column (31).

2. The numerical control hydraulic automatic cold welding machine according to claim 1, characterized in that: the heat treatment mechanism (4) comprises a light-gathering cover (41), thermal expansion rubber (42), a reflecting plate (43), ceramic silicon rubber (44) and a metal hose (45); the light-gathering cover (41) is fixedly arranged at the lower end of the connecting column (31), and the upper surface of the inner end of the light-gathering cover (41) is fixedly provided with thermal expansion rubber (42); the thermal expansion rubber (42) is arc-shaped, and the lower end of the thermal expansion rubber (42) is fixedly connected to the inner surface of the reflector (43); the upper end of the reflecting plate (43) is hinged on the inner wall of the light-gathering cover (41), and ceramic silicon rubber (44) is arranged on the outer side of the reflecting plate (43); the density of the ceramic silicon rubber (44) is set from small to large from inside to outside, and the outer end of the ceramic silicon rubber (44) is fixedly connected with a metal hose (45).

3. The numerical control hydraulic automatic cold welding machine according to claim 1, characterized in that: the heat preservation mechanism (5) is arranged on the left side of the welding head (92), and the heat preservation mechanism (5) comprises a fan (51), a ventilation pipe (52), a flexible metal plate (53), a baffle ring (54), a rotating shaft (55), a rotating rod (56), a sliding rod (57), a fixed rod (58) and a rotating block (59); the baffle ring (54) is fixedly arranged at the lower end of the welding head (92); the fan (51) is fixedly arranged on the upper surface of the left end of the welding block (91), and the lower end of the fan (51) is fixedly connected with the ventilation pipe (52); the ventilation pipe (52) is fixedly arranged on the lower surface of the left end of the welding block (91), the outer surface of the ventilation pipe (52) is fixedly wound and connected with a metal hose (45), and the lower end of the ventilation pipe (52) is fixedly connected with a flexible metal plate (53); a dispersion groove (531) is arranged in the flexible metal plate (53), and the upper surface of the flexible metal plate (53) is fixedly connected with a sliding rod (57); the dispersion groove (531) is communicated with the ventilation pipe (52), and dispersion holes (532) are formed in the lower end of the dispersion groove (531); the sliding rod (57) is connected inside the rotating block (59) in a sliding manner, and the upper end of the sliding rod (57) is connected with a rotating rod (56) in a rotating manner; the rotating block (59) is rotatably arranged at the lower end of the fixed rod (58); the inner end of the rotating rod (56) is fixedly connected to the rotating shaft (55); the upper end of the fixing rod (58) is fixedly arranged on the front surface of the welding block (91); the rotating shaft (55) is rotatably arranged inside the welding block (91).

4. The numerical control hydraulic automatic cold welding machine according to claim 1, characterized in that: the fixing mechanism (6) comprises an air cylinder (61), an extrusion block (62), a traction wheel (63) and a rubber ring (64); the air cylinder (61) is fixedly arranged at the lower end of the first hydraulic rod (8), and the lower end of the air cylinder (61) is fixedly provided with the extrusion block (62); the extrusion block (62) is arranged above the welding plate (11), and traction wheels (63) are rotatably arranged inside two ends of the lower side of the extrusion block (62); the traction wheel (63) is arranged as a cam, and a rubber ring (64) is fixedly arranged on the outer surface of the traction wheel (63).

5. The numerical control hydraulic automatic cold welding machine according to claim 4, characterized in that: the lower end of the cylinder (61) is provided with a spacing adjusting mechanism (7); the distance adjusting mechanism (7) comprises a sliding groove (71), a mounting column (72), a splicing block (73) and a liquid storage groove (74); the sliding groove (71) is formed in the extrusion block (62), a liquid storage groove (74) is formed in the lower side of the sliding groove (71), and a mounting column (72) is arranged in the sliding groove (71); the liquid storage tank (74) is arranged in the base (1); the mounting column (72) is fixedly mounted at the lower end of the air cylinder (61), and a splicing block (73) is arranged at the lower end of the mounting column (72); the splicing blocks (73) are arranged in a plurality, and the splicing blocks (73) are in a circular truncated cone shape after being spliced.

6. The numerical control hydraulic automatic cold welding machine according to claim 5, characterized in that: a cooling groove (731) is formed in the splicing block (73); the cooling grooves (731) are arranged in a ring shape, the cooling grooves (731) are communicated with each other, and the diffusion grooves (732) are arranged above the cooling grooves (731); the diffusion groove (732) is arranged at the lower end of the mounting column (72), liquid leakage holes (733) are uniformly formed in the periphery of the diffusion groove (732), and a storage groove (734) is communicated with the upper side of the diffusion groove (732); a cooling liquid (735) is arranged in the storage tank (734); the cooling liquid (735) is composed of water, a lubricant and a flame retardant.

Technical Field

The invention belongs to the field of welding, and particularly relates to a numerical control hydraulic automatic cold welding machine.

Background

With the rapid development of industries with a great demand for steel, such as automobiles, bridges, buildings, household appliances and the like in China, steel enterprises have higher and higher requirements on the yield and quality of high-standard and high-cost-performance steel. At present, most of domestic iron and steel enterprises gradually move towards the trend of product transformation and equipment upgrading, and the style demand of steel is also increasing along with the development of science and technology, it is well known that most of processing procedures are occupied in the welding in the production process of steel, the welding seam treatment of steel is just one of the welding modes, the existing steel welding seam is usually only welded to the gap that needs to be treated by adopting a welding head, but because resistance welding's temperature is very high in the welding process, so can lead to welding region temperature to rise suddenly, cause part damage easily, simultaneously because the welding region is great in the temperature difference before the welding and after the welding, produce welding stress very easily, cause structural damage to the welded part.

Disclosure of Invention

In order to make up the defects of the prior art, the invention provides a numerical control hydraulic automatic cold welding machine. The invention is mainly used for solving the problems that the steel structure is damaged due to too large temperature difference when the steel is welded in the prior art, and parts are easily damaged and welding heat is wasted due to higher temperature of a welding area during welding.

The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a numerical control hydraulic automatic cold welding machine which comprises a base, a mounting bracket, a preheating mechanism, a heat treatment mechanism, a heat preservation mechanism, a fixing mechanism and a spacing adjusting mechanism, wherein the base is provided with a plurality of mounting brackets; a welding plate is arranged on the upper surface of the base; the upper surfaces of the left end and the right end of the welding plate are provided with fixing mechanisms; the upper end of the fixing mechanism is fixedly connected to the two ends of the lower surface of the mounting bracket through a first hydraulic rod; the lower surface of the middle part of the mounting bracket is fixedly connected with a welding block through a second hydraulic rod; the lower surface of the middle part of the welding block is fixedly connected with a welding head; a preheating mechanism is arranged on the right side of the welding head; the upper end of the preheating mechanism is fixedly connected to the lower surface of the right end of the welding block, and the preheating mechanism comprises a connecting column, a mounting seat, a laser lamp, a conductive block, a sliding metal block and a fixing frame; the upper end of the connecting column is fixedly arranged on the lower surface of the right end of the welding block, and the mounting seat is fixedly connected inside the lower end of the connecting column; laser lamps are uniformly and fixedly arranged in the mounting seat; the upper end of the laser lamp is fixedly connected with a conductive block; the upper surface of the conductive block is provided with a sliding metal block in a sliding manner; the right end of the sliding metal block is connected in the fixed frame in a sliding manner through a spring; the fixing frame is embedded in the lower end wall of the connecting column; when the welding head is used for welding the welding plate, the welding block is adjusted to be above the welding plate by controlling the second hydraulic rod, the welding head is started for welding, when the welding head starts to move to the right side in the welding process, namely, the connecting column and the connecting frame move to the right side, when the fixing frame moves to the right side, the sliding metal block is connected in the fixing frame through the spring, the sliding metal block can slide to the left side in the sliding metal block relative to the connecting column, when the sliding metal block is in sliding contact with the conductive block, the laser lamps corresponding to the lower part of the conductive block are started, the more the laser lamps which are started up the faster the connecting column moves are more, the laser heating is carried out on the area which is not welded, the welding head can be used for preheating the welding plate according to the moving speed when the welding head is used for welding the welding plate by arranging the sliding metal block and the conductive block, and the welding strength of the welding, avoid the insufficient welding to lead to welding plate structural strength not up to standard.

The heat treatment mechanism comprises a light-gathering cover, thermal expansion rubber, a reflecting plate, ceramic silicon rubber and a metal hose; the light-gathering cover is fixedly arranged at the lower end of the connecting column, and the upper surface of the inner end of the light-gathering cover is fixedly provided with thermal expansion rubber; the thermal expansion rubber is arranged in an arc shape, and the lower end of the thermal expansion rubber is fixedly connected to the inner surface of the reflector; the upper end of the reflector is hinged on the inner wall of the light-gathering shade, and ceramic silicon rubber is arranged on the outer side of the reflector; the density of the ceramic silicon rubber is set from small to large from inside to outside, and the outer end of the ceramic silicon rubber is fixedly connected with a metal hose; after the laser lamp is started, the thermal expansion rubber in the condensing hood below can be heated, because the thermal expansion rubber is arc-shaped, the thermal expansion rubber can stretch towards two ends under the heating action, namely, the reflector below is pushed to expand towards two sides, when the reflector contacts the ceramic silicon rubber in the expansion process, the reflector does not expand any more, and the high temperature on the reflector is transmitted to the ceramic silicon rubber, because the density of the ceramic silicon rubber is set from inside to outside, namely, the ceramic silicon rubber at the outer end is rapidly heated and transmitted to the inner end of the ceramic silicon rubber, and because the outer end of the ceramic silicon rubber is connected with the metal hose, namely, the ceramic silicon rubber transmits the heat into the metal hose, the area irradiated and heated by the laser lamp can be expanded when the laser lamp preheats the welding plate by arranging the thermal expansion rubber and the reflector, and the heating effect of the laser lamp is further enhanced, and the density of the ceramic silicon rubber is set from inside to outside from small to large, so that the rapid transmission of heat on the reflector can be realized, and the heat transmission efficiency is enhanced.

The heat preservation mechanism is arranged on the left side of the welding head and comprises a fan, a ventilation pipe, a flexible metal plate, a baffle ring, a rotating shaft, a rotating rod, a sliding rod, a fixed rod and a rotating block; the baffle ring is fixedly arranged at the lower end of the welding head; the fan is fixedly arranged on the upper surface of the left end of the welding block, and the lower end of the fan is fixedly connected with a ventilation pipe; the ventilation pipe is fixedly arranged on the lower surface of the left end of the welding block, a metal hose is fixedly wound and connected on the outer surface of the ventilation pipe, and a flexible metal plate is fixedly connected at the lower end of the ventilation pipe; a dispersion groove is formed in the flexible metal plate, and a sliding rod is fixedly connected to the upper surface of the flexible metal plate; the dispersion groove is communicated with the ventilation pipe, and dispersion holes are formed in the lower end of the dispersion groove; the sliding rod is connected inside the rotating block in a sliding mode, and the upper end of the sliding rod is connected with a rotating rod in a rotating mode; the rotating block is rotatably arranged at the lower end of the fixed rod; the inner end of the rotating rod is fixedly connected to the rotating shaft; the upper end of the fixed rod is fixedly arranged on the front surface of the welding block; the rotating shaft is rotatably arranged inside the welding block; when the welding head welds the welding plate, the metal hose continuously transmits the heat transmitted by the ceramic silicon rubber into the ventilation pipe, and the outer wall of the ventilation pipe is continuously heated in the conveying process, at the moment, because the fan always inputs air into the ventilation pipe, the air can be rapidly heated when passing through the ventilation pipe and flows into the dispersion groove in the flexible metal plate and is diffused through the dispersion holes in the dispersion groove, at the moment, the rotating rod drives the sliding rod to do circular rotation motion around the rotating shaft due to the continuous rotation of the rotating shaft, the upper end of the sliding rod is rotationally connected with the rotating rod, the lower end of the sliding rod is slidably arranged in the rotating block, and the rotating block is rotationally arranged on the fixed rod, namely, the sliding rod does arc reciprocating motion while the rotating rod rotates, namely, the flexible metal plate is driven to do arc reciprocating motion, so that the hot air blown out from the dispersion holes does not stop hitting on the welding plate, the welding plate that finishes to the welding keeps warm, and the baffle ring of soldered connection lower extreme surface mounting makes the unable welding head below of arrival of the hot-air that the flexible metal sheet blew off, can protect the welding process, can realize at the flexible metal sheet arc reciprocating motion of welded in-process through the slide bar that sets up mechanical motion, evenly spread the hot-air that blows off to the welded plate that the welding was accomplished, protect the welded plate, avoid the welded plate to cause the welding department structure to damage because of the temperature contrast is too big and influence the welding effect, the baffle ring that sets up simultaneously can avoid the flexible metal sheet to blow the hot-air to the soldered connection below, prevent to blow the dust to the welding department in the welded process and reduce welding strength.

The fixing mechanism comprises an air cylinder, an extrusion block, a traction wheel and a rubber ring; the air cylinder is fixedly arranged at the lower end of the first hydraulic rod, and the extrusion block is fixedly arranged at the lower end of the air cylinder; the extrusion block is arranged above the welding plate, and traction wheels are rotatably arranged inside two ends of the lower side of the extrusion block; the traction wheel is arranged as a cam, and a rubber ring is fixedly arranged on the outer surface of the traction wheel; when needs weld two welding plates, place the welding plate at the base upper surface, place the first hydraulic stem of back control after finishing and make the stripper block downstream until laminating welding plate, the traction wheel begins to be relative motion when stripper block and welding plate laminating are inseparable, pull welding plate toward the inner end, when the interval between two welding plates reaches appointed numerical value promptly the soldered connection begins to work and welds the gap, set up to the cam because of the traction wheel, two welding plates can intermittent type increase the extrusion dynamics to welding plate when being close to each other traction wheel promptly, improve the pull strength to welding plate by a wide margin, and can make the traction wheel have certain elastic action to it when drawing welding plate through the surface mounting rubber circle at the traction wheel, avoid the extrusion force of traction wheel intermittent type nature increase to produce the surface of welding plate and destroy.

The lower end of the cylinder is provided with a spacing adjusting mechanism; the distance adjusting mechanism comprises a sliding chute, a mounting column, a splicing block and a liquid storage tank; the sliding groove is formed in the extrusion block, a liquid storage groove is formed in the lower side of the sliding groove, and an installation column is arranged in the sliding groove; the liquid storage tank is arranged in the base; the mounting column is fixedly mounted at the lower end of the air cylinder, and the lower end of the mounting column is provided with a splicing block; the splicing blocks are arranged in a plurality, and the splicing blocks are in a circular truncated cone shape after being spliced; when two welding plates begin to be close to, the cylinder begins to promote the erection column promptly and moves down along the spout, splice piece begin to move down and final inlay card between two welding plates promptly, for the round platform form after accomplishing because of the splice piece concatenation, so along with the difference of the length that the splice piece moved down means the gap size difference between two welding blocks promptly, can realize the size according to welding plate thickness size decision welding gap, thereby avoid welding gap undersize when the welding plate is thick to influence the joint strength between two welding plates, and the liquid storage groove in the base can move down for it provides suitable space when more in the splice piece, avoid the splice piece to receive the damage.

A cooling groove is formed in the splicing block; the cooling grooves are arranged in a circular shape, the cooling grooves are communicated with one another, and diffusion grooves are arranged above the cooling grooves; the diffusion groove is formed at the lower end of the mounting column, liquid leakage holes are uniformly formed in the periphery of the diffusion groove, and a storage groove is communicated with the upper side of the diffusion groove; cooling liquid is arranged in the storage tank; the cooling liquid consists of water, a lubricant and a flame retardant; when the splicing block is embedded between the two mounting plates and the welding head begins to be welded, the splicing block and the mounting columns can be rapidly heated, cooling liquid in a storage tank in the mounting columns is heated under the high-temperature action of the mounting columns, the liquid has the properties of thermal expansion and cold contraction, namely, the cooling liquid in the storage tank enters a diffusion tank below the storage tank, the cooling liquid entering the diffusion tank rapidly enters a cooling tank in the splicing block under the pressure action to cool the splicing block, the splicing block is prevented from being deformed under the high-temperature action to influence the size of a gap between the two welding plates, so that the connection strength between the welding shifts is influenced, part of the cooling liquid flows out from a liquid leakage hole under the pressure action and is uniformly diffused to the outer surface of the splicing block to be matched with the cooling liquid in the splicing block, so that high-efficiency cooling is realized, and meanwhile, the cooling liquid on the outer surface of the splicing block can provide a certain lubricating action for the cooling liquid because the cooling liquid consists of water, a lubricating agent and a fire retardant, the clamping of a welding plate of the splicing block after welding is prevented from being difficult to separate, and the structure is prevented from being damaged.

The invention has the following beneficial effects:

1. according to the invention, by arranging the sliding metal block and the conductive block, different laser lamps can be started to preheat the welding plate according to the moving speed when the welding head welds the welding plate, so that the welding strength of the welding head to the welding plate is ensured, and the problem that the welding plate structure strength does not reach the standard due to insufficient welding is avoided.

2. According to the invention, the thermal expansion rubber and the reflector plate are arranged, so that the irradiation heating area of the laser lamp is enlarged when the laser lamp preheats the welding plate, the heating effect of the laser lamp is further enhanced, and the density of the ceramic silicon rubber is set from inside to outside from small to large, so that the rapid transmission of heat on the reflector plate can be realized, and the heat transmission efficiency is enhanced.

3. The invention can realize the arc reciprocating motion of the flexible metal plate in the welding process by arranging the slide rod with mechanical motion, uniformly diffuse the blown hot air to the welded plate after welding, protect the welded plate, avoid the welding effect influenced by the structural damage of the welding position due to too large temperature contrast of the welded plate, simultaneously prevent the flexible metal plate from blowing the hot air to the lower part of the welding head, and prevent dust from blowing to the welding position in the welding process to reduce the welding strength.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a schematic structural view of the thermal insulation mechanism of FIG. 1 according to the present invention;

FIG. 3 is a schematic structural view of the securing mechanism of FIG. 1 in accordance with the present invention;

FIG. 4 is a schematic structural view of the preheating mechanism of FIG. 1 according to the present invention;

FIG. 5 is an enlarged view of a portion of the invention at A in FIG. 1;

FIG. 6 is an enlarged view of a portion of the invention at B in FIG. 3;

in the figure: the laser lamp preheating device comprises a base 1, a welding plate 11, a mounting bracket 2, a preheating mechanism 3, a connecting column 31, a mounting seat 32, a laser lamp 33, a conductive block 34, a sliding metal block 35, a fixing frame 36, a heat treatment mechanism 4, a light gathering cover 41, thermal expansion rubber 42, a reflecting plate 43, ceramic silicon rubber 44, a metal hose 45, a heat preservation mechanism 5, a fan 51, a ventilation pipe 52, a flexible metal plate 53, a dispersion groove 531, dispersion holes 532, a baffle ring 54, a rotating shaft 55, a rotating rod 56, a sliding rod 57, a fixing rod 58, a rotating block 59, a fixing mechanism 6, an air cylinder 61, an extrusion block 62, a traction wheel 63, a rubber ring 64, a distance adjusting mechanism 7, a sliding groove 71, a mounting column 72, a splicing block 73, a cooling groove 731, a diffusion groove 732, a liquid leakage hole 733, a storage groove 734, a cooling liquid 735, a liquid storage groove 74, a first hydraulic rod 8, a second hydraulic rod.

Detailed Description

A numerical control hydraulic automatic cold welding machine according to an embodiment of the present invention will be described below with reference to fig. 1 to 6.

As shown in fig. 1-6, the numerical control hydraulic automatic cold welding machine of the present invention comprises a base 1, a mounting bracket 2, a preheating mechanism 3, a heat treatment mechanism 4, a heat preservation mechanism 5, a fixing mechanism 6 and a spacing adjustment mechanism 7; a welding plate 11 is arranged on the upper surface of the base 1; the upper surfaces of the left end and the right end of the welding plate 11 are provided with fixing mechanisms 6; the upper end of the fixing mechanism 6 is fixedly connected to the two ends of the lower surface of the mounting bracket 2 through a first hydraulic rod 8; the lower surface of the middle part of the mounting bracket 2 is fixedly connected with a welding block 91 through a second hydraulic rod 9; the lower surface of the middle part of the welding block 91 is fixedly connected with a welding head 92; the preheating mechanism 3 is arranged on the right side of the welding head 92; the upper end of the preheating mechanism 3 is fixedly connected to the lower surface of the right end of the welding block 91, and the preheating mechanism 3 comprises a connecting column 31, a mounting seat 32, a laser lamp 33, a conductive block 34, a sliding metal block 35 and a fixing frame 36; the upper end of the connecting column 31 is fixedly arranged on the lower surface of the right end of the welding block 91, and the mounting seat 32 is fixedly connected inside the lower end of the connecting column 31; the laser lamps 33 are uniformly and fixedly arranged in the mounting seat 32; the upper end of the laser lamp 33 is fixedly connected with a conductive block 34; a sliding metal block 35 is arranged on the upper surface of the conductive block 34 in a sliding manner; the right end of the sliding metal block 35 is connected in the fixed frame 36 in a sliding manner through a spring; the fixing frame 36 is embedded in the lower end wall of the connecting column 31; when welding the welding plate 11, the welding block 91 is adjusted to the upper part of the welding plate 11 by controlling the second hydraulic rod 9, and the welding head 92 is started to weld, when the welding head 92 starts to move to the right side in the welding process, namely, the connecting column 31 and the connecting frame move to the right, when the fixing frame 36 moves to the right, because the sliding metal block 35 is connected in the fixing frame 36 through the spring, the sliding metal block 35 can slide to the left in relative to the connecting column 31, when the sliding metal block 35 is in sliding contact with the conductive block 34, even if the laser lamp 33 corresponding to the lower part of the conductive block 34 is started, and the laser lamps 33 which are started faster the connecting column 31 moves are more, the area which is not welded is subjected to laser heating, different laser lamps 33 can be started to preheat the welding plate 11 according to the moving speed when the welding head 92 welds the welding plate 11 by arranging the sliding metal block 35 and the conductive block 34, the welding strength of the welding head 92 to the welding plate 11 is guaranteed, and the problem that the structural strength of the welding plate 11 does not reach the standard due to insufficient welding is avoided.

The heat treatment mechanism 4 comprises a light gathering cover 41, thermal expansion rubber 42, a reflecting plate 43, ceramic silicon rubber 44 and a metal hose 45; the light-gathering cover 41 is fixedly arranged at the lower end of the connecting column 31, and the upper surface of the inner end of the light-gathering cover 41 is fixedly provided with thermal expansion rubber 42; the thermal expansion rubber 42 is arc-shaped, and the lower end of the thermal expansion rubber 42 is fixedly connected to the inner surface of the reflector 43; the upper end of the reflecting plate 43 is hinged on the inner wall of the light-gathering shade 41, and ceramic silicon rubber 44 is arranged on the outer side of the reflecting plate 43; the density of the ceramic silicon rubber 44 is set from small to large from inside to outside, and the outer end of the ceramic silicon rubber 44 is fixedly connected with a metal hose 45; after the laser lamp 33 is turned on, the thermal expansion rubber 42 in the condensing hood 41 below is heated, because the thermal expansion rubber 42 is arc-shaped, the thermal expansion rubber 42 is stretched towards two ends under the heating action, namely, the reflecting plate 43 below is pushed to expand towards two sides, when the reflecting plate 43 contacts the ceramic silicon rubber 44 in the expansion process, the reflecting plate 43 is not expanded and transmits the high temperature on the reflecting plate 43 to the ceramic silicon rubber 44, because the density of the ceramic silicon rubber 44 is set from small to large from inside to outside, namely, the ceramic silicon rubber 44 at the outer end is rapidly heated and transmitted to the inner end of the ceramic silicon rubber 44, and because the outer end of the ceramic silicon rubber 44 is connected with the metal hose 45, namely the ceramic silicon rubber 44 transmits the heat into the metal hose 45, the laser lamp 33 can expand the irradiation heating area of the laser lamp 33 when the welding plate 11 is preheated by arranging the thermal expansion rubber 42 and the reflecting plate 43, further strengthen the heating effect of laser lamp 33, and set up the density of pottery silicon rubber 44 from inside to outside for from little to big, can realize the thermal fast transmission on reflector panel 43, strengthen heat transmission efficiency.

The heat preservation mechanism 5 is arranged on the left side of the welding head 92, and the heat preservation mechanism 5 comprises a fan 51, a ventilation pipe 52, a flexible metal plate 53, a baffle ring 54, a rotating shaft 55, a rotating rod 56, a sliding rod 57, a fixed rod 58 and a rotating block 59; the baffle ring 54 is fixedly arranged at the lower end of the welding head 92; the fan 51 is fixedly arranged on the upper surface of the left end of the welding block 91, and the lower end of the fan 51 is fixedly connected with a ventilation pipe 52; the ventilation pipe 52 is fixedly arranged on the lower surface of the left end of the welding block 91, the metal hose 45 is fixedly wound and connected on the outer surface of the ventilation pipe 52, and the flexible metal plate 53 is fixedly connected at the lower end of the ventilation pipe 52; a dispersing groove 531 is arranged in the flexible metal plate 53, and a sliding rod 57 is fixedly connected to the upper surface of the flexible metal plate 53; the dispersing groove 531 is communicated with the ventilating pipe 52, and the lower end of the dispersing groove 531 is provided with dispersing holes 532; the sliding rod 57 is connected inside the rotating block 59 in a sliding manner, and the upper end of the sliding rod 57 is connected with a rotating rod 56 in a rotating manner; the rotating block 59 is rotatably mounted at the lower end of the fixing rod 58; the inner end of the rotating rod 56 is fixedly connected to the rotating shaft 55; the upper end of the fixing rod 58 is fixedly arranged on the front surface of the welding block 91; the rotating shaft 55 is rotatably installed inside the welding block 91; when the welding head 92 is used for welding the welding plate 11, the metal hose 45 continuously transmits heat transmitted by the ceramic silicon rubber 44 into the ventilation pipe 52, and continuously heats the outer wall of the ventilation pipe 52 in the conveying process, at this time, because the fan 51 always inputs air into the ventilation pipe 52, the air is rapidly heated when passing through the ventilation pipe 52 and flows into the dispersion groove 531 in the flexible metal plate 53 and is dispersed through the dispersion holes 532 in the dispersion groove 531, at this time, the rotating rod 56 drives the sliding rod 57 to do circular rotation motion around the rotating shaft 55 due to the continuous rotation of the rotating shaft 55, the upper end of the sliding rod 57 is rotatably connected with the rotating rod 56, the lower end of the sliding rod 57 is slidably installed in the rotating block 59, and the rotating block 59 is rotatably installed on the fixed rod 58, namely, the sliding rod 57 does arc-shaped reciprocating motion while the rotating rod 56 rotates, namely, the flexible metal plate 53 is driven to do arc-shaped reciprocating motion, the hot air blown out from the dispersing holes 532 is not stopped on the welding plate 11, the welding plate 11 which is welded is kept warm, the baffle ring 54 arranged on the outer surface of the lower end of the welding head 92 prevents the hot air blown out from the flexible metal plate 53 from reaching the lower part of the welding head 92, the welding process can be protected, the slide rod 57 which is mechanically moved can realize the arc-shaped reciprocating motion of the flexible metal plate 53 in the welding process, the blown hot air is uniformly diffused to the welding plate 11 which is welded, the welding plate 11 is protected, the welding effect is prevented from being influenced by the structural damage of the welding position caused by the too large temperature contrast of the welding plate 11, meanwhile, the baffle ring 54 is arranged to prevent the hot air from being blown to the lower part of the welding head 92 by the flexible metal plate 53, and the reduction of the welding strength caused by the dust blown to the welding position in the welding process is prevented.

The fixing mechanism 6 comprises an air cylinder 61, an extrusion block 62, a traction wheel 63 and a rubber ring 64; the cylinder 61 is fixedly arranged at the lower end of the first hydraulic rod 8, and the extrusion block 62 is fixedly arranged at the lower end of the cylinder 61; the extrusion block 62 is arranged above the welding plate 11, and the traction wheels 63 are rotatably arranged inside two ends of the lower side of the extrusion block 62; the traction wheel 63 is arranged as a cam, and a rubber ring 64 is fixedly arranged on the outer surface of the traction wheel 63; when two welding plates 11 need to be welded, the welding plates 11 are placed on the upper surface of the base 1, after the welding plates are placed, the first hydraulic rod 8 is controlled to enable the extrusion block 62 to move downwards until the welding plates 11 are attached, when the extrusion block 62 is tightly attached to the welding plate 11, the traction wheel 63 starts to move relatively to pull the welding plate 11 towards the inner end, when the distance between the two welding plates 11 reaches a designated value, i.e., the welding head 92 starts to work to weld the gap, since the traction wheel 63 is provided as a cam, that is, when the two welded plates 11 approach each other, the traction wheel 63 will increase the extrusion force to the welded plates 11 intermittently, thereby greatly improving the traction strength to the welded plates 11, the rubber ring 64 is arranged on the outer surface of the traction wheel 63, so that the traction wheel 63 has a certain elastic force effect when the welding plate 11 is dragged, and the damage of the intermittently increased extrusion force of the traction wheel 63 on the outer surface of the welding plate 11 is avoided.

The lower end of the cylinder 61 is provided with a spacing adjusting mechanism 7; the distance adjusting mechanism 7 comprises a sliding groove 71, a mounting column 72, a splicing block 73 and a liquid storage groove 74; the sliding groove 71 is arranged in the extrusion block 62, a liquid storage groove 74 is arranged at the lower side of the sliding groove 71, and a mounting column 72 is arranged in the sliding groove 71; the liquid storage tank 74 is arranged in the base 1; the mounting column 72 is fixedly mounted at the lower end of the cylinder 61, and the lower end of the mounting column 72 is provided with a splicing block 73; the number of the splicing blocks 73 is multiple, and the splicing blocks 73 are in a circular truncated cone shape after being spliced; when two welding plate 11 begin to be close to, cylinder 61 begins to promote erection column 72 promptly and moves down along spout 71, splice 73 begins to move down and final inlay card between two welding plate 11 promptly, be round platform form after accomplishing because of splice 73 concatenation, so along with splice 73 move down the length different promptly mean two welding block 91 between the gap size difference, can realize deciding the size of welding gap according to welding plate 11's thickness size, thereby avoid welding plate 11 when thick welding gap undersize to influence the joint strength between two welding plate 11, and the storage cistern 74 in base 1 can move down for it provides suitable space when much at splice 73, avoid splice 73 to receive the damage.

A cooling groove 731 is formed in the splicing block 73; the cooling grooves 731 are arranged in a ring shape, the cooling grooves 731 are communicated with each other, and a diffusion groove 732 is arranged above the cooling grooves 731; the diffusion groove 732 is arranged at the lower end of the mounting column 72, liquid leakage holes 733 are uniformly arranged on the periphery of the diffusion groove 732, and a storage groove 734 is communicated with the upper side of the diffusion groove 732; a cooling liquid 735 is arranged in the storage tank 734; the cooling liquid 735 consists of water, a lubricant and a flame retardant; when the splicing block 73 is clamped between the two mounting plates and the welding head 92 starts to be welded, the splicing block 73 and the mounting column 72 are rapidly heated, at the moment, the cooling liquid 735 in the storage groove 734 in the mounting column 72 is heated under the high-temperature action of the mounting column 72, because the liquid has the properties of thermal expansion and cold contraction, namely, the cooling liquid 735 in the storage groove 734 enters the diffusion groove 732 below, the cooling liquid 735 in the diffusion groove 732 rapidly enters the cooling groove 731 in the splicing block 73 under the action of pressure to cool the splicing block 73, the splicing block 73 is prevented from deforming under the action of high temperature to influence the size of a gap between the two welding plates 11, so that the connection strength between the welding blocks is influenced, meanwhile, part of the cooling liquid flows out from the liquid leakage hole 733 under the action of pressure and is uniformly diffused to the outer surface of the splicing block 73 to be matched with the cooling liquid 735 in the splicing block 73, and the efficient cooling is realized, meanwhile, the cooling liquid 735 is composed of water, a lubricant and a flame retardant, so that the cooling liquid 735 on the outer surface of the splicing block 73 can provide a certain lubricating effect for the splicing block 73, and the clamping of the welding plate 11 of the splicing block 73 after welding is prevented from being difficult to release, so that the structural damage is avoided.

The specific working process is as follows:

when the welding machine works, when two welding plates need to be welded, the welding plates are placed on the upper surface of a base, after the welding machine is placed, a first hydraulic rod is controlled to enable an extrusion block to move downwards until the extrusion block is attached to the welding plates, when the extrusion block is tightly attached to the welding plates, a traction wheel starts to move relatively, the welding plates are pulled towards the inner ends, when the distance between the two welding plates reaches a specified value, a welding head starts to work to weld a gap, because the traction wheel is arranged to be a cam, when the two welding plates approach each other, the traction wheel can intermittently increase the extrusion force on the welding plates, the traction strength on the welding plates is greatly improved, and a rubber ring is arranged on the outer surface of the traction wheel, so that the traction wheel has a certain elastic effect when the welding plates are pulled, the outer surface of the welding plates is prevented from being damaged by the intermittently increased extrusion force of the traction wheel, the metal hose continuously transmits heat transmitted by the ceramic silicon rubber into the ventilation pipe, and continuously heats the outer wall of the ventilation pipe in the conveying process, at the moment, because the fan always inputs air into the ventilation pipe, namely the air can be rapidly heated when passing through the ventilation pipe and flows into the dispersion grooves in the flexible metal plate and is diffused through the dispersion holes in the dispersion grooves, at the moment, because the rotating shaft continuously rotates, the rotating rod drives the sliding rod to do circular rotation motion around the rotating shaft, the upper end of the sliding rod is rotationally connected with the rotating rod, the lower end of the sliding rod is slidably arranged in the rotating block, and the rotating block is rotatably arranged on the fixed rod, namely the sliding rod does arc reciprocating motion when the rotating rod rotates, namely the flexible metal plate is driven to do arc reciprocating motion, so that hot air blown out from the dispersion holes continuously hits on the welding plate, and heat preservation is carried out on the welded welding plate, and the baffle ring of soldered connection lower extreme surface mounting makes the hot-air that the flexible metal sheet blew off unable below the soldered connection of arriving, can protect the welding process, can realize at the welded in-process flexible metal sheet arc reciprocating motion through the slide bar that sets up mechanical motion, the even diffusion of hot-air that will blow off is to the welded plate of welding completion on, protect the welded plate, avoid the welded plate to cause the welding position structure to damage because of the temperature contrast is too big and influence the welding effect, the baffle ring that sets up simultaneously can avoid the flexible metal sheet to blow the hot-air to soldered connection below, prevent to blow the dust to the welding position in the welded in-process and reduce welding strength.

While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.