Laser welding device for metal components of concrete mixer

Abstract

The present invention relates to the technical field of laser welding, and in particular to a laser welding device for a concrete mixer metal component; comprising a base plate; a fixing mechanism for fixing a main shaft and a positioning mechanism for fixing a support are arranged at the upper end of the base plate, and a welding mechanism located in front of the positioning mechanism is also arranged on the base plate; the present invention fixes all required supports to the main shaft through the cooperation of a limiting mechanism and a fixing mechanism, and then performs welding processing, thereby reducing the frequency of disassembly and movement and the time of welding mechanism processing pauses, thereby improving the efficiency of welding processing, and the position of the support installed on the main shaft can be flexibly rotated and adjusted through an adjustment part, so as to be used for fixing mixing blades with different torsion angles, thereby improving the flexibility of the welding device and further improving the overall efficiency of metal component welding processing.

Description

Technical Field

[0001] The invention relates to the technical field of laser welding, and in particular to a laser welding device for metal components of a concrete mixer. Background Art

[0002] Concrete mixers are commonly used equipment on construction sites to mix cement, sand, gravel and other materials to make concrete; they are usually made up of a variety of metal components, such as a mixing paddle and a hopper, and the mixing paddle is composed of a mixing blade, a main shaft, a support and a ring (such as Figure 8 ), wherein the pillars are usually welded to the rings, and then multiple rings with pillars are equidistantly mounted on the main shaft, and the rings are fixed to the main shaft by welding; the mixing blades are fixed to two adjacent pillars by bolts to facilitate the subsequent maintenance and replacement of the mixing blades. In addition, the torsion angles of the mixing blades are different, and the angles between the corresponding pillars are also different.

[0003] The existing welding method requires that the circular ring with the pillar installed be successively mounted on the main shaft and moved to the corresponding position, and then the pillar and the circular ring are fixed by a clamp, and then the circular ring is welded to the main shaft by a welding device. After the welding is completed, the clamp is moved to the next position to fix and weld the next circular ring with the pillar installed.

[0004] However, the existing method of welding the ring to the main shaft has the following problems: the fixture needs to be frequently disassembled and moved, and the welding device needs to be stopped, which affects the overall efficiency of the welding process. The existing fixture for fixing the pillar is mainly for stirring blades with a single torsion angle. Therefore, when other stirring blades need to be installed, the fixture or welding device needs to be replaced to perform the fixed welding process of the pillar. This method cannot be flexibly converted and is difficult to quickly adapt to new production needs. It not only reduces the overall processing efficiency but also increases maintenance costs. Summary of the invention

[0005] In view of the above problems, an embodiment of the present application provides a laser welding device for metal components of a concrete mixer to solve the above-mentioned technical problems.

[0006] In order to achieve the above-mentioned purpose, the embodiment of the present application provides the following technical solution: The embodiment of the present application provides a laser welding device for metal components of a concrete mixer, comprising a base plate; the upper end of the base plate is provided with a fixing mechanism for fixing the main shaft and a positioning mechanism for fixing the pillar, and the base plate is also provided with a welding mechanism located in front of the positioning mechanism.

[0007] The positioning mechanism includes a support plate, and two left-right symmetrical support plates are fixedly installed on the upper end of the base plate. A C-shaped ring block opening forward is fixedly installed on the left end of the support plate. A limiting groove with a T-shaped cross-section is opened along the left end of the C-shaped ring block along its contour, and a C-shaped slip ring is slidably installed in the limiting groove. A mounting plate is arranged on the rear side of the upper end surface of the base plate between the two support plates.

[0008] The C-type slip ring and the mounting plate are both provided with limiting parts for fixing the corresponding pillars, an adjusting part for driving the C-type slip rings to rotate to adjust the corresponding pillar positions is provided between the two C-type slip rings, and a linkage part for fixing the limiting part on the C-type slip ring is provided between the limiting part and the adjusting part.

[0009] As a preferred embodiment, the limiting part includes a limiting block, and the left end of the mounting plate, the upper left end of the left C-type slip ring and the lower left end of the right C-type slip ring are all fixedly installed with the limiting block, and the left end of the limiting block is provided with a U-shaped groove cooperating with the pillar, and the upper end of the left limiting block, the lower end of the right limiting block and the rear end of the rear limiting block are all installed with a fixing plate, and the front and rear ends of the fixing plate on the C-type slip ring and the upper and lower ends of the fixing plate on the mounting plate are slidably installed with a support plate through a pair of sliding rods, and a partition plate is fixedly installed on the left side of the fixing plate, and a compression spring is installed between the support plate and the corresponding partition plate, and a pair of pressure columns cooperating with the mounting holes on the pillar are installed on the opposite surfaces of the two support plates on the same fixing plate, and a fixing part for fixing the support plate is provided on the fixing plate.

[0010] As a preferred embodiment, the fixing part includes a slide plate, and the slide plate is fixedly installed on the end of the support plate away from the corresponding limit block. The slide plate is slidably connected to the corresponding fixed plate. The fixed plate is provided with limit holes corresponding to the corresponding slide plates one by one, and the slide plate is provided with through holes corresponding to the limit holes. Limit columns are slidably installed in the limit holes. A connecting plate is commonly installed on the two limit columns on the same fixed plate away from the corresponding fixed plate, and a No. 1 tension spring is installed between the rear connecting plate and the corresponding fixed plate.

[0011] As a preferred embodiment, the adjustment part includes a bracket, which is commonly provided on two C-shaped slip rings, and the bracket has an inverted concave structure. The two vertical sections of the bracket are fixedly connected to the corresponding C-shaped slip rings, and two left-right symmetrical push plates are slidably installed at the lower end of the horizontal section of the bracket. The push plates have an inverted L-shaped structure, and plug rods are installed at the opposite ends of the two vertical sections of the two push plates. The plug rods slide through the corresponding vertical sections of the bracket and the C-shaped slip rings, and the C-shaped ring block is evenly provided with through holes that cooperate with the corresponding plug rods along its circumference. A No. 2 tension spring is installed between the push plate and the corresponding vertical section of the bracket, and a pushing piece for simultaneously moving the two push plates is provided on the bracket.

[0012] As a preferred solution, the linkage part includes a vertical pole, and the upper end of the right connecting plate is equipped with a vertical pole located on the rear side of the corresponding limit block, and the upper end of the vertical pole and the right end of the left connecting plate are fixedly equipped with a rectangular plate, and the lower end of the rectangular plate is fixedly equipped with a positioning plate, and the lower end of the positioning plate slides through the bracket, and locking rods are installed on the opposite back sides of the two horizontal sections of the two push plates, and the vertical sections of the positioning plate and the bracket are provided with circular holes that cooperate with the corresponding locking rods, and the circular holes penetrate the vertical sections and positioning plates of the corresponding brackets, and a No. 3 tension spring is installed between the lower end of the left rectangular plate and the bracket, and a compression spring is installed between the lower end of the right rectangular plate and the bracket.

[0013] As a preferred embodiment, the fixing mechanism includes a No. 1 vertical plate, which is fixedly installed on the right side of the upper end of the base plate, and a clamping block is evenly slidably installed on the left end of the No. 1 vertical plate in a circular distribution, and a No. 2 vertical plate is slidably installed on the left side of the upper end of the base plate, and a positioning column is installed on the right end of the No. 2 vertical plate, and a positioning groove is provided on the right end of the positioning column. The cross-section of the positioning groove is a truncated cone structure with a larger right side and a smaller left side. A driving unit for driving the No. 2 vertical plate to move is provided on the base plate, and an actuator for driving the clamping block to move is provided on the No. 1 vertical plate.

[0014] As a preferred embodiment, the execution part includes a slide groove, a slide groove corresponding to the clamping block is opened on the No. 1 vertical plate, the slide groove passes through the No. 1 vertical plate, a slider is slidably installed in the slide groove, the left end of the slider is fixedly connected to the corresponding clamping block, the right end of the No. 1 vertical plate is rotatably installed with a driving disk through a shaft column, the driving disk is opened with an arc groove corresponding to the slider, the right end of the slider is installed with a guide column sliding through the corresponding arc groove, the left end of the No. 1 vertical plate is fixedly installed with a No. 1 motor, and the output shaft of the No. 1 motor rotates through the No. 1 vertical plate and is connected to the shaft column through a belt drive.

[0015] As a preferred embodiment, the driving part includes a bearing plate, and two bearing plates symmetrical about the No. 2 vertical plate are installed on the upper end of the base plate. A screw rod is rotatably installed between the two bearing plates, and the screw rod is threadedly connected to the No. 2 vertical plate. The right end of the right bearing plate is fixedly installed with the No. 2 motor, and the output shaft of the No. 2 motor is fixedly connected to the screw rod.

[0016] As a preferred embodiment, the pushing member includes a pushing plate, and the horizontal section of the bracket is provided with a pushing plate, which slides through the bracket. Two left-right symmetrical connecting rods are hinged on the pushing plate, and one end of the connecting rod away from the pushing plate is hinged to the corresponding push plate.

[0017] As a preferred solution, the welding mechanism includes an electric slider, the upper end of the base plate is equipped with the electric slider, and the moving end of the electric slider is equipped with a welding robot arm.

[0018] The above one or more technical solutions in the embodiments of the present invention have at least one of the following technical effects: First, the present invention fixes all the required pillars to the main shaft through the cooperation of the limiting mechanism and the fixing mechanism, and then performs welding processing, thereby reducing the frequency of disassembly and movement and the time of welding mechanism processing pauses, thereby improving the efficiency of welding processing, and the position of the pillar installed on the main shaft can be flexibly rotated and adjusted through the adjustment part to fix the stirring blades with different torsion angles, thereby improving the flexibility of the welding device and further improving the overall efficiency of the metal component welding processing.

[0019] 2. The limiting mechanism provided in the present invention pre-fixes the corresponding pillar through the cooperation of the U-shaped groove of the limiting block and the pressure column and the compression spring, and then limits the movement of the pressure column through the fixing part, thereby realizing the fixation of multiple pillars to improve the efficiency of subsequent welding processing, and through the pressure column and the edge of the mounting hole of the pillar, the pressure is pressed against the ring on the pillar to ensure that it is concentric with the main shaft, thereby ensuring the consistency of the positions of multiple pillars, and then facilitating the subsequent installation of the stirring blades.

[0020] 3. The adjustment part provided in the present invention presses the stacking plate to make the insertion rod separate from the bracket, and then pushes the bracket to rotate the C-shaped slip ring, and the C-shaped slip ring drives the corresponding limit part and the fixed support to move and adjust the position, so as to flexibly adapt to the installation requirements of the stirring blades with different torsion angles, thereby further improving the overall welding efficiency of the metal assembly.

[0021] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0023] Figure 1 This is a schematic diagram of the three-dimensional structure of the welding process of metal components in this application.

[0024] Figure 2 for Figure 1 Schematic diagram of the structure after hiding the welding mechanism and metal components.

[0025] Figure 3 This is a schematic diagram of the structure of the linkage unit of this application.

[0026] Figure 4 This is a schematic diagram of the structure of the adjustment unit of this application.

[0027] Figure 5 This is a schematic diagram of the structure of the execution unit of this application.

[0028] Figure 6 This is a cross-sectional view of the fixing member of the present application and a schematic structural diagram of the present application.

[0029] Figure 7 This is a schematic diagram of the structure of the limiting part on the mounting plate of the present application.

[0030] Figure 8 It is a schematic diagram of the three-dimensional structure of the stirring paddle.

[0031] Figure numerals: 1, bottom plate; 2, positioning mechanism; 20, support plate; 21, C-type ring block; 22, C-type slip ring; 23, mounting plate; 24, limiting part; 240, limiting block; 241, fixing plate; 242, support plate; 243, compression spring; 244, pressing column; 5, fixing member; 50, slide plate; 51, limiting hole; 52, limiting column; 53, connecting plate; 54, first tension spring; 25, adjusting part; 250, bracket; 251, push plate; 252, plug rod; 253, through hole; 254, second tension spring; 6, pushing member; 60, pushing plate; 6 1. Connecting rod; 26. Linkage unit; 260. Vertical rod; 261. Rectangular plate; 262. Positioning plate; 263. Locking rod; 264. Round hole; 265. Tension spring No. 3; 266. Compression spring; 3. Fixing mechanism; 30. Vertical plate No. 1; 31. Clamping block; 32. Vertical plate No. 2; 33. Positioning column; 34. Actuator; 340. Slide; 341. Drive disk; 342. Arc groove; 343. Guide column; 344. Motor No. 1; 35. Drive unit; 350. Screw rod; 351. Motor No. 2; 4. Welding mechanism; 40. Electric slider; 41. Welding robot arm. DETAILED DESCRIPTION

[0032] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0033] like Figure 1 As shown, a laser welding device for metal components of a concrete mixer includes a base plate 1; a fixing mechanism 3 for fixing the main shaft and a positioning mechanism 2 for fixing the pillar are arranged at the upper end of the base plate 1, and a welding mechanism 4 located in front of the positioning mechanism 2 is also arranged on the base plate 1.

[0034] like Figure 1, Figure 2 and Figure 3 As shown, the positioning mechanism 2 includes a support plate 20, and two left-right symmetrical support plates 20 are fixedly installed on the upper end of the base plate 1. A C-shaped ring block 21 opening forward is fixedly installed on the left end of the support plate 20. A limiting groove with a T-shaped cross-section is opened along the left end of the C-shaped ring block 21 along its contour, and a C-shaped slip ring 22 is slidably installed in the limiting groove. A mounting plate 23 is arranged on the rear side of the upper end surface of the base plate 1 between the two support plates 20.

[0035] like Figure 1 , Figure 2 and Figure 3 As shown, a limiting portion 24 for fixing the corresponding pillar is provided on the C-type slip ring 22 and the mounting plate 23, an adjusting portion 25 for driving the C-type slip ring 22 to rotate to adjust the corresponding pillar position is provided between the two C-type slip rings 22, and a linkage portion 26 for fixing the limiting portion 24 on the C-type slip ring 22 is provided between the limiting portion 24 and the adjusting portion 25.

[0036] like Figure 1 As shown, the welding mechanism 4 includes an electric slider 40 , the electric slider 40 is installed on the upper end of the base plate 1 , and a welding robot arm 41 is installed on the moving end of the electric slider 40 .

[0037] During the specific operation, the circular ring with the pillar installed is first put on the main shaft, and then the main shaft is moved from front to back into the C-type slip ring 22, and then the main shaft is fixed by the fixing mechanism 3, and then the pillar is moved to the corresponding position of the limit part 24, and the pillar is fixed by the limit part 24, and then the electric slider 40 drives the welding robot arm 41 to move to the place where welding is required to weld the circular ring with the pillar installed to the main shaft.

[0038] When it is necessary to install stirring blades with different twisting angles, the positions of the left and right pillars need to be moved through the adjusting portion 25 , and the corresponding limiting portion 24 is fixed through the adjusting portion 25 after the position adjustment is completed.

[0039] like Figure 1 , Figure 2 and Figure 5 As shown, the fixing mechanism 3 includes a No. 1 vertical plate 30, the No. 1 vertical plate 30 is fixedly installed on the right side of the upper end of the base plate 1, and the left end of the No. 1 vertical plate 30 is slidably installed with a clamping block 31 in a circularly evenly distributed manner, and a No. 2 vertical plate 32 is slidably installed on the left side of the upper end of the base plate 1, and a positioning column 33 is installed on the right end of the No. 2 vertical plate 32. A positioning groove is provided at the right end of the positioning column 33, and the cross-section of the positioning groove is a truncated cone structure with a larger right side and a smaller left side. A driving part 35 for driving the No. 2 vertical plate 32 to move is provided on the base plate 1, and an execution part 34 for driving the clamping block 31 to move is provided on the No. 1 vertical plate 30.

[0040] like Figure 1 , Figure 2 and Figure 5 As shown, the execution part 34 includes a slide groove 340, and the slide groove 340 corresponding to the clamping block 31 is opened on the No. 1 vertical plate 30, and the slide groove 340 passes through the No. 1 vertical plate 30. A slider is slidably installed in the slide groove 340, and the left end of the slider is fixedly connected to the corresponding clamping block 31. The right end of the No. 1 vertical plate 30 is rotatably installed with a driving disk 341 through a shaft column, and the driving disk 341 is opened with an arc groove 342 corresponding to the slider, and the right end of the slider is installed with a guide column 343 that slides through the corresponding arc groove 342, and the left end of the No. 1 vertical plate 30 is fixedly installed with a No. 1 motor 344, and the output shaft of the No. 1 motor 344 rotates through the No. 1 vertical plate 30 and is connected to the shaft column through a belt drive.

[0041] like Figure 1 and Figure 2 As shown, the driving part 35 includes a bearing plate, and two bearing plates symmetrical about the second vertical plate 32 are installed on the upper end of the base plate 1. A screw rod 350 is rotatably installed between the two bearing plates, and the screw rod 350 is threadedly connected to the second vertical plate 32. A second motor 351 is fixedly installed on the right end of the right bearing plate, and the output shaft of the second motor 351 is fixedly connected to the screw rod 350.

[0042] During specific operation, after the spindle with a circular ring moves into the C-shaped slip ring 22, the spindle is manually moved to contact the left end of the No. 1 vertical plate 30, and then the No. 1 motor 344 drives the driving disk 341 to rotate through the shaft column, and the driving disk 341 drives the slider to move through the cooperation of the arc groove 342 and the guide column 343, and the slider drives the clamping block 31 to move the spindle to squeeze and fix the spindle, and then the No. 2 motor 351 drives the screw rod 350 to rotate, and the screw rod 350 drives the positioning column 33 to move toward the spindle through the No. 2 vertical plate 32, so that the inner wall of the positioning groove of the positioning column 33 contacts the spindle to press and position the spindle, so as to further improve the stability of the spindle.

[0043] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the limiting portion 24 includes a limiting block 240, the left end of the mounting plate 23, the upper left end of the left C-type slip ring 22 and the lower left end of the right C-type slip ring 22 are all fixedly installed with the limiting block 240, the left end of the limiting block 240 is provided with a U-shaped groove matched with the pillar, the upper end of the left limiting block 240, the lower end of the right limiting block 240 and the rear end of the rear limiting block 240 are all installed with a fixing plate 241, and the fixing plate 241 on the C-type slip ring 22 The front and rear ends and the upper and lower ends of the fixed plate 241 on the mounting plate 23 are slidably mounted with support plates 242 through a pair of sliding rods, a partition is fixedly mounted on the left side of the fixed plate 241, a compression spring 243 is installed between the support plate 242 and the corresponding partition, and a pair of pressure columns 244 that cooperate with the mounting holes on the pillar are installed on the opposite surfaces of the two support plates 242 on the same fixed plate 241, and a fixing part 5 for fixing the support plate 242 is provided on the fixed plate 241.

[0044] like Figure 2 , Figure 3 , Figure 4 , Figure 6 and Figure 7 As shown, the fixing member 5 includes a slide plate 50, and the slide plate 50 is fixedly installed at one end of the support plate 242 away from the corresponding limit block 240, and the slide plate 50 is slidably connected to the corresponding fixed plate 241. The fixed plate 241 is provided with limit holes 51 corresponding to the corresponding slide plates 50 one by one, and the slide plate 50 is provided with through holes corresponding to the limit holes 51. Limit columns 52 are slidably installed in the limit holes 51. The two limit columns 52 on the same fixed plate 241 are jointly installed with a connecting plate 53 at one end away from the corresponding fixed plate 241, and a No. 1 tension spring 54 is installed between the rear connecting plate 53 and the corresponding fixed plate 241.

[0045] During specific operation, the linkage part 26 drives the limiting columns 52 of the left and right limiting parts 24 away from the corresponding slide plate 50, and then moves the left and right pillars into the U-shaped grooves of the corresponding limiting blocks 240. During the movement of the pillars, they will collide with the corresponding pressure columns 244, and push the pressure columns 244 away from the corresponding pillars while compressing the compression springs 243 until the pressure columns 244 collide with the arc-shaped ends of the U-shaped grooves of the corresponding limiting blocks 240. Then, under the action of the compression springs 243, the corresponding pressure columns 244 are driven through the support plates 242 to collide with the mounting holes on the pillars to pre-fix the pillars.

[0046] Then, pull the connecting plate 53 on the rear side, and drive the corresponding limiting column 52 away from the corresponding slide plate 50 while stretching the No. 1 tension spring 54, and then move the middle pillar on the rear side to the U-shaped groove of the corresponding limiting block 240. Pre-fix this pillar in the same way as above, and then loosen the corresponding connecting plate 53. The connecting plate 53 moves toward the corresponding fixing plate 241 under the action of the No. 1 tension spring 54, so that the limiting column 52 passes through the corresponding through hole to the corresponding limiting hole 51, so as to limit the corresponding support plate 242, so as to keep the pressure column 244 pressing and fixing the corresponding pillar.

[0047] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the adjustment part 25 includes a bracket 250, which is commonly provided on the two C-type slip rings 22. The bracket 250 is in an inverted concave structure. The two vertical sections of the bracket 250 are fixedly connected to the corresponding C-type slip rings 22. Two left-right symmetrical push plates 251 are slidably installed at the lower end of the horizontal section of the bracket 250. The push plates 251 are in an inverted L-shaped structure. The opposite ends of the two vertical sections of the two push plates 251 are installed with plug rods 252. The plug rods 252 slide through the corresponding vertical sections of the bracket 250 and the C-type slip rings 22. The C-type ring block 21 is evenly provided with through holes 253 that cooperate with the corresponding plug rods 252 along its circumference. A No. 2 tension spring 254 is installed between the push plate 251 and the corresponding vertical section of the bracket 250. The bracket 250 is provided with a pushing piece 6 for simultaneously moving the two push plates 251.

[0048] like Figure 1 and Figure 2 As shown, the pushing member 6 includes a pushing plate 60, and the horizontal section of the bracket 250 is provided with the pushing plate 60, which slides through the bracket 250, and two left-right symmetrical connecting rods 61 are hinged on the pushing plate 60, and one end of the connecting rod 61 away from the pushing plate 60 is hinged to the corresponding push plate 251.

[0049] like Figure 1 , Figure 3 and Figure 4As shown, the linkage part 26 includes a vertical rod 260, and the upper end of the right connecting plate 53 is installed with the vertical rod 260 located on the rear side of the corresponding limit block 240, and the upper end of the vertical rod 260 and the right end of the left connecting plate 53 are fixedly installed with a rectangular plate 261, and the lower end of the rectangular plate 261 is fixedly installed with a positioning plate 262, and the lower end of the positioning plate 262 slides through the bracket 250, and the opposite back sides of the two horizontal sections of the two push plates 251 are installed with locking rods 263, and the positioning plate 262 and the vertical section of the bracket 250 are provided with circular holes 264 that cooperate with the corresponding locking rods 263, and the circular holes 264 penetrate the vertical section of the corresponding bracket 250 and the positioning plate 262, and a No. 3 tension spring 265 is installed between the lower end of the left rectangular plate 261 and the bracket 250, and a compression spring 266 is installed between the lower end of the right rectangular plate 261 and the bracket 250.

[0050] During operation, after the left and right pillars move into the U-shaped grooves of the corresponding limit blocks 240, the push plate 60 is pressed to move downward, and the push plate 60 drives the two push plates 251 to approach each other through the connecting rod 61 and stretch the second tension spring 254, and the push plate 251 drives the locking rod 263 to move out of the moving range of the positioning plate 262, and then pulls the left rectangular plate 261 upward and stretches the third tension spring 265, and the upward rectangular plate 261 drives the corresponding connecting plate 53 to move toward the corresponding fixed plate 241 through the vertical rod 260, so that the corresponding limit column 52 passes through the corresponding through hole and is inserted into the corresponding limit hole 5 1, to fix the left pillar, and at the same time press the right rectangular plate 261 downward to move and compress the compression spring 266, the downward rectangular plate 261 drives the corresponding limiting column 52 through the corresponding through hole to the corresponding limiting hole 51 through the corresponding connecting plate 53, to fix the right pillar, and then release the pushing plate 60, the push plate 251 moves back to back under the action of the second tension spring 254, the push plate 251 drives the corresponding locking rod 263 to pass through the corresponding circular hole 264 on the positioning plate 262 to the circular hole 264 on the bracket 250, thereby locking the position of the limiting column 52 to ensure the stability of the pillar being fixed.

[0051] When the positions of the left and right pillars need to be adjusted, the push plate 60 is manually pushed downward to drive the two push plates 251 to move closer to each other through the connecting rod 61 to drive the insertion rod 252 to separate from the bracket 250. At this time, the locking rod 263 has not separated from the positioning plate 262. Then the bracket 250 is pushed, and the bracket 250 drives the two C-type slip rings 22 to move. The C-type slip rings 22 drive the corresponding limit parts 24 and the fixed pillars to move and adjust the position. After the adjustment is completed, the push plate 60 is released, and the push plate 251 moves and resets under the action of the No. 2 tension spring 254, and drives the corresponding insertion rod 252 to be inserted into the corresponding through hole 253 to fix the C-type slip ring 22, thereby maintaining the stability of the adjusted limit part 24.

[0052] After welding is completed, the driving part 35 drives the second vertical plate 32 and the positioning column 33 to move to the left away from the main shaft, and then the execution part 34 drives the clamping block 31 away from the main shaft to release the fixation of the main shaft. After that, the limiting part 24 releases the fixation of the pillar, and then the welded metal component is manually moved to the left to make the pillar disengage from the corresponding U-shaped groove of the limiting block 240, and then the welded metal component is moved forward to move out of the C-shaped slip ring 22, and the above operation is repeated to continue the welding process of the mixer metal component.

[0053] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0054] In addition, the terms "first", "second", "number one", "number two" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second", "number one", "number two" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0055] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connect", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0056] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, all equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A laser welding device for metal components of a concrete mixer, comprising a bottom plate (1); characterized in that: The upper end of the base plate (1) is provided with a fixing mechanism (3) for fixing the main shaft and a positioning mechanism (2) for fixing the support column, and the base plate (1) is also provided with a welding mechanism (4) located in front of the positioning mechanism (2); wherein: The positioning mechanism (2) comprises a support plate (20), two left-right symmetrical support plates (20) are fixedly mounted on the upper end of the base plate (1), a C-shaped ring block (21) opened forward is fixedly mounted on the left end of the support plate (20), a limiting groove with a T-shaped cross section is provided along the left end of the C-shaped ring block (21), a C-shaped slip ring (22) is slidably mounted in the limiting groove, and a mounting plate (23) is arranged on the rear side of the upper end surface of the base plate (1) between the two support plates (20); A limiting portion (24) for fixing a corresponding pillar is provided on the C-shaped slip ring (22) and the mounting plate (23); an adjusting portion (25) for driving the C-shaped slip ring (22) to rotate so as to adjust the position of the corresponding pillar is provided between the two C-shaped slip rings (22); and a linkage portion (26) for fixing the limiting portion (24) on the C-shaped slip ring (22) is provided between the limiting portion (24) and the adjusting portion (25); The limiting part (24) comprises a limiting block (240); a fixing plate (241) is installed on the limiting block (240); a supporting plate (242) is slidably installed on the front and rear ends of the fixing plate (241) on the C-shaped slip ring (22) and the upper and lower ends of the fixing plate (241) on the mounting plate (23) via a pair of sliding rods; a pair of pressing columns (244) matching with mounting holes on the pillar are installed on the opposite surfaces of the two supporting plates (242) on the same fixing plate (241); and a fixing member (5) for fixing the supporting plate (242) is provided on the fixing plate (241); The fixing member (5) comprises a slide plate (50), the slide plate (50) is slidably connected to the corresponding fixing plate (241), and two limiting columns (52) on the same fixing plate (241) are jointly provided with a connecting plate (53) at one end away from the corresponding fixing plate (241); The adjusting part (25) comprises a bracket (250), wherein two vertical sections of the bracket (250) are fixedly connected to corresponding C-shaped slip rings (22), two left-right symmetrical push plates (251) are slidably mounted at the lower end of the horizontal section of the bracket (250), and plug rods (252) are mounted at opposite ends of the two vertical sections of the two push plates (251), and the plug rods (252) slide through the corresponding vertical section of the bracket (250) and the C-shaped slip ring (22), and a pushing member (6) for simultaneously moving the two push plates (251) is arranged on the bracket (250); The linkage part (26) comprises a vertical rod (260), a rectangular plate (261) is fixedly mounted on the upper end of the vertical rod (260) and the right end of the left connecting plate (53), a positioning plate (262) is fixedly mounted on the lower end of the rectangular plate (261), locking rods (263) are mounted on the opposite back surfaces of the two horizontal sections of the two push plates (251), a No. 3 tension spring (265) is mounted between the lower end of the left rectangular plate (261) and the bracket (250), and a compression spring (266) is mounted between the lower end of the right rectangular plate (261) and the bracket (250).

2. A laser welding device for metal components of a concrete mixer according to claim 1, characterized in that: The left end of the mounting plate (23), the upper left end of the left C-shaped slip ring (22) and the lower left end of the right C-shaped slip ring (22) are all fixedly mounted with a limit block (240); the left end of the limit block (240) is provided with a U-shaped groove that cooperates with the pillar; the upper end of the left limit block (240), the lower end of the right limit block (240) and the rear end of the rear limit block (240) are all installed with a fixed plate (241); a partition is fixedly mounted on the left side of the fixed plate (241); and a tension spring is installed between the support plate (242) and the corresponding partition.

3. A laser welding device for metal components of a concrete mixer according to claim 2, characterized in that: A slide plate (50) is fixedly installed on one end of the support plate (242) away from the corresponding limit block (240), a limit hole (51) corresponding to the corresponding slide plate (50) is opened on the fixed plate (241), a through hole corresponding to the limit hole (51) is opened on the slide plate (50), a limit column (52) is slidably installed in the limit hole (51), and a tension spring (54) is installed between the rear connecting plate (53) and the corresponding fixed plate (241).

4. The laser welding device for metal components of a concrete mixer according to claim 2, characterized in that: A bracket (250) is commonly provided on the two C-shaped slip rings (22); the bracket (250) is in an inverted concave structure; the push plate (251) is in an inverted L-shaped structure; through holes (253) cooperating with corresponding insertion rods (252) are evenly provided on the C-shaped ring block (21) along its circumference; and a second tension spring (254) is installed between the push plate (251) and the vertical section of the corresponding bracket (250).

5. The laser welding device for metal components of a concrete mixer according to claim 4, characterized in that: The upper end of the right connecting plate (53) is provided with a vertical rod (260) located at the rear side of the corresponding limit block (240), and the lower end of the positioning plate (262) slides through the bracket (250), and a circular hole (264) cooperating with the corresponding locking rod (263) is provided on the positioning plate (262) and the vertical section of the bracket (250), and the circular hole (264) penetrates the vertical section of the corresponding bracket (250) and the positioning plate (262).

6. The laser welding device for metal components of a concrete mixer according to claim 1, characterized in that: The fixing mechanism (3) comprises a first vertical plate (30), the first vertical plate (30) is fixedly installed on the right side of the upper end of the base plate (1), a clamping block (31) is evenly slidably installed on the left end of the first vertical plate (30) in a circumferentially distributed manner, a second vertical plate (32) is slidably installed on the left side of the upper end of the base plate (1), a positioning column (33) is installed on the right end of the second vertical plate (32), a positioning groove is provided on the right end of the positioning column (33), and the cross section of the positioning groove is a truncated cone structure with a larger right side and a smaller left side, a driving part (35) for driving the second vertical plate (32) to move is provided on the base plate (1), and an execution part (34) for driving the clamping block (31) to move is provided on the first vertical plate (30).

7. The laser welding device for metal components of a concrete mixer according to claim 6, characterized in that: The execution part (34) comprises a slide groove (340), a slide groove (340) corresponding to the clamping block (31) is provided on the No. 1 vertical plate (30), the slide groove (340) passes through the No. 1 vertical plate (30), a slider is slidably installed in the slide groove (340), the left end of the slider is fixedly connected to the corresponding clamping block (31), a driving disk (341) is rotatably installed on the right end of the No. 1 vertical plate (30) through a shaft column, an arc groove (342) corresponding to the slider is provided on the driving disk (341), a guide column (343) slidably passing through the corresponding arc groove (342) is installed on the right end of the slider, a No. 1 motor (344) is fixedly installed on the left end of the No. 1 vertical plate (30), and the output shaft of the No. 1 motor (344) rotates through the No. 1 vertical plate (30) and is connected to the shaft column through a belt drive.

8. The laser welding device for metal components of a concrete mixer according to claim 6, characterized in that: The driving part (35) comprises a bearing plate. Two bearing plates are installed at the upper end of the base plate (1) and are symmetrical with respect to the second vertical plate (32). A screw rod (350) is rotatably installed between the two bearing plates. The screw rod (350) is threadedly connected to the second vertical plate (32). A second motor (351) is fixedly installed at the right end of the right bearing plate. The output shaft of the second motor (351) is fixedly connected to the screw rod (350).

9. The laser welding device for metal components of a concrete mixer according to claim 4, characterized in that: The pushing member (6) comprises a pushing plate (60), and the horizontal section of the bracket (250) is provided with the pushing plate (60), the pushing plate (60) slides through the bracket (250), and two left-right symmetrical connecting rods (61) are hinged on the pushing plate (60), and one end of the connecting rod (61) away from the pushing plate (60) is hinged to the corresponding push plate (251).

10. The laser welding device for metal components of a concrete mixer according to claim 1, characterized in that: The welding mechanism (4) comprises an electric slider (40), the upper end of the base plate (1) is equipped with the electric slider (40), and the moving end of the electric slider (40) is equipped with a welding mechanical arm (41).

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