CN216990342U

CN216990342U - Automatic laser welding equipment of water pump impeller

Info

Publication number: CN216990342U
Application number: CN202123444536.7U
Authority: CN
Inventors: 魏刚; 魏辉; 汪强
Original assignee: Wuhan Ch Laser Technology Co ltd
Current assignee: Wuhan Ch Laser Technology Co ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-07-19
Anticipated expiration: 2031-12-31

Abstract

The application relates to an automatic laser welding equipment of water pump impeller belongs to water pump impeller laser welding equipment technical field, include: the laser welding unit comprises an industrial robot, a laser and a laser welding head connected with the laser through an optical cable, and the laser welding head is fixedly connected to the industrial robot so that the industrial robot drives the laser welding head to weld workpieces; the workpiece transfer unit comprises a plurality of workpiece transfer sliding tables positioned beside the industrial robot, and each workpiece transfer sliding table is provided with a rotary table for driving a workpiece to rotate; and the workpiece positioning fixture comprises workpiece positioning seats which are fixedly arranged on the rotary tables respectively. The sliding table is transferred to a plurality of work pieces and is cooperated with each other, and after all parts of the work pieces are welded into a whole on each work piece transferring sliding table, the last work piece transferring sliding table is welded into a final work piece product. The positioning precision is high, the welding quality is good, the operation is simple, the working efficiency is high, and the product competitiveness is improved.

Description

Automatic laser welding equipment for water pump impeller

Technical Field

The application relates to the technical field of water pump impeller laser welding equipment, in particular to automatic laser welding equipment for a water pump impeller.

Background

At present, manual welding, bump welding, laser welding and the like are mostly adopted in the welding of the impeller of the stamping water pump, but because the stamping impeller is formed by the stamping of a stainless steel plate, the elastic deformation of the steel plate is large, and the blades are mostly space-distorted blades, so that the positioning and clamping devices are difficult, the automatic welding degree is low, the welding efficiency is low, the dislocation quality of welding seam positions is poor, the rejection rate is high, the deformation and other problems are easy, and the production efficiency is low.

Disclosure of Invention

The embodiment of the application provides an automatic laser welding equipment of water pump impeller to solve the automatic welding degree of water pump impeller in the correlation technique and hang down, problem that welding efficiency is low.

The embodiment of the application provides an automatic laser welding equipment of water pump impeller, includes:

the laser welding unit comprises an industrial robot, a laser and a laser welding head connected with the laser through an optical cable, and the laser welding head is fixedly connected to the industrial robot so that the industrial robot drives the laser welding head to weld a workpiece;

the workpiece transfer unit comprises a plurality of workpiece transfer sliding tables positioned beside the industrial robot, each workpiece transfer sliding table is provided with a rotary table for driving a workpiece to rotate, and the workpiece transfer sliding tables drive the rotary tables to move in directions close to and far away from the industrial robot;

and the workpiece positioning fixture comprises workpiece positioning seats which are fixedly arranged on the rotary tables respectively.

In some embodiments: the workpiece positioning seat is of a circular plate-shaped structure, a first circular boss is coaxially arranged at the top of the workpiece positioning seat, a plurality of quick clamps are arranged around the workpiece positioning seat, a second circular boss is coaxially arranged at the top of the first circular boss, the diameter of the second circular boss is smaller than that of the first circular boss, and a first circular pressing plate is detachably connected to the top of the second circular boss.

In some embodiments: a first threaded hole is formed in the top of the second circular boss, a first through hole is formed in the first circular pressing plate, and the first circular pressing plate is connected with the second circular boss through a first bolt;

the top of the second circular boss is coaxially provided with a first circular positioning column, and the diameter of the first circular positioning column is smaller than that of the second circular boss.

In some embodiments: the workpiece positioning seat is of a circular plate-shaped structure, a third circular boss is coaxially arranged at the top of the workpiece positioning seat, a fourth circular boss is coaxially arranged at the top of the third circular boss, the diameter of the fourth circular boss is smaller than that of the third circular boss, and a second circular pressing plate is detachably connected to the top of the fourth circular boss.

In some embodiments: a second threaded hole is formed in the top of the fourth circular boss, a second through hole is formed in the second circular pressing plate, and the second circular pressing plate is connected with the fourth circular boss through a second bolt;

the bottom of the second circular pressing plate is coaxially provided with a second circular positioning column, and the diameter of the second circular positioning column is smaller than that of the second circular pressing plate.

In some embodiments: the workpiece positioning seat is of a circular plate-shaped structure, a fifth circular boss is coaxially arranged at the top of the workpiece positioning seat, a cylindrical pressing block is detachably arranged at the top of the fifth circular boss, and a third circular pressing plate is detachably connected to the top of the cylindrical pressing block.

In some embodiments: a third threaded hole is formed in the top of the fifth circular boss, a third through hole is formed in the cylindrical pressing block, and the cylindrical pressing block is connected with the fifth circular boss through a third bolt;

the top of the cylindrical pressing block is provided with two fourth threaded holes which are symmetrically arranged, the third circular pressing plate is provided with two fourth through holes which are symmetrically arranged, and the third circular pressing plate is connected with the cylindrical pressing block through two fourth bolts.

In some embodiments: the top of the fifth circular boss is coaxially provided with a third circular positioning column, the diameter of the third circular positioning column is smaller than that of the fifth circular boss, the bottom of the third circular pressing plate is coaxially provided with a fourth circular positioning column, and the diameter of the fourth circular positioning column is smaller than that of the third circular pressing plate.

In some embodiments: the workpiece positioning seat is of a circular plate-shaped structure, a sixth circular boss is coaxially arranged at the top of the workpiece positioning seat, a seventh circular boss is coaxially arranged at the top of the sixth circular boss, a fourth circular pressing plate is detachably arranged at the top of the seventh circular boss and is detachably connected with the seventh circular boss through a fifth bolt, and a plurality of pressing sheets are detachably connected to the periphery of the workpiece positioning seat.

In some embodiments: the device is characterized by further comprising a smoke purification unit, wherein the smoke purification unit comprises a sealing cover guardrail covering the top of the laser welding unit and the workpiece transfer unit, a smoke purifier sucking smoke is arranged in the sealing cover guardrail, and a workpiece inlet and outlet is formed in the sealing cover guardrail.

The beneficial effect that technical scheme that this application provided brought includes:

the embodiment of the application provides automatic laser welding equipment for the water pump impeller, and the automatic laser welding equipment for the water pump impeller is provided with a laser welding unit, wherein the laser welding unit comprises an industrial robot, a laser and a laser welding head connected with the laser through an optical cable, and the laser welding head is fixedly connected to the industrial robot so as to drive the laser welding head to weld a workpiece; the workpiece transferring unit comprises a plurality of workpiece transferring sliding tables located beside the industrial robot, each workpiece transferring sliding table is provided with a rotary table for driving the workpiece to rotate, the workpiece transferring sliding tables drive the rotary table to move in a direction close to and far away from the industrial robot, and the workpiece positioning fixture comprises workpiece positioning seats fixedly installed on the rotary tables respectively.

Consequently, the automatic laser welding equipment of water pump impeller of this application utilizes industrial robot drive laser welding head welding work piece, realizes quick, the high accuracy welding operation to the work piece. Meanwhile, a plurality of workpiece transfer sliding tables are arranged beside the industrial robot, rotary tables for driving the workpieces to rotate are arranged on the workpiece transfer sliding tables, and the workpieces on the rotary tables are moved in the direction close to and far away from the industrial robot by the workpiece transfer sliding tables. When a workpiece is welded, the workpiece transfer sliding table automatically conveys the workpiece on the rotary table to a welding station, and the rotary table rotates to realize the rotary welding of the laser welding head to the workpiece; when the workpieces are welded, the workpieces on the rotary table are automatically conveyed to the feeding and discharging station by the workpiece transfer sliding table. The welding device and the welding method improve the automation level of the workpiece and improve the welding quality and the welding efficiency of the workpiece.

In addition, this application all has set up the work piece positioning fixture of fixed work piece on the revolving stage on each work piece transfers the slip table, and each spare part of work piece realizes accurate positioning on the revolving stage through work piece positioning fixture fixing respectively. The workpiece transfer sliding tables are matched in a coordinated mode, and after all parts of the workpieces are welded into a whole on each workpiece transfer sliding table, the parts are welded into a final workpiece product on the last workpiece transfer sliding table. The positioning precision is high, the welding quality is good, the operation is simple, the working efficiency is high, and the product competitiveness is improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of an embodiment of the present application;

FIG. 2 is a schematic structural view of a workpiece positioning fixture according to a first embodiment of the present application;

FIG. 3 is a cross-sectional view taken along A-A of FIG. 2;

FIG. 4 is a schematic structural view of a workpiece positioning fixture according to a second embodiment of the present application;

FIG. 5 is a cross-sectional view taken along line B-B of FIG. 4;

FIG. 6 is a schematic view of a workpiece positioning jig according to a third embodiment of the present application;

FIG. 7 is a cross-sectional view taken along the line C-C of FIG. 6;

FIG. 8 is a schematic structural view of a workpiece positioning jig according to a fourth embodiment of the present application;

FIG. 9 is a cross-sectional view taken along line D-D of FIG. 8;

FIG. 10 is a schematic view of a workpiece positioning jig according to a fifth embodiment of the present application;

fig. 11 is a sectional view taken along the direction E-E in fig. 10.

Reference numerals:

1. a laser; 2. a laser welding head; 3. an industrial robot; 4. a workpiece transfer sliding table; 5. a turntable; 6. a smoke purifier; 7. a water cooling machine;

100. a workpiece positioning seat; 111. a first circular boss; 112. a second circular boss; 113. a first circular platen; 114. a first bolt; 115. a first circular positioning column; 116. a first quick clamp;

121. a third circular boss; 122. a fourth circular boss; 123. a second circular platen; 124. a second bolt; 125. a second circular positioning column;

131. a fifth circular boss; 132. a cylindrical briquette; 133. a third circular platen; 134. a fourth bolt; 135. a third bolt; 136. a third circular positioning column; 137. a fourth circular positioning column;

141. a sixth circular boss; 142. a seventh circular boss; 143. a fourth circular press plate; 144. a fifth bolt; 145. tabletting; 146. a second quick clamp;

201. an impeller front cover plate; 202. a bearing housing; 203. a rear cover plate of the impeller; 204. an impeller lower cover plate; 205. a blade; 206. a guide vane body; 207. and an upper cover plate of the impeller.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making creative efforts shall fall within the protection scope of the present application.

The embodiment of the application provides an automatic laser welding equipment of water pump impeller, and it can solve the automatic welding degree of water pump impeller low among the correlation technique, problem that welding efficiency is low.

Referring to fig. 1, an embodiment of the present application provides an automatic laser welding apparatus for a water pump impeller, including:

and the laser welding unit comprises an industrial robot 3 and a laser 1, and a laser welding head 2 connected with the laser 1 through an optical cable, wherein the laser welding head 2 is fixedly connected onto the industrial robot 3, so that the industrial robot 3 drives the laser welding head 2 to weld workpieces in multiple stations and at multiple angles. The laser 1 is preferably but not limited to a 3000W IPG fiber laser, and the water cooling machine 7 is matched with the laser 1, so that the requirement of the laser 1 on long-time (more than or equal to 24h) continuous work is met. And the water cooling machine 7 can effectively cool heat generating components such as a processing head, an optical fiber coupler and the like. The industrial robot 3 is preferably but not limited to an ABB IRB 2600 robot, the repeated positioning precision of which is 0.04mm, and the workpiece welding precision is greatly improved.

And the workpiece transfer unit comprises a plurality of workpiece transfer sliding tables 4 arranged beside the industrial robot 3, and the specific number of the workpiece transfer sliding tables 4 is specifically determined according to the welding process requirements of the workpieces. The work piece of this application embodiment is transferred slip table 4 and is equipped with six, and six work pieces are transferred slip table 4 and are installed on the weldment work platform, and six work pieces are transferred slip table 4 and are numbered one to six work pieces in proper order and transfer slip table 4, carry out six station substep welding to the work piece. The workpiece transfer sliding tables 4 numbered one to six are provided with rotary tables 5 for driving the rotation of the workpieces, and the workpiece transfer sliding tables 4 drive the rotary tables 5 to move in directions approaching and departing from the industrial robot 3.

And a workpiece positioning jig including workpiece positioning seats 100 fixedly installed on the respective turn tables 5. The workpiece positioning jig is used for fixing parts of each welding process of the workpiece on the turntable 5. Six work pieces are transferred slip table 4 and are all had last unloading station and welding station, and the unloading station is the work piece and is transferred the one end that slip table 4 kept away from industrial robot 3, and welding station is the one end that slip table 4 is close industrial robot 3 for the work piece. The workpiece parts to be welded are manually placed on the workpiece positioning fixture for positioning and clamping, then a start button of the workpiece transfer sliding table 4 is pressed, the workpiece transfer sliding table 4 automatically sends the workpiece to an appointed welding station, the PLC gives a signal, the industrial robot 3 operates the laser welding head 2 to weld, after welding is completed, the workpiece is automatically sent to the feeding and discharging station and is manually taken out, and the operation is cycled until the workpiece is welded, and then the next workpiece welding operation is continued.

The automatic laser welding equipment of water pump impeller of this application embodiment utilizes industrial robot 3 drive laser welder head 2 welding workpiece, realizes quick, the high accuracy welding operation to the work piece. Meanwhile, six workpiece transfer sliding tables 4 are arranged beside the industrial robot 3, rotary tables 5 for driving the workpieces to rotate are arranged on the six workpiece transfer sliding tables 4, and the workpieces on the rotary tables 5 are moved in the directions close to and far away from the industrial robot 3 by the workpiece transfer sliding tables 4. When a workpiece is welded, the workpiece transfer sliding table 4 automatically conveys the workpiece on the rotary table 5 to a welding station, and the rotary table 5 rotates to realize the rotary welding of the laser welding head 2 on the workpiece; when the workpiece is welded, the workpiece transfer sliding table 4 automatically conveys the workpiece on the rotary table 5 to the feeding and discharging station. The automatic welding device improves the automation level of the workpiece, and improves the welding quality and the welding efficiency of the workpiece.

In addition, this application has all set up the work piece positioning fixture of fixed work piece on revolving stage 5 on slip table 4 is transferred to each work piece, and each spare part of work piece realizes accurate positioning through the work piece positioning fixture is fixed on revolving stage 5 respectively. The plurality of workpiece transfer sliding tables 4 cooperate with each other to weld the parts of the workpiece integrally on each workpiece transfer sliding table 4, and then the workpiece is welded into a final workpiece product on the last workpiece transfer sliding table 4. The welding method and the welding device are high in positioning accuracy, good in welding quality, simple to operate and high in working efficiency, and improve product competitiveness.

In some alternative embodiments: referring to fig. 2 and 3, the embodiment of the application provides an automatic laser welding device for a water pump impeller, wherein a workpiece positioning seat 100 of the automatic laser welding device for a water pump impeller is of a circular plate-shaped structure, the workpiece positioning seat 100 is fixed on a workpiece transfer sliding table 4 numbered as one, and the workpiece transfer sliding table 4 numbered as one is used for transferring an impeller front cover plate 201 and a bearing sleeve 202 of a welding workpiece. The impeller front cover plate 201 is of a horn-shaped structure with a large caliber at one end and a small caliber at the other end, the bearing sleeve 202 is of a round tube-shaped structure, and an annular boss is arranged on the inner wall of one end of the bearing sleeve 202. The small-caliber end of the impeller front cover plate 201 is mutually attached to the outer wall of the bearing sleeve 202 and is mutually welded and connected.

The top of the workpiece positioning seat 100 is coaxially provided with a first circular boss 111 for positioning the impeller front cover plate 201, the diameter of the first circular boss 111 is approximately the same as the inner diameter of the end with the large caliber of the impeller front cover plate 201, and the end with the large caliber of the impeller front cover plate 201 is buckled on the first circular boss 111 to realize positioning in the horizontal direction. A plurality of first quick clamps 116 are arranged around the workpiece positioning seat 100, and the impeller front cover plate 201 is pressed tightly on the workpiece positioning seat 100 by the plurality of first quick clamps 116 to realize positioning in the height direction. The first quick clamps 116 are circumferentially arranged around the workpiece positioning seat 100 to quickly clamp, position and detach the impeller front cover plate 201.

The second circular boss 112 is coaxially arranged at the top of the first circular boss 111, the diameter of the second circular boss 112 is smaller than that of the first circular boss 111, the second circular boss 112 is located at the bottom of the bearing sleeve 202 to support the bearing sleeve 202, and the bearing sleeve 202 is positioned in the height direction. The top of the second circular boss 112 is detachably connected with a first circular pressing plate 113, the first circular pressing plate 113 is located in the bearing sleeve 202 and located at the top of the annular boss, so that the bearing sleeve 202 is pressed at the top of the second circular boss 112, and the bearing sleeve 202 is positioned in the height direction.

The top of the second circular boss 112 is provided with a first threaded hole, the first circular pressing plate 113 is provided with a first through hole, and the first circular pressing plate 113 and the second circular boss 112 are detachably connected through a first bolt 114. A first circular positioning pillar 115 is coaxially disposed at the top of the second circular boss 112, and the diameter of the first circular positioning pillar 115 is smaller than that of the second circular boss 112. The first circular positioning column 115 is located in the annular boss, the outer diameter of the first circular positioning column 115 is approximately the same as the inner diameter of the annular boss, and the first circular positioning column 115 is used for positioning the bearing sleeve 202 in the horizontal direction, so that the lap joint of the bearing sleeve 202 and the impeller front cover plate 201 is conveniently subjected to rotary laser welding to form a first assembly.

The welded first assembly is clamped on the workpiece transfer sliding table 4 with the number of two, a water pump blade welding tool (not shown in the figure) is used for clamping and positioning the blade 205 on the workpiece transfer sliding table 4 with the number of two, the blade 205 is welded on the first assembly in a rotating laser mode, and the first assembly and the blade 205 are welded to form a second assembly.

In some alternative embodiments: referring to fig. 4 and 5, the embodiment of the present application provides an automatic laser welding device for a water pump impeller, wherein a workpiece positioning seat 100 of the automatic laser welding device for a water pump impeller is of a circular plate-shaped structure, the workpiece positioning seat 100 is fixed on a workpiece transfer sliding table 4 numbered three, and the workpiece transfer sliding table 4 numbered three is used for transferring an impeller rear cover plate 203 and an impeller lower cover plate 204 of a welding workpiece. The impeller back cover plate 203 and the impeller lower cover plate 204 are both of a horn-shaped structure with a large caliber at one end and a small caliber at the other end. The end with the small caliber of the impeller back cover plate 203 and the end with the small caliber of the impeller lower cover plate 204 are coaxially welded and connected.

The top of the workpiece positioning seat 100 is coaxially provided with a third circular boss 121 for positioning the impeller back cover plate 203, the diameter of the third circular boss 121 is approximately the same as the inner diameter of the end with the large caliber of the impeller back cover plate 203, and the end with the large caliber of the impeller back cover plate 203 is buckled on the third circular boss 121 to realize the positioning in the horizontal direction. A fourth circular boss 122 is coaxially arranged on the top of the third circular boss 121, the diameter of the fourth circular boss 122 is smaller than that of the third circular boss 121, and the diameter of the fourth circular boss 122 is approximately the same as the inner diameter of the end of the impeller back cover plate 203 with a smaller caliber. The third circular boss 121 and the fourth circular boss 122 are used for realizing the horizontal positioning of the impeller back cover plate 203.

The top of the fourth circular boss 122 is detachably connected with a second circular pressing plate 123, the second circular pressing plate 123 is located in the lower impeller cover plate 204, the second circular pressing plate 123 is used for positioning the lower impeller cover plate 204 in the horizontal direction, and in addition, the second circular pressing plate 123 also clamps the lower impeller cover plate 204 on the top of the rear impeller cover plate 203 to position the lower impeller cover plate 204 in the height direction. A second threaded hole is formed in the top of the fourth circular boss 122, a second through hole is formed in the second circular pressing plate 123, and the second circular pressing plate 123 is connected with the fourth circular boss 122 through a second bolt 124.

A second circular positioning column 125 is coaxially arranged at the bottom of the second circular pressing plate 123, the diameter of the second circular positioning column 125 is smaller than that of the second circular pressing plate 123, the second circular positioning column 125 is used for positioning the impeller lower cover plate 204 in the horizontal direction, the second circular pressing plate 123 tightly presses the impeller lower cover plate 204 on the top of the impeller rear cover plate 203 to realize positioning in the height direction, and the lap joint of the impeller lower cover plate 204 and the impeller rear cover plate 203 is convenient to rotate and laser-weld to form a third component.

In some alternative embodiments: referring to fig. 6 and 7, an embodiment of the present application provides an automatic laser welding device for a water pump impeller, in which a workpiece positioning seat 100 of the automatic laser welding device for a water pump impeller is of a circular plate-shaped structure, the workpiece positioning seat 100 is fixed on a workpiece transfer sliding table 4 numbered four, the workpiece transfer sliding table 4 numbered four is used for transferring a second component and a third component of a welding workpiece, and the second component is located inside the third component and is coaxially arranged with each other. The direction of the end with the large caliber of the second component is the same as that of the end with the large caliber of the third component, the impeller front cover plate 201 of the second component and the impeller rear cover plate 203 of the third component are arranged at intervals, and the second component is connected with the third component through the blades 205.

The top of the workpiece positioning seat 100 is coaxially provided with a fifth circular boss 131 for positioning the second component, the top of the fifth circular boss 131 is detachably provided with a cylindrical pressing block 132, the diameter of the cylindrical pressing block 132 is approximately the same as the inner diameter of the bearing sleeve 202 of the second component, and the cylindrical pressing block 132 is located in the bearing sleeve 202. The cylindrical pressing block 132 is used for positioning the second assembly in the horizontal direction, and the cylindrical pressing block 132 is also used for pressing the second assembly on the fifth circular boss 131 to position the second assembly in the height direction.

The top of the cylindrical pressing block 132 is detachably connected with a third circular pressing plate 133, the third circular pressing plate 133 is located in the lower impeller cover plate 204, the third circular pressing plate 133 is used for achieving positioning of the third component in the horizontal direction, and in addition, the third circular pressing plate 133 compresses the third component on the top of the second component, and positioning of the third component in the height direction is achieved. The top of the fifth circular boss 131 is provided with a third threaded hole, a third through hole is formed in the cylindrical pressing block 132, and the cylindrical pressing block 132 is connected with the fifth circular boss 131 through a third bolt 135 so as to tightly press the second component to the top of the fifth circular boss 131, so that the second component is limited in the height direction. The top of the cylindrical pressing block 132 is provided with two fourth threaded holes which are symmetrically arranged, the third circular pressing plate 133 is provided with two fourth through holes which are symmetrically arranged, and the third circular pressing plate 133 is connected with the cylindrical pressing block 132 through two fourth bolts 134 so as to tightly press the third assembly at the top of the second assembly, so that the third assembly is limited in the height direction.

The top of the fifth circular boss 131 is coaxially provided with a third circular positioning column 136, the diameter of the third circular positioning column 136 is smaller than that of the fifth circular boss 131, and the outer diameter of the third circular positioning column 136 is substantially the same as the inner diameter of the annular boss. The third circular positioning column 136 is used for positioning the second assembly in the horizontal direction. A fourth circular positioning column 137 is coaxially disposed at the bottom of the third circular pressing plate 133, and the diameter of the fourth circular positioning column 137 is smaller than that of the third circular pressing plate 133. The fourth circular positioning column 137 is located in the impeller lower cover plate 204 and is attached to the inner wall of the impeller lower cover plate 204, so as to position the third component in the horizontal direction. After the second assembly and the third assembly are positioned in the horizontal direction and the height direction, the second assembly and the third assembly are connected through the blade 205 in a rotating laser welding mode to form a fourth assembly.

In some alternative embodiments: referring to fig. 8 and 9, an embodiment of the present application provides an automatic laser welding apparatus for a water pump impeller, in which a workpiece positioning seat 100 of the automatic laser welding apparatus for a water pump impeller is of a circular plate-shaped structure, the workpiece positioning seat 100 is fixed on a workpiece transfer sliding table 4 numbered five, the workpiece transfer sliding table 4 numbered five is used for transferring a fourth component and a guide vane body 206 of a welded workpiece, the guide vane body 206 is of a cylindrical structure, and the fourth component is located inside the guide vane body 206 and is coaxially arranged with each other.

The top of the workpiece positioning seat 100 is coaxially provided with a sixth circular boss 141 for positioning the fourth component, and the top of the sixth circular boss 141 is coaxially provided with a seventh circular boss 142 for positioning the fourth component. The diameter of the sixth circular boss 141 is greater than that of the seventh circular boss 142, the outer diameter of the sixth circular boss 141 is substantially the same as the inner diameter of the lower impeller cover plate 204, and the sixth circular boss 141 is located in the lower impeller cover plate 204 to position the fourth component in the horizontal direction. The outer diameter of the seventh circular boss 142 is substantially the same as the inner diameter of the bearing housing 202, and the seventh circular boss 142 is located in the bearing housing 202 to position the fourth component in the horizontal direction.

A fourth circular pressing plate 143 is detachably arranged on the top of the seventh circular boss 142, and the fourth circular pressing plate 143 is detachably connected with the seventh circular boss 142 through a fifth bolt 144. The seventh circular boss 142 is detachably connected with the seventh circular boss 142 through a fifth bolt 144, and the fourth component is pressed on the workpiece positioning seat 100, so that the fourth component is positioned in the height direction. A plurality of pressing sheets 145 are detachably connected to the periphery of the workpiece positioning seat 100, each pressing sheet 145 is of a fan-shaped structure, and the pressing sheets 145 tightly press the guide blade body 206 on the workpiece positioning seat 100, so that the guide blade body 206 is positioned in the horizontal direction and the height direction. After the positioning of the guide vane body 206 and the fourth assembly in the horizontal direction and the height direction is completed, the overlapped part between the guide vane body 206 and the fourth assembly is connected by the rotary laser welding to form a fifth assembly.

In some alternative embodiments: referring to fig. 10 and 11, in the embodiment of the present application, a workpiece positioning seat 100 of the automatic laser welding equipment for a water pump impeller is a circular plate-shaped structure, the workpiece positioning seat 100 is fixed on a workpiece transfer sliding table 4 numbered six, the workpiece transfer sliding table 4 numbered six is used for transferring a fifth assembly of a welding workpiece and an impeller upper cover plate 207, the impeller upper cover plate 207 is a horn-shaped structure with a large caliber at one end and a small caliber at the other end, and the impeller upper cover plate 207 is located inside a guide vane body 206 of the fifth assembly and is coaxially arranged with each other.

The workpiece positioning fixture of the embodiment of the present application has substantially the same structure as that of the above embodiment, and on the basis of the above embodiment, the workpiece positioning fixture of the embodiment of the present application is provided with a plurality of second quick clamps 146 that press the impeller upper cover plate 207 on the top of the workpiece positioning seat 100. The maximum diameter of the impeller upper cover plate 207 is substantially the same as the inner diameter of the guide vane body 206 and is attached to each other, the maximum outer diameter of the impeller upper cover plate 207 is the same as the maximum outer diameter of the impeller back cover plate 203, and the end of the impeller upper cover plate 207 with a large caliber is connected to the end of the impeller back cover plate 203 with a large caliber. The second quick clamp 146 presses the impeller upper cover plate 207 against the impeller rear cover plate 203, so that the impeller upper cover plate 207 is positioned in the height direction. The end with the large caliber of the impeller upper cover plate 207 and the end with the large caliber of the impeller rear cover plate 203 are connected through rotary laser welding and finally welded into a workpiece product.

In some alternative embodiments: referring to fig. 1, the embodiment of the present application provides an automatic laser welding device for a water pump impeller, further comprising a smoke purification unit, wherein the smoke purification unit comprises a sealing cover guardrail (not shown) covering the top of the laser welding unit and the workpiece transfer unit, a smoke purifier 6 sucking smoke is arranged in the sealing cover guardrail, the smoke generated by welding is covered by the sealing cover guardrail, and the smoke is purified after being sucked by the smoke purifier 6, so that the environmental pollution caused during welding is reduced. A workpiece inlet and outlet is formed in the guardrail of the sealing cover, so that the workpiece can be conveniently clamped and taken.

Principle of operation

The embodiment of the application provides automatic laser welding equipment for the water pump impeller, and the automatic laser welding equipment for the water pump impeller is provided with a laser welding unit, wherein the laser welding unit comprises an industrial robot 3, a laser 1 and a laser welding head 2 connected with the laser 1 through an optical cable, and the laser welding head 2 is fixedly connected to the industrial robot 3, so that the industrial robot 3 drives the laser welding head 2 to weld workpieces; the work piece transfer unit, this work piece transfer unit transfers slip table 4 including a plurality of work pieces that are located industrial robot 3 side, all is equipped with drive work piece pivoted revolving stage 5 on each work piece transfers slip table 4, and work piece transfer slip table 4 drive revolving stage 5 removes in order to be close and keep away from industrial robot 3's direction, work piece positioning fixture, this work piece positioning fixture include respectively fixed mounting at the work piece positioning seat 100 on each revolving stage 5.

Consequently, the automatic laser welding equipment of water pump impeller of this application utilizes industrial robot 3 drive laser welding head 2 welding workpiece, realizes quick, the high accuracy welding operation to the work piece. Meanwhile, a plurality of workpiece transfer sliding tables 4 are arranged beside the industrial robot 3, rotary tables 5 for driving workpieces to rotate are arranged on the workpiece transfer sliding tables 4, and the workpieces on the rotary tables 5 are moved in the direction close to and far away from the industrial robot 3 by the workpiece transfer sliding tables 4. When a workpiece is welded, the workpiece transfer sliding table 4 automatically conveys the workpiece on the rotary table 5 to a welding station, and the rotary table 5 rotates to realize the rotary welding of the laser welding head on the workpiece; when the workpiece is welded, the workpiece transfer sliding table 4 automatically conveys the workpiece on the rotary table 5 to the feeding and discharging station. The automatic welding device improves the automation level of the workpiece, and improves the welding quality and the welding efficiency of the workpiece.

In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are merely for convenience of describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly and encompass, for example, both fixed and removable coupling as well as integral coupling; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as the case may be.

It is noted that, in this application, relational terms such as "first" and "second," and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides an automatic laser welding equipment of water pump impeller which characterized in that includes:

the laser welding device comprises a laser welding unit and a control unit, wherein the laser welding unit comprises an industrial robot (3), a laser (1) and a laser welding head (2) which is connected with the laser (1) through an optical cable, and the laser welding head (2) is fixedly connected to the industrial robot (3) so that the industrial robot (3) drives the laser welding head (2) to weld a workpiece;

the workpiece transfer unit comprises a plurality of workpiece transfer sliding tables (4) positioned beside the industrial robot (3), each workpiece transfer sliding table (4) is provided with a rotary table (5) for driving a workpiece to rotate, and the workpiece transfer sliding tables (4) drive the rotary tables (5) to move in the direction close to and far away from the industrial robot (3);

the workpiece positioning fixture comprises workpiece positioning seats (100) which are fixedly arranged on the rotary tables (5) respectively.

2. The automatic laser welding apparatus for a water pump impeller according to claim 1, wherein:

the workpiece positioning seat (100) is of a circular plate-shaped structure, a first circular boss (111) is coaxially arranged at the top of the workpiece positioning seat (100), a plurality of first quick clamps (116) are arranged around the workpiece positioning seat (100), a second circular boss (112) is coaxially arranged at the top of the first circular boss (111), the diameter of the second circular boss (112) is smaller than that of the first circular boss (111), and a first circular pressing plate (113) is detachably connected to the top of the second circular boss (112).

3. The automatic laser welding apparatus for a water pump impeller according to claim 2, wherein:

a first threaded hole is formed in the top of the second circular boss (112), a first through hole is formed in the first circular pressing plate (113), and the first circular pressing plate (113) is connected with the second circular boss (112) through a first bolt (114);

the top of the second circular boss (112) is coaxially provided with a first circular positioning column (115), and the diameter of the first circular positioning column (115) is smaller than that of the second circular boss (112).

4. The automatic laser welding apparatus for a water pump impeller according to claim 1, wherein:

the workpiece positioning seat (100) is of a circular plate-shaped structure, a third circular boss (121) is coaxially arranged at the top of the workpiece positioning seat (100), a fourth circular boss (122) is coaxially arranged at the top of the third circular boss (121), the diameter of the fourth circular boss (122) is smaller than that of the third circular boss (121), and a second circular pressing plate (123) is detachably connected to the top of the fourth circular boss (122).

5. The automatic laser welding equipment for the water pump impeller as claimed in claim 4, wherein:

a second threaded hole is formed in the top of the fourth circular boss (122), a second through hole is formed in the second circular pressing plate (123), and the second circular pressing plate (123) is connected with the fourth circular boss (122) through a second bolt (124);

a second circular positioning column (125) is coaxially arranged at the bottom of the second circular pressing plate (123), and the diameter of the second circular positioning column (125) is smaller than that of the second circular pressing plate (123).

6. The automatic laser welding equipment for the water pump impeller as claimed in claim 1, wherein:

the workpiece positioning seat (100) is of a circular plate-shaped structure, a fifth circular boss (131) is coaxially arranged at the top of the workpiece positioning seat (100), a cylindrical pressing block (132) is detachably arranged at the top of the fifth circular boss (131), and a third circular pressing plate (133) is detachably connected to the top of the cylindrical pressing block (132).

7. The automatic laser welding apparatus for a water pump impeller according to claim 6, wherein:

a third threaded hole is formed in the top of the fifth circular boss (131), a third through hole is formed in the cylindrical pressing block (132), and the cylindrical pressing block (132) is connected with the fifth circular boss (131) through a third bolt (135);

the top of the cylindrical pressing block (132) is provided with two symmetrically arranged fourth threaded holes, two symmetrically arranged fourth through holes are formed in the third circular pressing plate (133), and the third circular pressing plate (133) is connected with the cylindrical pressing block (132) through two fourth bolts (134).

8. The automatic laser welding equipment for the water pump impeller as claimed in claim 6, wherein:

the top of the fifth circular boss (131) is coaxially provided with a third circular positioning column (136), the diameter of the third circular positioning column (136) is smaller than that of the fifth circular boss (131), the bottom of the third circular pressing plate (133) is coaxially provided with a fourth circular positioning column (137), and the diameter of the fourth circular positioning column (137) is smaller than that of the third circular pressing plate (133).

9. The automatic laser welding apparatus for a water pump impeller according to claim 1, wherein:

the workpiece positioning seat (100) is of a circular plate-shaped structure, a sixth circular boss (141) is coaxially arranged at the top of the workpiece positioning seat (100), a seventh circular boss (142) is coaxially arranged at the top of the sixth circular boss (141), a fourth circular pressing plate (143) is detachably arranged at the top of the seventh circular boss (142), the fourth circular pressing plate (143) is detachably connected with the seventh circular boss (142) through a fifth bolt (144), and a plurality of pressing plates (145) are detachably connected around the workpiece positioning seat (100).

10. The automatic laser welding apparatus for a water pump impeller according to claim 1, wherein:

the device is characterized by further comprising a smoke purification unit, wherein the smoke purification unit comprises a sealing cover guardrail covering the top of the laser welding unit and the workpiece transfer unit, a smoke purifier (6) sucking smoke is arranged in the sealing cover guardrail, and a workpiece inlet and a workpiece outlet are formed in the sealing cover guardrail.