CN113601114B - Machining process for collector ring of high-power generator - Google Patents
Machining process for collector ring of high-power generator Download PDFInfo
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- CN113601114B CN113601114B CN202110901737.0A CN202110901737A CN113601114B CN 113601114 B CN113601114 B CN 113601114B CN 202110901737 A CN202110901737 A CN 202110901737A CN 113601114 B CN113601114 B CN 113601114B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The invention relates to the technical field of generator manufacturing, and discloses a processing technology of a collector ring of a high-power generator; the method comprises the following steps: preparing a copper bar raw material with the diameter of 18-32 mm according to the size requirement of the cross section of the collector ring to be processed; preparing a section extrusion die and a drawing die which are matched with the section size of the collecting ring; a profile extruder is adopted, so that the prepared copper bar raw material penetrates through a first forming hole of an extrusion die, and the profile raw material is obtained; then, the obtained section bar raw material penetrates through a second forming hole of the drawing die by adopting a drawing machine to obtain a standard section bar raw material; then, rolling and bending the standard section bar raw material into a circular ring shape on the width surface along the length direction of the section bar by adopting a rolling and bending machine; then performing crevasse welding; the technical scheme can improve the material utilization rate and reduce the production cost of the collecting ring; the risk factors in the production process can be reduced.
Description
Technical Field
The invention relates to the technical field of generator manufacturing, in particular to a processing technology of a collector ring of a high-power generator.
Background
With the increasingly prominent energy problem, the development speed of hydraulic power generation and wind power generation is faster and faster. The demand for high power generator sets is on the rise. The collector ring is used as a conductive component in the generator set and has important significance and effect after the beginning and the end. The processing and manufacturing capability and the cost competitiveness of the collecting ring are also indispensable in the manufacturing process of the generator.
The common collecting ring comprises steel, copper, aluminum and the like, and the existing collecting ring processing technology mostly adopts a forging technology to forge cast ingots of the steel, the copper, the aluminum and the like into rings and then machine the rings into final products.
For the processing of the collecting ring, the forging process mainly has the following problems: firstly, the material utilization rate is low, the site investment is large, and the production cost is high; secondly, the specification range of the product which can be processed is small; thirdly, the forging process is noisy and dangerous, and is easy to cause trauma accidents.
The existing welding tool is low in welding efficiency and is not favorable for large-batch production; the welding precision is low, so that the quality of a welding seam is poor, and the welding strength cannot be ensured.
Disclosure of Invention
The technical problem solved by the invention is as follows: the novel production process of the collecting ring is provided, the material utilization rate is improved, and the production cost of the collecting ring is reduced; the production of collecting ring products with different specifications is convenient to convert; reducing the risk factors in the production process.
The technical scheme of the invention is as follows:
a processing technology for a collector ring of a high-power generator comprises the following steps:
s1: stock preparation
Preparing a copper bar raw material with the diameter of 18-32 mm according to the size requirement of the cross section A and B of the collector ring to be processed; preparing a section extrusion die and a drawing die which are matched with the section size of the collecting ring;
the extrusion die and the drawing die are both made of high-strength alloy materials; the center of the drawing die is provided with a second forming hole A and B; the center of the extrusion die is provided with a first forming hole C x D; c is A + 0.8-8 mm; d is B + 0.8-8 mm;
s2: extrusion and drawing
A profile extruder is adopted, so that the copper bar raw material prepared in the step S1 penetrates through a first forming hole of an extrusion die at a constant speed to obtain a profile raw material;
then, the obtained section raw material penetrates through a second forming hole of the drawing die at a constant speed by adopting a drawing machine to obtain a standard section raw material; sawing off the standard section raw material according to the circumference of the collector ring to be processed;
s3: roll bending
Rolling and bending the standard section material sawn in the step S2 into a circular ring shape on a width surface along the length direction of the section material by adopting a roll bending machine; wherein, the roll bending machine adopts a special roll bending die;
s4: beveling and welding
Processing a welding groove which is matched with the standard section bar according to the thickness and the width of the raw material of the standard section bar;
welding the welding groove on the welding tool by adopting electric arc welding to obtain a collecting ring rough blank;
s5: post-weld treatment
Polishing the welding seam of the rough blank of the collecting ring welded in the step S4 for 5-18 min to obtain the collecting ring;
s6: machining
And machining mounting hole positions on the obtained collector ring by using machining equipment.
Further, the special roll bending die in the roll bending step comprises: the middle rolling ring with the side wall in contact with the width surface of the standard profile raw material is arranged on an upper limiting ring of a roll bending die at the upper end of the middle rolling ring and is arranged on a lower limiting ring of the roll bending die at the lower end of the middle rolling ring, and the two limiting rings are respectively arranged on the middle rolling ring and the roll bending die and on the connecting part of the middle rolling ring and the lower limiting ring of the roll bending die. The upper limiting ring, the lower limiting ring and the backing ring are arranged, so that the deviation of the middle rolling ring can be effectively prevented, and the accuracy of roll bending is ensured.
Furthermore, the flatness and the straightness of the raw materials of the standard section obtained in the extruding and drawing steps are less than or equal to 0.2 mm. The flatness and the straightness can be limited, so that two end parts of the circular copper ring formed by roll bending can be accurately contacted, and the welding efficiency can be improved.
Further, the extrusion current of the profile extruder in the extrusion and drawing steps: less than or equal to 500A; the rotating speed of the extrusion wheel is 5-10 r/min.
The profile raw material with better quality can be produced by setting reasonable extrusion current and rotating speed.
Further, the drawing force of the drawing machine in the extruding and drawing steps is 10 t-50 t; the drawing speed is 0.3 to 1.5 m/s.
The flatness and the straightness of the obtained standard section raw material can be ensured to be small by setting reasonable drawing force and drawing speed, and the production efficiency of subsequent roll bending and welding is convenient to improve.
Furthermore, the beveling and the welding bevel in the welding step are V-shaped bevels with symmetrical double faces; wherein the included angle of the V-shaped groove is 80-120 degrees.
The double-sided V-shaped groove is convenient to weld, can ensure the symmetry of a weld joint, and is beneficial to improving the welding strength.
Furthermore, the welding tool in the beveling and welding step comprises a U-shaped clamp for clamping a collecting ring rough blank, a welding device arranged above the U-shaped clamp for welding the collecting ring rough blank, and a control module electrically connected with the U-shaped clamp and the welding device;
the U-shaped clamp comprises a disc fixed on a horizontal plane, a U-shaped rotating support which is perpendicular to the horizontal plane and is movably installed on the disc, a first rotating motor arranged at the joint of the middle part of the lower end of the U-shaped rotating support and the disc, two groups of pneumatic clamps which are horizontally arranged on two sides of the U-shaped rotating support, and two adjusting devices arranged on two sides of the lower end of the U-shaped rotating support;
the pneumatic clamp comprises a pneumatic push-pull rod and a clamp, wherein the pneumatic push-pull rod is horizontally arranged on the side surface of the U-shaped rotating support, the telescopic end of the pneumatic push-pull rod penetrates through the U-shaped rotating support, and the clamp is arranged at the telescopic end of the pneumatic push-pull rod and connected with the collecting ring rough blank;
the clamp comprises two arc-shaped clamping plates in plane contact with the two sides of the collecting ring rough blank, a supporting plate movably arranged between the arc-shaped clamping plates, a flexible rubber plate arranged on the supporting plate and in contact with the arc surface of the collecting ring rough blank, springs uniformly arranged between the flexible rubber plate and the supporting plate, and bearings uniformly arranged on the contact surface of the flexible rubber plate and the collecting ring rough blank.
The collecting ring can be clamped through the arrangement of the pneumatic clamp; the flexible rubber plate can clamp the cambered surface of the collecting ring in a good fit manner under the support of the spring, the bearing can reduce the resistance of a clamping surface, and the collecting ring is limited by combining the arc-shaped clamping plates on the two sides; the first rotating motor can rotate the U-shaped rotating bracket to turn over the welding surface.
Further, the adjusting device comprises a mounting piece arranged on the side part of the lower end of the U-shaped rotating bracket, an adjusting rotary drum movably arranged on the mounting piece and in contact with the cambered surface of the rough blank of the collecting ring, and a second rotating motor arranged on the mounting piece and used for providing power for the adjusting rotary drum;
the surface of the adjusting rotary drum is provided with rubber bulges for increasing friction force.
The second rotating motor adjusts the rotary drum rotation through the drive for adjust the rotary drum and rotate and treat the collecting ring of welding, make the accurate butt joint of upper end slope department and welding set, be convenient for implement the welding.
Furthermore, the welding device comprises a bolting fixing plate fixed above the U-shaped rotating support, a threaded lead screw horizontally arranged on the bolting fixing plate and positioned right above the collecting ring rough blank, a movable connecting piece movably arranged on the threaded lead screw, a sliding rail vertically arranged right below the movable connecting piece, an electric arc welding gun head movably arranged in the sliding rail, and an infrared distance measuring assembly arranged right below the sliding rail.
The position from the arc welding gun head to the welding groove can be measured through the infrared distance measuring assembly, and the adjustment can be realized according to the measured distance through moving the connecting piece and the sliding rail; accurate welding can be realized by combining the rotation of the adjusting rotary drum and the collecting ring to be welded.
The invention has the beneficial effects that: according to the processing technology of the collector ring of the high-power generator, the standard section bar is obtained through extrusion and drawing of the copper bar, and the collector ring is obtained through roll bending and welding production of the standard section bar; the whole process is simple in process, high in material utilization rate and low in cost.
Compared with the conventional forging process for producing the collecting ring, the technical scheme has the advantages that the flexibility is higher, the specification range of the collecting ring can be larger, and the production is more convenient; in the production process, compared with a forging process, the process has the advantages of low noise, controllable danger and difficult occurrence of production accidents.
And provide dedicated production welding set of this scheme and welding jig, can improve the accurate nature of welded on the one hand, on the other hand can improve welding efficiency.
Drawings
FIG. 1 is a schematic view of the structure of an extrusion die in accordance with example 1 of the present invention;
FIG. 2 is a schematic view of a drawing die in example 1 of the present invention;
FIG. 3 is a schematic structural diagram of a special roll bending die in embodiment 2 of the present invention;
FIG. 4 is a schematic structural diagram of a welding tool in embodiment 3 of the present invention;
FIG. 5 is a schematic structural diagram of an adjusting device and a clamp in embodiment 3 of the invention;
the device comprises a 1-middle rolling ring, a 2-upper limiting ring of a roll bending die, a 3-lower limiting ring of the roll bending die, a 4-backing ring, a 5-U-shaped clamp, a 50-disc, a 51-U-shaped rotating bracket, a 52-first rotating motor, a 53-pneumatic clamp, a 54-adjusting device, a 530-pneumatic push-pull rod, a 531-arc clamping plate, a 532-supporting plate, a 533-flexible rubber plate, a 534-spring, a 540-mounting piece, a 541-adjusting rotary drum, a 542-second rotating motor, a 60-bolting fixing plate, a 61-threaded screw rod, a 62-moving connecting piece, a 63-sliding track, a 64-arc welding gun head and a 65-infrared distance measuring component.
Detailed Description
Example 1:
a processing technology for a collector ring of a high-power generator comprises the following steps:
s1: stock preparation
Preparing a copper bar raw material with the diameter of 18mm according to the size requirement of the cross section A and B of the collector ring to be processed; preparing a section extrusion die and a drawing die which are matched with the section size of the collecting ring;
the extrusion die and the drawing die are both made of high-strength alloy materials; a second forming hole A and B is formed in the center of the drawing die; the center of the extrusion die is provided with a first forming hole C x D; c is A +0.8 mm; d is B +0.8 mm;
s2: extrusion and drawing
A profile extruder is adopted, so that the copper bar raw material prepared in the step S1 penetrates through a first forming hole of an extrusion die at a constant speed to obtain a profile raw material;
extrusion current of profile extruder: 300A; the rotating speed of the extrusion wheel is 5 r/min;
then, the obtained section raw material penetrates through a second forming hole of the drawing die at a constant speed by adopting a drawing machine to obtain a standard section raw material; sawing off the standard section bar raw material according to the circumference of the collecting ring to be processed;
the drawing force of the drawing machine is 10 t; the drawing speed is 0.3 m/s; the flatness and the straightness of the raw materials of the standard sectional material are both 0.08 mm.
S3: roll bending
Rolling and bending the standard section bar raw material sawn off in the step S2 into a circular ring shape along the length direction of the section bar on the width surface by adopting a roll bending machine;
s4: beveling and welding
Processing a welding groove which is matched with the standard section according to the thickness and the width of the raw material of the standard section; welding the welding groove by adopting electric arc welding to obtain a collecting ring rough blank;
the welding groove is a V-shaped groove with symmetrical double faces; wherein the included angle of the V-shaped groove is 80 degrees;
s5: post-weld treatment
Polishing the welding seam of the rough blank of the collecting ring welded in the step S4 for 5min to obtain the collecting ring;
s6: machining
And machining mounting hole positions on the obtained collector ring by using machining equipment.
Example 2:
the special roll bending die comprises: the side wall of the middle rolling ring 1 is in contact with the width surface of a standard section bar raw material, the upper limiting ring 2 of a roll bending die is arranged at the upper end of the middle rolling ring 1, the lower limiting ring 3 of the roll bending die is arranged at the lower end of the middle rolling ring 1, and the two backing rings 4 are respectively arranged at the connecting positions of the middle rolling ring 1 and the upper limiting ring 2 of the roll bending die and the lower limiting ring 3 of the middle rolling ring 1 and the roll bending die.
The difference from example 1 is:
the processing technology of the collector ring of the high-power generator by applying the special roll bending die comprises the following steps:
s1: stock preparation
Preparing a copper bar raw material with the diameter of 32mm according to the size requirement of the section A and B of the collector ring to be processed; preparing a section extrusion die and a drawing die which are matched with the section size of the collecting ring;
the extrusion die and the drawing die are both made of high-strength alloy materials; a second forming hole A and B is formed in the center of the drawing die; the center of the extrusion die is provided with a first forming hole C and D; c is A +8 mm; d is B +8 mm;
s2: extrusion and drawing
A profile extruder is adopted, so that the copper bar raw material prepared in the step S1 penetrates through a first forming hole of an extrusion die at a constant speed to obtain a profile raw material;
extrusion current of profile extruder: 400A; the rotating speed of the extrusion wheel is 10 r/min;
then, the obtained section raw material penetrates through a second forming hole of the drawing die at a constant speed by adopting a drawing machine to obtain a standard section raw material; sawing off the standard section raw material according to the circumference of the collector ring to be processed;
the drawing force of the drawing machine is 50 t; the drawing speed is 1.5 m/s; the flatness and the straightness of the standard section raw material are both 0.2 mm.
S3: roll bending
Rolling and bending the standard section material sawn in the step S2 into a circular ring shape on the width surface along the length direction of the section material by adopting a roll bending machine and a special roll bending die; specifically, the middle rolling ring 1 is in width surface contact, the upper limiting ring 2 and the lower limiting ring 3 are in contact with two sides respectively, and standard profile raw materials are rolled.
S4: beveling and welding
Processing a welding groove which is matched with the standard section bar according to the thickness and the width of the raw material of the standard section bar; welding the welding groove on the welding tool by adopting electric arc welding to obtain a collecting ring rough blank;
the welding groove is a V-shaped groove with symmetrical double faces; wherein the included angle of the V-shaped groove is 120 degrees;
s5: post-weld treatment
Polishing the welding seam of the rough blank of the collecting ring welded in the step S4 for 18min to obtain the collecting ring;
s6: machining
And machining installation hole sites on the obtained collecting rings by using machining equipment.
Example 3:
the welding tool comprises a U-shaped clamp 5 for clamping a collecting ring rough blank, a welding device 6 arranged above the U-shaped clamp 5 for welding the collecting ring rough blank, and a control module electrically connected with the U-shaped clamp 5 and the welding device 6;
the U-shaped clamp 5 comprises a disc 50 fixed on a horizontal plane, a U-shaped rotating bracket 51 which is vertical to the horizontal plane and is movably arranged on the disc 50, a first rotating motor 52 arranged at the joint of the middle part of the lower end of the U-shaped rotating bracket 51 and the disc 50, two groups of pneumatic clamps 53 horizontally arranged at two sides of the U-shaped rotating bracket 51 and two adjusting devices 54 arranged at two sides of the lower end of the U-shaped rotating bracket 51;
the pneumatic clamp 53 comprises a pneumatic push-pull rod 530 which is horizontally arranged on the side surface of the U-shaped rotating support 51 and the telescopic end of which penetrates through the U-shaped rotating support 51, and a clamp which is arranged at the telescopic end of the pneumatic push-pull rod 530 and connected with the rough blank of the collecting ring;
the fixture comprises two arc-shaped clamping plates 531 in planar contact with the two sides of the rough blank of the collecting ring, a supporting plate 532 movably arranged between the arc-shaped clamping plates 531, a flexible rubber plate 533 arranged on the supporting plate 532 and in contact with the arc surface of the rough blank of the collecting ring, springs 534 evenly arranged between the flexible rubber plate 533 and the supporting plate 532, and bearings evenly arranged on the contact surfaces of the flexible rubber plate 533 and the rough blank of the collecting ring.
The adjusting device 54 comprises a mounting piece 540 arranged at the side part of the lower end of the U-shaped rotating bracket 51, an adjusting rotary drum 541 which is movably arranged on the mounting piece 540 and is contacted with the cambered surface of the slip ring rough blank, and a second rotating motor 542 which is arranged on the mounting piece 540 and provides power for the adjusting rotary drum 541;
the surface of the conditioning drum 541 is provided with rubber protrusions that increase friction.
The welding device 6 comprises a bolt fixing plate 60 fixed above the U-shaped rotating bracket 51, a threaded lead screw 61 horizontally arranged on the bolt fixing plate 60 and positioned right above the slip ring rough blank, a moving connecting piece 62 movably arranged on the threaded lead screw 61, a sliding rail 63 vertically arranged right below the moving connecting piece 62, an arc welding torch head 64 movably arranged in the sliding rail 63, and an infrared distance measuring assembly 65 arranged right below the sliding rail 63.
The difference from example 1 is:
a processing technology of a collecting ring of a high-power generator applying the welding tool comprises the following steps:
s1: stock preparation
Preparing a copper bar raw material with the diameter of 18-32 mm according to the size requirement of the cross section A and B of the collecting ring to be processed; preparing a section extrusion die and a drawing die which are matched with the section size of the collecting ring;
the extrusion die and the drawing die are both made of high-strength alloy materials; the center of the drawing die is provided with a second forming hole A and B; the center of the extrusion die is provided with a first forming hole C and D; c is A +4 mm; d is B +4 mm;
s2: extrusion and drawing
A profile extruder is adopted, so that the copper bar raw material prepared in the step S1 penetrates through a first forming hole of an extrusion die at a constant speed to obtain a profile raw material;
extrusion current of profile extruder: 500A; the rotating speed of the extrusion wheel is 8r/min specifically;
then, the obtained section raw material penetrates through a second forming hole of the drawing die at a constant speed by adopting a drawing machine to obtain a standard section raw material; sawing off the standard section raw material according to the circumference of the collector ring to be processed;
the drawing force of the drawing machine is 30 t; the drawing speed is 0.9 m/s; the flatness and the straightness of the standard section raw material are both 0.1 mm.
S3: roll bending
Rolling and bending the standard section material sawn in the step S2 into a circular ring shape on a width surface along the length direction of the section material by adopting a roll bending machine;
s4: beveling and welding
Processing a welding groove which is matched with the standard section bar according to the thickness and the width of the raw material of the standard section bar; welding the welding groove by adopting electric arc welding on a welding tool to obtain a collecting ring rough blank;
the welding groove is a V-shaped groove with symmetrical double faces; wherein the included angle of the V-shaped groove is 100 degrees;
the specific welding process is as follows: clamping the circular copper ring obtained by roll bending on an arc clamping plate 531, and measuring the distance from the arc welding gun head 64 to the V-shaped groove by an infrared distance measuring assembly 65; the control module rotates the annular copper ring through the adjusting rotary drum 541 according to the detection distance; the threaded screw 61 and the sliding track 63 move the arc welding gun head 64 to enable the V-shaped groove to be in butt joint with the arc welding gun head 64, and accurate welding is carried out; the first rotating motor 52 rotates the U-shaped rotating bracket to weld the other side of the V-shaped groove.
S5: post weld treatment
Polishing the welding seam of the rough blank of the collecting ring welded in the step S4 for 10min to obtain the collecting ring;
s6: machining
And machining mounting hole positions on the obtained collector ring by using machining equipment.
Claims (6)
1. A processing technology for a collector ring of a high-power generator is characterized by comprising the following steps:
s1: stock preparation
Preparing a copper bar raw material with the diameter of 18-32 mm according to the size requirement of the cross section A and B of the collector ring to be processed; preparing a section extrusion die and a drawing die which are matched with the section size of the collecting ring;
the extrusion die and the drawing die are both made of high-strength alloy materials; the center of the drawing die is provided with a second forming hole A and B; the center of the extrusion die is provided with a first forming hole C and D; c is A + 0.8-8 mm; d is B + 0.8-8 mm;
s2: extrusion and drawing
A profile extruder is adopted, so that the copper bar raw material prepared in the step S1 penetrates through a first forming hole of an extrusion die at a constant speed to obtain a profile raw material;
then, a drawing machine is adopted to enable the obtained section raw material to penetrate through a second forming hole of a drawing die at a constant speed, and standard section raw material is obtained; sawing off the standard section bar raw material according to the circumference of the collecting ring to be processed;
s3: roll bending
Rolling and bending the standard section bar raw material sawn off in the step S2 into a circular ring shape along the length direction of the section bar on the width surface by adopting a roll bending machine; wherein, the roll bending machine adopts a special roll bending die;
the special roll bending die comprises: the device comprises a middle rolling ring (1) with a side wall in contact with the width surface of a standard profile raw material, an upper limit ring (2) of a roll bending die arranged at the upper end of the middle rolling ring (1), a lower limit ring (3) of the roll bending die arranged at the lower end of the middle rolling ring (1), and two backing rings (4) respectively arranged at the joints of the middle rolling ring (1) and the upper limit ring (2) of the roll bending die and the middle rolling ring (1) and the lower limit ring (3) of the roll bending die;
s4: beveling and welding
Processing a welding groove which is matched with the standard section bar according to the thickness and the width of the raw material of the standard section bar;
welding the welding groove on the welding tool by adopting electric arc welding to obtain a collecting ring rough blank;
the welding tool comprises a U-shaped clamp (5) for clamping a collecting ring rough blank, a welding device (6) arranged above the U-shaped clamp (5) for welding the collecting ring rough blank, and a control module electrically connected with the U-shaped clamp (5) and the welding device (6);
the U-shaped clamp (5) comprises a disc (50) fixed on a horizontal plane, a U-shaped rotating support (51) which is perpendicular to the horizontal plane and is movably installed on the disc (50), a first rotating motor (52) arranged at the joint of the middle of the lower end of the U-shaped rotating support (51) and the disc (50), two groups of pneumatic clamps (53) horizontally arranged on two sides of the U-shaped rotating support (51) and two adjusting devices (54) arranged on two sides of the lower end of the U-shaped rotating support (51);
the pneumatic clamp (53) comprises a pneumatic push-pull rod (530) which is horizontally arranged on the side surface of the U-shaped rotating support (51) and the telescopic end of which penetrates through the U-shaped rotating support (51), and a clamp which is arranged at the telescopic end of the pneumatic push-pull rod (530) and connected with a slip ring rough blank;
the clamp comprises two arc-shaped clamping plates (531) in plane contact with two sides of a collector ring rough blank, a supporting plate (532) movably arranged between the arc-shaped clamping plates (531), a flexible rubber plate (533) arranged on the supporting plate (532) and in contact with the arc surface of the collector ring rough blank, springs (534) uniformly arranged between the flexible rubber plate (533) and the supporting plate (532), and bearings uniformly arranged on the contact surfaces of the flexible rubber plate (533) and the collector ring rough blank;
the welding device (6) comprises a bolt fixing plate (60) fixed above a U-shaped rotating support (51), a threaded lead screw (61) horizontally arranged on the bolt fixing plate (60) and positioned right above a collecting ring rough blank, a moving connecting piece (62) movably arranged on the threaded lead screw (61), a sliding rail (63) vertically arranged right below the moving connecting piece (62), an arc welding gun head (64) movably arranged in the sliding rail (63), and an infrared distance measuring assembly (65) arranged right below the sliding rail (63);
s5: post-weld treatment
Polishing the welding seam of the rough blank of the collecting ring welded in the step S4 for 5-18 min to obtain the collecting ring;
s6: machining
And machining installation hole sites on the obtained collecting rings by using machining equipment.
2. The processing technology of the collector ring of the high-power generator according to claim 1, wherein the flatness and straightness of the standard section bar raw material obtained in the extruding and drawing steps are both less than or equal to 0.2 mm.
3. The processing technology of the collector ring of the high-power generator according to claim 1, wherein the extrusion current of the profile extruder in the extruding and drawing steps is as follows: less than or equal to 500A; the rotating speed of the extrusion wheel is 5-10 r/min.
4. The processing technology of the collector ring of the high-power generator according to claim 1, wherein the drawing force of the drawing machine in the extruding and drawing steps is 10t to 50 t; the drawing speed is 0.3 to 1.5 m/s.
5. The process for machining the collector ring of the high-power generator according to claim 1, wherein the beveling and the welding bevel in the welding step are V-shaped bevels which are symmetrical on two sides; wherein the included angle of the V-shaped groove is 80-120 degrees.
6. The processing technology of the collector ring of the high-power generator according to the claim 1, characterized in that the adjusting device (54) comprises a mounting piece (540) arranged at the lower end side part of the U-shaped rotating bracket (51), an adjusting drum (541) movably arranged on the mounting piece (540) and contacted with the rough blank of the collector ring in an arc surface manner, and a second rotating motor (542) arranged on the mounting piece (540) and used for providing power for the adjusting drum (541);
the surface of the adjusting drum (541) is provided with rubber bulges which increase the friction force.
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| JP4159208B2 (en) * | 1999-10-29 | 2008-10-01 | 本田技研工業株式会社 | Rolling dies |
| CN103909387A (en) * | 2014-04-14 | 2014-07-09 | 厦门艾瑞克斯铜业有限公司 | Production method for processing contacts by special-shaped copper bars |
| CN111975682B (en) * | 2020-08-31 | 2022-03-18 | 河南工程学院 | Industrial robot composite clamp |
| CN112081800B (en) * | 2020-09-21 | 2022-05-10 | 零八一电子集团四川力源电子有限公司 | Processing method for producing fastening device |
| CN213764732U (en) * | 2020-11-20 | 2021-07-23 | 浙江宏远不锈钢有限公司 | Stainless steel nest of tubes welding set |
| CN112562921A (en) * | 2020-12-30 | 2021-03-26 | 江阴电工合金股份有限公司 | Production device and manufacturing process of sliding small U-shaped conductive bar |
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2021
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