CN110303230B - Resistance welder for welding balance weight on inclined plane of torque converter shell - Google Patents
Resistance welder for welding balance weight on inclined plane of torque converter shell Download PDFInfo
- Publication number
- CN110303230B CN110303230B CN201910707841.9A CN201910707841A CN110303230B CN 110303230 B CN110303230 B CN 110303230B CN 201910707841 A CN201910707841 A CN 201910707841A CN 110303230 B CN110303230 B CN 110303230B
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- pressurizing
- welding
- frame
- negative electrode
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- 238000003466 welding Methods 0.000 title claims abstract description 83
- 230000007246 mechanism Effects 0.000 claims abstract description 25
- 238000001816 cooling Methods 0.000 claims abstract description 23
- 230000017105 transposition Effects 0.000 claims description 47
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 20
- 239000000872 buffer Substances 0.000 claims description 13
- 239000004020 conductor Substances 0.000 claims description 13
- 239000003921 oil Substances 0.000 claims description 9
- 229910052710 silicon Inorganic materials 0.000 claims description 8
- 239000010703 silicon Substances 0.000 claims description 8
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 7
- 229910001369 Brass Inorganic materials 0.000 claims description 6
- 239000010951 brass Substances 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 4
- 238000005192 partition Methods 0.000 claims description 4
- 239000011889 copper foil Substances 0.000 claims description 3
- 238000010330 laser marking Methods 0.000 claims description 3
- QZLJNVMRJXHARQ-UHFFFAOYSA-N [Zr].[Cr].[Cu] Chemical compound [Zr].[Cr].[Cu] QZLJNVMRJXHARQ-UHFFFAOYSA-N 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 230000006872 improvement Effects 0.000 abstract description 3
- 230000009467 reduction Effects 0.000 abstract description 3
- 239000003595 mist Substances 0.000 description 6
- 238000003825 pressing Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 240000004282 Grewia occidentalis Species 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/36—Auxiliary equipment
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Resistance Welding (AREA)
Abstract
The invention relates to a resistance welder for welding a balance weight on an inclined plane of a torque converter shell, which consists of a frame, a positioning clamp, a pressurizing mechanism, a welding system, a cooling system, a pneumatic system and a control system, wherein the frame is of a frame structure, the positioning clamp is arranged at the center of a platform of the frame, the pressurizing mechanism is arranged above the positioning clamp, the welding system is arranged in the pressurizing mechanism and the frame, the control system is arranged above the platform of the frame, and the cooling system and the pneumatic system are arranged on the left side surface of the frame. The beneficial effects of the invention are as follows: the balance weight welding processing of the torque converter is completed in a resistance welding mode, and the purposes of simplicity in operation, improvement of operating environment, production efficiency and product quality and reduction of processing cost are achieved.
Description
Technical Field
The invention belongs to the technical field of resistance welding machines, and particularly relates to a resistance welding machine for welding a balance weight on an inclined plane of a torque converter shell.
Background
The resistance welding equipment is mainly used for pressing a workpiece to be welded between two electrodes, and heating the workpiece to a molten or plastic state through resistance heat generated by current flowing through a workpiece contact surface and an adjacent area so as to achieve the purpose of welding.
In typical torque converter manufacture, the weight is one of its important components. At present, the balance weight is welded on the torque converter shell and is processed through manual arc welding, and the following defects exist: 1. arc welding requires high skill for personnel to operate, and long-term working on the work can influence the physical health of staff; 2. the drilling process is added to the balance weight to ensure the stability of the weight of the balance weight after arc welding; 3. after arc welding, the welded balance weight is required to be polished to remove welding slag for the appearance of the product, so that the labor intensity is greatly increased; 4. the heat generated by arc welding is large, and the stamping forming torque converter is deformed to a certain extent, so that the product quality is affected.
Disclosure of Invention
The invention aims to overcome the problems in the prior art, and provides a resistance welder for welding a balance weight on an inclined plane of a torque converter shell, which aims to achieve the purposes of simplicity in operation, improvement of operation environment, production efficiency and product quality and reduction of processing cost.
In order to achieve the above purpose, the present invention adopts the following technical scheme: the utility model provides a resistance welder for welding balancing piece on torque converter shell inclined plane, includes frame, positioning fixture, pressurizing mechanism, welding system, cooling system, pneumatic system and control system, the frame is frame construction, and the platform center of frame is equipped with positioning fixture, and positioning fixture top is equipped with pressurizing mechanism, and welding system sets up inside pressurizing mechanism and frame, and the platform top of frame is equipped with control system, and the left surface of frame is equipped with cooling system, pneumatic system.
The positioning fixture comprises a jacking cylinder support, a jacking cylinder, a jacking block, a movable sliding table, a negative electrode conductive plate support, a negative electrode conductive plate, a negative electrode head and a balance block limiting block, wherein the movable sliding table is arranged at the center of a platform of the frame and comprises a movable sliding table base, a first sliding block sliding rail pair, an upper sliding plate, a workpiece tray and an insulating ring, the movable sliding table base is arranged at the center of the platform of the frame, an upper sliding plate is arranged above the movable sliding table base, a first sliding block sliding rail pair is arranged between the movable sliding table base and the upper sliding plate, and the upper sliding plate can horizontally move; the workpiece tray is arranged above the upper sliding plate, an insulating ring is arranged between the workpiece tray and the upper sliding plate to prevent power transmission to the rack, and a positioning round hole is formed in the center of the workpiece tray and used for placing the torque converter; a jacking cylinder bracket is arranged on a frame platform at the left side of the movable sliding table, a jacking cylinder is arranged on the jacking cylinder bracket, a jacking block is arranged at the end part of a piston rod of the jacking cylinder, the end part of the jacking block is arc-shaped and matched with the appearance of the torque converter, and the piston rod of the jacking cylinder stretches out to jack the torque converter to the position of a negative electrode head; the movable sliding table is characterized in that a negative electrode conductive support is arranged on the frame on the right side of the movable sliding table, a negative electrode conductive plate is arranged on the inner side of the negative electrode conductive support, a negative electrode head is arranged on the inner side of the upper end of the negative electrode conductive plate, the inner side of the negative electrode head is arc-shaped and matched with the appearance of the torque converter, a balance block limiting block is arranged on the negative electrode conductive plate, an insulating pad is arranged between the balance block limiting block and the negative electrode conductive plate, positive and negative electrodes are separated, a positioning groove is formed in the head of the balance block limiting block, and a balance block to be welded is placed in the positioning groove.
Further, the workpiece tray is made of brass, so that the workpiece is prevented from being scratched;
Further, a spring guide column is arranged between the left connecting plate and the right connecting plate of the movable sliding table base, a return spring sleeve assembly is arranged on the outer surface of the spring guide column and connected with the upper sliding plate through a spring baffle, and after the jacking cylinder is loosened, a spring in the return spring sleeve assembly jacks the upper sliding plate back to the middle of the frame to perform upper and lower workpieces;
Further, a first hydraulic buffer is arranged on the right-end connecting plate of the movable sliding table base and is in contact with the right end of the upper sliding plate, so that impact of the jacking cylinder on the negative electrode conductive support is relieved.
The pressurizing mechanism comprises a pressurizing support, a transposition slipway and a pressurizing head, wherein the pressurizing support is arranged behind the negative electrode conductive support of the frame, the transposition slipway is arranged on the pressurizing support, and the pressurizing head is arranged on the transposition slipway;
the transposition sliding table comprises a transposition sliding table base, a second sliding block and sliding rail pair, a second hydraulic buffer, a position adjusting screw, a transposition air cylinder, a pressurizing head mounting plate, a hinge shaft and a pressurizing head mounting sliding plate, wherein the transposition sliding table base is arranged on the front side surface of the pressurizing support through bolts, and the installation position of the transposition sliding table base forms an included angle of 120 degrees with the horizontal plane; the pressurizing head mounting sliding plate is arranged on the transposition sliding table base, and a second sliding block and sliding rail pair is arranged between the transposition sliding table base and the pressurizing head mounting sliding plate, so that the pressurizing head mounting sliding plate can translate on the transposition sliding table base; the pressurizing head mounting plate is arranged on the pressurizing head mounting slide plate, and the pressurizing head mounting slide plate is connected with the pressurizing head mounting plate by adopting a central hinge shaft and bolts at four corners, so that the angle adjustment of the pressurizing head mounting plate can be realized; position adjusting screws and a second hydraulic buffer are arranged on the two end faces of the transposition slipway base corresponding to the pressurizing head mounting slide plate, so that limiting and buffering of the pressurizing head mounting slide plate during movement are realized; one end of the transposition sliding table base is provided with a transposition air cylinder, a sliding connecting block is arranged below the pressurizing head mounting sliding plate, the transposition air cylinder is connected with the sliding connecting block through a floating joint, and the pressurizing head mounting sliding plate is driven to drive the pressurizing head to transversely move so as to adjust the position of the pressurizing head;
The pressurizing head comprises a pressurizing cylinder, an electromagnetic valve and a connecting plate, the pressurizing head is arranged on a pressurizing head mounting plate of a pressurizing mechanism transposition slipway through a pressurizing head frame of the pressurizing cylinder, and an insulating plate is arranged between the pressurizing head frame of the pressurizing cylinder and the pressurizing head mounting plate to prevent power transmission to the rack; the top of the pressurizing cylinder is provided with an electromagnetic valve, so that the action of the pressurizing cylinder can be controlled to be rapid and slow, and the welding pressure can be regulated; the end part of the cylinder rod of the pressurizing cylinder is provided with a connecting plate, the end part of the pressurizing head frame of the pressurizing cylinder is provided with a guide plate, a guide rod is arranged in the guide plate and fixedly connected with the connecting plate, the guide rod is arranged in parallel with the cylinder rod of the pressurizing cylinder, and the connecting plate applies pressure to the upper electrode arm to realize the pressurization of the positive electrode head.
Further, a laser marking instrument is arranged at the upper end of the pressurizing support, and after an operator places the torque converter, the laser marking instrument can mark a cross cursor at a welding position on the torque converter to assist the operator in accurately placing the balance weight.
The welding mechanism comprises a welding transformer, a current transformer, a silicon controlled rectifier, a power frequency welding resistance controller and a conductive component, wherein the welding transformer is connected with the current transformer and the silicon controlled rectifier and is arranged in the frame; the power frequency welding-resistance controller is arranged on the right side surface of the frame; the conductive component comprises a positive conductive plate bracket, a positive conductive plate, a movable conductor, an upper power supply disc, an upper electrode arm, an upper electrode holding rod, a positive electrode head, a negative conductive plate bracket, a negative conductive plate and a negative electrode head; the positive electrode conducting plate support is arranged on the right side of the frame platform, a positive electrode conducting plate is arranged on the positive electrode conducting plate support, the lower end of the positive electrode conducting plate is connected with the welding transformer, the upper end of the positive electrode conducting plate is connected with one end of the movable conductor, and the other end of the movable conductor is provided with an upper power feeding disc; an upper electrode arm is arranged in the upper power supply disc, the cylindrical upper electrode arm is horizontally arranged in a semicircular groove on the surface of the upper power supply disc, and is clamped and positioned by a connecting plate of a pressurizing head, one end of the upper electrode arm is provided with a downward upper electrode holding rod, and the lower end of the upper electrode holding rod is provided with a positive electrode head; the negative electrode conductive support is arranged on the frame on the right side of the movable sliding table, the negative electrode conductive plate is arranged on the inner side of the negative electrode conductive support, the lower end of the negative electrode conductive plate is connected with the welding transformer, and the negative electrode head is arranged on the inner side of the upper end of the negative electrode conductive plate.
Further, the movable conductor adopts the purple copper foil, so that the heat dissipation effect is good, the service life is long, and the up-and-down movement of the positive electrode head is realized.
Further, the positive electrode conducting plate and the negative electrode conducting plate are made of brass, and the conducting performance is good.
Furthermore, the positive electrode head and the negative electrode head are made of chromium-zirconium-copper materials, and have good conductivity and high hardness.
The cooling system comprises a flow display sensor, a water inlet water division block, a water return water division block, a ball valve, a pipe joint and a cooling pipeline, adopts an internal circulation cooling mode, adopts a parallel pipeline design for internal cooling, ensures that conductive components such as a welding transformer, a silicon controlled rectifier, a conductive plate, an electrode and the like are reliably cooled, is provided with the flow display to observe the water flow condition at any time in the cooling system, is provided with the water flow sensor, and can automatically stop and alarm when the cooling water quantity does not reach a set value, thereby being beneficial to the control of product quality and the protection of the welding machine.
The pneumatic system comprises an air filter, a pressure reducing valve, an oil mist device and a baffle plate, wherein the air filter, the pressure reducing valve and the oil mist device are connected in series through the baffle plate, so that the functions of filtering air, adjusting the pressure of a cylinder and the like can be realized; the air filter is arranged at the initial end of the air channel, purifies air, removes impurities and moisture in the air, and prolongs the service life of subsequent air channel elements; the pressure reducing valve regulates the pressure of the compressed air to a set value and stabilizes the pressure; the oil mist device is arranged in front of the actuating element and provides lubricating oil for the actuating element (such as a cylinder).
The control system comprises an electric control box, an operation box, a single button and a double button, wherein the electric control box is arranged at the left rear part of the rack platform, and the operation box is arranged on the front panel of the electric control box; the electric cabinet is a control center of the equipment, a Programmable Logic Controller (PLC) can be used for programming and controlling welding spots, welding sequences and the like at different positions, an action program can be called or modified through a touch screen on the operation box, and automatic or manual switching can be performed; when equipment fails in the middle of work, the electrical control system automatically alarms, fault signals are displayed on the touch screen, and the whole equipment is stopped through the electric cabinet; the front of the frame platform is provided with a single button and a double button, the single button is provided with a starting function, the double button is provided with a starting and emergency stopping function, and the starting mode is started by simultaneously pressing the starting button by two hands for safety.
Working principle:
1. Welding preparation
After the installation and the distribution of the pipes are completed, the welding preparation is made.
1) Confirming the circulation of cooling water and the water temperature;
2) The descending and ascending speeds of the pressurizing heads are adjusted;
3) Adjusting welding current, welding time and welding pressure;
4) The welding pressure is adjusted by setting the value of the electromagnetic valve.
2. Working program
The water, electricity and gas conditions of the equipment all reach the state of being capable of being welded, and the automatic welding state is reached, so that the equipment is ready to start welding.
3. Welding process
1) Placing the tested torque converter on a movable slipway;
2) Rotating the workpiece to align the unbalanced position of the mark with a reticle of the laser reticle;
3) The starting buttons are pressed by two hands, and the positioning clamp automatically clamps the workpiece;
4) The first balance block to be welded is placed on the alignment balance block limiting block;
5) Starting a button by both hands, and automatically spot-welding the equipment;
6) Repeating the steps 4 and 5, and welding a second balance weight in sequence;
7) And (5) taking down the welded workpiece after the welding is completed.
The beneficial effects of the invention are as follows: the balance weight welding processing of the torque converter is completed in a resistance welding mode, and the purposes of simplicity in operation, improvement of operating environment, production efficiency and product quality and reduction of processing cost are achieved.
Drawings
Fig. 1 is a schematic perspective view of an embodiment of the present invention.
Fig. 2 is an exploded perspective view of a positioning fixture according to an embodiment of the present invention.
Fig. 3 is an exploded perspective view of a transposition sliding table in a pressurizing mechanism according to an embodiment of the present invention.
Fig. 4 is an exploded perspective view of a pressing head in a pressing mechanism according to an embodiment of the present invention.
Fig. 5 is an exploded perspective view of a welding mechanism according to an embodiment of the present invention.
Fig. 6 is a schematic perspective view of a cooling system according to an embodiment of the invention.
Fig. 7 is an exploded perspective view of a pneumatic system according to an embodiment of the present invention.
Fig. 8 is a schematic perspective view of a control system according to an embodiment of the invention.
Note that: pipelines in the cooling system and the pneumatic system are omitted in the figure, wherein: 1-frame, 2-torque converter, 3-balance weight, 4-positioning clamp, 41-jack cylinder bracket, 42-jack cylinder, 43-jack block, 441-moving sliding table base, 442-first sliding block sliding rail pair, 443-upper sliding plate, 444-workpiece tray, 445-insulating ring, 446-base connecting plate, 447-spring guide post, 448-return spring sleeve component, 449-spring baffle, 450-first hydraulic buffer, 451-balance weight limiting block, 452-insulating pad, 5-pressurizing mechanism, 51-pressurizing support, 52-transposition slide table, 521-transposition slide table base, 522-second slide block slide rail pair, 523-second hydraulic buffer, 524-position adjusting screw, 525-transposition cylinder, 526-pressurizing head mounting plate, 527-hinge shaft, 528-pressurizing head mounting slide plate, 529-sliding connecting block, 530-floating joint, 53-pressurizing head, 531-pressurizing cylinder, 532-solenoid valve, 533-connecting plate, 534-pressurizing head, 535-guide plate, 536-guide rod, 537-insulating plate, 54-marking instrument, 6-welding mechanism, 61-welding transformer, 62-current transformer, 63-silicon controlled rectifier, 64-power frequency welding controller, 651-positive electrode conductive plate support, 652-positive electrode conductive plate, 653-movable conductor, 654-upper electrode plate, 655-upper electrode arm, 656-upper electrode holding rod, 657-positive electrode head, 658-negative electrode conductive plate support, 659-negative electrode conducting plate, 660-negative electrode head, 7-cooling system, 71-flow display sensor, 72-water inlet water diversion block, 73-water return water diversion block, 74-ball valve, 75-pipe joint, 8-pneumatic system, 81-air filter, 82-relief valve, 83-oiler, 84-separator, 9-control system, 91-electric cabinet, 92-operation box, 93-single button and 94-double button.
Detailed Description
The technical scheme of the invention is further described in detail below with reference to the examples and the accompanying drawings:
Referring to fig. 1, a resistance welder for welding a balance weight on a torque converter shell inclined plane comprises a frame 1, a positioning clamp 4, a pressurizing mechanism 5, a welding system 6, a cooling system 7, a pneumatic system 8 and a control system 9, wherein the frame 1 is of a frame structure, the positioning clamp 4 is arranged at the center of a platform of the frame 1, the pressurizing mechanism 5 is arranged above the positioning clamp 4, the welding system 6 is arranged inside the pressurizing mechanism 5 and the frame 1, the control system 9 is arranged above the platform of the frame 1, and the cooling system 7 and the pneumatic system 8 are arranged on the left side surface of the frame 1.
As shown in fig. 1 and 2, the positioning fixture 4 includes a tightening cylinder bracket 41, a tightening cylinder 42, a tightening block 43, a moving sliding table, a negative electrode conductive plate bracket 658, a negative electrode conductive plate 659, a negative electrode head 660 and a balance block limiting block 451, wherein the moving sliding table is disposed at the platform center of the frame 1, the moving sliding table includes a moving sliding table base 441, a first sliding block sliding rail pair 442, an upper sliding plate 443, a workpiece tray 444 and an insulating plate 445, the moving sliding table base 441 is disposed at the platform center of the frame 1, an upper sliding plate 443 is disposed above the moving sliding table base 441, and a first sliding block sliding rail pair 442 is disposed between the moving sliding table base 441 and the upper sliding plate 443; the workpiece tray 444 is arranged above the upper sliding plate 443, an insulating ring 445 is arranged between the workpiece tray 444 and the upper sliding plate 443, and a positioning round hole is formed in the center of the workpiece tray 444 and used for placing the torque converter 2; a jacking cylinder bracket 41 is arranged on a platform of the frame 1 on the left side of the movable sliding table, a jacking cylinder 42 is arranged on the jacking cylinder bracket 41, a jacking block 43 is arranged at the end part of a piston rod of the jacking cylinder 42, the end part of the jacking block 43 is arc-shaped and matched with the appearance of the torque converter 2, and the piston rod of the jacking cylinder 42 stretches out to jack the torque converter 2 to a position of a negative electrode head 660; the frame 1 on the right side of the movable sliding table is provided with a negative electrode conductive support 658, the inner side of the negative electrode conductive support 658 is provided with a negative electrode conductive plate 659, the inner side of the upper end of the negative electrode conductive plate 659 is provided with a negative electrode head 660, the inner side of the negative electrode head 660 is arc-shaped and matched with the appearance of the torque converter 2, the upper surface of the negative electrode conductive plate 659 is provided with a balance block limiting block 451, an insulating pad 452 is arranged between the balance block limiting block 451 and the negative electrode conductive plate 659, the head of the balance block limiting block 451 is provided with a positioning groove, and a balance block 3 to be welded is placed in the positioning groove.
The workpiece tray 444 is made of brass.
As shown in fig. 1 and 2, a spring guide post 447 is disposed between the left and right connection plates 446 of the movable sliding table base 441, a return spring sleeve assembly 448 is disposed on the outer surface of the spring guide post 447, and the return spring sleeve assembly 448 is connected with the upper sliding plate 443 through a spring baffle 449; the right connecting plate 446 of the movable sliding table base 441 is provided with a first hydraulic buffer 450, and the first hydraulic buffer 450 corresponds to the right end of the upper sliding plate 443.
As shown in fig. 1, 3 and 4, the pressurizing mechanism 5 includes a pressurizing support 51, a transposition slip 52 and a pressurizing head 53, the pressurizing support 51 is disposed on the platform of the stand 1 and behind the negative electrode conductive support 658, the transposition slip 52 is disposed on the pressurizing support 51, and the pressurizing head 53 is disposed on the transposition slip 52;
As shown in fig. 1 and 3, the transposition slide table 52 includes a transposition slide table base 521, a second slide block and slide rail pair 522, a second hydraulic buffer 523, a position adjusting screw 524, a transposition cylinder 525, a pressurization head mounting plate 526, a hinge shaft 527 and a pressurization head mounting slide plate 528, wherein the transposition slide table base 521 is arranged on the front side surface of the pressurization bracket 51 through a bolt, and the mounting position of the transposition slide table base 521 forms an included angle of 120 degrees with the horizontal plane; a pressurizing head mounting sliding plate 528 is arranged on the transposition sliding table base 521, and a second sliding block and sliding rail pair 522 is arranged between the transposition sliding table base 521 and the pressurizing head mounting sliding plate 528; the pressurizing head mounting plate 528 is provided with a pressurizing head mounting plate 526, and the pressurizing head mounting plate 528 is connected with the pressurizing head mounting plate 526 by adopting a central hinge shaft 527 and four-corner bolts; a second hydraulic buffer 523 and a position adjusting screw 524 are arranged on the transposition slide table base 521 corresponding to the two end surfaces of the pressurizing head mounting slide plate 528; one end of the transposition sliding table base 521 is provided with a transposition cylinder 525, a sliding connection block 529 is arranged below the pressurizing head installation sliding plate 528, and the transposition cylinder 525 is connected with the sliding connection block 529 through a floating joint 530;
As shown in fig. 1 and 4, the pressurizing head 53 includes a pressurizing cylinder 531, an electromagnetic valve 532, and a connecting plate 533, the pressurizing head 53 is disposed on a pressurizing head mounting plate 526 of the transposition slide table of the pressurizing mechanism 5 through a pressurizing head frame 534 of the pressurizing cylinder 531, and an insulating plate 537 is disposed between the pressurizing head frame 534 of the pressurizing cylinder 531 and the pressurizing head mounting plate 526; a solenoid valve 532 is arranged at the top of the pressurizing cylinder 531; the cylinder rod end of the pressurizing cylinder 531 is provided with a connecting plate 533, the end of the pressurizing headstock 534 of the pressurizing cylinder 531 is provided with a guide plate 535, a guide rod 536 is arranged in the guide plate 535, the guide rod 536 is fixedly connected with the connecting plate 533, and the guide rod 536 is arranged in parallel with the cylinder rod of the pressurizing cylinder 531.
A laser reticle 54 is disposed at the upper end of the pressing bracket 51.
As shown in fig. 1 and 5, the welding mechanism 6 comprises a welding transformer 61, a current transformer 62, a silicon controlled rectifier 63, a power frequency welding resistance controller 64 and a conductive component, wherein the welding transformer 61, the current transformer 62 and the silicon controlled rectifier 63 are connected and arranged in the frame 1; the power frequency welding-resistance controller 64 is arranged on the right side surface of the frame 1; the conductive members include a positive electrode conductive plate holder 651, a positive electrode conductive plate 652, a movable conductor 653, an upper power feeding tray 654, an upper electrode arm 655, an upper electrode grip 656, a positive electrode tab 657, a negative electrode conductive plate holder 658, a negative electrode conductive plate 659, and a negative electrode tab 660; the positive electrode conductive plate support 651 is arranged on the right side of the platform of the frame 1, a positive electrode conductive plate 652 is arranged on the positive electrode conductive plate support 651, the lower end of the positive electrode conductive plate 652 is connected with the welding transformer 61, the upper end of the positive electrode conductive plate 652 is connected with one end of the movable conductor 653, and the other end of the movable conductor 653 is provided with an upper power feeding disc 654; an upper electrode arm 655 is arranged in the upper electric feeding plate 654, the cylindrical upper electrode arm 655 is horizontally arranged in a semicircular groove on the surface of the upper electric feeding plate 654 and is clamped and positioned by a connecting plate 533 of the pressurizing head 53, one end of the upper electrode arm 655 is provided with a downward upper electrode holding rod 656, and the lower end of the upper electrode holding rod 656 is provided with a positive electrode head 657; a negative electrode conductive bracket 658 is arranged on the frame 1 on the right side of the movable sliding table, a negative electrode conductive plate 659 is arranged on the inner side of the negative electrode conductive bracket 658, the lower end of the negative electrode conductive plate 659 is connected with the welding transformer 61, and a negative electrode head 660 is arranged on the inner side of the upper end of the negative electrode conductive plate 659.
The movable conductor 653 is made of copper foil.
The positive electrode conductive plate 652 and the negative electrode conductive plate 659 are made of brass.
The positive electrode head 657 and the negative electrode head 660 are made of chromium, zirconium and copper.
As shown in fig. 1 and 6, the cooling system 7 includes a flow rate display sensor 71, a water inflow water division block 72, a water return water division block 73, a ball valve 74, a pipe joint 75 and a cooling pipe (not shown) which is configured by connecting the pipe joint 75 in parallel by internal circulation cooling to reliably cool the conductive members such as the welding transformer 61, the thyristor 63, the positive electrode conductive plate 652, the negative electrode conductive plate 659, the upper electrode grip 656, etc., and the flow rate display sensor 71 is provided in the cooling system 7.
As shown in fig. 1 and 7, the pneumatic system 8 includes an air filter 81, a pressure reducing valve 82, an oil mist device 83 and a partition 84, and the air filter 81, the pressure reducing valve 82 and the oil mist device 83 are connected in series through the partition 84; the air filter 81 is arranged at the initial end of the air passage, purifies air, removes impurities and moisture in the air, and prolongs the service life of subsequent air passage elements; the pressure reducing valve 82 adjusts and stabilizes the pressure of the compressed air to a set value; the oil mist device 83 is installed in front of the actuator to supply lubrication oil to the actuator (cylinder, etc.).
As shown in fig. 1 and 8, the control system 9 includes an electric cabinet 91, an operation box 92, a single button 93 and a double button 94, wherein the electric cabinet 91 is disposed at the left rear of the platform of the stand 1, and the operation box 92 is disposed on the front panel of the electric cabinet 91; the front of the platform of the stand 1 is provided with a single button 93 and a double button 94, the single button 93 is provided with a starting function, the double button 94 is provided with a starting function and an emergency stop function, and the starting mode is started by simultaneously pressing the starting buttons by two hands.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that variations and modifications could be made by those skilled in the art without departing from the principles of the present invention, which would also be considered to fall within the scope of the invention.
Claims (12)
1. A resistance welder for welding a counterweight on a torque converter housing incline, characterized by: the welding device comprises a frame, a positioning fixture, a pressurizing mechanism, a welding system, a cooling system, a pneumatic system and a control system, wherein the frame is of a frame structure, the positioning fixture is arranged at the center of a platform of the frame, the pressurizing mechanism is arranged above the positioning fixture, the welding system is arranged inside the pressurizing mechanism and the frame, the control system is arranged above the platform of the frame, and the cooling system and the pneumatic system are arranged on the left side face of the frame;
The positioning clamp comprises a jacking cylinder support, a jacking cylinder, a jacking block, a movable sliding table, a negative electrode conductive plate support, a negative electrode conductive plate, a negative electrode head and a balance block limiting block, wherein the movable sliding table is arranged at the center of a platform of the frame and comprises a movable sliding table base, a first sliding block sliding rail pair, an upper sliding plate, a workpiece tray and an insulating ring, the movable sliding table base is arranged at the center of the platform of the frame, the upper sliding plate is arranged above the movable sliding table base, and the first sliding block sliding rail pair is arranged between the movable sliding table base and the upper sliding plate; the workpiece tray is arranged above the upper sliding plate, an insulating ring is arranged between the workpiece tray and the upper sliding plate, and a positioning round hole is formed in the center of the workpiece tray and used for placing the torque converter; a jacking cylinder bracket is arranged on a frame platform at the left side of the movable sliding table, a jacking cylinder is arranged on the jacking cylinder bracket, a jacking block is arranged at the end part of a piston rod of the jacking cylinder, the end part of the jacking block is arc-shaped and matched with the appearance of the torque converter, and the piston rod of the jacking cylinder stretches out to jack the torque converter to the position of a negative electrode head; a negative electrode conductive bracket is arranged on the frame on the right side of the movable sliding table, a negative electrode conductive plate is arranged on the inner side of the negative electrode conductive bracket, a negative electrode head is arranged on the inner side of the upper end of the negative electrode conductive plate, the inner side of the negative electrode head is arc-shaped and matched with the appearance of the torque converter, a balance block limiting block is arranged on the negative electrode conductive plate, an insulating pad is arranged between the balance block limiting block and the negative electrode conductive plate, a positioning groove is formed in the head of the balance block limiting block, and a balance block to be welded is placed in the positioning groove;
The pressurizing mechanism comprises a pressurizing support, a transposition slipway and a pressurizing head, wherein the pressurizing support is arranged behind the negative electrode conductive support of the frame, the transposition slipway is arranged on the pressurizing support, and the pressurizing head is arranged on the transposition slipway;
The transposition sliding table comprises a transposition sliding table base, a second sliding block and sliding rail pair, a second hydraulic buffer, a position adjusting screw, a transposition air cylinder, a pressurizing head mounting plate, a hinge shaft and a pressurizing head mounting sliding plate, wherein the transposition sliding table base is arranged on the front side surface of the pressurizing support through bolts, and the installation position of the transposition sliding table base forms an included angle of 120 degrees with the horizontal plane; a pressurizing head mounting sliding plate is arranged on the transposition sliding table base, and a second sliding block and sliding rail pair is arranged between the transposition sliding table base and the pressurizing head mounting sliding plate; the pressurizing head mounting plate is provided with a pressurizing head mounting plate, and the pressurizing head mounting plate is connected with the pressurizing head mounting plate by adopting a central hinge shaft and bolts at four corners; the two end surfaces of the transposition slipway base, which correspond to the pressurizing head mounting slide plate, are provided with position adjusting screws and second hydraulic buffers; one end of the transposition sliding table base is provided with a transposition air cylinder, a sliding connecting block is arranged below the pressurizing head mounting sliding plate, and the transposition air cylinder is connected with the sliding connecting block through a floating joint;
The pressurizing head comprises a pressurizing cylinder, an electromagnetic valve and a connecting plate, the pressurizing head is arranged on a pressurizing head mounting plate of a pressurizing mechanism transposition slipway through a pressurizing head frame of the pressurizing cylinder, and an insulating plate is arranged between the pressurizing head frame of the pressurizing cylinder and the pressurizing head mounting plate; the top of the pressurizing cylinder is provided with an electromagnetic valve; the end part of the cylinder rod of the pressurizing cylinder is provided with a connecting plate, the end part of the pressurizing head frame of the pressurizing cylinder is provided with a guide plate, a guide rod is arranged in the guide plate and fixedly connected with the connecting plate, and the guide rod is arranged in parallel with the cylinder rod of the pressurizing cylinder.
2. The resistance welder for welding a weight to a torque converter housing incline of claim 1, wherein: the welding system comprises a welding transformer, a current transformer, a silicon controlled rectifier, a power frequency welding resistance controller and a conductive component, wherein the welding transformer is connected with the current transformer and the silicon controlled rectifier and is arranged in the frame; the power frequency welding-resistance controller is arranged on the side surface of the frame; the conductive component comprises a positive conductive plate bracket, a positive conductive plate, a movable conductor, an upper power supply disc, an upper electrode arm, an upper electrode holding rod, a positive electrode head, a negative conductive plate bracket, a negative conductive plate and a negative electrode head; the positive electrode conducting plate support is arranged on the right side of the frame platform, a positive electrode conducting plate is arranged on the positive electrode conducting plate support, the lower end of the positive electrode conducting plate is connected with the welding transformer, the upper end of the positive electrode conducting plate is connected with one end of the movable conductor, and the other end of the movable conductor is provided with an upper power feeding disc; an upper electrode arm is arranged in the upper power supply disc, the cylindrical upper electrode arm is horizontally arranged in a semicircular groove on the surface of the upper power supply disc, and is clamped and positioned by a connecting plate of a pressurizing head, one end of the upper electrode arm is provided with a downward upper electrode holding rod, and the lower end of the upper electrode holding rod is provided with a positive electrode head; the negative electrode conductive support is arranged on the frame on the right side of the movable sliding table, the negative electrode conductive plate is arranged on the inner side of the negative electrode conductive support, the lower end of the negative electrode conductive plate is connected with the welding transformer, and the negative electrode head is arranged on the inner side of the upper end of the negative electrode conductive plate.
3. The resistance welder for welding a weight to a torque converter housing incline of claim 1, wherein: the cooling system comprises a flow display sensor, a water inlet water division block, a water return water division block, a ball valve, a pipe joint and a cooling pipeline, wherein the internal cooling pipeline adopts a parallel pipeline design.
4. The resistance welder for welding a weight to a torque converter housing incline of claim 1, wherein: the pneumatic system comprises an air filter, a pressure reducing valve, an oil atomizer and a partition board, wherein the air filter, the pressure reducing valve and the oil atomizer are connected in series through the partition board.
5. The resistance welder for welding a weight to a torque converter housing incline of claim 1, wherein: the control system comprises an electric control box, an operation box, a single button and a double button, wherein the electric control box is arranged at the left rear part of the rack platform, and the operation box is arranged on the front panel of the electric control box; the front of the frame platform is provided with a single button and a double button, the single button is provided with a starting function, and the double button is provided with a starting and scram function.
6. The resistance welder for welding a weight to a torque converter housing incline of claim 1, wherein: the workpiece tray is made of brass.
7. The resistance welder for welding a weight to a torque converter housing incline of claim 1, wherein: a spring guide column is arranged between the left connecting plate and the right connecting plate of the movable sliding table base, a return spring sleeve component is arranged on the outer surface of the spring guide column, and the return spring sleeve component is connected with the upper sliding plate through a spring baffle plate.
8. The resistance welder for welding a weight to a torque converter housing incline of claim 1, wherein: the right end connecting plate of the movable sliding table base is provided with a first hydraulic buffer, and the first hydraulic buffer corresponds to the right end face of the upper sliding plate.
9. The resistance welder for welding a weight to a torque converter housing incline of claim 1, wherein: the upper end of the pressurizing support is provided with a laser marking instrument.
10. The resistance welder for welding a weight to a torque converter housing incline of claim 2, wherein: the movable conductor adopts a copper foil.
11. The resistance welder for welding a weight to a torque converter housing incline of claim 2, wherein: the positive electrode conducting plate and the negative electrode conducting plate are made of brass.
12. The resistance welder for welding a weight to a torque converter housing incline of claim 2, wherein: the positive electrode head and the negative electrode head are made of chromium-zirconium-copper materials.
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| CN201910707841.9A CN110303230B (en) | 2019-08-01 | 2019-08-01 | Resistance welder for welding balance weight on inclined plane of torque converter shell |
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| CN111716032B (en) * | 2020-06-30 | 2023-09-19 | 上海运安制版有限公司 | Auxiliary device for double-head welding machine for aligning key groove and welding blocking method |
| CN117182444A (en) * | 2023-07-10 | 2023-12-08 | 上海剑平动平衡机制造有限公司 | Counterweight correction equipment and process of hydraulic torque converter |
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| CN210848744U (en) * | 2019-08-01 | 2020-06-26 | 蚌埠液力机械有限公司 | Resistance welding machine for welding balance block on inclined plane of torque converter shell |
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| US5545872A (en) * | 1994-03-14 | 1996-08-13 | Honda Giken Kogyo Kabushiki Kaisha | Pressure controller and pressure control method for resistance welder |
| CN102873448B (en) * | 2011-07-12 | 2014-10-15 | 上海梅达焊接设备有限公司 | Self-adaption floatation pressure device for spot welding machine |
| CN102814584A (en) * | 2012-08-14 | 2012-12-12 | 温州天基机器人自动化有限公司 | Push rod clamp |
| CN103769734A (en) * | 2012-10-19 | 2014-05-07 | 张欢 | Resistance welding machine |
| CN106903417B (en) * | 2017-05-09 | 2023-09-19 | 蚌埠液力机械有限公司 | Turbine blade core ring spot welding device of hydraulic torque converter |
| CN107234326A (en) * | 2017-07-25 | 2017-10-10 | 广州松兴电气股份有限公司 | A kind of automobile axle nut projection welding automates special plane |
| CN207326166U (en) * | 2017-10-19 | 2018-05-08 | 郑州优尼冲压有限公司 | A kind of automatic resistance spot welding system |
| CN108971723B (en) * | 2018-08-08 | 2023-12-26 | 浙江众焊联科技有限公司 | Special resistance welding machine for barbecue oven |
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