CN110266142A - A kind of direct-connected servo motor for resistance spot welding - Google Patents
A kind of direct-connected servo motor for resistance spot welding Download PDFInfo
- Publication number
- CN110266142A CN110266142A CN201910696490.6A CN201910696490A CN110266142A CN 110266142 A CN110266142 A CN 110266142A CN 201910696490 A CN201910696490 A CN 201910696490A CN 110266142 A CN110266142 A CN 110266142A
- Authority
- CN
- China
- Prior art keywords
- screw rod
- push rod
- direct
- servo motor
- spot welding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000003466 welding Methods 0.000 title claims abstract description 22
- 230000033001 locomotion Effects 0.000 claims abstract description 13
- 230000008878 coupling Effects 0.000 claims description 24
- 238000010168 coupling process Methods 0.000 claims description 24
- 238000005859 coupling reaction Methods 0.000 claims description 24
- 229920001971 elastomer Polymers 0.000 claims description 5
- 239000000806 elastomer Substances 0.000 claims description 5
- 239000003921 oil Substances 0.000 claims 2
- 230000003139 buffering effect Effects 0.000 claims 1
- 239000010687 lubricating oil Substances 0.000 claims 1
- 238000000034 method Methods 0.000 description 6
- 238000005476 soldering Methods 0.000 description 5
- 230000001360 synchronised effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000007858 starting material Substances 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
- B23K11/10—Spot welding; Stitch welding
- B23K11/11—Spot welding
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Resistance Welding (AREA)
Abstract
The present invention relates to a kind of direct-connected servo motors for resistance spot welding, including power actuation system, the power device；Power actuation system is installed in the power device；The power actuation system includes push rod, and axis hole one is arranged in push rod, installs screw rod in the axis hole one, and one end of the screw rod is connect with power device, and the power device drives screw rod movement；There is gap, the set connected nut being adapted on the screw rod is bonded between the nut and push rod, and screw rod rotation, the nut can push push rod straight reciprocating motion, the configuration of the present invention is simple, welding precision height between screw rod and axis hole one.
Description
Technical field
The invention belongs to welding fields, and in particular to a kind of power output dress in robot resistance spot welding equipment
Set --- direct-connected servo motor
Background technique
There is resistance welding techniques field, mainly uses motor and powered actuation mechanism parallel linkage (also known as Zigzag type
Connection).
Attached drawing 1 shows existing Zigzag type servo motor, Fanuc robot motor a1 and powered actuation mechanism composition,
Motor a1 and ball screw a4 are placed in parallel in certain distance, and driving wheel a2 is housed on motor a1, is equipped on ball screw a4
Synchronous pulley a5, driving wheel a2 connects by synchronous belt a3 with synchronous pulley a5, ball screw nut a6 installed by screw and
On motor push rod a7.Robot control motor 1 rotation, which is connected by belt wheel a2, a5 with synchronous belt a3, drives ball screw a4, rolling
Ballscrew a4 rotation drives ball screw nut a6 and motor push rod a7 by doing straight reciprocating motion.Zigzag type servo motor passes
Low efficiency is passed, components type is more, and volume weight is larger, and there are mirroring devices for symmetrical station.
Summary of the invention
The technical problems to be solved by the present invention are: in view of the deficienciess of the prior art, providing a kind of transmission efficiency more
High, volume is smaller and symmetrical direct-connected servo motor.Part category using modularized design motor is less, mounting means
The more flexible technical solution for realizing above-mentioned purpose is as follows:
A kind of direct-connected servo motor for resistance spot welding, including power actuation system, the power device；It is described dynamic
Power actuation system is installed on power device；The power actuation system includes push rod, and axis hole one, the axis hole one is arranged in push rod
Interior installation screw rod, one end of the screw rod are connect with power device, and the power device drives screw rod movement；Screw rod and axis hole one
Between there is gap, the set connected nut being adapted on the screw rod is bonded between the nut and push rod, screw rod rotation, the spiral shell
Mother can push push rod straight reciprocating motion.
Preferably, the power actuation system further includes shaft joint one, axis device two；The screw rod is socketed in shaft coupling one
In axis hole, while output shaft hole is arranged in one end of screw rod, and the output shaft is inserted in the output shaft hole of screw rod；The output shaft
Shaft coupling two is also extended through, the shaft coupling two is connect with power device.
The configuration of the present invention is simple, welding precision are good.
Detailed description of the invention
Fig. 1 is prior-art illustration；
Fig. 2 is schematic diagram of the present invention；
Fig. 3 is shaft coupling attachment structure schematic diagram of the present invention；
Fig. 4 is schematic view of the mounting position of the invention；
Fig. 5 is that present invention matching a variety of brand machines forces reach structural schematic diagram；
Figure number explanation: motor 1, push rod 2, screw rod 3, nut 4, shaft coupling 1, spline 6, briquetting 7, shaft joint 28,
Connecting plate 9, elastomer cushion 10, locking nut 11, guide sleeve 12, cylinder sleeve 13, bearing 14, bearing block 15, scraper 16, connection
Axis 17, everything bearing 18, pump nozzle 19, cushion 20, anticreep washer 21, sealing ring 22, trunnion fixed block 23；
Specific embodiment
The present invention is described in detail with reference to the accompanying drawing.
In figure, the direct-connected servo motor for resistance spot welding includes power actuation system, power device, is preferably moved
Power device is motor 1, and the motor 1 is connect with power actuation system, and the motor 1 drives power actuation system movement, below
The specific structure of power actuation system is described:
Most important component is push rod 2 in power actuation system, and for welding, push rod 2 needs socket electrode cap on push rod 2
It moves forward and backward, axis hole one is arranged in the axle center of the push rod 2, is used to accommodate screw rod 3 in the axis hole one, be adapted on the screw rod 3
Set connected nut 4, and between screw rod 3 and axis hole one have gap, screw rod 3 rotation, the nut 4 can push 2 straight line of push rod
It moves back and forth；
The screw rod 3 needs power device to drive, therefore one end of screw rod 3 is connect with motor 1, in the present invention, the silk
It is attached between bar 3 and motor 1 using shaft coupling 1, shaft coupling 1 belongs to a part of power actuation system；Specifically
The shaft coupling 1 is socketed on the output shaft of motor 1；And one end of screw rod 3 also sets up output shaft hole, the output shaft insertion
, can be by the way of stationary fit between output shaft hole and output shaft in the output shaft hole of shaft joint 1, it can also be using flower
The connection type of key will not be detached from easily between such output shaft and output shaft hole；When motor 1 starts, the output shaft rotates
Screw rod 3 is driven to rotate, nut 4 carries out linear reciprocating motion on screw rod 3, and nut 4 will drive the movement of push rod 2 when moving.
The principle that nut 4 drives push rod 2 to move is as follows: groove being arranged in axis hole one, a part of the nut can be held
It sets in groove, fitting is adapted between groove and nut 4, when nut 4 is moved along screw rod, due to nut 4 and push rod 2
Between form a fitting, therefore nut 4 will push one piece of push rod movement, in order to avoid between nut 4 and push rod 2 because cooperating
Keyway is arranged on the excircle of nut 4 in the gap of generation, and push rod 2 and nut 4 are fixed on one with the spline 6 of keyway cooperation
It rises.
It is preferred that also setting up a briquetting 7 in the rear end of nut 4, one end of the briquetting 7 is fixed on push rod 2, and nut 4 passes through
Key 6 and briquetting 7 are fixed in motor push rod 2.
Nut 4 drives in 2 fallback procedures of push rod, and the inertia that push rod 2 moves can generate shaking force, if things go on like this to motor 1
Equal power parts will cause certain damage, therefore also set up a shaft joint 28, and shaft coupling 1 no longer directly connects with motor 1
It connects, but shaft coupling 28 is connect instead of shaft coupling 1 with motor 1, shaft coupling 1 sequentially retreats a position, connects for convenience
It connects, connecting plate 9 can be set on the end face of motor 1, avoid direct contact with and connect to destruction caused by motor 1, shaft joint
After 28 are fixed on motor 1 by connecting plate 9, the output shaft of socket motor 1, stretches out axis hole two in the axis hole of shaft coupling 28
It is continued on output shaft in the output shaft hole for the screw rod being socketed in shaft coupling 1；Between shaft coupling 1 and shaft coupling 28,
Elastomer cushion 10, rushing when exactly 10 damper push rod 2 of elastomer cushion moves back and forth are socketed on the output shaft of motor 1
Power.
It is preferred that being provided with screw thread on the output shaft of motor 1, after in output shaft insertion shaft joint 28, locking screw is used
Mother 11 fixes the position of shaft coupling 28, and the danger that shaft coupling 28 is detached from output shaft is greatly lowered, and guarantees a subsequent system
The component of column is firm.
Push rod 2 is the Axle Parts with certain length, in the process of running, due to the original with certain length
Cause the case where inevitably will appear offset in the process or shake, therefore is socketed guide sleeve 12, guide sleeve in the free end of screw rod 3
Cooperation trueness error between 12 and push rod 2 is no more than 0.5 millimeter, and guide sleeve 12 plays the role of a correction, leads push rod 2
It advances according to original track.
Certain guide sleeve 12 needs other component to be supported, therefore is socketed cylinder sleeve in the outside of power actuation system
13, one end of cylinder sleeve 13 is fixed on motor 1, and guide sleeve 12 is fixed on cylinder sleeve 13, and cylinder sleeve 13 not only acts as the effect of support,
The cleaning of the components such as power actuation system is protected simultaneously.Cylinder sleeve 13 can be split type structure, the cylinder sleeve 13 of support guide set 12
It is an independent part.
Simultaneously because shaft coupling 1 needs and then output shaft rotation, therefore it is socketed bearing 14 in the periphery of shaft coupling 1,
The periphery socket bearing block 15 of bearing 14, bearing block 15 form independent a part of cylinder sleeve 13 again, and cylinder barrel 13 uses profile system
It makes.
Scraper 16 is arranged in one end of guide sleeve 12 in cylinder sleeve, and sealing ring is arranged in scraper 16 and guide sleeve 12 on push rod
22, guarantee that the welding slag and sundries under complicated welding operating condition can be removed when push rod 2 does linear reciprocating motion, keeps push rod 2 and silk
The cleaning of bar 3.
Connecting shaft 17 is installed in 2 free end of push rod, is equipped with universal bearing 18 in the connecting shaft 17.Universal bearing 18 exists
With can compensate for the error as caused by rigging error and mismachining tolerance in soldering turret connection procedure.
It is additionally provided with pump nozzle 19 in the connecting shaft 17, oil inlet passage, the inlet nozzle 19 are provided on the screw rod 3
It is connected to oil inlet passage, when after a period of use can be by pump nozzle 19 to 3 shot lubrication grease of screw rod.
It is equipped with cushion 20 in connecting shaft 17, can avoid hard contact when motor push rod 2 returns, play buffer function.Silk
3 front end of bar is equipped with anticreep washer 21, can avoid deviating from when nut beyond stroke.
According to Fig.4, there are two types of the mounting means of direct-connected servo motor and soldering turret: one, 13 two sides of cylinder sleeve are equipped with spiral shell
Line and pin hole can be used for directly fixing on soldering turret；Two bearing bracket two sides are equipped with trunnion fixed block 23, and motor can be fixed by trunnion
The mode of block 23 is fixedly connected on soldering turret.
Fig. 5 gives other cases of modularized design of the invention, which can match common mainstream weldering
Welding robot motor such as ABB motor 1-1, Motoman motor 1-2, Kuka motor 1-3 etc..Connecting shaft is suitable for matching connection c-type
On soldering turret.
When use, connecting shaft 17 is directed at object to be welded first, later starter motor, motor drives push rod to contact quilt
Weld object.The position of connecting shaft 17 can be adjusted by universal bearing.
The above is only the preferred embodiments of the embodiment of the present invention, are not intended to limit the invention embodiment, all at this
Within the spirit and principle of inventive embodiments, any modification, equivalent replacement, improvement and so on be should be included in of the invention real
It applies in the protection scope of example.
Claims (8)
1. a kind of direct-connected servo motor for resistance spot welding, including power actuation system, the power device；Its feature exists
In: power actuation system is installed in the power device；The power actuation system includes push rod, and axis hole one is arranged in push rod,
Screw rod is installed in the axis hole one, one end of the screw rod is connect with power device, and the power device drives screw rod movement；Silk
There is gap, the set connected nut being adapted on the screw rod is bonded between the nut and push rod, screw rod rotation between bar and axis hole one
Turn, the nut can push push rod straight reciprocating motion.
2. the direct-connected servo motor according to claim 1 for resistance spot welding, it is characterised in that: the power executes
System further includes shaft joint one, axis device two；The screw rod is socketed in the axis hole of shaft coupling one, while one end setting of screw rod is defeated
Shaft outlet hole, the output shaft are inserted in the output shaft hole of screw rod；The output shaft also extends through shaft coupling two, the shaft coupling two
It is connect with power device.
3. the direct-connected servo motor according to claim 2 for resistance spot welding, it is characterised in that: wherein shaft joint one
Between shaft coupling two, elastomer cushion is socketed on the output shaft of power device, the elastomer cushion buffering pushes away
Impulse force when bar moves back and forth.
4. the direct-connected servo motor according to claim 1 for resistance spot welding, it is characterised in that: in the axis hole one
Groove is set, keyway and spline are set between the groove and nut, are connected to one by spline between the nut and push rod
It rises.
5. the direct-connected servo motor according to claim 1 for resistance spot welding, it is characterised in that:
The periphery socket cylinder sleeve of the power actuation system, the cylinder sleeve is split type structure；Wherein the free end of push rod surrounds
There is guide sleeve, the guide sleeve is fixed on cylinder sleeve, provides support for the movement of push rod.
6. the direct-connected servo motor according to claim 4 for resistance spot welding, it is characterised in that: free close to push rod
At end position, scraper is also set up on cylinder sleeve, the scraper strikes off the sundries on screw rod.
7. the direct-connected servo motor according to claim 1 for resistance spot welding, it is characterised in that: the push rod is free
End is equipped with connecting shaft, and the connecting shaft is equipped with universal bearing.
8. the direct-connected servo motor according to claim 6 for resistance spot welding, it is characterised in that: in the connecting shaft
It is provided with pump nozzle, oil inlet passage is provided on the screw rod, the inlet nozzle is connected to oil inlet passage, for adding in pump nozzle
Enter lubricating oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910696490.6A CN110266142A (en) | 2019-07-30 | 2019-07-30 | A kind of direct-connected servo motor for resistance spot welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910696490.6A CN110266142A (en) | 2019-07-30 | 2019-07-30 | A kind of direct-connected servo motor for resistance spot welding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110266142A true CN110266142A (en) | 2019-09-20 |
Family
ID=67912375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910696490.6A Pending CN110266142A (en) | 2019-07-30 | 2019-07-30 | A kind of direct-connected servo motor for resistance spot welding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110266142A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114161675A (en) * | 2021-11-25 | 2022-03-11 | 丰铁塑机(广州)有限公司 | Servo slide mechanism |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201063481Y (en) * | 2007-07-07 | 2008-05-21 | 宁波探索机械制造有限公司 | Brake type electric push rod |
| CN206180761U (en) * | 2016-10-19 | 2017-05-17 | 帝悦精密科技（苏州）有限公司 | Orthoscopic electric servo cylinder |
| WO2017148360A1 (en) * | 2016-02-29 | 2017-09-08 | 天津科为客科技有限公司 | Linear transmission device, disassembly method, and linear transmission device capable of preventing jamming due to preloading |
| CN207382121U (en) * | 2017-10-09 | 2018-05-18 | 中国船舶重工集团公司第七0四研究所 | A kind of servo electric jar of oil-free grease lubrication |
| CN210350944U (en) * | 2019-07-30 | 2020-04-17 | 韦孚（杭州）精密机械有限公司 | Direct-connected servo motor for resistance spot welding |
-
2019
- 2019-07-30 CN CN201910696490.6A patent/CN110266142A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201063481Y (en) * | 2007-07-07 | 2008-05-21 | 宁波探索机械制造有限公司 | Brake type electric push rod |
| WO2017148360A1 (en) * | 2016-02-29 | 2017-09-08 | 天津科为客科技有限公司 | Linear transmission device, disassembly method, and linear transmission device capable of preventing jamming due to preloading |
| CN206180761U (en) * | 2016-10-19 | 2017-05-17 | 帝悦精密科技（苏州）有限公司 | Orthoscopic electric servo cylinder |
| CN207382121U (en) * | 2017-10-09 | 2018-05-18 | 中国船舶重工集团公司第七0四研究所 | A kind of servo electric jar of oil-free grease lubrication |
| CN210350944U (en) * | 2019-07-30 | 2020-04-17 | 韦孚（杭州）精密机械有限公司 | Direct-connected servo motor for resistance spot welding |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114161675A (en) * | 2021-11-25 | 2022-03-11 | 丰铁塑机(广州)有限公司 | Servo slide mechanism |
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