CN205520057U - Resistance welder - Google Patents
Resistance welder Download PDFInfo
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- CN205520057U CN205520057U CN201620192495.7U CN201620192495U CN205520057U CN 205520057 U CN205520057 U CN 205520057U CN 201620192495 U CN201620192495 U CN 201620192495U CN 205520057 U CN205520057 U CN 205520057U
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- main shaft
- frame
- transfer arm
- bearing
- arm
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Abstract
The utility model discloses a resistance welder, including drive arrangement, fixed arm, transfer arm, welder body, the welder body includes frame and power, and the power is fixed in the frame, and the fixed arm links firmly with the frame, and the transfer arm passes through rotating device and hinged rack, rotating device includes that main shaft and cover establish at main epaxial bearing, and the main shaft links firmly with the frame, and the outer lane and the transfer arm of bearing link firmly. Rotating device adopts the combination of main shaft and bearing, has increased rotating device's flexibility, and it is little wear and tear, prevents to wear and tear because of the main shaft to lead to two electrodes can not the centering and influence welding quality.
Description
Technical field
This utility model belongs to electric resistance welding equipment technical field, is specifically related to a kind of Resistance welding gun.
Background technology
Electric resistance welding heat time heating time is short, heat is concentrated, heat affected area is little, deformation is little with stress, need not the filler metal such as welding wire, welding rod, welding cost is low, simple to operate, it is easily achieved mechanization and automatization, productivity ratio height, and noiseless and harmful gas, it is widely used in manufacturing industry based on these advantage electric resistance weldings.
In recent years, robot welder is favored because efficiency is high, welding quality is good, the fixed arm of existing robot Resistance welding gun is fixed in frame, transfer arm is hinged in frame by rotating shaft, current rotating shaft uses self-lubricating copper sheathing and the structure of main shaft, and self-lubricating copper sheathing easily weares and teares along with frequently rotating of transfer arm, causes the electrode on fixed arm, transfer arm centering can not affect welding quality, need often to change rotating shaft, increase use cost.
Summary of the invention
The purpose of this utility model is to provide the rotating shaft of a kind of Resistance welding gun, solves the technical problem of robot Resistance welding gun rotating shaft serious wear in prior art.
In order to solve this technical problem, originally it is to adopt the following technical scheme that diligently
Resistance welding gun, including driving means, fixed arm, transfer arm, torch body；Described torch body includes frame and power supply, and power supply is fixed in frame, and fixed arm is connected with frame, and transfer arm is hinged with frame by tumbler；Described tumbler includes that main shaft and the bearing being set on main shaft, main shaft are connected with frame, and the outer ring of bearing is connected with transfer arm.
Fixed arm, the front end of transfer arm are separately installed with electrode, and the positive and negative electrode of power supply is respectively by cable and the electrode conduction on fixed arm, transfer arm；When welding, driving means drives transfer arm around main axis, makes two electrodes compress welding workpiece, and imposes electric current, the resistance heat effect utilizing electric current to flow through work piece interface and adjacent domain generation is heated to fusing or mecystasis, reaches the purpose that workpiece combines.The electrode diameter installed on fixed arm, transfer arm is less, it is about 6mm, only two electrode centering guarantee welding qualities in welding process, it is thus desirable to ensure that transfer arm can not offset when around main axis, the combination using main shaft and bearing adds the motility of tumbler, wear and tear little, prevent because spindle abrasion cause two electrodes can not centering and affect welding quality.
Improving further, described bearing is double-row roller bearing, and radially bearing capacity is big, it is adaptable to bear heavy load and impact load, and coefficient of friction is little, motility is high, inner ring or outer ring is separable is easily installed and dismantles.
Improve further, described main shaft is provided with oil nozzle, periodically can add lubricating oil to tumbler, reduce abrasion, extend its service life long, reduce use cost.
Improving further, described main shaft is provided with keyway, main shaft passes through bonded with frame, mounting or dismounting, easy to maintenance.
This utility model has the advantages that
1, Resistance welding gun described in the utility model, tumbler uses main shaft and the combination of bearing, adds the motility of tumbler, wear and tear little, prevent because spindle abrasion cause two electrodes can not centering and affect welding quality.
2, by arranging oil nozzle on main shaft, periodically can add lubricating oil to tumbler, reduce abrasion, extend its service life long, reduce use cost.
3, bearing is double-row roller bearing, and radially bearing capacity is big, it is adaptable to bear heavy load and impact load, and coefficient of friction is little, motility is high, inner ring or outer ring is separable is easily installed and dismantles.
Accompanying drawing explanation
Fig. 1 is the structural representation of X-type welding gun.
Fig. 2 is the structural representation of tumbler.
Fig. 3 is the right view of Fig. 2.
Detailed description of the invention
In order to be more fully understood that this utility model, explain content of the present utility model below in conjunction with embodiment further, but content of the present utility model is not limited solely to the following examples.
As Figure 1-3, Resistance welding gun, including driving means 3, fixed arm 1, transfer arm 2, torch body；Described torch body includes frame 5 and power supply 4, and power supply 4 is fixed in frame, and fixed arm 1 is connected with frame, and transfer arm 2 is hinged with frame 5 by tumbler 6；Described tumbler 6 includes main shaft 61 and the bearing 62 being set on main shaft, and main shaft 61 is provided with oil nozzle, and bearing 62 is that double-row roller bearing main shaft 61 is connected with frame 5 by key, and the outer ring of bearing 62 is connected with transfer arm 2.
Fixed arm 1, the front end of transfer arm 2 are separately installed with electrode, and the positive and negative electrode of power supply 4 is respectively by cable and the electrode conduction on fixed arm 1, transfer arm 2；When welding, driving means 3 drives transfer arm 2 to rotate around main shaft 61, makes two electrodes compress welding workpiece, and imposes electric current, the resistance heat effect utilizing electric current to flow through work piece interface and adjacent domain generation is heated to fusing or mecystasis, reaches the purpose that workpiece combines.The electrode diameter installed on fixed arm 1, transfer arm 2 is less, it is about 6mm, only two electrode centering guarantee welding qualities in welding process, it is thus desirable to ensure that transfer arm 2 can not offset when rotating around main shaft 61, the combination using main shaft 61 and bearing 62 adds the motility of tumbler, wear and tear little, prevent because spindle abrasion cause two electrodes can not centering and affect welding quality.
This utility model does not does illustrate be prior art or can be realized by prior art, and be embodied as case described in this utility model and be only preferable case study on implementation of the present utility model, not it is used for limiting practical range of the present utility model.The most all equivalence changes made according to the content of this utility model claim and modification, all should be used as technology category of the present utility model.
Claims (4)
1. Resistance welding gun, it is characterised in that include driving means (3), fixed arm (1), transfer arm (2), torch body；Described torch body includes frame (5) and power supply (4), and power supply (4) is fixed in frame, and fixed arm (1) is connected with frame (5), and transfer arm (2) is hinged with frame (5) by tumbler (6)；Described tumbler (6) includes that main shaft (61) and the bearing (62) being set on main shaft (61), main shaft (61) are connected with frame (5), and the outer ring of bearing (62) is connected with transfer arm (2).
Resistance welding gun the most according to claim 1, it is characterised in that described bearing (62) is double-row roller bearing.
Resistance welding gun the most according to claim 1 and 2, it is characterised in that described main shaft is provided with oil nozzle on (61).
Resistance welding gun the most according to claim 3, it is characterised in that being provided with keyway on described main shaft (61), main shaft (61) and frame (5) are by bonded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620192495.7U CN205520057U (en) | 2016-03-14 | 2016-03-14 | Resistance welder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620192495.7U CN205520057U (en) | 2016-03-14 | 2016-03-14 | Resistance welder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205520057U true CN205520057U (en) | 2016-08-31 |
Family
ID=56782414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620192495.7U Active CN205520057U (en) | 2016-03-14 | 2016-03-14 | Resistance welder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205520057U (en) |
-
2016
- 2016-03-14 CN CN201620192495.7U patent/CN205520057U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhou Yifan Inventor after: Zhou Rongrong Inventor before: Dong Shuchun |
|
| COR | Change of bibliographic data |