CN202853234U - Steel support pin for freezer compressor - Google Patents
Steel support pin for freezer compressor Download PDFInfo
- Publication number
- CN202853234U CN202853234U CN201220421334.2U CN201220421334U CN202853234U CN 202853234 U CN202853234 U CN 202853234U CN 201220421334 U CN201220421334 U CN 201220421334U CN 202853234 U CN202853234 U CN 202853234U
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- welding
- steel supporting
- reduced
- supporting pin
- salient point
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Abstract
A steel support pin for a freezer compressor comprises a support column (10) and a welding part (2) formed on the end portion of the support column (10). The outer surface of the welding part (20) is a welding face (22). A protrusion point (222) is formed on the welding face (22). The steel support pin for the freezer compressor has the advantages that the occurrence of cold solder joint of the steel support pin is reduced or eradicated, welding slag and the phenomenon of spatter are greatly reduced, welding power is reduced, energy loss is reduced, service life of electrodes is prolonged, production cost is reduced, precision requirements for flatness and height of an upper electrode and a lower electrode are reduced, tool adjusting time is greatly shortened, and production efficiency is effectively improved.
Description
Technical field
The utility model relates to a kind of spare and accessory parts of freezer compressor, specifically a kind of freezer compressor steel supporting pin.
Background technology
Utilize electric current to pass through the contact-making surface of weldment joint and the resistance energy heat of adjacent domain generation, welded METAL HEATING PROCESS to local melting or the mecystasis that reaches a high temperature, is formed the firmly technical process of welding point under the effect of external force, be called electric resistance welding.Electric resistance welding method commonly used has spot welding, several forms such as seam weldering, projection welding and butt welding.
Steel supporting pin and lower house adopt the projection welding in the electric resistance welding, as illustrated in fig. 1 and 2, on each solder side 12 of traditional steel supporting pin 1 three salient points 122 are arranged, consult simultaneously shown in Figure 3, existing welding manner adopts four steel supporting pins 1 to weld simultaneously, namely at first the face of weld of steel supporting pin 1 and compressor housing 2 is processed, remove the oxide skin(coating) dirt, oil and other impurity are to reduce contact resistance, steel supporting pin 1 is placed on the bottom electrode 3, housing 2 places on the positioning disk (not shown) of welding tooling, cylinder falls to driving top electrode 4 and falls together housing 2 and 1 compacting of steel supporting pin, indirect current between top electrode 4 and bottom electrode 3 then, can between steel supporting pin 1 salient point and housing 2, form nugget, thereby steel supporting pin 1 is connected together with housing 2.
Welding current, conduction time and welding pressure are three large key elements of electric resistance welding.Because the salient point number is more, welding needed heat increases greatly, and this just requires the also corresponding increase of welding current and conduction time, has not only increased power attenuation, has also prolonged productive temp, has reduced production efficiency.For improving weld strength increase of weld current and time, so that the scaling loss degree to electrode increases in the welding process, in the service life of having reduced electrode, increased production cost simultaneously.
Because the size of each salient point and highly variant, the combined influence of the factors such as the bottom electrode height in the variant and welding tooling of housing solder side flatness and flatness difference, when adopting the welding of three salient point steel supporting pins, 4 steel supporting pins amount to four solders side of 12 salient points and lower houses and can not all contact well, when top electrode presses down, the salient point that has contacts with housing closely, the not contact that has, the salient point that has and housing contact area are large, the contact area that has is little, the inconsistent contact resistance of each salient point that causes of contact area differs greatly, when the energising welding, the welding heat difference that each salient point produces is also very large, thereby causes the salient point welding that has effective, and the welding weak effect that has even salient point be fusing not, so that four rear intensity of steel supporting pin welding are unstable, rosin joint often occurs, and splashes, the welding slag phenomenon is also very serious, the compressor quality is caused have a strong impact on.And for reducing various variance factors to the impact of welding, the requirement of butt welding machine frock and electrode precision is very harsh, thereby the frock that has increased production line is adjusted the time, has had a strong impact on the raising of production efficiency.
The utility model content
The frock that the technical problems to be solved in the utility model provides a kind of service life of enhancing productivity, prolonging electrode, reduce production costs, reduce rosin joint and welding slag in the welding process, splash, reduce production line is adjusted the freezer compressor steel supporting pin of time.
The utility model solves the problems of the technologies described above by the following technical solutions: a kind of freezer compressor steel supporting pin, the weld part (20) that comprises support column (10) and be integrally formed in an end of support column (10), the outer surface of described weld part (20) is solder side (22), and a salient point (222) is arranged on the described solder side (22).
The utility model can further be optimized for: described salient point (222) is positioned at the central authorities of solder side (22).
The utility model can further be optimized for: described salient point (222) is circular solder joint.
The utility model can further be optimized for: the salient point of described circle (222) is coaxial with described support column (10) and described solder side (22).
The utility model has the advantage of: reduce even stopped steel supporting pin rosin joint, welding slag and splash phenomena also greatly reduce; Reduce bonding power, reduced energy loss; Prolong the service life of electrode, reduced production cost; And reduced the flatness of upper/lower electrode and the required precision of height, greatly shorten frock and adjusted the time, effectively raise production efficiency.
Description of drawings
Fig. 1 is current refrigerator compressor steel supporting pin front view.
Fig. 2 is current refrigerator compressor steel supporting pin upward view.
Fig. 3 is the welding tooling structure chart that the current refrigerator compressor is used steel supporting pin and lower shells of compressors.
Fig. 4 is the utility model freezer compressor steel supporting pin front view.
Fig. 5 is the utility model freezer compressor steel supporting pin upward view.
Fig. 6 is the welding tooling structure chart that the utility model freezer compressor is used steel supporting pin and lower shells of compressors.
The specific embodiment
Shown in Figure 4 and 5, the weld part 20 that the utility model freezer compressor comprises support column 10 and is integrally formed in an end of support column 10 with steel supporting pin 100.
The outer surface of described weld part 20 is solder side 22, and a salient point 222 is arranged on the described solder side 22.As preferred embodiment, this salient point 222 is positioned at the central authorities of solder side 22, and is preferred, and this salient point 222 is circular solder joint, and further, this circular salient point 222 is coaxial with described support column 10 and described solder side 22.
Consult simultaneously shown in Figure 6, steel supporting pin 100 and compressor housing 200 are welded, at first the face of weld of steel supporting pin 100 and compressor housing 200 is processed, remove the oxide skin(coating) dirt, oil and other impurity are to reduce contact resistance, steel supporting pin 100 placed bottom electrode 300 on thereafter, housing 200 places on the positioning disk (not shown) of welding tooling, cylinder falls to driving top electrode 400 and falls together housing 200 and only compacting of steel supporting pin 100, pressure is 0.4MPa, then between top electrode 400 and bottom electrode 300, pass to the 19KA alternating current, conduction time 20 cycles, can between the salient point 222 of steel supporting pin 100 and housing 200, form nugget, thereby steel supporting pin 100 is connected together with housing 200.
Existing general Dimensions Used in Shell of Refrigerator Compressor bonding machine is divided into two kinds according to the difference of the source of welding current: common power frequency AC welding set and medium frequency inverter DC welder, welding process all is: the workpiece → both hands of manually packing into are closed → are welded the pressurization energising → welding that puts in place → weld by start button → safety door and finish → weld the release → safety door that pressurizes and open → the weld cycle end.All be to make four steel supporting pins finish simultaneously welding by adjusting rational welding current, conduction time and welding pressure.The present invention passes through the salient point number of change steel supporting pin and the size and shape of salient point, and adjusts the welding that welding condition is finished the steel supporting pin, welding tooling and welding electrode structure is not done any change.
The present invention is by improving bump structure and the number of steel supporting pin, so that various variance factors reduce greatly to the harmful effect of welding, single salient point steel supporting pin and housing solder side contact the effect that contacts that effect is better than three salient point steel supporting pins and housing greatly, when four steel supporting pins weld with housing, four salient point contact resistances reach unanimity substantially, weld strength better and stable occurs without the rosin joint phenomenon, welding slag and splash less.
Secondly, because the minimizing of salient point number, needed total welding heat also reduces greatly during welding, so welding current and conduction time is corresponding reduction also, the minimizing of welding current has been saved electric energy simultaneously so that the risk that welder transformer is burned also reduces greatly, has improved production efficiency.Owing to reduced welding current, reduced welding heat, so that the scaling loss degree of welding electrode is reduced greatly, prolonged the service life of copper electrode, saved production cost.
At last; by reducing the salient point number of steel supporting pin, various variance factors are reduced, so that weld strength and outward appearance are to the harsh degree reduction of frock and electrode required precision on the impact of welding; so just reduce the shutdown of production line and adjusted the time, greatly improved production efficiency.
The above is only for the preferred embodiment of the invention; not in order to limit the invention; all in the invention spirit and principle within do any modification, be equal to and replace and improvement etc., all should be included within the protection domain of the invention.
Claims (4)
1. freezer compressor steel supporting pin, the weld part (20) that comprises support column (10) and be integrally formed in an end of support column (10), the outer surface of described weld part (20) is solder side (22), it is characterized in that: a salient point (222) is arranged on the described solder side (22).
2. freezer compressor as claimed in claim 1 steel supporting pin, it is characterized in that: described salient point (222) is positioned at the central authorities of solder side (22).
3. freezer compressor as claimed in claim 1 or 2 steel supporting pin, it is characterized in that: described salient point (222) is circular solder joint.
4. freezer compressor as claimed in claim 3 steel supporting pin, it is characterized in that: the salient point of described circle (222) is coaxial with described support column (10) and described solder side (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220421334.2U CN202853234U (en) | 2012-08-23 | 2012-08-23 | Steel support pin for freezer compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220421334.2U CN202853234U (en) | 2012-08-23 | 2012-08-23 | Steel support pin for freezer compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202853234U true CN202853234U (en) | 2013-04-03 |
Family
ID=47984420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220421334.2U Expired - Lifetime CN202853234U (en) | 2012-08-23 | 2012-08-23 | Steel support pin for freezer compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202853234U (en) |
-
2012
- 2012-08-23 CN CN201220421334.2U patent/CN202853234U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130403 |
|
| CX01 | Expiry of patent term |