CN201799771U - Spot welder - Google Patents
Spot welder Download PDFInfo
- Publication number
- CN201799771U CN201799771U CN2010201754323U CN201020175432U CN201799771U CN 201799771 U CN201799771 U CN 201799771U CN 2010201754323 U CN2010201754323 U CN 2010201754323U CN 201020175432 U CN201020175432 U CN 201020175432U CN 201799771 U CN201799771 U CN 201799771U
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- Prior art keywords
- piston
- cylinder
- air cylinder
- electrode part
- piston rod
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Abstract
The utility model discloses a spot welder, which comprises a stand, an upper electrode part, a lower electrode part and an air cylinder (1), wherein an air cylinder wall (2) of the air cylinder (1) is fixed with the stand; a first piston rod (4) of the air cylinder (1) is arranged in a bottom cover (5) of the air cylinder (1) in a sliding fit manner; the lower electrode part is fixed on the stand; a first air hole (6) is formed at the bottom end of the air cylinder (1); the air cylinder (1) also comprises a second piston (7); a second piston rod (12) is arranged in a top cover (8) of the air cylinder (1) in a sliding fit manner; a second air hole (9) passes through the center of the second piston (7); a third air hole (10) is formed at the top end of the air cylinder (1); threads are arranged at the part of the second piston rod (12) of the second piston (7), which protrudes out of the top cover (8) of the air cylinder (1); and a limiting block (11) is screwed at the thread part of the second piston rod (12) of the second piston (7). The spot welder ensures that the welding process is time-saving and highly efficient and consumes less gas.
Description
Technical field
The utility model relates to welding technology field, specifically is a kind of mash welder.
Background technology
The mash welder of prior art comprises frame, top electrode part, bottom electrode part and double-acting cylinder, the cylinder wall and the frame of described double-acting cylinder are fixed, the piston rod of the piston of described cylinder be slidingly tied in the centre bore of cylinder bottom and with the top electrode partial fixing, described bottom electrode partial fixing is on frame, the bottom of described cylinder is provided with first pore, the top of described cylinder is provided with second pore, and described first pore and second pore all are communicated with reversal valve.
During this mash welder work, the piston that drives double-acting cylinder earlier rises, drive top electrode and partly rise to the cylinder wall top, at this moment, distance between top electrode part and the bottom electrode part is greater than the height of weldment, then weldment is shelved on the bottom electrode part, by reversal valve gas circuit is commutated again, make the piston of cylinder descend, driving the top electrode part is pressed on weldment between bottom electrode part and the top electrode part, on-load voltage between top electrode part and bottom electrode part then again makes the electric current weldment heat that has a resistance of flowing through, and welds with this.
There is following defective in the mash welder of above prior art: because the stroke of this mash welder two-way cylinder is fixed, so before each weldment workpiece, the necessary same height of lifting, be that piston must rise to the cylinder wall top, and the size disunity of weldment, when welding some small-sized weldment, only need piston a little a bit of distance of lifting can lay weldment, but this moment, piston still will be lifted to the top of cylinder wall, like this, welded length consuming time, efficient is low and air consumption is big; And, because when weldment is soldered, contact site thawing mutually causes the weldment height dimension to reduce, the height of weldment in instantaneous meeting less than the distance between top electrode part and the bottom electrode part, and the reaction of the piston of cylinder often lags behind reducing of weldment height, like this, the weldment utmost point from power on partly and between the bottom electrode part gets loose, and influences weldment quality and precision.
The utility model content
The technical problems to be solved in the utility model is to provide a kind of and can make welding process weak point consuming time, efficient height and the little mash welder of air consumption.
Technical solution of the present utility model is, a kind of mash welder with following structure is provided, it comprises frame, the top electrode part, bottom electrode part and cylinder, the cylinder wall and the frame of described cylinder are fixed, the first piston bar of the first piston of described cylinder be slidingly tied in the centre bore of bottom of cylinder and with the top electrode partial fixing, described bottom electrode partial fixing is on frame, the bottom of described cylinder is provided with first pore that is communicated with reversal valve, described cylinder also comprises second piston that is positioned at the first piston top, second piston rod of described second piston is slidingly tied in the centre bore of cylinder top cover, the center of described second piston is penetrated with second pore that is communicated with reversal valve, described cylinder top is provided with the 3rd pore, the part that second piston rod of described second piston protrudes the cylinder top cover is provided with screw thread, is combined with a limited block on the threaded portion of second piston rod of described second piston.
After adopting above structure, the utility model mash welder compared with prior art has the following advantages:
Because described cylinder also comprises second piston that is positioned at the first piston top, the piston rod of described second piston is slidingly tied in the centre bore of cylinder top cover, the center of described second piston is penetrated with second pore that is communicated with reversal valve, described cylinder top is provided with the 3rd pore, the part that the piston rod of described second piston protrudes the cylinder top cover is provided with screw thread, hang on the threaded portion of the piston rod of described second piston and closed a limited block, like this, when in the 3rd pore, inflating, second piston will move down under gas pressure, pushed against in cylinder top until limited block and to be covered, the position of second piston that be limited block with respect to the determining positions of the piston rod of second piston with respect to cylinder wall, and limited block can be regulated during with respect to the position of piston rod, so, people just can regulate the relative position of second piston in cylinder by the rotary stopper piece, and the lower position of second piston can determine the upper limit position of first piston, to sum up, people can be according to the size height of weldment, adjust the upper limit position of first piston by the rotary stopper piece, the workpiece little as size, the first piston upper limit position is low, the workpiece that size is big, first piston upper limit position height, like this, the stroke of first piston is more suitable for the size of workpiece, welding process weak point consuming time, efficient height and air consumption reduce.
As improvement, the first piston bar of described first piston is a segmented, is provided with spring between every section, like this, when the soldered height dimension of weldment reduced, spring can compensate automatically to the size that reduces, remain top electrode and partly be pressed on the workpiece, so can improve welding quality and precision.
Description of drawings
Fig. 1 is the structural representation of the utility model mash welder.
Fig. 2 is the broken section structural representation of the cylinder of the utility model mash welder.
Shown in the figure
1, cylinder, 2, cylinder wall, 3, first piston, 4, the first piston bar, 5, bottom, 6, first pore, 7, second piston, 8, top cover, 9, second pore, the 10, the 3rd pore, 11, limited block, 12, second piston rod, 13, hole, 14, limited step, 15, spring, 16, position limiting convex ring, 17, epimere, 18, hypomere, 19, the top electrode part, 20, bottom electrode part, 21, frame.
The specific embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
As shown in Figure 1 and Figure 2, the utility model mash welder, it comprises frame 21, top electrode part 19, bottom electrode part 20 and cylinder 1.The cylinder wall 2 of described cylinder 1 is fixing with frame 21, and the first piston bar 4 of the first piston 3 of described cylinder 1 is slidingly tied in the centre bore of bottom 5 of cylinder 1 and is fixing with top electrode part 19.Described bottom electrode part 20 is fixed on the frame 21, and the bottom of described cylinder 1 is provided with first pore 6 that is communicated with reversal valve.Described cylinder 1 also comprises second piston 7 that is positioned at first piston 3 tops.Second piston rod 12 of described second piston 7 is slidingly tied in the centre bore of cylinder 1 top cover 8.The center of described second piston 7 is penetrated with second pore 9 that is communicated with reversal valve.Described cylinder 1 top is provided with the 3rd pore 10.The part that second piston rod 12 of described second piston 7 protrudes cylinder 1 top cover 8 is provided with screw thread, is combined with a limited block 11 on the threaded portion of second piston rod 12 of described second piston 7.
The first piston bar 4 of described first piston 3 is a segmented, be provided with spring 15 between every section, the first piston bar 4 that is described first piston 3 is divided into hypomere 18 and epimere 17, the upper end of described hypomere 18 is provided with hole 13, described epimere 17 slip caps are combined in the hole 13 of hypomere 18, be provided with limited step 14 in the described hole 13, be provided with spring 15 between the limited step 14 in the hole 13 of the lower surface of described epimere 17 and hypomere 18, the upper end of described epimere 17 is provided with position limiting convex ring 16, and described position limiting convex ring 16 pushes against the upper surface at hypomere 18.
Claims (2)
1. mash welder, it comprises frame (21), top electrode part (19), bottom electrode part (20) and cylinder (1), the cylinder wall (2) of described cylinder (1) is fixing with frame (21), the first piston bar (4) of the first piston (3) of described cylinder (1) is slidingly tied in the centre bore of bottom (5) of cylinder (1) and is fixing with top electrode part (19), described bottom electrode part (20) is fixed on the frame, the bottom of described cylinder (1) is provided with first pore (6) that is communicated with reversal valve, it is characterized in that: described cylinder (1) also comprises second piston (7) that is positioned at first piston (3) top, second piston rod (12) of described second piston (7) is slidingly tied in the centre bore of cylinder (1) top cover (8), the center of described second piston (7) is penetrated with second pore (9) that is communicated with reversal valve, described cylinder (1) top is provided with the 3rd pore (10), the part that second piston rod (12) of described second piston (7) protrudes cylinder (1) top cover (8) is provided with screw thread, is combined with a limited block (11) on the threaded portion of second piston rod (12) of described second piston (7).
2. mash welder according to claim 1 is characterized in that: the first piston bar (4) of described first piston (3) is a segmented, is provided with spring (15) between every section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201754323U CN201799771U (en) | 2010-04-26 | 2010-04-26 | Spot welder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201754323U CN201799771U (en) | 2010-04-26 | 2010-04-26 | Spot welder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201799771U true CN201799771U (en) | 2011-04-20 |
Family
ID=43869288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201754323U Expired - Fee Related CN201799771U (en) | 2010-04-26 | 2010-04-26 | Spot welder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201799771U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103158006A (en) * | 2011-12-08 | 2013-06-19 | 苏州工业园区高登威科技有限公司 | System used for manufacturing clamp |
-
2010
- 2010-04-26 CN CN2010201754323U patent/CN201799771U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103158006A (en) * | 2011-12-08 | 2013-06-19 | 苏州工业园区高登威科技有限公司 | System used for manufacturing clamp |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110420 Termination date: 20130426 |