CN202894637U - Column type locating and clamping mechanism of tube sheet automatic welder - Google Patents
Column type locating and clamping mechanism of tube sheet automatic welder Download PDFInfo
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- CN202894637U CN202894637U CN 201220369323 CN201220369323U CN202894637U CN 202894637 U CN202894637 U CN 202894637U CN 201220369323 CN201220369323 CN 201220369323 CN 201220369323 U CN201220369323 U CN 201220369323U CN 202894637 U CN202894637 U CN 202894637U
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- axle sleeve
- bar
- clamping mechanism
- locating
- positioning
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Abstract
The utility model relates to a column type locating and clamping mechanism of a tube sheet automatic welder, and belongs to the technical field of automation of welding. The column type locating and clamping mechanism of the tube sheet automatic welder is formed by a nut (1), a gasket (2), a steel wire ring (3), arc taper keys (4), a shaft sleeve (5), a brass sleeve (6), a pin (7), a cone central rod (8), and the like. Through manual operations, a locating mechanism is installed and inserted into a pipe, and the shaft shoulder of the brass sleeve on the upper portion of the shaft sleeve is in contact with a pipe mouth to achieve axial locating. Under the effect of the dead weight of a whole machine and manual pushing-inserting force downward, the cone central rod moves downward, three arc taper keys on the cylinder wall of the shaft sleeve are pushed to move outward along a radial direction and attached on the inner wall of the pipe tightly, and the radial locating is achieved. The locating mechanism can not rotate in a welding process, a handpiece installed on the upper portion of the cone central rod completes welding by rotating around the pipe mouth. When the mechanism is dismounted, the mechanism is pulled upward, the cone central rod moves upward, the radial stress of the arc taper keys is eliminated, and the locating and clamping mechanism is taken out as a whole. Experiment shows that the mechanism is compact in structure, accurate in locating, firm in clamping, simple and convenient to install and dismount, and effectively solves the locating and clamping problem of centering automatic welding of tube sheet corner circumferential weld.
Description
One, technical field
The utility model relates to a kind of pipe sheet for automatic welder positioning and clamping mechanism, belongs to solder technology and technical field of automation, the problems such as the location of solution pipe sheet for automatic welder mechanism design and clamping.
Two, background technology
Existing pipe sheet for automatic welder is all taked the welding that centers, and namely the centre of gyration of welding torch navigates to and the welded part center superposition, rotates to finish welding by welding torch around the mouth of pipe.Pipe sheet for automatic welder location clamping mode is generally taked center-pole or center-pole to add the expansion core body mechanism and is realized that mode commonly used is that center-pole adds the expansion core body mechanism.Traditional expansion core body is by the strain of expansion core material by self, is realized the location so that expansion core is shown consideration for tightly by inner wall of welded pipe.Structure and size to the expansion core body during pipe sheet for automatic welder work have all proposed strict demand, should accurate positioning, again fitting operation convenience.Because traditional expansion core body is not strong to the adaptability of welded bore size, add by the internal diameter of welded tube, circularity and usually have tolerance, in actual use, there are the shortcomings such as the location is not accurate enough, clamping is firm not, operation is easy not usually in traditional expansion core body structure, thereby has influence on quality and the efficient of Tube-sheet Welding.
Three, summary of the invention
1, technical thought
According to pipe sheet for automatic welder take the to center requirement of welding, the utility model takes conical centre's bar to add the formations such as axle sleeve, circular arc wedge key, move down by conical centre's bar, force the circular arc wedge key to move along the keyway outward radial, circular arc wedge key outer wall and pipe are close to, thereby realize the purpose of positioning and clamping.
2, technical scheme
A kind of column pipe sheet for automatic welder positioning and clamping mechanism that the utility model relates to, comprise conical centre's bar, axle sleeve, the circular arc wedge key, brass bushing, pin, wire loop, nut, the compositions such as packing ring, the cone shape hypomere of conical centre's bar is mounted in the axle sleeve, three arc wedge keys are installed in respectively on the axle sleeve in three keyways that penetrate barrel, mounting limit pin between axle sleeve top and the conical centre's bar, conical centre's bar can only move up and down and can not rotate by certain distance in axle sleeve, conical centre carries out axial limiting with nut in the bar lower end, the feature of this detent mechanism is: contact with the pipe upper port by the brass bushing shaft shoulder that is connected to axle sleeve upper end and realize axial location, conical centre's bar is by being subjected to gravity and the power that manually pushes and plugs moves down and forces three arc wedge keys radially to move and tube wall is close to the realization radial location and is clamped.
3, effective benefit
Support the use the column tube plate welder of this positioning and clamping mechanism, add the control system based on the PLC independent development, and with general welding equipment such as CO
2Gas shielded welding machines etc. support the use; see shown in accompanying drawing 6 and the accompanying drawing 7 through soldering test gained weld seam effect; test shows; this welding machine can be realized the uniform and automatic welding of tube sheet circular weld joint; each solder joint of tube head weld seam all drops on the radius circumference of control system setting, and welding quality is excellent, efficient is high.Simple compactness of this detent mechanism frame for movement, accurate positioning, clamping are firm, and welding machine rotates and satisfies the required locus of welding gun and Gesture.After finishing a welding interval, by lifting welding machine by hand and it being assigned in another pipe to be welded, implement next periodic weld, easy to operate light and handy.The detent mechanism of supporting different-diameter size can adapt to the tube sheet joint welding of different tube diameters, wall thickness, and this is a kind of low cost, practical pipe sheet for automatic welder, has higher economy and practicality.
Four, description of drawings
1, accompanying drawing 1 comprises (1) positioning and clamping mechanism, (2) train drive disk assembly, (3) motor housing parts, (4) welding torch clamping mechanism, (5) elevating mechanism, (6) radial movement mechanism for supporting the use the column tube plate welder structural representation of this positioning and clamping mechanism.
2, accompanying drawing 2 is the positioning and clamping mechanism installation diagram.Formed by (1) nut, (2) packing ring, (3) wire loop, (4) circular arc wedge key, (5) axle sleeve, (6) brass bushing, (7) pin, (8) conical centre bar etc.
3, accompanying drawing 3 is conical centre's bar part drawing.The multistage rotary structure, during assembling, left section is down, and the parts such as connecting bushing are installed; Right section up, and the parts such as rotatable motor housing are installed.
4, accompanying drawing 4 is shaft sleeve parts figure.The employing three-view diagram is expressed, cylinder-like structure, the external diameter of axle sleeve is more smaller than pore internal diameter in the Tube-sheet Welding, sleeve diameter is identical with the cone-shaped structure outside diameter of conical centre's bar, axle sleeve top has screw thread and pin-and-hole, uniformly on the barrel have three penetrating keyways that the circular arc wedge key be used for to be installed, have two V-type grooves on the sleeve outer surface.
5, accompanying drawing 5 is circular arc wedge key part drawing.The employing three-view diagram is expressed, two ends are the round end shape, small end thickness is identical with the axle sleeve wall thickness, inboard gradient is 3.43 °, the inner arc radius surface is identical with sleeve diameter, the lateral surface arc radius is identical with the axle sleeve external diameter, has two V-type grooves corresponding with the axle sleeve position, that size is identical on the outer arc face.
6, accompanying drawing 6 and accompanying drawing 7 are for supporting the use the column tube plate welder welded seam design sketch of positioning and clamping mechanism.
Five, the specific embodiment
Support the use this positioning and clamping mechanism the column tube plate welder structural representation as shown in Figure 1, comprise positioning and clamping mechanism, train drive disk assembly, motor housing parts, welding torch clamping mechanism, elevating mechanism, radial movement mechanism.
In this positioning and clamping mechanism, conical centre's bar is the centre of gyration of whole tube plate welder, the epimere of cylindrical shape is connected and installed welder head, the cone shape hypomere is connected and installed the parts such as axle sleeve of detent mechanism, tapering is 6.86 °, welder head is realized welding around conical centre's bar rotation during work, and conical centre's bar does not rotate.The external diameter of axle sleeve is than the little 1mm of pore internal diameter of Tube-sheet Welding, sleeve diameter is identical with the cone-shaped structure outside diameter of conical centre's bar, the axle sleeve upper end is threaded connection together with brass bushing, uniformly on the axle sleeve have a penetrating keyway that the arc wedge key be used for to be installed that three width are 10mm, the top cylindrical end of axle sleeve has place's pin-and-hole, having a width on the corresponding conical centre bar position is 6mm, length is the keyway of 28mm, the Length Ratio conical centre bar of keyway at work move axially the distance slightly long, by pin axle sleeve and conical centre's bar are coupled together, can play position-limiting action, axle sleeve and conical centre's bar generation relative rotary motion when preventing work.The circular arc wedge key width of two rounded shape is 10mm, circular arc wedge key small end thickness is identical with the axle sleeve wall thickness, the inner arc radius surface is identical with sleeve diameter, inboard gradient is 3.43 °, wedge key lateral surface arc radius is identical with the axle sleeve external diameter, on the arc surface in the outside, have two place's V-type grooves with axle sleeve same position place, at the V-type groove two wire loops with adjusting elasticity effect and positioning action are installed, prevent that the circular arc wedge key from coming off in the course of the work, guarantee to be linked together circular arc wedge key and axle sleeve all the time when mechanism works in different apertures, the groove depth size of V-type groove is larger than the diameter of wire loop, avoid wire loop to protrude the axle sleeve surface, guarantee that positioning and clamping mechanism can insert in the aperture fully.
The enforcement principle is: the welding of taking to center of this welder head, the centre of gyration of welding torch is navigated to the state that substantially overlaps with the welded part center, and rotate to finish welding by welding torch around the mouth of pipe.Before implementing welding job, by lifting design at the handle at top, but the position of integrated moving tube plate welder, the positioning and clamping mechanism of tube plate welder bottom is assigned in the pipe of tube sheet workpiece to be welded, the shaft shoulder of positioning and clamping mechanism upper end brass bushing contacts with tube end, the whole axial location that realizes of welding machine.In the deadweight of head and manually push and plug downwards under the effect of power, conical centre's bar moves down, and three arc wedge keys on the axle sleeve barrel are radially outwards mobile, are close on the inwall of pipe the radial location of positioning and clamping mechanism realization horizontal direction.According to above assembly relation, positioning and clamping mechanism at work, conical centre's bar can only be in axle sleeve along moving up and down certain distance, positioning and clamping mechanism just can accurately fixedly positioning in the pore of workpiece to be welded.
Assembling uses the column tube plate welder of this positioning and clamping mechanism to use easy and simple to handle, accurate positioning, clamping firm, and the equipment operation is smooth-going.
Claims (4)
1. column pipe sheet for automatic welder positioning and clamping mechanism, by conical centre's bar, axle sleeve, the circular arc wedge key, brass bushing, pin, wire loop, nut, the compositions such as packing ring, the cone shape hypomere of conical centre's bar is mounted in the axle sleeve, three arc wedge keys are installed in respectively on the axle sleeve in three keyways that penetrate barrel, mounting limit pin between axle sleeve top and the conical centre's bar, conical centre's bar can only move up and down and can not rotate by certain distance in axle sleeve, conical centre carries out axial limiting with nut in the bar lower end, the feature of this detent mechanism is: contact with the pipe upper port by the brass bushing shaft shoulder that is connected to axle sleeve upper end and realize axial location, be subjected to gravity and the power that manually pushes and plugs moves down and forces three arc wedge keys radially to be expanded to move and tube wall is close to the realization radial location and is clamped by conical centre's bar.
2. described a kind of column pipe sheet for automatic welder positioning and clamping mechanism according to claim 1, it is characterized in that: conical centre's bar of this positioning and clamping mechanism, be the multistage rotary structure, the epimere of cylindrical shape is connected and installed rotatable head, the hypomere of cone shape is connected and installed the location clamping parts such as axle sleeve, the cone outside diameter is identical with sleeve diameter, tapering is 6.86 °, have a spacing keyway on the shaft part on cone top, the width of keyway is 6mm, length is 28mm, keyway Length Ratio conical centre bar is located moving axially apart from slightly long when clamping in axle sleeve, carry out spacing by the pin that is installed on the axle sleeve to conical centre's bar.
3. described a kind of column pipe sheet for automatic welder positioning and clamping mechanism according to claim 1, it is characterized in that: the axle sleeve of this positioning and clamping mechanism, be cylinder-like structure, the external diameter of cover is than the little 1mm of pore internal diameter in the Tube-sheet Welding, sleeve diameter is identical with the cone-shaped structure outside diameter of conical centre's bar, and the axle sleeve upper end is threaded connection the brass bushing of the mounting strap bead shaft shoulder; Uniformly on the cylindric barrel of axle sleeve have three penetrating keyways that the arc wedge key be used for to be installed, keyway be pair rounded shape, and width of keyway is 10mm; The top of axle sleeve has place's pin-and-hole; Have two V-type grooves on the sleeve outer surface.
4. described a kind of column pipe sheet for automatic welder positioning and clamping mechanism according to claim 1, it is characterized in that: the circular arc wedge key of this positioning and clamping mechanism, be the wedge shape round end key, width of key is 10mm, small end thickness is identical with the axle sleeve wall thickness, and the inner arc radius surface is identical with sleeve diameter, and inboard gradient is 3.43 °, the lateral surface arc radius is identical with the axle sleeve external diameter, has two V-type grooves corresponding with the axle sleeve position, that size is identical on the outer arc face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220369323 CN202894637U (en) | 2012-07-30 | 2012-07-30 | Column type locating and clamping mechanism of tube sheet automatic welder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220369323 CN202894637U (en) | 2012-07-30 | 2012-07-30 | Column type locating and clamping mechanism of tube sheet automatic welder |
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| Publication Number | Publication Date |
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| CN202894637U true CN202894637U (en) | 2013-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220369323 Expired - Fee Related CN202894637U (en) | 2012-07-30 | 2012-07-30 | Column type locating and clamping mechanism of tube sheet automatic welder |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105149631A (en) * | 2015-10-26 | 2015-12-16 | 重庆市银钢一通科技有限公司 | Machine tool and clamp thereof |
| CN105710592A (en) * | 2016-04-28 | 2016-06-29 | 俞雪清 | Claw-free chuck for clamping pipes |
| CN110355523A (en) * | 2019-06-26 | 2019-10-22 | 中国船舶重工集团公司第七二五研究所 | A kind of positioning device and fixed-position welding method of heat exchanger tube sheet soldering and sealing |
| CN110834173A (en) * | 2019-11-15 | 2020-02-25 | 格力电器（武汉）有限公司 | Copper filter location frock |
| CN113289104A (en) * | 2021-06-07 | 2021-08-24 | 宁波开发区医院 | Anticoagulant injection device for hemodialysis |
-
2012
- 2012-07-30 CN CN 201220369323 patent/CN202894637U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105149631A (en) * | 2015-10-26 | 2015-12-16 | 重庆市银钢一通科技有限公司 | Machine tool and clamp thereof |
| CN105710592A (en) * | 2016-04-28 | 2016-06-29 | 俞雪清 | Claw-free chuck for clamping pipes |
| CN110355523A (en) * | 2019-06-26 | 2019-10-22 | 中国船舶重工集团公司第七二五研究所 | A kind of positioning device and fixed-position welding method of heat exchanger tube sheet soldering and sealing |
| CN110834173A (en) * | 2019-11-15 | 2020-02-25 | 格力电器（武汉）有限公司 | Copper filter location frock |
| CN113289104A (en) * | 2021-06-07 | 2021-08-24 | 宁波开发区医院 | Anticoagulant injection device for hemodialysis |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Column type locating and clamping mechanism of tube sheet automatic welder Effective date of registration: 20141126 Granted publication date: 20130424 Pledgee: Bank of Communications Ltd the Guangxi Zhuang Autonomous Region branch Pledgor: Dai Jianshu|Huang Zhengyan| He Jianhui Registration number: 2014990000995 |
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| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130424 Termination date: 20160730 |
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| CF01 | Termination of patent right due to non-payment of annual fee |