CN102284763B - Welding fixture - Google Patents
Welding fixture Download PDFInfo
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- CN102284763B CN102284763B CN 201110230771 CN201110230771A CN102284763B CN 102284763 B CN102284763 B CN 102284763B CN 201110230771 CN201110230771 CN 201110230771 CN 201110230771 A CN201110230771 A CN 201110230771A CN 102284763 B CN102284763 B CN 102284763B
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- tooth piece
- lower platen
- weld jig
- pressure plate
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Abstract
The invention relates to a welding fixture which comprises an upper pressure plate and a lower pressure plate, wherein the upper pressure plate and the lower pressure plate comprise central positioning holes which are arranged coaxially, the lower pressure plate is provided with a tooth block positioning hole, a tooth block mounting groove is arranged on the lower surface of the lower pressure plate and the welding fixture is characterized in that a tooth block positioning screw rod and a tooth block pressure spring are mounted between the upper pressure plate and the lower pressure plate. The welding fixture is simple in structure and can always keep the fastening connection between a tooth block and the welding surface of a basal body by high-temperature welding and avoid the phenomena of looseness and poor welding.
Description
Technical field
The present invention relates to a kind of weld jig, specifically, the present invention relates to a kind of anchor clamps of high frequency brazing diamond disk.
Background technology
Diamond disk has been widely used in the various aspects in grinding field.Diamond disk is the effective tool of grinding stone material, carbide alloy, glass, the contour crisp material of pottery.Diamond disk is prepared diamond segment and matrix respectively in the manufacturing process by diamond segment and matrix composition, and then adopts the process of welding that diamond segment is fixed on the matrix.In the prior art, the method that generally adopts is diamond segment sintering in vacuum hot-pressing equipment; The connection technology of cutter head and matrix adopts high-frequency induction brazing.
Soldering is one of three large chief components of modern welding technology.Conventional soldering is to adopt the solder lower than parent fusion temperature, and operating temperature is taked to be lower than the mother metal solidus and a kind of solder technology of being higher than the solder liquidus curve.The solder thawing remains solid-state for the liquid state mother metal during soldering, liquid solder is wetting on the gap of mother metal or surface, capillary flow, fill, sprawl, interact with mother metal (dissolving, diffusion or produce intermetallic compound), cooled and solidified form firmly joint, thereby mother metal is linked together.In order more to give full play to the advantage of diamond tool, the hold abrasive particle that overcomes the simultaneously plating diamond tool defective such as easily come off at first begins soldering is applied to the manufacturing of diamond tool abroad in the eighties of last century late nineteen eighties.High temperature brazing can realize chemical metallurgy combination on diamond, brazing alloy material and the metallic matrix interface, has higher bond strength, adamantine effective rate of utilization is high, life-span is long, simultaneously firmly chemical metallurgy combination is so that can be under the high-speed condition stable work of brazed diamond tool.
The factor that affects the brazed diamond tool quality mainly contains mode of heating, solder and brazing temperature.Mainly contain salt bath brazing, laser braze welding and high-frequency induction brazing for what mode of heating was used at present.
The high-frequency induction brazing heating-up temperature is high, and is non-contact heating, and the efficiency of heating surface is fast at a high speed, and easy control of temperature; Can local heat, realize easily automatically control; Operating environment is good, and is almost pollution-free.Required time of high-frequency induction heating is between LASER HEATING and resistance heated, generally effect in 30 seconds, this time has reduced adamantine fire damage degree better, also provides the enough reaction time for the interface generates continuous transition zone simultaneously, and the soldering effect is comparatively desirable.This kind mode of heating is used the most general at present.
In order to enhance productivity, we have developed integral solder technique, and operating efficiency is with respect to traditional soldering processes 50%-70% that can increase work efficiency.But when adopting integral braze-welded technique, to having relatively high expectations of brazing jig.Anchor clamps of the prior art adopt manually fixing, pneumatic fixing and magnechuck fixed form.Although pneumatic fixed form has larger improvement than manual fixed form, complex structure, the regulation of each joint piece needs a special cylinder, and the clamping force of each joint piece is difficult to consistent, and the efficient that is installed is still very low.Overcome inefficient defective although magnechuck is fixed, because the joint piece is to lean on magnetic-adsorption on the card of disk, restraining force is very little, along with the fusing of solder, weld seam shrinks, and between the joint piece after the welding and the matrix warpage can occur, produce distortion, affect the soldering adhesion strength.And adopt traditional manual weld jig, in integral braze-welded process, owing to be subject to the impact of high temperature, fixed screw gets loose easily; Cause when integral solder, clamping force of each joint piece is difficult to be consistent, and can not be close to and produces rosin joint thereby cause easily saving piece (tooth piece).
Summary of the invention
When adopting integral braze-welded welding in order to solve, weld jig is fixing not tight to the tooth piece under the high temperature, the inconsistent defective of clamping force.The present inventor has carried out creationary innovation to weld jig of the prior art, provides a kind of joint piece simple in structure, convenient to install and can guarantee the integral braze-welded welding fixture special of the diamond disk of welding quality stable.
In order to solve the problems of the technologies described above, the present invention has adopted following technical scheme:
A kind of weld jig, comprise top board and lower platen, top board and lower platen have the center positioning hole of coaxial setting, lower platen is provided with tooth piece locating hole, the lower surface of lower platen is provided with tooth piece mounting groove, it is characterized in that being equipped with between top board and the lower platen tooth piece positioning screw and tooth piece holddown spring.
Preferably, described lower platen also is provided with the auxiliary positioning hole, and described auxiliary positioning hole evenly arranges along donut, and preferably, the number in described auxiliary positioning hole is 3.
Preferably, described top board and lower platen are disc.
Preferably, described tooth piece mounting groove evenly arranges along donut.Preferably, the lower surface of lower platen is provided with two toothrow piece mounting grooves.
Preferably, the number of described positioning screw equates with the tooth piece number of diamond disk.Preferably, the profile of described tooth piece mounting groove is identical with the shape of cross section of tooth piece.
Preferably, described holddown spring is made by spring steel, for example widely used 60Si2MnA.In addition, the present invention has also developed a kind of used spring steel of holddown spring that is specially adapted to weld jig of the present invention, be used for to solve holddown spring causes fatigue failure under the high temperature thermal cycle technical problem, compare with 60Si2MnA, can double with holddown spring life-span of this spring steel manufacturing.The composition of described spring steel and content are: C:0.25-0.32wt%, Si:1.25-1.50wt%, Mn:1.0-1.25wt%, Cr:1.20-1.80wt%, Ni:2.20-4.25wt%, Mo:0.30-0.50wt%, V:0.015-0.025wt%, Nb:0.01-0.02wt%, Cu:0.25-0.35wt%, Zn:0.15-0.25wt%, P≤0.0015wt%, S≤0.0015wt%, surplus is Fe and inevitable impurity.Spring steel of the present invention can be by prior art the technique of arc smelting, LF refining, continuous casting and tandem rolling prepare, owing to belong to the known technology (for example as disclosed preparation technology in Chinese patent application 200910263020.7 specifications) of field of steel-making, will not tire out at this and state.
The operation principle of weld jig of the present invention is as follows: weld jig of the present invention mainly is made of elements such as top board, lower platen, tooth piece positioning screw and tooth piece holddown springs.In the time of welding, workpiece (being the diamond disc matrix) is placed on the workbench of rotation, place silver solder and scaling powder at the matrix surface that workpiece is to be brazed, the tooth piece is set thereon again, then the lower platen with weld jig is placed on the tooth piece, and so that the tooth piece overlaps with tooth piece locating slot, the center positioning hole that top board and lower platen are coaxial and the center-aligned of diamond disc matrix are utilized the centralized positioning screw rod so that diamond disc is fixed on the workbench of rotation; Then the tooth piece positioning screw on the anchor clamps is arranged on each tooth piece, and reverses the spring hitch on the holddown spring so that diamond disc matrix and tooth piece are fastenedly connected, then put on the ratio-frequency welding frame with rotating disk and weld.
Weld jig of the present invention is simple in structure, easy to use, and in high-temperature soldering, the spring expanded by heating can so that remain between the solder side of tooth piece and matrix and be fastenedly connected, can not produce loosening, as rosin joint can not occur phenomenon.Weld jig of the present utility model is specially adapted to integral braze-welded technique, when improving soldering efficient, can also guarantee enough adhesion strengths.
Description of drawings
Fig. 1 is the block diagram of the weld jig of one embodiment of the invention.
Fig. 2 is the component assemble schematic diagram of the weld jig of one embodiment of the invention.
The specific embodiment
The present invention will be further explained and explanation in connection with accompanying drawing and specific embodiment in following the present invention.The applicant is that embodiment and accompanying drawing only are in order to further specify technical scheme of the present invention, it must not to be interpreted as the restriction to the invention protection domain what this need to declare.
Embodiment 1
Be block diagram and the component assemble schematic diagram of the weld jig of one embodiment of the invention referring to Fig. 1-2.Can be found out by Fig. 1-2, the weld jig of present embodiment, comprise disc top board (1) and disc lower platen (2), top board (1) and lower platen (2) all have the center positioning hole (3) of coaxial setting, lower platen (2) is provided with tooth piece locating hole (21), the lower surface of lower platen (2) arranges tooth piece mounting groove (22), it is characterized in that mounting teeth piece positioning screw (5) and tooth piece holddown spring (6) between top board (1) and the lower platen (2); Described lower platen also evenly is provided with 3 auxiliary positioning holes (4) along donut; The equal diameters of top board (1) and lower platen (2) wherein; Described tooth piece mounting groove (22) evenly arranges along donut, and the lower surface of lower platen (2) is provided with two toothrow piece mounting grooves (22); The number of described positioning screw (5) equates with the tooth piece number of diamond disk; And the profile of described tooth piece mounting groove (22) is identical with the shape of cross section of tooth piece.
The structure of weld jig is with embodiment 1; Difference is that the used spring steel of holddown spring has following composition and content: the composition of described spring steel and content are: C:0.25-0.32wt%, Si:1.25-1.50wt%, Mn:1.0-1.25wt%, Cr:1.20-1.80wt%, Ni:2.20-4.25wt%, Mo:0.30-0.50wt%, V:0.015-0.025wt%, Nb:0.01-0.02wt%, Cu:0.25-0.35wt%, Zn:0.15-0.25wt%, P≤0.0015wt%, S≤0.0015wt%, surplus is Fe and inevitable impurity.
The above; it only is preferred embodiment of the present invention; can not be interpreted as limiting scope of the present invention with this, the embodiment of all distortion that is equal to of making in the claimed scope of claims of the present invention and change is all in the scope of protection of present invention.
Claims (8)
1. weld jig, comprise top board and lower platen, top board and lower platen have the center positioning hole of coaxial setting, lower platen is provided with tooth piece locating hole, the lower surface of lower platen is provided with tooth piece mounting groove, it is characterized in that being equipped with between top board and the lower platen tooth piece positioning screw and tooth piece holddown spring, the material of described tooth piece holddown spring is spring steel, the composition of described spring steel and content are: C:0.25-0.32wt%, Si:1.25-1.50wt%, Mn:1.0-1.25wt%, Cr:1.20-1.80wt%, Ni:2.20-4.25wt%, Mo:0.30-0.50wt%, V:0.015-0.025wt%, Nb:0.01-0.02wt%, Cu:0.25-0.35wt%, Zn:0.15-0.25wt%, P≤0.0015wt%, S≤0.0015wt%, surplus is Fe and inevitable impurity.
2. weld jig according to claim 1 is characterized in that described lower platen also is provided with the auxiliary positioning hole, and described auxiliary positioning hole evenly arranges along donut.
3. weld jig according to claim 2, the number that it is characterized in that described auxiliary positioning hole is 3.
4. weld jig according to claim 1 is characterized in that described tooth piece mounting groove evenly arranges along concentric circles.
5. weld jig according to claim 4 is characterized in that the lower surface of described lower platen is provided with two toothrow piece mounting grooves.
6. weld jig according to claim 1 is characterized in that the number of described tooth piece positioning screw equates with tooth piece number.
7. weld jig according to claim 6 is characterized in that the profile of described tooth piece mounting groove is identical with the shape of cross section of tooth piece.
8. weld jig according to claim 6 is characterized in that described top board and lower platen are disc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110230771 CN102284763B (en) | 2011-08-12 | 2011-08-12 | Welding fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110230771 CN102284763B (en) | 2011-08-12 | 2011-08-12 | Welding fixture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102284763A CN102284763A (en) | 2011-12-21 |
| CN102284763B true CN102284763B (en) | 2013-04-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201110230771 Expired - Fee Related CN102284763B (en) | 2011-08-12 | 2011-08-12 | Welding fixture |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104439592B (en) * | 2014-11-05 | 2016-04-20 | 株洲硬质合金集团有限公司 | The technique of soldering stainless steel cylindrical part on hard alloy strip thin-wall part |
| CN104646783B (en) * | 2015-02-05 | 2016-08-24 | 项俊俊 | Diamond disk welder and welding diamond disk method |
| CN104985439B (en) * | 2015-06-30 | 2017-04-05 | 颜荣雄 | A kind of core wire polishing and beveling device |
| CN105252100A (en) * | 2015-11-10 | 2016-01-20 | 苏州新一磁业有限公司 | Welding method of ultrathin metal parts |
| CN108015375A (en) * | 2017-12-14 | 2018-05-11 | 无锡昌至盛机械制造有限公司 | A kind of tin soldering machine |
| CN108393816B (en) * | 2018-03-05 | 2019-08-16 | 项大清 | Mill bonding machine |
| CN109551144B (en) * | 2019-01-31 | 2023-08-18 | 台州市圣西亚金刚石设备有限公司 | Grinding disc welding positioning piece, grinding disc welding device and grinding disc welding method |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2852037B1 (en) * | 1998-02-06 | 1999-01-27 | 株式会社岸 | Architectural girders |
| CN2518638Y (en) * | 2001-11-18 | 2002-10-30 | 华中科技大学 | Laser welding diamond round saw blade welding clamp device |
| CN2552627Y (en) * | 2002-07-13 | 2003-05-28 | 华中科技大学 | Welding fixture for laser welding diamond engineering drilling bit |
| JP2006312822A (en) * | 2005-05-06 | 2006-11-16 | Sumitomo Denko Steel Wire Kk | Anchoring structure of tendon |
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| CN102284763A (en) | 2011-12-21 |
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