CN109940243B - Induction brazing workpiece clamp - Google Patents
Induction brazing workpiece clamp Download PDFInfo
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- CN109940243B CN109940243B CN201910395579.9A CN201910395579A CN109940243B CN 109940243 B CN109940243 B CN 109940243B CN 201910395579 A CN201910395579 A CN 201910395579A CN 109940243 B CN109940243 B CN 109940243B
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Abstract
The invention relates to the technical field of workpiece clamping, in particular to an induction brazing workpiece clamp. The induction brazing work piece clamp comprises a base, two upright frames extending upwards are arranged on the base, the two upright frames are arranged at intervals along the horizontal direction and are set to be in the left-right direction, the top ends of the two upright frames are respectively provided with a positioning structure used for positioning the corresponding work pieces in the front-back direction, a compression structure is further arranged, the compression structure is used for positioning the front-back direction and enabling a connecting end to extend to a set position between the two upright frames, the work pieces are compressed on the top ends of the upright frames, the two upright frames and the base jointly form a U-shaped groove with an upward opening, and the U-shaped groove is used for enabling an induction coil to be placed in and surround the connecting end of the. The positioning structure can carry out the ascending location of fore-and-aft direction to the work piece, and compact structure can compress tightly the work piece after the location, and positioning structure and compact structure cooperation can be installed the setting position department at the grudging post with the work piece location, improve the accurate degree of connection.
Description
Technical Field
The invention relates to the technical field of workpiece clamping, in particular to an induction brazing workpiece clamp.
Background
With the rapid development of the manufacturing industry in China, the welding production process is gradually popularized and applied, wherein the welding tool clamp is widely applied to equipment manufacturing production, the welding tool clamp can ensure the product manufacturing precision, improve the labor productivity, reduce the labor intensity of workers, reduce the manufacturing cost of enterprises, ensure the safe production of workshops and create higher economic benefits for the enterprises.
The induction brazing technology is one of welding production processes, when the induction brazing welding device is used, an induction coil is wound around the outer parts of two workpieces, and connecting ends and brazing filler metal in the two workpieces are melted by an alternating magnetic field so as to connect the two workpieces together. However, in the existing induction brazing operation process, there is usually no fixture to clamp and position the workpiece, taking two plates as an example, the two plates are usually placed on a platform that does not conduct magnetism in sequence, and then the induction coil is wound around the outside of the two workpieces to be directly welded; or a simple clamping mechanism is adopted, the clamping mechanism specifically comprises two clamps, and the two clamps clamp the corresponding workpieces respectively and then are welded.
In the prior art, no matter a clamp is not adopted for clamping or a simple clamping mechanism is adopted for clamping, workpieces cannot be positioned, so that the positioning accuracy of the two workpieces during connection is poor, and the gap and the parallel degree of the two interconnected workpieces are difficult to ensure. Moreover, in the process of induction brazing, two workpieces are easy to deform due to heating, and if no clamp is used for clamping and fixing the workpieces, the connection precision can be further reduced.
Disclosure of Invention
The invention aims to provide an induction brazing workpiece clamp to solve the technical problems that in the prior art, workpieces are poor in positioning accuracy and cannot be accurately connected.
In order to achieve the purpose, the technical scheme of the induction brazing workpiece clamp is as follows: the utility model provides an induction brazing work piece holder, includes the base, is equipped with two grudging posts that upwards extend on the base, and the coexistence frame is arranged and is set for this horizontal direction for left right direction along the horizontal direction interval, and the top of each grudging post is equipped with respectively and is used for carrying out the location structure of front and back location to the work piece that corresponds separately, still is equipped with compact structure, compact structure be used for with front and back location and link extend set position between the two grudging posts the work piece compresses tightly in the grudging post top, and coexistence frame and base form the U-shaped groove that the opening faces upwards jointly, and the U-shaped groove is used for supplying induction coil to put into and encircle the link outside in two.
The invention has the beneficial effects that: in the induction brazing workpiece clamp provided by the invention, the base is used as the basis of the whole clamp, so that the stability of the clamp and a workpiece in the brazing process can be ensured. The two vertical frames are arranged at intervals and form a U-shaped structure with the base, and the connecting ends of the two workpieces are located between the two vertical frames during induction brazing, so that the structure is more stable and compact. The positioning structure can position the workpiece in the front-back direction, the compressing structure can compress the positioned workpiece, and the positioning structure is matched with the compressing structure to fix the workpiece at the set position of the stand in a positioning manner, so that the initial positioning precision of the workpiece is improved, and the connection precision is improved. In addition, in the process of induction brazing, the top end of the stand is matched with the compression structure, so that the workpiece can be effectively fixed, and the thermal deformation of the workpiece is reduced.
Furthermore, a through groove which is through from left to right and has an upward notch is formed in the top of the stand, the bottom of the through groove is used for being matched with the pressing structure to press the workpiece, one side groove wall of the through groove forms the positioning structure, and a positioning surface which is used for being matched with the workpiece along the front-rear direction to position the workpiece in the front-rear direction is formed in the side groove wall. The through groove is arranged to support and position the workpiece, so that the structure is simpler and the processing is easier.
Further, a clamping surface for clamping the workpiece in a front-back manner is arranged on the other side groove wall of the through groove and is matched with the positioning surface. When the width of the workpiece is matched with that of the through groove, the clamping surface and the positioning surface can be matched to clamp the workpiece, and the stability of the workpiece is further ensured.
Furthermore, the pressing structure comprises a mounting bracket fixedly arranged above the through groove and a thread pressing piece which is screwed on the mounting bracket through threads to press the workpiece. The workpiece is compressed by the mounting bracket and the thread compressing piece, so that the structure is simpler and more convenient.
Furthermore, the mounting bracket is a U-shaped bracket buckled on the through groove, the opening of the U-shaped bracket faces downwards, the U-shaped bracket comprises two support arms arranged at intervals in the front and at the back and a mounting seat arranged at the upper ends of the two support arms, and the mounting seat is provided with the thread pressing piece. The mounting bracket is a buckled U-shaped bracket, so that the requirement of penetrating and mounting a workpiece with a larger size in height can be met, and the application range is enlarged.
Furthermore, the bottoms of the two through grooves are located at the same height, the distance between the two support arms in at least one of the two U-shaped supports is smaller than the width of the through groove, so that a step is formed at the top end of the groove wall of the through groove, the step is located above the bottom of the through groove in the other vertical frame, so that the corresponding workpiece is lifted upwards and lapped on the other workpiece, and the inner sides of the support arms are provided with positioning side faces used for being in stop fit with the workpiece in the front-back direction to position the workpiece in the front-back direction. At least one vertical frame is provided with a step, and the step can upwards lift a corresponding workpiece so that the corresponding workpiece can be lapped on another workpiece to complete lapping. When the connecting device is used, according to the connecting requirement, when two workpieces are required to be lapped, one workpiece can be placed at the bottom of the through groove, and the other workpiece can be placed on the step; when two workpieces are needed to be butted, the workpieces can be placed on the bottom of the through groove or the step to be butted, and the application range is wider.
Further, the mounting bracket is fixed on the top of the stand in a split manner. The mounting support is fixed on the vertical frame in a split mode, and due to the fact that the mounting support is heated by a large amount when the mounting support is used, the mounting support and the vertical frame are arranged in a split mode, materials with small deformation after being heated can be selected to manufacture the mounting support when materials are selected initially, and the situation that a workpiece is pushed by the mounting support in a deformed mode to deviate is avoided.
Further, the base and the two standing frames are integrally formed. The two are integrally formed, so that the processing is convenient, and the integral strength can be ensured.
Drawings
FIG. 1 is a perspective view of an embodiment of an induction brazing work piece holder of the present invention;
FIG. 2 is a front view of an embodiment of an induction brazing work piece holder of the present invention;
FIG. 3 is a right side view of an embodiment of an induction brazing work piece holder of the present invention;
FIG. 4 is a top view of an embodiment of an induction brazing work piece holder of the present invention;
description of reference numerals: 100-a first base; 11-a base; 12-a first stand; 13-a second stand; 14-a U-shaped slot; 15-a through groove; 16-step; 200-a first U-shaped bracket; 21-a support arm; 22-a mounting seat; 300-a second U-shaped bracket; 400-hold down bolt.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings.
In the embodiment of the induction brazing work fixture of the invention, as shown in fig. 1 to 4, the induction brazing work fixture can position and clamp two workpieces to be connected and allow an induction coil to extend into the two workpieces, and the connection in the embodiment comprises butt joint of the two workpieces end to end and lapping of the two workpieces.
As shown in fig. 1, the induction brazing work fixture includes a first base 100, the first base 100 includes a bottommost base 11, and a first stand 12 and a second stand 13 are integrally formed above the base 11, wherein the first stand 12 and the second stand 13 both extend upward, and the first stand 12 and the second stand 13 are arranged at intervals in a horizontal direction. In this embodiment, the horizontal spacing direction of the first stand 12 and the second stand 13 is defined as the left-right direction, the first stand 12 is on the right, and the second stand 13 is on the left.
As shown in fig. 1 and 2, the first stand 12, the second stand 13, and the base 11 together form a U-shaped groove 14 having an upward opening, and the U-shaped groove 14 opens upward and penetrates forward and backward. In this embodiment, in order to meet the requirement of the insertion of the induction coil and the movement during the induction brazing, the width of the U-shaped groove 14 in the left-right direction needs to be greater than the length required by the axial direction of the induction coil (the length includes the axial length of the induction coil itself, the axial moving distance of the induction coil during use, and the distance that must be reserved to avoid direct contact with the first base 100), and the front-back direction of the U-shaped groove 14 is open, so that the induction coil can be inserted in the front-back direction.
In this embodiment, the first stand 12 and the second stand 13 have the same structure and the same height, and the first stand 12 is taken as an example for explanation. As shown in fig. 3, a through groove 15 penetrating in the left-right direction is opened at the tip of the first stand 12. The second vertical frame 13 has through grooves at its top end, and the through grooves have the same structure and size, and the through groove 15 of the first vertical frame 12 is taken as an example. A first U-shaped bracket 200 is fastened to the upper side of the through-groove 15 of the first stand 12, and a second U-shaped bracket 300 is fastened to the upper side of the through-groove of the second stand 13. The two U-shaped brackets have the same structure, taking the first U-shaped bracket 200 as an example, the first U-shaped bracket 200 includes two support arms 21 arranged at intervals along the front-back direction, the two support arms 21 extend vertically, and the mounting seats 22 are fixed at the top ends of the two support arms 21, in this embodiment, the two support arms 21 and the mounting seats 22 are both plate-shaped structures, and the first U-shaped bracket 200 is integrally formed. A compression bolt 400 is threadedly mounted in the mount 22. In this embodiment, the vertical distance between the bottom of the U-shaped slot 14 and the bottom of the through slot 15 can ensure that the induction coil is placed.
As can be seen from fig. 1 and 3, in the present embodiment, the width between the two arms 21 is larger than the width of the through slot 15, and the outer side surfaces of the two arms 21 are flush with the outer side surface of the first stand 12, so that a step 16 is formed above the through slot 15, and the step 16 can support the workpiece upward. Of course, in other embodiments, the width between the two arms may be equal to the slot width of the through slot. In this embodiment, the vertical distance between the supporting surface of the step 16 and the bottom of the through groove 15 is not less than the thickness of the workpiece placed on the second vertical frame 13 during use, so that the workpiece on the first vertical frame 12 can be ensured to be placed on the second vertical frame 13.
When the butt joint device is used, for example, end-to-end butt joint of two plate-shaped workpieces is performed, one of the workpieces extends into the through groove 15 of the first vertical frame 12 from right to left, the workpiece is supported and arranged at the bottom of the through groove 15, one side of the workpiece in the front-back direction abuts against one groove wall of the through groove 15, the other workpiece extends into the through groove of the second vertical frame 13 from left to right, and one side of the workpiece abuts against one groove wall of the through groove. The two workpieces are relatively moved to a set distance, the workpieces are pressed at the bottom of the through groove 15 by a pressing bolt 400, and brazing filler metal is arranged between the two workpieces. Before the two workpieces move in place relatively or before the two workpieces are not penetrated, the induction coil is placed in the U-shaped groove 14 (if the induction coil is of a closed annular structure, the induction coil is placed in the U-shaped groove before the two workpieces are not penetrated, if the induction coil is of a structure with an opening at one side, the induction coil is sleeved outside the two workpieces in the front-back direction after the two workpieces move in place relatively), and the two workpieces are electrified for induction brazing after moving in place relatively.
Taking the example of overlapping two plate-shaped workpieces, one of the workpieces is inserted into the first vertical frame 12 from right to left, and the workpiece is supported and placed on the step 16, so that one side of the workpiece in the front-back direction abuts against the inner side surface of the support arm 21. Another workpiece is inserted into the through groove of the second vertical frame 13 from left to right, and the workpiece is supported and placed at the bottom of the through groove, so that one side of the workpiece in the front-back direction abuts against the wall of the through groove. The two workpieces are relatively moved to a set distance, the workpiece on the first vertical frame 12 is lapped on the workpiece on the second vertical frame 13, and then induction brazing is carried out.
In this embodiment, the first standing frame 12 and the second standing frame 13 are both standing frames, the standing frames in this embodiment are solid standing frames, and in other embodiments, the standing frames may be formed by using a frame-type structure. In the embodiment, the base and the two vertical frames are integrally formed, and in other embodiments, the base and the two vertical frames can be processed in a split welding mode.
In this embodiment, first U-shaped support and second U-shaped support are the installing support of spiral-lock on penetrating the groove, are welded fastening's relation between installing support and the grudging post, and in other embodiments, can integrated into one piece between installing support and the grudging post, the perforation that link up about seting up after the integrated into one piece, fenestrate bottom pore wall is used for placing the work piece.
In this embodiment, the installing support is the U-shaped support, can satisfy the work piece of bigger height dimension and penetrate. One of the support arms of the U-shaped support is provided with a positioning side surface which can abut against a workpiece to position the workpiece forwards and backwards. In this embodiment, the width between the two support arms is large, when the width of the workpiece is large, the two workpieces can be supported and placed on the steps corresponding to the two support arms, and when the width of the workpiece is small, the two workpieces can be supported and placed on the bottoms of the through grooves corresponding to the two support arms. Of course, in other embodiments, the groove base heights of the two through grooves may be designed to be unequal in order to overlap.
In other embodiments, only one of the stands may have a step.
In other embodiments, the mounting bracket may be a plate-shaped structure, and may be directly fastened to the mounting bracket.
In this embodiment, housing bolt is the screw thread and compresses tightly the piece, and in other embodiments, the screw thread compresses tightly the piece and can be screw or for screw rod etc. and the screw thread compresses tightly the piece and has constituted compact structure jointly with the installing support. In other embodiments, the compression structure may be as follows: the pressing structure comprises a screw rod which is arranged on the vertical frame and extends upwards, a pressing plate is movably sleeved on the screw rod, a pressing nut is sleeved on the screw rod in a threaded manner and is located above the pressing plate, when the pressing structure is used, a workpiece is pressed downwards by the pressing plate, and the pressing nut presses the pressing plate.
In this embodiment, one of them side cell wall of through groove has the locating surface, is used for supplying the work piece to lean on, carries out front and back location to the work piece, when the width of the groove of through groove just suits with the width of work piece, has the compacting face on the cell wall of the other side, and the work piece is pressed tightly with the locating surface cooperation. The groove wall with the positioning surface in the through groove forms a positioning structure, in other embodiments, a vertical plate may be additionally disposed on the top of the stand to form the positioning structure, and the shape of the positioning surface is changed according to the shape of the workpiece, for example, if the side surface of the workpiece is an arc, the positioning surface is correspondingly an arc surface.
In this embodiment, the material of installing support is different from the material of grudging post, because the installing support receives the heat when using greatly, selects the material that the coefficient of thermal expansion is less after the heat to make the installing support, reduces the deflection of installing support as far as possible, avoids causing work piece beat or removal deformation.
Claims (5)
1. The utility model provides an induction brazing work piece anchor clamps which characterized in that: the induction brazing device comprises a base, wherein two upright frames extending upwards are arranged on the base, the two upright frames are arranged at intervals along the horizontal direction and set the horizontal direction as the left direction and the right direction, connecting ends of two workpieces are positioned between the two upright frames during induction brazing, the top end of each upright frame is respectively provided with a through groove which is communicated with the left direction and the right direction and provided with an upward notch, one groove wall of each through groove forms a positioning structure used for positioning the corresponding workpiece forwards and backwards, the groove wall of each side is provided with a positioning surface used for being matched with the positioning stop of the workpiece along the front-back direction to position the workpiece forwards and backwards, the top end of each upright frame is also provided with a compression structure, the groove bottom of each through groove is used for being matched with the compression structure to compress the workpiece, the compression structure is used for compressing the workpiece which is positioned forwards and backwards and the connecting ends extend to a set position between the two, the induction brazing device is characterized by further comprising a threaded pressing piece which is screwed on the mounting support through threads to press a workpiece, the mounting support is a U-shaped support which is buckled on the through groove, the opening of the U-shaped support faces downwards, the U-shaped support comprises two support arms which are arranged at intervals in the front and at the back and a mounting seat which is arranged at the upper ends of the two support arms, the threaded pressing piece is arranged on the mounting seat, the two vertical frames and the base jointly form a U-shaped groove with the upward opening, and the U-shaped groove is used for enabling an induction coil to be placed in and surround the outer portion of.
2. The induction brazing work piece holder of claim 1, wherein: and a clamping surface used for clamping the workpiece in a front-back manner is arranged on the other side groove wall of the through groove and matched with the positioning surface.
3. The induction brazing work fixture of claim 1 or 2, wherein: the bottoms of the two through grooves are located at the same height, the distance between the two support arms is smaller than the groove width of the through groove in at least one of the two U-shaped supports, so that a step is formed at the top end of the groove wall of the through groove, the step is located above the bottom of the through groove in the other vertical frame, so that the corresponding workpiece is lifted upwards and lapped on the other workpiece, and the inner sides of the support arms are provided with positioning side faces used for being in stop fit with the workpiece in the front-back direction to position the workpiece in the front-back direction.
4. The induction brazing work fixture of claim 1 or 2, wherein: the mounting bracket is fixed on the top of the stand in a split manner.
5. The induction brazing work fixture of claim 1 or 2, wherein: the base and the two vertical frames are integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910395579.9A CN109940243B (en) | 2019-05-13 | 2019-05-13 | Induction brazing workpiece clamp |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910395579.9A CN109940243B (en) | 2019-05-13 | 2019-05-13 | Induction brazing workpiece clamp |
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| CN109940243A CN109940243A (en) | 2019-06-28 |
| CN109940243B true CN109940243B (en) | 2021-04-09 |
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| CN201910395579.9A Active CN109940243B (en) | 2019-05-13 | 2019-05-13 | Induction brazing workpiece clamp |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205551879U (en) * | 2016-04-11 | 2016-09-07 | 南京德丰机械有限公司 | Steel sheet welding jig device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6209859B1 (en) * | 1999-10-10 | 2001-04-03 | Henry Chung | Universal reflow fixture |
| CN201483124U (en) * | 2009-06-01 | 2010-05-26 | 安徽华东光电技术研究所 | Braze welding clamp for high-energy ignition discharge tube |
| CN202087910U (en) * | 2010-12-02 | 2011-12-28 | 贵州黎阳航空动力有限公司 | Aircraft engine brazing test piece weld jig |
| CN203863186U (en) * | 2014-06-10 | 2014-10-08 | 内蒙古工业大学 | Novel clamp for brazing |
| CN205496741U (en) * | 2016-04-01 | 2016-08-24 | 陕西汉和机电科技股份有限公司 | Toper tip of ceramic pipe and titanium alloy pole aligns and limit clamp that brazes of centering |
| CN108188521B (en) * | 2018-01-25 | 2020-10-02 | 山东建筑大学 | High-frequency induction heating brazing method for molybdenum-rhenium alloy foil |
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2019
- 2019-05-13 CN CN201910395579.9A patent/CN109940243B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205551879U (en) * | 2016-04-11 | 2016-09-07 | 南京德丰机械有限公司 | Steel sheet welding jig device |
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