CN220372533U - Positioning welding mould for heat shield - Google Patents
Positioning welding mould for heat shield Download PDFInfo
- Publication number
- CN220372533U CN220372533U CN202321808400.6U CN202321808400U CN220372533U CN 220372533 U CN220372533 U CN 220372533U CN 202321808400 U CN202321808400 U CN 202321808400U CN 220372533 U CN220372533 U CN 220372533U
- Authority
- CN
- China
- Prior art keywords
- heat shield
- positioning
- mould body
- welding
- bottom plate
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- 238000003466 welding Methods 0.000 title claims abstract description 32
- 125000006850 spacer group Chemical group 0.000 claims abstract description 30
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 6
- 239000010959 steel Substances 0.000 claims abstract description 6
- 238000005303 weighing Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The utility model discloses a positioning welding mould for a heat shield, which comprises a mould body and a pair of positioning columns, wherein the mould body is made of channel steel, one side of the mould body is welded with the pair of positioning columns, and the center distance of the positioning columns is matched with the center distance of a spacer ring of the heat shield; the lower sides of two side edges of the mould body are provided with transverse through positioning grooves, the positioning columns are of a stepped shaft structure, small end shafts of the stepped shafts are respectively embedded into positioning holes of one side edge of the mould body and welded with one side edge of the mould body, and the outer circle of the large end shaft of each stepped shaft is matched with an inner hole of the spacer ring. The utility model has simple structure and convenient use, obviously improves the welding positioning precision, welding quality and welding work efficiency of the heat shield, and is more convenient for the heat shield to be arranged on the weighing sensor.
Description
Technical Field
The utility model relates to a welding tool for electronic scale parts, in particular to a welding tool for a heat shield, and belongs to the technical field of welding tools.
Background
The heat shield is arranged on the weighing sensor of the steel ladle lifting hook scale and used for blocking the heat of the molten steel and preventing the weighing sensor from losing efficacy due to high temperature. As shown in fig. 1 and 2, 2 spacers 20 are welded on the left and right sides of the heat shield base plate 10 at intervals, and the axes of the spacers are parallel to the heat shield base plate 10, and the spacers 20 are made of stainless steel.
At present, the welding process of the heat shield is as follows: firstly, respectively scribing datum lines for welding and positioning the spacing rings 20 on two sides of the heat shield bottom plate 10, then pressing and positioning the spacing rings 20 on the datum lines by one hand of a welder, finishing spot welding and positioning by the other hand-held welding gun, and finishing welding of the 4 spacing rings 20 one by one after the spot welding of the 4 spacing rings 20 is finished. The welding mode is complex in operation, time-consuming and labor-consuming, and the manufacturing quality of the heat shield is seriously affected because the relative position between the spacer ring 20 and the heat shield bottom plate 10 cannot be accurately positioned, so that the heat shield cannot be accurately installed on the weighing sensor.
Disclosure of Invention
The utility model aims to provide a positioning welding mould for a heat shield, which has a simple structure and is accurate in positioning.
The utility model is realized by the following technical scheme:
the heat shield positioning welding mould comprises a mould body and a pair of positioning columns, wherein the mould body is made of channel steel, one side of the mould body is welded with the pair of positioning columns, and the center distance of the positioning columns is matched with the center distance of a spacer ring of the heat shield; the lower sides of the two side edges of the mould body are provided with transverse through positioning grooves, the length L1 of each positioning groove is greater than the length L2 of the bottom plate of the heat shield, and the depth H of each positioning groove is smaller than the thickness H of the bottom plate of the heat shield; the positioning column is of a stepped shaft structure, and small end shafts of the stepped shafts are respectively embedded into positioning holes on one side edge of the clamping fixture body and welded with one side edge of the clamping fixture body; the outer circle of the large end shaft of the stepped shaft is matched with the inner hole of the space ring.
The object of the present utility model can be further achieved by the following technical means.
Further, the ratio of the distance F from the center of the positioning column to the bottom surface of the positioning groove to the sum of the radius R of the large end shaft of the stepped shaft and the wall thickness G of the spacer ring: f/r+g=1.005 to 1.010.
Further, the difference between the spacer thickness J and the length K of the large end shaft of the stepped shaft extending into the spacer: j-k=4 to 6mm.
Further, the difference between the length L1 of the locating groove of the heat shield bottom plate and the length L2 of the heat shield bottom plate: l1—l2=0.4 to 0.6mm, and the difference H-h=3 to 5mm between the heat shield bottom plate thickness H and the positioning groove depth H.
According to the utility model, through the structures of the positioning grooves and the pair of positioning columns, the relative positions of the bottom plate of the heat shield and the space rings are accurately positioned, the center distance of the space rings and the parallelism tolerance between the axis of the space rings and the two sides of the bottom plate of the heat shield can meet the design requirement, and the heat shield is more convenient to install on the weighing sensor. Simple structure, convenient to use has showing welding positioning accuracy, welding quality and the welding work efficiency that has improved the heat exchanger.
Advantages and features of the utility model will be illustrated and explained by the following non-limiting description of preferred embodiments, given by way of example only with reference to the accompanying drawings.
Drawings
FIG. 1 is a top view of a heat shield;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is a front view of the present utility model;
fig. 4 is a B-B cross-sectional view of fig. 3.
Detailed Description
The utility model is further described below with reference to the drawings and examples.
As shown in fig. 3 and 4, the embodiment includes a mold body 1 and a pair of positioning columns 2, the mold body 1 is made of a # 8 channel steel, the side 11 of the mold body is welded with the pair of positioning columns 2, and the center distance C1 of the positioning columns 2 is matched with the center distance C2 of the spacer ring of the heat shield in fig. 1, so as to meet the design requirement of the heat shield. The lower sides of two side edges 11 of the mould body 1 are provided with transverse through positioning grooves 12, the length L1 of each positioning groove is greater than the length L2 of the bottom plate of the heat shield, and the depth H of each positioning groove is less than the thickness H of the bottom plate of the heat shield. The difference between the positioning groove length L1 of the heat shield bottom plate and the heat shield bottom plate length L2: l1-l2=0.5 mm, and the difference H-h=4 mm between the locating groove depth H and the heat shield floor thickness H. This configuration allows the heat shield floor 10 to be precisely positioned within the positioning slot 12 and facilitates the removal and placement of the heat shield.
The positioning column 2 is of a stepped shaft structure, and small end shafts 21 of the stepped shafts are respectively embedded into positioning holes 111 of the side edges 11 on the right side of the clamping fixture body 1 and welded with the side edges 11 of the clamping fixture body 1. The ratio of the distance F from the center of the positioning post 2 to the bottom surface of the positioning groove 12 to the sum of the radius R of the large end shaft of the stepped shaft and the wall thickness G of the spacer ring: f/r+g=1.007, facilitating accurate positioning of the spacer 20 on the positioning column 2; the difference between the length J of the stepped shaft with its large end shaft 22 extending into the spacer 20 and the spacer thickness K: j-k=5 mm, which facilitates the spacer ring 20 to be sleeved onto the large end shaft 22 of the positioning column 2 before welding and enables the welded heat shield to be quickly removed after welding.
The process of welding the heat shield using the present utility model is as follows:
as shown in fig. 4, the heat shield bottom plate 10 is placed on the welding platform 30, then the spacer rings 20 are respectively sleeved on the large end shafts 22 of the positioning columns 2 on the right side edge 11 of the mold body 1, the spacer rings 20 are abutted against the right side edge 11 of the mold body 1, the positioning grooves 12 on the lower side of the mold body 1 are embedded on the heat shield bottom plate 10, and the positions of the heat shield bottom plate 10 are adjusted, so that the outer edges of the heat shield bottom plate 10 are level with the outer end faces of the spacer rings 20, and the spacer rings 20 can be respectively positioned on one side of the heat shield bottom plate 10 by spot welding.
Then, the semi-finished heat shield with 2 spacer rings 10 subjected to spot welding positioning is moved out of the utility model, then the other heat shield bottom plate 10 is embedded into the positioning groove 12 at the lower side of the mould body 1, the outer edge of the right side of the heat shield bottom plate 10 is flush with the side edge 11 of the right side of the mould body 1 welded with the positioning column 2, then the spacer rings 20 are respectively sleeved on the large end shafts 22 of the positioning columns 2 at the right side of the mould body 1, and after the semi-finished heat shield is rotated for 180 degrees, the outer edge of the heat shield bottom plate 10, which is not welded with the spacer rings 20, is abutted against the adjacent outer edge of the other heat shield bottom plate 10 at the lower side of the mould body 1, and then the spacer rings 20 are respectively subjected to spot welding positioning on the other side of the heat shield bottom plate 10. And finally, removing the semi-finished products of the heat shield with the spot welding and positioning of the 4 spacer rings 20, and finishing the final welding of the 4 spacer rings 20 one by one, thereby finishing the manufacture of the heat shield.
In addition to the above embodiments, other embodiments of the present utility model are possible, and all technical solutions formed by equivalent substitution or equivalent transformation are within the scope of the present utility model.
Claims (4)
1. The heat shield positioning welding mould is characterized by comprising a mould body and a pair of positioning columns, wherein the mould body is made of channel steel, one side edge of the mould body is welded with the pair of positioning columns, and the center distance of the positioning columns is matched with the center distance of a spacer ring of the heat shield; the lower sides of the two side edges of the mould body are provided with transverse through positioning grooves, the length L1 of each positioning groove is greater than the length L2 of the bottom plate of the heat shield, and the depth H of each positioning groove is smaller than the thickness H of the bottom plate of the heat shield; the positioning column is of a stepped shaft structure, and small end shafts of the stepped shafts are respectively embedded into positioning holes on one side edge of the clamping fixture body and welded with one side edge of the clamping fixture body; the outer circle of the large end shaft of the stepped shaft is matched with the inner hole of the space ring.
2. The heat shield positioning welding jig of claim 1, wherein the ratio of the distance F from the center of the positioning post to the bottom surface of the positioning groove to the sum of the radius R of the large end shaft of the stepped shaft and the wall thickness G of the spacer ring: f/r+g=1.005 to 1.010.
3. The heat shield weld fixture according to claim 1, wherein the difference between the spacer thickness J and the length K of the large end shaft of the stepped shaft extending into the spacer: j-k=4 to 6mm.
4. The heat shield tacking die of claim 1, wherein the difference between the detent length L1 of the heat shield base plate and the heat shield base plate length L2: l1—l2=0.4 to 0.6mm, and the difference H-h=3 to 5mm between the heat shield bottom plate thickness H and the positioning groove depth H.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321808400.6U CN220372533U (en) | 2023-07-11 | 2023-07-11 | Positioning welding mould for heat shield |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321808400.6U CN220372533U (en) | 2023-07-11 | 2023-07-11 | Positioning welding mould for heat shield |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220372533U true CN220372533U (en) | 2024-01-23 |
Family
ID=89560435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321808400.6U Active CN220372533U (en) | 2023-07-11 | 2023-07-11 | Positioning welding mould for heat shield |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220372533U (en) |
-
2023
- 2023-07-11 CN CN202321808400.6U patent/CN220372533U/en active Active
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