CN215280596U - Box welding jig - Google Patents
Box welding jig Download PDFInfo
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- CN215280596U CN215280596U CN202120475288.3U CN202120475288U CN215280596U CN 215280596 U CN215280596 U CN 215280596U CN 202120475288 U CN202120475288 U CN 202120475288U CN 215280596 U CN215280596 U CN 215280596U
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Abstract
The utility model relates to a box welding jig, include: fastener (5), left/right location strip (6), left/right spacing strip (7), but spiral adjusting bracing piece (8), equipment screw (9), base (10). The materials of the new clamp are all 1Cr18Ni9Ti austenitic stainless steel. Through the utility model provides a pair of box welding jig, with original box welding output volume by 8h welding 1 stove 1 platform per day improve for 8h welding 1 stove 4 per day, output volume increases to original 4 times, improves production efficiency, guarantees product quality and the progress of delivering.
Description
Technical Field
The utility model belongs to the vacuum brazing welding field, concretely relates to box welding jig.
Background
The existing box welding furnace charging process (as shown in fig. 1 and 2) comprises the following steps: cushion 1, parallels 2, box 3, backup pad 4. The length of the sizing block 2 is 300mm, the width is 80mm, the height is 70mm, the length of the support plate 4 is 650mm, and the length of the furnace floor is 1000 mm. The existing welding and clamping process comprises the following steps: the structure is complex, and the clamping and dismounting process consumes long time; when placing horizontally in the brazing furnace, in order to guarantee that box 3 is steady, original backup pad 4 and cushion 2 area occupied are great, and parallels 2 self weight and heat absorption are great. Finally, the furnace charging output in the welding process is limited, and only 1 furnace and 1 box can be welded in 8 hours every day. For 16 cases per month, the brazing process has a time period of about 20-22 days, and the output is low, which seriously affects the delivery schedule of the product.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a box welding jig, improving original box welding output from 8h welding 1 stove per day to 8h welding 1 stove 4 stoves per day, output increases to original 4 times, improves production efficiency, guarantees product quality and the delivery progress.
The utility model provides a technical scheme invention a box welding jig, include: fastener 5, left/right location strip 6, left/right spacing strip 7, but screw adjustment bracing piece 8, screw 9, base 10.
The fastening piece 5 adopts a screw M5X 24, and is characterized in that the fastening piece is arranged on the left side and the right side of the left/right positioning strip 6 respectively by 4 pieces, and the number of the fastening pieces is 8.
The left/right positioning strips 6 are 197mm long, 7mm wide and 12mm high; the left/right positioning strip 6 is provided with 4 groups of M5-7H screw holes for mounting the fasteners 5; the left/right positioning strip 6 is provided with 2 groups of unthreaded holes phi 3.2mm (through), and the left/right positioning strip 6 is fastened on the two outermost sides of the base 10 by using screws 9, so that the two outer side surfaces are parallel and level after assembly.
The left/right limiting strip 7 is 157mm long, 52mm wide and 12mm high; the left/right limiting strip 7 is provided with 2 groups of smooth holes phi 3.2mm (through), the left/right limiting strip 7 is fastened on the base 10 by using screws 9, and the assembly size between the left/right positioning strip 6 and the left/right limiting strip 7 is ensured to be 13.5 +/-0.25 mm.
The length of the screw-adjustable supporting rod 8 is 78mm, the screw-adjustable supporting rod 8 is provided with a cylinder with the diameter size phi of 12mm, the bottom end face of the cylinder is provided with M8-7H threads with the length of 12mm, a cuboid is arranged on the screw-adjustable supporting rod 8 at a position 8mm away from the bottom end face of the threads, the cuboid is 14mm long, 10mm wide and 6mm high, and the screw-adjustable supporting rod is used for controlling the screwing torque of the screw-adjustable supporting rod 8 arranged on the base 10 by a torque wrench.
The screw 9 adopts 8 pieces of M3 multiplied by 16 (code number GB/T823-1988) and is used for installing and fastening the left/right positioning strip 6 and the left/right limiting strip 7 on the base 10 to ensure the installation reliability.
The base 10 is a main structure of the clamp, wherein the length of the main structure is 347mm, the width of the main structure is 197mm, and the height of the main structure is 12 mm. The top view of the base 10 is provided with three rectangular grooves with the sizes of 62mm multiplied by 174mm (through), 156mm multiplied by 174mm (through) and 62mm multiplied by 174mm (through), which mainly reduce the weight of the clamp and increase the conduction of radiant heat. The base 10 is provided with 8M 3-7H screw holes with the depth of 6mm for mounting screws 9, and the central line position is provided with 2 unthreaded holes with the diameter phi 8 (through) for embedding the heads of the self-made process aluminum screws of the box body 3. The front view of the base 10 is provided with three rectangular grooves with the sizes of 12mm multiplied by 6mm, 40mm multiplied by 6mm and 12mm multiplied by 6mm respectively; the fixture is used for installing other original fixtures, ensures that the bottom surface of the fixture is not higher after the fixture is installed, and ensures that the fixture is finally placed on a furnace bottom plate to be level and stable.
The new clamp is made of 1Cr18Ni9Ti austenitic stainless steel. It is characterized in that: 1. the rigidity and the oxidation resistance of the material are far higher than those of an aluminum alloy material to be welded (the oxidation resistance can reach 700 ℃); the tissue is stable, and the tissue cannot be embrittled after long-term repeated use; the furnace brazing process has the advantages that the furnace brazing process does not deform and emit harmful gas and impurities, alloy reaction and adhesion are not easy to occur between the furnace brazing process and a welded material, seizure phenomenon does not occur between clamps at the threaded connection part at the brazing temperature, and the furnace brazing process is low in price, easy to process and low in cost. 2. The rigidity and the oxidation resistance of the clamp cannot change at the brazing temperature, the highest temperature of the box body during brazing is 588 ℃, the expansion and the contraction of a weldment along with the temperature during brazing are always limited by the clamp, and the weldment and the matching size of the weldment can be guaranteed by the assembly of the clamp, so that the deformation of the weldment after welding is small, and the quality of a welding joint is stable.
The tail part of the screw of the fastener 5 is not higher than the inner side end surface of the left/right positioning strip 6. The screw-adjustable support rod 8 is screwed into the base 10 through the M8 screw thread, so that the screw connection is ensured to be screwed tightly without shaking.
And putting the box body 3 into a new welding fixture, and ensuring that the upper side surface and the lower side surface of the box body are flush with the upper side surface and the lower side surface of the newly welded base 10.
The fastener 5 is tightly attached to the side face of the box body 3, and the clamping torque is guaranteed to be 0.6-0.8 N.m.
The upper end surface of the support rod 8 capable of being adjusted in a spiral way is tightly attached to the box body 3, and the screwing moment is ensured to be 1.5-2.5 N.m.
The new jig and the box 3 are horizontally placed into a welding furnace after being assembled.
The clamp has light weight, high strength, simple structure and convenient installation and disassembly; the heat conduction of the brazing area is ensured, and the interference to heat transfer in the process of heating and cooling the weldment is small. Compared with the original welding clamp and the original auxiliary support, the clamp has the advantages that the size is greatly reduced, and the furnace charging amount is increased; 1 furnace is welded for 8h every day, and 4 furnaces are welded for 4 hours every day, so that the production efficiency is greatly improved. The processing cost of the box body brazing link is greatly reduced. The welding cost of each furnace is about 12000 yuan RMB, 192 machines are required to be delivered every year according to 16 machines delivered every month; the processing cost of the original welding clamp and the original auxiliary support is about 192 (furnace) multiplied by 12000-230.4 ten thousand yuan, and 192 working days are needed for completion; the processing cost of the new clamp is about 192/4 (furnace) multiplied by 12000 which is 57.6 ten thousand yuan, and the new clamp can be finished by only 48 working days, thereby saving 172.8 ten thousand yuan each year and 144 working days.
Drawings
FIG. 1 is a left side view of the structure of the original welding charging process;
FIG. 2 is a front view of the structure of the original welding charging process
FIG. 3 is a left side view of the new welding fixture configuration;
FIG. 4 is a top view of the new welding fixture configuration;
FIG. 5 is a structural diagram of a new jig welding charging process;
the welding device comprises a base, a cushion block 2, a welding box 3, a supporting plate 4, a fastening piece 5, a left/right positioning strip 6, a left/right limiting strip 7, a spiral adjusting supporting rod 8, a screw 9 and a base 10.
Detailed Description
The utility model provides a pair of box welding jig (as shown in figure 3 and figure 4), include: fastener 5, left/right location strip 6, left/right spacing strip 7, but screw adjustment bracing piece 8, screw 9, base 10.
The fastener 5 adopts a screw M5X 24 (code number GB/T823-1988), and is characterized in that the fastener is arranged on the left side and the right side of the left/right positioning strip 6 respectively by 4 pieces, and the number of the fasteners is 8.
The left/right positioning strips are 6mm long, 197mm wide, 7mm wide and 12mm high; the left/right positioning strip 6 is provided with 4 groups of M5-7H screw holes for mounting the fasteners 5; the left/right positioning strip 6 is provided with 2 groups of unthreaded holes phi 3.2mm (through), and the left/right positioning strip 6 is fastened on the two outermost sides of the base 10 by using screws 9, so that the two outer side surfaces are parallel and level after assembly.
The left/right limiting strip 7 is 157mm long, 52mm wide and 12mm high; the left/right limiting strip 7 is provided with 2 groups of unthreaded holes phi 3.2mm (through), the left/right limiting strip 7 is fastened on the base 10 by using screws 9, and the assembly size between the left/right positioning strip 6 and the left/right limiting strip 7 is ensured to be 13.5 +/-0.25 mm.
The length of the screw-adjustable supporting rod 8 is 78mm, a cylinder with the diameter size phi of 12mm is arranged on the screw-adjustable supporting rod 8, the bottom end face of the cylinder is provided with M8-7H threads with the length of 12mm, a cuboid is arranged on the screw-adjustable supporting rod 8 at a position 8mm away from the bottom end face of the threads, the length of the cuboid is 14mm, the width of the cuboid is 10mm, and the height of the cuboid is 6mm, so that a torque wrench is used for controlling the size of the screwing torque of the screw-adjustable supporting rod 8 arranged on the base 10.
The screws 9 adopt M3 multiplied by 16 (code number GB/T823-1988), and are totally 8, and are used for installing and fastening the left/right positioning strips 6 and the left/right limiting strips 7 on the base 10 to ensure the installation reliability.
The base 10 is a main structure of the clamp, wherein the length of the main structure is 347mm, the width of the main structure is 197mm, and the height of the main structure is 12 mm. The top view of the base 10 is provided with three rectangular grooves with the sizes of 62mm multiplied by 174mm (through), 156mm multiplied by 174mm (through) and 62mm multiplied by 174mm (through), which mainly reduce the weight of the clamp and increase the conduction of radiant heat. The base 10 is provided with 8M 3-7H screw holes with the depth of 6mm for mounting screws 9, and the central line position is provided with 2 unthreaded holes with the diameter phi 8 (through) for embedding the heads of the self-made process aluminum screws of the box body 3. The front view of the base 10 is provided with three rectangular grooves with the sizes of 12mm multiplied by 6mm, 40mm multiplied by 6mm and 12mm multiplied by 6mm respectively; the fixture is used for installing other original fixtures, ensures that the bottom surface of the fixture is not higher after the fixture is installed, and ensures that the fixture is finally placed on a furnace bottom plate to be level and stable.
The screw tail part of the fastener 5 is not higher than the inner side end surface of the left/right positioning strip 6. The screw-adjustable support rod 8 is screwed into the base 10 through the M8 screw thread, so that the screw connection is ensured to be screwed tightly without shaking.
And putting the box body 3 into a new welding fixture, and ensuring that the upper side surface and the lower side surface of the box body are flush with the upper side surface and the lower side surface of the newly welded base 10.
The fastener 5 is tightly attached to the side face of the box body 3, and the clamping torque is guaranteed to be 0.6-0.8 N.m.
The upper end surface of the support rod 8 capable of being adjusted in a spiral way is tightly attached to the box body 3, and the screwing moment is ensured to be 1.5-2.5 N.m.
The new jig and the box 3 are horizontally placed into a welding furnace after being assembled (as shown in fig. 5).
The clamp is made of 1Cr18Ni9Ti austenitic stainless steel. The rigidity and the oxidation resistance of the material are far higher than those of an aluminum alloy material to be welded (the oxidation resistance can reach 700 ℃); the tissue is stable, and the tissue cannot be embrittled after long-term repeated use; the furnace brazing process has the advantages that the furnace brazing process does not deform and emit harmful gas and impurities, alloy reaction and adhesion are not easy to occur between the furnace brazing process and a welded material, seizure phenomenon does not occur between clamps at the threaded connection part at the brazing temperature, and the furnace brazing process is low in price, easy to process and low in cost. The rigidity and the oxidation resistance of the clamp cannot change at the brazing temperature, the highest temperature of the box body during brazing is 588 ℃, the expansion and the contraction of a weldment along with the temperature during brazing are always limited by the clamp, and the weldment and the matching size of the weldment can be guaranteed by the assembly of the clamp, so that the deformation of the weldment after welding is small, and the quality of a welding joint is stable.
The clamp has light weight, high strength, simple structure and convenient installation and disassembly; the heat conduction of the brazing area is ensured, and the interference to heat transfer in the process of heating and cooling the weldment is small. Compared with the original welding clamp and the original auxiliary support, the clamp has the advantages that the size is greatly reduced, and the furnace charging amount is increased; 1 furnace is welded for 8h every day, and 4 furnaces are welded for 4 hours every day, so that the production efficiency is greatly improved. The processing cost of the box body brazing link is greatly reduced. The welding cost of each furnace is about 12000 yuan RMB, 192 machines are required to be delivered every year according to 16 machines delivered every month; the processing cost of the original welding clamp and the original auxiliary support is about 192 (furnace) multiplied by 12000-230.4 ten thousand yuan, and 192 working days are needed for completion; the processing cost of the new clamp is about 192/4 (furnace) multiplied by 12000 which is 57.6 ten thousand yuan, and the new clamp can be finished by only 48 working days, thereby saving 172.8 ten thousand yuan each year and 144 working days.
Claims (6)
1. The utility model provides a box welding jig which characterized in that, anchor clamps include: the device comprises a fastener (5), a left/right positioning strip (6), a left/right limiting strip (7), a spirally-adjustable supporting rod (8), a screw (9) and a base (10);
the left/right positioning strips (6) are fastened on the outermost two sides of the base (10) through screws (9), the left/right limiting strips (7) are fastened on the innermost two sides of the base (10) through the screws (9), the fasteners (5) are used for fixing the box body to be welded between the positioning strips (6) and the limiting strips (7), and the support rod (8) capable of being adjusted in a spiral mode is connected to the upper surface of the base and used for supporting the box body to be welded.
2. A box welding jig according to claim 1, characterized in that a plurality of square window grooves are formed on the base, and the screw-adjustable support rod (8) is disposed on the reinforcing rib between the square window grooves.
3. A box welding fixture according to claim 2, characterized in that the position of the reinforcing rib where the screw adjustable support rod (8) is connected is provided with a threaded hole for threaded connection with the screw adjustable support rod (8).
4. A box welding jig according to claim 3 characterized in that but be provided with spacing boss on spiral regulation bracing piece (8).
5. A box welding fixture according to claim 1, wherein the base upper surface is further provided with a first groove for avoiding a projection on a box to be welded.
6. A box welding jig according to claim 1, characterized in that a second recess is provided in the lower surface of the base, the second recess being adapted to receive a fastener for connecting the box to be welded to the base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120475288.3U CN215280596U (en) | 2021-03-04 | 2021-03-04 | Box welding jig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120475288.3U CN215280596U (en) | 2021-03-04 | 2021-03-04 | Box welding jig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215280596U true CN215280596U (en) | 2021-12-24 |
Family
ID=79533053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120475288.3U Active CN215280596U (en) | 2021-03-04 | 2021-03-04 | Box welding jig |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215280596U (en) |
-
2021
- 2021-03-04 CN CN202120475288.3U patent/CN215280596U/en active Active
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