CN210997286U - Sofa backrest bottom frame welding jig - Google Patents
Sofa backrest bottom frame welding jig Download PDFInfo
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- CN210997286U CN210997286U CN201922141171.7U CN201922141171U CN210997286U CN 210997286 U CN210997286 U CN 210997286U CN 201922141171 U CN201922141171 U CN 201922141171U CN 210997286 U CN210997286 U CN 210997286U
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Abstract
The utility model relates to a sofa backrest underframe welding jig, the sofa backrest underframe comprises a first bottom rod, a second bottom rod, a third bottom rod, a fourth bottom rod and a fifth bottom rod, the first bottom rod, the second bottom rod, the third bottom rod and the fifth bottom rod form a rectangular frame structure, and the fourth bottom rod is connected with the first bottom rod and the second bottom rod; the backrest bottom frame welding clamp comprises a first bottom frame clamp, a second bottom frame clamp and a third bottom frame clamp; can realize pressing from both sides tight fixedly respectively to each sill bar of constitution sofa back underframe, avoid artifical manual clamp tightly, promote clamping efficiency and quality to each sill bar of sofa back underframe before the welding, make things convenient for subsequent welding robot to unify the welding between the sill bar on the anchor clamps, promote back underframe welding quality and efficiency.
Description
Technical Field
The utility model relates to a sofa back underframe welding jig.
Background
The existing sofa frame is changed from traditional wood to the existing iron or stainless steel, the sofa frame comprises a base frame, two armrest frames and a backrest frame, in the process of manufacturing the sofa frame, steel rods are firstly used for welding to form the single base frame, the armrest frames and the backrest frame, and then the frames are assembled together to form the whole sofa frame.
The backrest frame is shown in fig. 1 and comprises a backrest bottom frame and a backrest bevel frame; at present, the backrest bottom frame is mainly formed by manually holding the backrest bottom frame by one steel rod and welding the steel rod into a rectangular backrest bottom frame, the welding efficiency is very low, the quality of the backrest bottom frame welded by a handheld mode is not uniform, and batch operation cannot be realized.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: overcome prior art's not enough, provide a sofa back underframe welding jig, need manual work to process just can realize welded problem when solving sofa back underframe production in the past.
The utility model provides a technical scheme that its technical problem adopted is:
a sofa backrest bottom frame welding clamp comprises a first bottom rod, a second bottom rod, a third bottom rod, a fourth bottom rod and a fifth bottom rod, wherein the first bottom rod, the second bottom rod, the third bottom rod and the fifth bottom rod form a rectangular frame structure, and the fourth bottom rod is connected with the first bottom rod and the second bottom rod;
the backrest bottom frame welding clamp comprises a first bottom frame clamp, a second bottom frame clamp and a third bottom frame clamp;
the first bottom frame clamp is suitable for limiting the displacement of the first bottom rod, the second bottom rod and the third bottom rod;
the second bottom frame clamp is suitable for limiting the displacement of the first bottom rod, the second bottom rod and the fourth bottom rod;
the third bottom frame clamp is suitable for limiting the displacement of the first bottom rod, the second bottom rod and the fifth bottom rod.
Further, the first bottom frame clamp comprises a first bottom frame supporting seat I, a second bottom frame supporting seat II, a third bottom frame supporting seat, a first bottom frame air cylinder I, a second bottom frame air cylinder II, a first bottom frame electromagnet I, a second bottom frame electromagnet II and a third bottom frame electromagnet III;
the first bottom frame supporting seat is suitable for supporting a first bottom rod, and the first bottom frame electromagnet is fixedly arranged on the first bottom frame supporting seat and is suitable for vertically adsorbing and fixing the first bottom rod;
the first bottom frame supporting seat II is suitable for supporting a third bottom rod, and the first bottom frame electromagnet II is fixedly arranged on the first bottom frame supporting seat II and is suitable for vertically adsorbing and fixing the third bottom rod;
the first bottom frame supporting seat III is suitable for supporting a second bottom rod, and the first bottom frame electromagnet III is fixedly arranged on the first bottom frame supporting seat III and is suitable for vertically adsorbing and fixing the second bottom rod;
the first bottom frame cylinder is used for supporting the first bottom rod on the first bottom frame supporting seat in the horizontal direction;
and the second bottom rod is abutted against the third first bottom frame supporting seat by the second first bottom frame cylinder in the horizontal direction.
Further, the second bottom frame clamp comprises a first bottom frame supporting seat, a second bottom frame supporting seat, a third bottom frame supporting seat, a first bottom frame air cylinder, a second bottom frame air cylinder and a second bottom frame electromagnet;
the first bottom frame supporting seat is suitable for supporting the first bottom rod and the fourth bottom rod, and the first bottom frame cylinder compresses the first bottom rod and the fourth bottom rod on the first second bottom frame supporting seat in the vertical direction;
the second bottom frame supporting seat II is suitable for supporting a second bottom rod and a fourth bottom rod, and the second bottom frame cylinder II compresses the second bottom rod and the fourth bottom rod on the second bottom frame supporting seat II in the vertical direction;
second underframe supporting seat three is suitable for supporting the fourth sill bar, second underframe electro-magnet setting is suitable for fixedly to the vertical absorption of fourth sill bar on second underframe supporting seat three.
Further, the third bottom frame clamp comprises a first third bottom frame support seat, a second third bottom frame support seat, a first third bottom frame air cylinder, a second third bottom frame air cylinder, a first third bottom frame electromagnet, a second third bottom frame electromagnet and a third bottom frame electromagnet;
the first third bottom frame supporting seat is suitable for supporting the first bottom rod, and the first third bottom frame electromagnet is fixedly arranged on the first third bottom frame supporting seat and is suitable for vertically adsorbing and fixing the first bottom rod;
the second third bottom frame supporting seat is suitable for supporting a fifth bottom rod, and the second third bottom frame electromagnet is fixedly arranged on the second third bottom frame supporting seat and is suitable for vertically adsorbing and fixing the fifth bottom rod;
the third bottom frame supporting seat III is suitable for supporting a second bottom rod, and the third bottom frame electromagnet III is fixedly arranged on the third bottom frame supporting seat III and is suitable for vertically adsorbing and fixing the second bottom rod;
the first bottom frame cylinder supports the first bottom rod on the first third bottom frame supporting seat in the horizontal direction;
and the second bottom frame cylinder II supports the second bottom rod tightly on the third bottom frame supporting seat III in the horizontal direction.
Further, first underframe anchor clamps include still include states first underframe bottom plate, first underframe supporting seat one, first underframe supporting seat two, first underframe supporting seat three, first underframe cylinder one, first underframe cylinder two are fixed to be set up on first underframe bottom plate.
Further, the second underframe fixture further comprises a second underframe bottom plate, the first second underframe support seat, the third second underframe support seat, the first second underframe cylinder and the second underframe cylinder are fixedly arranged on the second underframe bottom plate.
Further, third underframe anchor clamps still include third underframe bottom plate, third underframe supporting seat one, third underframe supporting seat two, third underframe supporting seat three, third underframe cylinder one, third underframe cylinder two are fixed to be set up on third underframe bottom plate.
The utility model has the advantages that:
the utility model provides a sofa back underframe welding jig can realize pressing from both sides tightly fixedly respectively to each sill bar that makes up the sofa back underframe, avoids artifical manual clamp tightly, promotes clamping efficiency and quality to each sill bar of sofa back underframe before the welding, makes things convenient for subsequent welding robot to unify the welding between the sill bar on the anchor clamps, promotes back underframe welding quality and efficiency.
Drawings
The present invention will be further explained with reference to the accompanying drawings.
FIG. 1 is a schematic view of a backrest frame of a sofa, which is composed of a backrest bevel frame and a backrest bottom frame;
FIG. 2 is a schematic view of a sofa backrest bottom frame welding fixture;
FIG. 3 is a schematic view of a sofa backrest bottom frame welding fixture (with the weld base removed);
figure 4 is a schematic view of a first bottom frame clamp;
figure 5 is a second bottom frame clamp schematic;
figure 6 is a third bottom frame clamp schematic;
11, a backrest bevel frame, 1101, a first ejector rod, 1102, a second ejector rod, 1103, a first diagonal brace, 1104, a second diagonal brace, 1105, a third diagonal brace, 1106, a fourth diagonal brace, 1107, a first vertical brace, 1108, a second vertical brace, 1109, a third vertical brace, 1111, a first connecting rod, 1112, a second connecting rod, 1113, a third connecting rod, 1114, a fourth connecting rod, 1115, a fifth connecting rod, 1116 and a sixth connecting rod;
12. the backrest bottom frame 121, the first bottom rod 122, the second bottom rod 123, the third bottom rod 124, the fourth bottom rod 125 and the fifth bottom rod;
31. the first bottom frame clamp comprises a first bottom frame clamp body 3101, first bottom frame support seats I and 3102, first bottom frame support seats II and 3103, first bottom frame support seats III and 3104, first bottom frame air cylinders I and 3105, first bottom frame air cylinders II and 3106, first bottom frame electromagnets I and 3107, first bottom frame electromagnets II and 3108, first bottom frame electromagnets III and 3109 and a first bottom frame bottom plate;
32. the second bottom frame fixture 3201, the first bottom frame support 3202, the second bottom frame support II, 3203, the third bottom frame support 3204, the first bottom frame cylinder 3205, the second bottom frame cylinder II, 3206, the second bottom frame electromagnet, 3207 and the second bottom frame bottom plate;
33. a third bottom frame clamp, 3301, a first third bottom frame support seat, 3302, a second third bottom frame support seat, 3303, a third bottom frame support seat, 3304, a first third bottom frame cylinder, 3305, a second third bottom frame cylinder, 3306, a first third bottom frame electromagnet, 3307, a second third bottom frame electromagnet, 3308, a third bottom frame electromagnet, 3309, and a third bottom frame bottom plate;
34. and welding the bottom plate.
Detailed Description
The invention will now be further described with reference to the accompanying drawings. The drawings are simplified schematic diagrams only illustrating the basic structure of the present invention in a schematic manner, and thus show only the components related to the present invention.
As shown in fig. 1-6; the utility model provides a sofa back underframe welding jig, sofa back underframe 12 includes first sill bar 121, second sill bar 122, third sill bar 123, fourth sill bar 124 and fifth sill bar 125, and first sill bar 121, second sill bar 122, third sill bar 123 and fifth sill bar 125 constitute rectangle frame structure, fourth sill bar 124 is connected between first sill bar 121 and second sill bar 122, and third sill bar 123 and fifth sill bar 125 also are connected between first sill bar 121 and second sill bar 122.
Secondly, the sofa backrest bevel frame 11 includes a first top bar 1101, a second top bar 1102, a first diagonal brace 1103, a second diagonal brace 1104, a third diagonal brace 1105, a fourth diagonal brace 1106, a first vertical brace 1107, a second vertical brace 1108, a third vertical brace 1109, a first connecting rod 1111, a second connecting rod 1112, a third connecting rod 1113, a fourth connecting rod 1114, a fifth connecting rod 1115 and a sixth connecting rod 1116; the first connecting rod 1111, the second connecting rod 1112, the third connecting rod 1113 and the fourth connecting rod 1114 are fixedly arranged between the first top rod 1101 and the second top rod 1102 side by side; the first diagonal brace 1103, the second diagonal brace 1104, the third diagonal brace 1105 and the fourth diagonal brace 1106 are fixedly connected with the first top bar 1101; the first vertical support rod 1107, the second vertical support rod 1108 and the third vertical support rod 1109 are fixedly connected with the first top rod 1101; the fifth connecting rod 1115 connects the first diagonal strut 1103 and the first vertical strut 1107, and the sixth connecting rod 1116 connects the fourth diagonal strut 1106 and the third vertical strut 1109;
the sofa back bevel frame 11 and the sofa back bottom frame 12 are finally welded to form the sofa back frame.
The backrest bottom frame welding jig comprises a first bottom frame jig 31, a second bottom frame jig 32 and a third bottom frame jig 33; the first bottom frame clamp 31 is suitable for limiting the displacement of the first bottom rod 121, the second bottom rod 122 and the third bottom rod 123; the second bottom frame clamp 32 is adapted to limit the displacement of the first bottom bar 121, the second bottom bar 122 and the fourth bottom bar 124; the third bottom frame jig 33 is adapted to limit the displacement of the first bottom bar 121, the second bottom bar 122 and the fifth bottom bar 125.
Specifically, as shown in fig. 4, the first bottom frame clamp 31 includes a first bottom frame bottom plate 3109, a first bottom frame support base 3101, a second bottom frame support base 3102, a third bottom frame support base 3103, a first bottom frame cylinder 3104, a second bottom frame cylinder 3105, a first bottom frame electromagnet 3106, a second bottom frame electromagnet 3107, and a third bottom frame electromagnet 3108; the first bottom frame supporting seat 3101, the second bottom frame supporting seat 3102, the third bottom frame supporting seat 3103, the first bottom frame cylinder 3104 and the second bottom frame cylinder 3105 are fixedly arranged on the first bottom frame plate 3109.
The first bottom frame support base 3101 is suitable for supporting the first bottom rod 121, and the first bottom frame electromagnet 3106 is fixedly arranged on the first bottom frame support base 3101 and is suitable for vertically adsorbing and fixing the first bottom rod 121; the second first bottom frame support base 3102 is suitable for supporting the third bottom rod 123, and the second first bottom frame electromagnet 3107 is fixedly arranged on the second first bottom frame support base 3102 and is suitable for vertically adsorbing and fixing the third bottom rod 123; the third first bottom frame support base 3103 is suitable for supporting the second bottom rod 122, and the third first bottom frame electromagnet 3108 is fixedly arranged on the third first bottom frame support base 3103 and is suitable for vertically adsorbing and fixing the second bottom rod 122; the first bottom frame cylinder 3104 tightly presses the first bottom rod 121 on the first bottom frame supporting seat 3101 in the horizontal direction; the second bottom frame cylinder 3105 horizontally abuts the second bottom rod 122 against the third bottom frame support base 3103.
Specifically, as shown in fig. 5, the second bottom frame clamp 32 includes a second bottom frame bottom plate 3207, a second bottom frame support base 3201, a second bottom frame support base 3202, a second bottom frame support base third 3203, a second bottom frame cylinder 3204, a second bottom frame cylinder 3205, and a second bottom frame electromagnet 3206; the first second bottom frame support 3201, the second bottom frame support 3202, the third second bottom frame support 3203, the first second bottom frame cylinder 3204 and the second bottom frame cylinder 3205 are fixedly arranged on the second bottom frame base plate 3207.
The second bottom frame support seat first 3201 is adapted to support the first bottom rod 121 and the fourth bottom rod 124, and the second bottom frame cylinder 3204 vertically presses the first bottom rod 121 and the fourth bottom rod 124 against the second bottom frame support seat first 3201; the second bottom frame support seat second 3202 is adapted to support the second bottom rod 122 and the fourth bottom rod 124, and the second bottom frame cylinder second 3205 vertically presses the second bottom rod 122 and the fourth bottom rod 124 against the second bottom frame support seat second 3202; the third bottom frame support seat 3203 is suitable for supporting the fourth bottom rod 124, and the second bottom frame electromagnet 3206 is arranged on the third bottom frame support seat 3203 and is suitable for vertically adsorbing and fixing the fourth bottom rod 124.
Specifically, as shown in fig. 6, the third bottom frame clamp 33 includes a third bottom frame bottom plate 3309, a third bottom frame supporting seat first 3301, a third bottom frame supporting seat second 3302, a third bottom frame supporting seat third 3303, a third bottom frame cylinder first 3304, a third bottom frame cylinder second 3305, a third bottom frame electromagnet first 3306, a third bottom frame electromagnet second 3307, and a third bottom frame electromagnet third 3308; and the first third bottom frame supporting seat 3301, the second third bottom frame supporting seat 3302, the third bottom frame supporting seat three 3303, the first third bottom frame cylinder 3304 and the second third bottom frame cylinder 3305 are fixedly arranged on the third bottom frame base plate 3309.
The first third bottom frame supporting seat 3301 is suitable for supporting the first bottom rod 121, and the first third bottom frame electromagnet 3306 is fixedly arranged on the first third bottom frame supporting seat 3301 and is suitable for vertically adsorbing and fixing the first bottom rod 121; the second third bottom frame supporting seat 3302 is suitable for supporting the fifth bottom rod 125, and the second third bottom frame electromagnet 3307 is fixedly arranged on the second third bottom frame supporting seat 3302 and is suitable for vertically adsorbing and fixing the fifth bottom rod 125; the third bottom frame supporting seat third 3303 is suitable for supporting the second bottom rod 122, and the third bottom frame electromagnet third 3308 is fixedly arranged on the third bottom frame supporting seat third 3303 and is suitable for vertically adsorbing and fixing the second bottom rod 122; the first bottom frame cylinder 3304 supports the first bottom rod 121 on the first third bottom frame supporting seat 3301 in the horizontal direction; the second bottom frame cylinder 3305 horizontally supports the second bottom bar 122 against the third bottom frame support base 3303.
First underframe anchor clamps 31, second underframe anchor clamps 32 and third underframe anchor clamps 33 all set up on splice plate 34, set up two slide rails on splice plate 34, and first underframe anchor clamps 31, second underframe anchor clamps 32 and third underframe anchor clamps 33 can be through two slide rails adjusting position on splice plate 34 respectively, wait to lock fixedly after the underframe anchor clamps have adjusted the position.
The feeding robot places the first bottom rod 121 on the first bottom frame supporting seat first 3101, the second bottom frame supporting seat first 3201 and the third bottom frame supporting seat first 3301, and then the first bottom rod is fixed by the corresponding electromagnet and the cylinder;
placing the third bottom rod 123 on the second bottom frame supporting seat 3102, and adsorbing and fixing by corresponding electromagnets;
placing the fourth bottom rod 124 on the first bottom frame support 3201, the second bottom frame support 3202 and the third bottom frame support 3203, and then fixing by corresponding electromagnets and cylinders;
placing the fifth bottom rod 125 on the second bottom frame supporting seat 3302, and adsorbing and fixing by a corresponding electromagnet;
placing the second bottom rod 122 on the first bottom frame support seat third 3103, the second bottom frame support seat second 3202 and the third bottom frame support seat second 3302, and then fixing by corresponding electromagnets and cylinders;
after all the bottom rods are fixed, the welding robots weld the bottom rods to form the finished backrest bottom frame 12.
Adopt the utility model discloses a sofa back underframe 12 welding jig, to the centre gripping of each sill bar reliable and stable, avoid artifical manual clamp tight, promote clamping efficiency and quality to sofa back underframe 12 each sill bar before the welding, make things convenient for subsequent welding robot to unify the welding between the sill bar on the anchor clamps, promote back underframe 12 welding quality and efficiency.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (7)
1. A sofa backrest bottom frame welding clamp is characterized in that the sofa backrest bottom frame comprises a first bottom rod, a second bottom rod, a third bottom rod, a fourth bottom rod and a fifth bottom rod, the first bottom rod, the second bottom rod, the third bottom rod and the fifth bottom rod form a rectangular frame structure, and the fourth bottom rod is connected with the first bottom rod and the second bottom rod;
the backrest bottom frame welding clamp comprises a first bottom frame clamp, a second bottom frame clamp and a third bottom frame clamp;
the first bottom frame clamp is suitable for limiting the displacement of the first bottom rod, the second bottom rod and the third bottom rod;
the second bottom frame clamp is suitable for limiting the displacement of the first bottom rod, the second bottom rod and the fourth bottom rod;
the third bottom frame clamp is suitable for limiting the displacement of the first bottom rod, the second bottom rod and the fifth bottom rod.
2. The sofa backrest bottom frame welding fixture according to claim 1, wherein the first bottom frame fixture comprises a first bottom frame support, a second bottom frame support, a third bottom frame support, a first bottom frame air cylinder, a second bottom frame air cylinder, a first bottom frame electromagnet, a second bottom frame electromagnet and a third bottom frame electromagnet;
the first bottom frame supporting seat is suitable for supporting a first bottom rod, and the first bottom frame electromagnet is fixedly arranged on the first bottom frame supporting seat and is suitable for vertically adsorbing and fixing the first bottom rod;
the first bottom frame supporting seat II is suitable for supporting a third bottom rod, and the first bottom frame electromagnet II is fixedly arranged on the first bottom frame supporting seat II and is suitable for vertically adsorbing and fixing the third bottom rod;
the first bottom frame supporting seat III is suitable for supporting a second bottom rod, and the first bottom frame electromagnet III is fixedly arranged on the first bottom frame supporting seat III and is suitable for vertically adsorbing and fixing the second bottom rod;
the first bottom frame cylinder is used for supporting the first bottom rod on the first bottom frame supporting seat in the horizontal direction;
and the second bottom rod is abutted against the third first bottom frame supporting seat by the second first bottom frame cylinder in the horizontal direction.
3. The sofa backrest bottom frame welding fixture according to claim 1, wherein the second bottom frame fixture comprises a second bottom frame support seat I, a second bottom frame support seat II, a second bottom frame support seat III, a second bottom frame cylinder I, a second bottom frame cylinder II and a second bottom frame electromagnet;
the first bottom frame supporting seat is suitable for supporting the first bottom rod and the fourth bottom rod, and the first bottom frame cylinder compresses the first bottom rod and the fourth bottom rod on the first second bottom frame supporting seat in the vertical direction;
the second bottom frame supporting seat II is suitable for supporting a second bottom rod and a fourth bottom rod, and the second bottom frame cylinder II compresses the second bottom rod and the fourth bottom rod on the second bottom frame supporting seat II in the vertical direction;
second underframe supporting seat three is suitable for supporting the fourth sill bar, second underframe electro-magnet setting is suitable for fixedly to the vertical absorption of fourth sill bar on second underframe supporting seat three.
4. The sofa backrest bottom frame welding fixture as claimed in claim 1,
the third bottom frame clamp comprises a first third bottom frame supporting seat, a second third bottom frame supporting seat, a first third bottom frame air cylinder, a second third bottom frame air cylinder, a first third bottom frame electromagnet, a second third bottom frame electromagnet and a third bottom frame electromagnet;
the first third bottom frame supporting seat is suitable for supporting the first bottom rod, and the first third bottom frame electromagnet is fixedly arranged on the first third bottom frame supporting seat and is suitable for vertically adsorbing and fixing the first bottom rod;
the second third bottom frame supporting seat is suitable for supporting a fifth bottom rod, and the second third bottom frame electromagnet is fixedly arranged on the second third bottom frame supporting seat and is suitable for vertically adsorbing and fixing the fifth bottom rod;
the third bottom frame supporting seat III is suitable for supporting a second bottom rod, and the third bottom frame electromagnet III is fixedly arranged on the third bottom frame supporting seat III and is suitable for vertically adsorbing and fixing the second bottom rod;
the first bottom frame cylinder supports the first bottom rod on the first third bottom frame supporting seat in the horizontal direction;
and the second bottom frame cylinder II supports the second bottom rod tightly on the third bottom frame supporting seat III in the horizontal direction.
5. The sofa backrest bottom frame welding fixture as claimed in claim 2, wherein,
first underframe anchor clamps still include first underframe bottom plate, first underframe supporting seat one, first underframe supporting seat two, first underframe supporting seat three, first underframe cylinder one, first underframe cylinder two are fixed to be set up on first underframe bottom plate.
6. The sofa backrest bottom frame welding fixture according to claim 3, wherein the second bottom frame fixture further comprises a second bottom frame bottom plate, and the second bottom frame support I, the second bottom frame support II, the second bottom frame support III, the second bottom frame cylinder I, and the second bottom frame cylinder II are fixedly arranged on the second bottom frame bottom plate.
7. The sofa backrest bottom frame welding fixture according to claim 4, wherein the third bottom frame fixture further comprises a third bottom frame bottom plate, and the third bottom frame support I, the third bottom frame support II, the third bottom frame support III, the third bottom frame cylinder I, and the third bottom frame cylinder II are fixedly arranged on the third bottom frame bottom plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922141171.7U CN210997286U (en) | 2019-12-03 | 2019-12-03 | Sofa backrest bottom frame welding jig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922141171.7U CN210997286U (en) | 2019-12-03 | 2019-12-03 | Sofa backrest bottom frame welding jig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210997286U true CN210997286U (en) | 2020-07-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922141171.7U Active CN210997286U (en) | 2019-12-03 | 2019-12-03 | Sofa backrest bottom frame welding jig |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210997286U (en) |
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2019
- 2019-12-03 CN CN201922141171.7U patent/CN210997286U/en active Active
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