CN213003533U - Positioning fixture for welding large-scale components - Google Patents
Positioning fixture for welding large-scale components Download PDFInfo
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- CN213003533U CN213003533U CN202021800610.7U CN202021800610U CN213003533U CN 213003533 U CN213003533 U CN 213003533U CN 202021800610 U CN202021800610 U CN 202021800610U CN 213003533 U CN213003533 U CN 213003533U
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- moving unit
- bracket
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- clamping
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Abstract
The utility model discloses a positioning clamp for welding large-scale components, which comprises a bracket; the first stop block is arranged on one side of the bracket; the first moving unit is arranged on the opposite side of the bracket and can drive a component placed on the bracket to move towards the side where the first stop block is located; and a clamping unit provided at a side of the bracket where the first stopper is provided, for clamping the component placed on the bracket to the bracket. When the welding device is used, the first moving unit drives two parts to be welded, which are arranged on the support along the direction X perpendicular to the driving direction of the first moving unit, to abut against the first stop block so as to clamp the parts to be welded on the support; and then, clamping the part to be welded between the clamping unit and the support through the clamping unit arranged on the side, provided with the first baffle, of the support to ensure that the part to be welded is clamped on the support smoothly, so that the part to be welded is prevented from swinging relative to the support when the first moving unit clamps the part to be welded on the support.
Description
Technical Field
The utility model relates to a welding auxiliary device, concretely relates to positioning fixture is used in welding of large-scale part.
Background
In order to make the welded welding seam level and smooth, before welding two parts, need press from both sides tightly two parts, avoid because of the part takes place to rock and lead to the condition of welding seam unevenness such as welding seam width is inconsistent when welding, lead to welding quality subalternation problem.
SUMMERY OF THE UTILITY MODEL
In order to avoid rocking because of treating the welding part when the welding, lead to the welding seam unevenness's such as welding seam width condition not uniform, lead to welding quality subalternation problem, according to the utility model discloses an aspect provides large-scale positioning fixture for part welding.
The positioning clamp for welding the large-scale component comprises a bracket; the first stop block is arranged on one side of the bracket; the first moving unit is arranged on the opposite side of the bracket and can drive a component placed on the bracket to move towards the side where the first stop block is located; and a clamping unit provided at a side of the bracket where the first stopper is provided, for clamping the component placed on the bracket to the bracket.
When in use, the two parts to be welded are arranged on the bracket along the direction X perpendicular to the driving of the first moving unit; then, driving the two parts to be welded to abut against the first stop block through the first moving unit so as to clamp the parts to be welded on the bracket; then, clamping the part to be welded between the clamping unit and the support through the clamping unit arranged on the side, provided with the first baffle, of the support to ensure that the part to be welded is clamped on the support smoothly, and avoiding the part to be welded swinging relative to the support when the first moving unit clamps the part to be welded on the support; so that the positioning fixture for welding the large-sized component can be used for welding of the robot automatic welding machine.
In some embodiments, a second stop block is further arranged on one side of the bracket adjacent to the first stop block; the opposite side of the support, which is provided with the second stop block, is also provided with a second moving unit, the second moving unit is arranged to drive the part placed on the support to move towards one side where the second stop block is located, and the driving direction X of the first moving unit is not parallel to the driving direction Y of the second moving unit.
Therefore, the two parts to be welded can be clamped on the bracket through the second moving unit, so that the surfaces to be welded of the two parts can be attached to each other, and the welding quality is further ensured.
In some embodiments, the driving direction X of the first moving unit is perpendicular to the driving direction Y of the second moving unit. So that the surfaces to be welded of the two parts to be welded, which are clamped on the bracket by the second moving unit, can be closely attached.
In some embodiments, the positioning jig for welding large components further includes a base on which the bracket is rotatably provided about the first pivot shaft by the first rotating unit. Therefore, the angle of rotation of the bracket relative to the base can be adjusted through the first rotating unit, so that the surfaces to be welded of the two parts to be welded clamped on the bracket can be matched with the angle of the welding gun.
In some embodiments, the first pivot axis is perpendicular to the driving direction X of the first mobile unit. When the first rotating unit drives the support to rotate, no matter which direction the first rotating unit rotates, the part to be welded clamped on the support can be supported through the first moving unit or the clamping unit, and the part to be welded clamped on the support is prevented from moving relative to the support due to gravity caused by the rotation of the support.
In some embodiments, the first pivot axis extends in a horizontal direction. After the first rotating unit drives the support to rotate, the height difference between the two parts to be welded, which are clamped on the support, cannot be changed, so that the height difference of the welding gun walking in the welding process does not need to be adjusted, and automatic welding is convenient to realize.
In some embodiments, the clamping unit includes a third moving unit pivotably provided on the bracket; a connecting rod pivotably provided on the third moving unit; the second pivot shaft is arranged on the connecting rod and can be pivotally arranged on the bracket or the first stop block; and a clamping block provided on the second pivot shaft; the third moving unit is arranged to drive the connecting rod to move so as to drive the clamping block to swing around the second pivot shaft between the side facing to and the side facing away from the first moving unit.
The third moving unit drives the connecting rod to reciprocate to drive the second pivot shaft to rotate, so that the clamping block connected to the second pivot shaft is driven to swing; when the clamping block swings toward the side on which the first moving unit is located, the part to be welded placed on the support can be clamped on the support by the clamping block; when the clamping block is swung away from the side on which the first displacement unit is located, the completely welded component between the clamping block and the holder can be removed in order to place the component to be welded.
In some embodiments, the second pivot axis is arranged perpendicular to the driving direction X of the first mobile unit in a horizontal plane.
So that the clamping force exerted by the clamping blocks connected to the second pivot shaft on the parts to be welded is equal everywhere along the extension direction of the second pivot shaft, so as to ensure that the clamping blocks can stably clamp the parts to be welded on the bracket.
In some embodiments, the first moving units are provided in at least two and are distributed in a horizontal plane along a driving direction X perpendicular to the first moving units.
So that the large-sized part placed on the support can be stably clamped on the support without deflection of the large-sized part to be welded with respect to the support during clamping on the support by the first moving unit.
Drawings
Fig. 1 is a schematic structural view of a positioning jig for welding a large component according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of another view of the positioning fixture for welding large components shown in FIG. 1;
FIG. 3 is a schematic structural view of a positioning fixture for welding large components shown in FIG. 1 from another perspective;
FIG. 4 is an enlarged schematic view of the positioning jig for welding large components shown in FIG. 3;
FIG. 5 is an enlarged schematic view of the positioning jig for welding large components shown in FIG. 3 at B;
fig. 6 is an enlarged schematic structural view of the positioning jig for welding large components shown in fig. 3 at position C.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Fig. 1 to 6 schematically show a positioning jig for welding a large part according to an embodiment of the present invention.
Referring to fig. 1 and 3, the positioning jig for welding a large component includes a bracket 20, a first stopper 21, a first moving unit 30, and a clamping unit 40; wherein, the first block 21 is installed on one side of the bracket 20 and is arranged above the supporting surface of the bracket 20; the first moving unit 30 is arranged at the opposite side of the bracket 20 where the first stopper 21 is arranged, the first moving unit 30 is also arranged above the supporting surface of the bracket 20, and the first moving unit 30 is arranged to drive the component placed on the bracket 20 to move towards the side where the first stopper 21 is arranged so as to clamp the component placed on the supporting surface of the bracket 20 between the first stopper 21 and the first moving unit 30; the clamping unit 40 is provided at a side of the bracket 20 where the first stopper 21 is provided, for clamping the component placed on the bracket 20 to the bracket 20.
When in use, the two parts to be welded are arranged on the supporting surface of the bracket 20 along the direction X perpendicular to the driving direction of the first moving unit 30; then, the two parts to be welded are driven against the first stopper 21 by the first moving unit 30 to clamp the parts to be welded on the bracket 20; then, the part to be welded is clamped between the clamping unit 40 provided at the side of the support 20 where the first baffle is provided and the support 20 to ensure that the part to be welded is clamped on the support 20 smoothly, and the part to be welded is prevented from swinging relative to the support 20 when the first moving unit 30 clamps the part to be welded on the support 20.
Referring to fig. 1 and 2, in some embodiments, the first moving unit 30 employs an air cylinder or oil cylinder, the cylinder body of which is mounted on the bracket 20, the piston rod of which is disposed toward the first stopper 21, and the piston rod is disposed along the direction X.
Referring to fig. 1-5, in some embodiments, the piston rod is disposed in a horizontal direction.
In other embodiments, the first moving unit 30 may also be a ball screw structure, the screw is disposed along the direction X, the motor is mounted on the bracket 20 for driving the screw to rotate, and the nut is non-rotatably disposed on the bracket 20 relative to the bracket 20. The screw is driven by the motor to rotate and the nut is driven to move in the direction in which the screw extends, so as to clamp the component placed on the support surface of the support 20 between the nut and the first stop 21 (not shown in the figure).
Referring to fig. 1, in some embodiments, a second stopper 22 is further disposed on a side of the bracket 20 adjacent to the first stopper 21; the opposite side of the bracket 20, on which the second stopper 22 is provided, is further provided with a second moving unit 50, the second moving unit 50 being configured to drive the component placed on the bracket 20 to move toward the side on which the second stopper 22 is located, so as to clamp the component between the second moving unit 50 and the second stopper 22; the second moving unit 50 is also disposed above the supporting surface of the support 20, and the driving direction X of the first moving unit 30 is not parallel to the driving direction Y of the second moving unit 50.
With continued reference to fig. 1, it is preferable that the driving direction X of the first moving unit 30 is perpendicular to the driving direction Y of the second moving unit 50.
With continued reference to fig. 1, it is preferable that the driving direction Y of the second moving unit 50 is set in the horizontal direction.
Referring to fig. 1, in some embodiments, the second mobile unit 50 may employ a similar structure to the first mobile unit 30. For example, an air cylinder or an oil cylinder is used, the cylinder body of which is mounted on the bracket 20, the piston rod of which is disposed toward the second stopper 22, and the piston rod of which is disposed along the direction Y.
As another example, in other embodiments, a ball screw arrangement is employed, wherein the screw is disposed in the direction Y (not shown).
Referring to fig. 1, 3, 5 and 6, in some embodiments, the positioning jig for welding large components further includes a base 60, and the bracket 20 is rotatably provided on the base 60 about a first pivot shaft 71 by a first rotating unit 70.
With continued reference to fig. 1, 3, 5, and 6, in some embodiments, the bracket 20 is rotatably disposed on the base 60 by a first pivot shaft 71.
Referring to fig. 1 and 3, in some embodiments, the first pivot axis 71 is perpendicular to the driving direction X of the first mobile unit 30.
With continued reference to fig. 1 and 3, in some embodiments, the first pivot axis 71 is parallel to the driving direction Y of the second mobile unit 50.
In some embodiments, the first pivot shaft 71 is driven by a motor, and the motor driving the first pivot shaft 71 is mounted on the base 60. Thus, the angle and direction of rotation of the stand 20 relative to the base 60 can be adjusted by the motor.
Referring to fig. 1 to 3, 5 and 6, in some embodiments, the clamping unit 40 includes a third moving unit 41 pivotably mounted on the bracket 20; a connecting rod 42 pivotably provided on the third moving unit 41; a second pivot shaft 43 arranged on the connecting rod 42, wherein the second pivot shaft 43 is pivotally arranged on the bracket 20 or the first stop block 21; and a clamping block 44 provided on the second pivot shaft 43; the third displacement unit 41 is arranged to drive the connecting rod 42 in a displacement bringing the clamping block 44 about the second pivot axis 43 to swing between a side facing towards and a side facing away from the first displacement unit 30.
Referring to fig. 1, 3, 5 and 6, in some embodiments, the pivot axes of the third moving unit 41, the connecting rod 42 and the second pivot shaft 43 are parallel to each other.
With continued reference to fig. 1, 3, 5 and 6, in some embodiments the pivot axes of the third moving unit 41, the connecting rod 42 and the second pivot axis 43 are arranged perpendicular to the direction X.
With continued reference to fig. 1, 3, 5 and 6, in some embodiments the pivot axes of the third moving unit 41, the connecting rod 42 and the second pivot axis 43 are arranged parallel to the direction Y.
Referring to fig. 1, 3, 5 and 6, in some embodiments, the third moving unit 41 is a cylinder or an oil cylinder, a cylinder body of which is pivotally provided on the bracket 20, and a piston rod of which is pivotally connected to one end of a connecting rod 42; the second pivot shaft 43 is connected to the other end of the connecting rod 42.
Referring to fig. 2, 3 and 6, in some embodiments, the second pivot shaft 43 is non-circular in cross-section, and the second pivot shaft 43 is inserted into the connecting rod 42. Preferably, the second pivot shaft 43 is arranged perpendicular to the axial direction of the connecting rod 42.
Referring to fig. 2, 3, 5 and 6, in some embodiments, the clamping block 44 is provided to extend toward the side where the first moving unit 30 is located while extending upward, that is, a free end of the clamping block 44 is inclined toward the side where the first moving unit 30 is located, so as to clamp the component placed on the supporting surface of the support 20 to the support 20 when the third moving unit 41 is driven.
Referring to fig. 2, 3, 5 and 6, in some embodiments, a side of the clamping block 44 facing the first moving unit 30 is provided with an abutting portion 441 for abutting against a component placed on a supporting surface of the bracket 20.
Referring to fig. 1, 3 and 6, in some embodiments, the clamping block 44 is provided in plurality and on the second pivot shaft 43 in a direction in which the second pivot shaft 43 extends.
Referring to fig. 2, 3, 5 and 6, in some embodiments, each clamping block 44 is provided with a plurality of clamping portions distributed on the clamping block 44 along the extension direction of the clamping block 44. To clamp parts of different sizes or shapes.
Referring to fig. 1, in some embodiments, the second pivot shaft 43 is disposed perpendicular to the driving direction X of the first moving unit 30 in a horizontal plane.
Referring to fig. 1, 3 and 5, in some embodiments, the first moving units 30 are provided in at least two and are distributed in a horizontal plane along a driving direction X perpendicular to the first moving units 30.
Referring to fig. 2, in some embodiments, in order to avoid spattering of welding slag around during welding, a mounting mechanism 45 for mounting the baffle is provided on the clamping block 44, and the mounting mechanism 45 may be, for example, a through hole or a screw hole machined on the clamping block 44.
What has been described above are only some embodiments of the invention. For those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which are within the scope of the invention.
Claims (10)
1. Positioning fixture is used in welding of large-scale part, its characterized in that includes:
a support;
the first stop block is arranged on one side of the bracket;
the first moving unit is arranged on the opposite side of the bracket and can drive a component placed on the bracket to move towards the side where the first stop block is located;
and a clamping unit provided on the side of the bracket where the first stopper is provided, for clamping the component placed on the bracket to the bracket.
2. The positioning fixture for welding the large-scale component according to claim 1, wherein a second stopper is further provided on a side of the bracket adjacent to the first stopper;
the support is provided with a second stop block, the opposite side of the support, which is provided with the second stop block, is also provided with a second moving unit, the second moving unit is arranged to be capable of driving a part placed on the support to move towards one side where the second stop block is located, and the driving direction X of the first moving unit is not parallel to the driving direction Y of the second moving unit.
3. The positioning jig for welding large components according to claim 2, wherein a driving direction X of the first moving means is perpendicular to a driving direction Y of the second moving means.
4. The positioning jig for welding large components according to claim 1, 2 or 3, further comprising a base on which the bracket is provided rotatably about the first pivot shaft by the first rotating unit.
5. The positioning jig for welding large components according to claim 4, wherein the first pivot axis is perpendicular to a driving direction X of the first moving unit.
6. The positioning jig for welding large components according to claim 5, wherein the first pivot shaft extends in a horizontal direction.
7. The positioning jig for welding large components according to any one of claims 1 to 3, wherein the clamping unit includes:
a third moving unit pivotably provided on the stand;
a connecting rod pivotably provided on the third moving unit;
the second pivot shaft is arranged on the connecting rod and can be pivotally arranged on the bracket or the first stop block;
and a clamping block provided on the second pivot shaft;
the third moving unit is arranged to drive the connecting rod to move so as to drive the clamping block to swing around the second pivot shaft between a side facing to and a side facing away from the first moving unit.
8. The positioning jig for welding large components according to claim 7, wherein the second pivot shaft is provided perpendicular to the driving direction X of the first moving unit in a horizontal plane.
9. The positioning jig for welding large components according to claim 4, wherein the clamping unit includes:
a third moving unit pivotably provided on the stand;
a connecting rod pivotably provided on the third moving unit;
the second pivot shaft is arranged on the connecting rod and can be pivotally arranged on the bracket or the first stop block;
and a clamping block provided on the second pivot shaft;
the third moving unit is arranged to drive the connecting rod to move so as to drive the clamping block to swing around the second pivot shaft between a side facing to and a side facing away from the first moving unit;
the second pivot axis is disposed perpendicular to the driving direction X of the first moving unit in a horizontal plane.
10. The positioning jig for welding large components according to claim 4, wherein the number of the first moving units is at least two, and the first moving units are distributed in a horizontal plane along a driving direction X perpendicular to the first moving units.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021800610.7U CN213003533U (en) | 2020-08-25 | 2020-08-25 | Positioning fixture for welding large-scale components |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021800610.7U CN213003533U (en) | 2020-08-25 | 2020-08-25 | Positioning fixture for welding large-scale components |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213003533U true CN213003533U (en) | 2021-04-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021800610.7U Active CN213003533U (en) | 2020-08-25 | 2020-08-25 | Positioning fixture for welding large-scale components |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213003533U (en) |
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2020
- 2020-08-25 CN CN202021800610.7U patent/CN213003533U/en active Active
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