CN212918039U - Positioning device for projection welding of automobile body - Google Patents
Positioning device for projection welding of automobile body Download PDFInfo
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- CN212918039U CN212918039U CN202021331272.7U CN202021331272U CN212918039U CN 212918039 U CN212918039 U CN 212918039U CN 202021331272 U CN202021331272 U CN 202021331272U CN 212918039 U CN212918039 U CN 212918039U
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Abstract
The utility model relates to a welding equipment technical field just discloses a positioner is used in automobile body projection welding, including base, casing, cylinder, connecting plate, uide bushing and locating pin, the casing is fixed to be set up in the upper surface of base, the cylinder is fixed to be set up in the inside of casing, the connecting plate is fixed to be set up in the piston rod end of cylinder, the locating pin is fixed to be set up in the upper surface left and right sides of connecting plate, the uide bushing is fixed to be set up in the top of casing, the locating pin is that the slip sets up in the inside of uide bushing and extends to the top of casing, the locating pin is hollow structure, the inside of locating pin is equipped with ejection mechanism. The utility model discloses set up ejection mechanism between the locating hole on locating pin and white automobile body, increased frictional resistance between locating pin and the locating hole, guaranteed the location effect to white automobile body.
Description
Technical Field
The utility model relates to a welding equipment technical field especially relates to a positioner is used in automobile body projection welding.
Background
When a white automobile body of an automobile is welded, when parts need to be positioned, each part at least needs two positioning points, namely two positioning pin holes, and the workpiece is positioned by the clamping support, so that when the two parts are welded, four positioning pins are needed, and over-positioning can be formed; after welding, the workpiece is difficult to remove, so that two positioning pins are required to be designed into a telescopic form.
However, the outer wall of the existing welding positioning pin is too monotonous, and an ejection mechanism capable of increasing contact with the inner wall of the positioning hole in the white car body is not arranged, so that the friction resistance between the positioning pin and the positioning hole in the white car body is low, and the positioning effect on the white car is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problem that the positioning effect of the welding positioning pin on the white car is poor among the prior art, and the positioning device for projection welding of the automobile body is provided.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a positioning device for projection welding of an automobile body comprises a base, a shell, a cylinder, a connecting plate, guide sleeves and positioning pins, wherein the shell is fixedly arranged on the upper surface of the base, the cylinder is fixedly arranged inside the shell, the connecting plate is fixedly arranged at the tail end of a piston rod of the cylinder, the positioning pins are fixedly arranged on the left side and the right side of the upper surface of the connecting plate, the guide sleeves are fixedly arranged at the top of the shell, the positioning pins are arranged inside the guide sleeves in a sliding mode and extend to the upper side of the shell, the positioning pins are of hollow structures, and ejection mechanisms are arranged inside the positioning pins;
the ejection mechanism comprises a moving block, a moving rod, a trapezoidal block, a semicircular block, an ejection rod, a stop rod and a pushing rod, the moving block is horizontally arranged at the bottom of the positioning pin in a sliding manner, the moving rod is vertically and fixedly arranged on the upper surface of the moving block, the trapezoidal block is fixedly arranged at the upper end of the moving rod, sliding holes are respectively formed in the left side and the right side of the positioning pin and correspond to the trapezoidal block in position, the ejection rod is transversely arranged in the sliding holes in a sliding manner, one end of the ejection rod, which is positioned in the positioning pin, is fixedly connected with the semicircular block, a first elastic mechanism is arranged on the rod wall of the ejection rod, the stop rod is respectively and fixedly arranged on the left side and the right side of the moving block, strip-shaped openings for the ejection rod are respectively formed in the left side and the right side of the positioning pin, the pushing rod is fixedly arranged at the top of the shell and is, and a second elastic mechanism is arranged on the rod wall of the moving rod.
Preferably, the first elastic mechanism comprises a first spring, the first spring is movably sleeved on the rod wall of the ejector rod, and two ends of the first spring are fixedly connected with the side wall of the semicircular block and the inner side wall of the positioning pin respectively.
Preferably, the second elastic mechanism comprises a fixed plate and a second spring, the fixed plate is fixedly arranged inside the positioning pin and located above the moving block, the second spring is movably sleeved on the rod wall of the moving rod, and two ends of the second spring are fixedly connected with one side of the moving block opposite to the fixed plate respectively.
Preferably, the trapezoid blocks are located between the two semicircular blocks, and the left side and the right side of each trapezoid block are respectively abutted to the side walls of the two semicircular blocks.
Preferably, the left side and the right side of the upper surface of the base are both provided with mounting holes.
Compared with the prior art, the utility model provides a positioner is used in automobile body projection welding possesses following beneficial effect:
this positioner is used in automobile body projection welding, through the movable block that is equipped with, carriage release lever, trapezoidal piece, ejector pin, semicircular block, pin, catch bar, first spring, fixed plate and second spring, the locating pin is ejecting by the cylinder, can deviate from the ejector pin of locating pin inside and set up with the locating hole inner wall on the white automobile body offsets to can increase frictional resistance between locating pin and the locating hole, guaranteed the location effect on the white car.
The part that does not relate to among the device all is the same with prior art or can adopt prior art to realize, the utility model discloses set up ejection mechanism between the locating hole on locating pin and white automobile body, increased frictional resistance between locating pin and the locating hole, guaranteed the location effect to white automobile body.
Drawings
Fig. 1 is a schematic structural view of a positioning device for projection welding of an automobile body according to the present invention;
fig. 2 is an enlarged view of a portion a of fig. 1.
In the figure: the device comprises a base 1, a shell 2, a cylinder 3, a connecting plate 4, a guide sleeve 5, a positioning pin 6, a moving block 7, a moving rod 8, a trapezoidal block 9, an ejector rod 10, a semicircular block 11, a stop lever 12, a push rod 13, a first spring 14, a fixing plate 15, a second spring 16 and a mounting hole 17.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Referring to fig. 1-2, a positioning device for projection welding of an automobile body comprises a base 1, a shell 2, a cylinder 3, a connecting plate 4, a guide sleeve 5 and a positioning pin 6, wherein the shell 2 is fixedly arranged on the upper surface of the base 1, mounting holes 17 are formed in the left side and the right side of the upper surface of the base 1, the cylinder 3 is fixedly arranged in the shell 2, the connecting plate 4 is fixedly arranged at the tail end of a piston rod of the cylinder 3, the positioning pin 6 is fixedly arranged on the left side and the right side of the upper surface of the connecting plate 4, the guide sleeve 5 is fixedly arranged at the top of the shell 2, the positioning pin 6 is slidably arranged in the guide sleeve 5 and extends to the upper side of the shell 2, the positioning pin 6;
the ejection mechanism comprises a moving block 7, a moving rod 8, a trapezoidal block 9, semicircular blocks 11, an ejection rod 10, a stop lever 12 and a push rod 13, the moving block 7 is horizontally arranged at the bottom of the positioning pin 6 in a sliding manner, the moving rod 8 is vertically and fixedly arranged on the upper surface of the moving block 7, the trapezoidal block 9 is fixedly arranged at the upper end of the moving rod 8, sliding holes are respectively formed in the left side and the right side of the positioning pin 6 and in positions corresponding to the trapezoidal blocks 9, the ejection rod 10 is transversely arranged in the sliding holes in a sliding manner, one end of the ejection rod 10 positioned in the positioning pin 6 is fixedly connected with the semicircular blocks 11, the trapezoidal block 9 is positioned between the two semicircular blocks 11, the left side and the right side of the trapezoidal block 9 are respectively abutted against the side walls of the two semicircular blocks 11, a first elastic mechanism is arranged on the rod wall of the ejection rod 10, the stop lever 12 is respectively and fixedly arranged on the left side and the right side of the moving block 7, strip, the push rod 13 is fixedly arranged at the top of the shell 2 and positioned at the left side and the right side of the positioning pin 6, the push rod 13 and the stop lever 12 are correspondingly arranged in position, and a second elastic mechanism is arranged on the rod wall of the moving rod 8.
The first elastic mechanism comprises a first spring 14, the first spring 14 is movably sleeved on the rod wall of the ejector rod 10, and two ends of the first spring 14 are fixedly connected with the side wall of the semicircular block 11 and the inner side wall of the positioning pin 6 respectively.
The second elastic mechanism comprises a fixed plate 15 and a second spring 16, the fixed plate 15 is fixedly arranged inside the positioning pin 6 and located above the moving block 7, the second spring 16 is movably sleeved on the rod wall of the moving rod 8, and two ends of the second spring 16 are fixedly connected with one side of the moving block 7 opposite to the fixed plate 15 respectively.
In the utility model, when in use, the cylinder 3 is stretched out to drive the two positioning pins 6 to push out the inner part of the positioning hole inserted in the body-in-white from the inner part of the shell 2 through the connecting plate 4, the stop lever 12 can be pushed by the push rod 13 when the connecting plate 4 moves upwards, so that the moving block 7 moves downwards, the moving block 7 drives the trapezoidal block 9 to move downwards through the moving rod 8 and enables the two sides of the trapezoidal block to extrude the two semicircular blocks 11, thereby the two ejector rods 10 can be pushed out from the inner part of the positioning pins 6 and are abutted against the inner wall of the positioning hole in the body-in-white, the friction resistance between the positioning pins 6 and the positioning hole is increased, and the positioning effect of the; when the body-in-white needs to be taken out, the air cylinder 3 retracts to enable the positioning pin 6 to move to the inside of the shell 2, the first spring 14 and the second spring 16 which are compressed can respectively apply external force to the semicircular blocks 11 and the moving block 7, the second spring 16 applies external force to the moving block 7 and enables the trapezoidal blocks 9 to move upwards and separate from the two semicircular blocks 11, and the first spring 14 applies external force to the semicircular blocks 11 to enable the ejector rod 10 to be separated from the inner wall of the positioning hole in the body-in-white and move to the inside of the positioning pin 6, so that the body-in-white can be taken down.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (5)
1. The positioning device for projection welding of the automobile body comprises a base (1), a shell (2), a cylinder (3), a connecting plate (4), a guide sleeve (5) and a positioning pin (6), and is characterized in that the shell (2) is fixedly arranged on the upper surface of the base (1), the cylinder (3) is fixedly arranged in the shell (2), the connecting plate (4) is fixedly arranged at the tail end of a piston rod of the cylinder (3), the positioning pin (6) is fixedly arranged on the left side and the right side of the upper surface of the connecting plate (4), the guide sleeve (5) is fixedly arranged at the top of the shell (2), the positioning pin (6) is slidably arranged in the guide sleeve (5) and extends to the upper side of the shell (2), the positioning pin (6) is of a hollow structure, and an ejection mechanism is arranged in the positioning pin (6);
the ejection mechanism comprises a moving block (7), a moving rod (8), a trapezoidal block (9), a semicircular block (11), an ejection rod (10), a stop lever (12) and a push rod (13), the moving block (7) is horizontally arranged at the bottom of the positioning pin (6) in a sliding manner, the moving rod (8) is vertically and fixedly arranged on the upper surface of the moving block (7), the trapezoidal block (9) is fixedly arranged at the upper end of the moving rod (8), sliding holes are respectively formed in the left side and the right side of the positioning pin (6) and in positions corresponding to the trapezoidal block (9), the ejection rod (10) is transversely arranged in the sliding holes in a sliding manner, one end, located inside the positioning pin (6), of the ejection rod (10) is fixedly connected with the semicircular block (11), a first elastic mechanism is arranged on the rod wall of the ejection rod (10), and the stop lever (12) is respectively and fixedly arranged on the left side and the right side of the moving block (7), the bar mouth that is used for pin (12) to stretch out is all offered to the left and right sides of locating pin (6), catch bar (13) are fixed to be set up in the top of casing (2) and are located the left and right sides of locating pin (6), catch bar (13) and pin (12) are the position and correspond the setting, the pole wall of carriage release lever (8) is equipped with second elastic mechanism.
2. The positioning device for projection welding of the automobile body according to claim 1, wherein the first elastic mechanism comprises a first spring (14), the first spring (14) is movably sleeved on the rod wall of the ejector rod (10), and two ends of the first spring (14) are fixedly connected with the side wall of the semicircular block (11) and the inner side wall of the positioning pin (6) respectively.
3. The positioning device for projection welding of the automobile body according to claim 1, wherein the second elastic mechanism comprises a fixed plate (15) and a second spring (16), the fixed plate (15) is fixedly arranged inside the positioning pin (6) and above the moving block (7), the second spring (16) is movably sleeved on the rod wall of the moving rod (8), and two ends of the second spring (16) are fixedly connected with one side of the moving block (7) opposite to the fixed plate (15) respectively.
4. The positioning device for projection welding of automobile bodies according to claim 1, characterized in that the trapezoidal block (9) is positioned between the two semicircular blocks (11), and the left and right sides of the trapezoidal block (9) are respectively abutted against the side walls of the two semicircular blocks (11).
5. The positioning device for projection welding of the automobile body according to claim 1, characterized in that the left and right sides of the upper surface of the base (1) are provided with mounting holes (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021331272.7U CN212918039U (en) | 2020-07-09 | 2020-07-09 | Positioning device for projection welding of automobile body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021331272.7U CN212918039U (en) | 2020-07-09 | 2020-07-09 | Positioning device for projection welding of automobile body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212918039U true CN212918039U (en) | 2021-04-09 |
Family
ID=75330023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021331272.7U Active CN212918039U (en) | 2020-07-09 | 2020-07-09 | Positioning device for projection welding of automobile body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212918039U (en) |
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2020
- 2020-07-09 CN CN202021331272.7U patent/CN212918039U/en active Active
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