Long lug plate welding positioning device

Abstract

The utility model provides a long lug plate welding positioning device, and belongs to the technical field of tailor-welding tools. The technical problems that in the prior art, a positioning device and a workpiece are difficult to disassemble, and the positioning size of the positioning device cannot be adjusted are solved. According to the technical scheme, the long lug plate welding positioning device comprises a main body, a first positioning mechanism and a second positioning mechanism are arranged on the two opposite sides of the main body correspondingly, the first positioning mechanism comprises a plurality of first positioning blocks arranged on the side wall of the main body, and the outer side walls of the first positioning blocks jointly form a first positioning side face; the second positioning mechanism is movably connected with the side wall of the main body, and the second positioning mechanism can move upwards in an arc shape to reduce the distance between the first positioning side face and the second positioning side face. The utility model has the beneficial effects that the device can be easily detached from a workpiece, the friction force is small, the abrasion condition is avoided, the positioning size can be adjusted, and the application range is wide.

Description

Technical Field

[0001] The utility model relates to the technical field of welding tooling, in particular to a long ear plate welding positioning device. Background Art

[0002] The main purpose of the workpiece positioning device is to keep the position of the workpiece fixed during the welding process, so as to ensure the dimensional accuracy of the workpiece after welding. For the positioning welding of the ear plate, the positioning device used in the existing production technology is generally a single-sided positioning device, including positioning blocks, adjustment gaskets, fixing seats and other components. During the welding production process, the ear plate is close to the positioning block and fixed by spot welding. The welded workpiece moves to one side and deviates from the positioning block by a certain distance, so that the workpiece can be removed from the welding tooling to complete the welding production process.

[0003] This structure is generally used for welding relatively simple structural parts, and has low adaptability to relatively complex structural parts. For example, if the size between two long ear plates on the workpiece needs to be positioned for welding, the existing technology uses two traditional single-sided positioning devices for positioning, such as Figure 7 and Figure 8 As shown, after the two long ear plates are positioned and welded, the workpiece needs to be lifted and transported. Since the long ear plate and the side of the single-sided positioning device are fitted together, and the lifting process cannot guarantee absolute verticality, it will be difficult to lift upward, and the workpiece cannot be easily separated from the positioning device. When lifting upward, both the long ear plate and the side of the single-sided positioning device will be worn. The single-sided positioning device will have dimensional errors due to long-term wear. The wear of the long ear plate cannot guarantee product quality. In addition, the positioning size of the single-sided positioning device is often fixed. When the positioning size of the workpiece changes, the positioning device of the corresponding size can only be re-selected, and the adaptability range is poor.

[0004] Therefore, a long ear plate welding positioning device is urgently needed to solve the above technical problems. Utility Model Content

[0005] The utility model aims to overcome the problems in the background technology and provide a long ear plate welding positioning device which is convenient to separate from a workpiece and has a wide adaptability.

[0006] In order to achieve the above-mentioned utility model object, the utility model adopts a technical solution specifically as follows: a long ear plate welding positioning device, comprising a main body, a first positioning mechanism and a second positioning mechanism are respectively arranged on opposite sides of the main body, the first positioning mechanism comprises a plurality of first positioning blocks arranged on the side wall of the main body, and the outer side walls of the plurality of first positioning blocks jointly form a first positioning side surface;

[0007] The second positioning mechanism is movably connected to the side wall of the main body, and the second positioning mechanism includes a plurality of second positioning blocks, and the outer side walls of the plurality of second positioning blocks together form a second positioning side surface. When the workpiece is removed and lifted upward, the second positioning mechanism can move upward in an arc to reduce the distance between the first positioning side surface and the second positioning side surface, that is, the size of both sides of the positioning device is reduced.

[0008] Furthermore, the second positioning mechanism includes a fixing plate, a gap is left between the fixing plate and the main body, a connecting plate is arranged between the fixing plate and the main body, the fixing plate and the main body are rotatably connected to both ends of the connecting plate respectively through a pin shaft, and the second positioning block is detachably arranged on a side of the fixing plate away from the main body. After the second positioning mechanism moves upward, the fixing plate can be fitted against the side wall of the main body. When the hoisted workpiece moves upward, the workpiece can drive the second positioning block to move upward through friction, and the second positioning block drives the fixing plate to move upward, and the fixing plate drives one end of the connecting plate to move upward. Since one end of the connecting plate is rotatably connected to the main body, the fixing plate drives one end of the connecting plate to swing and fold toward the side wall of the main body. After folding, the distance between the first positioning side surface and the second positioning side surface will be reduced, and the reserved gap will be compressed, so that there will be excess space between the long ear plate and the positioning side surface, thereby facilitating the lifting of the workpiece.

[0009] Furthermore, a plurality of second positioning blocks are longitudinally arranged on the side wall of each fixing plate.

[0010] Furthermore, the first positioning block and the main body, as well as the second positioning block and the fixing plate are detachably connected via bolts.

[0011] Furthermore, a plurality of adjustment washers sleeved on the bolts are respectively arranged between the first positioning block and the main body, and between the second positioning block and the fixed plate. By increasing or decreasing the number of the adjustment washers, the distance between the first positioning side and the second positioning side can be adjusted, that is, the positioning size of the positioning device can be adjusted, so that the positioning device can meet more positioning requirements of different sizes and have a wider range of adaptability.

[0012] Furthermore, a base plate is arranged at the bottom of the main body, and the main body is installed on the working platform through the base plate, which is used for assembly and positioning of the equipment. A support block is arranged on the base plate, and a limit block is arranged on the support block. The limit block is located below the fixed plate, and the limit block is used to support the fixed plate to limit the lowest descending position of the fixed plate. The swing of the connecting plate has two extreme positions. When the connecting plate is perpendicular to the side of the main body, the fixed plate contacts the limit plate. When the connecting plate swings upward to the extreme position, the fixed plate is separated from the limit plate and fits with the side of the main body.

[0013] Furthermore, the first positioning side surface, the second positioning side surface and the main body are parallel to each other.

[0014] Furthermore, when the lower end of the fixing plate contacts the limit block, the line connecting the two pins is perpendicular to the first positioning side surface or the second positioning side surface, that is, the downward limit position of the connecting plate.

[0015] Furthermore, a plurality of mounting holes are arranged on the bottom plate, the bottom plate is mounted on the working platform through the mounting holes, the workpiece is placed on the working platform, and positioning welding is performed through the positioning device.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. After the positioning welding is completed, the workpiece is directly lifted upward, and the second positioning block moves upward due to the friction force of the long ear plate. The second positioning block drives one end of the fixed plate and the connecting plate to move upward, and the connecting plate swings upward. Then the workpiece will shake slightly during the upward movement, and the second positioning block will be subjected to the lateral pressure of the long ear plate, which can make the fixed plate fit with the side wall of the body. In this process, the distance between the first positioning side surface and the second positioning side surface will become smaller, and there will be extra space between the long ear plate and the positioning side surface. Therefore, the long ear plate can be easily lifted out from the positioning device, thereby achieving the purpose of easy disassembly of the tooling and the positioning device. Compared with the existing two single-sided positioning devices, the positioning device is easy to disassemble and can be directly lifted upward, and the friction force between the long ear plate and the positioning device is greatly reduced, and no wear will be caused to the long ear plate and the positioning device. While ensuring product quality, the positioning device can also avoid dimensional errors due to long-term wear.

[0018] 2. The first positioning block and the body, as well as the second positioning block and the fixed plate are installed by bolts. Multiple adjustment gaskets are sleeved on the bolts. The positioning size can be adjusted by changing the number of adjustment gaskets, so as to adapt to positioning requirements of different sizes and enhance the applicability of the positioning device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0020] Figure 1 The overall structure of the utility model is shown in FIG. Figure 1 .

[0021] Figure 2 The overall structure of the utility model is shown in FIG. Figure 2 .

[0022] Figure 3 It is a side view schematic diagram of the utility model.

[0023] Figure 4It is a side view schematic diagram after one end of the connecting plate of the utility model swings upward in an arc shape.

[0024] Figure 5 This is a schematic diagram of the working state of the utility model. Figure 1 .

[0025] Figure 6 This is a schematic diagram of the working state of the utility model. Figure 2 .

[0026] Figure 7 It is a schematic diagram of the structure of two single-sided positioning devices in the prior art.

[0027] Figure 8 It is a schematic diagram of two single-sided positioning devices in the prior art in working state.

[0028] Among them, the figure markings are: 1, main body; 2, first positioning block; 3, second positioning block; 4, fixing plate; 5, connecting plate; 6, pin shaft; 7, bolt; 8, bottom plate; 9, supporting block; 10, limiting block; 11, mounting hole. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. Of course, the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0030] Example: Figure 1-Figure 6 As shown, this embodiment provides a long ear plate welding positioning device, including a main body 1, and a first positioning mechanism and a second positioning mechanism are respectively arranged on opposite sides of the main body 1, the first positioning mechanism includes a plurality of first positioning blocks 2 arranged on the side wall of the main body 1, and the outer side walls of the plurality of first positioning blocks 2 jointly form a first positioning side; the second positioning mechanism is movably connected to the side wall of the main body 1, the second positioning mechanism includes a plurality of second positioning blocks 3, and the outer side walls of the plurality of second positioning blocks 3 jointly form a second positioning side, when the workpiece is removed and lifted upward, the second positioning mechanism can perform an arc movement upward to reduce the distance between the first positioning side and the second positioning side, that is, the size of both sides of the positioning device is reduced.

[0031] The second positioning mechanism includes a fixing plate 4, a gap is left between the fixing plate 4 and the main body 1, a connecting plate 5 is arranged between the fixing plate 4 and the main body 1, the fixing plate 4 and the main body 1 are rotatably connected with both ends of the connecting plate 5 respectively through a pin 6, and the second positioning block 3 is detachably arranged on the side of the fixing plate 4 away from the main body 1. After the second positioning mechanism moves upward, the fixing plate 4 can be fitted against the side wall of the main body 1. When the hoisted workpiece moves upward, the workpiece can drive the second positioning block 3 to move upward through friction, and the second positioning block 3 drives the fixing plate 4 to move upward, and the fixing plate 4 drives one end of the connecting plate 5 to move upward. Since one end of the connecting plate 5 is rotatably connected to the main body 1, the fixing plate 4 drives one end of the connecting plate 5 to swing toward the side wall of the main body 1 and fold. After folding, the first positioning side and the second positioning side can be folded. The distance between the two positioning side surfaces will be reduced, and the reserved gap will be compressed, so that there is enough shaking space between the long ear plate and the positioning side surface, which makes it convenient to lift the workpiece. A plurality of second positioning blocks 3 are longitudinally arranged on the side wall of each fixed plate 4, and the first positioning block 2 and the main body 1, as well as the second positioning block 3 and the fixed plate 4 are detachably connected by bolts 7; a plurality of adjustment gaskets sleeved on the bolts 7 are respectively arranged between the first positioning block 2 and the main body 1, and between the second positioning block 3 and the fixed plate 4. By increasing or decreasing the number of adjustment gaskets, the distance between the first positioning side surface and the second positioning side surface can be adjusted, that is, the positioning size of the positioning device can be adjusted, so that the positioning device can meet the positioning requirements of more different sizes, so that the positioning device has a wider range of adaptability.

[0032] A bottom plate 8 is arranged at the bottom of the main body 1, and the main body 1 is mounted on the working platform through the bottom plate 8 for assembling and positioning the equipment. A supporting block 9 is arranged on the bottom plate 8, and a limiting block 10 is arranged on the supporting block 9. The limiting block 10 is located below the fixed plate 4 and is used to support the fixed plate 4 to limit the lowest descending position of the fixed plate 4. The swing of the connecting plate 5 has two extreme positions. When the connecting plate 5 is perpendicular to the side of the main body 1, the fixed plate 4 contacts the limiting plate 10. When the connecting plate 5 swings upward to the extreme position, the fixed plate 4 is separated from the limiting plate 10 and fits with the side of the main body 1; a plurality of mounting holes 11 are arranged on the bottom plate 8, and the bottom plate 8 is mounted on the working platform through the mounting holes. The workpiece is placed on the working platform and is positioned and welded by the positioning device; the first positioning side surface, the second positioning side surface and the main body 1 are parallel to each other. When the lower end of the fixed plate 4 contacts the limiting block 10, the connecting line of the two pin shafts 6 is perpendicular to the first positioning side surface or the second positioning side surface, that is, the downward extreme position of the connecting plate 5.

[0033] When in use, after the positioning welding is completed, the workpiece is lifted upward, and the two long ear plates move upward. The long ear plates prompt the second positioning block 3 to drive the fixed plate 4 to move upward, and one end of the connecting plate 5 swings upward in an arc. The distance between the first positioning side surface and the second positioning side surface is reduced, so that extra space can appear between the long ear plates and the corresponding positioning side surfaces, and the friction between the long ear plates and the corresponding positioning side surfaces is greatly reduced, so that the long ear plates can be easily removed from the positioning device.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A long ear plate welding positioning device, characterized in that: It comprises a main body (1), wherein a first positioning mechanism and a second positioning mechanism are respectively arranged on two opposite sides of the main body (1), wherein the first positioning mechanism comprises a plurality of first positioning blocks (2) arranged on the side wall of the main body (1), and the outer side walls of the plurality of first positioning blocks (2) jointly form a first positioning side surface; The second positioning mechanism is movably connected to the side wall of the main body (1), and comprises a plurality of second positioning blocks (3). The outer side walls of the plurality of second positioning blocks (3) together form a second positioning side surface. When the workpiece is removed and lifted upward, the second positioning mechanism can move upward in an arc to reduce the distance between the first positioning side surface and the second positioning side surface.

2. A long ear plate welding positioning device according to claim 1, characterized in that: The second positioning mechanism comprises a fixing plate (4), a gap being left between the fixing plate (4) and the main body (1), a connecting plate (5) being arranged between the fixing plate (4) and the main body (1), the fixing plate (4) and the main body (1) being rotatably connected at both ends of the connecting plate (5) via a pin shaft (6), the second positioning block (3) being detachably arranged on a side of the fixing plate (4) away from the main body (1), and after the second positioning mechanism moves upward, the fixing plate (4) can be fitted against a side wall of the main body (1).

3. A long ear plate welding positioning device according to claim 2, characterized in that: A plurality of second positioning blocks (3) are longitudinally arranged on the side wall of each fixing plate (4).

4. The long ear plate welding positioning device according to claim 2, characterized in that: The first positioning block (2) and the main body (1), as well as the second positioning block (3) and the fixing plate (4) are detachably connected via bolts (7).

5. The long ear plate welding positioning device according to claim 4, characterized in that: A plurality of adjustment washers sleeved on the bolts (7) are respectively arranged between the first positioning block (2) and the main body (1), and between the second positioning block (3) and the fixing plate (4).

6. The long ear plate welding positioning device according to claim 2, characterized in that: A bottom plate (8) is arranged at the bottom of the main body (1), a support block (9) is arranged on the bottom plate (8), a limit block (10) is arranged on the support block (9), the limit block (10) is located below the fixed plate (4), and the limit block (10) is used to support the fixed plate (4) to limit the lowest descending position of the fixed plate (4).

7. The long ear plate welding positioning device according to claim 6, characterized in that: The first positioning side surface, the second positioning side surface and the main body (1) are parallel to each other.

8. The long ear plate welding positioning device according to claim 7, characterized in that: When the lower end of the fixing plate (4) contacts the limiting block (10), the connecting line of the two pin shafts (6) is perpendicular to the first positioning side surface or the second positioning side surface.

9. The long ear plate welding positioning device according to claim 6, characterized in that: A plurality of mounting holes (11) are provided on the bottom plate (8).

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