Positioning tool for welding grain unloading cylinder

Abstract

The utility model discloses a positioning tool for welding a grain unloading cylinder. The positioning tool is characterized by comprising a roller positioning structure, a bent pipe positioning structure and a connecting frame positioning structure, the roller positioning structure comprises a first frame body and a positioning plate group which is arranged on the first frame body and is used for shaping a roller in a cylindrical state; the bent pipe positioning structure comprises a second frame body and a positioning assembly; the second frame body is used for placing the downward outlet end of the bent pipe, meanwhile, the horizontal inlet end of the bent pipe is in butt joint with the outlet end of the roller, the positioning assembly comprises positioning rods which are arranged on the second frame body and located on the left side and the right side of the bent pipe, and the positioning rods press and position the left half pipe and the right half pipe forming the bent pipe; the connecting frame positioning structure comprises a downward pressing frame and an inner supporting assembly, the inner supporting assembly is arranged on the second frame body and located in the bent pipe to support the inner top wall of the bent pipe, and the downward pressing frame is arranged on the second frame body and meanwhile presses the connecting frame to the top of the bent pipe. According to the utility model, the welding convenience of the grain unloading cylinder can be obviously improved.

Description

Technical Field

[0001] The utility model relates to the field of positioning, in particular to a positioning tool for welding a grain unloading barrel. Background Art

[0002] Grain unloading drum usually refers to a cylindrical device used to unload grain or other granular materials. It is commonly used in agriculture, food processing, chemical industry and other industries to unload grain or other materials from transportation vehicles for further processing or storage.

[0003] like Figure 4 The figure shows a schematic diagram of the structure of the grain unloading barrel 5, which mainly includes a roller 51, a connecting elbow 52 located at the outlet end of the roller 51, and a connecting frame 53 located at the top of the elbow 52, ​​and the three need to be fixed by welding. The roller is made of rectangular iron sheets wound and welded, the elbow is welded from two half-pipes 521, and the connecting frame is composed of a frame 532 and a hanging ball column 531 fixed on the frame. Since the grain unloading barrel is a newly developed product, there is no tooling on the market for fixing the grain unloading barrel for subsequent welding, which makes the welding between the roller, the elbow and the connecting frame more troublesome. Therefore, the market is in urgent need of a tooling that can position the various components of the grain unloading barrel so that the various components can be welded together later. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a positioning tool for welding a grain unloading drum, which can significantly improve the convenience of welding the grain unloading drum.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A positioning tool for grain unloading drum welding, characterized by comprising a drum positioning structure, a bent pipe positioning structure and a connecting frame positioning structure;

[0007] The roller positioning structure comprises a first frame and a positioning plate group arranged on the first frame and positioning the roller in a cylindrical state;

[0008] The bent pipe positioning structure includes a second frame and a positioning assembly; the second frame is for placing the outlet end of the bent pipe facing downward, and at the same time, the horizontal inlet end of the bent pipe is docked with the outlet end of the roller, and the positioning assembly includes positioning rods arranged on the second frame and located on the left and right sides of the bent pipe, and the positioning rods press and position the left and right half pipes forming the bent pipe;

[0009] The connecting frame positioning structure includes a lower pressing frame and an inner supporting assembly. The inner supporting assembly is arranged on the second frame and is located inside the bent pipe to support the inner top wall of the bent pipe. The lower pressing frame is arranged on the second frame and presses the connecting frame down on the top of the bent pipe.

[0010] Preferably, the positioning plate group includes an upper positioning plate and a lower positioning plate;

[0011] The upper positioning plate and the lower positioning plate each have multiple pieces, and are arranged on the first frame along the axial direction of the roller. The lower positioning plate has a lower C-shaped groove with an upward opening for the wound roller to be placed in, and the upper positioning plate has an upper C-shaped groove with a downward opening, which is pressed down on the splicing part on the upper side of the roller.

[0012] Preferably, positioning pins are further provided on the upper positioning plate and the lower positioning plate, and the positioning pins can be inserted into the through holes of the side walls of the drum.

[0013] Preferably, the roller positioning structure further includes an anti-rotation positioning group, and the anti-rotation positioning group includes an anti-rotation positioning block and an anti-rotation displacement driving assembly;

[0014] The anti-rotation positioning block is arranged on the first frame and can slide in the radial direction of the drum;

[0015] The anti-rotation displacement driving assembly is arranged between the first frame and the anti-rotation positioning block, and drives the anti-rotation positioning block to enter and exit the mounting hole located on the side wall of the drum.

[0016] Preferably, the second frame has a positioning platform, and an inner positioning ring and an outer positioning plate are provided on the positioning platform, and a positioning groove of an annular structure is formed between the inner positioning ring and the outer positioning plate, and the outlet end of the bent pipe is embedded and positioned in the positioning groove.

[0017] Preferably, the positioning rod is a screw rod, and the screw rod is threadedly engaged with the second frame.

[0018] Preferably, the inner support assembly includes a plurality of support columns disposed on the second frame, and the support columns are located inside the bent pipe to support the inner top wall of the bent pipe.

[0019] Preferably, the lower pressure frame includes a lower pressure plate and connecting plates located on both sides of the lower pressure plate. The lower pressure plate is connected to the second frame body through two connecting plates. There is a positioning hole on the lower pressure plate. The lower pressure plate is positioned through the positioning hole and pressed down on the ball column on the top of the connecting frame to press the connecting frame against the top wall of the bent pipe.

[0020] The advantages of the utility model are: through the positioning tool, the roller, the bent pipe and the connecting frame in the grain unloading drum can be shaped separately, and the three can be placed and positioned, and then the welding operation can be performed by a welding manipulator or a welding person, which can significantly improve the convenience of the overall welding work of the grain unloading drum. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A three-dimensional diagram of the positioning tool for welding the grain unloading drum provided in this embodiment;

[0022] Figure 2 A three-dimensional view from another perspective of the positioning tool for welding the grain unloading drum provided in this embodiment;

[0023] Figure 3 A schematic diagram of the elbow positioning structure provided in this embodiment;

[0024] Figure 4 This is a schematic diagram of the grain unloading drum provided in this embodiment. DETAILED DESCRIPTION

[0025] Combination Figures 1 to 4 The utility model is further described on the positioning tool for welding the grain unloading drum.

[0026] A positioning tool for welding a grain unloading drum is characterized in that it comprises a drum positioning structure 1, a bent pipe positioning structure 2 and a connecting frame positioning structure.

[0027] The roller positioning structure 1 includes a first frame 11 and a positioning plate group 12 arranged on the first frame 11 and placing the roller 51 in a horizontal cylindrical state. The bent pipe positioning structure 2 includes a second frame 21 and a positioning assembly 24; the second frame 21 is for placing the outlet end of the bent pipe 52 facing downward, and at the same time, the horizontal inlet end of the bent pipe 52 is docked with the outlet end of the roller 51, and the positioning assembly 24 includes a positioning rod 241 arranged on the second frame 21 and located on the left and right sides of the bent pipe 52, and the positioning rod 241 presses and positions the left and right half pipes 521 forming the bent pipe 52. The connecting frame positioning structure includes a lower pressing frame 3 and an inner support assembly 4, and the inner support assembly 4 is arranged on the second frame 21 and located inside the bent pipe 52 to support the inner top wall of the bent pipe 52, and the lower pressing frame 3 is arranged on the second frame 21, and at the same time, the connecting frame 53 is pressed down on the top of the bent pipe 52.

[0028] Specifically, in the structure of the first frame 11, the first frame 11 is composed of a first support frame 112, a support leg 113 and a mounting column 111. The first support frame 112 is composed of a plurality of vertical and horizontal rods.

[0029] The positioning plate group 12 includes an upper positioning plate 122 and a lower positioning plate 121. The upper positioning plate 122 and the lower positioning plate 121 are provided in multiple pieces, and are arranged on the first frame 11 along the axial direction of the roller 51. The lower positioning plate 121 is arranged on the first support frame 112, and has a lower C-shaped groove with an opening facing upward. The roller 51 wound into a cylindrical structure is placed in the lower C-shaped grooves of multiple lower positioning plates 121 at the same time, and the joint seam of the roller 51 is located at the top of the roller 51. The upper positioning plate 122 is installed on the top of the mounting column 111 through a mounting plate, and is located above the roller 51. The upper positioning plate 122 has an upper C-shaped groove 1221 with an opening facing downward. The upper C-shaped groove 1221 on the upper positioning plate 122 corresponds to the joint part of the roller 51, and is pressed down on the top of the roller 51, and cooperates with the lower C-shaped groove on the lower positioning plate 121 to keep the roller 51 in a cylindrical structure.

[0030] The two ends of the mounting plate are fixed to the top of the mounting column 111 by bolts and corresponding nuts. That is, there are vertical bolts on the top of the mounting column 111, and there are connecting holes on the two ends of the mounting plate. The connecting holes on the mounting plate are inserted into the bolts from top to bottom, and then the nuts are screwed on to fix the mounting plate, and at the same time, the upper positioning plate 122 is pressed against the roller 51. The mounting structure of the mounting plate and the upper positioning plate 122 from top to bottom can gradually press the roller 51, and the pressing height of the mounting plate and the upper positioning plate 122 can be adjusted according to actual needs to effectively press and position the roller 51.

[0031] In order to improve the stability of the upper positioning plates 122 pressing down on the roller 51, two upper positioning plates 122 are provided on each mounting plate.

[0032] The upper positioning plate 122 and the lower positioning plate 121 are also provided with positioning pins 14, which can be inserted into the through holes of the side wall of the drum 51. The positioning pins 14 are inserted into the lower positioning plate 121 and the drum 51, or the upper positioning plate 122 and the drum 51, which can further shape the drum 51 and avoid the problem that the drum 51 automatically expands under the action of elasticity.

[0033] The roller positioning structure 1 also includes an anti-rotation positioning group 15, and the anti-rotation positioning group 15 includes an anti-rotation positioning block 151 and an anti-rotation displacement driving assembly 152. The anti-rotation positioning block 151 is arranged on the first frame 11 through a guide rail assembly, so that the anti-rotation positioning block 151 can slide in the left and right direction of the roller 51, that is, in a direction perpendicular to the roller 51. The anti-rotation displacement driving assembly 152 is arranged between the first frame 11 and the anti-rotation positioning block 151, and drives the anti-rotation positioning block 151 to enter and exit the mounting hole 511 located on the side wall of the roller 51. When the anti-rotation displacement driving assembly 152 drives the anti-rotation positioning block 151 to fit into the mounting hole 511, it can limit the circumferential position of the roller 51 to prevent the roller 51 from rolling accidentally.

[0034] The structure of the anti-rotation displacement drive assembly 152 includes a threaded rod that is matched on the first support frame 112, and the end of the threaded rod is rotatably connected to the anti-rotation positioning block 151 in the axial direction. Therefore, when the threaded rod rotates, the threaded rod can move axially under the action of the thread matching force, and at the same time drive the anti-rotation positioning block 151 to move.

[0035] In the elbow positioning structure 2, the second frame 21 includes a U-shaped bottom frame 211 and a positioning platform 212 disposed on the bottom frame 211. The positioning platform 212 is provided with an inner positioning ring 26 and an outer positioning plate 22, and a positioning groove 27 of an annular structure is formed between the inner positioning ring 26 and the outer positioning plate 22. The positioning groove 27 is used for the outlet end of the elbow 52 to be embedded and positioned, so as to realize the positioning of the lower port of the elbow 52.

[0036] The positioning rod 241 is a screw, and the screw is threadedly engaged with the second frame 21. Specifically, a plurality of vertical plates 28 are provided on the outer positioning plate 22 of the positioning platform 212 of the second frame 21. The vertical plates 28 are located on the left and right sides of the curved pipe 52. The vertical plates have threaded holes, and the screws are engaged with the threaded holes. Therefore, after the screws are rotated, the screws can move in the left and right directions. When the screws on the left and right sides of the curved pipe 52 move toward each other, they can simultaneously press against the side walls of the two half pipes 521 forming the curved pipe 52, and press the two half pipes 521 toward each other and position them.

[0037] A side pressure plate 25 is connected to the screw rod corresponding to the inlet end of the curved pipe 52, and the side of the side pressure plate 25 facing the curved pipe 52 has a semicircular groove, and the semicircular groove corresponds to the outer semicircular side wall of the half pipe 521. Therefore, after the screw rods connected to the side pressure plates 25 on the left and right sides of the curved pipe 52 drive the side pressure plates 25 to move toward the curved pipe 52, the side pressure plates 25 on the left and right sides of the curved pipe 52 are pressed against the outer side wall of the corresponding half pipe 521 through the semicircular groove, so that when the curved pipe 52 is kept in the spliced ​​state, the inner wall of the inlet end of the curved pipe 52 can be closely attached to the outlet end of the roller 51, which is convenient for welding.

[0038] The inner support assembly 4 includes a plurality of support columns 41 disposed on the positioning platform 212 of the second frame 21. The support columns 41 are located inside the curved pipe 52. The top end shape of the support columns 41 is a contoured structure adapted to the inner wall shape of the curved pipe 52 for supporting the inner top wall of the curved pipe 52.

[0039] The lower pressing frame 3 includes a lower pressing plate 31 and connecting plates 32 located on both sides of the lower pressing plate 31. The two connecting plates 32 are connected to the side walls of the second frame 21 by bolts, so the lower pressing plate 31 is connected to the top of the side walls of the second frame 21 through the two connecting plates 32. A positioning hole is provided at the center of the lower pressing plate 31, and the positioning hole corresponds to the ball column 531 on the connecting frame 53. The lower pressing plate 31 is pressed down on the ball column 531 on the top of the connecting frame 53 through the positioning hole, and the connecting frame 53 is pressed against the top wall of the curved pipe 52. The inner top wall of the curved pipe 52 is supported on the supporting column 41 to form a stable structure.

[0040] During specific welding, the roller positioning structure 1 positions the roller 51 so that the roller 51 remains in a horizontal cylindrical state for welding; the elbow positioning structure 2 positions the elbow 52 formed by the two half-pipes 521 so that the two half-pipes 521 remain in a combined state to form the elbow 52 structure, and at the same time, the inlet end of the elbow 52 is sleeved on the outlet end of the roller 51 for welding; the connecting frame positioning structure positions the connecting frame 53 so that the connecting frame 53 is pressed down on the top of the elbow 52 for welding. Therefore, the positioning tool can position the roller 51, the elbow 52 and the connecting frame 53, so that the operator or the welding manipulator can perform welding operations on the weld of the roller 51 itself, the weld between the roller 51 and the elbow 52, ​​the weld of the elbow 52 itself, and the weld between the elbow 52 and the connecting frame 53.

[0041] Unless otherwise specified, in the present utility model, if there are terms such as "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicating orientation or position relationship, they are based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the orientation or position relationship in the present utility model are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood in conjunction with the drawings and according to specific circumstances.

[0042] Unless otherwise specified and limited, in the present invention, the terms "disposed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A positioning tool for welding a grain unloading drum, characterized by: It includes a roller positioning structure, a bent pipe positioning structure and a connecting frame positioning structure; The roller positioning structure comprises a first frame and a positioning plate group arranged on the first frame and positioning the roller in a cylindrical state; The bent pipe positioning structure includes a second frame and a positioning assembly; the second frame is for placing the outlet end of the bent pipe facing downward, and at the same time, the horizontal inlet end of the bent pipe is docked with the outlet end of the roller, and the positioning assembly includes positioning rods arranged on the second frame and located on the left and right sides of the bent pipe, and the positioning rods press and position the left and right half pipes forming the bent pipe; The connecting frame positioning structure includes a lower pressing frame and an inner supporting assembly. The inner supporting assembly is arranged on the second frame and is located inside the bent pipe to support the inner top wall of the bent pipe. The lower pressing frame is arranged on the second frame and presses the connecting frame down on the top of the bent pipe.

2. The positioning tool for welding a grain unloading drum according to claim 1 is characterized in that: The positioning plate group includes an upper positioning plate and a lower positioning plate; The upper positioning plate and the lower positioning plate each have multiple pieces, and are arranged on the first frame along the axial direction of the roller. The lower positioning plate has a lower C-shaped groove with an upward opening for the wound roller to be placed in, and the upper positioning plate has an upper C-shaped groove with a downward opening, which is pressed down on the splicing part on the upper side of the roller.

3. The positioning tool for welding a grain unloading drum according to claim 2 is characterized in that: Positioning pins are also arranged on the upper positioning plate and the lower positioning plate, and the positioning pins can be inserted into the through holes of the side wall of the drum.

4. The positioning tool for welding a grain unloading drum according to claim 1 is characterized in that: The roller positioning structure also includes an anti-rotation positioning group, which includes an anti-rotation positioning block and an anti-rotation displacement driving component; The anti-rotation positioning block is arranged on the first frame and can slide in the radial direction of the drum; The anti-rotation displacement driving assembly is arranged between the first frame and the anti-rotation positioning block, and drives the anti-rotation positioning block to enter and exit the mounting hole located on the side wall of the drum.

5. The positioning tool for welding a grain unloading drum according to claim 1 is characterized in that: The second frame has a positioning platform, and an inner positioning ring and an outer positioning plate are arranged on the positioning platform. A positioning groove of an annular structure is formed between the inner positioning ring and the outer positioning plate, and the outlet end of the bent pipe is embedded and positioned in the positioning groove.

6. The positioning tool for welding a grain unloading drum according to claim 1 is characterized in that: The positioning rod is a screw rod, and the screw rod is threadably matched on the second frame.

7. The positioning tool for welding a grain unloading drum according to claim 1 is characterized in that: The inner support assembly includes a plurality of support columns arranged on the second frame, and the support columns are located inside the bent pipe to support the inner top wall of the bent pipe.

8. The positioning tool for welding a grain unloading drum according to claim 1 is characterized in that: The lower pressing frame includes a lower pressing plate and connecting plates located on both sides of the lower pressing plate. The lower pressing plate is connected to the second frame body through two connecting plates. There is a positioning hole on the lower pressing plate. The lower pressing plate is positioned through the positioning hole and pressed down on the ball column on the top of the connecting frame to press the connecting frame tightly against the top wall of the bent pipe.

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