Pipe expanding device of motorcycle stand column

Abstract

The utility model provides a pipe expanding device of a motorcycle stand column, and belongs to the technical field of motorcycle accessory manufacturing. The motorcycle stand column pipe expanding machine solves the problem that existing equipment is low in motorcycle stand column pipe expanding efficiency. The pipe expanding device of the motorcycle stand columns comprises a workbench and a pipe expanding column, a female die is arranged on the workbench, the female die is provided with a cavity which is provided with an upward opening and allows a workpiece to be inserted, the workbench is provided with a plurality of stand columns, an installation table is fixedly arranged at the upper ends of the stand columns, and the pipe expanding column is located above the female die and right faces the cavity. A first hydraulic cylinder used for driving the pipe expanding column to move up and down is arranged on the mounting table, and a second hydraulic cylinder used for pushing a workpiece upwards is arranged below the female die. The die is easy to operate and high in production efficiency, and the quality of formed workpieces is better.

Description

TECHNICAL FIELD

[0001] The utility model belongs to motorcycle accessory manufacturing technical field relates to a kind of pipe expanding device of motorcycle stand. BACKGROUND

[0002] Motorcycle stand is a kind of columnar connecting piece for connecting upper and lower connecting plates of motorcycle, such as the connecting column in the light weight high strength motorcycle direction connecting plate disclosed in Chinese patent application (application number: 202323569594.1) is motorcycle stand.

[0003] The existing motorcycle stand structure is basically the same, such as Figure 1 As shown in the figure, its structure is a tubular structure with one end large in diameter and the other end small in diameter. The motorcycle stand is made of steel pipes with the same diameter at both ends by pipe expanding. For example, the metal pipe machining machine tool and its machining method disclosed in Chinese patent application application number: 202411393640.3, the metal pipe machining machine tool includes a machining table, a support seat and a fixing mechanism, the side surface of the support seat is provided with a pipe expanding mechanism, the pipe expanding mechanism includes a base, a support column, a pipe expanding column and an oil groove, the fixing mechanism includes a lower clamp mounted on the top surface of the machining table, the side surface of the lower clamp is provided with an electric push rod, the output end of the electric push rod is provided with an upper clamp, after clamping the workpiece by the upper clamp and the lower clamp, the workpiece is expanded by the pipe expanding mechanism. However, since the clamp uses the upper clamp and the lower clamp to fix the workpiece, and the workpiece is fixed horizontally, the workpiece is prone to be tilted due to gravity during fixing, which affects the straightness of the formed workpiece. Moreover, since the clamp uses a split mechanism, the radial force of the workpiece is large during pipe expanding, so the clamping force of the clamp is extremely high, and the required cost is also high. In addition, the clamp needs to be frequently opened and closed when loading and unloading the workpiece, which also affects the processing efficiency and leads to low production efficiency. SUMMARY

[0004] The utility model aims at the above-mentioned problems existing in the prior art, and provides a pipe expanding device for motorcycle stand, and the technical problem to be solved by the utility model is how to improve the processing efficiency of motorcycle stand.

[0005] The utility model can be realized by the following technical scheme: a pipe expanding device for motorcycle stand, including workbench and pipe expanding column, characterized by, the workbench is equipped with female die, the female die has cavity with opening upward and is inserted for workpiece, the workbench is equipped with a plurality of stand, the upper end of the stand is fixedly provided with mounting table, the pipe expanding column is located above female die and is opposite with cavity, the mounting table is equipped with hydraulic cylinder one for driving pipe expanding column to move up and down, the lower side of female die is equipped with hydraulic cylinder two for pushing workpiece upward.

[0006] The utility model discloses a vertically arranged female die and pipe expanding column above the female die are matched, only need to insert the workpiece part into the cavity of female die, then pipe expanding column moves down and inserts into workpiece, and workpiece is completely pressed into the cavity, and the upper part of workpiece is expanded and the shape that is adapted to the cavity is formed, after pipe expanding, pipe expanding column moves up and resets, and hydraulic cylinder two pushes workpiece upward, and workpiece part is stretched out from the cavity, and it is convenient for staff to take, and the whole process is simple and fast, and the processing efficiency of workpiece is high.

[0007] In the pipe expanding device of motorcycle stand, a counterweight table is further arranged between the workbench and the mounting table, the counterweight table is slidably connected with the stand, the piston rod of the hydraulic cylinder one is fixedly connected with the counterweight table, and the pipe expanding column is fixedly connected with the lower surface of the counterweight table. The arrangement of the counterweight table can greatly increase the pressure on the workpiece during pipe expanding, so that the workpiece is more smoothly formed and has higher efficiency.

[0008] In the pipe expanding device of motorcycle stand, a counterweight table is further arranged between the workbench and the mounting table, the counterweight table is slidably connected with the stand, the piston rod of the hydraulic cylinder one is fixedly connected with the counterweight table, and the pipe expanding column is fixedly connected with the lower surface of the counterweight table. The arrangement of the counterweight table can greatly increase the pressure on the workpiece during pipe expanding, so that the workpiece is more smoothly formed and has higher efficiency.

[0009] In the pipe expanding device of motorcycle stand, a counterweight table is further arranged between the workbench and the mounting table, the counterweight table is slidably connected with the stand, the piston rod of the hydraulic cylinder one is fixedly connected with the counterweight table, and the pipe expanding column is fixedly connected with the lower surface of the counterweight table. The arrangement of the counterweight table can greatly increase the pressure on the workpiece during pipe expanding, so that the workpiece is more smoothly formed and has higher efficiency.

[0010] In the pipe expanding device of motorcycle stand, a counterweight table is further arranged between the workbench and the mounting table, the counterweight table is slidably connected with the stand, the piston rod of the hydraulic cylinder one is fixedly connected with the counterweight table, and the pipe expanding column is fixedly connected with the lower surface of the counterweight table. The arrangement of the counterweight table can greatly increase the pressure on the workpiece during pipe expanding, so that the workpiece is more smoothly formed and has higher efficiency.

[0011] In the pipe expanding device of motorcycle stand, a counterweight table is further arranged between the workbench and the mounting table, the counterweight table is slidably connected with the stand, the piston rod of the hydraulic cylinder one is fixedly connected with the counterweight table, and the pipe expanding column is fixedly connected with the lower surface of the counterweight table. The arrangement of the counterweight table can greatly increase the pressure on the workpiece during pipe expanding, so that the workpiece is more smoothly formed and has higher efficiency.

[0012] Compared with the prior art, the utility model has the following advantages:

[0013] 1. The utility model discloses a vertical structure, and the workpiece is matched with the pipe expanding column arranged above the female die, so that the stress direction of the workpiece is consistent with the gravity, the straightness of the workpiece after forming is better, and the utility model is simple to operate and has higher production efficiency.

[0014] 2. The utility model discloses a back oil structure is set up in the bottom wall of the cavity, avoids the accumulation of lubricating oil in the female die, and the lubricating oil can be reused. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the structural schematic diagram of the utility model;

[0016] Figure 2 It is the structural schematic diagram that female die cooperates with workbench;

[0017] Figure 3 It is Figure 2 The partial close -up view of A part in.

[0018] In the drawing, 1, workbench;1a, mounting hole;11, stand column;12, mounting table;2, female die;2a, cavity;2b, let -out hole;2c, oil collecting groove;2d, oil guide hole;31, expanding pipe column;32, hydraulic cylinder one;33, counterweight table;4, hydraulic cylinder two;5, support disc;51, positioning convex part;52, baffle;6, oil dipper;7, workpiece. DETAILED DESCRIPTION

[0019] The following is the specific embodiment of the utility model and combines the drawings, and the technical scheme of the utility model is further described, but the utility model is not limited to these embodiments.

[0020] An expanding device of motorcycle stand column 11, as Figure 1 Shown, including workbench 1, female die 2 and expanding mechanism, wherein, female die 2 is long strip cylinder, and female die 2 has the cavity 2a of opening upwards in it, the shape of cavity 2a is the shape of workpiece 7 after forming, and workbench 1 is provided with four vertical stand columns 11, four stand columns 11 are distributed in square around female die 2, and the top of stand column 11 is fixedly provided with mounting table 12, and expanding mechanism includes hydraulic cylinder one 32, counterweight table 33 and expanding pipe column 31, hydraulic cylinder one 32 is fixedly set on mounting table 12, and configuration table is slidably connected with four stand columns 11 and is connected with the piston rod of hydraulic cylinder one 32, and expanding pipe column 31 is fixedly connected to the lower surface of counterweight table 33 and is opposite to female die 2 below, so that hydraulic cylinder one 32 can drive expanding pipe column 31 to move downward.

[0021] As Figure 2 , Figure 3As shown, the workbench 1 is provided with a vertically arranged mounting hole 1a, the lower end of the female die 2 is inserted into the mounting hole 1a, the bottom wall of the cavity 2a is provided with a clearance hole 2b communicated with the mounting hole 1a, the mounting hole 1a is further provided with a hydraulic cylinder 4, the hydraulic cylinder 4 is located below the female die 2 and the piston rod of the hydraulic cylinder 4 extends into the cavity 2a through the mounting hole 1a, the end of the piston rod extending into the cavity 2a is fixedly provided with a support disc 5, the support disc 5 is disc-shaped, and the center of the upper surface of the support disc 5 is provided with a positioning convex portion 51 protruding upward, so that after the workpiece 7 is completely embedded into the cavity 2a, the lower end of the workpiece 7 can abut against the support disc 5, and the positioning convex portion 51 is embedded into the center hole of the lower end of the workpiece 7, thereby facilitating the hydraulic cylinder 4 to push out the workpiece 7 from the female die 2 after the workpiece 7 is expanded.

[0022] Further, as shown in Figure 2 、 Figure 3 the workbench 1 is further provided with an oil dipping groove 6, the oil dipping groove 6 is located on one side of the female die 2, the bottom wall of the cavity 2a is further provided with an oil collecting groove 2c, the oil collecting groove 2c is arranged around the clearance hole 2b, and meanwhile, the sidewall of the female die 2 is further provided with an oil guide hole 2d communicated with the oil collecting groove 2c, the oil guide hole 2d is communicated with the oil dipping groove 6. In order to make the workpiece 7 expand more smoothly, it is necessary to brush a layer of lubricating oil on the workpiece 7, the setting of the oil dipping groove 6 facilitates the worker to brush oil on the workpiece 7, and the setting of the oil collecting groove 2c can make the excess lubricating oil on the workpiece 7 return to the oil dipping groove 6 from the female die 2 under the action of gravity, thereby improving the reuse rate of the lubricating oil.

[0023] Further, in the embodiment, the lower surface of the support disc 5 is provided with a downward protruding and circumferentially arranged stopper 52, the stopper 52 is located above the oil collecting groove 2c, so that when the lubricating oil flows downward along the workpiece 7 and reaches the support disc 5, the lubricating oil will be collected into the oil collecting groove 2c along the edge of the support disc 5, thereby avoiding the lubricating oil flowing to the hydraulic cylinder 4 through the clearance hole 2b, and making the mounting hole 1a more tidy.

[0024] The working process of the utility model is as follows: firstly, the expanding column 31 moves upward, the workpiece 7 brushed with lubricating oil is partially inserted into the cavity 2a of the female die 2, then the expanding column 31 moves downward, the front end of the expanding column 31 is inserted into the center hole of the upper end of the workpiece 7, then the workpiece 7 is completely pressed into the cavity 2a, the upper end of the workpiece 7 is expanded and abuts against the inner wall of the cavity 2a, after the expanding is completed, the expanding column 31 moves upward again, the hydraulic cylinder 4 below the female die 2 pushes the workpiece 7 upward, so that the workpiece 7 is demolded and partially extends out of the cavity 2a, thereby facilitating the worker to take out the workpiece 7, and the whole process is simple and efficient.

[0025] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art of the present application can make various modifications or supplements to the described specific embodiments or replace them with similar ways, but will not deviate from the spirit of the present application or exceed the scope defined by the appended claims.

[0026] Although the terms workbench 1, column 11, mounting table 12, die 2, tube expander 31, counterweight table 33, etc. are used more frequently herein, the possibility of using other terms is not excluded. The use of these terms is only for the convenience of describing and explaining the essence of the present application; any additional limitation by interpreting them is contrary to the spirit of the present application.

Claims

1. A tube expanding device for a motorcycle stand (11) comprising a worktable (1) and a tube expanding column (31), characterized in that, The workbench (1) is provided with a female die (2), the female die (2) has a cavity (2a) with an upward opening and for inserting a workpiece (7), the workbench (1) is provided with a plurality of columns (11), the upper end of the column (11) is fixedly provided with a mounting table (12), the pipe expanding column (31) is located above the female die (2) and opposite to the cavity (2a), the mounting table (12) is provided with a hydraulic cylinder (32) for driving the pipe expanding column (31) to move up and down, the lower side of the female die (2) is provided with a hydraulic cylinder (4) for pushing the workpiece (7) upward.

2. A device for expanding a tubular column (11) of a motorcycle according to claim 1, characterized in that, The workbench (1) and the mounting table (12) are further provided with a counterweight table (33), the counterweight table (33) is in sliding connection with the column (11), the piston rod of the hydraulic cylinder (32) is fixedly connected with the counterweight table (33), and the pipe expanding column (31) is fixedly connected to the lower surface of the counterweight table (33).

3. A device for expanding a column (11) of a motorcycle according to claim 1 or 2, characterized in that, The bottom wall of the cavity (2a) is provided with a clearance hole (2b), the piston rod of the hydraulic cylinder (4) passes through the clearance hole (2b) and extends into the cavity (2a), and one end of the piston rod extending into the cavity (2a) is fixedly provided with a support disc (5) for abutting against the workpiece (7).

4. A device for expanding a tubular column (11) of a motorcycle according to claim 3, characterized in that The bottom wall of the cavity (2a) is provided with an oil collecting groove (2c) surrounding the clearance hole (2b), and the side wall of the female die (2) is further provided with an oil guide hole (2d) in communication with the oil collecting groove (2c).

5. A device for expanding a tubular column (11) of a motorcycle according to claim 4, characterized in that, One side of the female die (2) is further provided with an oil dipping groove (6), and the oil dipping groove (6) is in communication with the oil guide hole (2d).

6. A device for expanding a column (11) of a motorcycle according to claim 4 or 5, characterized in that, The center of the upper surface of the support disc (5) has a positioning convex part (51) protruding upward, and the edge of the lower surface of the support disc (5) has a blocking edge (52) protruding downward and arranged circumferentially along the support disc (5), and the blocking edge (52) is located above the oil collecting groove (2c).

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