JPH0593751U - Chamfering device for pipe end face - Google Patents

Abstract

(57) [Summary] [Purpose] Not only a pipe cut at a right angle to the axis but also an end face of a pipe 40 cut obliquely is brought into contact with the outer peripheral surface of the wire buff 17 to uniformly grind it. [Structure] The outer peripheral surface of the wire buff 17 is rotated at high speed by rotation of a main shaft 10 driven by a first motor, and a cylindrical outer shaft 21 driven by a second motor is rotatably provided on the outer periphery of the main shaft 10. By rotating the outer shaft 21, the wire buff 17 is integrally rotated about the axis extension line of the outer shaft 21.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a chamfering device for a pipe end face used for polishing the end face of a pipe.

[0002]

[Prior Art]

 Conventionally, when a pipe such as a steel pipe is cut into a predetermined size, a chamfering device using a wire buff is used to remove and polish burrs generated on the end face of the pipe, which is the cut surface. ing. As shown in FIG. 4, such a chamfering device rotates the outer peripheral surface of a wire buff (1) formed in an annular shape with a predetermined thickness at a high speed so that the end surface of a pipe (2), which is a material to be polished, becomes the outer peripheral surface. It is brought into contact with and polished.

[0003]

[Problems to be solved by the device]

 However, in such a chamfering device, the outer peripheral surface of the wire buff (1) rotates at a high speed in one direction, so that the end surface of the pipe (2) is in a polishing state along that direction, and the directionality of the polishing occurs and the rotation direction is changed. There is a drawback that burr remains. Therefore, the chamfering work is performed by rotating the pipe (2) around the axis while contacting the end surface with the outer peripheral surface of the wire buff (1). However, the end face of the pipe (2) cut at a right angle to the axis can be polished by this method, but in the case of a pipe cut obliquely to the axis, the wire buff (1) It is difficult to rotate the pipe while the end face is opposed to the outer peripheral face and abuts uniformly. Therefore, it has not been possible to adapt to pipes that are cut at various angles depending on the application.

The present invention aims to solve the above problems by providing a chamfering device for a pipe end face having a new structure, and is suitable for a pipe cut at various angles with respect to an axis. However, it is an object of the present invention to provide a pipe end surface chamfering device capable of uniformly polishing the cut end surface of the pipe.

[0005]

[Means for Solving the Problems]

 In order to achieve these objects, a pipe end surface chamfering device according to the present invention interlocks a driven shaft with a main shaft driven by a first motor through a bevel gear in a gear housing, thereby enabling the gear housing to be installed. Arms with buff mounting members on both sides and connecting wire buffs through the center of the ring are attached to the front position of the buff mounting member with both ends rotatably supported, and the mounting shaft is driven. Interlock with the axis. Then, a cylindrical outer shaft driven by the second motor is rotatably provided on the outer periphery of the main shaft, and a gear housing is connected to the front end of the outer shaft. The wire buff is configured to rotate around the extension line. Examples of the drawings will be specifically described below.

[0006]

【Example】

 FIG. 1 shows an essential part of an embodiment of the present invention, and FIGS. 2 and 3 show the entire apparatus. In the embodiment, a main shaft (10) having a long axis is connected to a bevel gear (12) in a gear housing (11) at a front end, and a driven shaft (14) meshing with the bevel gear (13) is connected to the bevel gear (13). The driven shaft (14) is interlocked with the main shaft (10) via the bevel gears (12) and (13) to rotate. Buff attachment members (15) are provided on both sides of the gear housing (11) in the shape of an arm, and an attachment shaft (16) rotatably supports both ends at the front position of the buff attachment member (15). An annular wire buff (17) having a predetermined thickness is connected to a mounting shaft (16) penetrating the center of the ring. The driven shaft (14) of the pulley (18) provided on the outer surface of one of the buff mounting members (15) is connected at the outer end, and the pulley (19) also provided on the outer surface of the buff mounting member (15) has the mounting shaft (16) at one end. A belt (20) is connected to both pulleys (18) and (19), and a mounting shaft (16) is configured to rotate in association with a driven shaft (14). On the other hand, a cylindrical outer shaft (21) is rotatably provided on the outer periphery of the main shaft (10), and the front end of the outer shaft (21) is connected to the rear surface of the gear housing (11). Then, when the outer shaft (21) rotates, the gear housing (11), the buff mounting member (15), and the wire buff (17) are integrally formed around the extension line of the outer shaft (21). It is configured to rotate.

Two motors (not shown) for driving the main shaft (10) and the outer shaft (21) are installed in the main body (30), and the main shaft (10) has a pulley (22) connected to its rear end. ) Is driven by the first motor by winding the belt (23), and the outer shaft (21) is driven by the second motor by winding the chain (25) around the sprocket (24) connected to the intermediate portion. It The outer shaft (21), through which the main shaft (10) penetrates, is rotatably mounted on the main body (30) by a pair of front and rear bearing members (26) and covered with a cover (27). The wire buff (17) is covered with an opening / closing cover (28), and a window (29) is opened on the front surface of the opening / closing cover (28) so as to face the outer peripheral surface of the wire buff (17). On the front surface of the main body (30), a working table (31) is extended and fixed, and a moving table (33) which slides on the working table (31) by the operation of the air cylinder (32) is provided. The movable table (33) is provided with a clamp device (34) adapted to the pipe to be polished, and the clamp device (34) grips the pipe and attaches the pipe to the movable table (33). An operation control panel (35) is erected on the side surface of the main body (30) at a height that makes it easy to operate.

The operation of the pipe end surface chamfering device configured as described above will be described. When polishing a pipe (40) cut at an angle to the axis, use an appropriate clamping device (34) so that the end face of the surface to be polished faces the outer peripheral surface of the wire buff (17). , And attach the pipe (40) to the moving table (33). When the first motor is operated, the main shaft (10) rotates, the driven shaft (14) interlocks, the mounting shaft (16) starts, and the outer peripheral surface of the wire buff (17) rotates at high speed. On the other hand, when the second motor is actuated, the outer shaft (21) rotates, and the wire buff (17) rotates about the axis extension line of the outer shaft (21), that is, the rolling motion is started. Then, by moving the air cylinder (32), the movable table (33) is moved forward, the end of the pipe (40) is inserted into the opening / closing cover (28) through the window (29), and the outer peripheral surface of the wire buff (17) is inserted. Then, the end faces are brought into contact with each other with a predetermined contact pressure to perform polishing. Then, the outer peripheral surface of the wire buff (17) rotates at a high speed, the wire buff (17) itself rolls, and the end surface of the pipe (40) is uniformly polished. After the polishing is completed, the movable table (33) is withdrawn, the clamp device (34) sequentially holds the pipes (40), and the polishing work is performed in the same process. The above-mentioned operations of the first motor and the second motor, and the movement of the moving table (33) to move forward and backward are performed by the timer in accordance with the conditions such as the material of the pipe (40), the wall thickness, and the amount of deburring. It is configured so that it can be operated automatically by sequence control only by setting the start switch, or can be switched between automatic and manual, and each individual operation can be controlled by manual operation and work by manual operation. Also, when polishing a pipe cut at a right angle to the axis, an appropriate clamping device is used to hold the pipe with the end face facing the outer peripheral surface of the wire buff (17), and to attach it to the moving table (33). It is possible to attach a pipe and perform polishing work in the same process.

[0009]

[Effect of the device]

 The characteristic effects of this invention are as follows. The outer peripheral surface of the wire buff (17) rotates at a high speed, and the wire buff (17) itself rolls, so that the end surface of the pipe is simply brought into contact with the outer peripheral surface as in the conventional case, and no directionality occurs. It is evenly polished and has a beautiful finish without leaving burrs. Then, not only the pipe cut at a right angle to the shaft center, but also the pipe (40) cut obliquely to the shaft center can be easily polished by the same work and cut at various angles depending on the application. Is adapted to. Further, the rolling motion of the wire buff (17) expands the area that can be polished, and has a new function such that both end faces of a U-shaped pipe can be polished at one time.

Further, a moving table (33) that slides on the work table (31) is provided, and a pipe is attached to the moving table (33) by a clamp device (34) so that polishing work can be continuously performed. It has a practical value such that the polishing rate can be improved and the work efficiency can be significantly improved at the same time.

[Brief description of drawings]

FIG. 1 is a plan view in which a part of an essential part of an embodiment of the present invention is cut away.

FIG. 2 is a side view of the same apparatus.

FIG. 3 is a front view of the same apparatus as a whole.

FIG. 4 is an explanatory diagram of a conventional example.

[Explanation of symbols]

 10 main shaft 11 gear housing 12 bevel gear 13 bevel gear 14 driven shaft 15 buff mounting member 16 mounting shaft 17 wire buff 21 outer shaft 31 working table 33 moving table 34 clamp device

Claims (3)

[Scope of utility model registration request] 1. A chamfering device for an end face of a pipe, wherein an outer peripheral face of an annular wire buff (17) having a predetermined thickness is rotated at a high speed to bring the end face of the pipe into contact with the outer peripheral face for polishing. The driven shaft (14) is interlocked with the main shaft (10) driven by one motor via the bevel gears (12) and (13) in the gear housing (11), and both side surfaces of the gear housing (11) are linked. The buff attachment member (15) is provided in the shape of an arm, and the attachment shaft (16), which penetrates the center of the ring and is connected to the wire buff (17), has its both ends rotatably positioned in front of the buff attachment member (15). It is supported and mounted, the mounting shaft (16) is interlocked with the driven shaft (14), and the cylindrical outer shaft (21) driven by the second motor is connected to the main shaft (1).
0) is rotatably provided on the outer periphery of the outer shaft (21), and the gear housing (11) is connected to the front end of the outer shaft (21). A chamfering device for the end face of the pipe, which is configured so that the wire buff (17) rotates about its center. 2. A clamp device (34) provided with a movable table (33) that slides on a work table (31), and mounting a pipe on the movable table (33) with its end face facing the outer peripheral surface of the wire buff (17). ) Is provided, the chamfering device of the pipe end surface of Claim 1. 3. The chamfering device of the pipe end surface according to claim 1, wherein the pipe to be polished is a pipe cut at a right angle or an angle with respect to the axis.