JPH0211363B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention is directed to removing side burrs generated on the outer surface of a rod-shaped object during the assembling process of the end of a drill pipe for oil drilling, etc., on a cutter and the vicinity of the cutter. This invention relates to a device that cuts and removes a bar-shaped object while tracing the surface thereof using a disposed tracing device.

(Prior Art) In the past, burrs on the outer surface of a rod-shaped object generated from the mold mating surface during the assembling process were manually removed using a grinder.

(Problems to be Solved by the Invention) The conventional burr removal method described above has problems such as a poor working environment due to the generation of dust and noise, low processing capacity, and unstable quality. Therefore, there is a strong demand for a device that uses a cutter as a means of removing burrs and that automatically provides high quality and high throughput.

(Means for Solving the Problems) The present invention advantageously solves these problems, and its gist is to provide a movable table 16 that moves along the longitudinal axis of the rod-shaped object 1. An opening/closing lever 22 that opens and closes toward the circumferential surface of the rod-shaped object 1 is disposed on the movable table 16, and a drive shaft 4 is rotatably attached to the tip of the opening/closing lever 22 via a support member. A tracing device consisting of a cutter 2, a small-diameter eccentric boss 9 with a lever, a large-diameter eccentric boss 10, a tracing roller 3, and a guide boss 15 is disposed, and the lever of the small-diameter eccentric boss 9 with a lever is connected to the drive device. This is an apparatus for cutting burrs on the surface of a rod-shaped object.

The present invention will be explained in detail below with reference to the drawings. 1st
In Figures 1 to 4, a movable table 16 that moves along the rod-like object 1 is provided, and an opening/closing lever 22 having an opening/closing center on the longitudinal axis of the rod-like object 1 is disposed on the movable table 16.

○B A support member such as a casing 19 in which the drive shaft 4 is inserted is attached to the tip of the opening/closing lever 22, a cutter 2 is attached to the end of the drive shaft 4, and a small diameter eccentric boss 9 with a lever is installed near the cutter 2. A tracing device is provided which includes a large-diameter eccentric boss 10 and a guide boss 15 on which a tracing roller 3 is disposed.

C. The lever portions of the small diameter eccentric bosses 9 with levers attached to the tips of the opening/closing levers 22 are connected to a link device, and the link device is connected to the sector gear 17 fixed to the movable table 16.

(Function) By closing the opening/closing lever 22, the profiling roller 3 is brought into contact with the surface of the rod-shaped object 1, and at the same time, the opening/closing lever 22 corresponding to the outer diameter dimension of the rod-shaped object 1 is moved.
Small diameter eccentric boss with lever 9
It is characterized by automatically adjusting the relative relationship between the cutter 2 and the tracing roller 3 (as a result, the amount of cut) by making use of the slight relative rotation of the rollers, and in this state, the rotational drive shaft 4 is driven and these devices are operated. The side burrs of the bar-shaped object are cut and removed while adjusting the relative relationship between the cutter 2 and tracing roller 3 while automatically responding to the dimensional change of the bar-shaped object 1 by retracting the moving table 16 on which it is placed.

(Example) Examples of the present invention will be described below based on FIGS. 1 to 4. The apparatus according to the embodiment of the present invention consists of a profiling device, an opening/closing lever, a moving table, etc. Two sets of profiling devices are installed near the rod-shaped object 1, and include a cutter 2, a profiling roller 3, a drive shaft 4, a small-diameter eccentric boss with a lever 9, It is constructed from the large-diameter eccentric boss 10 and other parts as shown.

The cutter 2 is fixed to the tip of a drive shaft 4 with a bolt, and the other end and middle part of the drive shaft 4 are supported by a bearing 5 and connected to a hydraulic motor 7 via a coupling 6, for example.
is connected to and drives the cutter 2.

The rod-shaped object 1 processed by this device has a shape consisting of a main tube part 1a and a set part 1b as shown in FIGS. The result will be as shown in Figure 1b. In the figure, x indicates a burr.

Here, if the roller 3 and cutter 2 are brought into contact with each other by following the outer surface of the rod-shaped object on the small diameter part in Figure 1 c, and the rollers are brought into contact with the outer surface of the rod-shaped object on the large diameter side, the blade 2 will be brought into contact with the roller 3 as shown in Figure 1 d. A gap l occurs between the outer surface of the rod-shaped object 1 and the cutter 2 is left uncut on the outer surface of the rod-shaped object 1 after cutting, as shown in attached Figure 1 e.
It is necessary to make the center of the profiling roller 3 eccentric to the center of the profiling roller 3.

A mechanism for adjusting eccentricity between the center of the cutter 2 and the center of the tracing roller 3 to solve the above-mentioned problems will be explained with reference to FIGS. 3 and 4.

On the 4th circumference of the drive shaft, a small diameter eccentric boss 9 with a lever and a large diameter eccentric boss 1 with almost the same amount of eccentricity and opposite eccentric directions are installed.
0 through the bearing 13, and the large diameter eccentric boss 10 is attached to the bearing cover 11.
A guide boss 15 is supported by a bracket 12 via a large-diameter eccentric boss 10 and has a tracing roller 3 rotatably disposed around the large-diameter eccentric boss 10 via a bearing 14.

On the other hand, a sector gear 17 having a pitch circle centered on the opening/closing center of the opening/closing lever 22 is fixed to the lower part of the moving table 16, and a lever attached to the sector gear 17 is supported by a bracket on the casing 19 for supporting the drive shaft 4. Engage pinion 18,
Since the lever end of the small diameter eccentric boss 9 with lever and the lever end of the pinion with lever 18 are connected by a pin 20 via a connecting rod 21, when the cutter 2 disposed on the opening/closing lever 22 is opened, the lever end is connected to the lever end of the small diameter eccentric boss 9 with lever. The pinion 18 is rotated by the sector gear 17 and the connecting rod 2
When the small-diameter eccentric boss 9 with a lever is tilted through the lever 1, the center of the profiling roller 3 becomes eccentric with respect to the center of the cutter 2. Therefore, when the profiling roller 3 is pressed against the surface of the bar 1, the cutter will move regardless of the outside diameter of the bar. The gap between the outer diameter 2 and the surface of the rod-shaped object 1 is kept approximately constant.

The operation of cutting off burrs generated on the rod-shaped object 1 using the apparatus configuration described above will be explained.

With the main body 16 in the retracted position and the cutter 2 in the open state, after the conveyance and fixation of the rod-like object 1 is completed, the cutter 2 mounted on the movable table 16 is advanced by the hydraulic jirinder 33 to the position where burr cutting starts, and the hydraulic cylinder 28 moves the profiling roller. Attach stick-shaped object 1 with 3. At this time, the cutter 2 is driven by the hydraulic motor 7. When the profiling roller 3 and the blade 2 come into contact with the surface of the rod-like object 1, the movable table 16 is moved back by the hydraulic cylinder 33 to cut and remove side burrs generated on the surface of the rod-like object 1.

(Effects of the Invention) As explained above, in the method of removing burrs from the surface of a rod-like object, the present invention uses a cutting device with a blade instead of manual work with a grinder, thereby improving the working environment, increasing processing capacity, and increasing quality. It has remarkable effects such as stabilization and labor saving. In addition, since it is equipped with a device that does not function as a knife, it is capable of cutting conical parts of rods from small diameters to large diameters, as well as removing side burrs of rods of various sizes from small diameters to large diameters. The purpose of the present invention is to provide a device with excellent functions that make it easy to use.

[Brief explanation of drawings]

Figs. 1 a, b, c, d, and e are conceptual diagrams showing the shape of the rod-like object and the relationship between the profiling roller and the milling cutter, and Figs. 2 a, b are schematic plan views showing an embodiment of the present invention. 3 is a sectional view of a profiling device showing an embodiment of the present invention, and FIG. 4 is a mechanical diagram of a profiling device showing an embodiment of the present invention. 1: Stick-shaped object, 2: Cutting tool, 3: Tracing roller,
4: Drive shaft, 5: Bearing, 6: Coupling, 7:
Hydraulic motor, 8: Bearing, 9: Small diameter eccentric boss with lever, 10: Large diameter eccentric boss, 11: Bearing cover, 12: Bracket, 13: Bearing, 14: Bearing, 15: Guide boss, 1
6: Moving table, 17: Sector gear, 18: Pinion with lever, 19: Casing (support member),
20: pin, 21: connecting rod, 22: opening/closing lever,
23: Bearing, 24: Pin, 25: Pin, 2
6: Small lever, 27: Pin, 28: Hydraulic cylinder, 29: Common bed, 30: Rail, 31:
Linear motion bearing, 32: Support frame, 33: Hydraulic cylinder.

Claims (1)

[Claims] 1. A moving table 16 that moves along the longitudinal axis of the rod-like object 1 is provided, and an opening/closing lever 22 that opens and closes toward the circumferential surface of the rod-like object 1 is provided on the moving table 16. A drive shaft 4 is rotatably attached via a support member 19, a cutter 2 is fixed to the tip of the drive shaft 4, and a small-diameter eccentric boss 9 with a lever is rotatably attached to the drive shaft 4 adjacent to the cutter 2. A rotatable support member 19 is provided on the outer periphery of the eccentric boss 9 with lever.
A slidable large-diameter eccentric boss 10 is provided on a bracket 12 provided at The pinion of the lever-equipped pinion 18 supported by the bracket 12 on the support member 19 is engaged with the sector gear 17 which has a pitch circle as the center and is fixed to the movable table 16, and the lever end of the lever-equipped small diameter eccentric boss 9 is engaged. A device for cutting burrs on the surface of a rod-like object, characterized in that the lever end of a pinion with a lever 18 is connected by a pin 20 via a connecting rod 21.