JPH0120010B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an automatic deburring device that automatically processes burrs generated when, for example, a steel plate or the like is melted or cut.

In the past, burrs that were generated when cutting or fusing steel plates, etc., were generally done manually using a grinder. This was extremely dangerous and caused harm due to dust scattering.

There was also a semi-automatic deburring device that used endless sandpaper, but in this case the paper had a short lifespan and had to be replaced frequently, which was not only troublesome but also expensive. In addition, it took time to attach and detach each workpiece.

In any case, with the above-mentioned deburring method for a workpiece that has just been heated by fusing, it is difficult to deal with the heat, and the height and size of the burr are not uniform, so it is abnormal for the tool to be held with a constant pressing force. There are various drawbacks such as difficulty in dealing with repulsive force, and the current situation is that complete automation without any danger is desired.

In view of the above-mentioned current situation, the present invention provides a plurality of workpiece fixing devices at predetermined positions on a workpiece conveyor, and provides a traveling frame on at least one of the fixing devices so as to be horizontally movable in the conveyance direction of the conveyor. At the same time, a traveling platform is provided on at least one fixing device so as to be horizontally movable in a direction perpendicular to the conveying direction of the conveyor, and each traveling platform is provided with a holding member equipped with a scale hammer, and a cable is connected via a pulley provided at the top. The holding member is connected to a balance weight installed at an opposing position, and the holding member is raised and lowered by an air cylinder extending downward, and an automatic deburring device that can be pressed against the workpiece is used to remove plate thickness, size, etc. The purpose of this invention is to enable safe and completely automatic deburring of a continuous or random flow of different workpieces.

The following will be described in detail based on the illustrated embodiment, but for convenience, "left/right" and "top/bottom" in FIG. 1 will be referred to as "front/rear" and "right/left", respectively.
"Upper and lower" in FIG. 2 are referred to as "upper and lower."

Reference numeral 1 denotes a rectangular frame-shaped pedestal extending in the front-rear direction and formed into two layers, upper and lower. A conveyor 2 for transporting workpieces is provided in the upper center of the lower layer in the front-rear direction, and the conveyor 2
are four parts 2a, 2b, 2c, 2 sequentially from the rear.
It is divided into d parts, each of which can be driven and stopped independently.

Reference numerals 3a and 3b denote guide rails provided on the left and right upper end surfaces of the upper layer of the pedestal 1, which are connected to the conveyor section 2 through slide bearings 4a and 5a.
First and second traveling frames 4 and 5 are disposed in engagement with each other between a and 2b so as to be movable back and forth, respectively, and elongated cylinders 6 and 7 whose rear ends are pivotally supported by brackets provided on the upper surface of the upper layer of the pedestal 1; They are connected so that they can be driven.

8 and 8' are the first and second traveling frames 4 and 8, respectively.
The first and second deburring mechanism sections provided on the top of the 5 are almost the same in overall configuration, only the dimensions in the height direction are different.
I will explain about it.

8a is a member installed vertically on the lower surface of the first traveling frame 4, guide rails 8b and 8c are fixed to the rear and front side surfaces, and slide bearings 8d and 8e are respectively installed.
The holding member 8f and the balance weight 8g are engaged with each other so as to be vertically movable in a facing manner. Reference numeral 8h indicates a bracket 8i and an intermediate stand 8j (not provided in the second deburring mechanism section 8') on the first traveling frame 4.
The holding member 8f and the balance weight 8g are connected in a balanced manner by a cable 8l that engages the two pulleys 8h, and the bracket Air cylinder 8m installed downward with 8i
The tip of the rod is connected to the holding member 8f, so that the holding member 8f moves up and down by the expansion and contraction of the cylinder. 8n is a commercially available scale hammer that is attached to the lower end of the holding member 8f so that the angle can be adjusted in the horizontal and vertical directions, and the cutting edge provided at the tip vibrates in the front and rear directions due to air pressure. Although not shown in the figure, a sensor using a proximity switch or the like is provided to detect the work start position and end position. The scale hammer 8n is arranged in such a direction that it can act on the right side of the workpiece W in the first deburring mechanism section 8, and on the left side of the workpiece W in the second deburring mechanism section 8'. The balance weight 8g has a weight balanced with the holding member 8f to which the scale hammer 8n is attached.

9, 10, 11 are the conveyor parts 2a, 2
The first, second, and third stopper devices provided at the front end of the predetermined stop position of the workpiece shown in FIG.

That is, 9a is a cylinder erected upward under the conveyor portion 2a, and a stopper member 9b connected to the tip of the rod is guided by guide rolls 9c disposed at the front, rear, upper and lower sides, and is moved between the conveyor rollers. The stopper member 9b is raised and lowered to stop the moving workpiece W at the position, and lowered to allow the workpiece W to pass.

12, 13, 14, and 15 are the first to fourth workpiece fixing devices, and since they all have the same configuration except that only the first fixing device acts in the opposite direction to the other three, they are representative. The first fixing device 12 will be explained.

That is, 12a is a cylinder arranged horizontally on the lower left side of the conveyor part 2a toward the conveyor part, and integrally holds a large number of pressing members 12b arranged so as to slightly protrude from between the rollers on the left end side of the predetermined stopping position of the workpiece W. The connecting member 12c is connected to the tip of the rod so that the workpiece W can be clamped and fixed between the right side wall of the conveyor section 2a by the cylinder's extension operation.

Reference numerals 16 and 17 indicate first and second sludge removing devices provided only on the conveyor portions 2a and 2b, and they have the same configuration except that their directions are opposite, so the first sludge removing device 16 will be described as a representative example. do.

Reference numeral 16a denotes a sludge removing member disposed on the right side wall of the conveyor section 2a, and is configured to slide on the upper surface of the side wall toward the center when the cylinder 16b provided on the right side is extended.

Reference numerals 18a, 18b, 19a, and 19b are guide rails provided so as to be perpendicular to the conveyor 2 at positions near the left of the upper surface of the left and right connecting members of the upper layer of the pedestal 1 in the conveyor portions 2c and 2d, and are provided in the same manner as the first traveling pedestal 4 described above. 3rd and 4th can be moved left and right respectively.
Traveling frames 20 and 21 are arranged in engagement with each other, and are movable left and right by cylinders 22 and 23 supported on the upper surface of the frame 1.

24 and 24' are the third and fourth traveling frames 2, respectively.
In the third and fourth deburring mechanism parts provided at the upper center of 0 and 21, the scale hammers are arranged to move in the left and right direction in an opposing manner, and the structure is the same as that of the first deburring mechanism part 8 described above. Since there is, I will omit the explanation.

25 is a fourth stopper device, which is connected to the conveyor section 2d.
It is characterized in that it is provided at the rear end of the predetermined stopping position of the workpiece W, but the structure is different from the above-mentioned first part.
Since it is exactly the same as the stopper device 9, the explanation will be omitted.

Reference numeral 26 denotes a detector disposed on the side slightly in front of the fourth stopper device 25, which detects that the workpiece W has passed through this portion when the fourth stopper device 25 is in the lowered state, and causes the stopper device 25 to rise. At the same time, the conveyor section 2d is switched to backward drive, and the rear end of the workpiece W is brought into engagement with the fourth stopper device 25.

Reference numeral 27 denotes a slag carrying device disposed at the lower part spanning the entire length of the work conveyor 2, which includes a hopper 28 suspended from the conveyor 2, an endless apron conveyor 29 provided below the hopper 28, and a drive with a speed reducer. It consists of a device 30, which allows the slag to be carried out to a collecting section (not shown).

Next, the operation when deburring the four sides of the rectangular workpiece W will be explained.

First, the workpiece W is carried in from the rear end of the conveyor in the direction of arrow X by driving the conveyor portion 2a, and is stopped at a predetermined position by the first stopper device 9 in the raised position, and the conveyor portion 2a is also temporarily stopped. Next, by the expansion of the cylinder 12a, the pressing member 12b
There is a workpiece W between the conveyor section 2a and the right side wall.
Clamp and fix. Subsequently, by the extension operation of the air cylinder 8m, the scale hammer 8n is lowered together with the holding member 8f toward the front end of the right side of the workpiece W, and the tip of the hammer 8n presses the workpiece W with a predetermined force.

At this time, a sensor (not shown) provided near the tip of the hammer 8n sends a detection signal, which causes the elongated cylinder 6 to extend along with the vibration of the hammer 8n, and moves the first traveling frame 4 backwards to move the right side of the work W. Perform deburring.

When the hammer 8n reaches the end of the right side of the workpiece W, the vibration of the hammer 8n is stopped by the detection signal from the sensor, and the air cylinder 8m is operated for shortening, and then the traveling frame 4 is returned to its original position by the shortening operation of the long cylinder 6. , the lowering of the stopper member 9b by the shortening operation of the cylinder 9a, the return of the pressing member 12b to its original position by the shortening operation of the cylinder 12a (release of clamping of the workpiece W), re-driving of the conveyor section 2a, etc. are performed in sequence to lower the workpiece W. is transferred towards the next conveyor section 2b.

When the workpiece W passes through the position of the pressing member 12b, the cylinder 9a expands and returns the first stopper device 9 to its original state, and at the same time operates the cylinder 16b to move the slag removing member 16a forward and backward, thereby causing the conveyor section 2a to move forward and backward. The burr slag that had fallen on the right side edge falls onto the carry-out conveyor 29 via the hopper 28 from between the conveyor rollers.

One round of deburring work on the conveyor portion 2a is thus completed, and then the next workpiece W that has reached the entrance of the conveyor 2 is carried in, and the same work as described above is performed.

The workpiece W transferred from the conveyor section 2a to the conveyor section 2b is stopped by the second stopper device 10, clamped and fixed by the second workpiece fixing device 13, and lowered by the second deburring device in the same manner as described above.
Scale hammer 8' onto the front end of the left side of the work W
n positioning, hammer 8'n vibration, cylinder 7
The second traveling frame 5 is sequentially moved backward, and the left side of the workpiece W is deburred. When the deburring is completed, each mechanical section is returned to its original position and the workpiece W is transferred to the next position, that is, the conveyor section 2c, in the same manner as in the conveyor section 2a.

The conveyor section 2c also operates in exactly the same way as the conveyor sections 2a and 2b, but in this section, the moving direction of the third traveling frame 20 is perpendicular to the conveying direction of the conveyor 2, and the work W The front edge of the front edge is deburred.

The fourth stopper device 25 is in the lowered state when the work W that has completed the work on the conveyor portion 2c is transferred to the conveyor portion 2d, and when the work W passes through the fourth stopper device 25 due to the forward drive of the conveyor portion 2d. In response to the detection signal from the detector 26, the fourth stopper device 25 is raised, and the conveyor portion 2d is driven backward by reverse rotation, thereby positioning the rear end of the workpiece W.

The other operations are exactly the same as in the case of the conveyor section 2c, and the rear end edge of the work W is deburred. After completion, the work W is carried out and at the same time the fourth stopper device 25 is moved in preparation for receiving the next work W. is descending.

The sequential operation of each part other than those specifically mentioned in the above explanation is performed using appropriate detectors (not shown), and even if the work at each conveyor section 2a to 2d is completed, the work at the next stage position will not be completed until the work at the next stage is completed. It makes you wait.

Even if the scale hammer 8n etc. instantaneously receives an abnormal upward reaction force due to an abnormally protruding burr during each of the above-mentioned deburring operations, it is buffered by the air cylinder 8m that presses the hammer with a constant force, Adverse effects on each part are avoided, and the fallen burr slag is successively carried out by the slag carrying device 27.

In the above-mentioned embodiment, the work conveyor 2 was divided into four parts and operated separately, but the invention is not limited to this.
It may be divided into two or three parts, or it may be driven integrally, which may be selected as appropriate depending on the content of the work.

Furthermore, the configurations of the stopper device 9, workpiece fixing device 12, etc. are not limited to these, and other known means may be used as long as they achieve the same purpose.

As detailed above, when using the apparatus of the present invention, fully automated deburring work can be performed using the scale hammer, which fixes the workpiece at a predetermined position on the conveyor and holds it with a constant pressing force that has a buffering force. Even if the workpiece is a high-temperature object, it does not cause danger or fatigue to workers, and it does not cause dust pollution.
Furthermore, even if a momentary reaction force is applied to the hammer due to an abnormally protruding portion during work, each piece of equipment can be safely protected by the buffering force.

Furthermore, by dividing the transport conveyor into multiple locations and controlling the drive separately, it is possible to continuously deburr each side of square workpieces, and also to deburr random workpieces of different sizes and thicknesses. It can be applied continuously without any problem even in the flow.

Note that this device is applicable not only to deburring steel plates, but also to similar operations.

[Brief explanation of drawings]

The drawings show one embodiment of the device of the present invention, and FIG. 1 is a plan view, and FIGS. 2 to 4 are a cross-sectional view taken along the arrows -, a cross-sectional view taken along the arrows, and - in FIG. 1, respectively.
It is an arrow sectional view. In the figure, 2 is the conveyor for conveying the workpiece, and 4 is the first conveyor.
8 is a traveling frame, 8 is a first deburring mechanism, 8f is a holding member, 8n is a scale hammer, 9 is a first stopper device, and 12 is a workpiece fixing device.

Claims (1)

[Claims] 1. A workpiece conveyor that can be stopped intermittently, a plurality of workpiece fixing devices are provided at predetermined positions on the conveyor, and a traveling platform is provided on at least one of the fixing devices so as to be horizontally movable in the conveyance direction of the conveyor. At the same time, a traveling platform is provided on at least one fixing device so as to be horizontally movable in a direction perpendicular to the conveyance direction of the conveyor, and each traveling platform is provided with a holding member equipped with a scale hammer, and a scale hammer is installed on each traveling platform. An automatic deburring device characterized in that the holding member is connected to a balance weight provided at an opposing position by a cable, and the holding member is raised and lowered by an air cylinder extending downward, and can be pressed toward a workpiece.