JP3485298B2 - Chip scraper - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a swarf receiving box for discharging swarf of a processing machine for processing a work by reciprocating a processing unit having a tool rest. The present invention relates to a chip scraping device to be carried in. 2. Description of the Related Art When chips generated from a processing point of a processing machine accumulate to a certain extent, an operator drops the chips into a chip receiving box with a chip scraper. In addition, a technique using a power of a motor or the like is known, and for example, Japanese Patent Application Laid-Open Nos.
It is disclosed in Japanese Patent Publication No. 1929776. [0003] However, in the above-mentioned technology, particularly when a plurality of automatic machines are in charge of one machine, wasteful and troublesome work is constantly generated, and the vicinity of a machining point is also reduced. It is not preferable that swarf accumulates on the surface because it affects the quality. [0004] Further, when the separation from the cutting oil or the coolant is insufficient, chips are put in the chip receiver, and the amount of recycled cutting oil or the like is reduced. SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a chip scraping device capable of easily separating chips from cutting oil or coolant without causing a worker to discharge chips. According to the present invention, a cutting unit provided with a tool rest reciprocates and carries a cutting chip carried into a chip receiving box for discharging chips from a processing machine for processing a work. In the powder scraping device, a passage is provided at a terminal of a chip shooter for scraping chips and carrying the chips into a chip receiving box, and a chain conveyor is mounted on an upper surface of the passage, and the chain conveyor is formed in an L shape with metal. A large number of scraping members are attached, and at least one end of the scraping members is attached so as to form a protrusion outside the chain of the chain conveyor, and a tip of a moving arm attached to the processing unit. The portion is provided with an engagement means that engages with the protrusion only in one direction, and the interval between the scraping members is configured not to be larger than the stroke of the processing unit. With the above-described structure, the chips K move by one pitch due to the reciprocation of the tool rest 1 and enter the chip receiving box 6 by the intermittent operation, during which the worker processes the chips. Since the passage 4 is inclined, the time required for the intermittent operation takes time, so that the separation of the cutting oil proceeds, and the connection port 14
The cutting oil can be collected by connecting a hose to b, and a separate power source is not required for collecting chips, so that efficiency is high. Embodiments of the present invention will be described below with reference to the drawings. In FIG. 1, a moving arm 2 is provided on a tool rest 1 attached to a processing unit of a processing machine (not shown). Then, the turret 1 is advanced as shown by the arrow, and chips generated by processing a workpiece (not shown) at the processing section D are processed by the chip chute 3 (not shown) from the processing section D to the floor beside the processing machine. Is dropped. At the end of the chip shooter 3, there is provided a chip passage 4 of the chip scraping device according to the present invention, and the passage 4 has a chip receiving box 6 side higher than an edge of the chip receiving box. A leg 5 for inclining the passage 4 is provided, and flanges 4a are formed on both sides and a lower side of the passage 4. A pipe connection for collecting cutting oil is provided at the lowest position (left corner in the figure) of the passage. A mouth 4b is provided. Referring also to FIG. 2, a chain conveyor C is provided on the upper surface of the passage 4, and the conveyor C comprises a pair of frames 10, a shaft 13, a chain 14, and four sprockets 12. A plurality of L-shaped scraping members 15 made of metal are provided so as to straddle the pair of chains 14, and at least one end of the scraping members 15 projects outside the chain 14. It is attached so as to constitute the portion 15a (see FIG. 3). Further, legs 11 are attached to the frame 10 so that the scraping member 15 has a slight (for example, 5 to 10 mm) gap t with the upper surface of the passage 4. A moving arm 2 for intermittently driving the chain conveyor C is attached to the tool rest 1, and the tip of the moving arm 2 is bent downward at a substantially right angle. The piece 18 is formed in the shape of a triangular prism.
Are rotatably supported by a shaft 17, and the stopper 1
At 9, it is restricted so as to be rotatable only in the R direction, and is configured to engage with the protrusion 15 a only when the moving arm 2 moves to the left. Further, a stopper 19 is always provided by a return spring 20 having one end fixed to the shaft 17.
It is urged to abut. The operation will be described below. At the time of machining, the tool rest 1 advances by L1 to the machining section D for machining the workpiece by the advance of the machining unit. The moving arm 2 provided on the tool rest 2 moves forward by the same dimension L1 (from right to left in the figure). In FIG. 3, when the moving arm 2 on the left side of the figure moves to the left from this position, the arm 2
Since the piece 18 at the distal end of can be rotated only in the R direction, it engages with the protruding portion 15a of the scraping member 15 and moves the scraping member 15 by the length of L1 to the left in the drawing. Therefore, the scraping member 15 on the side of the passage 4 moves to the right, and the chips K on the right side of the scraping member 15 move to the right on the passage 4. When the process is completed and the tool rest 1 returns to the original position, the arm 2 moves as shown in the right side of FIG. 3 (the figure shows the movement of the arm 2 and the chain 14 does not move), The piece 18 abuts on the protruding portion 15a of the scraping member and rotates in the R direction.
When the tip 18a passes through the right end of the
0 and enters the right side of the protruding portion 15a, enters the state on the left side of the figure, and when the next tool post advances, the scraping member 15 moves to L1.
Just move forward. In practice, the moving distance of the scraping member 15 is smaller than L1, but the distance L2 between the scraping members 15 may be determined so as to ensure the operation of the piece 18, and the shape of the piece and the one-way clutch, Alternatively, the function of the ratchet may be selected by combining conventionally known techniques, and is not limited to the above example. As described above, due to the reciprocation of the tool rest 1, the chips K move one pitch at a time due to the intermittent operation and enter the chip receiving box 6, during which the operator does not carry out the chip processing work, and 4 is inclined, the cutting oil is separated because of the time required for intermittent operation, the cutting oil can be collected by connecting a hose to the connection port 14b, and a separate power source is used for collecting the chips. It is efficient because it does not require The present invention is configured as described above,
The following excellent effects can be obtained. (1) There is no need for the operator to discharge chips. (2) Separation of chips and cutting oil or coolant is possible at the same time, and recycling of cutting oil is facilitated. (3) No new power source is required, and there is no increase in cost.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a chip scraping device showing an embodiment of the present invention. FIG. 2 is an enlarged side view showing a main part of FIG. FIG. 3 is a diagram showing an enlarged arrow A in FIG. 2 and explaining operation. [Explanation of Signs] 1 ... Tool post 2 ... Moving arm 3 ... Chip shooter 4 ... Chip passage 6 ... Chip receiving box 10 ... Frame 14 ... Chain 15 ... Scraping member 15a Projecting part 18 Piece 20 Return spring

Claims (1)

(1) A chip scraping device for carrying a chip into a chip receiving box for discharging chips of a processing machine for processing a work by reciprocating a processing unit having a tool post. In, at the end of the chip shooter is provided a passage for scraping the chips and carrying them into the chip receiving box, and attaching a chain conveyor on the upper surface of the passage,
A large number of L-shaped scraping members made of metal are attached to the chain conveyor, and at least one end of the scraping members is attached to form a protruding portion outside the chain of the chain conveyor. An engaging means for engaging the protrusion in only one direction is provided at a distal end of a moving arm attached to the processing unit, and a distance between the scraping members is not larger than a stroke of the processing unit. A chip scraping device.