A split-edge mirror-shaped finishing milling cutter

Abstract

The invention relates to the field of milling cutters, and discloses a split-edge mirror-shaped precision milling cutter, comprising a tool holder chuck, a clamping groove is provided at the outer circle of the lower end of the tool holder chuck, the clamping groove is for facilitating the clamping and fixing of an external clamping machine, a fixing column is fixedly installed vertically downward at the lower end of the tool holder chuck, a circle of clamping holes is provided at the outer circle of the fixing column, a tool rod is fixedly installed vertically downward at the lower end of the fixing column, blade mounting grooves are provided on both sides of the lower end of the tool rod, and an inner groove is provided on the arc-shaped side wall of the blade mounting groove. According to the invention, when the blade is damaged due to high-speed rotation, the screws fixed on the front wall of the semicircular blade closing block can be disassembled and taken out, and then a new blade can be installed. Similarly, when fixing the new blade, it is only necessary to pass the screw through the small hole and rotate and tighten it through the front threaded hole. The installation is convenient and the operation is simple, so as to achieve the effect of saving part of the material of the tool rod.

Description

Technical Field

[0001] The invention relates to the field of milling cutters, in particular to an edge-dividing mirror-shaped finishing milling cutter. Background Art

[0002] Milling cutters are tools used to process various molds, auto parts, and mechanical parts on CNC milling machines. With the development of CNC machining technology, milling cutters, as its main machining tool, have also developed rapidly. At present, there are many types of milling cutters according to the requirements of the processed products and structures. Most of the milling cutters currently on the market are integrated with the shank and blade, and once the blade is damaged, the entire shank and blade must be replaced, which will waste materials. In addition, when the blade is cutting an object, the temperature will rise due to the high-speed rotation, which will cause the blade to be unable to work continuously and damage its blade life. For this reason, we propose a split-edge mirror-shaped precision milling cutter. Summary of the invention

[0003] 1. Technical issues to be resolved

[0004] The present invention mainly solves the technical problems existing in the above-mentioned prior art and provides a split-edge mirror-shaped finishing milling cutter.

[0005] (II) Technical solution

[0006] In order to achieve the above-mentioned objectives, the present invention adopts the following technical scheme: a split-edge mirror-molded fine milling cutter, comprising a tool holder chuck, a clamping groove is provided at the outer circle of the lower end of the tool holder chuck, and the clamping groove is for facilitating the clamping and fixing of an external clamping machine, the lower end of the tool holder chuck is vertically fixedly installed with a fixing column, the outer circle of the fixing column is provided with a circle of clamping holes, and the lower end of the fixing column is vertically fixedly installed with a tool rod downward, blade mounting grooves are provided on both sides of the lower end of the tool rod, an inner groove is provided on the arc-shaped side wall of the blade mounting groove, a threaded hole is provided on the groove bottom surface of the blade mounting groove, the internal thread of the threaded hole is connected with a screw, and the outer circle of the screw is provided with an external thread, a high-pressure water spray hole is provided at the inner center position of the tool rod, and the high-pressure water spray hole runs through the entire tool rod, a high-pressure water spray hole is also provided at the inner middle position of the tool holder chuck, and the high-pressure water spray hole runs through the bottom end, and the high-pressure water spray hole on the tool holder chuck is communicated with the high-pressure water spray hole at the bottom end of the tool rod.

[0007] Preferably, an outer protrusion is provided at the upper end of the semicircular blade closing block. When the semicircular blade closing block coincides with the blade mounting groove, the outer protrusion is fully engaged with the inner protrusion groove, and the screw fixes the outer protrusion inside the inner protrusion groove.

[0008] Preferably, the semicircular blade closing block is complementary in shape to the blade mounting groove, and the high-pressure water spray hole extends all the way to the high-pressure water outlet. Small holes are provided on the front wall of the semicircular blade closing block, and each group of semicircular blade closing blocks has two groups of small holes.

[0009] Preferably, a high-pressure water outlet is provided at the center of the chip removal arc groove, and the high-pressure water outlet is connected to the high-pressure water spray hole inside the blade, and a cutting edge is provided at the top edge of the chip removal blade. A semicircular blade closing block is fixedly installed at one end of the connecting rod away from the blade.

[0010] Preferably, a blade is arranged at the lower end of the tool rod, a connecting rod is fixedly installed vertically upward at the middle position of the blade, the blade is a cross-shaped blade, and chip removal arc grooves are arranged at the four ends of the blade.

[0011] Beneficial Effects

[0012] The present invention provides a split-edge mirror-shaped fine milling cutter, which has the following beneficial effects:

[0013] (1) When the blade of the split-edge mirror-shaped fine milling cutter is damaged due to high-speed rotation, the screws fixed on the front wall of the semicircular arc blade closing block can be disassembled and taken out, and then a new blade can be installed. Similarly, when fixing the new blade, it is only necessary to pass the screw through the small hole and rotate it through the front threaded hole to tighten it. The installation is convenient and the operation is simple, thus achieving the effect of saving part of the material of the tool rod.

[0014] (2) The high-pressure water jet on the chuck of the split-edge mirror-shaped fine milling cutter extends all the way to the blade and communicates with the high-pressure water outlet. When the blade rotates at high speed to cut an object, the blade will generate high temperature, and then the high-pressure water outlet in the middle of the chip removal arc groove will spray water, thereby achieving the effect of cooling the blade and extending the service life of the blade. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is the overall structure diagram of the edge-dividing mirror-shaped finishing milling cutter of the present invention;

[0016] Figure 2 It is a partial schematic diagram of the knife bar of the present invention;

[0017] Figure 3 It is a partial schematic diagram of the screw of the present invention;

[0018] Figure 4 It is a partial schematic diagram of the blade of the present invention.

[0019] Legend:

[0020] 1. Tool handle chuck, 2. Clamping groove, 3. Fixed column, 4. Clamping hole, 5. Tool rod, 6. Blade mounting groove, 7. Internal groove, 8. Threaded hole, 9. Screw, 10. External thread, 11. High-pressure water spray hole, 12. Semicircular blade closing block, 13. Blade, 14. Chip removing arc groove, 15. High-pressure water outlet, 16. Cutting edge, 17. External convex block, 18. Small hole. DETAILED DESCRIPTION

[0021] The technical solution of the present invention is further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0022] Embodiment: A split-edge mirror-shaped finishing milling cutter, such as Figure 1-Figure 4 As shown, it includes a tool handle chuck 1, which has the appearance of a trapezoidal cylinder. A clamping groove 2 is provided at the outer circle of the lower end of the tool handle chuck 1. The clamping groove 2 is a circular ring-shaped groove. The clamping groove 2 is for facilitating the clamping and fixing of an external clamping machine. A fixing column 3 is fixedly installed vertically downward at the lower end of the tool handle chuck 1. A circle of clamping holes 4 are provided at the outer circle of the fixing column 3. The clamping hole 4 is a circular small hole. The clamping hole 4 is for the fixing bolt of the external clamping machine to be inserted into the inside of the clamping hole 4, further strengthening the fixation with the external clamping machine so that the tool handle chuck 1 will not derail when rotating. A tool rod 5 is fixedly installed vertically downward at the lower end of the fixing column 3. Blade mounting grooves 6 are provided on both sides of the lower end of the tool rod 5. The blade mounting groove 6 is a semicircular groove, and the arc-shaped side wall of the blade mounting groove 6 is provided with an inner groove 7. A threaded hole 8 is provided on the bottom surface of the blade mounting groove 6, and two groups of threaded holes 8 are provided inside each blade mounting groove 6. The internal threads of the threaded holes 8 are connected with screws 9, and the outer circle of the screws 9 is provided with external threads 10. A high-pressure water spray hole 11 is provided at the inner center position of the tool rod 5, and the high-pressure water spray hole 11 runs through the entire tool rod 5. The high-pressure water spray hole 11 is a small circular hole. The high-pressure water spray hole 11 can use pressure from an external machine to transmit high-pressure water to the high-pressure water spray hole 11, and the high-pressure water spray hole 11 can spray water. A high-pressure water spray hole 11 is also provided at the inner middle position of the tool handle chuck 1, and the high-pressure water spray hole 11 runs through the bottom end. The high-pressure water spray hole 11 on the tool handle chuck 1 is connected to the high-pressure water spray hole 11 at the bottom end of the tool rod 5.

[0023] A blade 13 is arranged at the lower end of the tool bar 5, and a connecting rod is fixedly installed vertically upward at the middle position of the blade 13. The blade 13 is a cross-shaped blade, and chip arc grooves 14 are arranged at the four ends of the blade 13. The chip arc groove 14 is an arc-shaped groove. When the blade 13 is running, the blade 13 rotates at a high speed to cut the object, and a lot of iron chips will be generated inside the chip arc groove 14. Then, the cut iron chips will be thrown out from the arc surface to the outside through centrifugal force, so that the iron chips are removed from the inside, so that the milling cutter can maintain a long working state, and the blade 13 will not be blocked and damaged by a large amount of iron chips. A high-pressure water outlet 15 is opened at the center of the chip arc groove 14, and the high The pressure outlet 15 is a circular hole, and the high-pressure water outlet 15 is connected to the high-pressure water spray hole 11 inside the blade 13. The high-pressure water spray hole 11 can use pressure through an external machine to fill water into the internal hole, and the high-pressure water will be transmitted along the inside of the high-pressure water spray hole 11 to the high-pressure water outlet 15, and then the water sprayed from the high-pressure water outlet 15 will collide with the inside of the blade 13 and the cutting object, and the high temperature generated when the blade 13 rotates at high speed to cut will be cooled, and the water can also take away some iron filings through centrifugal force when the blade 13 rotates at high speed, which has the function of removing some iron filings. A cutting edge 16 is provided at the top edge of the blade 13.

[0024] A semicircular blade closing block 12 is fixedly installed on the end of the connecting rod away from the blade 13, and there are two symmetrical groups of semicircular blade closing blocks 12. The semicircular blade closing block 12 is complementary in shape to the blade mounting groove 6, and the high-pressure water spray hole 11 extends all the way to the high-pressure water outlet 15. The front wall of the semicircular blade closing block 12 is provided with a small hole 18, and each group of semicircular blade closing blocks 12 has two groups of small holes 18. The upper end of the semicircular blade closing block 12 is provided with an outer protrusion 17. When the semicircular blade closing block 12 coincides with the blade mounting groove 6, the outer protrusion 17 is fully engaged with the inner convex groove 7, and the screw 9 fixes the outer protrusion 17 inside the inner convex groove 7. The texture at the arc of the inner convex groove 7 can increase the friction between the outer protrusion 17 and the convex groove 7, thereby making the outer protrusion 17 and the convex groove 7 more stably installed.

[0025] The working principle of the present invention is as follows: when an external machine clamps the tool handle chuck 1, a tool rod 5 is fixedly installed at the lower end of the fixed column 3, and the tool rod 5 and the blade 13 are movably installed. When the external machine is started, the tool handle chuck 1 will drive the blade 13 to rotate, and the blade mounting groove 6 at the front end of the tool rod 5 can be replaced with different blades 13, so that other blades 13 can be replaced when the blade 13 is damaged. The installation is convenient and the structure is simple. When the external machine is started, when the blade 13 cuts on the object to be cut, the internal high-pressure water spray holes 11 of the chip removal arc grooves 14 at the four ends spray high-pressure water, and the water will be thrown out around the cut object as the blade 13 rotates at a high speed. When the cutting edges 16 around the top of the blade 13 rotate at a high speed to generate temperature, the water will have a cooling effect, and the iron chips generated by the high-speed rotation of the cutting edges 16 will be thrown out to the outside along the chip removal arc grooves 14, and the water sprayed from the high-pressure water spray holes 11 will also have the effect of removing iron chips.

[0026] The above shows and describes the basic principles and main features of the present invention, that is, the advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A split-edge mirror-shaped finishing milling cutter, comprising a tool holder chuck (1), characterized in that: A fixing column (3) is fixedly installed vertically downward on the lower end of the tool handle chuck (1), a tool rod (5) is fixedly installed vertically downward on the lower end of the fixing column (3), blade mounting grooves (6) are provided on both sides of the lower end of the tool rod (5), the blade mounting grooves (6) are semicircular grooves, an inner groove (7) is provided on the arc-shaped side wall of the blade mounting groove (6), a threaded hole (8) is provided on the groove bottom surface of the blade mounting groove (6), and two groups of threaded holes (8) are provided inside each blade mounting groove (6), the internal threads of the threaded holes (8) are connected to screws (9), and the outer circle of the screws (9) is provided with external threads (10), and a high-pressure water spray hole (11) is provided at the inner center of the tool rod (5); A blade (13) is arranged at the lower end of the knife rod (5), a connecting rod is fixedly installed vertically upward at the middle position of the blade (13), the blade (13) is a cross-shaped blade, and chip arc grooves (14) are arranged at four ends of the blade (13), the chip arc grooves (14) are circular arc-shaped grooves, and a high-pressure water outlet (15) is opened at the center position of the chip arc groove (14); A semi-circular blade closing block (12) is fixedly mounted on one end of the connecting rod away from the blade (13); the high-pressure water spray hole (11) extends all the way to the high-pressure water outlet (15); a front wall of the semi-circular blade closing block (12) is provided with small holes (18); each group of semi-circular blade closing blocks (12) has two groups of small holes (18); and an outer protrusion (17) is provided at the upper end of the semi-circular blade closing block (12); The inner groove (7) is provided with patterns at the arc position.

2. The edge-dividing mirror-shaped finishing milling cutter according to claim 1, characterized in that: A clamping groove (2) is provided at the outer circumference of the lower end of the tool handle clamp (1), and the clamping groove (2) is a circular ring-shaped groove.

3. The edge-dividing mirror-shaped finishing milling cutter according to claim 1, characterized in that: The high-pressure water spray hole (11) runs through the entire knife bar (5), and the high-pressure water spray hole (11) is a small circular hole. A high-pressure water spray hole (11) is also provided in the middle position of the inner part of the knife handle chuck (1), and the high-pressure water spray hole (11) runs through the bottom end. The high-pressure water spray hole (11) on the knife handle chuck (1) is in communication with the high-pressure water spray hole (11) at the bottom end of the knife bar (5).

4. The edge-dividing mirror-shaped finishing milling cutter according to claim 1, characterized in that: The high-pressure water outlet (15) is a circular hole, and the high-pressure water outlet (15) is connected to the high-pressure water spray hole (11) inside the blade (13). A cutting edge (16) is provided at the top edge of the blade (13).

5. The edge-dividing mirror-shaped finishing milling cutter according to claim 1, characterized in that: The semicircular blade closing blocks (12) are symmetrically arranged in two groups, and the shapes of the semicircular blade closing blocks (12) and the blade mounting groove (6) are complementary.

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